CN217463260U - Integrated carbon tank stop valve - Google Patents
Integrated carbon tank stop valve Download PDFInfo
- Publication number
- CN217463260U CN217463260U CN202120071654.9U CN202120071654U CN217463260U CN 217463260 U CN217463260 U CN 217463260U CN 202120071654 U CN202120071654 U CN 202120071654U CN 217463260 U CN217463260 U CN 217463260U
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- valve core
- movable valve
- valve
- air inlet
- guide shaft
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Abstract
An integrated carbon tank stop valve comprises a valve body, wherein the valve body is provided with an air inlet connector and an air outlet connector, a communication section for communicating the air inlet connector and the air outlet connector is arranged between the air inlet connector and the air outlet connector, and the air inlet connector is connected with an auxiliary air filtering device; the valve body is also internally provided with a solenoid valve device which comprises a static valve core, a movable valve core positioned above the static valve core and a return spring for resetting the movable valve core, wherein the movable valve core is connected with a guide shaft, the guide shaft downwards penetrates through the static valve core and then is connected with a sealing element, and the sealing element is positioned below the coil rack. The utility model discloses a reset spring is located between quiet case and the movable valve core, can not produce harmful effects to the sealed of sealing member, and reset spring's the stroke that resets is short, and is more smooth and easy when the operation.
Description
Technical Field
The utility model relates to an integrated form carbon tank stop valve.
Background
The Chinese utility model patent with the publication number of CN208793634U discloses an integrated carbon tank stop valve for an automobile fuel evaporative emission system, which comprises a valve body, wherein the valve body is provided with an air inlet joint and an air outlet joint, a communicating section for communicating the air inlet joint and the air outlet joint is arranged between the air inlet joint and the air outlet joint, and the air inlet joint is connected with an auxiliary air filtering device; still be equipped with in the valve body and be used for locating UNICOM's section top, be used for opening or confined solenoid valve device with the UNICOM section, this solenoid valve device includes the coil former, around being equipped with the coil on the coil former, be equipped with quiet case in the coil former, be located the movable valve core of quiet case top, be used for the reset spring that the movable valve core resets, the movable valve core is connected with the guide shaft, the guide shaft passes behind the quiet case downwards and is connected with the sealing member, this sealing member is located the below of coil former, and reset spring is located the below of sealing member again, the top is on this sealing member. After the coil is electrified, the movable valve core moves downwards under the action of electromagnetic force, and then the communicating section is sealed by a sealing piece;
the integrated canister shutoff valve of the prior art also has the disadvantages of: because the return spring is arranged below the sealing element, the return spring returns to the sealing element to generate reaction force in the sealing process after the movable valve core moves downwards, and the sealing effect of the sealing element is weakened. Meanwhile, the return spring is positioned in a wide space below the sealing element, and the length of the return spring is long, so that the movable valve core is difficult to accurately axially return.
Disclosure of Invention
In order to overcome the above-mentioned not enough of current integrated form carbon tank stop valve, the utility model provides a sealed effect is better, the more smooth and easy integrated form carbon tank stop valve of operation.
The technical proposal of the utility model for solving the technical problem is that: an integrated carbon tank stop valve comprises a valve body, wherein the valve body is provided with an air inlet connector and an air outlet connector, a communication section for communicating the air inlet connector and the air outlet connector is arranged between the air inlet connector and the air outlet connector, and the air inlet connector is connected with an auxiliary air filtering device;
the valve body is also internally provided with an electromagnetic valve device which is arranged above the communicating section and used for opening or closing the communicating section;
the electromagnetic valve device comprises a coil frame, a coil is wound on the coil frame, a static valve core, a movable valve core and a return spring are arranged in the coil frame, the movable valve core is positioned above the static valve core, the return spring is used for returning the movable valve core, the movable valve core is connected with a guide shaft, the guide shaft downwards penetrates through the static valve core and then is connected with a sealing element, the sealing element is positioned below the coil frame, the communication section is sealed by the sealing element after the movable valve core descends under the action of electromagnetic force after the coil is electrified, and the movable valve core returns under the action of the return spring after the coil is powered off so as to open the communication section;
the reset spring is positioned between the static valve core and the movable valve core, the lower end of the reset spring is propped against the static valve core, and the upper end of the reset spring is propped against the movable valve core.
Further, the sealing element is a sealing gasket.
Further, the lower end of the guide shaft is provided with a sealing gasket support, and the sealing gasket is arranged on the sealing gasket support.
Furthermore, the sealing gasket support comprises a sleeve and an interlayer extending outwards from the sleeve, and the sealing gasket is clamped in the interlayer; after the sleeve is sleeved at the lower end of the guide shaft, the sleeve is connected with the guide shaft through a clamp spring.
Furthermore, a pressure spring for pressing the movable valve core downwards is arranged at the top end of the movable valve core, and the downward pressing force of the pressure spring is smaller than the upward pushing force of the return spring.
Further, the air outlet joint is positioned above the air inlet joint.
Further, the upper end of UNICOM section is equipped with the ladder mouth, the sealing member can seal this ladder mouth after descending.
Furthermore, the movable valve core and the guide shaft are separated, and the guide shaft is inserted into the movable valve core and then fixed with the movable valve core.
Furthermore, the tail end of the air inlet joint is provided with a reinforcing plate, and the reinforcing plate is tightly attached to the auxiliary air filtering device.
Furthermore, a reinforcing rib is arranged between the reinforcing plate and the valve body.
The beneficial effects of the utility model reside in that: the reset spring is positioned between the static valve core and the dynamic valve core, so that the sealing of the sealing element cannot be adversely affected, the reset stroke of the reset spring is short, and the operation is smoother.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic structural view of the valve body.
Fig. 4 is a schematic view of another angle of the valve body.
Fig. 5 is a cross-sectional view of the valve body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, 2, 3, 4 and 5, the integrated canister stop valve comprises a valve body 1, wherein the valve body 1 is provided with an air inlet connector 2 and an air outlet connector 3, and the air outlet connector 3 is positioned above the air inlet connector 2. A communication section 5 for communicating the air inlet connector 2 and the air outlet connector 3 is arranged between the air inlet connector 2 and the air outlet connector 3, and the air inlet connector 2 is connected with an auxiliary air filtering device 4. In this embodiment the end of the air inlet connector 2 is provided with the reinforcing plate 17, and after the air inlet connector 2 is inserted into the auxiliary air filtering device 4, the reinforcing plate 17 is tightly attached to the auxiliary air filtering device 4, so as to further stabilize the positioning and reinforcing functions. In this embodiment, a reinforcing rib is provided between the reinforcing plate 17 and the valve body 1, thereby further reinforcing the strength of the intake connector 2.
The valve body is also internally provided with an electromagnetic valve device which is arranged above the communicating section 5 and used for opening or closing the communicating section 5.
The electromagnetic valve device comprises a coil frame 6, a coil 7 is wound on the coil frame 6, a static valve core 8, a movable valve core 9 positioned above the static valve core 8 and a return spring 10 for returning the movable valve core 9 are arranged in the coil frame, the return spring 10 is positioned between the static valve core 8 and the movable valve core 9, the lower end of the return spring 10 is propped against the static valve core 8, and the upper end of the return spring 10 is propped against the movable valve core 9.
The movable valve core 9 is connected with the guide shaft 11, the guide shaft 11 downwards penetrates through the static valve core 8 and then is connected with a sealing element, the sealing element is located below the coil rack 6, the coil is electrified, the movable valve core moves downwards under the action of electromagnetic force, the sealing element is used for sealing the communicating section 5, a step opening 12 is formed in the upper end of the communicating section 5 in the embodiment, and the sealing element can be used for sealing the step opening 12 after moving downwards. After the coil is powered off, the movable valve core 9 is reset under the action of the reset spring 10 so as to open the communication section 5.
In this embodiment, the movable valve element 9 and the guide shaft 11 are separate bodies, and the guide shaft 11 is inserted into the movable valve element 9 and then fixed to each other. The reason for this is that the length of the whole assembly of the movable valve core and the guide shaft is very long, and the movable valve core and the guide shaft are both made of metal, so that it is troublesome to form the special-shaped metal part with such a length, and the cost is high, so that the movable valve core 9 and the guide shaft 11 are separated, and then the two are fixed, and the fixing mode can be a laser welding mode and the like.
In this embodiment, the sealing element is a sealing gasket 13, and the specific installation manner of the sealing gasket 13 is as follows: the lower end of the guide shaft 11 is provided with a sealing pad support 14, and the sealing pad 13 is arranged on the sealing pad support 14. The sealing gasket support 14 comprises a sleeve and an interlayer extending outwards from the sleeve, and the sealing gasket 13 is clamped in the interlayer; after the sleeve is sleeved at the lower end of the guide shaft 11, the sleeve is connected with the guide shaft through a clamp spring 15.
In this embodiment, a pressure spring 16 for pressing down the movable valve element 9 is disposed at the top end of the movable valve element, a downward pressing force of the pressure spring 16 is smaller than an upward pushing force of the return spring 10, and the pressure spring 16 is generally disposed between the movable valve element 9 and the valve body. The pressure spring 16 makes the movable valve element 9 receive a downward pressure, so that when the electromagnetic valve device is started, only a good voltage is needed to realize downward movement of the movable valve element 9.
Claims (10)
1. An integrated carbon tank stop valve comprises a valve body, wherein the valve body is provided with an air inlet connector and an air outlet connector, a communication section for communicating the air inlet connector and the air outlet connector is arranged between the air inlet connector and the air outlet connector, and the air inlet connector is connected with an auxiliary air filtering device;
the valve body is also internally provided with an electromagnetic valve device which is arranged above the communicating section and used for opening or closing the communicating section;
the electromagnetic valve device comprises a coil frame, a coil is wound on the coil frame, a static valve core, a movable valve core and a return spring are arranged in the coil frame, the movable valve core is positioned above the static valve core, the return spring is used for returning the movable valve core, the movable valve core is connected with a guide shaft, the guide shaft downwards penetrates through the static valve core and then is connected with a sealing element, the sealing element is positioned below the coil frame, the communication section is sealed by the sealing element after the movable valve core descends under the action of electromagnetic force after the coil is electrified, and the movable valve core returns under the action of the return spring after the coil is powered off so as to open the communication section;
the method is characterized in that: the reset spring is positioned between the static valve core and the movable valve core, the lower end of the reset spring is propped against the static valve core, and the upper end of the reset spring is propped against the movable valve core.
2. An integrated canister shut-off valve as in claim 1 wherein: the sealing element is a sealing gasket.
3. An integrated canister shut-off valve as in claim 2 wherein: the lower end of the guide shaft is provided with a sealing gasket support, and the sealing gasket is arranged on the sealing gasket support.
4. An integrated canister shut-off valve as in claim 3 wherein: the sealing gasket support comprises a sleeve and an interlayer extending outwards from the sleeve, and the sealing gasket is clamped in the interlayer;
after the sleeve is sleeved at the lower end of the guide shaft, the sleeve is connected with the guide shaft through a clamp spring.
5. An integrated canister shut-off valve as claimed in any one of claims 1 to 4 wherein: and a pressure spring for pressing the movable valve core downwards is arranged at the top end of the movable valve core, and the downward pressing force of the pressure spring is smaller than the upward pushing force of the return spring.
6. An integrated canister shut-off valve as claimed in any one of claims 1 to 4 wherein: the air outlet joint is positioned above the air inlet joint.
7. An integrated canister shut-off valve as in claim 6 wherein: the upper end of UNICOM section is equipped with the ladder mouth, the sealing member can seal this ladder mouth after descending.
8. An integrated canister shut-off valve as claimed in any one of claims 1 to 4 wherein: the movable valve core and the guide shaft are separated, and the guide shaft is inserted into the movable valve core and then fixed with the movable valve core.
9. An integrated canister shut-off valve as defined in any one of claims 1 to 4 wherein: and the tail end of the air inlet joint is provided with a reinforcing plate, and the reinforcing plate is tightly attached to the auxiliary air filtering device.
10. An integrated canister shut-off valve as in claim 9 wherein: and reinforcing ribs are arranged between the reinforcing plate and the valve body.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202022630222 | 2020-11-14 | ||
CN2020226302225 | 2020-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN217463260U true CN217463260U (en) | 2022-09-20 |
Family
ID=83233975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202120071654.9U Active CN217463260U (en) | 2020-11-14 | 2021-01-12 | Integrated carbon tank stop valve |
Country Status (1)
Country | Link |
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CN (1) | CN217463260U (en) |
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2021
- 2021-01-12 CN CN202120071654.9U patent/CN217463260U/en active Active
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