CN217107373U - Air return pipe joint component for automobile air compressor - Google Patents
Air return pipe joint component for automobile air compressor Download PDFInfo
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- CN217107373U CN217107373U CN202221017568.0U CN202221017568U CN217107373U CN 217107373 U CN217107373 U CN 217107373U CN 202221017568 U CN202221017568 U CN 202221017568U CN 217107373 U CN217107373 U CN 217107373U
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Abstract
The utility model relates to a return air pipe joint assembly for an automobile air compressor, which comprises a plastic tee joint, a nesting pipe and a lining pipe, wherein the plastic tee joint is provided with an air inlet, an air outlet and a free opening; the lining pipe comprises a pipe head ring and a plurality of cambered surface elastic pieces arranged on the front end face of the pipe head ring, the cambered surface elastic pieces are uniformly arranged around the inner opening of the pipe head ring at intervals to form a section of elastic circular pipe body in a surrounding mode, and the outer wall of the front end of each cambered surface elastic piece is provided with a protruding block so as to form a ring buckle at the periphery of the front end of the elastic circular pipe body. The utility model discloses stronger locking force and higher reliability have.
Description
Technical Field
The utility model relates to an automobile air compressor especially relates to an automobile air compressor's return air coupling.
Background
The return air pipe joint of the traditional automobile air compressor generally comprises a plastic spiral pipe and a locking nut screwed on the plastic spiral pipe, the locking force of the return air pipe joint of the structure is not strong, the pressure resistance is not enough, and the return air pipe is easy to fall off under the use working conditions of high pressure, high temperature, frequent inflation and deflation and the like in the pipe.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at improving traditional automobile compressor's return air coupling and exist the above-mentioned not enough.
A muffler adapter assembly for an automotive air compressor comprising:
a plastic tee joint; the plastic tee joint is provided with an air inlet, an air outlet and a free opening;
nesting; the nesting is pre-installed in an air inlet of the plastic tee joint through being pre-installed in a forming die of the plastic tee joint, and is firmly pre-connected with the plastic tee joint through a convex rib ring and a groove ring which are circumferentially arranged on the outer wall of the nesting to form an assembly which cannot be disassembled; a locking ring is convexly arranged on the circumferential direction of the inner wall of the nest;
a liner tube; the lining pipe comprises a pipe head ring and a plurality of cambered surface elastic pieces arranged on the front end face of the pipe head ring, the cambered surface elastic pieces are uniformly arranged around the inner opening of the pipe head ring at intervals to form a section of elastic circular pipe body in a surrounding mode, and the outer wall of the front end of each cambered surface elastic piece is provided with a convex block so as to form a ring buckle at the periphery of the front end of the elastic circular pipe body; the outer diameter of the pipe head ring is larger than the diameter of the outer opening of the nesting, the inner diameter of the pipe head ring is slightly larger than the outer diameter of the pipe end of the air return pipe, the outer diameter of the elastic circular pipe body is approximately equal to the inner diameter of the locking ring, the inner diameter of the elastic circular pipe body is approximately equal to the outer diameter of the pipe end of the air return pipe, the outer diameter of the buckle is larger than the inner diameter of the locking ring, so that the elastic circular pipe body can be used for fixedly sleeving the pipe end of the air return pipe and inserting the elastic circular pipe body into the nesting together with the air return pipe, the buckle can be used for clamping the locking ring from the inner side, the lining pipe and the air return pipe are prevented from falling off from the nesting and the plastic tee, and the pipe head ring is exposed out of the nesting.
Preferably, the plastic tee is T-shaped and comprises a main pipe and a manifold vertically arranged on the outer wall of the middle part of the main pipe, the air inlet and the free port are respectively arranged at two ends of the main pipe, and the air outlet is arranged on the manifold.
Preferably, the outer end face of the nest is flush with the air inlet end face of the plastic tee.
Preferably, the outer mouth of the nest is provided with a first flared mouth expanding towards the outer end of the nest so that the elastic round pipe body is inserted into the nest along the first flared mouth.
Preferably, the inner opening of the nesting is a second flared opening expanding towards the inner end of the nesting, and the inner opening of the second flared opening is in butt joint with the locking ring opening, so that the ring buckle is unlocked from the locking ring along the second flared opening when the inner lining pipe is pulled out.
Preferably, the rear opening of the pipe head ring is provided with a third flared opening expanding backwards so that the air return pipe can be inserted into the elastic round pipe body along the third flared opening.
Preferably, the front top of each lug is provided with a slope inclined towards the front lower part so as to facilitate the ring buckle to slide into the inner side of the lock ring along the slope when the elastic round tube body is inserted into the nest.
Preferably, the front end of each cambered surface elastic sheet is slightly folded inwards to form an inward contraction opening at the front end of the elastic round pipe body.
Preferably, the inner surface of each cambered surface elastic sheet is circumferentially provided with inner teeth.
The utility model discloses a nested preinstallation in order to form the assembly that can not the split with the plastics tee bend in the air inlet of plastics tee bend, the flexible locking mode elastic connection muffler of interior bushing pipe accessible and nested, the muffler internal gas pressure is higher, and the interior bushing pipe is just big to the occlusal force of muffler, and the muffler is difficult to deviate from in following the plastics tee bend, has that locking force is stronger, the higher advantage of reliability.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a lining pipe according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a nested structure according to an embodiment of the present invention;
fig. 4 is a schematic structural view of the embodiment of the present invention after the inner liner tube is inserted and nested;
fig. 5 is a cross-sectional view of the overall structure of the muffler of the present invention.
Detailed Description
The present invention will be described with reference to the accompanying drawings and specific embodiments.
Referring to FIGS. 1-5:
a return air pipe joint assembly for an automobile air compressor comprises a plastic tee joint 1, a nesting sleeve 2 and a lining pipe 3.
The plastic tee joint 1 is T-shaped and consists of a main pipe 1-1 and a manifold 1-2 vertically arranged on the outer wall of the middle part of the main pipe 1-1, the ports at the two ends of the main pipe 1-1 are respectively provided with an air inlet and a free port, and the pipe orifice of the manifold 1-2 is provided with an air outlet.
The nest 2 is pre-installed in an air inlet of the plastic tee joint 1 by being pre-installed in a forming die in the injection molding process of the plastic tee joint 1, and is firmly pre-connected with the plastic tee joint 1 through a convex rib ring 2.1 and a groove ring 2.2 which are circumferentially arranged on the outer wall of the nest 2 to form an assembly which cannot be disassembled; the outer end surface of the nest 2 is flush with the air inlet end surface of the plastic tee joint 1, and a locking ring 2.3 is arranged on the circumferential direction of the inner wall in a protruding mode; the outer opening of the nesting is set as a first bell mouth 2.4 expanding towards the outer end of the nesting 2, the inner opening is set as a second bell mouth 2.5 expanding towards the inner end of the nesting 2, and the inner opening of the second bell mouth 2.5 is butted with a ring opening of a locking ring 2.3.
The lining pipe 3 comprises a pipe head ring 3-1 and a plurality of cambered surface shrapnels 3-21 arranged on the front end surface of the pipe head ring 3-1; the rear opening of the pipe head ring 3-1 is provided with a third flared opening 3-11 expanding backwards; a plurality of cambered surface elastic pieces 3-21 are uniformly arranged around the inner opening of the pipe head ring 3-1 at intervals to form a section of elastic round pipe body 3-2 in a surrounding manner; the outer wall of the front end of each cambered surface elastic sheet 3-21 is provided with a convex block 3-211 so as to synthesize a ring buckle 3-3 at the periphery of the front end of the elastic round pipe body 3-2; the front end of each cambered surface shrapnel 3-21 is slightly folded inwards to form an inward necking at the front end of the elastic round pipe body 3-2, and the inner surface of each cambered surface shrapnel 3-21 close to the front end is circumferentially provided with inner teeth 3-212; the front top of each bump 3-211 is provided with a bevel 3-2111 inclined forward and downward.
The outer diameter of the pipe head ring 3-1 is larger than the outer opening diameter of the nesting 2, the inner diameter is slightly larger than the pipe end outer diameter of the air return pipe, the outer diameter of the elastic circular pipe body 3-2 is approximately equal to the inner diameter of the locking ring 2.3, the inner diameter is approximately equal to the pipe end outer diameter of the air return pipe, the outer diameter of the buckle 3-3 is larger than the inner diameter of the locking ring 2.3, so that the elastic circular pipe body 3-2 can be sleeved and fixed with the pipe end of the air return pipe and is inserted into the nesting 2 together with the air return pipe, the buckle 3-3 can be clamped with the locking ring 2.3 from the inner side, the lining pipe 3 and the air return pipe are prevented from falling off from the nesting 2 and the plastic tee joint 1, and the pipe head ring 3-1 is exposed out of the nesting 2.
When the plastic tee joint is used, the pipe end of the air return pipe 4 is inserted into the elastic round pipe body 3-2 of the inner lining pipe 3 until the pipe end reaches an inner contraction opening, then the elastic round pipe body 3-2 with the air return pipe 4 is inserted into the nest 2, the ring buckle 3-3 and the elastic round pipe body 3-2 contract during insertion, the ring buckle 3-3 is reset after insertion and buckles the ring buckle 2.3 from the inner side, so that the inner lining pipe 3 and the air return pipe 4 are connected with the nest 2 and the plastic tee joint 1, a certain biting force is formed on the air return pipe 4 by the inner teeth 3-212 on the inner lining pipe 3, the higher the air pressure in the air return pipe 4 is, the larger the biting force of the inner teeth 3-212 is, and the air return pipe 4 and the inner lining pipe 3 cannot be separated from an air inlet of the plastic tee joint 1.
Claims (9)
1. A muffler adapter assembly for an automotive air compressor, comprising:
a plastic tee (1); the plastic tee joint (1) is provided with an air inlet, an air outlet and a free port;
nesting (2); the nesting (2) is pre-installed in an air inlet of the plastic tee joint (1) through being pre-installed in a forming die of the plastic tee joint (1), and is firmly pre-connected with the plastic tee joint (1) through a convex rib ring (2.1) and a groove ring (2.2) which are circumferentially arranged on the outer wall of the nesting (2) to form a non-detachable assembly; a locking ring (2.3) is convexly arranged on the circumferential direction of the inner wall of the nesting (2);
a lining tube (3); the inner lining pipe (3) comprises a pipe head ring (3-1) and a plurality of cambered surface elastic pieces (3-21) arranged on the front end face of the pipe head ring (3-1), the cambered surface elastic pieces (3-21) are uniformly arranged around the inner opening of the pipe head ring (3-1) at intervals to form a section of elastic circular pipe body (3-2) in a surrounding mode, the outer wall of the front end of each cambered surface elastic piece (3-21) is provided with a protruding block (3-211) so that a ring buckle (3-3) is formed on the periphery of the front end of the elastic circular pipe body (3-2); the outer diameter of the pipe head ring (3-1) is larger than the outer opening diameter of the nesting (2), the inner diameter is slightly larger than the pipe end outer diameter of the air return pipe, the outer diameter of the elastic round pipe body (3-2) is approximately equal to the inner diameter of the locking ring (2.3), the inner diameter is approximately equal to the pipe end outer diameter of the air return pipe, the outer diameter of the buckle (3-3) is larger than the inner diameter of the locking ring (2.3), so that the elastic round pipe body (3-2) can be sleeved and fixed with the pipe end of the air return pipe and is inserted into the nesting (2) together with the air return pipe, the buckle (3-3) can be clamped with the locking ring (2.3) from the inner side to prevent the lining pipe (3) and the air return pipe from falling off the nesting (2) and the plastic tee (1), and the pipe head ring (3-1) can be exposed out of the nesting (2).
2. A return air pipe joint assembly for an automotive air compressor as claimed in claim 1, wherein: the plastic tee joint (1) is T-shaped and comprises a main pipe (1-1) and a manifold (1-2) vertically arranged on the outer wall of the middle part of the main pipe (1-1), wherein an air inlet and a free port are respectively arranged at two ends of the main pipe (1-1), and an air outlet is arranged on the manifold (1-2).
3. A return air pipe joint assembly for an automotive air compressor as claimed in claim 1, wherein: the outer end surface of the nesting (2) is flush with the air inlet end surface of the plastic tee joint (1).
4. A return air pipe joint assembly for an automotive air compressor as claimed in claim 1, wherein: the outer opening of the nesting (2) is provided with a first flared opening (2.4) expanding towards the outer end of the nesting (2) so that the elastic round pipe body (3-2) can be inserted into the nesting (2) along the first flared opening (2.4).
5. A return air pipe joint assembly for an automotive air compressor as claimed in claim 1, wherein: the inner opening of the nesting (2) is a second bell mouth (2.5) expanding towards the inner end of the nesting (2), and the inner opening of the second bell mouth (2.5) is in butt joint with the ring opening of the locking ring (2.3), so that the ring buckle (3-3) is unlocked from the locking ring (2.3) along the second bell mouth (2.5) when the lining pipe (3) is pulled out.
6. A return air pipe joint assembly for an automotive air compressor as claimed in claim 1, wherein: the rear opening of the pipe head ring (3-1) is provided with a third flared opening (3-11) which expands backwards so that the air return pipe can be inserted into the elastic round pipe body (3-2) along the third flared opening (3-11).
7. A return air pipe joint assembly for an automotive air compressor as claimed in claim 1, wherein: the front top of each lug (3-211) is provided with an inclined surface (3-2111) which is inclined towards the front lower part so that the buckle (3-3) slides into the inner side of the locking ring (2.3) along the inclined surface (3-2111) when the elastic round pipe body (3-2) is inserted into the nesting (2).
8. A return air pipe joint assembly for an automotive air compressor as claimed in claim 1, wherein: the front end of each cambered surface shrapnel (3-21) is slightly folded inwards to form an inward necking at the front end of the elastic round pipe body (3-2).
9. A return air pipe joint assembly for an automotive air compressor as claimed in claim 1, wherein: inner teeth (3-212) are circumferentially arranged on the inner surface of each cambered surface shrapnel (3-21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221017568.0U CN217107373U (en) | 2022-04-27 | 2022-04-27 | Air return pipe joint component for automobile air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221017568.0U CN217107373U (en) | 2022-04-27 | 2022-04-27 | Air return pipe joint component for automobile air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217107373U true CN217107373U (en) | 2022-08-02 |
Family
ID=82587230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221017568.0U Active CN217107373U (en) | 2022-04-27 | 2022-04-27 | Air return pipe joint component for automobile air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217107373U (en) |
-
2022
- 2022-04-27 CN CN202221017568.0U patent/CN217107373U/en active Active
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