CN2217149Y - Vibration rod butterfly valve - Google Patents
Vibration rod butterfly valve Download PDFInfo
- Publication number
- CN2217149Y CN2217149Y CN 94243892 CN94243892U CN2217149Y CN 2217149 Y CN2217149 Y CN 2217149Y CN 94243892 CN94243892 CN 94243892 CN 94243892 U CN94243892 U CN 94243892U CN 2217149 Y CN2217149 Y CN 2217149Y
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly valve
- groove
- transmission shaft
- valve 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 - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model relates to a butterfly valve with a swinging rod, which is an improvement to the structure of the valve handle of the prior butterfly valve. The valve handle is a swinging rod structure, a transmission axle is connected with the valve handle by a shifting fork in a step shape and the transmission axle is provided with a groove cam mechanism with a cylinder surface to enable the transmission axle to generate the angular displacement with the scope of 90 DEG in axial movement to drive the valve handle to conduct swinging or rotation. Thus when a valve plate is opened or closed, no abrasion is generated. The sealing performance is closing is good and the service life is long. The utility model is suitable for the hard sealing of a conical surface without elasticity and is served as the valve used for a gas pipeline.
Description
The utility model relates to a kind of Vibration rod butterfly valve.
Butterfly valve is widely used in industry.Existing butterfly valve valve rod in switching process mostly is the dead axle parts, therefore causes the wearing and tearing of sealing surface when valve rod rotates inevitably when valve plate, can not use non-elastic structure to seal firmly, otherwise sealability is bad.Other butterfly valve valve rods adopt movable shaft mechanism, and complex structure also needs special valve rod driving device to cooperate.
The purpose of this utility model is to disclose the butterfly valve that a kind of valve rod can be swung, and can realize that the non-resilient conical surface of valve plate, valve body seals firmly.
Task of the present utility model realizes by following technical proposal: the valve rod transmission shaft of described butterfly valve is provided with the cylinder groove, this groove is made up of spiral chute and axial groove, axial groove is located at the spiral chute upper end, the axle sleeve of this transmission shaft is provided with stop screw, in the insertion groove, constitute a cylinder grooved cam mechanism with described groove.The transmission shaft lower end is in transmission connection through shift fork and valve rod upper end, the lower end of valve rod is spherical joint, forms the universal movement supporting with valve body, and described shift fork is the ladder fork, be clamped between two supporting cylinders on the valve rod, above-mentioned transmission shaft shift fork and valve rod constitute the double-track cam mechanism of driven member swing.
Electric actuator is done axial motion to the valve rod transmission shaft and is driven, and under the shift fork cam action, the swing of valve rod upper end makes valve plate leave sealing surface, and under the effect of grooved cam mechanism, the transmission shaft half-twist drives the valve rod rotation, and valve plate is opened.The valve plate closing movement is opposite.This butterfly switch motion structure is simpler, can realize the no gap contact of the hard sealing of the non-resilient conical surface, and switching process does not have wearing and tearing, good seal performance, and long service life is as the gas pipeline valve.
Below in conjunction with drawings and Examples the utility model is specified.
Fig. 1 is the Vibration rod butterfly valve structural representation.
Fig. 2 is the transmission shaft zoomed-in view.
Butterfly valve body 4 right sides are the non-resilient sealed mouth of the conical surface among the figure, and the upper end is the stem movement transmission part, comprise transmission shaft 3, axle sleeve 6, and axle sleeve 6 is connected with valve body 4 assemblings, and valve body central authorities are valve rod 1, settle valve plate 5 on the valve rod.Valve rod 1 lower end is spherical joint 10, is bearing in 4 times cinclides of valve body, becomes the universal movement supporting.Valve rod 1 upper end and transmission shaft 3 lower end shift forks 7 are pegged graft.Shift fork 7 is the ladder fork, and intermediate location is the inclined-plane, is clamped between two cylindrical bodys 8, and cylindrical body 8 is connected with valve rod 1.When transmission shaft 3 was done axial motion, shift fork 7 played the double-track cam effect, and cylindrical body 8 and valve rod 1 are driven member, swung, and valve rod 1 is a supporting point with the lower end, becomes a fork, makes valve plate 5 leave or push to sealing surface.When transmission shaft 3 was done 90 ° of rotations, shift fork 7 drove valve rod 1 and rotates, and makes valve plate 5 open or close.
The motion of transmission shaft 3 is controlled by a groove stopper mechanism.Be provided with cylinder groove 9 on transmission shaft, be made up of spiral section and axial direction part, axial direction part is located on the spiral section, and insert in this groove an end that is located at the stop screw 2 on the axle sleeve 6, forms a cylinder grooved cam mechanism.When stop screw 2 was in the spiral section of groove 9, the axial motion of transmission shaft 3 also caused an angular displacement, and when stop screw 2 was in the axial direction part of groove 9, the root rectangular section of shift fork 7 was inserted between the cylindrical body 8, makes valve rod 1 be in locked state.
Like this, the drive unit of transmission shaft 3 only need be done simple axially driving to transmission shaft, and transmission shaft can be finished required axial and angular displacement.
Claims (2)
1, a kind of Vibration rod butterfly valve, has conical seal (contact) face, the valve rod transmission shaft that it is characterized in that described butterfly valve is provided with the cylinder groove, this groove is made up of spiral chute and axial groove, axial groove is located at the spiral chute upper end, the axle sleeve of this transmission shaft is provided with stop screw, in the insertion groove, constitute a cylinder grooved cam mechanism with described cylinder groove, described transmission shaft lower end is in transmission connection through shift fork and valve rod upper end, and the valve rod lower end is spherical joint, form the universal movement supporting with valve body, described shift fork is the ladder fork, is clamped between two supporting cylinders on the valve rod, constitutes the double-track cam mechanism of driven member swing.
2, by the described Vibration rod butterfly valve of claim 1, the sealing surface that it is characterized in that described butterfly valve is that the non-resilient conical surface seals firmly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94243892 CN2217149Y (en) | 1994-11-03 | 1994-11-03 | Vibration rod butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94243892 CN2217149Y (en) | 1994-11-03 | 1994-11-03 | Vibration rod butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2217149Y true CN2217149Y (en) | 1996-01-10 |
Family
ID=33850122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94243892 Expired - Fee Related CN2217149Y (en) | 1994-11-03 | 1994-11-03 | Vibration rod butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2217149Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598220B (en) * | 2009-07-08 | 2010-08-25 | 周永国 | High-temperature butterfly valve |
| CN102537379A (en) * | 2012-02-06 | 2012-07-04 | 安徽铜都阀门股份有限公司 | Track-torsion connecting bidirectional hard sealing butterfly valve |
-
1994
- 1994-11-03 CN CN 94243892 patent/CN2217149Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598220B (en) * | 2009-07-08 | 2010-08-25 | 周永国 | High-temperature butterfly valve |
| CN102537379A (en) * | 2012-02-06 | 2012-07-04 | 安徽铜都阀门股份有限公司 | Track-torsion connecting bidirectional hard sealing butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |