CN218377931U - Electromagnetic valve end cover sealing gasket and electromagnetic valve - Google Patents
Electromagnetic valve end cover sealing gasket and electromagnetic valve Download PDFInfo
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- CN218377931U CN218377931U CN202222776005.6U CN202222776005U CN218377931U CN 218377931 U CN218377931 U CN 218377931U CN 202222776005 U CN202222776005 U CN 202222776005U CN 218377931 U CN218377931 U CN 218377931U
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- end cover
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- air hole
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Abstract
The utility model relates to a solenoid valve technical field especially relates to a sealed pad of solenoid valve end cover, guide's gas circuit and solenoid valve, sealed pad includes: the area of the main body is larger than that of the piston cavity, the main body covers the piston cavity on the valve body, is arranged between the end cover and the piston cavity and seals the space between the end cover and the piston cavity; the extension end extends to the pilot air hole on the valve body to cover the pilot air hole; the main body and the extension end are provided with notches, the notches extend from the middle part of the main body to the middle part of the extension end, and the pilot air hole is communicated with the piston cavity through the notches. The utility model discloses in, can directly realize turning to of guide's gas circuit to need not in the gas process end cover of will leading, removed the operation of punching to the end cover from, also save simultaneously and use the plug to carry out the step of shutoff to the fabrication hole, make front end housing and rear end cap can be general, reduced the product seal point, reduce the risk point of revealing, the product structure is compacter, saves product installation usage space.
Description
Technical Field
The utility model relates to a solenoid valve technical field especially relates to a sealed pad of solenoid valve end cover and solenoid valve.
Background
The solenoid valve mostly adopts the valve body main bore and the valve rod cooperation, and the piston hole installation piston assembly that front and back end cover processing corresponds, need in addition to arrive front and back piston department again through the gas circuit structure that relates to on front and back end cover to the guide's gas that the solenoid valve body was come, promote the piston and realize the switching-over action of case.
In the prior art, pilot-operated solenoid valves are provided with pilot-operated gas channel pilot assemblies, and the pilot-operated gas channel is switched to push a control piston to act through the control of an electromagnetic coil. Therefore, piston holes need to be formed in the front end cover and the rear end cover of the electromagnetic valve, process holes have to be formed in the end covers due to the fact that the flow direction of pilot gas needs to be changed, plugs need to be used for plugging after the process holes are machined, certain pressure resistance and sealing performance need to be achieved in plugging, machining requirements for the process hole plugging holes are high, machining difficulty of the front end cover and the rear end cover of the electromagnetic valve is increased, the air path characteristics of the front end cover and the rear end cover are multiple, machining cost and material cost are high, the structure of the electromagnetic valve has the process plugging holes, and leakage risks of the electromagnetic valve are increased.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sealed pad of solenoid valve end cover and solenoid valve to effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a solenoid valve end cap gasket comprising:
the area of the main body is larger than that of the piston cavity, the main body covers the piston cavity on the valve body, is arranged between the end cover and the piston cavity and seals the end cover and the piston cavity;
the extension end extends to the pilot air hole on the valve body to cover the pilot air hole;
the main body and the extension end are provided with a notch, the notch extends from the middle of the main body to the middle of the extension end, and the notch communicates the pilot air hole with the piston cavity.
Further, the slot penetrates through the end cover sealing gasket along the thickness direction.
Furthermore, the number of the extending ends is two, the two extending ends are symmetrically arranged, the groove is formed in one of the extending ends, and the other extending end is provided with a hole.
A solenoid valve pilot gas circuit, comprising:
the air inlet is connected with an air source;
the first pilot gas path is arranged in the valve body, one end of the first pilot gas path is communicated with the gas inlet, and the other end of the first pilot gas path is communicated to the front end cover;
the second pilot gas path is arranged in the valve body, one end of the second pilot gas path is communicated with the gas inlet, and the other end of the second pilot gas path is communicated to the rear end cover;
the two slots are respectively arranged on the front end cover sealing gasket and the rear end cover sealing gasket, one slot is used for communicating the first pilot gas path with the front piston cavity, and the other slot is used for communicating the second pilot gas path with the rear piston cavity;
and the control assembly controls the on-off of the first pilot gas circuit and/or the second pilot gas circuit.
