CN2763647Y - Gas cut off valve capable of replacing seal ring in pipeline - Google Patents
Gas cut off valve capable of replacing seal ring in pipeline Download PDFInfo
- Publication number
- CN2763647Y CN2763647Y CN 200520029827 CN200520029827U CN2763647Y CN 2763647 Y CN2763647 Y CN 2763647Y CN 200520029827 CN200520029827 CN 200520029827 CN 200520029827 U CN200520029827 U CN 200520029827U CN 2763647 Y CN2763647 Y CN 2763647Y
- Authority
- CN
- China
- Prior art keywords
- valve
- pipeline
- fuel gas
- access panel
- gas shutoff
- 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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- Valve Housings (AREA)
Abstract
The utility model relates to a gas cut-off valve, particularly a gas cut-off valve, the sealing ring of which is changed on a pipeline. The utility model comprises a valve plate and an annular sealing ring. When the gas cut-off valve is in an opened state, the position of a shell body, which corresponds to the annular sealing ring of the valve plate, is provided with a repair window and a cap which is used for opening and closing the sealing repair window is arranged on the repair window. After the structure is used, the sealing ring is changed directly through the repair window and a pipeline at the lower end does not need to be disassembled. The utility model has the advantages of convenient and rapid maintenance, simple structure, high efficiency and convenient use.
Description
Technical field
The utility model relates to the fuel gas shutoff valve, the particularly a kind of fuel gas shutoff valve that can change seal ring on pipeline.
Background technique
The fuel gas shutoff valve is used gas pipe line, coal gas is a kind of inflammable, explosive, poisonous medium, the requirement valve is safe and reliable, positive confinement, so general flexible barrier material that adopts corrosion-resistant good seal performance of the sealing ring material of valve plate, damage is in use arranged slightly, should in time change, safe and reliable to guarantee valve seal.In the process of the seal ring of changing valve, at first to disassemble valve again from production flow line and could change valve open, this workload greatly wastes time and energy, also need necessary crane gear for large bore valves, make troubles, influence the user and produce to the user.
The model utility content
The utility model purpose is to provide a kind of the need also need not take valve apart, just can change the fuel gas shutoff valve of seal ring at pipeline from pipeline dismounting valve.
To achieve these goals, the utility model adopts following technological scheme: a kind of fuel gas shutoff valve that can change seal ring on pipeline, comprise valve plate and O-ring seal, it is characterized in that: when fuel gas shutoff valve open mode, valve plate O-ring seal corresponding shell position is provided with the maintenance window, and the maintenance window is provided with able to turn on or off sealing access panel lid.
Described sealing access panel covers by bolt tightening on upper valve body.
One side of described sealing access panel lid is connected by hinge with the valve body corresponding position.
After having adopted this structure, because when fuel gas shutoff valve open mode, valve plate O-ring seal corresponding shell position is provided with the maintenance window, when seal ring wears out or damage the needs replacing, get final product from the replacing of maintenance window, need not dismounting lower channel or dismounting fuel gas shutoff valve, easy to maintenance quick, simple in structure, efficient is high, easy to use; On upper valve body, sealing effect is better by bolt tightening for sealing access panel lid; One side of sealing access panel lid is connected by hinge with the valve body corresponding position, is convenient to open and close sealing access panel lid, need not loan at call back and forth.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a front schematic view of the present utility model.
Embodiment
Embodiment: the fuel gas shutoff valve that can on pipeline, change seal ring as shown in Figure 1 and Figure 2, comprise valve plate 1 and O-ring seal 2, when fuel gas shutoff valve open mode, valve plate 1 O-ring seal 2 corresponding shell positions are provided with maintenance window 4, and maintenance window 4 is provided with able to turn on or off sealing access panel lid 3; On upper valve body 5, a side of sealing access panel lid 3 is connected by hinge 7 with the valve body corresponding position by bolt tightening for sealing access panel lid 3.
Respectively have a circular maintenance window 4 in upper valve body 5 both sides of valve, respectively adorn rotating hanging formula access panel lid 3 on it, when valve working, this access panel lid 3 by bolt tightening on upper valve body 5, make upper valve body 5 form airtight housing, this moment, valve plate 1 was in valve body 6 positions down, and the O-ring seal 2 of valve plate 1 blocks the passway; When the valve maintenance needs to change seal ring 2, at first valve plate 1 is risen to the upper end of upper valve body 5, allow seal ring 2 face maintenance window 4, the bolt that unclamps then on the access panel lid 3 is opened just replaceable seal ring with access panel lid 3.
Claims (3)
1, a kind of fuel gas shutoff valve that can on pipeline, change seal ring, comprise valve plate and O-ring seal, it is characterized in that: when fuel gas shutoff valve open mode, valve plate O-ring seal corresponding shell position is provided with the maintenance window, and the maintenance window is provided with able to turn on or off sealing access panel lid.
2, fuel gas shutoff valve as claimed in claim 1 is characterized in that: described sealing access panel covers by bolt tightening on upper valve body.
3, fuel gas shutoff valve as claimed in claim 1 or 2 is characterized in that: a side of described sealing access panel lid is connected by hinge with the valve body corresponding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029827 CN2763647Y (en) | 2005-01-20 | 2005-01-20 | Gas cut off valve capable of replacing seal ring in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029827 CN2763647Y (en) | 2005-01-20 | 2005-01-20 | Gas cut off valve capable of replacing seal ring in pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2763647Y true CN2763647Y (en) | 2006-03-08 |
Family
ID=36141192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520029827 Expired - Fee Related CN2763647Y (en) | 2005-01-20 | 2005-01-20 | Gas cut off valve capable of replacing seal ring in pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2763647Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524273A (en) * | 2020-12-27 | 2021-03-19 | 诸暨市昂伯暖通科技有限公司 | Pressure seal structure and have automatic switching function's hot-water heating valve |
-
2005
- 2005-01-20 CN CN 200520029827 patent/CN2763647Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524273A (en) * | 2020-12-27 | 2021-03-19 | 诸暨市昂伯暖通科技有限公司 | Pressure seal structure and have automatic switching function's hot-water heating 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: 20060308 Termination date: 20120120 |