CN115076443A - Screw thread fastening type membrane type pilot large-flow proportional valve - Google Patents
Screw thread fastening type membrane type pilot large-flow proportional valve Download PDFInfo
- Publication number
- CN115076443A CN115076443A CN202210713290.9A CN202210713290A CN115076443A CN 115076443 A CN115076443 A CN 115076443A CN 202210713290 A CN202210713290 A CN 202210713290A CN 115076443 A CN115076443 A CN 115076443A
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- CN
- China
- Prior art keywords
- valve
- diaphragm
- valve body
- core head
- valve rod
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- 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
- F16K31/02—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
- 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
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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
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/487—Attaching valve members to screw-spindles by a fixing element extending in the axial direction of the spindle, e.g. a screw
Abstract
The invention relates to a thread fastening type membrane type pilot large-flow proportional valve, which comprises a valve body, a valve cover, a valve rod, a valve core head, an elastic sheet and a membrane assembly, wherein the valve cover is arranged on the valve body; the valve body is provided with a fluid inlet and a fluid outlet; the valve cover is arranged on the valve body, the valve core head is arranged at the lower end of the valve rod and is used for controlling the opening degree of a flow passage in the valve body; the elastic sheet is positioned in the valve cover, the valve rod is matched with the elastic sheet, the diaphragm assembly is arranged in a cavity formed by the valve body and the valve cover, and pilot holes are arranged on the valve rod and the valve core head and are communicated with the fluid inlet and the pressure balance space; the scheme adopts a membrane type pilot structure, so that the starting force is greatly reduced, and further the starting voltage of the coil is reduced; the membrane component adopts a modular design, so that low-cost quick series products are facilitated; the diaphragm assembly adopts a threaded structure, and an inner compression gasket and an outer compression gasket are adopted, so that different compression parameters can be adopted for different flows, the richness of the parameters of the product is improved, and various types of diaphragms can be customized according to different customer requirements.
Description
Technical Field
The invention relates to a thread fastening type membrane type pilot high-flow proportional valve, and belongs to the technical field of proportional valves.
Background
The electromagnetic proportional valve is an important device for accurately controlling the flow of fluid, and in order to overcome the problem of opening pressure difference of the valve and reduce the starting load, the applicant applies a membrane type pilot high-flow proportional valve in the past, CN202210439835.1, a closed pressure balance space is separated in the valve through an optimally designed membrane component, and a pilot opening structure is formed in the valve by matching with a pilot hole; however, the structure of the diaphragm assembly with the structure is still somewhat complex and not simple enough, and needs to be optimized.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a thread fastening type membrane type pilot large-flow proportional valve.
In order to achieve the purpose, the invention adopts the technical scheme that: a thread fastening type membrane type pilot large-flow proportional valve comprises a valve body, a valve cover, a valve rod, a valve core head, an elastic sheet and a membrane assembly; the valve body is provided with a fluid inlet and a fluid outlet, and a flow passage for communicating the fluid inlet and the fluid outlet is arranged in the valve body; the valve cover is arranged on the valve body, the upper end of the valve rod is matched with the valve cover, the valve core head is arranged at the lower end of the valve rod, and the valve core head is used for controlling the opening degree of a flow passage in the valve body; the elastic sheet is positioned in the valve cover, the valve rod is matched with the elastic sheet, the diaphragm assembly is arranged in a cavity formed by the valve body and the valve cover, and a closed pressure balance space is formed at the upper side of the diaphragm assembly; and pilot holes are arranged on the valve rod and the valve core head and are communicated with the fluid inlet and the pressure balance space.
The diaphragm assembly comprises a diaphragm, a thread fastening piece, a supporting piece and a valve rod gasket; the threaded fastening piece is positioned on the upper side of the supporting sheet and fixedly connected with the supporting sheet through a fastening screw, the outer ring part of the diaphragm is clamped by the threaded fastening piece and the supporting sheet, and the inner ring part of the diaphragm is clamped by the valve rod and the valve core head matched with the valve rod gasket.
Preferably, the thread fastening piece is matched with the valve body through a thread structure, and a sealing ring matched with the valve body and the valve cover is arranged on the thread fastening piece.
Preferably, the stem gasket is located on the upper side of the diaphragm.
Preferably, a magnetic conduction frame is arranged above the valve cover, a coil framework is arranged on the magnetic conduction frame, a coil is arranged on the coil framework, a magnetic conductor is connected to the upper end of the valve rod, and the magnetic conductor and the coil are matched through electromagnetic induction.
Preferably, a gasket is arranged on the lower side of the valve core head.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the thread fastening type membrane pilot large-flow proportional valve, the membrane assembly is optimally designed, the gasket of the outer ring of the membrane is eliminated, the structure that the thread fastening piece and the supporting piece are directly screwed tightly by screws and the outer ring of the membrane is clamped is adopted, the design is simplified, the assembly is easier, and the effect is better; the whole body is still a film type pilot structure, so that the starting force is greatly reduced, and further the starting voltage of the coil is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a thread fastening type membrane pilot large-flow proportional valve.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "straight", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
As shown in the attached drawing 1, the thread fastening type membrane pilot high-flow proportional valve comprises a valve body 1, a valve cover 2, a valve rod 3, a valve core head 4, an elastic sheet 5 and a membrane assembly; the valve body 1 is provided with a fluid inlet 6 and a fluid outlet 7, and a flow passage for communicating the fluid inlet 6 and the fluid outlet 7 is arranged in the valve body 1.
The valve gap 2 is installed on the valve body 1, the upper end of the valve rod 3 is matched with the valve gap 2, the valve core head 4 is arranged at the lower end of the valve rod 3, the valve core head 4 is matched with the valve rod 3 through a thread structure, the upper portion of the valve gap 2 is provided with a magnetic conduction frame 21, the magnetic conduction frame 21 is provided with a coil framework 22, the coil framework 22 is provided with a coil 23, the upper end of the valve rod 3 is connected with a magnetizer 24, the valve rod 3 and the magnetizer 24 penetrate through the valve gap 2, the magnetizer 24 is matched with the coil 23 through electromagnetic induction, the valve rod 3 drives the valve core head 4 to slightly move up and down, and the opening degree of a flow channel in the valve body 1 is controlled.
The lower side of the valve core head 4 is provided with a sealing gasket 9, and the sealing gasket 9 has elasticity and can reduce the starting pressure to a certain extent.
The elastic sheet 5 is positioned in the valve cover 2, the valve rod 3 is matched with the elastic sheet 5 to form downward reaction force on the elastic sheet 5, the diaphragm assembly is arranged between the valve body 1 and the valve cover 2, and a closed pressure balance space is formed between the diaphragm assembly and the valve cover 2; the valve rod 3 and the valve core head 4 are provided with pilot holes 8, and the pilot holes 8 are communicated with the fluid inlet 6 and the pressure balance space.
The diaphragm assembly comprises a diaphragm 11, a threaded fastening piece 12, a supporting piece 13 and a valve rod gasket 15; the screw fastening piece 12 is located on the upper side of the supporting piece 13, the screw fastening piece 12 is fixedly connected with the supporting piece 13 through a fastening screw 14 and clamps the outer ring part of the diaphragm 11, the valve rod 3 and the valve core head 4 are matched with a valve rod gasket 15 to clamp the inner ring part of the diaphragm 11, and the valve rod gasket 15 can be arranged on the upper side or the lower side of the diaphragm 11.
The threaded fastening piece 12 and the support piece 13 can be directly placed between the valve body 1 and the valve cover 2 and clamped and fixed by the valve body 1 and the valve cover 2; the screw fastening plate 12 may also be mounted on the valve body 1 or the bonnet 2 by a screw structure to improve the stability of assembly.
And the thread fastening piece 12 is provided with a sealing ring 16 matched with the valve body 1 and the valve cover 2 so as to ensure the sealing degree of a pressure balance space and improve the sealing degree of the valve body 1 and the valve cover 2.
The technical scheme adopts the modularized diaphragm assembly, and overcomes the problem that the parameters cannot be adjusted because the die in the traditional technology is directly fixed and formed at one time; in addition, the scheme adopts an inner group of compression gaskets and an outer group of compression gaskets and adopts thread adjustment, so that metal friction between the gaskets and the fastening sheet or the supporting sheet and between the gaskets and the valve rod or the valve core head is realized when the compression diaphragm is adjusted, the diaphragm made of non-metal materials is protected, and the service life of the diaphragm is greatly prolonged; the pilot structure of this scheme of adoption has greatly reduced power and the power that executive component needs.
The diaphragm assembly is optimized, the gasket of the diaphragm outer ring is eliminated, the screw fastening piece and the supporting piece are screwed tightly directly by screws, the structure of the diaphragm outer ring is clamped, the design is simplified, and the assembly is easier.
The above-mentioned embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (5)
1. A thread fastening type membrane type pilot large-flow proportional valve comprises a valve body (1), a valve cover (2), a valve rod (3), a valve core head (4), an elastic sheet (5) and a membrane assembly; the valve body (1) is provided with a fluid inlet (6) and a fluid outlet (7), and a flow channel for communicating the fluid inlet (6) with the fluid outlet (7) is arranged in the valve body (1); the valve cover (2) is arranged on the valve body (1), the upper end of the valve rod (3) is matched with the valve cover (2), the valve core head (4) is arranged at the lower end of the valve rod (3), and the valve core head (4) is used for controlling the opening degree of a flow channel in the valve body (1); the elastic piece (5) is positioned in the valve cover (2), the valve rod (3) is matched with the elastic piece (5), the diaphragm assembly is arranged in a cavity formed by the valve body (1) and the valve cover (2), and a closed pressure balance space is formed on the upper side of the diaphragm assembly; pilot holes (8) are arranged on the valve rod (3) and the valve core head (4), and the pilot holes (8) are communicated with the fluid inlet (6) and the pressure balance space;
the method is characterized in that: the diaphragm assembly comprises a diaphragm (11), a thread fastening piece (12), a support piece (13) and a valve rod gasket (15); the thread fastening piece (12) is located on the upper side of the supporting sheet (13), the thread fastening piece (12) is fixedly connected with the supporting sheet (13) through a fastening screw (14), the outer ring part of the diaphragm (11) is clamped by the thread fastening piece (12) and the supporting sheet (13), and the inner ring part of the diaphragm (11) is clamped by the valve rod (3) and the valve core head (4) matched with a valve rod gasket (15).
2. A threaded-fastened diaphragm pilot mass flow proportional valve according to claim 1, characterized in that: the thread fastening piece (12) is matched with the valve body (1) through a thread structure, and a sealing ring (16) matched with the valve body (1) and the valve cover (2) is arranged on the thread fastening piece (12).
3. A threaded-fastened diaphragm pilot mass flow proportional valve according to claim 1, characterized in that: the valve stem gasket (15) is located on the upper side of the diaphragm (11).
4. A threaded-fastened diaphragm pilot mass flow proportional valve according to claim 1, characterized in that: the valve is characterized in that a magnetic conduction frame (21) is arranged above the valve cover (2), a coil framework (22) is arranged on the magnetic conduction frame (21), a coil (23) is arranged on the coil framework (22), a magnetizer (24) is connected to the upper end of the valve rod (3), and the magnetizer (24) is matched with the coil (23) through electromagnetic induction.
5. A threaded-fastened diaphragm pilot mass flow proportional valve according to claim 1, characterized in that: and a sealing gasket (9) is arranged on the lower side of the valve core head (4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210713290.9A CN115076443A (en) | 2022-06-22 | 2022-06-22 | Screw thread fastening type membrane type pilot large-flow proportional valve |
| PCT/CN2022/101489 WO2023245691A1 (en) | 2022-06-22 | 2022-06-27 | Threaded fastening type diaphragm type pilot large-flow proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210713290.9A CN115076443A (en) | 2022-06-22 | 2022-06-22 | Screw thread fastening type membrane type pilot large-flow proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115076443A true CN115076443A (en) | 2022-09-20 |
Family
ID=83254317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210713290.9A Pending CN115076443A (en) | 2022-06-22 | 2022-06-22 | Screw thread fastening type membrane type pilot large-flow proportional valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115076443A (en) |
| WO (1) | WO2023245691A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1113604A (en) * | 1997-06-27 | 1999-01-19 | Keihin Corp | Electromagnetic air control valve |
| JP2004162806A (en) * | 2002-11-13 | 2004-06-10 | Fujikin Inc | Diaphragm type electromagnetic driving valve |
| JP6281046B2 (en) * | 2012-04-23 | 2018-02-21 | 株式会社テージーケー | Control valve for variable capacity compressor |
| DE102016211516A1 (en) * | 2016-06-27 | 2017-12-28 | Staiger Gmbh & Co. Kg | Valve |
| CN207961602U (en) * | 2018-03-21 | 2018-10-12 | 浙江威腾阀门有限公司 | Novel diaphragm electromagnetic valve |
| CN209916959U (en) * | 2018-12-19 | 2020-01-10 | 常州市武进人民医院 | Pressure adjustable simple respirator |
| CN113790299A (en) * | 2021-09-14 | 2021-12-14 | 苏州仁甬得物联科技有限公司 | Large-traffic proportional valve control mechanism |
-
2022
- 2022-06-22 CN CN202210713290.9A patent/CN115076443A/en active Pending
- 2022-06-27 WO PCT/CN2022/101489 patent/WO2023245691A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023245691A1 (en) | 2023-12-28 |
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