CN215487923U - Oil inlet valve capable of improving sealing performance - Google Patents
Oil inlet valve capable of improving sealing performance Download PDFInfo
- Publication number
- CN215487923U CN215487923U CN202022346791.7U CN202022346791U CN215487923U CN 215487923 U CN215487923 U CN 215487923U CN 202022346791 U CN202022346791 U CN 202022346791U CN 215487923 U CN215487923 U CN 215487923U
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- valve
- iron core
- outer shell
- oil inlet
- movable iron
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Abstract
An oil inlet valve for improving sealing performance comprises a valve seat and a valve outer shell which are clamped and sealed with each other, wherein an oil inlet is formed in the middle position of the bottom surface of the valve seat, an oil outlet communicated with the oil inlet is formed in the periphery of the bottom end of the valve seat, a movable iron core for opening and closing the oil inlet is movably mounted in the valve outer shell, an electromagnetic coil for controlling the movable iron core to move is arranged in the valve outer shell, the electromagnetic coil is electrically connected with an external power supply, a protective cap is arranged at the top of the valve outer shell, and a riveting portion is arranged at the connecting position of the valve outer shell and the protective cap; the riveting portion is arranged at the joint of the valve outer shell and the protective cap, and the riveting gap generated at the joint of the riveting portion and the protective cap is filled with the sealant, so that gas in the inner cavity gap formed between the solenoid coil and the valve outer shell can be prevented from being discharged from the riveting gap at the tail end of the valve outer shell, and the sealing performance of the oil inlet valve is improved.
Description
Technical Field
The utility model relates to the field of automobile parts, in particular to an oil inlet valve for improving the sealing property.
Background
The fuel inlet valve is a switch valve for supplying fuel to a low-pressure area at the front end of a high-pressure pump in a diesel engine fuel system. It should open or close the supply condition of low pressure oil according to the working condition of the diesel engine. Due to the working characteristics of the electromagnetic coil, the electromagnetic coil is basically in a normally-on state when the engine acts, the coil generates heat under the action of current, so that the original air remained in the valve body expands, and the air can be discharged through the riveting clearance at the tail end of the valve body.
SUMMERY OF THE UTILITY MODEL
[ problem ] to
The coil generates heat under the action of current, so that the original air remained in the valve body expands, and the air can be discharged through the riveting gap at the tail end of the valve body.
[ solution ]
An oil inlet valve for improving sealing performance comprises a valve seat and a valve shell, wherein the valve seat and the valve shell are clamped and sealed with each other, an oil inlet is formed in the middle position of the bottom surface of the valve seat, an oil outlet communicated with the oil inlet is formed in the periphery of the bottom end of the valve seat, a movable iron core for opening and closing the oil inlet is movably mounted in the valve shell, an electromagnetic coil for controlling the movement of the movable iron core is arranged in the valve shell, the electromagnetic coil is electrically connected with an external power supply, a protective cap is arranged at the top of the valve shell, a riveting part is arranged at the joint of the valve shell and the protective cap, the protective cap is fixedly connected with the valve shell through the riveting part, a wiring screw is fixedly arranged at the middle position of the protective cap, an inner cavity gap is formed between the electromagnetic coil and the valve shell, and a riveting gap is formed between the riveting part and the protective cap, and the riveting clearance is filled with sealant so as to keep the sealing state between the valve outer shell and the protective cap.
Preferably, a magnetism isolating pipe is arranged between the electromagnetic solenoid and the movable iron core, the magnetism isolating pipe is fixedly connected with the valve outer shell, and the movable iron core slides on the inner side of the magnetism isolating pipe.
Preferably, a static iron core is arranged at the top of the inner side of the magnetism isolating pipe and fixedly connected with the magnetism isolating pipe.
Preferably, the top of moving the iron core has seted up the spring chamber, install the spring in the spring chamber, move the iron core with pass through between the quiet iron core spring elastic connection.
