CN206268574U - A kind of pneumatic positioner valve for air bladder formula regulating valve - Google Patents
A kind of pneumatic positioner valve for air bladder formula regulating valve Download PDFInfo
- Publication number
- CN206268574U CN206268574U CN201621183755.0U CN201621183755U CN206268574U CN 206268574 U CN206268574 U CN 206268574U CN 201621183755 U CN201621183755 U CN 201621183755U CN 206268574 U CN206268574 U CN 206268574U
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- valve
- feedback
- spring
- rod
- air
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Abstract
A kind of pneumatic positioner valve for air bladder formula regulating valve, belongs to Valve controlling field.Solve the problems, such as that air bladder formula regulating valve causes that positioning is inaccurate because the frictional force between valve rod and filler is big.It is made up of bellows, lever, range spring, feedback cam fulcrum, feedback cam, swing rod, swing rod fulcrum, feedback rod, roller, feedback spring, regulation spring, baffle plate, nozzle, balance pivot, air amplifier, air bladder formula regulating valve, film air chamber, valve rod.The utility model can ensure to be accurately positioned between the displacement of valve rod and input air pressure signal of air bladder formula regulating valve.
Description
Technical field
The utility model belongs to Valve controlling field, specifically related to a kind of operated pneumatic valve for air bladder formula regulating valve
Locator.
Background technology
Air bladder formula regulating valve is the most commonly used valve, and it is mainly by valve body, valve rod, spring, filler, valve element and valve
The parts such as seat composition, because of its simple structure, cheap, easy to maintenance, is widely used in the production of work industry.Work
When making, air pressure signal is introduced by top, is acted on film, produces downward thrust.When the reaction force of spring is overcome, push away
Ovable valve stem produces displacement, so as to change the circulation area between valve element and valve seat, reaches the purpose of control flow.In order to prevent
Leakage at valve rod extraction, filler is always pressed very tight, causes the frictional force between valve rod and filler may be quite big.Additionally,
Controlled fluid is likely to quite big to the active force of valve element.Therefore, can all influence between displacement of valve rod and input air pressure signal
Positioning relation, or even valve rod is produced winding characteristic, and it is the effective measures for solving the above problems to install valve positioner additional.
Utility model content
The utility model is caused to solve air bladder formula regulating valve because the frictional force between valve rod and filler is big
A kind of inaccurate problem of positioning, there is provided pneumatic positioner valve for air bladder formula regulating valve.
A kind of pneumatic positioner valve for air bladder formula regulating valve, it include bellows, lever, range spring,
Feedback cam fulcrum, feedback cam, swing rod, swing rod fulcrum, feedback rod, roller, feedback spring, regulation spring, baffle plate, nozzle,
Balance pivot, air amplifier, air bladder formula regulating valve, film air chamber, valve rod.
The input of described bellows receives from outside gas, the output end and described thick stick of described bellows
The upper end left side connection of bar, while the upper end right side of described lever is connected with one end of described range spring, described amount
The other end of journey spring is maintained static, and described lever is hinged on described balance pivot, the lower end right side of described lever
From top to bottom it is connected with one end of described feedback spring and one end of described regulation spring successively, described regulation spring
The other end is maintained static, and described baffle plate is installed in the lower end left side of described lever, between described baffle plate and described nozzle
Certain gap is left, the described back pressure output end of nozzle is connected with the air pressure input of described air amplifier, described
The air pressure output end of air amplifier be connected with the air pressure input of described film air chamber, described air bladder formula regulation
The valve rod of valve is connected with the right-hand member of described feedback rod, and the left end of described feedback rod is connected with described feedback cam fulcrum,
Described feedback cam fulcrum is connected with described feedback cam, the outer rim of described feedback cam and the outer rim of described roller
It is in close contact, described roller is arranged on described swing rod, the upper end of described swing rod is hinged on described swing rod fulcrum,
The lower end of described swing rod is connected with the other end of described feedback spring.
Described range spring is used to adjust the range of pneumatic positioner valve, and described regulation spring is used to adjust pneumatic
The zero-bit of valve positioner, when the air pressure for making input pneumatic positioner valve is certain value, the valve rod of air bladder formula regulating valve
Start action.
Beneficial effect：
After using above-mentioned utility model content, the displacement of valve rod and input air pressure of air bladder formula regulating valve can be effectively solved
Positioning between signal is forbidden, valve rod is produced the problem of winding characteristic, reaches the purpose of preferably control flow.
Brief description of the drawings
Fig. 1 is that a kind of structure of pneumatic positioner valve for air bladder formula regulating valve described in the utility model is shown
It is intended to
Specific embodiment
The utility model is elaborated below according to accompanying drawing 1 preferred embodiment.
Specific embodiment：Referring to accompanying drawing 1, a kind of pneumatic positioner valve for air bladder formula regulating valve, it is wrapped
Include bellows 1, lever 2, range spring 3, feedback cam fulcrum 4, feedback cam 5, swing rod 6, swing rod fulcrum 7, feedback rod 8, rolling
Wheel 9, feedback spring 10, regulation spring 11, baffle plate 12, nozzle 13, balance pivot 14, air amplifier 15, air bladder formula are adjusted
Section valve 16, film air chamber 16-1, valve rod 16-2.
The input of described bellows 1 receives from outside gas, the output end of described bellows 1 with it is described
The upper end left side connection of lever 2, while the upper end right side of described lever 2 is connected with one end of described range spring 3, it is described
The other end of range spring 3 maintain static, described lever 2 is hinged on described balance pivot 14, described lever 2
Lower end right side is from top to bottom connected with one end of described feedback spring 10 and one end of described regulation spring 11 successively, described
The other end of regulation spring 11 maintain static, described baffle plate 12, described baffle plate are installed in the lower end left side of described lever 2
Leave certain gap between 12 and described nozzle 13, the back pressure output end and described air amplifier of described nozzle 13
15 air pressure input connection, the air pressure output end of described air amplifier 15 is defeated with the air pressure of described film air chamber 16-1
Enter end connection, the valve rod 16-2 of described air bladder formula regulating valve 16 is connected with the right-hand member of described feedback rod 8, and described is anti-
The left end for presenting bar 8 is connected with described feedback cam fulcrum 4, and described feedback cam fulcrum 4 connects with described feedback cam 5
Connect, the described outer rim of feedback cam 5 is in close contact with the outer rim of described roller 9, and described roller 9 is arranged on described pendulum
On bar 6, the upper end of described swing rod 6 is hinged on described swing rod fulcrum 7, the lower end of described swing rod 6 and described feedback
The other end connection of spring 10.
Described range spring 3 is used to adjust the range of pneumatic positioner valve, and described regulation spring 11 is used to adjust
The zero-bit of pneumatic positioner valve, when the air pressure for making input pneumatic positioner valve is certain value, air bladder formula regulating valve
Valve rod starts action.
Operation principle is as follows：
In the described bellows 1 of air pressure P1 feedings, when air pressure signal P1 increases, described bellows 1 is acted, and is made described
Lever 2 deflected clockwise around described balance pivot 14, described baffle plate 12 is near described nozzle 13, described nozzle 13
Back pressure amplify through described air amplifier 15 after, output pressure P2 and the air bladder formula regulating valve 16 described in sending into it is thin
Film air chamber 16-1, moves down valve rod 16-2, and drives described feedback rod 8 clockwise around described feedback cam fulcrum 4
Rotate, described feedback cam 5 is also and then rotated clockwise, and described swing rod 6 is made around described by described roller 9
Swing rod fulcrum 7 rotate counterclockwise, and described feedback spring 10 is stretched, when the lever described in described feedback spring 10 pairs
When the power that 2 pulling force is acted on described bellows 1 with air pressure P1 reaches equalising torque, pneumatic positioner valve reaches balance
State.Now, certain air pressure P1 then corresponds to the valve location of certain air bladder formula regulating valve.
