CN201779333U - Throttling two-position two-way solenoid valve - Google Patents
Throttling two-position two-way solenoid valve Download PDFInfo
- Publication number
- CN201779333U CN201779333U CN2010202940659U CN201020294065U CN201779333U CN 201779333 U CN201779333 U CN 201779333U CN 2010202940659 U CN2010202940659 U CN 2010202940659U CN 201020294065 U CN201020294065 U CN 201020294065U CN 201779333 U CN201779333 U CN 201779333U
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- valve
- throttling
- solenoid valve
- way solenoid
- needle
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Abstract
The utility model relates to a throttling two-position two-way solenoid valve, which is characterized in that a solenoid coil and a valve plug are arranged in a valve body, a sealing gasket is arranged below the valve plug, the lower end of the valve plug is sleeved with a spring, an annular space outside the spring is communicated with an air inlet cavity, the air inlet cavity and an air outlet cavity are controlled and switched by the valve plug, and the air outlet cavity is communicated with an air outlet; the bottom of the valve body is provided with a threaded hole, a throttling valve needle is screwed into the bottom of the valve body from the threaded hole, and an apex part at the front end of the throttling valve needle is over against the air outlet cavity, a seal ring is arranged in an annular groove at the front part of the throttling valve needle, and the rear part of the throttling valve needle is provided with a jam nut. In the utility model, the throttling valve needle is added based on an original throttling two-position two-way solenoid valve through a screw structure, the expansion of the valve needle is adjusted and the area of an annular section formed by the apex part of the valve needle and the air outlet cavity is changed, thereby changing the flow velocity of gases flowing through the valve, and when the flow velocity meets the preset requirements, the state of the solenoid valve of the utility model is stabilized by screwing up the nut. Compared with a pneumatic pressure proportional valve with the similar function, the utility model is simpler in structure, higher in control precision and cheap in price, therefore, the throttling two-position two-way solenoid valve of the utility model can widely be popularized.
Description
Technical field
The utility model relates to a kind of pneumatic control components, is specifically related to a kind of control valve that with electrical signal air pressure, flow velocity is carried out accurate control in pneumatic system.
Background technique
Existing Pneumatic pressure, the proportional valve of flow control valve, manual pressure regulating valve (reduction valve), adjustable restrictive valve etc.Wherein:
Proportional valve: it detects mouth pressure by pressure transducer, by the break-make of electrical signal, realizes the control to system pressure.In the practical process of reality,, can't be competent at the occasion that required precision is higher because of its delivery pressure fluctuation is bigger.Also there is the price height,, had a strong impact on its use the exigent problem of user's technical capability.
Manual pressure regulating valve (reduction valve): it is bigger that its delivery pressure is influenced by incoming pressure.When system is realized static pressure control, cooperate practicality with solenoid valve, even cooperate practicality, also be difficult to competent occasion of having relatively high expectations with solenoid valve.
Adjustable restrictive valve cooperates practical with solenoid valve: because adjustable restrictive valve and solenoid valve are two discrete each other elements, the connecting line that must have certain-length between the two, just formed a cavity in the pipeline, there is an effect that lags behind or impact in the existence of this cavity to the control of system pressure, the volume of cavity is big more, and hysteresis or the effect of impacting are obvious more.So, also can't be applied in the system of high requirement.
The existing two-position two-way solenoid valve structure that is used with adjustable restrictive valve as shown in Figure 2, electromagnetic coil 1, spool 2 are arranged in the valve, sealing gasket 3 is arranged under the spool, spool lower end outer casing spring 4, the outer annular space of spring communicates with air-inlet cavity 5, air-inlet cavity and outlet chamber 6 are by spool control break-make, and outlet chamber is communicated with air outlet 7.
Summary of the invention
The purpose of this utility model is at above-mentioned present situation, aims to provide a kind of throttle type two-position two-way solenoid valve.
The implementation of the utility model purpose is, the throttle type two-position two-way solenoid valve has electromagnetic coil, spool in the valve body, under the spool sealing gasket is arranged, spool lower end outer casing spring, the outer annular space of spring communicates with air-inlet cavity, and outlet chamber is communicated with the air outlet, tapped hole of valve body bottom processing, the throttling needle is from the tapped hole precession, the cone tip part position of throttling needle front end faces outlet chamber, loads onto seal ring in the forward annular groove, and fastening screw nut is equipped with at the rear portion.
The utility model installs the throttling needle additional by worm structure on the valve body of former two-position two-way solenoid valve, and the adjusting needle is flexible, change the annular cross-sectional area that needle awl point and outlet chamber form, thereby change the flow velocity that flows through valve gas, when flow velocity reaches requirement, tighten fastening screw nut, make it in stable condition.The utility model is compared function class, and seemingly Pneumatic pressure Proportional valve structure is simpler, control accuracy is higher, and so low price is but wide popularization and application.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is former two-position two-way solenoid valve structural representation.
Embodiment
With reference to Fig. 1, electromagnetic coil 1, spool 2 are arranged in the valve, sealing gasket 3 is arranged under the spool, spool lower end outer casing spring 4, the outer annular space of spring communicates with air-inlet cavity 5, and air-inlet cavity and outlet chamber 6 are by spool control break-make, and outlet chamber is communicated with air outlet 7.Tapped hole 11 of valve body 9 bottoms processing.11 of tapped holes have one section screw thread at oral area, and tapped hole 11 is concentric with outlet chamber 6, and diameter is 1～100mm.
Throttling needle 12 is from the tapped hole precession, and the cone tip part position of throttling needle 12 front ends faces outlet chamber 6, and the cone angle of end toper is 10～170 ° before the throttling needle 12, and point diameter is 0.8～95mm.Load onto rubber or plastic seal ring 10 that external diameter is 1～105mm in the forward annular groove of throttling needle 12, the fastening screw nut 13 that internal thread diameter is 1～100mm is loaded onto at the rear portion.The utility model utilizes the tapped hole 11 and the worm structure of throttling needle 12 to regulate the telescopic location of throttling needle, changes the area of the circular crosssection that forms between throttling needle awl point and outlet chamber with this, thereby changes the flow that flows through this valve gas.
There are regulating tank, mouth or hole in throttling needle 12 rear ends, as 1-shaped open, cross recess, delthyrium, cubic hole, hexagonal hole or plum blossom hole, when flowing through gas flow of the present utility model and reach requirement, fastening screw nut is tightened in regulating tank, mouth or hole by throttling needle 12 rear ends, so that system pressure is stabilized.
When using the utility model, when electromagnetic coil 1 energising, throttling valve core 2 is by adhesive, and move on the drive sealing gasket 3, air-inlet cavity 5 and outlet chamber 6 conductings, pressurized air enters outlet chamber 6 by suction port 8 by air-inlet cavity 5, arrives air outlet 7 by outlet chamber and the sharp formed circular crosssection of throttling needle 12 awls again, enter or discharge pneumatic system (annotate: it is the process of boosting that pressurized air enters system, and pressurized air discharge system is the step-down process) again.The power supply of disconnected power down magnetic coil 1 when the pressure in the system reaches the value that sets, then throttling valve core 2 resets downwards under the effect of the spring 4 of former spool lower end overcoat at once, drive sealing gasket 3 simultaneously and move down, air-inlet cavity 5 is closed with the passage of outlet chamber 6, and system pressure is stabilized.
Because outlet chamber 6 volumes of the present utility model are minimum, extremely faint to the impact or the hysteresis of pressure lifting control, therefore can realize precision control to system pressure.Former in addition valve is widely used, and change on this basis is very little, is convenient to operation, and is with low cost, so but wide popularization and application.
Claims (5)
1. throttle type two-position two-way solenoid valve, electromagnetic coil, spool are arranged in the valve body, under the spool sealing gasket is arranged, spool lower end outer casing spring, the outer annular space of spring communicates with air-inlet cavity, outlet chamber is communicated with the air outlet, it is characterized in that tapped hole of valve body bottom processing, the throttling needle is from the tapped hole precession, and the cone tip part position of throttling needle front end faces outlet chamber, load onto seal ring in the forward annular groove, fastening screw nut is equipped with at the rear portion.
2. throttle type two-position two-way solenoid valve according to claim 1 is characterized in that tapped hole (11) only has one section screw thread at oral area, and tapped hole (11) is concentric with outlet chamber (6), and diameter is 1～100mm.
3. throttle type two-position two-way solenoid valve according to claim 1 is characterized in that the cone angle of the preceding end toper of throttling needle (12) is 10～170 °, and point diameter is 0.8～95mm.
4. throttle type two-position two-way solenoid valve according to claim 1, it is characterized in that loading onto rubber or the plastic seal ring (10) that external diameter is 1～105mm in the forward annular groove of throttling needle (12), the fastening screw nut that internal thread diameter is 1～100mm (13) is loaded onto at the rear portion.
5. throttle type two-position two-way solenoid valve according to claim 1 is characterized in that there are regulating tank, mouth or hole in throttling needle (12) rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202940659U CN201779333U (en) | 2010-08-16 | 2010-08-16 | Throttling two-position two-way solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202940659U CN201779333U (en) | 2010-08-16 | 2010-08-16 | Throttling two-position two-way solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779333U true CN201779333U (en) | 2011-03-30 |
Family
ID=43792544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202940659U Expired - Fee Related CN201779333U (en) | 2010-08-16 | 2010-08-16 | Throttling two-position two-way solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253560A (en) * | 2020-10-28 | 2021-01-22 | 哈尔滨工程大学 | Hydraulic pressure flexible arm driving and controlling system based on hydraulic half-bridge |
| CN114110174A (en) * | 2021-10-19 | 2022-03-01 | 宁波华平智控科技股份有限公司 | Throttle solenoid valve |
-
2010
- 2010-08-16 CN CN2010202940659U patent/CN201779333U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253560A (en) * | 2020-10-28 | 2021-01-22 | 哈尔滨工程大学 | Hydraulic pressure flexible arm driving and controlling system based on hydraulic half-bridge |
| CN114110174A (en) * | 2021-10-19 | 2022-03-01 | 宁波华平智控科技股份有限公司 | Throttle solenoid valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20120816 |