CN107165696B - On-gas pipeline system with pipeline falling detection function - Google Patents
On-gas pipeline system with pipeline falling detection function Download PDFInfo
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- CN107165696B CN107165696B CN201710541339.6A CN201710541339A CN107165696B CN 107165696 B CN107165696 B CN 107165696B CN 201710541339 A CN201710541339 A CN 201710541339A CN 107165696 B CN107165696 B CN 107165696B
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- electrode
- main pipeline
- pipeline
- ring
- quick connector
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating or supervising devices
- F02B77/083—Safety, indicating or supervising devices relating to maintenance, e.g. diagnostic device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating or supervising devices
- F02B77/088—Safety, indicating or supervising devices relating to tightness
Abstract
The invention provides a gas-conducting pipeline system with a pipeline falling detection function, which is used for pipeline connection of automobiles, and comprises a main pipeline, wherein a quick connector is arranged on the main pipeline and is inserted into the main pipeline; the circuit breaking detection switch comprises a first electrode, a second electrode and a sliding piece, wherein the first electrode is provided with a metal spring piece, the sliding piece is arranged below the metal spring piece, extends into the main pipeline and can slide up and down, and the metal spring piece is driven to move upwards by the upward sliding of the sliding piece so as to be in contact with the second electrode; a first sealing ring is sleeved at the root of the sliding part; a stop collar is mounted on the circular groove to secure the first seal ring in the circular groove. The invention has simple installation, and can realize the conduction of the gas circuit and the circuit only by inserting the quick connector at the two ends of the main pipeline.
Description
Technical Field
The invention relates to a pipeline of an engine crankcase ventilation system, in particular to a conducting gas pipeline system with a pipeline falling detection function.
Background
Vibration during engine operation, high and low temperature changes, durability problems with materials caused by long-term use, and vehicle maintenance affect the integrity of the crankcase ventilation pipe (e.g., pipe disconnection), and in order to ensure that pipe disconnection can be diagnosed online, the pipe is required to send a signal to be recognized by an engine ECU (Electronic Control Unit ) system when disconnected.
The clear definition of the limits of emission of pollutants and the measurement method of light vehicles of GB18352-2016 (sixth stage of china) of the ducts of crankcase ventilation systems requires the integrity to be guaranteed, and if this cannot be exempted, it must be diagnosed.
The crankcase ventilation pipe comprises a multi-section structure, such as a main pipe, a quick-plug female connector and a quick-plug male connector at two ends, or other connecting structures, and on-line diagnosis needs to judge whether the main pipe is disconnected or not, and whether the connectors at two ends are connected reliably or not. If a diagnostic scheme for the conductive line is employed, it is necessary to diagnose whether the pipe ends are disconnected.
The existing scheme is that the gas paths and the circuits of the two ends are separated, and the connecting wire connector is connected after the crankcase ventilation pipe is connected, so that the installation is complex, the structure is complex, and the problem is easy to occur.
Disclosure of Invention
The invention provides a gas-conducting pipeline system with a pipeline falling detection function, which is used for pipeline connection of automobiles, wherein the gas-conducting pipeline system comprises a main pipeline, a quick connector is arranged on the main pipeline, and the quick connector is inserted into the main pipeline;
the circuit breaking detection switch comprises a first electrode, a second electrode and a sliding piece, wherein the first electrode is provided with a metal spring piece, the sliding piece is arranged below the metal spring piece, and extends into the main pipeline and can slide up and down, and the metal spring piece is driven to move upwards by the upward sliding of the sliding piece so as to be in contact with the second electrode;
a first sealing ring is sleeved at the root of the sliding part and is positioned in a circular groove formed in the main pipeline;
and a limiting ring is arranged on the circular groove so as to fix the first sealing ring in the circular groove, a limiting groove is formed in the center of the top of the limiting ring, an annular stop block integrated with the sliding piece is arranged at the upper end of the sliding piece, and the annular stop block moves in the limiting groove.
The circuit breaking detection switch is further arranged in a buried wire groove at the joint of the main pipeline and the quick connector, the buried wire groove is provided with a partition board, and the first electrode and the second electrode are both arranged on the partition board;
the top of the first electrode and the top of the second electrode are exposed on the partition board, a cavity is formed below the partition board, the metal elastic sheet is located in the cavity, and the second electrode is provided with a metal contact exposed on the lower surface of the partition board.
The tail end of the metal elastic sheet is further fixed on the side wall of the partition board or the cavity.
Further the stop collar is located in the cavity.
The limiting groove is further internally provided with a spring, the spring is sleeved at the top of the sliding piece, and after the quick connector is separated from the main pipeline, the spring drives the sliding piece to slide downwards.
A sealing cover is arranged at the top of the burying groove, and/or
And the buried wire groove is filled with insulating materials.
The bottom end of the sliding piece is a cambered surface, and/or the tail end of the shaft sleeve section of the quick connector is a cambered surface.
A second sealing ring, a positioning ring and a clamping spring are further sleeved on the shaft sleeve section of the quick connector inserted into the main pipeline from inside to outside in sequence;
the outer ring of the positioning ring is provided with a bulge, the inner wall of the main pipeline is provided with a groove, and the bulge of the outer ring of the positioning ring is clamped in the groove in the main pipeline to fix the positioning ring in the main pipeline;
the inner ring of the clamp spring is provided with a conical clamping block, the shaft sleeve section of the quick connector is provided with a clamp ring, and the clamp ring is clamped at the inner side of the main pipeline through the conical clamping block.
The first electrode and the second electrode are further connected with an external electronic control unit through wires.
Further, the metal elastic sheet is in a w-shaped wave shape and is formed by combining two arc-shaped elastic sheets, and a bending part between the two arc-shaped elastic sheets is used for being in contact with the second electrode;
the sliding piece slides upwards to press the arc-shaped elastic piece of the metal elastic piece upwards, and then the bending part is driven to contact with the second electrode.
Compared with the prior art, the embodiment has the following advantages:
1. the installation is simple, and the conduction of gas circuit and circuit can be realized only by butt joint of the male connector and the female connector: after the quick connector is inserted, the sliding piece is pushed upwards so that the metal elastic piece of one electrode contacts with the other electrode; when the quick connector is accidentally separated, the sliding piece is reset due to the fact that no acting force is applied to the quick connector, and the metal elastic sheet is reset under the elastic action, so that the two electrodes are disconnected; meanwhile, as the electrodes are connected to an external electronic control unit, when 2 electrodes are disconnected, the electrodes can be timely detected by the electronic control unit;
2. the conductive part is sealed in the buried groove of the female connector, so that the stability is prevented from being influenced by external pollution;
3. the sliding piece and the quick connector are both provided with sealing rings, so that the sliding piece and the quick connector can be well isolated from the outside, and the service life is prolonged;
4. the design does not need to change the design of the male connector, only needs to be matched with the conductive female connector, and the old design of the crankcase can be used, so that the cost is saved;
5. the quick connector is firmly fixed in the main pipeline by the lock catch design.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an external view of a conducting gas piping system with a piping dropout detection function according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an assembly of the present invention in an embodiment;
FIGS. 3a-3b are schematic cross-sectional views of the quick connector fully inserted into the main conduit
Fig. 4a-4b are schematic cross-sectional views of a quick connector not fully inserted (or removed) into a main conduit.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.
In order to provide a thorough understanding of the present invention, detailed steps and detailed structures will be presented in the following description in order to explain the technical solution of the present invention. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments in addition to these detailed descriptions.
The invention provides a gas-conducting pipeline system with a pipeline falling detection function, which is used for pipeline connection of an automobile (for example, for conducting a cylinder cover/an oil-gas separator and an air filter), and is shown by referring to fig. 1-2, wherein the gas-conducting pipeline system comprises a main pipeline 1, a quick connector 2 is arranged on the main pipeline 1, and the quick connector 2 can be inserted into the main pipeline 1;
a disconnection detection switch is arranged at the joint of the main pipeline 1 and the quick connector 2, the disconnection detection switch comprises a first electrode 14, a second electrode 16 and a sliding piece 13, the first electrode 14 is provided with a metal elastic piece 141, the sliding piece 13 is arranged below the metal elastic piece 141, the bottom of the sliding piece 13 stretches into the inner wall of the main pipeline 1 and can slide upwards, and the metal elastic piece 141 is driven to move upwards by the up-and-down sliding of the sliding piece 13 so as to enable the metal elastic piece 141 to be in contact with the second electrode 16;
the root of the sliding part 13 is sleeved with a first sealing ring 11, and the first sealing ring 11 is positioned in a circular groove formed in the main pipeline;
the circular groove is provided with the limiting ring 12 to fix the first sealing ring 11 in the circular groove, the top center of the limiting ring 12 is provided with a limiting groove (namely, a groove on the top surface of the limiting ring 12 in fig. 2), the upper end of the sliding piece 13 is provided with an annular stop block (namely, an annular bulge of the sliding piece 13 in fig. 2) which is integrated with the sliding piece 13, the annular stop block moves in the limiting groove to limit the downward sliding amplitude of the annular stop block through the limiting groove, so that the sliding distance of the annular stop block is in the depth of the limiting groove, and the up-down sliding distance of the sliding piece 13 is limited to be equal to the depth of the limiting groove. The quick connector is a standard quick connector male plug in an automobile part, for example, a SAE J2044 standard quick connector is adopted.
In the present invention, after the quick connector 2 is inserted into the main pipeline 1, the quick connector 2 pushes the sliding member 13 upward to drive the sliding member 13 to slide upward and presses the metal elastic sheet 141 upward, so that the metal elastic sheet 141 contacts the second electrode 16 to connect the first electrode 14 and the second electrode 16, as shown in fig. 3a-3 b; in addition, when the quick connector 2 is released from the main pipe 1, the sliding member 13 slides down to reset the metal spring 141 to disconnect the first electrode 14 and the second electrode 16, as shown in fig. 4a to 4 b.
In an alternative embodiment of the present invention, the main pipeline 1 is provided with a quick connector for inserting the quick connector 2, and further, the quick connector 2 is a quick connector. In a specific application, the cylinder head cover/oil-gas separator and the air cleaner are respectively communicated with the main pipeline 1 through pipelines with quick-plug connectors.
In an alternative embodiment of the invention, the disconnection detecting switch is arranged in a buried line groove 10 at the connection part of the main pipeline 1 and the quick connector 2, the buried line groove is provided with a partition board 102, and the first electrode 14 and the second electrode 16 are both arranged on the partition board 102;
the top of the first electrode 14 and the top of the second electrode 16 are exposed above the separator 102, a cavity 101 is arranged below the separator, the metal spring plate 141 of the first electrode 14 is located in the cavity 101, and the second electrode 16 is provided with a metal contact exposed on the lower surface of the separator 102, so that the metal spring plate 141 can be in contact with the second electrode 16 by means of the metal contact.
In an alternative embodiment of the present invention, the end of the metal elastic piece 141 is fixed on the sidewall of the cavity 101 or the partition 102, and by fixing the end of the metal elastic piece 141, the stability and the elastic strength of the metal elastic piece 141 can be effectively ensured, and the elastic life of the metal elastic piece 141 is prolonged.
In an alternative embodiment of the invention, the stop ring 12 is located in the cavity 101 and is fixed, for example by means of bolts, snaps, adhesive, on the circular groove of the main pipe 1 for the first sealing ring 11.
In an alternative embodiment of the invention, the first electrode 14 and the second electrode 16 are wired to an external electronic control unit. Further, a sealing cover 15 is provided on the top of the buried trench 10, and/or the buried trench 10 is filled with an insulating material. Further, the buried groove 10 is provided at the top with an openable sealing cover 15 and/or is filled with an insulating resin at the buried groove 10 to insulate the contacts of the top ends of the first and second electrodes 14 and 16 connected to the wires from the outside. Or, after the first electrode 14 and the second electrode 16 are connected with an external electronic control unit through wires, the contact points connected with the first electrode and the second electrode are subjected to dispensing sealing treatment so as to isolate the metal contact points connected with the first electrode and the second electrode from the outside.
In an alternative embodiment of the present invention, the bottom end of the sliding member 13 is an arc surface, and/or the end of the sleeve section of the quick connector 2 inserted into the main pipeline 1 is an arc surface, so that during the process of inserting the quick connector 2 into the main pipeline 1, the end of the sleeve section of the quick connector 2 contacts the sliding member, so that the sliding member 13 is easily jacked up by the quick connector 2.
In an alternative embodiment of the invention, a second sealing ring 18, a positioning ring 19 and a clamping spring 17 are sleeved on a shaft sleeve section of the quick connector inserted into the main pipeline from inside to outside in sequence, a conical clamping block is arranged on the inner ring of the clamping spring 17, a clamping ring 21 is arranged on a shaft sleeve section of the quick connector 2 close to the opening end of the main pipeline 1, and the clamping ring 21 is clamped on the inner side of the main pipeline 1 through the conical clamping block. Further, the outer ring of the positioning ring 19 is provided with a protrusion, and a groove is formed in the inner wall of the main pipeline 1, and the protrusion of the outer ring of the positioning ring 19 is clamped in the groove in the main pipeline 1 to fix the positioning ring 19 in the main pipeline 1. In the process of inserting the quick male connector into the quick female connector, the snap ring 21 reaches the rear side of the snap ring 17 through the conical block, so that the quick male connector is prevented from falling off through the snap ring 17, the male connector is ensured to be clamped at a specific position after being inserted, and the quick male connector can be pulled out unless an operator presses down the anti-falling connector 171 through the exposed hole 172 on the main pipeline 1. The main pipeline 1 and the quick connector 2 (namely the quick connector) are mainly prevented from falling off by a clamp spring 17, the clamp spring 17 is preloaded on the quick connector at one end of the main pipeline 1, when the quick connector is inserted into the quick connector, the clamp spring 17 is pushed away by an annular step-shaped clamp ring 21 on the quick connector because one side of the clamp spring 17 is a conical surface, when the clamp ring 21 on the male connector is pushed into the left side of the clamp spring 17, the clamp spring 17 returns under the elastic action, the clamp ring 21 of the quick connector is limited on the left side of the clamp spring 17, and the quick connector is firmly inserted into the quick connector.
In an alternative embodiment of the invention, the inner wall of the main pipeline 1 is provided with a step 103 protruding towards the axis, the step 103 is abutted against the shaft sleeve section of the quick-connect male connector inserted into the main pipeline 1, and the second sealing ring 18 is limited to be unable to move by the step 103 and the positioning ring 19.
In an alternative embodiment of the present invention, the metal elastic sheet 141 has a wave shape of "w", and is formed by combining two arc-shaped elastic sheets, and a bending portion between the two arc-shaped elastic sheets is used for contacting with the second electrode 16; the sliding member 13 slides upwards to press the arc-shaped elastic sheet (e.g. the arc-shaped elastic sheet on the right side in the drawing) of the metal elastic sheet 141 upwards, so as to drive the bending portion to contact with the second electrode 16. According to the invention, the metal elastic piece 141 is set as the w-shaped elastic piece formed by combining the two arc-shaped elastic pieces, so that the elastic strength of the metal elastic piece 141 can be effectively improved, and after the sliding piece 13 slides downwards, the metal elastic piece 141 can be timely restored to the original position under the action of elasticity after no acting force is applied to the sliding piece 13, and the connection between the bending part between the two arc-shaped elastic pieces and the contact point of the second electrode 16 is disconnected.
In addition, a spring can be arranged at the top of the sliding piece 13, the spring is arranged in the limiting groove, and the sliding piece 13 slides upwards under the action of the quick connector 2; when the quick connector falls off, the sliding piece 13 can be more effectively rebounded downwards under the action of the spring, and the sliding piece is not required to be reset by the action of the metal elastic piece 141 alone, so that the service life is prolonged.
The invention designs a conducting gas joint structure capable of diagnosing whether a quick joint is connected in place, which mainly comprises a quick-plug female joint comprising two ends of a main pipeline 1 and a quick-plug male joint which can be inserted into the quick-plug female joint and is provided with a conducting mechanism, wherein the quick-plug female joint and the male joint are mainly used for connecting structures at two ends of a pipeline for conducting gas.
2 sealing rings are arranged in the quick-connect connector, and the second sealing ring 18 at the end part of the quick-connect connector can seal the gas in the pipeline without leakage; the first sealing ring 11 at the root of the sliding part 13 can ensure that the ambient gas in the pipeline cannot permeate into the buried groove, so that the electrode in the cavity is isolated from the outside and the channel in the main pipeline, corrosion to the electrode is avoided, and the service life of the electrode is prolonged. The quick-connect female connector and the quick-connect male connector also comprise a locking ring structure (a clamping ring 17 and a clamping ring 21), so that the male connector can be clamped at a specific position after being inserted, and the male connector can be pulled out unless an operator presses the anti-drop connector, so that the stability of the quick-connect male connector after being inserted is effectively ensured. In addition, the positioning ring 19 limits the second sealing ring 18 in the groove between the positioning ring 19 and the step 103 of the inner wall of the main pipeline, so that the second sealing ring is prevented from sliding out when the male connector is plugged and unplugged.
According to the technical scheme, under the condition that the gas circuit is conducted, the circuit is conducted; when the quick connector is separated, the metal elastic sheet 141 of the main pipeline female connector is disconnected with the conductive mechanism on the quick connector, and the circuit is disconnected, so that the circuit is monitored by an electronic control system (ECU).
Compared with the prior art, the embodiment has the following advantages:
1. the installation is simple, and the conduction of gas circuit and circuit can be realized only by butt joint of the male connector and the female connector: after the quick connector is inserted, the sliding piece is pushed upwards so that the metal elastic piece of one electrode contacts with the other electrode; after the quick connector is accidentally pulled out, the sliding part is reset due to the fact that no acting force is applied to the quick connector, and the metal elastic sheet is reset under the elastic action, so that the two electrodes are disconnected; meanwhile, as the electrodes are connected to an external electronic control unit, when 2 electrodes are disconnected, the electrodes can be timely detected by the electronic control unit;
2. the conductive part is sealed in the buried groove of the female connector, so that the stability is prevented from being influenced by external pollution;
3. the sliding piece and the quick connector are both provided with sealing rings, so that the sliding piece and the quick connector can be well isolated from the outside, and the service life is prolonged;
4. the design does not need to change the design of the male connector, only needs to be matched with the conductive female connector, and the old design of the crankcase can be used, so that the cost is saved;
5. the quick connector is firmly fixed in the main pipeline by the lock catch design.
The preferred embodiments of the present invention have been described above. It is to be understood that the invention is not limited to the specific embodiments described above, wherein devices and structures not described in detail are to be understood as being implemented in a manner common in the art; any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention or modifications to equivalent embodiments without departing from the scope of the technical solution of the present invention, using the methods and technical contents disclosed above, without affecting the essential content of the present invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a switch on gas piping system with pipeline drop detection function for the pipeline connection of car, its characterized in that, switch on gas piping system includes main pipeline, be furnished with quick connector on the main pipeline, quick connector inserts in the main pipeline;
the circuit breaking detection switch comprises a first electrode, a second electrode and a sliding piece, wherein the first electrode is provided with a metal spring piece, the sliding piece is arranged below the metal spring piece, and extends into the main pipeline and can slide up and down, and the metal spring piece is driven to move upwards by the upward sliding of the sliding piece so as to be in contact with the second electrode;
a first sealing ring is sleeved at the root of the sliding part and is positioned in a circular groove formed in the main pipeline;
and a limiting ring is arranged on the circular groove so as to fix the first sealing ring in the circular groove, a limiting groove is formed in the center of the top of the limiting ring, an annular stop block integrated with the sliding piece is arranged at the upper end of the sliding piece, and the annular stop block moves in the limiting groove.
2. The on-gas piping system with a pipe dropout detection function according to claim 1, wherein said disconnection detection switch is provided in a buried wiring groove at a junction of said main pipe and said quick connector, said buried wiring groove having a partition plate on which said first electrode and said second electrode are mounted;
the top of the first electrode and the top of the second electrode are exposed on the partition board, a cavity is formed below the partition board, the metal elastic sheet is located in the cavity, and the second electrode is provided with a metal contact exposed on the lower surface of the partition board.
3. The system of claim 2, wherein the metal spring is attached to a wall of the partition or the cavity.
4. The on-gas piping system with a pipe dropout detection function according to claim 2, wherein said retainer ring is located in said cavity.
5. The system of claim 1, wherein a spring is disposed in the limiting groove, the spring is sleeved on the top of the sliding member, and the sliding member is driven to slide downwards by the spring after the quick connector is separated from the main pipeline.
6. The system of claim 2, wherein the top of the buried line groove is provided with a sealing cover, and/or
And the buried wire groove is filled with insulating materials.
7. The on-gas pipeline system with pipeline drop detection function according to claim 1, wherein the bottom end of the sliding piece is an arc surface, and/or the end of the shaft sleeve section of the quick connector is an arc surface.
8. The on-gas pipeline system with the pipeline drop detection function according to claim 1, wherein a second sealing ring, a positioning ring and a clamping spring are sleeved on a shaft sleeve section of the quick connector inserted into the main pipeline from inside to outside in sequence;
the outer ring of the positioning ring is provided with a bulge, the inner wall of the main pipeline is provided with a groove, and the bulge of the outer ring of the positioning ring is clamped in the groove in the main pipeline to fix the positioning ring in the main pipeline;
the inner ring of the clamp spring is provided with a conical clamping block, the shaft sleeve section of the quick connector is provided with a clamp ring, and the clamp ring is clamped at the inner side of the main pipeline through the conical clamping block.
9. The on-gas piping system with a piping dropout detection function according to claim 1, wherein said first electrode and said second electrode are connected to an external electronic control unit through wires.
10. The system of claim 1, wherein the metal spring is in a wave shape of "w", and is formed by combining two arc spring plates, and a bending part between the two arc spring plates is used for contacting the second electrode;
the sliding piece slides upwards to press the arc-shaped elastic piece of the metal elastic piece upwards, and then the bending part is driven to contact with the second electrode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710541339.6A CN107165696B (en) | 2017-07-05 | 2017-07-05 | On-gas pipeline system with pipeline falling detection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710541339.6A CN107165696B (en) | 2017-07-05 | 2017-07-05 | On-gas pipeline system with pipeline falling detection function |
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| CN107165696B true CN107165696B (en) | 2023-06-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111502799B (en) | 2017-09-07 | 2022-03-01 | 天津大创科技有限公司 | Pipeline disconnection detection method |
| CN107676185A (en) * | 2017-09-20 | 2018-02-09 | 范金妹 | A kind of device disconnected using electrical signal detection crankcase bleed pipe |
| CN107939477B (en) * | 2017-12-14 | 2023-12-01 | 北京汽车动力总成有限公司 | Quick connector of crankcase ventilation system |
| CN108317321A (en) * | 2018-03-22 | 2018-07-24 | 恒勃控股股份有限公司 | A kind of quick female connector of automobile-used signal diagnostic system |
| CN108625927A (en) * | 2018-06-20 | 2018-10-09 | 安徽中鼎金亚汽车管件制造有限公司 | A kind of switch module for crankcase bleed pipe |
| CN108663203B (en) * | 2018-06-20 | 2024-01-16 | 安徽中鼎流体系统有限公司 | Crankcase ventilation pipe detecting system |
| CN109973737A (en) * | 2019-04-26 | 2019-07-05 | 森斯帕普汽车部件(苏州)有限公司 | A kind of quick connector with diagnosis identification piping connection situation |
| CN110108974B (en) * | 2019-05-22 | 2021-08-06 | 长城汽车股份有限公司 | Crankcase ventilation pipe connection diagnosis system and vehicle |
| CN113675674B (en) * | 2021-08-23 | 2022-04-29 | 深圳市中瑞联电子有限公司 | Precise wire plugging assembly with sealing and insulating effects and sealing method |
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| JP2000230717A (en) * | 1999-02-09 | 2000-08-22 | Sanyo Electric Co Ltd | Coming-off exhaust pipe detector for combustion appliance |
| EP1178290A3 (en) * | 2000-08-01 | 2003-06-25 | Autonetworks Technologies, Ltd. | Load sensor, load sensor unit and insertion detection device |
| CN101328824B (en) * | 2008-07-17 | 2010-06-23 | 无锡开普动力有限公司 | Crankcase ventilation apparatus of V-type engine |
| FR2955215B1 (en) * | 2010-01-08 | 2012-03-30 | Continental Automotive France | IGNITION CANDLE COMPRISING A CYLINDER PRESSURE SENSOR AND A CLICK DETECTOR |
| CN201650927U (en) * | 2010-03-04 | 2010-11-24 | 宝山钢铁股份有限公司 | Fixing device for high pressure hose |
| CN102853190B (en) * | 2012-09-26 | 2013-11-20 | 玉环汽车配件实业有限公司 | Fast joint |
| CN103977474A (en) * | 2014-02-19 | 2014-08-13 | 苏州泽德医疗器械有限公司 | Injection pump and pipeline dropping-off detection device for same |
| CN105953009B (en) * | 2016-06-24 | 2018-01-16 | 中航光电科技股份有限公司 | Pin end, female joint and rapid connector component |
| CN106706116A (en) * | 2016-12-06 | 2017-05-24 | 定洲智能系统(上海)有限公司 | Catheter shedding detection device, system and method |
| CN206903714U (en) * | 2017-07-05 | 2018-01-19 | 天津大创科技有限公司 | A kind of conducting gas piping system for the detection function that come off with pipeline |
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Denomination of invention: A conductive gas pipeline system with pipeline detachment detection function Effective date of registration: 20230728 Granted publication date: 20230606 Pledgee: China Resources Shenzhen International Investment Trust Co.,Ltd. Pledgor: TIANJIN DACHUANG TECHNOLOGY Co.,Ltd. Registration number: Y2023110000316 |
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