CN217841804U - Durable automobile exhaust pipe - Google Patents

Durable automobile exhaust pipe Download PDF

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Publication number
CN217841804U
CN217841804U CN202222156867.9U CN202222156867U CN217841804U CN 217841804 U CN217841804 U CN 217841804U CN 202222156867 U CN202222156867 U CN 202222156867U CN 217841804 U CN217841804 U CN 217841804U
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Prior art keywords
exhaust pipe
wall
pipe unit
pipe
mouth
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CN202222156867.9U
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Chinese (zh)
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徐海祥
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Taicang Shizhong Auto Parts Co ltd
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Taicang Shizhong Auto Parts Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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Abstract

The utility model discloses a durable automobile exhaust pipe, at least, including first blast pipe unit and second blast pipe unit, at least 1 tip of first blast pipe unit is equipped with the horn mouth, the horn mouth is connected with first blast pipe unit body through spacing pipeline section, at least 1 tip of second blast pipe unit includes the mouth of pipe, the outer wall of mouth of pipe and the spacing inner wall of pipeline section are spacing to cooperate, be equipped with the recess that extends to its inside simultaneously between mouth of pipe and the second blast pipe unit body, wherein, the outer wall of mouth of pipe and the inner wall welding sealing connection of spacing pipeline section, form the seal welding ring, the horn mouth passes through the periphery of spinning technology seal installation at the recess, form the spinning airtight space, the seal welding ring is located the spinning airtight space; the utility model discloses can obviously improve sealed installation effect and life between first blast pipe unit and the second blast pipe unit, need not to set up other extra sealed additional structures, implementation cost is low, and machining efficiency is high.

Description

Durable automobile exhaust pipe
Technical Field
The utility model belongs to vehicle vent-pipe manufacturing field, concretely relates to durable type vehicle vent-pipe.
Background
The automobile exhaust pipe is used as a core component for exhaust emission of an automobile. Because the exhaust gas generated during the running of the automobile has some harmful substances, the exhaust gas is required to be transmitted to an exhaust gas purification treatment device (usually a three-way catalyst) by an automobile exhaust pipe for purification treatment.
However, the applicant finds that because a longer distance is reserved between the exhaust gas output position of the automobile and the three-way catalyst, the required length of the automobile exhaust pipe is longer, a plurality of exhaust pipe sections are generally required to be arranged and welded and assembled to form an integral automobile exhaust pipe, and because harmful substances are contained in the exhaust pipe for a long time, the welding position of the exhaust pipe has the hidden danger of corrosion and air leakage after long-term work; this obviously does not increase the structural and assembly costs if special sealing means are added, and may also introduce new technical problems.
The applicant therefore wishes to seek technical solutions that improve on the above technical problem.
Disclosure of Invention
In view of this, the utility model aims at providing a durable type vehicle vent-pipe can obviously improve sealed installation effect and life between first blast pipe unit and the second blast pipe unit, need not to set up other extra sealed additional structures, and the implementation cost is low, and machining efficiency is high.
The utility model adopts the technical scheme as follows:
the utility model provides a durable type vehicle vent-pipe, includes first blast pipe unit and second blast pipe unit at least, 1 at least tip of first blast pipe unit is equipped with the horn mouth, the horn mouth is through spacing pipeline section and this body coupling of first blast pipe unit, 1 at least tip of second blast pipe unit includes the mouth of pipe, orificial outer wall with the spacing cooperation of inner wall of spacing pipeline section, simultaneously be equipped with the recess to its inside extension between mouth of pipe and the second blast pipe unit body, wherein, orificial outer wall with the inner wall welding sealing connection of spacing pipeline section forms sealed welding ring, the horn mouth passes through spinning technology sealing installation the periphery of recess forms the spinning airtight space, sealed welding ring is located in the spinning airtight space.
Preferably, the groove is arc-shaped.
Preferably, the first exhaust pipe unit body and the second exhaust pipe unit body have the same inner diameter, and the first exhaust pipe unit body and the second exhaust pipe unit body have the same wall thickness.
Preferably, the diameter of the inner wall of the limiting pipe section is larger than the inner diameter of the first exhaust pipe unit body, and a limiting step is formed at the joint between the inner wall of the limiting pipe section and the first exhaust pipe unit body.
Preferably, the wall thickness range of the limiting pipe section is 4-8mm, the wall thickness range of the pipe orifice is 4-8mm, and the minimum wall thickness of the bell mouth is 0.2-1mm.
Preferably, the groove depth of the groove is 0.5-1.5mm.
Preferably, the length of the limiting pipe section is 10-20mm.
Preferably, still include third blast pipe unit, 1 at least tip of third blast pipe unit is equipped with the second horn mouth, the second horn mouth passes through the spacing pipeline section of second and this body coupling of third blast pipe unit, another tip of first blast pipe unit includes the second mouth of pipe, the orificial outer wall of second with the spacing cooperation of inner wall of the spacing pipeline section of second, simultaneously be equipped with the second recess to its inside extension between second mouth of pipe and the first blast pipe unit body, wherein, the orificial outer wall of second with the inner wall welding sealing connection of the spacing pipeline section of second forms the sealed welding ring of second, the second horn mouth passes through spinning technology sealing installation the periphery of second recess forms the airtight space of second spinning, the sealed welding ring of second is located in the airtight space of second spinning.
Preferably, the exhaust pipe further comprises a third exhaust pipe unit, wherein at least 1 end of the third exhaust pipe unit is provided with a second pipe orifice, the other end of the second exhaust pipe unit comprises a second bell mouth, the second bell mouth is connected with a second exhaust pipe unit body through a second limiting pipe section, the outer wall of the second pipe orifice is in limiting fit with the inner wall of the second limiting pipe section, and a second groove extending towards the inside of the second pipe orifice is formed between the second pipe orifice and the third exhaust pipe unit body; the outer wall of the second pipe orifice is connected with the inner wall of the second limiting pipe section in a welding and sealing mode to form a second sealing welding ring, the second horn mouth is installed on the periphery of the second groove in a sealing mode through a spinning process to form a second spinning closed space, and the second sealing welding ring is located in the second spinning closed space.
Preferably, the first exhaust pipe unit and the second exhaust pipe unit are made of stainless steel.
The utility model discloses a be equipped with the first blast pipe unit of tip horn mouth and spacing pipeline section to and be equipped with the second blast pipe unit of mouth of pipe and recess, when erection joint, with the spacing cooperation of the inner wall of orificial outer wall and spacing pipeline section, then with the inner wall welding sealing connection of orificial outer wall and spacing pipeline section, form the seal weld ring, pass through spinning technology seal installation with the horn mouth at last the periphery of recess forms the airtight space of spinning, lies in the airtight space of spinning with the seal weld ring setting, can obviously improve seal installation effect and life between first blast pipe unit and the second blast pipe unit, and then improved the utility model provides an automobile exhaust pipe's durability also need not to set up other additional sealed additional structures, and implementation cost is low and machining efficiency is high.
Drawings
FIG. 1 is a schematic view of a durable automobile exhaust pipe according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view of FIG. 1 at perspective A-A;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
fig. 4 is a schematic structural view of the first exhaust pipe unit and the second exhaust pipe unit in a state of connection to be installed according to the embodiment of the present invention;
fig. 5 is a schematic structural view of the first exhaust pipe unit and the second exhaust pipe unit after welding is completed according to the embodiment of the present invention;
FIG. 6 is a cross-sectional view of FIG. 5;
FIG. 7 is an enlarged view of the structure at B in FIG. 6;
fig. 8 is a schematic structural view of the first exhaust pipe unit and the second exhaust pipe unit after spinning is completed according to the embodiment of the present invention.
Detailed Description
The embodiment of the utility model discloses durable type vehicle vent-pipe, at least, include first blast pipe unit and second blast pipe unit, 1 at least tip of first blast pipe unit is equipped with the horn mouth, this body coupling of horn mouth through spacing pipeline section and first blast pipe unit, 1 at least tip of second blast pipe unit includes the mouth of pipe, orificial outer wall and the spacing cooperation of the inner wall of spacing pipeline section, be equipped with the recess to its inside extension simultaneously between mouth of pipe and the second blast pipe unit body, wherein, orificial outer wall and the inner wall welded seal of spacing pipeline section are connected, form sealed weld ring, the horn mouth passes through the periphery of spinning technology seal mounting at the recess, form the airtight space of spinning, sealed weld ring is located the airtight space of spinning.
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Example 1: referring to fig. 1, 2 and 3, a durable exhaust pipe for a vehicle includes a first exhaust pipe unit 10 and a second exhaust pipe unit 20, and particularly preferably, in order to ensure the installation strength, in the present embodiment, the first exhaust pipe unit 10 and the second exhaust pipe unit 20 are made of stainless steel;
in this embodiment, 1 end of the first exhaust pipe unit 10 is provided with a bell mouth 11, the bell mouth 11 is connected with the first exhaust pipe unit body 10a through a limiting pipe section 12, 1 end of the second exhaust pipe unit 20 includes a pipe orifice 21, an outer wall of the pipe orifice 21 is in limiting fit with an inner wall of the limiting pipe section 12, and a groove 22 (in an arc shape) extending towards the inside of the pipe orifice 21 and the second exhaust pipe unit body 20a is provided therebetween, wherein the outer wall of the pipe orifice 21 is welded (by a known process) to be hermetically connected with the inner wall of the limiting pipe section 12 to form a sealing welding ring 30, the bell mouth 11 is hermetically mounted on the periphery of the groove 22 by a spinning process (by a known process) to form a sealed spinning space 40, and the sealing welding ring 30 is located in the spinning sealed space 40.
Preferably, in order to facilitate smooth exhaust of exhaust gas generated from the automobile, in the present embodiment, the inner diameter of the first exhaust pipe unit body 10a and the inner diameter of the second exhaust pipe unit body 20a are equal, and the wall thickness of the first exhaust pipe unit body 10a and the wall thickness of the second exhaust pipe unit body 20a are equal;
in order to facilitate the effect of sealing the first exhaust pipe unit 10 and the second exhaust pipe unit 20, in the present embodiment, the diameter of the inner wall of the limiting pipe section 12 is greater than the inner diameter of the first exhaust pipe unit body 10a, and a limiting step 13 is formed at the connection between the inner wall of the limiting pipe section 12 and the first exhaust pipe unit body 10 a; particularly preferably, in the present embodiment, the wall thickness of the limiting pipe section 12 ranges from 4 mm to 8mm, the wall thickness of the pipe orifice 21 ranges from 4 mm to 8mm, and the minimum wall thickness of the bell mouth 11 ranges from 0.2 mm to 1mm; the groove depth of the groove 22 is 0.5-1.5mm; the length of the limiting pipe section 12 is 10-20mm.
In actual machining, please further refer to fig. 4, prepare the first exhaust pipe unit 10 and the second exhaust pipe unit 20, respectively; referring to fig. 5, 6 and 7, when the exhaust pipe is installed and connected, the outer wall of the pipe orifice 21 is in limit fit with the inner wall of the limit pipe section 12, then the outer wall of the pipe orifice 21 is welded and hermetically connected with the inner wall of the limit pipe section 12 to form the seal welding ring 30, referring to fig. 8, finally the bell mouth 11 is hermetically installed at the periphery of the groove 22 through a spinning process to form the spinning airtight space 40, and the seal welding ring 30 is arranged in the spinning airtight space 40, so that the seal installation effect and the service life between the first exhaust pipe unit 10 and the second exhaust pipe unit 20 can be obviously improved, the durability of the automobile exhaust pipe provided by the embodiment is further improved, other additional seal auxiliary structures are not required, the implementation cost is low, and the processing efficiency is high.
Example 2: the remaining technical solutions of this embodiment 2 are the same as embodiment 1, except that, in this embodiment 2, please refer to fig. 1, fig. 2, and fig. 3 in combination, the exhaust pipe further includes a third exhaust pipe unit, at least 1 end of the third exhaust pipe unit is provided with a second bell mouth, the second bell mouth is connected to the third exhaust pipe unit body through a second limiting pipe section, the other end of the first exhaust pipe unit includes a second pipe orifice, an outer wall of the second pipe orifice is in limiting fit with an inner wall of the second limiting pipe section, and a second groove extending toward the inside is provided between the second pipe orifice and the first exhaust pipe unit body, wherein an outer wall of the second pipe orifice is welded and sealed with the inner wall of the second limiting pipe section to form a second sealed welding ring, the second bell mouth is sealed and mounted on a periphery of the second groove through a spinning process to form a second spinning closed space, and the second sealed welding ring is located in the second spinning closed space.
Example 3: the remaining technical solutions of this embodiment 3 are the same as those of embodiment 1, except that, in this embodiment 3, please refer to fig. 1, fig. 2, and fig. 3 in combination, the exhaust pipe further includes a third exhaust pipe unit, at least 1 end of the third exhaust pipe unit is provided with a second pipe orifice, another end of the second exhaust pipe unit includes a second bell mouth, the second bell mouth is connected with the second exhaust pipe unit body through a second limiting pipe section, an outer wall of the second pipe orifice is in limiting fit with an inner wall of the second limiting pipe section, and a second groove extending toward the inside is provided between the second pipe orifice and the third exhaust pipe unit body; the outer wall of the second pipe orifice is connected with the inner wall of the second limiting pipe section in a welding and sealing mode to form a second sealing welding ring, the second horn mouth is installed on the periphery of the second groove in a sealing mode through a spinning process to form a second spinning closed space, and the second sealing welding ring is located in the second spinning closed space.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims (10)

