CN201110387Y - Upper loading brake type butterfly valve - Google Patents
Upper loading brake type butterfly valve Download PDFInfo
- Publication number
- CN201110387Y CN201110387Y CNU2007200408779U CN200720040877U CN201110387Y CN 201110387 Y CN201110387 Y CN 201110387Y CN U2007200408779 U CNU2007200408779 U CN U2007200408779U CN 200720040877 U CN200720040877 U CN 200720040877U CN 201110387 Y CN201110387 Y CN 201110387Y
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- CN
- China
- Prior art keywords
- valve
- butterfly
- valve rod
- rod
- valve body
- 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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Abstract
The utility model relates to an overhead filling brake-typed butterfly valve, which comprises a valve lid, a valve body, a valve seat, a valve rod, a butterfly board and a valve rod driving device, wherein the valve seat is positioned on the valve body along the tube dielectric flow direction, the valve rod is fixedly connected with the butterfly board, the valve lid is sleeved on the exterior of the valve rod and is fixedly connected with the valve body along the valve rod shaft direction, the valve seat and the valve body can be detachably fixed and connected, a usable valve rod, and the butterfly board and a through-hole passed by the valve seat are opened on the axial valve rod. The utility model has the advantages that when the butterfly valve needs maintenance, the butterfly valve needn't be detached and can be fetched together with the valve rod, the butterfly board and the valve seat out of the cavity of the valve body under the least time for opening the valve lid to restore or exchange the butterfly seal ring, then the valve lid seal hole is covered to realize that the valve can do normally operation of the tube system in the maintaining period and enable the benefit loss occurred by valve maintenance to reduce into the minimum degree.
Description
Technical field:
The utility model relates to a kind of valve, relates in particular to a kind of dress lock formula butterfly valve of going up.
Background technique:
As everyone knows, butterfly valve is a kind of valve commonly used, mainly cuts off on pipeline, and throttling distributes and change media flow direction usefulness, has switch advantage fast.The butterfly valve of prior art comprises valve body, valve seat, valve rod, butterfly plate, valve gap etc., valve gap is fixedlyed connected with valve body along pipeline medium circulating direction (valve body is axial), valve rod is connected with the valve body axial restraint perpendicular to the pipeline medium circulating direction, radially be rotationally connected, between valve rod and valve body, be provided with packing seal, such structure makes butterfly valve directly not carry out dismounting and maintenance to parts such as butterfly plate and valve seats on pipeline, and need transport manufacturer's maintenance back, influences the normal operation of pipe-line system.In addition, axially and radially there are certain offset in the valve rod of the butterfly valve of prior art and butterfly plate, its objective is that the sealing surface in order to make butterfly plate sphere or taper separates rapidly when opening and closing, to alleviate butterfly plate and sealing surface of seat friction torque force, but butterfly plate fails to separate with valve seat opening and closing 0～10 ° of moment all the time, still is in the sliding friction state.Therefore the butterfly valve of prior art also exists keying moment friction moment of torsion big, near the shortcoming that easy scratch of sealing surface and damage are leaked close valve rod both sides.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of can directly dismounting and maintenance on pipeline, do not influence the dress lock formula that the goes up butterfly valve of the normal operation of pipe-line system.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: on adorn lock formula butterfly valve, comprise valve gap, valve body, valve seat, valve rod, butterfly plate and valve rod driving device, valve seat is arranged on the valve body along the pipeline medium circulating direction, valve rod is fixedlyed connected with butterfly plate, described valve gap is set in the outside of valve rod, to fixedlying connected with valve body, valve seat is detachably fixedlyed connected with valve body along stem shaft, and valve body axially offers the through hole that valve rod, butterfly plate and valve seat are passed through valve rod.
As further improvement, the sealing surface of described butterfly plate and valve seat is the oblique cone oval structure.
The beneficial effects of the utility model: because valve body axially offers the through hole that valve rod, butterfly plate and valve seat are passed through at valve rod, when needing repairing, need not pull down from pipeline, few time of only use opens valve gap and just can take out from body cavity together with valve rod, butterfly plate and valve seat and repair or change the butterfly plate seal ring, it is suitable for reading then to cover valve bonnet seal, can realize that valve can not influence the normal operation of pipe-line system in the maintenance period, the benefit loss that the maintenance valve is caused is reduced to minimum degree.In addition, owing to adopted a two eccentric and oval sealing configuration (also claiming three eccentric structures) of a special oblique cone, valve body and butterfly plate sealing surface are opened and closed throw off the angle of friction of angle, realize that butterfly plate promptly separates at unlatching moment sealing surface, closes the effect that contact promptly seals greater than seal face materials.This sealing configuration has alleviated butterfly valve greatly and has opened and closed moment friction torque force, has prolonged working life, has reached to open and close purpose easily.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the I portion enlarged view of Fig. 1;
Fig. 3 is the structural representation of butterfly plate.
Embodiment:
Below in conjunction with the drawings and specific embodiments the utility model is further described:
As Figure 1-3, last dress lock formula butterfly valve comprises valve gap 15, valve body 5, valve seat 11, valve rod 9, butterfly plate 10 and valve rod driving device 31, and valve seat 11 is arranged on the valve body 5 along the pipeline medium circulating direction, valve seat 11 is detachably fixedlyed connected with valve body 5, promptly with pressing plate or screw on valve body 5.Valve rod 9 is fixedlyed connected with butterfly plate 10, and described valve gap 15 is set in the outside of valve rod 9, axially fixedlys connected the through hole 14 that valve body 5 can make valve rod 9, butterfly plate 10 and valve seat 11 pass through axially offering of valve rod 9 with valve body 5 along valve rod 9.On butterfly plate 10, be provided with butterfly plate seal ring 7, fixing by pressing plate 8, between valve gap 15 and valve rod 9, be provided with filler 17, support 18 is fixedlyed connected with valve gap 15 with Gland 19.
The sealing surface of butterfly plate 10 and valve seat 11 is the oblique cone oval structure; The slenderness ratio minor axis of described ellipse long 4～8mm, preferably 6mm; The maximum oblique angle α of described oblique cone is 7 degree～11 degree, preferably 9 degree.
Claims (4)
1. go up dress lock formula butterfly valve, comprise valve gap (15), valve body (5), valve seat (11), valve rod (9), butterfly plate (10) and valve rod driving device (31), valve seat (11) is arranged on the valve body (5) along the pipeline medium circulating direction, valve rod (9) is fixedlyed connected with butterfly plate (10), it is characterized in that: described valve gap (15) is set in the outside of valve rod (9), axially fixedly connected along valve rod (9) with valve body (5), valve seat (11) is detachably fixedlyed connected with valve body (5), and valve body (5) can make valve rod (9) axially offering of valve rod (9), the through hole (14) that butterfly plate (10) and valve seat (11) pass through.
2. the dress lock formula butterfly valve of going up according to claim 1, it is characterized in that: the sealing surface of butterfly plate (10) and valve seat (11) is the oblique cone oval structure.
3. the dress lock formula butterfly valve of going up according to claim 2 is characterized in that: the long 4～8mm of the slenderness ratio minor axis of described ellipse.
4. according to claim 2 or the 3 described dress lock formula butterfly valves of going up, it is characterized in that: the maximum oblique angle α of described oblique cone is 7 degree～11 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200408779U CN201110387Y (en) | 2007-07-19 | 2007-07-19 | Upper loading brake type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200408779U CN201110387Y (en) | 2007-07-19 | 2007-07-19 | Upper loading brake type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110387Y true CN201110387Y (en) | 2008-09-03 |
Family
ID=39894918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200408779U Expired - Fee Related CN201110387Y (en) | 2007-07-19 | 2007-07-19 | Upper loading brake type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110387Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765283A (en) * | 2020-07-07 | 2020-10-13 | 北京瑞拓江南自控设备有限公司 | Top-mounted butterfly valve |
| CN112879572A (en) * | 2021-01-28 | 2021-06-01 | 浙江中信阀门有限公司 | Compact upper assembling type detachable online maintenance ultralow-temperature butterfly valve |
-
2007
- 2007-07-19 CN CNU2007200408779U patent/CN201110387Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765283A (en) * | 2020-07-07 | 2020-10-13 | 北京瑞拓江南自控设备有限公司 | Top-mounted butterfly valve |
| CN112879572A (en) * | 2021-01-28 | 2021-06-01 | 浙江中信阀门有限公司 | Compact upper assembling type detachable online maintenance ultralow-temperature butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 |