CN211397704U - Exhaust pipe partition cover assembly capable of preventing weld joint from cracking - Google Patents
Exhaust pipe partition cover assembly capable of preventing weld joint from cracking Download PDFInfo
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- CN211397704U CN211397704U CN201922133442.4U CN201922133442U CN211397704U CN 211397704 U CN211397704 U CN 211397704U CN 201922133442 U CN201922133442 U CN 201922133442U CN 211397704 U CN211397704 U CN 211397704U
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- exhaust pipe
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Abstract
The utility model discloses an exhaust pipe separation cover assembly capable of preventing welding seam cracking, which comprises an exhaust pipe and a heat insulation cover, wherein both ends of the exhaust pipe are respectively provided with a gas outlet and a first gas inlet, the side wall of the exhaust pipe is provided with a plurality of second gas inlets, a gas inlet branch pipe is fixed on the second gas inlets, the side wall of the exhaust pipe is also provided with a plurality of connecting plates, the heat insulation cover comprises a cover body and a connecting strip, the cover body is respectively provided with a plurality of first gaps and second gaps for the gas inlet branch pipe and the connecting plates to extend out, the connecting strip comprises an arc section and extending sections positioned at both ends of the arc section, two cover bodies are respectively covered at the outer side of the exhaust pipe and are spliced into a heat insulation outer layer, the connecting strip is positioned between the adjacent surfaces of two cover bodies, and the extending sections are respectively welded and fixed with two cover bodies, the bending generated by the extrusion of the arc-shaped section is utilized to absorb the thermal expansion and reduce the action of thermal stress.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a technical field of vehicle vent-pipe line system, especially a can prevent blast pipe that welding seam ftracture separates technical field of cover assembly.
[ background of the invention ]
An exhaust system for an automobile is used to discharge exhaust gas discharged by the operation of an engine while reducing noise and pollution of the exhaust gas. When the exhaust gas is exhausted from the exhaust pipe system of the automobile, a large amount of heat carried by the exhaust gas heats the exhaust pipe, so that the surface temperature of the exhaust pipe reaches 500-600 ℃. Because the space of the automobile chassis is limited, most of the parts around the automobile exhaust pipeline system are close to the automobile exhaust pipeline, and the normal operation of the surrounding parts has strict requirements on the temperature, if the temperature is high, safety accidents are easily caused, so that a heat insulation cover needs to be installed outside the exhaust pipeline. At present, a heat shield welded on an exhaust pipeline generally adopts a front-back welding mode or a left-right welding mode. When the exhaust gas is discharged, because the front and back temperatures of the automobile exhaust pipeline are inconsistent, the welding seams between the exhaust pipes are different in thermal expansion degree, and the condition of different thermal stress exists, so that the welding seams are easy to crack after the automobile exhaust pipeline is vibrated, and the heat shield can even fall off from the exhaust pipes in serious conditions.
[ Utility model ] content
The utility model aims at solving the problem among the prior art, providing a blast pipe that can prevent the welding seam fracture separates the cover assembly, can utilize the segmental arc to receive the produced crooked absorption thermal expansion of extrusion, reduces the thermal stress effect.
In order to achieve the purpose, the utility model provides an exhaust pipe shield assembly capable of preventing welding seams from cracking, which comprises an exhaust pipe and a heat shield, the two ends of the exhaust pipe are respectively provided with an air outlet and a first air inlet, the side wall of the exhaust pipe is provided with a plurality of second air inlets, an air inlet branch pipe is fixed on the second air inlet, a plurality of connecting plates are also arranged on the side wall of the exhaust pipe, the heat shield comprises a shield body and a connecting strip, the shield body is respectively provided with a plurality of first gaps and second gaps for the air inlet branch pipes and the connecting plate to extend out, the connecting strip comprises an arc-shaped section and extension sections positioned at two ends of the arc-shaped section, the two cover bodies are respectively covered on the outer side of the exhaust pipe and spliced to form a heat insulation outer layer, the connecting strip is positioned between the adjacent surfaces of the two cover bodies, and the extending sections are respectively welded and fixed with the two cover bodies.
Preferably, the end of the cover body is provided with a first slot, and the extension section is inserted into the first slot.
Preferably, the side surface of the extension section is provided with a first protrusion, the inner wall of the first slot is provided with a plurality of first notches which are matched with the first protrusion, and the inlet end of the first slot is provided with a first guide inclined plane.
Preferably, one end of the cover body is provided with an inserting strip, the other end of the cover body is provided with a second slot matched with the inserting strip, and the inserting strip is inserted into the second slot of the other cover body.
Preferably, the side of the cutting is provided with a second protrusion, the inner wall of the second slot is provided with a plurality of second notches matched with the second protrusion, and the inlet end of the second slot is provided with a second guide inclined plane.
Preferably, the outer side surface of the arc-shaped section is provided with a plurality of first grooves, and the inner side surface of the arc-shaped section is provided with a plurality of second grooves.
Preferably, the first grooves and the second grooves are arranged in the center of the arc-shaped section.
The utility model has the advantages that: the utility model discloses a two independent cover body phase joint from upper and lower both sides respectively to amalgamation forms thermal-insulated skin outside the blast pipe, later with two cover body phase joint rewelding through the connecting strip, accomplish the final fixed of heat exchanger, the whole installation is firm, swift, the heat of cover body junction scatters and disappears for a short time; the arc-shaped section is arranged on the connecting strip, and the arc-shaped section is bent to absorb thermal expansion generated by extrusion, so that the thermal stress effect is reduced, and cracking of a welding line caused by different thermal expansion degrees is avoided; the inner side and the outer side of the center of the arc-shaped section are respectively provided with the plurality of grooves, so that the arc-shaped section is assisted to bend, and the bending property of the arc-shaped section is effectively enhanced; the insertion depth of the inserting strip or the extending section is adjusted through the mutual matching of the protrusion and the notch, so that the size of a gap between the adjacent surfaces of the two cover bodies or the pre-bending degree of the bending section is controlled.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of an exhaust pipe shield assembly according to the present invention for preventing weld cracking;
FIG. 2 is a bottom view of an exhaust pipe shield assembly of the present invention to prevent weld cracking;
FIG. 3 is a top view of an exhaust pipe shield assembly according to the present invention for preventing weld cracking;
FIG. 4 is a sectional view taken along line A-A of FIG. 2;
fig. 5 is an enlarged schematic view at B of fig. 4.
In the figure: 1-exhaust pipe, 11-air outlet, 12-first air inlet, 13-air inlet branch pipe, 14-connecting plate, 2-heat shield, 21-shield body, 211-first slot, 2111-first notch, 2112-first guide inclined plane, 212-second slot, 2121-second notch, 2122-second guide inclined plane, 213-insert strip, 2131-second protrusion, 22-connecting strip, 221-arc section, 2211-first groove, 2212-second groove, 222-extending section and 2221-first protrusion.
[ detailed description ] embodiments
Referring to fig. 1 to 5, the exhaust pipe shield assembly capable of preventing a weld crack of the present invention includes an exhaust pipe 1 and a heat shield 2, an air outlet 11 and a first air inlet 12 are respectively disposed at two ends of the exhaust pipe 1, a plurality of second air inlets are disposed on a sidewall of the exhaust pipe 1, an air inlet branch pipe 13 is fixed on the second air inlets, a plurality of connecting plates 14 are further disposed on a sidewall of the exhaust pipe 1, the heat shield 2 includes a shield body 21 and a connecting strip 22, the shield body 21 is respectively provided with a plurality of first notches and second notches for the air inlet branch pipe 13 and the connecting plates 14 to extend out, the connecting strip 22 includes an arc-shaped section 221 and extending sections 222 disposed at two ends of the arc-shaped section 221, two shield bodies 21 are respectively disposed at an outer side of the exhaust pipe 1 and are combined to form a heat insulating outer layer, the connecting strip 22 is disposed between two adjacent surfaces of the shield bodies 21 and the extending sections 222 are respectively welded and fixed to the two shield bodies 21, the end of the cover body 21 is provided with a first slot 211, the extension section 222 is inserted into the first slot 211, the side of the extension section 222 is provided with a first protrusion 2221, the inner wall of the first slot 211 is provided with a plurality of first notches 2111 corresponding to the first protrusion 2221, the inlet end of the first slot 211 is provided with a first guiding inclined plane 2112, one end of the cover body 21 is provided with a slip 213, the other end of the cover body 21 is provided with a second slot 212 corresponding to the slip 213, the slip 213 is inserted into the second slot 212 of another cover body 21, the side of the slip 213 is provided with a second protrusion 2131, the inner wall of the second slot 212 is provided with a plurality of second notches 2121 corresponding to the second protrusion 2131, the inlet end of the second slot 212 is provided with a second guiding inclined plane 2122, the outer side of the arc-shaped section 221 is provided with a plurality of first grooves 2211, a plurality of second grooves 2212 are respectively arranged on the inner side surface of the arc-shaped section 221, and the first grooves 2211 and the second grooves 2212 are both arranged in the center of the arc-shaped section 221.
The utility model discloses the working process:
in the installation process, the two cover bodies 21 are respectively covered on the upper side and the lower side of the outer wall of the exhaust pipe 1, so that the insert 213 is inserted into the second slot 212 of the other cover body 21, and the second protrusion 2131 is clamped with the second notch 2121 as required, thereby adjusting the insertion depth of the insert 213. Subsequently, the two extension sections 222 of the connecting strip 22 are respectively inserted into the first slots 211 of the cover body 21 located at the upper and lower sides, and the first protrusions 2221 are engaged with the first notches 2111 as required, so as to adjust the insertion depth of the extension sections 222. Then, the extension 222 is welded to the cover body 21. In use, the exhaust pipe 1 is installed in a vehicle through a connection plate 14, and air intake is performed by connecting the first air inlet 12 and the air inlet branch pipes 13 with the cylinders, respectively.
The utility model discloses a two independent cover body phase joint from upper and lower both sides respectively to amalgamation forms thermal-insulated skin outside the blast pipe, later with two cover body phase joint rewelding through the connecting strip, accomplish the final fixed of heat exchanger, the whole installation is firm, swift, the heat of cover body junction scatters and disappears for a short time; the arc-shaped section is arranged on the connecting strip, and the arc-shaped section is bent to absorb thermal expansion generated by extrusion, so that the thermal stress effect is reduced, and cracking of a welding line caused by different thermal expansion degrees is avoided; the inner side and the outer side of the center of the arc-shaped section are respectively provided with the plurality of grooves, so that the arc-shaped section is assisted to bend, and the bending property of the arc-shaped section is effectively enhanced; the insertion depth of the inserting strip or the extending section is adjusted through the mutual matching of the protrusion and the notch, so that the size of a gap between the adjacent surfaces of the two cover bodies or the pre-bending degree of the bending section is controlled.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (7)
1. The utility model provides a can prevent blast pipe that welding seam ftractureed and separate cover assembly which characterized in that: including blast pipe (1) and thermal shield (2), the both ends of blast pipe (1) are equipped with gas outlet (11) and first air inlet (12) respectively, be equipped with a plurality of second air inlet on the lateral wall of blast pipe (1), be fixed with air inlet branch pipe (13) on the second air inlet, still be equipped with a plurality of connecting plate (14) on the lateral wall of blast pipe (1), thermal shield (2) are including cover body (21) and connecting strip (22), be equipped with first breach and second breach that a plurality of confession air inlet branch pipe (13) and connecting plate (14) stretched out on cover body (21) respectively, connecting strip (22) include segmental arc (221) and extension section (222) that are located segmental arc (221) both ends, two cover body (21) cover respectively and establish in the outside of blast pipe (1) and amalgamate into thermal-insulated outer layer, connecting strip (22) are located two between the adjacent face of cover body (21) and extension section (222) respectively And the two cover bodies (21) are welded and fixed.
2. The exhaust pipe shield assembly for preventing weld cracking of claim 1 wherein: the end part of the cover body (21) is provided with a first slot (211), and the extension section (222) is inserted into the first slot (211).
3. The exhaust pipe shield assembly for preventing weld cracking of claim 2 wherein: the side of the extension section (222) is provided with a first protrusion (2221), the inner wall of the first slot (211) is provided with a plurality of first notches (2111) matched with the first protrusion (2221), and the inlet end of the first slot (211) is provided with a first guide inclined surface (2112).
4. The exhaust pipe shield assembly for preventing weld cracking of claim 1 wherein: one end of the cover body (21) is provided with an inserting strip (213), the other end of the cover body (21) is provided with a second inserting groove (212) matched with the inserting strip (213), and the inserting strip (213) is inserted into the second inserting groove (212) of the other cover body (21).
5. The exhaust pipe shield assembly for preventing weld cracking of claim 4 wherein: the side surface of the inserting strip (213) is provided with a second protrusion (2131), the inner wall of the second slot (212) is provided with a plurality of second notches (2121) matched with the second protrusion (2131), and the inlet end of the second slot (212) is provided with a second guide inclined surface (2122).
6. The exhaust pipe shield assembly for preventing weld cracking of claim 1 wherein: the outer side surface of the arc-shaped section (221) is provided with a plurality of first grooves (2211), and the inner side surface of the arc-shaped section (221) is provided with a plurality of second grooves (2212).
7. The exhaust pipe shield assembly for preventing weld cracking of claim 6 wherein: the first grooves (2211) and the second grooves (2212) are arranged in the center of the arc-shaped section (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133442.4U CN211397704U (en) | 2019-12-03 | 2019-12-03 | Exhaust pipe partition cover assembly capable of preventing weld joint from cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133442.4U CN211397704U (en) | 2019-12-03 | 2019-12-03 | Exhaust pipe partition cover assembly capable of preventing weld joint from cracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211397704U true CN211397704U (en) | 2020-09-01 |
Family
ID=72210454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922133442.4U Active CN211397704U (en) | 2019-12-03 | 2019-12-03 | Exhaust pipe partition cover assembly capable of preventing weld joint from cracking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211397704U (en) |
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2019
- 2019-12-03 CN CN201922133442.4U patent/CN211397704U/en active Active
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Address after: 311800 No. 32 Millennium Road, Tao Zhu street, Zhuji, Shaoxing, Zhejiang Patentee after: Zhejiang Chuangge Technology Co.,Ltd. Address before: 311800 No. 32 Millennium Road, Tao Zhu street, Zhuji, Shaoxing, Zhejiang Patentee before: ZHEJIANG CHUANGGE TECHNOLOGY Co.,Ltd. |