Furthermore, the control assembly is arranged on the first pilot gas path and used for controlling the on-off of the first pilot gas path, and the area of the front piston cavity is larger than that of the rear piston cavity;
when the first pilot gas path is disconnected, firstly, gas is introduced from the gas inlet into the second pilot gas path, enters the rear piston cavity through the notch, and pushes the valve core to move in the direction far away from the rear end cover;
when the first pilot gas path is communicated, pilot gas simultaneously enters the first pilot gas path and the second pilot gas path from the gas inlet, respectively enters the front piston cavity and the rear piston cavity through the two slots, and the pressure of the front piston cavity is greater than that of the rear piston cavity, so that the valve core is pushed to move towards the direction far away from the front end cover.
Further, the control assembly includes:
the pilot seat is arranged on the first pilot gas path and/or the second pilot gas path;
the movable iron core is provided with a coil outside, and when the coil is electrified, the movable iron core moves towards the direction close to the static iron core;
the reset mechanism limits the movable iron core to move towards the direction close to the static iron core when the coil is not electrified;
when the coil is not electrified, the movable iron core plugs the first pilot gas circuit and/or the second pilot gas circuit.
Furthermore, the first pilot gas path and the second pilot gas path are symmetrically arranged at the communication part of the front end cover and the rear end cover.
A solenoid valve, comprising:
the valve comprises a valve body, wherein a slidable valve core is arranged in the valve body, switching action is realized when the valve core moves, a front cover piston and a rear cover piston are respectively arranged at two ends of the valve core, and a front piston cavity and a rear piston cavity are correspondingly arranged in the valve body;
the front end cover and the rear end cover are respectively arranged at the front piston cavity and the rear piston cavity of the valve body, and end cover sealing gaskets are arranged between the front end cover and the valve body and between the rear end cover and the valve body;
the pilot air hole is arranged on the valve body and comprises an air inlet, and two ends of the pilot air hole respectively extend to the front end cover and the rear end cover;
the end cover sealing gasket is provided with a slot which is communicated with the pilot air hole and the front piston cavity or the pilot air hole and the rear piston cavity;
and the control component is arranged at the pilot air hole and used for controlling the on-off of the pilot air hole.
Further, the control assembly is arranged between the pilot air hole and the front end cover, and the area of the front piston cavity is larger than that of the rear piston cavity;
when the control assembly is closed, firstly introducing gas from the gas inlet into the pilot gas hole, and then introducing the gas into the rear piston cavity through the notch in the rear end cover to push the valve core to move towards the direction far away from the rear end cover;
when the control assembly is opened, firstly air is introduced from the air inlet into the pilot air hole and respectively enters the front piston cavity and the rear piston cavity through the two slots, and at the moment, the pressure of the front piston cavity is greater than that of the rear piston cavity, so that the valve core is pushed to move towards the direction far away from the front end cover.
Furthermore, the pilot air holes extend to two ends of the front end cover and the rear end cover and are symmetrically arranged.
The utility model has the advantages that: the utility model discloses a set up the fluting on end cover seal stack, communicate the fluting with guide's gas pocket and piston chamber respectively, can directly realize turning to of guide's gas circuit, thereby need not to lead guide's gas in the end cover, the operation of punching to the end cover has been removed from, also save simultaneously and use the end cap to carry out the step of shutoff to the fabrication hole, make front end housing and rear end cap can be general, with the simple clamp plate installation locking of end cover can, machining process has been reduced, assembly process and shutoff process, improve product production efficiency, the cost is reduced, the product sealing point has been reduced, reduce the risk point of revealing, product structure is compacter, save product installation usage space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of an end cap gasket;
FIG. 2 is a front view of the pilot gas circuit;
FIG. 3 is a top view of the pilot gas path;
FIG. 4 is a schematic view of the control assembly broken away;
FIG. 5 is a schematic view of the control assembly opening;
FIG. 6 is a schematic diagram showing the movement direction of the pilot gas when the control assembly in the pilot gas path is disconnected;
FIG. 7 is a schematic diagram of the movement direction of the pilot gas when the control assembly in the pilot gas path is opened;
FIG. 8 is a schematic structural view of the solenoid valve;
fig. 9 is a plan view of the solenoid valve.
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 should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1: a solenoid valve end cap gasket 1 comprising:
the main body 11 covers the piston cavity on the valve body 31, is arranged between the end cover and the piston cavity, and seals the space between the end cover and the piston cavity, wherein the area of the main body 11 is larger than that of the piston cavity;
an extension end 12, wherein the extension end 12 extends to the pilot gas hole 34 on the valve body 31 to cover the pilot gas hole 34;
the main body 11 and the extension end 12 are provided with a slot 13, the slot 13 extends from the middle of the main body 11 to the middle of the extension end 12, and the slot 13 communicates the pilot air hole 34 with the piston cavity.
Through set up fluting 13 on end cover sealing gasket 1, communicate fluting 13 with guide's gas pocket 34 and piston chamber respectively, can directly realize turning to of guide's gas circuit, thereby need not in the end cover with guide's gas, the operation of punching to the end cover has been removed from, also save the step that uses the end plug to carry out the shutoff to the fabrication hole simultaneously, make front end housing 32 and rear end housing 33 can be general, with the simple clamp plate installation locking of end cover can, machining process has been reduced, assembly process and shutoff process, improve product production efficiency, the cost is reduced, the product sealing point has been reduced, reduce the risk point of revealing, the product structure is compacter, save product installation usage space.
In the present embodiment, the groove 13 penetrates the end cap gasket 1 in the thickness direction.
Two extending ends 12 are arranged, the two extending ends 12 are symmetrically arranged, the slot 13 is arranged at one of the extending ends 12, and the other extending end 12 is provided with an opening 121.
Through penetrating the fluting 13 the sealed thickness direction that fills up, set up trompil 121 on another extension end 12 to can be general around with the end cover sealed end, it is more convenient to install.
As shown in fig. 2 to 7, the present embodiment further includes a pilot gas circuit 2 of the solenoid valve, including:
the air inlet 21 is connected with an air source;
the first pilot gas path 22 is arranged in the valve body 31, one end of the first pilot gas path 22 is communicated with the gas inlet 21, and the other end of the first pilot gas path is communicated to the front end cover 32;
the second pilot gas path 23 is arranged in the valve body 31, one end of the second pilot gas path 23 is communicated with the gas inlet 21, and the other end of the second pilot gas path is communicated to the rear end cover 33;
the two slots 13 are respectively arranged on the front end cover 32 sealing gasket 1 and the rear end cover 33 sealing gasket 1, one slot 13 is used for communicating the first pilot gas path 22 with the front piston cavity 312, and the other slot 13 is used for communicating the second pilot gas path 23 with the rear piston cavity 323;
and the control assembly 24 controls the on-off of the first pilot gas circuit 22 and/or the second pilot gas circuit 23 by the control assembly 24.
Through set up fluting 13 on end cover sealing gasket 1, communicate fluting 13 with guide's gas pocket 34 and piston chamber respectively, can directly realize turning to of guide's gas circuit, thereby need not in the end cover with guide's gas, the operation of punching to the end cover has been removed from, also save the step that uses the end plug to carry out the shutoff to the fabrication hole simultaneously, make front end housing 32 and rear end housing 33 can be general, with the simple clamp plate installation locking of end cover can, machining process has been reduced, assembly process and shutoff process, improve product production efficiency, the cost is reduced, the product sealing point has been reduced, reduce the risk point of revealing, the product structure is compacter, save product installation usage space.
In this embodiment, the control component 24 is disposed on the first pilot gas path 22, and controls on/off of the first pilot gas path 22, and the area of the front piston cavity 312 is larger than that of the rear piston cavity 323;
when the first pilot gas path 22 is disconnected, the first gas enters the second pilot gas path 23 from the gas inlet 21, enters the rear piston cavity 323 through the slot 13, and pushes the valve core 311 to move in a direction away from the rear end cover 33;
when the first pilot air passage 22 is communicated, the pilot air simultaneously enters the first pilot air passage 22 and the second pilot air passage 23 from the air inlet 21, and respectively enters the front piston cavity 312 and the rear piston cavity 323 through the two slots 13, at this time, the pressure of the front piston cavity 312 is greater than that of the rear piston cavity 323, and the valve core 311 is pushed to move in the direction away from the front end cover 32.
By arranging the control assembly 24 on one side only and simultaneously arranging the area of the front piston cavity 312 to be larger than the area of the rear piston cavity 323, when the front piston cavity 312 and the rear piston cavity 323 are communicated with each other in an air-guiding mode, the pressure of the front piston cavity 312 can be larger, and therefore the movement of the valve core 311 in two directions can be realized only through one control assembly 24.
Wherein the control assembly 24 comprises:
the pilot seat 241 is arranged on the first pilot gas path 22 and/or the second pilot gas path 23;
the movable iron core 242 and the static iron core 243, a gap is formed between the movable iron core 242 and the static iron core 243, the movable iron core 242 can slide to be close to or far away from the static iron core 243, a coil is arranged outside the movable iron core 242, and when the coil is electrified, the movable iron core 242 moves towards the direction close to the static iron core 243;
a reset mechanism 244 for restricting the movable core 242 from moving toward the stationary core 243 when the coil is not energized;
when the coil is not energized, the movable iron core 242 blocks the first pilot gas passage 22 and/or the second pilot gas passage 23.
In the above embodiment, the first pilot gas passage 22 and the second pilot gas passage 23 are preferably provided symmetrically at a position communicating with the front end cover 32 and the rear end cover 33.
The first pilot air passage 22 and the second pilot air passage 23 are symmetrically arranged at the positions where the first pilot air passage communicates with the front end cover 32 and the rear end cover 33, and correspond to the two symmetrical extending ends 12 on the end cover gasket 1, so that the end cover gasket 1 can be used in front and rear directions.
As shown in fig. 8 to 9, the present embodiment further includes a solenoid valve 3, including:
the valve comprises a valve body 31, wherein a slidable valve core 311 is arranged in the valve body 31, switching action is realized when the valve core 311 moves, a front cover piston and a rear cover piston are respectively arranged at two ends of the valve core 311, and a front piston cavity 312 and a rear piston cavity 323 are correspondingly arranged on the valve body 31;
the front end cover 32 and the rear end cover 33, the front end cover 32 and the rear end cover 33 are respectively arranged at the front piston cavity 312 and the rear piston cavity 323 of the valve body 31, and the end cover sealing gasket 1 is arranged between the front end cover 32 and the valve body 31 as well as between the rear end cover 33 and the valve body 31;
the pilot air hole 34 is arranged on the valve body 31 and comprises an air inlet 21, and two ends of the pilot air hole 34 respectively extend to the front end cover 32 and the rear end cover 33;
the end cover sealing gasket 1 is provided with a slot 13, and the slot 13 is communicated with the pilot air hole 34 and the front piston cavity 312 or the pilot air hole 34 and the rear piston cavity 323;
the control assembly 24 is arranged at the pilot air hole 34, and the control assembly 24 controls the on-off of the pilot air hole 34.
Through set up fluting 13 on end cover sealing gasket 1, communicate fluting 13 with guide's gas pocket 34 and piston chamber respectively, can directly realize turning to of guide's gas circuit, thereby need not in the end cover with guide's gas, the operation of punching to the end cover has been removed from, also save the step that uses the end plug to carry out the shutoff to the fabrication hole simultaneously, make front end housing 32 and rear end housing 33 can be general, with the simple clamp plate installation locking of end cover can, machining process has been reduced, assembly process and shutoff process, improve product production efficiency, the cost is reduced, the product sealing point has been reduced, reduce the risk point of revealing, the product structure is compacter, save product installation usage space.
Wherein the control assembly 24 may use electromagnetic control, or other control techniques.
Preferably, the control assembly 24 is disposed between the pilot air hole 34 and the front cover 32, and the area of the front piston cavity 312 is larger than the area of the rear piston cavity 323;
when the control assembly 24 is closed, firstly, air enters the pilot air hole 34 from the air inlet 21, and then enters the rear piston cavity 323 through the open slot 13 at the rear end cover 33, so as to push the valve core 311 to move in a direction away from the rear end cover 33;
when the control assembly 24 is opened, the pilot gas enters the pilot gas hole 34 from the gas inlet 21 and enters the front piston cavity 312 and the rear piston cavity 323 through the two slots 13, and at this time, the pressure in the front piston cavity 312 is greater than that in the rear piston cavity 323, so that the valve core 311 is pushed to move away from the front end cover 32.
By making the area of the front piston chamber 312 larger than the area of the rear piston chamber 323, when the front piston chamber 312 and the rear piston chamber 323 are simultaneously in air-guide communication, the pressure of the front piston chamber 312 can be made larger, so that the movement of the spool 311 in two directions can be realized only by one control assembly 24.
As a preferable example of the above embodiment, the pilot air holes 34 are symmetrically provided at both ends extending to the front end cap 32 and the rear end cap 33, so that the end cap gasket 1 is used in both front and rear directions, thereby increasing convenience.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A solenoid valve end cap gasket, comprising:
the area of the main body is larger than that of the piston cavity, the main body covers the piston cavity on the valve body, is arranged between the end cover and the piston cavity and seals the end cover and the piston cavity;
the extension end extends to the pilot air hole on the valve body to cover the pilot air hole;
the main body and the extension end are provided with a slot, the slot extends from the middle of the main body to the middle of the extension end, and the slot communicates the pilot air hole with the piston cavity.
2. A solenoid valve end cap seal according to claim 1 wherein said slot extends through said end cap seal in the thickness direction.
3. The electromagnetic valve end cover gasket according to claim 2, wherein there are two said extending ends, said two extending ends are symmetrically disposed, said slot is disposed on one of said extending ends, and the other of said extending ends is provided with an opening.
4. A solenoid valve, comprising:
the valve comprises a valve body, wherein a slidable valve core is arranged in the valve body, switching action is realized when the valve core moves, a front cover piston and a rear cover piston are respectively arranged at two ends of the valve core, and a front piston cavity and a rear piston cavity are correspondingly arranged in the valve body;
the front end cover and the rear end cover are respectively arranged at a front piston cavity and a rear piston cavity of the valve body, and the end cover sealing gaskets of any one of claims 1 to 3 are arranged between the front end cover and the valve body and between the rear end cover and the valve body;
the pilot air hole is arranged on the valve body and comprises an air inlet, and two ends of the pilot air hole respectively extend to the front end cover and the rear end cover;
the end cover sealing gasket is provided with a slot which is communicated with the pilot air hole and the front piston cavity or the pilot air hole and the rear piston cavity;
and the control component is arranged at the pilot air hole and used for controlling the on-off of the pilot air hole.
5. The solenoid valve of claim 4 wherein said control assembly is disposed between said pilot air port to said front end cap, said front piston cavity having an area greater than an area of said rear piston cavity;
when the control assembly is closed, firstly introducing gas from the gas inlet into the pilot gas hole, and then introducing the gas into the rear piston cavity through the notch in the rear end cover to push the valve core to move towards the direction far away from the rear end cover;
when the control assembly is opened, firstly air is introduced from the air inlet into the pilot air hole and respectively enters the front piston cavity and the rear piston cavity through the two slots, and at the moment, the pressure of the front piston cavity is greater than that of the rear piston cavity, so that the valve core is pushed to move towards the direction far away from the front end cover.
6. The solenoid valve as claimed in claim 4, wherein the pilot air holes are symmetrically arranged to extend to both ends of the front cover and the rear cover.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320076782.1U CN219300047U (en) | 2022-10-20 | 2022-10-20 | Pilot gas circuit |
| CN202222776005.6U CN218377931U (en) | 2022-10-20 | 2022-10-20 | Electromagnetic valve end cover sealing gasket and electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222776005.6U CN218377931U (en) | 2022-10-20 | 2022-10-20 | Electromagnetic valve end cover sealing gasket and electromagnetic valve |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320076782.1U Division CN219300047U (en) | 2022-10-20 | 2022-10-20 | Pilot gas circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218377931U true CN218377931U (en) | 2023-01-24 |
Family
ID=84932640
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222776005.6U Active CN218377931U (en) | 2022-10-20 | 2022-10-20 | Electromagnetic valve end cover sealing gasket and electromagnetic valve |
| CN202320076782.1U Active CN219300047U (en) | 2022-10-20 | 2022-10-20 | Pilot gas circuit |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320076782.1U Active CN219300047U (en) | 2022-10-20 | 2022-10-20 | Pilot gas circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN218377931U (en) |
-
2022
- 2022-10-20 CN CN202222776005.6U patent/CN218377931U/en active Active
- 2022-10-20 CN CN202320076782.1U patent/CN219300047U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN219300047U (en) | 2023-07-04 |
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