CN212407905U - Double-barrelled structure is with being detected joint - Google Patents
Double-barrelled structure is with being detected joint Download PDFInfo
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- CN212407905U CN212407905U CN202020979419.7U CN202020979419U CN212407905U CN 212407905 U CN212407905 U CN 212407905U CN 202020979419 U CN202020979419 U CN 202020979419U CN 212407905 U CN212407905 U CN 212407905U
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Abstract
The utility model relates to a double-barrelled structure is with being detected joint belongs to car pipeline part technical field. The device comprises a detected inner joint and a detected outer joint, wherein the detected outer joint and the detected inner joint are provided with a plug hole and a plug joint which are matched with each other, and a first bypass channel is formed between the inner wall of the plug hole and the outer wall of the plug joint; the inner joint to be detected is provided with a bypass part, the bypass part is provided with a bypass hole along the axial direction, the outer joint to be detected is provided with an air outlet hole, a bypass channel of the joint to be detected is formed among the bypass hole, the first bypass channel and the air outlet hole, and the bypass channel of the joint to be detected is communicated with a leakage channel in the double pipe. When this application and installed part are not hard up, leak the air current and flow to attach fitting after the leak passage is flowed in through the by-pass hole for attach fitting's leakage diagnostic system in time reports to the police, reminds the operating personnel to detect, avoids the emergence of petrol leakage and trouble.
Description
Technical Field
The utility model relates to a double-barrelled structure is with being detected joint belongs to car pipeline part technical field.
Background
The breather pipe is used for connection between the engine and the crankcase. When the engine works, the engine oil and the gasoline mixture in the crankcase are separated out by the oil-gas separator, and the separated gasoline flows into the intake manifold through the vent pipe and then enters the engine for combustion. At present, a breather pipe adopts a single-pipe structure, one end of the breather pipe is connected with a crankcase, and the other end of the breather pipe is connected with an engine intake manifold and is fixedly connected with an engine cylinder body through screws. Because the engine generates vibration during working, the screw is easy to loosen in the long-term vibration process, and the joint of the vent pipe and the engine cylinder body is loosened, so that a gap is generated between the vent pipe and an air inlet manifold of the engine, and gasoline leakage is caused; if the air pipe is not checked for a long time and is serious, the other end of the air pipe can fall off, and further a fault occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a double-barrelled structure is with being detected joint is provided to above-mentioned prior art, guarantees the breather pipe both ends and the leakproofness of being connected of crankcase and engine, prevents the emergence of petrol leakage and trouble.
The utility model provides a technical scheme that above-mentioned problem adopted does: one end of the detected joint is connected with the double pipes, the other end of the detected joint is connected with a mounting piece, the detected joint comprises a detected inner joint and a detected outer joint, the detected inner joint and the detected outer joint are provided with a plug hole and a plug joint which are matched with each other, and a first bypass channel is formed between the inner wall of the plug hole and the outer wall of the plug joint; the inner joint to be detected is provided with a bypass part, the bypass part is provided with a bypass hole along the axial direction, the outer joint to be detected is provided with an air outlet hole, the bypass hole, the first bypass channel and the air outlet hole are communicated to form a bypass channel of the joint to be detected, and the bypass channel of the joint to be detected is communicated with a leakage channel in the double pipe.
The detected external connector is sequentially provided with a first inserting step and a second inserting step from inside to outside along the axial direction, the first inserting step is inserted into the outer pipe of the double pipe, the second inserting step is inserted into the inner pipe of the double pipe, and the air outlet is formed between the first inserting step and the second inserting step.
The first insertion step is higher than the second insertion step.
The inner wall of the plug hole is provided with a plurality of convex ribs along the axial direction, the convex ribs are uniformly spaced, a flow distribution channel is formed between every two adjacent convex ribs, and the first bypass channel is formed by a plurality of flow distribution channels.
The plug hole and the bypass part are provided with a groove and a boss which are matched with each other; the bypass hole penetrates through the boss, and the bypass hole is partially exposed out of the groove.
The venthole is provided with a plurality of ventholes which are circumferentially arranged at even intervals and correspond to the flow dividing channel.
The bypass piece is further provided with a mounting hole, the end face of the mounting hole is flush with the end face of the bypass hole, a screw penetrates through the mounting hole and is fixedly connected with the mounting piece, so that the mounting hole is tightly attached to the mounting piece, and the end face of the bypass hole is tightly attached to the mounting piece.
Compared with the prior art, the utility model has the advantages of: a double-pipe structure is used to detect the joint, the engine will generate vibration when working, the long-time vibration will loosen the screw, and then cause the gap between the end surface of the bypass hole of the detected joint and the engine shell, the atmosphere flows into the bypass pipeline of the detected joint through the gap to flow to the leakage channel, then flows out from the bypass channel of the connection joint, the leakage diagnosis system on the bypass channel of the connection joint senses the gas leakage, and alarms in time, reminds the operator to detect; the connection sealing performance of the two ends of the breather pipe, the crankcase and the engine is ensured, and the gasoline leakage and the fault are avoided.
Drawings
Fig. 1 is a three-dimensional schematic view of a double-tube structure according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a connection joint in a double-tube structure according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a detected joint for a double-tube structure according to an embodiment of the present invention;
fig. 4 is a three-dimensional schematic view of a detected joint for a double-pipe structure according to an embodiment of the present invention;
in the figure, an outer pipe 1, an inner pipe 2, a detected joint 3, a detected outer joint 3.1, a gas outlet hole 3.2, a detected inner joint 3.3, a bypass part 3.4, a boss 3.5, a bypass hole 3.6, an installation hole 3.7, a groove 3.8, a convex rib 3.9, a connecting joint 4, a leakage channel 5, a main channel 6, a bypass channel of the detected joint 7 and a bypass channel of the connecting joint 8 are arranged.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, 2 and 3, in the embodiment, the double-tube structure used for the detected joint includes an inner tube 2, an inner cavity of the inner tube 2 is a main channel 6 for gasoline to flow through, and an outer tube 1 is sleeved outside the inner tube 2, so that a gap is left between an outer wall of the inner tube 2 and an inner wall of the outer tube 1 to form a leakage channel 5. The two ends of the inner pipe 2 and the outer pipe 1 are provided with a detected joint 3 and a connecting joint 4, the detected joint 3 and the connecting joint 4 are respectively provided with a bypass channel, the through holes of the detected joint 3 and the connecting joint 4 are respectively communicated with a main channel 6, and the two bypass channels are respectively communicated with a leakage channel 5. The bypass channel 8 of the connection joint is connected with the leakage diagnosis system, and the air inlet end face of the bypass channel 7 of the detected joint is tightly attached to the mounting piece. When the air inlet end face of the bypass channel 7 of the detected joint is not attached to the mounting part, the atmosphere flows into the leakage channel 5 through the air inlet end of the bypass channel 7 of the detected joint and then flows out through the air outlet end of the bypass channel 8 of the connecting joint, and the leakage diagnosis system can give an alarm in time when sensing that gas leakage exists.
As shown in fig. 4, the detected joint 3 includes a detected inner joint 3.3 and a detected outer joint 3.1, the detected outer joint 3.1 has a plug hole, the detected inner joint 3.3 has a plug joint, and the top end of the plug hole is provided with an inward concave groove 3.8; a bypass part 3.4 is arranged on the detected inner joint 3.3, a boss 3.5 is arranged at the bottom of the bypass part 3.4, and the boss 3.5 is matched with the groove 3.8; the bypass part 3.4 is provided with a bypass hole 3.6 along the axial direction, and the bypass hole 3.6 penetrates through the boss 3.5; a plurality of convex ribs 3.9 are circumferentially and uniformly arranged on the inner wall of the inserting hole at intervals, and a flow distribution channel is respectively formed between every two adjacent convex ribs 3.9; the detected outer joint 3.1 is provided with a plurality of air outlet holes 3.2 which are circumferentially arranged at even intervals, the air outlet holes 3.2 are arranged between the first inserting steps and the second inserting steps of the detected joint 3, and the air outlet holes correspond to the shunting channels, so that the shunting channels are communicated with the corresponding air outlet holes. The plug is inserted into the plug hole, so that the boss 3.5 is arranged in the groove 3.8, the part of the bypass hole 3.6 is exposed out of the groove 3.8, the bypass hole 3.6 is communicated with the shunt channel, and the bypass channel 7 of the detected connector is formed by the communication of the bypass hole 3.6, the shunt channel and the air outlet hole 3.2. Still set up mounting hole 3.7 on bypass 3.4, the mounting hole 3.7 terminal surface flushes with bypass 3.6 terminal surfaces, wears to establish the screw in the mounting hole 3.7 and during with installed part fixed connection, mounting hole 3.7 closely laminates with the installed part for bypass 3.6 terminal surfaces closely laminate with the installed part. And a sealing ring is also arranged on the end surface of the bypass hole 3.6, so that the sealing property of the end surface of the bypass hole 3.6 and the mounting part is further enhanced.
The connecting joint in the double-tube structure is connected with the crankcase, the detected joint is connected with an air inlet manifold of the engine, the engine oil and the gasoline mixture in the crankcase are separated by the gasoline separator, the separated gasoline flows into the main channel through the connecting joint through hole and then flows into the air inlet manifold of the engine through the through hole of the detected joint, and the separated gasoline enters the engine to be combusted. When the engine works, vibration is generated, the screw is loosened due to long-time vibration, so that a gap is generated between the end face of the bypass hole of the detected joint and the shell of the engine, air flows into a bypass pipeline of the detected joint through the gap, then flows to a leakage channel, and then flows out from an outlet of the bypass channel of the connecting joint, a leakage diagnosis system at the outlet end of the bypass channel of the connecting joint senses gas leakage and gives an alarm in time to remind an operator to detect; the connection sealing performance of the two ends of the breather pipe, the crankcase and the engine is ensured, and the gasoline leakage and the fault are avoided.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (7)
1. The utility model provides a double-barrelled structure is with being detected joint which characterized in that: one end of the detected joint is connected with the double pipes, the other end of the detected joint is connected with the mounting piece, the detected joint comprises a detected inner joint and a detected outer joint, the detected outer joint and the detected inner joint are provided with a plug hole and a plug joint which are matched with each other, and a first bypass channel is formed between the inner wall of the plug hole and the outer wall of the plug joint; the inner joint to be detected is provided with a bypass part, the bypass part is provided with a bypass hole along the axial direction, the outer joint to be detected is provided with an air outlet hole, the bypass hole, the first bypass channel and the air outlet hole are communicated to form a bypass channel of the joint to be detected, and the bypass channel of the joint to be detected is communicated with a leakage channel in the double pipe.
2. The inspected joint for a double pipe structure according to claim 1, wherein: the detected external connector is sequentially provided with a first inserting step and a second inserting step from inside to outside along the axial direction, the first inserting step is inserted into the outer pipe of the double pipe, the second inserting step is inserted into the inner pipe of the double pipe, and the air outlet is formed between the first inserting step and the second inserting step.
3. The inspected joint for a double pipe structure according to claim 2, wherein: the first insertion step is higher than the second insertion step.
4. The inspected joint for a double pipe structure according to claim 1, wherein: the inner wall of the plug hole is provided with a plurality of convex ribs along the axial direction, the convex ribs are uniformly spaced, a flow distribution channel is formed between every two adjacent convex ribs, and the first bypass channel is formed by a plurality of flow distribution channels.
5. The inspected joint for a double pipe structure according to claim 1, wherein: the plug hole and the bypass part are provided with a groove and a boss which are matched with each other; the bypass hole penetrates through the boss, and the bypass hole is partially exposed out of the groove.
6. The inspected joint for a double pipe structure according to claim 2, wherein: the venthole is provided with a plurality of ventholes which are circumferentially arranged at even intervals and correspond to the flow dividing channel.
7. The inspected joint for a double pipe structure according to claim 1, wherein: the bypass piece is further provided with a mounting hole, the end face of the mounting hole is flush with the end face of the bypass hole, a screw penetrates through the mounting hole and is fixedly connected with the mounting piece, so that the mounting hole is tightly attached to the mounting piece, and the end face of the bypass hole is tightly attached to the mounting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020979419.7U CN212407905U (en) | 2020-06-02 | 2020-06-02 | Double-barrelled structure is with being detected joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020979419.7U CN212407905U (en) | 2020-06-02 | 2020-06-02 | Double-barrelled structure is with being detected joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212407905U true CN212407905U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020979419.7U Active CN212407905U (en) | 2020-06-02 | 2020-06-02 | Double-barrelled structure is with being detected joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212407905U (en) |
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2020
- 2020-06-02 CN CN202020979419.7U patent/CN212407905U/en active Active
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