CN202138541U - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN202138541U CN202138541U CN 201120041496 CN201120041496U CN202138541U CN 202138541 U CN202138541 U CN 202138541U CN 201120041496 CN201120041496 CN 201120041496 CN 201120041496 U CN201120041496 U CN 201120041496U CN 202138541 U CN202138541 U CN 202138541U
- Authority
- CN
- China
- Prior art keywords
- stop valve
- valve
- motor
- ball valve
- compensation
- 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.)
- Expired - Lifetime
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- Mechanically-Actuated Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The utility model relates to a stop valve which is used for cutting off oil supply and oil transportation of a fuel system of an airplane. The stop valve comprises a motor1 and a ball valve 4 and is characterized by further comprising a compensation universal connecting rod 2; one end of the compensation universal connecting rod 2 is connected with an output shaft of the motor 1; and the other end of the compensation universal connecting rod 2 is connected with a ball valve spline. Due to the stop valve, the design of system pipelines can be completely get rid of the limit brought by the installation of the stop valve, therefore, the design cost is greatly lowered.
Description
Technical field
The utility model relates to a kind of shutoff device, and this cut-out is used for fuel feeding, the oil transportation of aircraft fuel system and cuts off.
Background technology
Fuel cut (FC) is used for the cut-out of oil stream in the pipeline, in fuel oil system, adopts in a large number.Usually carry out terminal ball valve or plate valve by motor-driven, realize opening and closing motion.For the ease of safeguarding, be installed in usually on the interface of fuel tank, the motor part is outside fuel tank, and actuating unit is in fuel tank.Receive the restriction of the length of shutoff valve own, ball valve bonded assembly conduit will be arranged in the near interface of fuel tank usually, and catheter length is very long; Increased system weight; According to design experiences, nervous because of the space, near the difficulty that conduit is arranged into the ball valve is very big simultaneously; Therefore, that the design cost of being paid is installed is very high for a large amount of shutoff valve.
Summary of the invention
The purpose of the utility model: a kind of shutoff valve that oil stream cuts off in the fuel line that is used for is provided.
The technical scheme of the utility model:
A kind of shutoff valve comprises motor 1, ball valve 4, it is characterized in that, said shutoff valve also comprises compensation Universal linking lever 2, and said compensation Universal linking lever 2 one ends are connected with motor 1 output shaft, and the other end is connected with ball valve spline 3.
The advantage of the utility model: this shutoff valve can make the system pipeline design thoroughly break away from because of shutoff valve the restriction that brings is installed, and greatly reduces design cost.
Description of drawings:
Fig. 1 is the structural representation of the utility model one preferred embodiments;
Fig. 2 is the scheme of installation of the utility model one preferred embodiments.
Wherein, 1 motor, 2 compensation Universal linking levers, 3 ball valve splines, 4 ball valves.
The specific embodiment: the utility model is described in detail below in conjunction with accompanying drawing.See also Fig. 1 and Fig. 2.
A kind of shutoff valve comprises motor 1, ball valve 4, it is characterized in that, said shutoff valve also comprises compensation Universal linking lever 2, and said compensation Universal linking lever 2 one ends are connected with motor 1 output shaft, and the other end is connected with ball valve spline 3.
Fuel cut (FC) is shown in an open position usually.When product needed was closed, with the specific corner connection direct supply that draws of electric coupler, DC machine rotated according to designing requirement; Motor 1 output shaft drives compensation Universal linking lever 2 and rotates; Thereby order about 90 ° of spherical valve clickwises, close fuel flow path, ball valve 4 inner seal ring assemblies are close to sphere under the effect of disk spring elastic force; Guarantee ring assembly and ball face sealing, thus leak tightness when guaranteeing to close the oil circuit state.
When product need be opened, with the designated pin energising of electric coupler, to carry out and open order, motor 1 output shaft rotates through compensation Universal linking lever 2 and orders about 90 ° of spherical valve left-hand revolutions, makes fuel gallery and the connection of flange passage on the ball valve 4, and product is opened.
This product motor 1 is installed on the outer wing back rest of fuel tank, guarantees not oil-feed tank of cable, and need not to discharge the fuel oil in the fuel tank when changing motor drive mechanism.
Claims (1)
1. a shutoff valve comprises motor [1], ball valve [4], it is characterized in that, said shutoff valve also comprises compensation Universal linking lever [2], and said compensation Universal linking lever [2] one ends are connected with motor [1] output shaft, and the other end is connected with ball valve spline [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120041496 CN202138541U (en) | 2011-02-17 | 2011-02-17 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120041496 CN202138541U (en) | 2011-02-17 | 2011-02-17 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202138541U true CN202138541U (en) | 2012-02-08 |
Family
ID=45549615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120041496 Expired - Lifetime CN202138541U (en) | 2011-02-17 | 2011-02-17 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202138541U (en) |
-
2011
- 2011-02-17 CN CN 201120041496 patent/CN202138541U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |