CN212318183U - Ventilation pipeline structure with switch valve for EVAP system test - Google Patents
Ventilation pipeline structure with switch valve for EVAP system test Download PDFInfo
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- CN212318183U CN212318183U CN202021107336.5U CN202021107336U CN212318183U CN 212318183 U CN212318183 U CN 212318183U CN 202021107336 U CN202021107336 U CN 202021107336U CN 212318183 U CN212318183 U CN 212318183U
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Abstract
The utility model discloses a test of EVAP system is with air pipe structure, including input air supply pipe, input air supply pipe is through the external detection device of pneumatic quick-operation joint, input air supply pipe is through the multi-port valve and nylon union coupling, the mid-mounting of nylon pipe has the ooff valve, the gas outlet department of nylon pipe installs quick-operation joint, quick-operation joint includes female head of quick-operation joint and the public head of quick-operation joint, the nylon pipe is through the interface connection of quick-operation joint and EVAP system. The scheme can conveniently realize quick and convenient connection of each interface of the automobile EVAP system and the detection device through the arrangement of each structure, can open or close the corresponding detection pipeline as required, and is convenient to operate and high in working efficiency.
Description
Technical Field
The utility model relates to a car EVAP system test technical field especially relates to a test of EVAP system is with vent line structure with ooff valve.
Background
Gasoline readily volatilizes into gasoline vapor. The gasoline vapor volatilized from the gasoline in the automobile fuel tank is stored in the carbon tank activated carbon and the fuel tank filler cap, and in the pipeline cavity between the carbon tank activated carbon and the carbon tank electromagnetic valve (EVAP system). According to the control of a running computer, the oil vapor of the activated carbon is fully absorbed to a certain degree, and the oil vapor is pumped into the engine through the carbon tank electromagnetic valve to participate in combustion and work. The carbon canister activated carbon then has the ability to absorb gasoline vapors again.
However, when the activated carbon is aged to cause insufficient capacity of adsorbing gasoline vapor, the gasoline vapor enters the outside through the carbon tank air vent to pollute the atmospheric environment, which is leakage due to insufficient adsorption of the carbon tank of the EVAP system. Or a tiny damaged port is formed in the pipeline, and the gasoline vapor can enter the outside through the tiny damaged port to pollute the atmospheric environment, which is damaged and leaked by the EVAP system.
Along with the improvement of environmental protection standards, the country pays more and more attention to the fuel vapor leakage of gasoline vehicles, and the device is needed to rapidly detect the insufficient adsorption leakage of the EVAP system carbon tank and the damaged leakage of the EVAP system of the vehicle.
The detection device needs to be connected with one or more interfaces on the EVAP system through the air vent joint; at the same time, other interfaces on the EVAP system need to be shut down for the detection device to perform leak detection.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and providing a ventilation pipeline structure with a switch valve for EVAP system test.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a test of EVAP system with ooff valve is with vent line structure, includes input air supply pipe, input air supply pipe passes through the external detection device of pneumatic quick-operation joint, input air supply pipe passes through the multi-way valve and nylon union coupling, the mid-mounting of nylon pipe has the ooff valve, the quick connector is installed to the gas outlet department of nylon pipe, quick connector includes female head of quick connector and the public head of quick connector, the nylon pipe is through the interface connection of quick connector with the EVAP system.
Furthermore, the multi-way valve installed on the input air source pipe is a four-way valve, the four-way valve is simultaneously connected with the three nylon pipes, a quick connector female head is installed at the air outlet of one nylon pipe, and a quick connector male head is installed at the air outlets of the other two nylon pipes.
Further, the switch valve is an electromagnetic switch valve.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the plug-in test device is provided with the switch valve, the connector is changed into a plug at any time, and after the plug-in test device is sequentially connected to the corresponding interface of the EVAP system, the plug-in test device does not need to be plugged again in the whole test period, the service life of the sealing structure is shortened due to the fact that the plug-in test device is plugged for many times, and meanwhile the labor intensity.
2. If an electromagnetic control switch valve is adopted and matched with a necessary control device, the electromagnetic valve can be remotely controlled, so that a detector is far away from a detected vehicle, and the amount of gasoline vapor leaked from an EVAP system sucked by the detector is reduced.
3. If an electromagnetic control switch valve is adopted and matched with a necessary control device, the electromagnetic valve can be intelligently controlled, so that intelligent detection is realized by a non-intelligent detection device.
4. Adopt multi-ported valve and a plurality of the utility model discloses a connect, then can more comprehensively carry out the test that need not the frock and dismantle to the EVAP system to avoid dismantling and remount the test fixture and arouse test error.
In conclusion, the scheme can conveniently realize quick and convenient connection of each interface of the automobile EVAP system and the detection device through the arrangement of each structure, can open or close the corresponding detection pipeline as required, and is convenient to operate and high in working efficiency.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is the utility model provides a test of EVAP system with ooff valve is with ventilation line structure's overall structure sketch map.
In the figure: 1 input air source pipe, 10 pneumatic quick connectors, 2 multi-way valves, 3 nylon pipes, 4 switch valves, 5 quick connector female heads and 50 quick connector male heads.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1, a test of EVAP system with ooff valve is with vent line structure, including input air supply pipe 1, input air supply pipe 1 passes through the external detection device of pneumatic quick-operation joint 10, input air supply pipe 1 is connected with nylon pipe 3 through multi-ported valve 2, the mid-mounting of nylon pipe 3 has ooff valve 4, nylon pipe 3's gas outlet department installs quick-operation joint, quick-operation joint includes female first 5 of quick-operation joint and quick-operation joint public head 50, nylon pipe 3 passes through the interface connection of quick-operation joint with the EVAP system.
Further, the multi-way valve 2 installed on the input air source pipe 1 is a four-way valve, the four-way valve is simultaneously connected with the three nylon pipes 3, the quick connector female head 5 is installed at the air outlet of one nylon pipe 3, and the quick connector male head 50 is installed at the air outlet of the other two nylon pipes 3.
Further, the on-off valve 4 is an electromagnetic on-off valve. The electromagnetic switch valve can be remotely controlled by matching with a necessary control device, so that a detector is far away from a detected vehicle, and the amount of gasoline vapor leaked from the EVAP system sucked by the detector is reduced.
The quick connector (the female quick connector 5 and the male quick connector 50) has the following functions: connecting with an interface corresponding to the EVAP system;
function of nylon tube 3: a passage for a test gas;
function of the on-off valve 4: controlling the opening and closing of the nylon tube 3;
the pneumatic quick coupling 10 functions as follows: the interface of the detection device and the nylon tube;
one end of the quick connector is connected with an interface corresponding to the EVAP system, the other end of the quick connector is connected with one end of the nylon tube 3, the switch valve 4 is installed on the nylon tube 3, the other end of the nylon tube 3 is connected with the pneumatic quick connector 10, and the pneumatic quick connector 10 is connected with the detection device.
The utility model discloses a both ends are quick connector (one end is female first 5 of quick connector, the public first 50 other ends of quick connector is pneumatic quick-operation joint 10), the middle pipeline that has set up ooff valve 4, provide a pipeline of conveniently connecting for detection device and the EVAP system of the vehicle under test, and opening of pipeline closes controllably.
If a plurality of quick-plug connectors are connected with different interfaces corresponding to the detection device and the EVAP system through the multi-way valve 2, the test air pressure can be conveniently input from one or more required ports, and other ports are closed.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a test of EVAP system with ooff valve is with vent line structure, includes input air supply pipe (1), its characterized in that, input air supply pipe (1) is through pneumatic quick-operation joint (10) external detection device, input air supply pipe (1) is connected with nylon pipe (3) through multi-ported valve (2), the mid-mounting of nylon pipe (3) has ooff valve (4), the quick connector is installed to the gas outlet department of nylon pipe (3), quick connector includes female first (5) of quick connector and public first (50) of quick connector, nylon pipe (3) are through the interface connection of quick connector with the EVAP system.
2. The ventilation pipeline structure with the switch valve for the EVAP system test of claim 1, wherein the multi-way valve (2) installed on the input air source pipe (1) is a four-way valve, the four-way valve is simultaneously connected with three nylon pipes (3), a female quick-plug connector (5) is installed at an air outlet of one nylon pipe (3), and male quick-plug connector (50) is installed at air outlets of the other two nylon pipes (3).
3. The vent line structure with the switch valve for the EVAP system test according to claim 1, wherein the switch valve (4) is an electromagnetic switch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021107336.5U CN212318183U (en) | 2020-06-15 | 2020-06-15 | Ventilation pipeline structure with switch valve for EVAP system test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021107336.5U CN212318183U (en) | 2020-06-15 | 2020-06-15 | Ventilation pipeline structure with switch valve for EVAP system test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212318183U true CN212318183U (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021107336.5U Active CN212318183U (en) | 2020-06-15 | 2020-06-15 | Ventilation pipeline structure with switch valve for EVAP system test |
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| CN (1) | CN212318183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865794A (en) * | 2021-09-02 | 2021-12-31 | 江苏雄越石油机械设备制造有限公司 | High-pressure valve for fracturing wellhead device and performance testing device thereof |
| CN113865794B (en) * | 2021-09-02 | 2024-05-31 | 江苏雄越石油机械设备制造有限公司 | High-pressure valve for fracturing wellhead device and performance testing device thereof |
-
2020
- 2020-06-15 CN CN202021107336.5U patent/CN212318183U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865794A (en) * | 2021-09-02 | 2021-12-31 | 江苏雄越石油机械设备制造有限公司 | High-pressure valve for fracturing wellhead device and performance testing device thereof |
| CN113865794B (en) * | 2021-09-02 | 2024-05-31 | 江苏雄越石油机械设备制造有限公司 | High-pressure valve for fracturing wellhead device and performance testing device thereof |
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