CN203202253U - Connecting and fastening device of butterfly valve butterfly plate - Google Patents
Connecting and fastening device of butterfly valve butterfly plate Download PDFInfo
- Publication number
- CN203202253U CN203202253U CN 201320157573 CN201320157573U CN203202253U CN 203202253 U CN203202253 U CN 203202253U CN 201320157573 CN201320157573 CN 201320157573 CN 201320157573 U CN201320157573 U CN 201320157573U CN 203202253 U CN203202253 U CN 203202253U
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- CN
- China
- Prior art keywords
- butterfly plate
- butterfly
- valve rod
- pin
- valve
- 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 discloses a connecting and fastening device of a butterfly valve butterfly plate. The connecting and fastening device of the butterfly valve butterfly plate comprises a removing pull pin which is inserted in the butterfly plate and a valve rod in a penetrating mode, the butterfly plate is fixedly arranged on the valve rod through the removing pull pin, the axial line of the valve rod is perpendicular to the axial line of the butterfly plate, the axial line of the removing pull pin is perpendicular to the axial line of the valve rod, a threaded hole is formed in the rear end face of the removing pull pin, a pin hole for containing the removing pull pin is formed in the rear end of the butterfly plate, a limiting hole is formed in the rear end portion of the pin hole, the limiting hole limits the head portion of a bolt arranged on the removing pull pin to the rear end of the limiting hole, a plane connecting part I is arranged on the removing pull pin, a plane connecting part II corresponding to the plane connecting part I is arranged on the valve rod, and the plane connecting part II is located on the side, close to the rear end of the butterfly plate, of the axial line of the valve rod. The connection and fastening of the valve rod and the butterfly plate are completed through the removing pull pin arranged in the rear end of the butterfly plate, the butterfly plate does not need to be penetrated, and the potential risk that the butterfly plate is poor in sealing is effectively avoided.
Description
Technical field
The utility model relates to butterfly valve structure, is specifically related to the connection fastener of a kind of butterfly valve butterfly plate on the butterfly valve.
Background technique
Butterfly plate is main structure and the functional part on the butterfly valve, butterfly valve is widely used in the Closing Switch on the pipe-line transportation system, on pipe conveying procedure, mainly play and cut off and throttling action, wherein butterfly valve is particularly useful for the pipe-line transportation system of the liquid such as tap water, coal gas, rock gas, the stability of the cut-out of butterfly valve and the service behaviour of opening directly has influence on the effect of the throttling action of butterfly valve.The connection seal of butterfly plate and the stability of location have conclusive impact to butterfly valve.
In the existing butterfly plate Placement, butterfly plate wear with valve rod on and guarantee that the axis of the axis of valve rod and butterfly plate is perpendicular, then positioning hole is set respectively on butterfly plate and valve rod, the locating stud that interts in positioning hole realizes locating position and the annexation of valve rod and butterfly plate.This positioning connection structure requires positioning hole must run through butterfly plate and valve rod, the effect that is connected firmly in the time of just playing assembling, otherwise connect fastening poor effect.This Placement has been buried positioning hole on the butterfly plate and the gap between the locating stud gradually large and cause the hidden danger of butterfly plate poor sealing in the high-pressure work environment of butterfly valve, then causes the butterfly valve fault.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of connection fastener of butterfly valve butterfly plate, stability that can Effective Raise butterfly plate sealing effect and reduce the rate of fault of equipment.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of connection fastener of butterfly valve butterfly plate, comprise and intert on butterfly plate and valve rod and butterfly plate is fixed on Withdrawing pin on the valve rod, the axis of described valve rod is perpendicular to the axis of butterfly plate, the axis of described Withdrawing pin is perpendicular to the axis of valve rod, described Withdrawing pin ear end face is provided with tapped hole, the butterfly plate rear end is provided with the pin-and-hole of accommodating Withdrawing pin, the rearward end of pin-and-hole is provided with spacing hole, the head that described spacing hole will be installed on the bolt on the Withdrawing pin is limited to the rear end of spacing hole, described Withdrawing pin is provided with plane joint I, described valve rod is provided with the plane joint II of corresponding flat joint I, and described plane joint II is positioned at a side of the close butterfly plate rear end of valve rod axis.
As a kind of improvement, described plane joint I is clinoplain, and tilts to the inside gradually from front to back along the Withdrawing pin axial direction.Clinoplain more easily realize Withdrawing pin and valve rod good degree of adaptability.
As a kind of improvement, the plane of described plane joint I from Withdrawing pin first three/an initial ear end face that extands rearward to Withdrawing pin.
As a kind of improvement, the angle of the plane at the joint I place, plane on the described Withdrawing pin and the axis of Withdrawing pin is 15 degree.
The technical solution adopted in the utility model, its beneficial effect is: by the rear end at butterfly plate Withdrawing pin is set and valve rod is connected with butterfly plate is connected fasteningly, needn't run through butterfly plate, effectively avoided the hidden danger of butterfly plate poor sealing; Withdrawing pin be connected under the bolt tensioning function along the clinoplain contact with valve rod and slide into connect fastening, fastening to greatest extent Withdrawing pin and valve rod, and then stablized valve rod and be connected the connection effect with butterfly plate, and later stage Withdrawing pin and valve rod produce the controllability in gap under fluid impact better, have improved the operating life of butterfly valve.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is a kind of embodiment's of the utility model structural representation;
Fig. 2 is the enlarged view of I among Fig. 1.
Embodiment
A kind of embodiment's of the utility model structural representation as depicted in figs. 1 and 2, a kind of connection fastener of butterfly valve butterfly plate, comprise and intert on butterfly plate 1 and valve rod 2 and butterfly plate is fixed on Withdrawing pin 3 on the valve rod, the axis of described valve rod is perpendicular to the axis of butterfly plate, the axis of described Withdrawing pin is perpendicular to the axis of valve rod, described Withdrawing pin ear end face is provided with tapped hole, the butterfly plate rear end is provided with the pin-and-hole 4 of accommodating Withdrawing pin, the rearward end of pin-and-hole is provided with spacing hole 5, the head that described spacing hole will be installed on the bolt 6 on the Withdrawing pin is limited to the rear end of spacing hole, described Withdrawing pin is provided with plane joint I 7, described valve rod is provided with the plane joint II 8 of corresponding flat joint I, and described plane joint II is positioned at a side of the close butterfly plate rear end of valve rod axis.
In the present embodiment, described plane joint I is clinoplain, and tilts to the inside gradually from front to back along the Withdrawing pin axial direction.Tapered plane more easily realize Withdrawing pin and valve rod good degree of adaptability.
The plane of described plane joint I from Withdrawing pin first three/an initial ear end face that extands rearward to Withdrawing pin.Can form limit Cheng Xiaoguo.
The angle of the plane at the joint I place, plane on the described Withdrawing pin and the axis of Withdrawing pin is 15 degree.
Except above preferred embodiment, the utility model also has other mode of execution, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (4)
1. the connection fastener of a butterfly valve butterfly plate, comprise and intert upper at butterfly plate (1) and valve rod (2) and butterfly plate is fixed on Withdrawing pin (3) on the valve rod, the axis of described valve rod is perpendicular to the axis of butterfly plate, it is characterized in that: the axis of described Withdrawing pin is perpendicular to the axis of valve rod, described Withdrawing pin ear end face is provided with tapped hole, the butterfly plate rear end is provided with the pin-and-hole (4) of accommodating Withdrawing pin, the rearward end of pin-and-hole is provided with spacing hole (5), the head that described spacing hole will be installed on the bolt (6) on the Withdrawing pin is limited to the rear end of spacing hole, described Withdrawing pin is provided with plane joint I (7), described valve rod is provided with the plane joint II (8) of corresponding flat joint I, and described plane joint II is positioned at a side of the close butterfly plate rear end of valve rod axis.
2. the connection fastener of a kind of butterfly valve butterfly plate according to claim 1, it is characterized in that: described plane joint I is clinoplain, and tilts to the inside gradually from front to back along the Withdrawing pin axial direction.
3. the connection fastener of a kind of butterfly valve butterfly plate according to claim 1 and 2 is characterized in that: the plane of described plane joint I from Withdrawing pin first three/an initial ear end face that extands rearward to Withdrawing pin.
4. the connection fastener of a kind of butterfly valve butterfly plate according to claim 2 is characterized in that: the angle of the plane at the joint I place, plane on the described Withdrawing pin and the axis of Withdrawing pin is 15 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157573 CN203202253U (en) | 2013-03-30 | 2013-03-30 | Connecting and fastening device of butterfly valve butterfly plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157573 CN203202253U (en) | 2013-03-30 | 2013-03-30 | Connecting and fastening device of butterfly valve butterfly plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202253U true CN203202253U (en) | 2013-09-18 |
Family
ID=49146362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320157573 Expired - Lifetime CN203202253U (en) | 2013-03-30 | 2013-03-30 | Connecting and fastening device of butterfly valve butterfly plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594423A (en) * | 2019-09-23 | 2019-12-20 | 天津祥嘉流体控制系统有限公司 | Structure for positioning valve rod and butterfly plate of butterfly valve |
-
2013
- 2013-03-30 CN CN 201320157573 patent/CN203202253U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594423A (en) * | 2019-09-23 | 2019-12-20 | 天津祥嘉流体控制系统有限公司 | Structure for positioning valve rod and butterfly plate of butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |
|
| CX01 | Expiry of patent term |