CN201696641U - Pneumatic actuation safety valve - Google Patents
Pneumatic actuation safety valve Download PDFInfo
- Publication number
- CN201696641U CN201696641U CN201020208078XU CN201020208078U CN201696641U CN 201696641 U CN201696641 U CN 201696641U CN 201020208078X U CN201020208078X U CN 201020208078XU CN 201020208078 U CN201020208078 U CN 201020208078U CN 201696641 U CN201696641 U CN 201696641U
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- CN
- China
- Prior art keywords
- valve
- rod
- pneumatic
- pneumatic actuator
- push rod
- 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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Abstract
The utility model provides a pneumatic actuation safety valve, which comprises a valve body and a pneumatic actuator, wherein the valve body is provided with a valve port and a valve plate, the upper end of the valve plate is fixedly connected with a valve rod, the valve rod is connected with the pneumatic actuator, the pneumatic actuator is internally provided with a valve rod cap, the upper end of the valve rod is connected with the valve rod cap through a thread, the upper end of the valve rod cap is connected with a top rod without transmission, and the upper end of the top rod is extended to outside of the pneumatic actuator. When adjusting the stroke, no equipment is needed to open, the top rod is only twisted to drive the valve rod to rotate, the top rod drives the valve rod cap to rotate, and then the purpose of adjusting the magnitude of the stroke can be realized.
Description
Technical field
The utility model relates to a kind of safety valve, especially a kind of pneumatic safety valve of actuating.
Background technique
The existing pneumatic safety valve of actuating, equipment need be opened and just stroke adjustment can be carried out, thereby bring great not convenient property for assembling and use, and pneumatic upper and lower covers structure of actuating the actuator of safety valve commonly used is that to adopt collar to add back-up ring fixedly connected, maintainalbility is very poor, and processing cost height, assembling are also inconvenient.
The model utility content
The technical problems to be solved in the utility model provides a kind of pneumatic safety valve of actuating that the equipment of opening can carry out stroke adjustment that need not.
In order to solve the problems of the technologies described above, the pneumatic safety valve of actuating that the utility model provides, comprise valve body and pneumatic actuator, be provided with relative valve port and valve plate in the described valve body, the upper end of described valve plate is fixedly connected with valve rod, and described valve rod is connected with described pneumatic actuator, be provided with valve thimble in the described pneumatic actuator, described valve rod upper end is connected with described valve thimble by screw thread, and described valve thimble upper end and push rod do not have and be rotationally connected, and the upper end of described push rod extends to the outside of pneumatic actuator.When adjusting stroke, need not to open equipment, only need screw push rod, push rod drives valve thimble and rotates, and valve rod moves up and down along valve thimble, just reaches the purpose of adjusting the stroke size.
Preferably, described valve thimble comprises cap head and cap bar, and described cap bar is provided with the axial screw thread hole and matches with the outside thread of described valve rod, and described cap head is fixedlyed connected with described cap bar, and described cap head top is connected with described push rod.
Preferably, described pneumatic actuator comprises loam cake, cylinder barrel and lower cover, and described loam cake and described lower cover all are fixedly connected on the described cylinder barrel, covers on described and is provided with suction port, be provided with the piston that moves up and down along inner wall of cylinder in the described cylinder barrel, described piston is connected with described push rod.
Further, the described cap head outside is fixedly connected with upper spring seat, covers under described and is fixed with lower spring cup, and spring is fixedly mounted between described upper spring seat and the described lower spring cup.
Further, cover on described and also be provided with one-way valve.Air inlet was used when this one-way valve can be used as service valve or pressure testing.
Further, described loam cake and described lower cover all are fixedly connected on the described cylinder barrel by screw, and processing technology is simple, and is easy to assembly, and cost is low.
The pneumatic safety valve of actuating of the present utility model has changed the situation that original needs are opened equipment ability adjustment stroke, only needs to regulate the size that push rod just can arbitrarily be adjusted stroke.And valve thimble adopts parts to connect processing, good manufacturability, precision height.
