CN104006172A - Adjustable butterfly valve plate structure - Google Patents
Adjustable butterfly valve plate structure Download PDFInfo
- Publication number
- CN104006172A CN104006172A CN201310055808.5A CN201310055808A CN104006172A CN 104006172 A CN104006172 A CN 104006172A CN 201310055808 A CN201310055808 A CN 201310055808A CN 104006172 A CN104006172 A CN 104006172A
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly valve
- valve plate
- valve rod
- end cap
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an adjustable butterfly valve plate structure. The adjustable butterfly valve plate structure is arranged at the lower end of the valve rod of a butterfly valve. The butterfly valve comprises a valve body, the valve rod, a valve plate and an end cover; the end cover at the lower end of the valve rod is fixedly connected at the bottom end of the valve body; the inside of the cavity between the lower end of the valve rod and the end cover is provided with a plane bearing and a partition board from top to bottom; the end cover is provided with a screw penetrating the end cover; the upper end of the screw abuts against the lower end surface of the partition board. According to the adjustable butterfly valve plate structure, the sealing operating torque is small, the position adjustment of the valve plate can be convenient and rapid, and the butterfly valve can obtain good working stability.
Description
Technical field
The present invention relates to a kind of butterfly valve plate position adjustment structure.
Background technique
Butterfly valve is the sealing that guarantees butterfly valve that coordinates with valve seat by valve plate, by rotation valve rod, thereby rotates with the valve plate on ovable valve stem, thereby realizes the unlatching of butterfly valve or close.Because valve plate, valve rod weight are heavier, and valve rod lower end is directly bearing on the end cap of its lower end, therefore, needs larger seal operation moment of torsion when butterfly valve cuts out; On the other hand, in order to guarantee the sealing of valve plate and valve seat, need make valve plate coaxial as far as possible with the central axis of valve seat.In the assembling or using process of butterfly valve, for being as far as possible makes valve plate coaxial as far as possible with the central axis of valve seat, between the end cap of valve body bottom and valve rod lower end surface, high energy is adjusted pad, by adjustment, adjust the thickness of pad, raise or reduce valve rod, thereby adjust the position that is fixedly connected on valve plate on valve rod, this butterfly valve plate is adjusted structure can play the effect of adjusting valve plate position, but each adjustment need be pulled down end cap rear adjustment and be adjusted pad, because the positional error at valve plate and seal ring center is difficult to measure, therefore, adjustment is difficult to hold, sometimes need repeatedly to adjust just and can be effective, therefore, adjust more time-consuming, bothersome.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of seal operation moment of torsion little, valve plate position is easy to adjust, adjustable butterfly valve plate structure efficiently.
The present invention is achieved through the following technical solutions technical goal.
Adjustable butterfly valve plate structure, it is arranged on the lower end of butterfly valve valve rod; Described butterfly valve comprises valve body, valve rod, valve plate and end cap; The end cap of described valve rod lower end is fixedly connected on the bottom of valve body; Its improvements are: in the cavity between described valve rod lower end and end cap, be provided with plane bearing, dividing plate from top to bottom; Described end cap is provided with the screw that runs through end cap; The upper end of described screw withstands on the lower end surface of dividing plate.
The optimized project of such scheme is: described screw central axis is coaxial with valve rod central axis.
The further optimized project of such scheme is: stretch out suit cap on the screw of end cap.
The present invention compared with prior art, has following good effect:
1. valve rod lower end is bearing on plane bearing, and the seal operation moment of torsion that valve plate sealing needs is little.
2. while needing to adjust, without pulling down end cap, as long as rotating screw, just can raise or reduce valve rod, thereby adjust the position be fixedly connected on valve plate on valve rod, therefore adjust quick and easyly, and can adjust on limit, limit is observed valve plate and is coordinated situation with seal ring, therefore than being easier to, by adjustment, makes valve plate and seal ring reach the reasonable situation that coordinates.
3. stretch out suit cap on the screw of end cap, after valve plate position is adjusted, by and cap can prevent screw loosening, guaranteed like this stability of butterfly valve work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments below.
Adjustable butterfly valve plate structure shown in the drawings, it is arranged on the lower end of butterfly valve valve rod 6; Butterfly valve comprises valve body 4, valve rod 6, valve plate 5 and end cap 3; The end cap 3 of valve rod 6 lower ends is fixedly connected on the bottom of valve body 4; In cavity between valve rod 6 lower ends and end cap 3, be provided with plane bearing 8, dividing plate 7 from top to bottom; End cap 3 is provided with the screw 1 that runs through end cap 3, and in the present embodiment, screw 1 central axis is coaxial with valve rod 6 central axis, stretches out suit cap 2 on the screw 1 of end cap 3; The upper end of screw 1 withstands on the lower end surface of dividing plate 7.
Claims (3)
1. an adjustable butterfly valve plate structure, it is arranged on the lower end of butterfly valve valve rod (6); Described butterfly valve comprises valve body (4), valve rod (6), valve plate (5) and end cap (3); The end cap (3) of described valve rod (6) lower end is fixedly connected on the bottom of valve body (4); It is characterized in that: in the cavity between described valve rod (6) lower end and end cap (3), be provided with plane bearing (8), dividing plate (7) from top to bottom; Described end cap (3) is provided with the screw (1) that runs through end cap (3); The upper end of described screw (1) withstands on the lower end surface of dividing plate (7).
2. adjustable butterfly valve plate structure according to claim 1, is characterized in that: described screw (1) central axis is coaxial with valve rod (6) central axis.
3. adjustable butterfly valve plate structure according to claim 1 and 2, is characterized in that: the upper suit of screw (1) the cap (2) that stretch out end cap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310055808.5A CN104006172A (en) | 2013-02-21 | 2013-02-21 | Adjustable butterfly valve plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310055808.5A CN104006172A (en) | 2013-02-21 | 2013-02-21 | Adjustable butterfly valve plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104006172A true CN104006172A (en) | 2014-08-27 |
Family
ID=51366979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310055808.5A Pending CN104006172A (en) | 2013-02-21 | 2013-02-21 | Adjustable butterfly valve plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104006172A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987181A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Conveniently-adjusted three-eccentric-center butterfly valve |
-
2013
- 2013-02-21 CN CN201310055808.5A patent/CN104006172A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987181A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Conveniently-adjusted three-eccentric-center butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140827 |