CN2415221Y - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN2415221Y CN2415221Y CN 99228812 CN99228812U CN2415221Y CN 2415221 Y CN2415221 Y CN 2415221Y CN 99228812 CN99228812 CN 99228812 CN 99228812 U CN99228812 U CN 99228812U CN 2415221 Y CN2415221 Y CN 2415221Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- butterfly plate
- butterfly
- 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, composed of a cylindrical valve body, a valve rod, a butterfly plate which is positioned inside the valve body and is fixedly connected to the valve rod, a sealing member, a gland, and screws. The integration of the structure of the valve rod is changed into two sections of connection by a slot tenon type structure. The disassembling procedure can be reduced, and because of small operating space, the condition of difficult replacement can be avoided. A slotted hole is arranged on the valve rod, the butterfly plate is inserted in the slotted hole, and the butterfly plate and the valve rod are fastened and connected with a screw rod and a screw nut. The problems of easy looseness and exfoliation of the butterfly plate can be conquered.
Description
Model utility relates to a kind of improvement of butterfly valve structure.
In the prior art, butterfly valve by valve body cylindraceous, valve rod, be positioned at valve body and the butterfly plate, Sealing, gland and the screw that are fixedly connected on the valve rod are formed, wherein, valve rod is installed on the valve body and passes body cavity channel center, valve rod shaft sealing place at an upper portion thereof seals by Sealing, and there have gland to pass through screw on it to be fastening good.Sealing of the prior art usually adopts rubber seal, and is easily aging, and the sealing circle is under the working environment of extruding for a long time, and easily produce permanent deformation and cause seal failure, therefore, the measure of the assurance sealability that the periodic replacement seal ring necessitates.And existing butterfly valve structure has determined the replacing difficulty of seal ring big, efficient is low, locates in no enough operating spaces even can not change, and may destroy sealing surface.In addition, in the prior art, for Vertical disc type butterfly valve, because butterfly plate is fastened on the plane of valve rod one side, under the user mode of butterfly valve, because pipeline has directivity, the impact force because of fluid produces vibration easily, cause that butterfly plate is loosening to be produced noise even come off, make butterfly valve lose its function.
The utility model aims to provide a kind of butterfly valve of being convenient to safeguard.
Technical solution of the present utility model is as follows:
The utility model by valve body cylindraceous, valve rod, be positioned at valve body and the butterfly plate, Sealing, gland and the screw that are fixedly connected on the valve rod are formed, wherein, valve rod is installed on the valve body and passes body cavity channel center, valve rod shaft sealing place at an upper portion thereof seals by Sealing, there have gland to pass through screw on it to be fastening good, it is characterized in that: valve rod is divided into two sections, and two sections valve rods connect with the slot tenon type structure, and its link position is positioned under shaft sealing place on the valve body internal channel.
The utility model only need take out the epimere valve rod because the structure of valve rod changes two sections that connect with the slot tenon type structure into by one when changing seal ring, both reduced the operation of dismounting, has avoided changing because of the operating space is little situation of difficult again.
Further purpose of the present utility model is to provide a kind of and reaches aforementioned purpose and can overcome the butterfly valve that butterfly plate is easily loosening even come off
Further solution of the present utility model is:
Have long be slightly larger than butterfly plate diameter, wide slotted eye and the some perpendicular tapped holes that is slightly larger than butterfly plate thickness on the valve rod described in the utility model, described butterfly plate inserts in the slotted eye and along valve rod and is symmetrical distribution, and butterfly plate and valve rod are fastenedly connected with screw rod and nut by tapped hole.
Because above structure, valve plate is fastening reliable in the utility model, can not produce the vibration obscission, and the utility model is non-directional simultaneously.
Below with reference to drawings and Examples the utility model is described further:
Accompanying drawing 1 is the utility model embodiment's a structural representation:
Accompanying drawing 2 is the schematic representation of valve rod among the utility model embodiment:
Each sequence number is respectively in the accompanying drawing: 1, gland; 2, rubber seal; 3, hypomere valve rod; 4, butterfly plate; 5, screw rod; 6, epimere valve rod; 7, valve body; 8, nut; 9, slotted eye.
Referring to accompanying drawing 1,2, the utility model embodiment is a Vertical disc type butterfly valve, by valve body cylindraceous (7), valve rod, be positioned at valve body and the butterfly plate (4), rubber seal (2), gland (1) and the screw that are fixedly connected on the valve rod are formed, valve rod is made up of for (3) two sections the epimere valve rod (6) and the hypomere valve rod that connect with the slot tenon type structure, and its link position is positioned under shaft sealing place, on the valve body internal channel.This valve rod is installed on the valve body and passes body cavity channel center, and valve rod shaft sealing place at an upper portion thereof has gland (1) fastening good by screw by rubber seal (2) sealing on it.On the hypomere valve rod, have long be slightly larger than butterfly plate diameter, wide slotted eye (9) and the some perpendicular tapped holes that is slightly larger than butterfly plate thickness, described butterfly plate (4) inserts in the slotted eye and along valve rod and is symmetrical distribution, and butterfly plate and valve rod are fastenedly connected with screw rod (5) and nut (8) by tapped hole.
Claims (2)
1, a kind of butterfly valve, by valve body cylindraceous, valve rod, be positioned at valve body and the butterfly plate, Sealing, gland and the screw that are fixedly connected on the valve rod are formed, wherein, valve rod is installed on the valve body and passes body cavity channel center, valve rod shaft sealing place at an upper portion thereof seals by Sealing, and there have gland to pass through screw on it to be fastening good, and it is characterized in that: valve rod is divided into two sections, two sections valve rods connect with the slot tenon type structure, and its link position is positioned under shaft sealing place, on the valve body internal channel.
2, butterfly valve according to claim 1, it is characterized in that: have long be slightly larger than butterfly plate diameter, wide slotted eye and the some perpendicular tapped holes that is slightly larger than butterfly plate thickness on the described valve rod, described butterfly plate inserts in the slotted eye and along valve rod and is symmetrical distribution, and butterfly plate and valve rod are fastenedly connected with screw rod and nut by tapped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228812 CN2415221Y (en) | 1999-07-02 | 1999-07-02 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228812 CN2415221Y (en) | 1999-07-02 | 1999-07-02 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2415221Y true CN2415221Y (en) | 2001-01-17 |
Family
ID=34018132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99228812 Expired - Fee Related CN2415221Y (en) | 1999-07-02 | 1999-07-02 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2415221Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915351A (en) * | 2021-10-29 | 2022-01-11 | 闫皓男 | Eccentric butterfly valve |
-
1999
- 1999-07-02 CN CN 99228812 patent/CN2415221Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915351A (en) * | 2021-10-29 | 2022-01-11 | 闫皓男 | Eccentric butterfly valve |
| CN113915351B (en) * | 2021-10-29 | 2023-03-28 | 安徽省白湖阀门厂有限责任公司 | Eccentric 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 |