1. The utility model provides a durable type vehicle vent-pipe, its characterized in that includes first blast pipe unit and second blast pipe unit at least, 1 at least tip of first blast pipe unit is equipped with the horn mouth, the horn mouth is through spacing pipeline section and this body coupling of first blast pipe unit, 1 at least tip of second blast pipe unit includes the mouth of pipe, orificial outer wall with the spacing cooperation of inner wall of spacing pipeline section, simultaneously be equipped with the recess to its inside extension between mouth of pipe and the second blast pipe unit body, wherein, orificial outer wall with the inner wall welding sealing connection of spacing pipeline section forms sealed welding ring, the horn mouth passes through spinning technology sealing installation the periphery of recess forms the spinning airtight space, sealed welding ring is located in the spinning airtight space.
2. The durable automobile exhaust pipe of claim 1 wherein the groove is arcuate in shape.
3. The durable automobile exhaust pipe according to claim 1, wherein an inner diameter of the first exhaust pipe unit body and an inner diameter of the second exhaust pipe unit body are equal, and a wall thickness of the first exhaust pipe unit body and a wall thickness of the second exhaust pipe unit body are equal.
4. The durable automobile exhaust pipe according to claim 3, wherein the diameter of the inner wall of the limiting pipe section is larger than the inner diameter of the first exhaust pipe unit body, and a limiting step is formed at the joint between the inner wall of the limiting pipe section and the first exhaust pipe unit body.
5. The durable automobile exhaust pipe according to claim 1, wherein the wall thickness of the limiting pipe section ranges from 4 mm to 8mm, the wall thickness of the pipe opening ranges from 4 mm to 8mm, and the minimum wall thickness of the bell mouth ranges from 0.2 mm to 1mm.
6. The exhaust pipe according to claim 1 or 5, wherein the groove has a depth of 0.5 to 1.5mm.
7. The durable automobile exhaust pipe according to claim 1, wherein the length of the limiting pipe section is 10-20mm.
8. The durable automobile exhaust pipe according to claim 1, further comprising a third exhaust pipe unit, wherein at least 1 end of the third exhaust pipe unit is provided with a second bell mouth, the second bell mouth is connected with the third exhaust pipe unit body through a second limiting pipe section, the other end of the first exhaust pipe unit comprises a second pipe orifice, the outer wall of the second pipe orifice is in limiting fit with the inner wall of the second limiting pipe section, and a second groove extending towards the inside of the second pipe orifice is formed between the second pipe orifice and the first exhaust pipe unit body, wherein the outer wall of the second pipe orifice is in welding and sealing connection with the inner wall of the second limiting pipe section to form a second sealing and welding ring, the second bell mouth is sealed and installed at the periphery of the second groove through a spinning process to form a second spinning closed space, and the second sealing and welding ring is located in the second spinning closed space.
9. The durable automobile exhaust pipe according to claim 1, further comprising a third exhaust pipe unit, wherein at least 1 end of the third exhaust pipe unit is provided with a second pipe orifice, the other end of the second exhaust pipe unit comprises a second bell-mouth, the second bell-mouth is connected with the second exhaust pipe unit body through a second limiting pipe section, the outer wall of the second pipe orifice is in limiting fit with the inner wall of the second limiting pipe section, and a second groove extending towards the inside of the second pipe orifice is formed between the second pipe orifice and the third exhaust pipe unit body; the outer wall of the second pipe orifice is connected with the inner wall of the second limiting pipe section in a welding and sealing mode to form a second sealing welding ring, the second horn mouth is mounted on the periphery of the second groove in a sealing mode through a spinning process to form a second spinning closed space, and the second sealing welding ring is located in the second spinning closed space.
10. The durable exhaust pipe for automobiles of claim 1 wherein said first and second exhaust pipe units are made of stainless steel.
CN202222156867.9U 2022-08-17 2022-08-17 Durable automobile exhaust pipe Active CN217841804U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222156867.9U CN217841804U (en) 2022-08-17 2022-08-17 Durable automobile exhaust pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222156867.9U CN217841804U (en) 2022-08-17 2022-08-17 Durable automobile exhaust pipe

Publications (1)

Publication Number Publication Date
CN217841804U true CN217841804U (en) 2022-11-18

Family

ID=84014811

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222156867.9U Active CN217841804U (en) 2022-08-17 2022-08-17 Durable automobile exhaust pipe

Country Status (1)

Country Link
CN (1) CN217841804U (en)

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