Present embodiment is the exemplary illustration to this patent, does not limit its protection domain, people in the art
Member can also be changed to its part, as long as no the Spirit Essence beyond this patent, all in the protection domain of this patent.
Claims (3)
1. a kind of pneumatic positioner valve for air bladder formula regulating valve, it is characterised in that it includes bellows（1）, thick stick
Bar（2）, range spring（3）, feedback cam fulcrum（4）, feedback cam（5）, swing rod（6）, swing rod fulcrum（7）, feedback rod（8）、
Roller（9）, feedback spring（10）, regulation spring（11）, baffle plate（12）, nozzle（13）, balance pivot（14）, air amplifier
（15）, air bladder formula regulating valve（16）, film air chamber（16-1）, valve rod（16-2）.
2. a kind of pneumatic positioner valve for air bladder formula regulating valve according to claim 1, it is characterised in that
Described bellows（1）Input receive from outside gas, described bellows（1）Output end and described lever
（2）Upper end left side connection, while described lever（2）Upper end right side and described range spring（3）One end connection, institute
The range spring stated（3）The other end maintain static, described lever（2）It is hinged on described balance pivot（14）On, it is described
Lever（2）Lower end right side from top to bottom successively with described feedback spring（10）One end and described regulation spring（11）
One end connection, described regulation spring（11）The other end maintain static, described lever（2）Lower end left side install described
Baffle plate（12）, described baffle plate（12）With described nozzle（13）Between leave certain gap, described nozzle（13）'s
Back pressure output end and described air amplifier（15）Air pressure input connection, described air amplifier（15）Air pressure it is defeated
Go out end and described film air chamber（16-1）Air pressure input connection, described air bladder formula regulating valve（16）Valve rod
（16-2）With described feedback rod（8）Right-hand member connection, described feedback rod（8）Left end and described feedback cam fulcrum
（4）Connection, described feedback cam fulcrum（4）With described feedback cam（5）Connection, described feedback cam（5）Outer rim
With described roller（9）Outer rim be in close contact, described roller（9）Installed in described swing rod（6）On, described swing rod
（6）Upper end be hinged on described swing rod fulcrum（7）On, described swing rod（6）Lower end and described feedback spring（10）'s
The other end is connected.
3. a kind of pneumatic positioner valve for air bladder formula regulating valve according to claim 1 and 2, its feature exists
In described range spring（3）Range for adjusting pneumatic positioner valve, described regulation spring（11）For adjusting gas
The zero-bit of valve positioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183755.0U CN206268574U (en) | 2016-10-28 | 2016-10-28 | A kind of pneumatic positioner valve for air bladder formula regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183755.0U CN206268574U (en) | 2016-10-28 | 2016-10-28 | A kind of pneumatic positioner valve for air bladder formula regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268574U true CN206268574U (en) | 2017-06-20 |
Family
ID=59039287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621183755.0U Expired - Fee Related CN206268574U (en) | 2016-10-28 | 2016-10-28 | A kind of pneumatic positioner valve for air bladder formula regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268574U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641327A (en) * | 2016-10-28 | 2017-05-10 | 哈尔滨理工大学 | Pneumatic valve positioner for pneumatic diaphragm control valve and positioning method |
| CN108051152A (en) * | 2017-11-09 | 2018-05-18 | 马超 | A kind of automatic leakage of monitoring device for pipeline |
-
2016
- 2016-10-28 CN CN201621183755.0U patent/CN206268574U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641327A (en) * | 2016-10-28 | 2017-05-10 | 哈尔滨理工大学 | Pneumatic valve positioner for pneumatic diaphragm control valve and positioning method |
| CN108051152A (en) * | 2017-11-09 | 2018-05-18 | 马超 | A kind of automatic leakage of monitoring device for pipeline |
| CN108051152B (en) * | 2017-11-09 | 2019-12-06 | 重庆钢锚科技有限公司 | Automatic monitoring alarm device for pipeline leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20171028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |