CN201902636U - Automatic vacuum air throttle - Google Patents
Automatic vacuum air throttle Download PDFInfo
- Publication number
- CN201902636U CN201902636U CN2010206791206U CN201020679120U CN201902636U CN 201902636 U CN201902636 U CN 201902636U CN 2010206791206 U CN2010206791206 U CN 2010206791206U CN 201020679120 U CN201020679120 U CN 201020679120U CN 201902636 U CN201902636 U CN 201902636U
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- Prior art keywords
- inner cavity
- cavity chamber
- vacuum air
- air throttle
- automatic vacuum
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to an automatic vacuum air throttle, which comprises a throttle body and a cylindrical casing, wherein a throttle cap is arranged at the top end of the throttle body; the bottom end surface of the throttle body is connected with the top end surface of the casing; the outer lateral surface of the casing is surrounded by an electromagnet; and a sliding iron core is inserted into an inner cavity of the casing in a sliding manner and is positioned in the magnetic field of the electromagnet. The automatic vacuum air throttle is characterized in that a first inner chamber and a second inner chamber which are arranged in a stepped circular hole structure are arranged inside the throttle body; the diameter of the first inner chamber is greater than that of the second inner chamber; an outlet is arranged on the first inner chamber; an inlet is arranged on the second inner chamber; and the joint of the first inner chamber and the second inner chamber is matched with a valve core to form a sealing structure in which the sealed part is linearly sealed. Through the automatic vacuum air throttle, the interference and the damage of a medium to the sealed part of the automatic vacuum air throttle are relieved and reduced, so that the throttling of the automatic vacuum air throttle is more thorough and the sealing performance of the automatic vacuum air throttle is improved.
Description
Technical field
The utility model relates to the vacuum control unit that is used for the permanent-magnet ferrite moulding, relates in particular to a kind of automatic vacuum air throttle.
Background technique
Need to use following medium in the permanent-magnet ferrite moulding: strontium ferrite particle slurry, water, make releasing agent after being mixed by saponified oil and kerosene, be used for the rape oil of lubricated mould and additive etc., above medium need flow in the vacuum air throttle.Existing vacuum air throttle has electrodynamic type and mechanical type.The existing sealing employing face contact seal that is used for by the vacuum air throttle of vacuum gas circulation, face contact seal generally includes plane sealing or cambered surface fitted seal, and the fine particles of strontium ferrite slurry, its granularity is 0.7-1.0u, the shape size is irregular, deposit buildup very easily, and water-oil mixture stickiness height, strong adhesion, when the sticking stickiness that mixes of water-oil mixture and metal granule is higher, adhesion is stronger, and above medium is during along with the vacuum pneumatic motion of vacuum air throttle and plane sealing face by the vacuum air throttle or cambered surface sealing surface, medium remains on the sealing surface, causes sealing surface to be easy to generate gas leak phenomenon, solar term are not thorough.
The model utility content
The technical problem that the utility model solves is: provide a kind of solar term thoroughly, can alleviate the automatic vacuum air throttle that medium is hindered and damaged.
The technical solution of the utility model is: a kind of automatic vacuum air throttle, comprise valve body and columnar housing, and the top of described valve body is provided with valve gap, and the bottom end of valve body is connected with the top end of described housing; Described hull outside bread is with electromagnet, one slip iron core slides and is inserted in the inner chamber of described housing, and described slip iron core is arranged in the magnetic field of described electromagnet, it is characterized in that, described valve inner has first inner cavity chamber and second inner cavity chamber that is step borehole structure layout, and the diameter of first inner cavity chamber is greater than the diameter of second inner cavity chamber, described first inner cavity chamber is provided with outlet, described second inner cavity chamber is provided with import, and the junction point between described first inner cavity chamber and described second inner cavity chamber cooperates the formation sealing part to be the sealing configuration of linear sealing with a spool.
The sealing configuration that described sealing part is linear sealing comprises spool and the ring plastic base plate that is arranged on described first inner cavity chamber bottom, described spool comprises a frustoconic shape sealed department and is arranged on the connecting rod of this little bottom surface of frustoconic shape sealed department, this connecting rod links to each other with the top of described slip iron core, the big bottom surface of described frustoconic shape sealed department is connected with a spring, this spring is pressed into the frustoconic shape sealed department of described spool in the center hole of described ring plastic base plate, the mouth of the ring side of described frustoconic shape sealed department and described center hole along between be linear and contact.
The handle face diameter of described frustoconic shape sealed department is less than the diameter of the center hole of plastic base plate, and the big bottom surface diameter of frustoconic shape sealed department is greater than the diameter of the center hole of plastic base plate.
Take in the hole that described plastic base plate is supported and fixed between first inner cavity chamber and second inner cavity chamber, and the center hole diameter of described ring plastic base plate is less than or equal to the diameter of described second inner cavity chamber.
The valve gap of valve body is provided with an adjusting screw rod, and this adjusting screw rod stretches into first inner cavity chamber of valve body, and an end of described spring is connected with the big bottom surface of frustoconic shape sealed department, and the other end of spring is connected with the inserting end of adjusting screw rod.
Be provided with sealing gasket between the bottom end of described valve body and the top end of described housing.
Described valve gap and described housing are fixed by double-screw bolt and described valve body respectively.
The beneficial effects of the utility model are: valve inner has first inner cavity chamber and second inner cavity chamber that is step borehole structure layout, first inner cavity chamber is provided with outlet, described second inner cavity chamber is provided with import, first inner cavity chamber is a vacuum chamber, second inner cavity chamber is the charging chamber, because the sealing part of the sealing configuration between described first inner cavity chamber and described second inner cavity chamber is linear sealing, when therefore medium is along with the vacuum pneumatic motion of vacuum air throttle and by the vacuum air throttle, medium is difficult to remain in linear sealing part, even there is a spot of medium to stick on linear sealing part, vacuum pneumatic also can wash away this a spot of medium, thereby alleviate and reduce medium hindering and damaging to automatic vacuum air throttle sealing part, make that the solar term of automatic vacuum air throttle are more thorough, improved the sealability of automatic vacuum air throttle.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of spool in the utility model;
Fig. 3 is the structural representation of plastic base plate in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Referring to Fig. 1～Fig. 3, a kind of automatic vacuum air throttle comprises valve body 1 and columnar housing 2, and the top of valve body 1 is provided with valve gap 3, and valve gap 3 is fixed on the top end of valve body 1 by double-screw bolt.The top end of the bottom end of valve body 1 and housing 2 is connected and fixed by double-screw bolt.Be surrounded by electromagnet 4 at housing 2 outer side surfaces, slip iron core 5 slides and is inserted in the inner chamber of housing 2, and slip iron core 5 is arranged in the magnetic field of electromagnet 4.Have columniform first 1a of inner cavity chamber and columniform second 1b of inner cavity chamber in the inside of valve body 1, first 1a of inner cavity chamber and second 1b of inner cavity chamber are the step borehole structure and arrange, and the diameter of first 1a of inner cavity chamber has the hole shoulder greater than the diameter of second 1b of inner cavity chamber between first 1a of inner cavity chamber of formation step hole structure and second 1b of inner cavity chamber.First 1a of inner cavity chamber is provided with outlet 6, the second 1b of inner cavity chamber and is provided with import 7.Junction point between first 1a of inner cavity chamber and second 1b of inner cavity chamber cooperates the formation sealing part to be the sealing configuration of linear sealing with a spool 8.The sealing configuration that sealing part is linear sealing comprises spool 8 and the ring plastic base plate 9 that is arranged on first 1a of inner cavity chamber bottom, take in the hole that plastic base plate 9 is supported and fixed between first 1a of inner cavity chamber and second 1b of inner cavity chamber, the center hole 9a diameter of ring plastic base plate 9 is equal to or less than the diameter of second 1b of inner cavity chamber, and the center hole 9a diameter of ring plastic base plate 9 equals the diameter of second 1b of inner cavity chamber in the present embodiment.Spool 8 comprises a frustoconic shape sealed department 8a and is arranged on the connecting rod 8b of this little bottom surface of frustoconic shape sealed department that this connecting rod 8b links to each other with the top of slip iron core 5.The valve gap 3 of valve body is provided with an adjusting screw rod 11, this adjusting screw rod 11 stretches into first 1a of inner cavity chamber of valve body, one end of spring 10 is connected with the big bottom surface of frustoconic shape sealed department 8a, the other end of spring 10 is connected with the inserting end of adjusting screw rod 11, spring 10 is pressed into the frustoconic shape sealed department 8a of spool among the center hole 9a of ring plastic base plate 9, the mouth of the ring side of frustoconic shape sealed department 8a and center hole 9a along between be linear and contact.The handle face diameter of frustoconic shape sealed department 8a is less than the diameter of the center hole 9a of plastic base plate 9, and the big bottom surface diameter of frustoconic shape sealed department 8a is greater than the diameter of the center hole 9a of plastic base plate 9.Be provided with sealing gasket 12 between the top end of the bottom end of valve body 1 and housing 2, between valve body 1 and columnar housing 2, also be provided with an insulator layer 13.Export 6 external vacuum pumps, make among the 1a of inner cavity chamber that wins and produce vacuum.Electromagnet 4 external control power supplys.Working principle of the present utility model is such: when the electromagnet 4 of vacuum air throttle obtains 24 volts of direct currents, under the magnetic force of electromagnet 4,5 moments of slip iron core with spool 8 tops to first 1a of inner cavity chamber, produce the slit between the center hole 9a of the frustoconic shape sealed department 8a of spool 8 and plastic base plate 9 at this moment, import 7 this moment is connected with outlet 6, be full of vacuum pneumatic in first 1a of inner cavity chamber and second 1b of inner cavity chamber, this vacuum pneumatic flows to outlet rapidly, the medium that enters into second inner cavity chamber by import 7 also with vacuum pneumatic by the slit flow between the center hole 9a of frustoconic shape sealed department 8a and plastic base plate 9 to exporting 6, enter at last in the jar of storing negative-pressure vacuum, owing to contact for linear sealing between the center hole 9a of frustoconic shape sealed department 8a and plastic base plate 9, therefore medium is difficult to remain in the linear sealing part between the center hole 9a of frustoconic shape sealed department 8a and plastic base plate, even there is a spot of medium to stick on linear sealing part, vacuum pneumatic also can wash away this a spot of medium, thereby alleviates and reduce medium hindering and damaging automatic vacuum air throttle sealing part.When existing vacuum pneumatic, first 1a of inner cavity chamber will constantly repeat said process.When electromagnet 4 dead electricity, under the effect of spring 10, slip iron core 5 resets rapidly, and the linear sealing of generation is tight between the center hole 9a of the frustoconic shape sealed department 8a of spool 8 and plastic base plate 9 simultaneously, by vacuum pneumatic, realizes the purpose of solar term.If outlet has faint vacuum pneumatic, need to adjust the adjusting screw rod 11 on the valve gap 3, screwing adjusting screw rod 11 sides has increased the elastic force of spring 10, make that the frustoconic shape sealed department 8a of spool 8 is tightr along what contact with the mouth of plastic base plate center hole 9a, sealing fully between frustoconic shape sealed department 8a and plastic base plate center hole 9a.
Claims (7)
1. an automatic vacuum air throttle comprises valve body (1) and columnar housing (2), and the top of described valve body (1) is provided with valve gap (3), and the bottom end of valve body (1) is connected with the top end of described housing (2); Described housing (2) outer side surface is surrounded by electromagnet (4), one slip iron core (5) slides and is inserted in the inner chamber of described housing (2), and described slip iron core (5) is arranged in the magnetic field of described electromagnet (4), it is characterized in that: described valve body (1) inside has first inner cavity chamber (1a) and second inner cavity chamber (1b) that is step borehole structure layout, and the diameter of first inner cavity chamber (1a) is greater than the diameter of second inner cavity chamber (1b), described first inner cavity chamber (1a) is provided with outlet (6), described second inner cavity chamber (1b) is provided with import (7), and the junction point between described first inner cavity chamber (1a) and described second inner cavity chamber (1b) cooperates the formation sealing part to be the sealing configuration of linear sealing with a spool (8).
2. according to the described automatic vacuum air throttle of claim 1, it is characterized in that: the sealing configuration that described sealing part is linear sealing comprises spool (8) and is arranged on the ring plastic base plate (9) of described first inner cavity chamber (1a) bottom, described spool (8) comprises a frustoconic shape sealed department (8a) and is arranged on the connecting rod (8b) of this little bottom surface of frustoconic shape sealed department, this connecting rod (8b) links to each other with the top of described slip iron core (5), the big bottom surface of described frustoconic shape sealed department (8a) is connected with a spring (10), this spring (10) is pressed into the frustoconic shape sealed department (8a) of described spool in the center hole (9a) of described ring plastic base plate (9), the mouth of the ring side of described frustoconic shape sealed department (8a) and described center hole (9a) along between be linear and contact.
3. according to the described automatic vacuum air throttle of claim 2, it is characterized in that: the handle face diameter of described frustoconic shape sealed department (8a) is less than the diameter of the center hole (9a) of plastic base plate (9), and the big bottom surface diameter of frustoconic shape sealed department (8a) is greater than the diameter of the center hole (9a) of plastic base plate (9).
4. according to the described automatic vacuum air throttle of claim 2, it is characterized in that: take in the hole that described plastic base plate (9) is supported and fixed between first inner cavity chamber (1a) and second inner cavity chamber (1b), and center hole (9a) diameter of described ring plastic base plate (9) is less than or equal to the diameter of described second inner cavity chamber (1b).
5. according to the described automatic vacuum air throttle of claim 2, it is characterized in that: the valve gap of valve body (3) is provided with an adjusting screw rod (11), this adjusting screw rod (11) stretches into first inner cavity chamber (1a) of valve body, one end of described spring (10) is connected with the big bottom surface of frustoconic shape sealed department (8a), and the other end of spring (10) is connected with the inserting end of adjusting screw rod (11).
6. according to the described automatic vacuum air throttle of claim 1, it is characterized in that: be provided with sealing gasket (12) between the top end of the bottom end of described valve body (1) and described housing (2).
7. according to the described automatic vacuum air throttle of claim 1, it is characterized in that: described valve gap (3) and described housing (2) are fixing by double-screw bolt and described valve body (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206791206U CN201902636U (en) | 2010-12-24 | 2010-12-24 | Automatic vacuum air throttle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206791206U CN201902636U (en) | 2010-12-24 | 2010-12-24 | Automatic vacuum air throttle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902636U true CN201902636U (en) | 2011-07-20 |
Family
ID=44273230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206791206U Expired - Fee Related CN201902636U (en) | 2010-12-24 | 2010-12-24 | Automatic vacuum air throttle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533788A (en) * | 2016-11-10 | 2018-09-14 | 郑州艾莫弗信息技术有限公司 | A kind of solenoid electric valve of the industrial production with mixed function |
| CN114838185A (en) * | 2021-02-01 | 2022-08-02 | 浙江三花智能控制股份有限公司 | Electric valve |
-
2010
- 2010-12-24 CN CN2010206791206U patent/CN201902636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533788A (en) * | 2016-11-10 | 2018-09-14 | 郑州艾莫弗信息技术有限公司 | A kind of solenoid electric valve of the industrial production with mixed function |
| CN114838185A (en) * | 2021-02-01 | 2022-08-02 | 浙江三花智能控制股份有限公司 | Electric valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kunming Hualing Gaoheng Magnetic Materials Co., Ltd. Assignor: Chongqing Lingda Industry Co., Ltd. Contract record no.: 2012530000040 Denomination of utility model: Automatic vacuum air throttle Granted publication date: 20110720 License type: Exclusive License Record date: 20120705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |