CN113483144A - Pilot-operated type electromagnetic valve - Google Patents
Pilot-operated type electromagnetic valve Download PDFInfo
- Publication number
- CN113483144A CN113483144A CN202110574313.8A CN202110574313A CN113483144A CN 113483144 A CN113483144 A CN 113483144A CN 202110574313 A CN202110574313 A CN 202110574313A CN 113483144 A CN113483144 A CN 113483144A
- Authority
- CN
- China
- Prior art keywords
- shell
- hole
- casing
- main valve
- valve core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
- F16K31/408—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston the discharge being effected through the piston and being blockable by an electrically-actuated member making contact with the piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a pilot-operated electromagnetic valve which comprises a shell, wherein a through hole is formed in the shell, the shell is connected with a shell end socket, the pilot-operated electromagnetic valve also comprises a shell, one end of the shell end socket penetrates through the through hole at the closed end of the shell, the shell is arranged in the shell, the shell and the shell end socket are integrally sleeved in the shell, the open end of the shell is fixedly connected with a coil assembly base, an armature anchor is further sleeved in the through hole of the shell, a through hole is formed in the middle of the armature anchor, a valve core pressing ring is arranged in the through hole of the armature anchor, a through hole is formed in the middle of the valve core pressing ring, a spring is arranged in the through hole of the valve core pressing ring, a valve core is arranged in the through hole of the armature anchor, the armature anchor is connected with a valve core of a main valve, a valve seat support of the main valve is connected to the bottom of the valve core, and a sealing ring is arranged between the valve seat support of the main valve and the valve core of the main valve. In the invention, a rigid sealing structure is arranged between the main valve core and the main valve seat support, and the sealing structure can effectively seal the main valve core and the main valve seat support.
Description
Technical Field
The invention belongs to the technical field of electromagnetic valves, and particularly relates to a pilot-operated electromagnetic valve.
Background
The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured. There are many types of solenoid valves, with different solenoid valves functioning at different locations in the control system, the most common being one-way valves, safety valves, directional control valves, speed control valves, etc.
Under the condition that the upstream pressure of an existing pilot electromagnetic valve is unstable, particularly when an upstream supercharging device is a periodic reciprocating piston pump, the phenomenon that a valve core is automatically opened can occur, so that auxiliary closing measures must be set for the pilot electromagnetic valve in many application scenes, the application of the pilot electromagnetic valve is limited, and therefore a pilot electromagnetic valve needs to be provided.
Disclosure of Invention
The invention aims to provide a pilot-operated solenoid valve, which aims to solve the problem that the pilot-operated solenoid valve is opened automatically under the condition of unstable upstream pressure.
The present invention is achieved as such, a pilot-operated solenoid valve comprising:
the coil component comprises a shell, a casing cover and a valve core pressing ring, wherein the through hole is formed in the shell, one end of the casing is connected with the casing end socket, the casing is provided with a through hole in the middle, the other end of the casing is provided with an opening, one end of the casing end socket penetrates through the through hole in the closed end of the casing, the casing cover is arranged in the shell, the casing and the casing end socket are integrally sleeved in the casing cover, the open end of the casing is fixedly connected with a coil component base, the top of the coil component base is embedded in the casing cover, an armature anchor is further sleeved in the through hole of the casing, the through hole is formed in the middle of the armature anchor, the valve core pressing ring is arranged in the through hole of the armature anchor, the through hole is formed in the middle of the valve core pressing ring, one end is equipped with the spring in the through-hole of case clamping ring, armature anchor through-hole be equipped with the case, armature anchor and main valve case be connected, the main valve case is located the casing, the bottom of main valve case is equipped with the main valve disk seat and supports, is provided with the sealing washer between main valve disk seat support and the main valve case.
Preferably, as a preferred aspect of the present invention, a sealing ring is installed between the housing and one end of the housing end enclosure.
Preferably, as a preferred aspect of the present invention, the armature anchor is a flange-like structure having a through hole in the middle and annular edges at both ends.
Preferably, as a preferred aspect of the present invention, the shell is a flange-like structure having a through hole in the middle and annular edges at both ends, and the annular edge at one end is fixedly connected to the inner wall at the upper end of the outer shell.
Preferably, as a preferred aspect of the present invention, the diameter of the coil block base is the same as the diameter of the through hole at the upper portion of the housing, and the outer wall surface of the case is closely attached to the coil block base and the inner wall surface of the housing.
Preferably, as a preferred aspect of the present invention, a spring washer is disposed between the valve core and the end face of the valve core pressing ring.
Preferably, as a preferred aspect of the present invention, the anchor has an annular flange at an end thereof, and the main valve spool is clamped to the flange.
Preferably, as a preferred aspect of the present invention, a seal ring is provided between the main valve spool and the housing.
Preferably, as a preferred aspect of the present invention, the coil assembly is wound around the outer wall surface of the housing.
Preferably, as a preferred aspect of the present invention, the bottom end of the casing end socket is sleeved with a split retaining ring and an O-ring, and the split retaining ring is located at a position above the O-ring.
Compared with the prior art, the invention has the beneficial effects that:
a rigid sealing structure is arranged between the main valve spool and the main valve seat support, and the sealing structure can effectively seal the main valve spool and the main valve seat support. The invention realizes the balance of the upper and lower pressures of the main valve core and avoids the abnormal opening of the main valve core caused by the change of the upstream pressure.
Drawings
FIG. 1 is a schematic view of a pilot operated solenoid valve according to the present invention;
FIG. 2 is a schematic diagram of a pilot-operated solenoid valve according to the present invention;
fig. 3 is a schematic view of the housing structure.
In the figure: the coil assembly comprises a shell body sealing head 1, a coil assembly 2, a shell body 3, an armature anchor 4, a valve core pressing ring 5, a coil assembly base 6, a spring gasket 7, a valve core 8, a main valve core 9, a sealing ring 10, a main valve seat support 11, a spring 12, a shell 13, a shell sleeve 14 and a transverse through hole 15.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, in the description of the present invention, furthermore, "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected through the insides of two elements. It will be understood by those of ordinary skill in the art that the above terms in the present invention have the meaning of "a plurality" of two or more in each particular case unless specifically defined otherwise.
As shown in fig. 1, the present invention provides a pilot-operated solenoid valve: the method comprises the following steps:
a shell 3, the interior of the shell 3 has a step-shaped through hole structure, the bottom of the shell 3 is provided with a transverse through hole 15 perpendicular to the middle through hole, one end (the upper end shown in figure 1) of the shell 3 is in threaded connection with a shell seal head 1, a sealing ring is arranged between the shell 3 and one end (the lower end shown in figure 1) of the shell seal head 1, the other end (the upper end shown in figure 1) of the shell seal head 1 passes through the through hole at the upper part of a shell 13, the shell 13 is a thin-wall cylinder structure with one closed end and a through hole in the middle and an open other end, the shell 14 is a flange-shaped structure with a through hole at the middle and annular edges at the two ends, the annular edge of one end (the upper end shown in figure 1) of the shell 13 is fixedly connected with the inner wall of the shell 13, the shell 3 and the shell seal head 1 are integrally sleeved in the through hole of the shell 14, and a coil assembly base 6 is fixedly connected with the open end of the shell 13, the diameter of the thin-wall cylinder of the coil component base 6 is the same as that of the through hole at the upper part of the shell 14, the outer wall surface of the shell 3 is tightly attached to the inner wall surfaces of the coil component base 6 and the shell 14, the through hole of the shell 3 is also sleeved with a rod-shaped armature anchor 4, the middle of the armature anchor 4 is provided with a through hole, a valve core press ring 5 is arranged in the through hole of the armature anchor 4, the middle of the valve core press ring 5 is provided with a step-shaped through hole, one end of the through hole is sleeved with a spring 12, the other end of the through hole of the armature anchor 4 is provided with a valve core 8, a spring gasket 7 is arranged between the valve core 8 and the end surface of the valve core press ring 5, one end of the armature anchor 4 is externally provided with an annular flange, a main valve core 9 is clamped outside the flange, the main valve core 9 is positioned in the shell 3, and a sealing ring is arranged between the main valve core 9 and the shell 3, the bottom of the main valve core 9 is provided with a main valve seat support 11, the middle of the main valve seat support 11 is provided with a step-shaped through hole, and a sealing ring 10 is arranged between the main valve seat support 11 and the main valve core 9.
The coil assembly 2 is wound around the outer wall surface of the housing 14 so as to generate a magnetic action.
The bottom end of the shell end socket 1 is sleeved with a split retainer ring and an O-shaped ring, and the split retainer ring is positioned above the O-shaped ring to increase the sealing property.
The outer side of the lower end of the shell 3 is provided with a split retainer ring and an O-shaped ring, and the split retainer ring is positioned above the O-shaped ring for improving the sealing property. The side end of the bottom of the shell 3 is provided with a through hole 15.
The upper end of the main valve core 9 is sleeved with an O-shaped ring for increasing the sealing property.
The bottom end of the main valve seat support 11 is sleeved with a split retainer ring and an O-shaped ring for improving the sealing property.
As shown in fig. 2, the working process of the present invention is as follows:
when the coil is powered on, the armature anchor 4 moves upwards under the action of suction, firstly, the small-caliber channel sealed by the valve core 8 is opened, the pressure relief of the cavity at the upper end of the main valve core 9 is realized, then, the armature anchor 4 drives the main valve core 9 to continuously move upwards under the action of suction until the channel is completely opened, and the effect of opening the large channel with small suction is realized.
The invention has the beneficial effects that: when the coil is electrified, a gap is formed between the shell 3 and the main valve spool 9 through the upward movement of the armature anchor 4, and the gas establishes a pressure in a cavity between the spool 8 and the main valve spool 9, so that the main valve spool 9 is driven to move upwards, and the effect of opening a large channel by small suction is realized. Meanwhile, a rigid sealing structure is arranged between the main valve spool and the main valve seat support, and the sealing structure can effectively seal the main valve spool and the main valve seat support.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pilot operated solenoid valve, comprising:
the coil component comprises a shell, a casing cover and a valve core pressing ring, wherein the through hole is formed in the shell, one end of the casing is connected with the casing end socket, the casing is provided with a through hole in the middle, the other end of the casing is provided with an opening, one end of the casing end socket penetrates through the through hole in the closed end of the casing, the casing cover is arranged in the shell, the casing and the casing end socket are integrally sleeved in the casing cover, the open end of the casing is fixedly connected with a coil component base, the top of the coil component base is embedded in the casing cover, an armature anchor is further sleeved in the through hole of the casing, the through hole is formed in the middle of the armature anchor, the valve core pressing ring is arranged in the through hole of the armature anchor, the through hole is formed in the middle of the valve core pressing ring, one end is equipped with the spring in the through-hole of case clamping ring, armature anchor through-hole be equipped with the case, armature anchor and main valve case be connected, the main valve case is located the casing, the bottom of main valve case is equipped with the main valve disk seat and supports, is provided with the sealing washer between main valve disk seat support and the main valve case.
2. A pilot operated solenoid valve according to claim 1 wherein: and a sealing ring is arranged between the shell and one end of the shell end socket.
3. A pilot operated solenoid valve according to claim 1 wherein: the armature anchor is of a flange-shaped structure with a through hole in the middle and annular edges at two ends.
4. A pilot operated solenoid valve according to claim 1 wherein: the shell is a flange-shaped structure with through holes in the middle and annular edges at two ends, and the annular edge at one end is fixedly connected with the inner wall at the upper end of the shell.
5. A pilot operated solenoid valve according to claim 1 wherein: the diameter of the coil component base is the same as that of the through hole in the upper part of the shell, and the outer wall surface of the shell is tightly attached to the coil component base and the inner wall surface of the shell.
6. A pilot operated solenoid valve according to claim 1 wherein: and a spring gasket is arranged between the valve core and the end face of the valve core pressing ring.
7. A pilot operated solenoid valve according to claim 4 wherein: the outer part of one end of the armature anchor is provided with an annular flange, and the valve core of the main valve is clamped outside the flange.
8. A pilot operated solenoid valve according to claim 1 wherein: and a sealing ring is arranged between the main valve core and the shell.
9. A pilot operated solenoid valve according to claim 1 wherein: and the outer wall surface of the shell is wound with a coil assembly.
10. A pilot operated solenoid valve as set forth in claim 1 wherein: the bottom end of the shell end socket is sleeved with a split retainer ring and an O-shaped ring, and the split retainer ring is positioned above the O-shaped ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110574313.8A CN113483144A (en) | 2021-05-25 | 2021-05-25 | Pilot-operated type electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110574313.8A CN113483144A (en) | 2021-05-25 | 2021-05-25 | Pilot-operated type electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113483144A true CN113483144A (en) | 2021-10-08 |
Family
ID=77933107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110574313.8A Pending CN113483144A (en) | 2021-05-25 | 2021-05-25 | Pilot-operated type electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113483144A (en) |
-
2021
- 2021-05-25 CN CN202110574313.8A patent/CN113483144A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211112 Address after: 215400 No. 10, huangtang Road, luheguan, Huangjing Town, Taicang City, Suzhou City, Jiangsu Province Applicant after: Suzhou Qipan Technology Co., Ltd Address before: Room 528, No. 3, Lane 688, beijiangju Road, Minhang District, Shanghai 201100 Applicant before: Shanghai Qipan Technology Co., Ltd |