Preferably, the bottom of the movable iron core is provided with a sealing plug head, and the sealing plug head is fixedly connected with the movable iron core.
[ advantageous effects ]
According to the utility model, the riveting part is arranged at the joint of the valve outer shell and the protective cap, and the riveting gap generated at the joint of the riveting part and the protective cap is filled with the sealant, so that gas in the inner cavity gap formed between the solenoid coil and the valve outer shell can be prevented from being discharged from the riveting gap at the tail end of the valve outer shell, and the sealing property of the oil inlet valve is improved.
Drawings
FIG. 1 is a schematic structural view showing an open state of an oil feed valve.
FIG. 2 is a schematic structural view showing a closed state of the oil feed valve.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
In the figure: 1. a valve seat; 101. an oil inlet; 102. an oil outlet; 2. a valve outer housing; 201. an inner cavity gap; 202. riveting the gap; 21. riveting and pressing part; 3. an electromagnetic coil; 4. a stationary iron core; 5. a movable iron core; 501. a spring cavity; 51. a spring; 52. sealing the plug head; 6. a magnetism isolating pipe; 7. a protective cap; 8. a binding screw; 9. and (7) sealing the glue.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
The embodiment provides an oil inlet valve for improving sealing performance, which comprises a valve seat 1 and a valve outer shell 2 which are clamped and sealed with each other, wherein an oil inlet 101 is formed in the middle position of the bottom surface of the valve seat 1, an oil outlet 102 communicated with the oil inlet 101 is formed in the periphery of the bottom end of the valve seat 1, a movable iron core 5 for opening and closing the oil inlet 101 is movably installed in the valve outer shell 2, an electromagnetic coil 3 for controlling the movement of the movable iron core 5 is arranged in the valve outer shell 2, the electromagnetic coil 3 is electrically connected with an external power supply, a protective cap 7 is arranged at the top of the valve outer shell 2, a riveting part 21 is arranged at the joint of the valve outer shell 2 and the protective cap 7, the protective cap 7 is fixedly connected with the valve outer shell 2 through the riveting part 21, a wiring screw 8 is fixedly arranged at the middle position of the protective cap 7, an inner cavity gap 201 is formed between the electromagnetic coil 3 and the valve outer shell 2, and a riveting gap 202 is formed between the riveting part 21 and the protective cap 7, the caulking gap 202 is filled with a sealant 9 to maintain a sealed state between the valve case body 2 and the cap 7.
In this embodiment, the rivet portion 21 is provided at the joint between the valve outer housing 2 and the protective cap 7, and the rivet gap 202 formed at the joint between the rivet portion 21 and the protective cap 7 is filled with the sealant 9, so that the gas inside the inner cavity gap 201 formed between the solenoid coil 3 and the valve outer housing 2 can be prevented from leaking out from the rivet gap 202 at the tail end of the valve outer housing 2, and the sealing performance of the oil inlet valve can be improved.
Specifically, be equipped with between solenoid 3 and the movable iron core 5 and separate magnetron 6, separate magnetron 6 and valve housing body 2 fixed connection, movable iron core 5 slides in the inboard of separating magnetron 6, through setting up separate magnetron 6, can carry on spacingly to the moving direction of inboard movable iron core 5 to can reduce the electromagnetic interference that movable iron core 5 received.
Specifically, the top of the inner side of the magnetism isolating pipe 6 is provided with the static iron core 4, the static iron core 4 is fixedly connected with the magnetism isolating pipe 6, and the static iron core 4 plays an upper limiting role in the moving position of the moving iron core 5 and can be matched with the spring 51.
Specifically, move the top of iron core 5 and seted up spring chamber 501, install spring 51 in spring chamber 501, move through spring 51 elastic connection between iron core 5 and the quiet iron core 4, through moving iron core 5 and setting up spring 51 between the quiet iron core 4, can make the inlet valve under the non-energized state, move iron core 5 and be located the bottommost by spring 51 effect down, with the shutoff of oil inlet 101, make the inlet valve be in the closed condition.
Specifically, the bottom of moving iron core 5 is equipped with sealed chock plug 52, and sealed chock plug 52 and moving iron core 5 fixed connection, through setting up sealed chock plug 52, when moving iron core 5 and being located the bottommost, sealed chock plug 52 takes place elastic deformation, can be inseparabler with the laminating of disk seat 1 inner wall, to the shutoff of oil inlet 101.
The working process of the utility model is as follows: the working principle of the oil inlet valve is that when the switch is switched on, the electromagnetic coil 3 is electrified to generate electromagnetic force, the movable iron core 5 in the valve overcomes the force of the spring 51 to move upwards under the action of the electromagnetic force to open the oil inlet 101 and supply oil to the high-pressure end front cavity, when the switch is switched off, the electromagnetic coil 3 is electrified, the movable iron core 5 in the valve moves downwards under the force of the spring 51, the oil inlet 101 is sealed, and the oil supply to the high-pressure end front cavity is stopped.
The scope of the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. that can be made by those skilled in the art within the spirit and principle of the inventive concept should be included in the scope of the present invention.
Claims (5)
1. The oil inlet valve for improving the sealing performance is characterized by comprising a valve seat (1) and a valve outer shell (2) which are clamped and sealed to be mounted, wherein an oil inlet (101) is formed in the middle position of the bottom surface of the valve seat (1), an oil outlet (102) communicated with the oil inlet (101) is formed in the peripheral side of the bottom end of the valve seat (1), a movable iron core (5) used for opening and closing the oil inlet (101) is movably mounted in the valve outer shell (2), an electromagnetic coil (3) used for controlling the movable iron core (5) to move is arranged in the valve outer shell (2), the electromagnetic coil (3) is electrically connected with an external power supply, a protective cap (7) is arranged at the top of the valve outer shell (2), a riveting portion (21) is arranged at the joint of the valve outer shell (2) and the protective cap (7), and the protective cap (7) and the valve outer shell (2) are fixedly connected through the riveting portion (21), the middle position department of helmet (7) sets firmly binding screw (8), inner chamber clearance (201) have between solenoid (3) and valve case body (2), riveting clearance (202) have between riveting portion (21) and helmet (7), riveting clearance (202) intussuseption is filled with sealed glue (9), so that keep encapsulated situation between valve case body (2) and helmet (7).
2. The fuel inlet valve for improving the sealing performance is characterized in that a magnetism isolating pipe (6) is arranged between the solenoid coil (3) and the movable iron core (5), the magnetism isolating pipe (6) is fixedly connected with the valve outer shell (2), and the movable iron core (5) slides on the inner side of the magnetism isolating pipe (6).
3. The fuel inlet valve for improving the sealing performance is characterized in that a static iron core (4) is arranged at the top of the inner side of the magnetism isolating pipe (6), and the static iron core (4) is fixedly connected with the magnetism isolating pipe (6).
4. The oil inlet valve for improving the sealing performance is characterized in that a spring cavity (501) is formed in the top of the movable iron core (5), a spring (51) is installed in the spring cavity (501), and the movable iron core (5) is elastically connected with the static iron core (4) through the spring (51).
5. The fuel inlet valve for improving the sealing performance is characterized in that a sealing plug head (52) is arranged at the bottom of the movable iron core (5), and the sealing plug head (52) is fixedly connected with the movable iron core (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022346791.7U CN215487923U (en) | 2020-10-20 | 2020-10-20 | Oil inlet valve capable of improving sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022346791.7U CN215487923U (en) | 2020-10-20 | 2020-10-20 | Oil inlet valve capable of improving sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487923U true CN215487923U (en) | 2022-01-11 |
Family
ID=79716574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022346791.7U Active CN215487923U (en) | 2020-10-20 | 2020-10-20 | Oil inlet valve capable of improving sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487923U (en) |
-
2020
- 2020-10-20 CN CN202022346791.7U patent/CN215487923U/en active Active
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