CN210344313U - Isolated lever solenoid valve - Google Patents
Isolated lever solenoid valve Download PDFInfo
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- CN210344313U CN210344313U CN201920534473.8U CN201920534473U CN210344313U CN 210344313 U CN210344313 U CN 210344313U CN 201920534473 U CN201920534473 U CN 201920534473U CN 210344313 U CN210344313 U CN 210344313U
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Abstract
The utility model discloses an isolated lever solenoid valve relates to solenoid valve technical field, include: the electromagnetic valve comprises a main valve body, an outlet end cover, an upper valve cover, a lever sealing assembly and an electromagnetic driving device, wherein the main valve body is provided with an inlet and a sealing cavity, the outlet end cover is provided with an outlet and a valve port, the valve port extends into the sealing cavity, the upper valve cover is provided with a vacant cavity and an electromagnetic interface, and the lever sealing assembly comprises a valve port sealing element, an isolation sealing element, a lever supporting plate and a supporting rod; the electromagnetic driving device is fixed on the upper valve cover through the electromagnetic interface and comprises an electromagnetic valve body, an iron core which is movably and telescopically arranged in the electromagnetic valve body and a spring which is arranged in the electromagnetic valve body and used for ejecting the iron core.
Description
Technical Field
The utility model belongs to the technical field of the solenoid valve technique and specifically relates to an isolated lever solenoid valve.
Background
The electromagnetic valve is industrial equipment controlled by electromagnetism, and is an automatic basic element for controlling fluid, the conventional electromagnetic valve generally pulls a movable iron core to move or reset by the electromagnetic force, a sealing element is arranged on the movable iron core, and the opening and closing of a main valve port or a pilot valve port are directly controlled; it is known that the larger the caliber of the solenoid valve is, the higher the caliber is, the larger the pressure is, the larger the force required to move the movable iron core is, and the force is generated by the electromagnetic force of the electromagnetic coil, so that the power or the volume of the electromagnetic coil is required to be larger in this case, which is not beneficial to the exquisite design of the solenoid valve.
The common electromagnetic valve has very high requirements on fluid, the viscosity of the fluid cannot be too high, the cleanliness of the fluid must be good, impurities cannot exist, the acidity and alkalinity of the fluid must be close to neutrality and the like, otherwise, parts in the valve can be blocked and do not work, and finally the performance of the electromagnetic valve is affected. The isolation structure can prevent such problems from occurring. At present, 2 isolated electromagnetic valves exist in the market, one is a direct diaphragm isolation type, and the electromagnetic valve with the structure is usually small in flow path and low in pressure; the other is that an O-shaped ring is arranged on the valve core, the iron core is isolated from the fluid through the O-shaped ring, the structure is complex, and the valve core and the O-shaped ring are used for dynamically sealing, so that the sealing effect is not ideal.
For example, the invention discloses a fuel gas isolated embedded electromagnetic valve disclosed in the Chinese patent CN 103322276A. A fuel gas isolated embedded electromagnetic valve comprises a valve body, wherein a stop iron is arranged at the upper part of the left side of the valve body, a moving rod is arranged below the stop iron and is connected with the valve body through a spring, the lower part of the moving rod is tightly contacted with a sealing valve port of the valve body through a sealing gasket, the sealing valve port of the valve body is communicated with an air inlet channel in the valve body, the moving rod is contacted with a guide pipe, an electromagnetic coil is arranged around the guide pipe, an embedded electromagnetic valve shell is arranged outside the electromagnetic coil, and when the electromagnetic coil is electrified, the stop iron attracts the moving rod to enable the sealing gasket to be; the isolation type embedded electromagnetic valve of the invention patent can not realize complete isolation of fluid and an electromagnetic driving device.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an above-mentioned defect to prior art exists, specially propose an isolated lever solenoid valve, solved current solenoid valve can not realize the problem of fluid and electromagnetic drive device's complete isolation to and the power that the big pressure is high more high needs to make movable iron core remove is just big facing the solenoid valve bore, make solenoid's power or the bigger problem of volume, be unfavorable for the exquisite design of solenoid valve.
In order to solve the technical problem, the utility model provides an isolated lever solenoid valve, include: the electromagnetic valve comprises a main valve body, an outlet end cover, an upper valve cover, a lever sealing assembly and an electromagnetic driving device, wherein the main valve body is provided with an inlet and a sealing cavity, the outlet end cover is provided with an outlet and a valve port, the valve port extends into the sealing cavity, the upper valve cover is provided with a vacant cavity and an electromagnetic interface, and the lever sealing assembly comprises a valve port sealing element, an isolation sealing element, a lever supporting plate and a supporting rod; the electromagnetic driving device is fixed on the upper valve cover through an electromagnetic interface and comprises an electromagnetic valve body, an iron core which is movably and telescopically arranged in the electromagnetic valve body and a spring which is arranged in the electromagnetic valve body and used for ejecting the iron core out, and one end of the iron core extends into the hollow cavity and is movably connected with the A end of the supporting rod;
an isolation sealing element is arranged between the vacant cavity and the sealing cavity, the B end of the supporting rod is sleeved in the isolation sealing element and extends into the sealing cavity, the valve port sealing element is fixed at the B end of the supporting rod, when the electromagnetic valve body is powered off, the iron core is ejected out through the spring so as to drive the supporting rod to swing, the valve port sealing element fixed at the B end of the supporting rod seals the valve port, and the electromagnetic valve is in a closed state; when the electromagnetic valve body is electrified, the iron core retracts to drive the support rod to swing, so that the valve port sealing element fixed at the end B of the support rod opens the valve port, the electromagnetic valve is in an open state, and when fluid enters the electromagnetic valve, no matter the fluid is in the open state or the closed state, the fluid cannot enter the upper valve cover end, namely the fluid and the electromagnetic driving device are completely isolated, so that the influence of the fluid on the electromagnetic driving device can be well reduced, for example, the iron core is blocked due to the existence of granular impurities in the fluid under the condition of no isolation; the acidic fluid can corrode the iron core, etc.
The middle position of the isolation sealing element is provided with an arc isolation surface, the support rod is inserted from the arc isolation surface, so that the support rod can swing flexibly, and the end B of the support rod is formed into the isolation sealing element at one time as an insert; the isolation sealing element is made of polytetrafluoroethylene and is formed by injection molding; by adopting the technical scheme, the isolating sealing element can completely wrap the end B of the support rod, so that the support rod is completely separated from a fluid medium, namely, after the fluid enters the sealing cavity from the inlet, the fluid directly flows out through the valve port and the outlet and cannot contact other components, the protection effect is achieved, and the complete isolation of the fluid and the electromagnetic driving device is finally realized.
The support rod is made of stainless steel, the middle of the support rod is cylindrical, and the end A and the end B are both in a ball head shape, so that the end B of the support rod cannot be separated after being inserted into the valve port sealing element for fixation.
The valve port sealing element is arranged on the valve port, and the inclination of the valve port sealing element is adjustable according to actual conditions such as opening degree of the valve port, size of the valve port sealing element and installation position, so that the valve port sealing element can be completely attached to the valve port when the electromagnetic valve is closed, the valve port sealing element is made of rubber, and the rubber can be NBR, EPDM, VITON and the like.
A lever supporting plate used for pressing the isolation sealing element is further arranged between the isolation sealing element and the upper valve cover, a through hole is formed in the middle of the lever supporting plate, the aperture size of the through hole is larger than the diameter size of a middle column of the supporting rod, the upper end and the lower end of the through hole are both designed with a fillet, and the lever supporting plate is further used as a supporting point for the movement of the supporting rod; the lever supporting plate is made of polyurethane.
Wherein, the top of the main valve body and the bottom of the upper valve cover are provided with grooves for arranging isolation sealing elements.
The iron core comprises a large cylindrical end and a small cylindrical end, the large cylindrical end moves in the electromagnetic valve body, and a square open slot capable of accommodating the ball head of the A end of the supporting rod is formed in the top end of the small cylindrical end.
Wherein, the inlet of the main valve body, the outlet of the outlet end cover and the valve port are arranged on the same axis; compared with other conventional solenoid valves, the pressure loss of the fluid passing through the solenoid valve is less, and impurities in the fluid with the tiny particles are easier to directly flush out of the outlet.
Drawings
Fig. 1 is a schematic view of the closed state of an isolated lever solenoid valve according to the present invention;
fig. 2 is a schematic view of an open state of an isolated lever solenoid valve according to the present invention;
FIG. 3 is a structural diagram of the lever seal assembly of the present invention;
FIG. 4 is a view showing the structure of the valve port sealing member of the present invention;
fig. 5 is a perspective view of an isolated lever solenoid valve of the present invention;
fig. 6 is a perspective view of the lever seal assembly of the present invention;
in the figure: 1 is a main valve body; 2 is an outlet end cover; 3 is an upper valve cover; 4 is a lever seal assembly; 5 is an electromagnetic driving device; 6 is an inlet; 7 is a sealed cavity; 8 is an outlet; 9 is a valve port; 10 is valve port sealing element; 11 is an isolation seal; 12 is a lever support plate; 13 is a supporting rod; 14 is an electromagnetic interface; 15 is a solenoid valve body; 16 is an iron core; 17 is a spring; 18 is an empty cavity; 19 is an arc-shaped isolation surface; 20 is a groove; 21 is a large cylindrical end; 22 is a small cylindrical end; 23 is a square open slot; 24 sealing surfaces.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1:
the utility model discloses isolated lever solenoid valve, as shown in figure 1, figure 2, figure 3, figure 4, figure 5 and figure 6, include: the main valve body 1 is provided with an inlet 6 and a sealing cavity 7, the outlet end cover 2 is provided with an outlet 8 and a valve port 9, the outer wall of one end of the valve port 9 on the outlet end cover 2 is provided with an external thread, as shown in fig. 1, the right part of the sealing cavity 7 on the main valve body 1 is provided with an opening with an internal thread, the outlet end cover 2 is arranged on the main valve body 1 through the matching of the external thread and the internal thread, the valve port 9 can extend into the sealing cavity 7, the sealing is easier to realize, the upper valve cover 3 is provided with a vacant cavity 18 and an electromagnetic interface 14, the vacant cavity 18 is positioned inside the upper valve cover 3, the electromagnetic interface 14 is positioned on the side part of the vacant cavity 18, and the lever sealing component 4 comprises a valve port sealing element 10, an isolation sealing element 11, a lever supporting plate 12 and a supporting rod 13;
the electromagnetic driving device 5 is fixed on the upper valve cover 3 through an electromagnetic interface 14, specifically, the electromagnetic driving device 5 is fixed through threaded connection, the electromagnetic driving device 5 comprises an electromagnetic valve body 15, an iron core 16 which is movably and telescopically arranged in the electromagnetic valve body 15, and a spring 17 which is arranged in the electromagnetic valve body 15 and used for ejecting the iron core 16, one end of the iron core 16 extends into the vacant cavity 18 and is movably connected with the end A of the supporting rod 13, specifically, a spring groove is further arranged at one end part of the iron core 16, which is positioned in the electromagnetic driving device 5, and the spring groove can be used for accommodating the spring 17 and can also be used for limiting or fixing the spring 17;
an isolation sealing element 11 is arranged between the vacant cavity 18 and the sealing cavity 7, and grooves 20 for arranging the isolation sealing element 11 are arranged at the top of the main valve body 1 and the bottom of the upper valve cover 3; the B end of the strut 13 is sleeved in the isolation sealing element 11 and extends into the sealing cavity 7, the valve port sealing element 10 is fixed at the B end of the strut 13, when the electromagnetic valve body 15 is powered off, the iron core 16 is ejected out through the spring 17 so as to drive the strut 13 to swing, the valve port sealing element 10 fixed at the B end of the strut 13 seals the valve port 9, and the electromagnetic valve is in a closed state; when the solenoid valve body 15 is energized, the iron core 16 retracts to drive the strut 13 to swing, so that the valve port sealing element 10 fixed at the end B of the strut 13 opens the valve port 9, and the solenoid valve is in an open state.
An arc-shaped isolation surface 19 is arranged in the middle of the isolation sealing piece 11, specifically, the arc-shaped isolation surface 19 is in a fold or wave shape, the strut 13 is inserted from the arc-shaped isolation surface 19 so that the strut 13 can swing flexibly, a wrapping sleeve extending into the sealing cavity 7 is arranged in the middle of the arc-shaped isolation surface 19, the end B of the strut 13 is firmly wrapped by the wrapping sleeve and extends into the sealing cavity 7, in specific implementation, the end B of the strut 13 is formed into the isolation sealing piece 11 as an insert at one time, further, the isolation sealing piece 11 is made of polytetrafluoroethylene, the isolation sealing piece 11 is formed by injection molding, when fluid enters the electromagnetic valve, no matter the electromagnetic valve is in an open state or a closed state, the fluid cannot enter the upper valve cover 3 end, namely, the fluid is completely isolated from the electromagnetic driving device 5, so that the influence of the fluid on the electromagnetic driving device 5 can be well reduced, for example, under the condition of no isolation, the existence of granular impurities in the fluid can cause the iron core to be blocked; the acidic fluid can corrode the iron core, etc.
As shown in fig. 3, the strut 13 is made of stainless steel, the middle is cylindrical, and the end a and the end B are both in a ball head shape, so that the end B of the strut 13 is inserted into the valve port sealing member 10 and fixed without being separated, specifically, the strut 13 and the valve port sealing member 10 are separated by an arc-shaped separation surface 19, that is, the end B of the strut 13 is sleeved in the arc-shaped separation surface 19 and then inserted into the valve port sealing member 10 for fixing, and a sufficient separation effect can be achieved.
According to the opening degree of the valve port 9, an inclination is arranged on one side of the valve port sealing element 10 for sealing the valve port 9, and the size, the installation position and other actual conditions of the valve port sealing element 10 can be adjusted.
In the practical application process, when fluid enters the electromagnetic valve, no matter the electromagnetic valve is in an open state or a closed state, the fluid cannot enter the interior of the upper valve cover 3, that is, the fluid is completely isolated from the electromagnetic driving device 5, and the fluid is also completely isolated from the support rod 13, so that the influence of granular impurities in the fluid and the fluid on the electromagnetic driving device is reduced, and particularly, the granular impurities in the fluid can cause the iron core 16 to be blocked; the acidic-bearing fluid may corrode the iron core 16, etc.
Further, according to the working principle of the isolated lever solenoid valve of the present embodiment, when the solenoid valve body 15 is not energized, as shown in fig. 1 and fig. 2, the iron core 16 is pushed leftward by the elastic force of the spring 17, and the iron core 16 drives the rod 13 to rotate counterclockwise, so that the valve port sealing member 10 moves rightward. Because the sealing surface 24 for sealing the valve port 9 on the valve port sealing element 10 is inclined, the valve port 9 is just completely sealed, at this time, fluid can not flow out from the valve port 9 after entering the electromagnetic valve, and the electromagnetic valve is in a closed state; when the solenoid valve body 15 is energized, the generated electromagnetic force overcomes the elastic force of the spring 17 to move the iron core 16 to the right, the iron core 16 drives the strut 13 to rotate clockwise, the valve port sealing element 10 is driven by the strut 13 to move to the left, at this time, the valve port sealing element 10 is separated from the valve port 9, fluid flows out from the outlet 8 through the valve port 9, and the solenoid valve is in an open state.
Example 2:
compared with the embodiment 1, in the embodiment 2, a lever supporting plate 12 for compressing the isolation sealing member 11 is further arranged between the isolation sealing member 11 and the upper valve cover 3, a through hole is formed in the middle of the lever supporting plate 12, the aperture size of the through hole is larger than the diameter size of a middle column of the supporting rod 13, the upper end and the lower end of the through hole are both rounded, the lever supporting plate 12 is further used as a supporting point for the movement of the supporting rod 13, the supporting rod 13 is more stable, and the lever supporting plate 12 is made of polyurethane.
Example 3:
in this embodiment, the iron core 16 includes a large cylindrical end 21 and a small cylindrical end 22, the large cylindrical end 21 moves in the solenoid valve body 15, a square opening slot 23 capable of accommodating a ball head of the end of the supporting rod 13A is disposed at the top end of the small cylindrical end 22, and the small cylindrical end 22 and the supporting rod 13 can be connected through a movable hinge or a similar movable structure, which can achieve the same effect.
Example 4:
compared with embodiment 1, in this embodiment, the inlet 6 of the main valve body 1, the outlet 8 of the outlet end cover 2 and the valve port 9 are arranged on the same axis, and compared with the situation that the pipeline of other conventional solenoid valves is bent, the pressure loss of fluid passing through the solenoid valve of this embodiment is less, and impurities in fluid with fine particles are easier to directly flush out of the valve port 9.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An isolated lever solenoid valve, comprising: the electromagnetic valve comprises a main valve body (1), an outlet end cover (2), an upper valve cover (3), a lever sealing assembly (4) and an electromagnetic driving device (5), wherein an inlet (6) and a sealing cavity (7) are arranged on the main valve body (1), an outlet (8) and a valve port (9) are arranged on the outlet end cover (2), a vacant cavity (18) and an electromagnetic interface (14) are arranged on the upper valve cover (3), and the lever sealing assembly (4) comprises a valve port sealing element (10), an isolation sealing element (11) and a support rod (13);
the electromagnetic driving device (5) is fixed on the upper valve cover (3) through the electromagnetic interface (14), the electromagnetic driving device (5) comprises an electromagnetic valve body (15), an iron core (16) which is movably and telescopically arranged in the electromagnetic valve body (15), and a spring (17) which is arranged in the electromagnetic valve body (15) and used for ejecting the iron core (16), and one end of the iron core (16) extends into the vacant cavity (18) and is movably connected with the end A of the supporting rod (13);
an isolation sealing element (11) is arranged between the vacant cavity (18) and the sealing cavity (7), the end B of the support rod (13) is sleeved in the isolation sealing element (11) and extends into the sealing cavity (7), the valve port sealing element (10) is fixed at the end B of the support rod (13), when the electromagnetic valve body (15) is powered off, the iron core (16) is ejected out through the spring (17) so as to drive the support rod (13) to swing, the valve port sealing element (10) fixed at the end B of the support rod (13) seals the valve port (9), and the electromagnetic valve is in a closed state; when the electromagnetic valve body (15) is electrified, the iron core (16) retracts to drive the support rod (13) to swing, so that the valve port sealing element (10) fixed at the end B of the support rod (13) opens the valve port (9), and the electromagnetic valve is in an open state.
2. The isolated lever solenoid valve according to claim 1, wherein an arc-shaped isolation surface (19) is arranged in the middle of the isolation sealing member (11), the strut (13) is inserted from the arc-shaped isolation surface (19) to enable the strut (13) to swing flexibly, and the end B of the strut (13) is formed into the isolation sealing member (11) as an insert at one time.
3. An isolated lever solenoid valve as claimed in claim 2, wherein said isolating seal (11) is made of teflon and said isolating seal (11) is injection molded.
4. An isolated lever solenoid valve according to claim 1, wherein said strut (13) is made of stainless steel, cylindrical in the middle, and both the a and B ends are ball-headed.
5. An isolated lever solenoid valve according to claim 1, wherein the side of the valve port sealing member (10) for sealing the valve port (9) is inclined according to the opening degree of the valve port (9), so that the valve port sealing member (10) can completely fit the valve port (9) when the solenoid valve is closed, and the valve port sealing member (10) is made of rubber.
6. An isolated lever solenoid valve according to claim 1, wherein a lever support plate (12) for pressing the isolating seal (11) is further disposed between the isolating seal (11) and the upper valve cover (3), a through hole is disposed in the middle of the lever support plate (12), the aperture size of the through hole is larger than the diameter size of the middle column of the supporting rod (13), and the lever support plate (12) is further used as a supporting point for the movement of the supporting rod (13).
7. An isolated lever solenoid valve as claimed in claim 6 wherein said lever support plate (12) is polyurethane.
8. An isolated lever solenoid valve according to claim 1, wherein the top of the main valve body (1) and the bottom of the upper valve cover (3) are provided with grooves (20) for the placement of the isolating seals (11).
9. An isolated lever solenoid valve according to claim 1, wherein the iron core (16) comprises a large cylindrical end (21) and a small cylindrical end (22), the large cylindrical end (21) is movable in the solenoid valve body (15), and the top end of the small cylindrical end (22) is provided with a square opening slot (23) capable of accommodating the ball head type of the A end of the support rod (13).
10. An isolated lever solenoid valve according to claim 1, wherein the inlet (6) of the main valve body (1), the outlet (8) of the outlet end cap (2) and the valve port (9) are arranged on the same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534473.8U CN210344313U (en) | 2019-04-19 | 2019-04-19 | Isolated lever solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534473.8U CN210344313U (en) | 2019-04-19 | 2019-04-19 | Isolated lever solenoid valve |
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| Publication Number | Publication Date |
|---|---|
| CN210344313U true CN210344313U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920534473.8U Active CN210344313U (en) | 2019-04-19 | 2019-04-19 | Isolated lever solenoid valve |
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| Country | Link |
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| CN (1) | CN210344313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081186A (en) * | 2019-04-19 | 2019-08-02 | 余姚市三力信电磁阀有限公司 | A kind of isolated lever magnetic valve |
-
2019
- 2019-04-19 CN CN201920534473.8U patent/CN210344313U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081186A (en) * | 2019-04-19 | 2019-08-02 | 余姚市三力信电磁阀有限公司 | A kind of isolated lever magnetic valve |
| CN110081186B (en) * | 2019-04-19 | 2024-03-15 | 余姚市三力信电磁阀有限公司 | Isolation type lever electromagnetic valve |
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