CN214368078U - Direct-acting electromagnetic valve core - Google Patents
Direct-acting electromagnetic valve core Download PDFInfo
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- CN214368078U CN214368078U CN202120274394.5U CN202120274394U CN214368078U CN 214368078 U CN214368078 U CN 214368078U CN 202120274394 U CN202120274394 U CN 202120274394U CN 214368078 U CN214368078 U CN 214368078U
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- shell
- lower movable
- movable valve
- gasket
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Abstract
The utility model discloses a direct-acting electromagnetic valve core, wherein a shell comprises an upper shell and a lower shell; the valve core comprises an upper fixed valve core and a lower movable valve core, and the upper fixed valve core extends into the upper shell and is fixedly connected with the upper shell; the top of the lower movable valve core is provided with a spring groove, a spring is arranged in the spring groove, and the spring is upwards matched with the upper fixed valve core in a jacking manner; an oil inlet cavity is arranged in the valve seat, an oil inlet hole is formed in the side wall of the middle of the lower shell, a tetrafluoro gasket is arranged in the lower shell below the lower movable valve element, and an oil outlet cavity is formed in the lower shell below the tetrafluoro gasket; the PTFE gasket is provided with an opening; when the lower movable valve core is positioned at the valve opening height, the lower movable valve core upwards leaves the tetrafluoro gasket, and when the lower movable valve core is positioned at the valve closing height, the lower movable valve core downwards compresses the tetrafluoro gasket and seals an opening on the tetrafluoro gasket; the utility model discloses abandoned the sealed mode of two rigid material lines, the line is sealed to become face seal, has reduced the processing degree of difficulty and has improved the product leakproofness, has improved the qualification rate of product, can adapt to natural wear for a long time, has prolonged the life of product.
Description
Technical Field
The utility model relates to a solenoid valve technical field, concretely relates to case of stop valve solenoid valve.
Background
With the implementation of national environmental protection policy, the requirement of tail gas treatment is stricter and stricter according to the national six standards, the HC injection system can assist aftertreatment to carry out tail gas treatment, and the stop valve is equivalent to a switch valve of an oil way in the HC injection system and plays a role in supplying oil. The solenoid valve core shell at the present stage is of an integrated structure, so that the processing difficulty is large, the processing cost is high, the valve rod assembly and the lower shell are in linear contact sealing, a guide column needs to be added, the durability is low, the structure is complex, and the processing difficulty is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, the durability is good, the direct-acting solenoid valve core of easily processing.
In order to achieve the purpose, the utility model discloses a direct-acting electromagnetic valve element, which comprises a shell arranged on a valve seat, wherein the valve element is arranged in the shell, the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are in sealed butt joint; the valve core comprises an upper fixed valve core and a lower movable valve core, and the upper fixed valve core extends into the upper shell and is fixedly connected with the upper shell;
the upper part of the lower movable valve core is positioned in the upper shell, and the lower part of the lower movable valve core is positioned in the lower shell;
the top of the lower movable valve core is provided with a spring groove, a spring is arranged in the spring groove, and the spring is upwards matched with the upper fixed valve core in a jacking manner;
an oil inlet cavity communicated with an oil inlet of the valve seat is arranged in the valve seat, an oil inlet hole communicated with the oil inlet cavity is arranged on the side wall of the middle part of the lower shell,
a tetrafluoro gasket is arranged in the lower shell below the lower movable valve core, and an oil outlet cavity communicated with an oil outlet of the valve seat is arranged in the lower shell below the tetrafluoro gasket; the tetrafluoro gasket is provided with an opening communicated with the oil outlet cavity;
the lower movable valve core is provided with a valve opening height and a valve closing height, the lower movable valve core is upwards away from the tetrafluoro gasket when positioned at the valve opening height, and the lower movable valve core downwards compresses the tetrafluoro gasket and seals an opening on the tetrafluoro gasket when positioned at the valve closing height;
the height of the oil inlet hole corresponds to the bottom of the upper fixed valve core below the valve closing height.
The upper shell and the lower shell are hermetically butted together in any one of the following two ways:
the first mode is that the two are inserted together in an interference fit mode;
the second way is to screw together.
The upper fixed valve core is in threaded connection with the upper shell, an upper annular groove is formed in the upper fixed valve core, an upper sealing ring is arranged in the upper annular groove, and the upper sealing ring is in sealing pressure connection with the inner wall of the upper shell; the bottom of the lower shell is provided with a lower annular groove, a lower sealing ring is arranged in the lower annular groove, and the lower sealing ring is in sealing fit with the valve seat.
The bottom end of the lower movable valve core is embedded with a metal ball, the metal ball upwards leaves the PTFE gasket when the lower movable valve core is positioned at the valve opening height, and the PTFE gasket is downwards compressed through the metal ball and seals an opening on the PTFE gasket when the lower movable valve core is positioned at the valve closing height.
An oil outlet cavity in the lower shell is connected with an oil pressure sensor.
The utility model discloses have following advantage:
the utility model discloses the part of well control oil circuit break-make is movable valve core (the metal ball of lower extreme) and tetrafluoro seat down, the sealed mode of two rigid material lines has been abandoned, adopt tetrafluoro gasket of casing riveting to carry out sealed cooperation under, sealed area of contact has been increased like this, become rigid material and soft material's face seal, the processing technology degree of difficulty has been reduced and the product leakproofness has been improved, the qualification rate of product has not only been improved, also can adapt to natural wear for a long time because of the sealed mode of soft material crimping, the service life of product has been prolonged. The shell is divided into an upper section and a lower section, so that the installation is convenient.
Go up and decide between case and the last casing through two kinds of structures of screw-thread fit and upper seal circle, improve the sealed qualification rate between the two greatly.
When the lower movable valve core and the metal ball upwards leave the tetrafluoro gasket, the oil inlet of the valve seat is communicated with the oil outlet of the valve seat through the oil inlet cavity, the oil inlet hole, the gap between the lower movable valve core and the tetrafluoro gasket, the opening in the tetrafluoro gasket and the oil outlet cavity. When the lower moving valve core and the metal ball downwards press the PTFE gasket, the oil way is cut off by sealing the opening on the PTFE gasket. When in use, a signal wire of the oil pressure sensor is connected with the vehicle-mounted ECU through a vehicle-mounted circuit to provide an oil pressure signal for the vehicle-mounted ECU.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the utility model provides a direct-acting electromagnetic valve core, which comprises a shell installed on a valve seat 1, wherein a valve core is arranged in the shell, the shell comprises an upper shell 2 and a lower shell 3, and the upper shell 2 and the lower shell 3 are in sealed butt joint; the valve core comprises an upper fixed valve core 4 and a lower movable valve core 5, and the upper fixed valve core 4 extends into the upper shell 2 and is fixedly connected with the upper shell 2;
the upper part of the lower movable valve core 5 is positioned in the upper shell 2, and the lower part of the lower movable valve core 5 is positioned in the lower shell 3; the lower moving valve core 5 is in sliding fit with the upper shell 2 and the lower shell 3.
The top of the lower movable valve core 5 is provided with a spring groove 6, a spring 7 is arranged in the spring groove 6, and the spring 7 is upwards matched with the upper fixed valve core 4 in a jacking manner;
an oil inlet cavity 8 communicated with an oil inlet of the valve seat 1 is arranged in the valve seat 1, an oil inlet hole 9 communicated with the oil inlet cavity 8 is arranged on the side wall of the middle part of the lower shell 3,
a tetrafluoro gasket 10 is riveted in the lower shell 3 below the lower movable valve core 5, and an oil outlet cavity 11 communicated with an oil outlet of the valve seat 1 is arranged in the lower shell 3 below the tetrafluoro gasket 10; the tetrafluoro gasket 10 is provided with an opening 12 communicated with the oil outlet cavity 11;
the lower movable valve core 5 has a valve opening height and a valve closing height, the lower movable valve core 5 is upwards away from the tetrafluoro gasket 10 when being positioned at the valve opening height, and the lower movable valve core 5 is downwards pressed against the tetrafluoro gasket 10 and seals an opening 12 on the tetrafluoro gasket 10 when being positioned at the valve closing height;
the height of the oil inlet hole 9 corresponds to the bottom of the upper fixed valve core 4 below the valve closing height, and a gap is formed between the oil inlet hole 9 and the upper fixed valve core 4.
The valve seat 1 of any solenoid valve is provided with an oil inlet and an oil outlet, and the oil inlet and the oil outlet of the valve seat are not shown in the figure.
The utility model discloses the part of well control oil circuit break-make is movable valve core 5 (the metal ball of lower extreme) and tetrafluoro seat down, two rigid material line sealing's mode has been abandoned, adopt tetrafluoro gasket 10 of 3 riveting of casing under to seal up the cooperation, sealed area of contact has been increased like this, become rigid material and soft material's face sealed, the processing technology degree of difficulty has been reduced and the product leakproofness has been improved, the qualification rate of product has not only been improved, also can adapt to natural wear for a long time because of the sealed mode of soft material crimping, the service life of product has been prolonged. The shell is divided into an upper section and a lower section, so that the installation is convenient.
The upper case 2 and the lower case 3 are sealingly butted together by either of the following two means:
the first mode is that the two are inserted together in an interference fit mode;
the second way is to screw together.
The upper fixed valve core 4 is in threaded connection with the upper shell 2, an upper annular groove is formed in the upper fixed valve core 4, an upper sealing ring 13 is arranged in the upper annular groove, and the upper sealing ring 13 is in sealing pressure connection with the inner wall of the upper shell 2; the bottom of lower casing 3 is equipped with down the annular groove, is equipped with lower sealing washer 14 in the annular groove down, and lower sealing washer 14 and disk seat 1 are sealed to be cooperated.
Go up and decide two kinds of structures of screw-thread fit and upper seal ring 13 between case 4 and the last casing 2, improve the sealed qualification rate between the two greatly.
The bottom end of the lower movable valve core 5 is embedded with a metal ball 15, the metal ball 15 leaves the tetrafluoro gasket 10 upwards when the lower movable valve core 5 is positioned at the valve opening height, and the metal ball 15 presses the tetrafluoro gasket 10 downwards and seals an opening 12 on the tetrafluoro gasket 10 when the lower movable valve core 5 is positioned at the valve closing height.
An oil pressure sensor 16 is connected to the oil outlet chamber 11 in the lower case 3. When in use, a signal line of the oil pressure sensor 16 is connected to the vehicle-mounted ECU through a vehicle-mounted circuit to provide an oil pressure signal to the vehicle-mounted ECU.
When in use, the utility model discloses the assembly is in disk seat 1 and install on the motor vehicle, external magnetic means like the electro-magnet.
When the valve is opened, under the action of the magnetic force of the external magnetic device, the lower movable valve core 5 overcomes the elastic force of the spring 7 to move upwards, so that the lower movable valve core 5 and the metal ball 15 leave the tetrafluoro gasket 10 upwards, at the moment, the oil inlet of the valve seat 1 is communicated with the oil outlet of the valve seat 1 through the oil inlet cavity 8, the oil inlet hole 9, the gap between the lower movable valve core 5 and the tetrafluoro gasket 10, the opening 12 on the tetrafluoro gasket 10 and the oil outlet cavity 11, and the oil path is communicated.
When the valve is closed, the magnetic force of the external magnetic device disappears, the lower moving valve core 5 and the metal ball 15 press the PTFE gasket 10 downwards under the action of the elastic force of the spring 7, and the oil path is cut off by closing the opening 12 on the PTFE gasket 10, so that the valve is closed.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (5)
1. The utility model provides a direct-acting solenoid valve core, is equipped with case, its characterized in that including installing the casing on the disk seat in the casing: the shell comprises an upper shell and a lower shell which are in sealed butt joint; the valve core comprises an upper fixed valve core and a lower movable valve core, and the upper fixed valve core extends into the upper shell and is fixedly connected with the upper shell;
the upper part of the lower movable valve core is positioned in the upper shell, and the lower part of the lower movable valve core is positioned in the lower shell;
the top of the lower movable valve core is provided with a spring groove, a spring is arranged in the spring groove, and the spring is upwards matched with the upper fixed valve core in a jacking manner;
an oil inlet cavity communicated with an oil inlet of the valve seat is arranged in the valve seat, an oil inlet hole communicated with the oil inlet cavity is arranged on the side wall of the middle part of the lower shell,
a tetrafluoro gasket is arranged in the lower shell below the lower movable valve core, and an oil outlet cavity communicated with an oil outlet of the valve seat is arranged in the lower shell below the tetrafluoro gasket; the tetrafluoro gasket is provided with an opening communicated with the oil outlet cavity;
the lower movable valve core is provided with a valve opening height and a valve closing height, the lower movable valve core is upwards away from the tetrafluoro gasket when positioned at the valve opening height, and the lower movable valve core downwards compresses the tetrafluoro gasket and seals an opening on the tetrafluoro gasket when positioned at the valve closing height;
the height of the oil inlet hole corresponds to the bottom of the upper fixed valve core below the valve closing height.
2. A direct acting solenoid valve cartridge according to claim 1, wherein: the upper shell and the lower shell are hermetically butted together in any one of the following two ways:
the first mode is that the two are inserted together in an interference fit mode;
the second way is to screw together.
3. A direct acting solenoid valve cartridge according to claim 1, wherein: the upper fixed valve core is in threaded connection with the upper shell, an upper annular groove is formed in the upper fixed valve core, an upper sealing ring is arranged in the upper annular groove, and the upper sealing ring is in sealing pressure connection with the inner wall of the upper shell; the bottom of the lower shell is provided with a lower annular groove, a lower sealing ring is arranged in the lower annular groove, and the lower sealing ring is in sealing fit with the valve seat.
4. A direct acting solenoid valve cartridge according to any one of claims 1 to 3, wherein: the bottom end of the lower movable valve core is embedded with a metal ball, the metal ball upwards leaves the PTFE gasket when the lower movable valve core is positioned at the valve opening height, and the PTFE gasket is downwards compressed through the metal ball and seals an opening on the PTFE gasket when the lower movable valve core is positioned at the valve closing height.
5. A direct acting solenoid valve cartridge according to any one of claims 1 to 3, wherein: an oil outlet cavity in the lower shell is connected with an oil pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120274394.5U CN214368078U (en) | 2021-02-01 | 2021-02-01 | Direct-acting electromagnetic valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120274394.5U CN214368078U (en) | 2021-02-01 | 2021-02-01 | Direct-acting electromagnetic valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214368078U true CN214368078U (en) | 2021-10-08 |
Family
ID=77962076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120274394.5U Active CN214368078U (en) | 2021-02-01 | 2021-02-01 | Direct-acting electromagnetic valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214368078U (en) |
-
2021
- 2021-02-01 CN CN202120274394.5U patent/CN214368078U/en active Active
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