Description of drawings
Fig. 1 is an erection drawing of the present utility model.
Fig. 2 is the half sectional view of this practical valve thimble.
Embodiment
As depicted in figs. 1 and 2, the pneumatic safety valve of actuating of the present utility model, comprise valve body 16 and pneumatic actuator, be provided with relative valve port and valve plate 15 in the valve body 16, the upper end of valve plate 15 is fixedly connected with valve rod 6, valve rod 6 is connected with pneumatic actuator, be provided with valve thimble 5 in the pneumatic actuator, valve rod 6 upper ends are connected with valve thimble 5 by screw thread, and valve thimble 5 upper ends and push rod 1 nothing are rotationally connected, and the upper end of push rod 1 extends to the outside of pneumatic actuator, valve thimble 5 comprises cap head 18 and cap bar 19, cap bar 19 is provided with the axial screw thread hole and matches with the outside thread of valve rod 6, and cap head 18 is fixedlyed connected with cap bar 19, and cap head 18 tops are connected with push rod 1.Here valve thimble 5 upper ends and push rod 1 nothing are rotationally connected, and just refer to the boss that a square-section is arranged at cap head 18 tops, and the groove of a square-section of matching with boss is arranged at push rod 1 bottom, and when rotating push rod 1, valve thimble 5 rotates with push rod 1.During adjustment stroke, only need screw the push rod 1 that is exposed, push rod 1 drives valve thimble 5 and rotates, and valve rod 6 moves up and down along valve thimble 5, just reaches the purpose of adjusting the stroke size.
As shown in Figure 1, this pneumatic actuator comprises loam cake 3, cylinder barrel 11 and lower cover 12, and loam cake 3 and lower cover 12 all are fixedly connected on the cylinder barrel 11 by screw, and loam cake 3 is provided with suction port 17, be provided with the piston 10 that moves up and down along cylinder barrel 11 inwalls in the cylinder barrel 11, piston 10 is connected with push rod 1.Cap head 18 outsides are fixedly connected with upper spring seat 8, are fixedly connected with lower spring cup 9 on the lower cover 12, and spring 7 is fixedly mounted between upper spring seat 8 and the lower spring cup 9.
As shown in Figure 1, also have a piston cap 4 in the cylinder barrel 11, between piston 10 and push rod 1, piston cap 4 upper ends are stuck on the piston 10, and the cavity between piston 10 and the loam cake 3 is sealed.Valve gap 13 also is housed on the valve body 1, also is provided with an one-way valve 14 on the valve gap 13, be used for the gas in the pneumatic actuator is discharged.
As shown in Figure 2, cap head 18 and cap bar 19 are fastenedly connected after the processing separately again, and it is good that this kind parts connect technology capability, and precision can be guaranteed.
The pneumatic safety valve of actuating of the present utility model, during proper functioning, suction port 17 connects source of the gas, and gas enters from suction port 17, promoting piston 10 moves downward, piston 10 drives push rod 1, and push rod 1 promotes valve thimble 5, and valve thimble 5 promotes valve rod 6, valve rod 6 drives valve plate 15 and moves downward, valve plate 15 is closed valve port, and at this moment, spring 7 is compressed.When suction port 17 was died suddenly, spring 7 restored to the original state, and drove valve thimble 5, valve rod 6, valve plate 15 and moved upward, and valve plate 15 is opened valve port, carries out exhaust pressure relief, avoids the generation of accident.One-way valve 2 serves as service valve here on the one hand, when suction port 17 is stopped the supple of gas or steam suddenly, can pass through one-way valve 2 air inlets, guarantees safety, and on the other hand, one-way valve 2 can be done pressure testing and use.
The pneumatic safety valve of actuating of the present utility model, need not to open equipment, only need screw push rod, just can arbitrarily adjust the size of stroke, and valve thimble adopts the cap head to be connected processing with the cap rod unit, the precision height, the upper and lower covers structure adopts screw to be fixed on the cylinder barrel, and processing technology is simple, and is easy to assembly, maintainalbility is good, and cost is low.
More than the utility model has been carried out exemplary introduction, protection domain of the present utility model is as the criterion with claim.
Claims (6)
1. pneumatic safety valve of actuating, comprise valve body (16) and pneumatic actuator, be provided with relative valve port and valve plate (15) in the described valve body, the upper end of described valve plate (15) is fixedly connected with valve rod (6), described valve rod (6) is connected with described pneumatic actuator, it is characterized in that: be provided with valve thimble (5) in the described pneumatic actuator, described valve rod (6) upper end is connected with described valve thimble (5) by screw thread, described valve thimble (5) upper end is rotationally connected with described push rod (1) nothing, and the upper end of described push rod (1) extends to the outside of pneumatic actuator.
2. the pneumatic safety valve of actuating according to claim 1, it is characterized in that: described valve thimble (5) comprises cap head (18) and cap bar (19), described cap bar (19) is provided with the axial screw thread hole and matches with the outside thread of described valve rod (6), described cap head (18) is fixedlyed connected with described cap bar (19), and described cap head (18) top is connected with described push rod (1).
3. the pneumatic safety valve of actuating according to claim 1, it is characterized in that: described pneumatic actuator comprises loam cake (3), cylinder barrel (11) and lower cover (12), described loam cake (3) and described lower cover (12) all are fixedly connected on the described cylinder barrel (11), described loam cake (3) is provided with suction port (17), be provided with the piston (10) that moves up and down along cylinder barrel (11) inwall in the described cylinder barrel (11), described piston (10) is connected with described push rod (1).
4. the pneumatic safety valve of actuating according to claim 3, it is characterized in that: described cap head (18) outside is fixedly connected with upper spring seat (8), be fixed with lower spring cup (9) on the described lower cover (12), spring (7) is fixedly mounted between described upper spring seat (8) and the described lower spring cup (9).
5. the pneumatic safety valve of actuating according to claim 3 is characterized in that: also be provided with one-way valve (2) on the described loam cake (3).
6. the pneumatic safety valve of actuating according to claim 3 is characterized in that: described loam cake (3) and described lower cover (12) all are fixedly connected on the described cylinder barrel (11) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020208078XU CN201696641U (en) | 2010-05-27 | 2010-05-27 | Pneumatic actuation safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020208078XU CN201696641U (en) | 2010-05-27 | 2010-05-27 | Pneumatic actuation safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696641U true CN201696641U (en) | 2011-01-05 |
Family
ID=43397883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020208078XU Expired - Lifetime CN201696641U (en) | 2010-05-27 | 2010-05-27 | Pneumatic actuation safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696641U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019268A (en) * | 2014-06-13 | 2014-09-03 | 江南阀门有限公司 | Hydrodynamic executing mechanism |
| CN106151656A (en) * | 2016-08-17 | 2016-11-23 | 亚新铸造（苏州）有限公司 | A kind of pneumatic controller of relief valve |
| CN106151657A (en) * | 2016-08-17 | 2016-11-23 | 亚新铸造（苏州）有限公司 | The pneumatic toucher quickly opened for relief valve and close |
-
2010
- 2010-05-27 CN CN201020208078XU patent/CN201696641U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019268A (en) * | 2014-06-13 | 2014-09-03 | 江南阀门有限公司 | Hydrodynamic executing mechanism |
| CN106151656A (en) * | 2016-08-17 | 2016-11-23 | 亚新铸造（苏州）有限公司 | A kind of pneumatic controller of relief valve |
| CN106151657A (en) * | 2016-08-17 | 2016-11-23 | 亚新铸造（苏州）有限公司 | The pneumatic toucher quickly opened for relief valve and close |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201805 Anting Jiading District Town Park Road, No. 2, building 338, No. Patentee after: Shanghai superior automation equipment Limited by Share Ltd Address before: 201805 Anting Jiading District Town Park Road, No. 2, building 338, No. Patentee before: Shanghai Genie-Robot Automatic Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |
|
| CX01 | Expiry of patent term |