CN203656222U - Butterfly valve with valve body boss - Google Patents
Butterfly valve with valve body boss Download PDFInfo
- Publication number
- CN203656222U CN203656222U CN201420018589.3U CN201420018589U CN203656222U CN 203656222 U CN203656222 U CN 203656222U CN 201420018589 U CN201420018589 U CN 201420018589U CN 203656222 U CN203656222 U CN 203656222U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- butterfly
- body boss
- boss
- 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
Links
- 238000012856 packing Methods 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Abstract
The utility model discloses a butterfly valve with a valve body boss. The butterfly valve with the valve body boss is formed by a valve body, a valve rod, a valve base and a valve plate in a connecting mode; a valve rod hole which is for the valve rod to penetrate is formed inside the valve body; a shaft sleeve is connected to an exterior of the valve rod in a sleeve mode; the valve body boss is arranged on the valve body; the valve body boss is arranged at a connecting position of the valve body and the valve plate; a sealing ring and a baffle ring are arranged on the valve plate; the baffle ring enables the sealing ring to be fixed on the valve plate through a bolt and a lock washer. The butterfly valve with the valve body boss has the advantages of extending the length of a shaft sleeve portion which is installed inside a valve rod hole due to the valve body boss, increasing the being supported area of the valve rod, meanwhile avoiding the service life of the butterfly valve from being influenced caused by accumulation of impurities in a pipeline and other possible particles at the connecting position of the valve body and the valve plate.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly a kind of butterfly valve with valve body boss.
Background technique
If the valve body of butterfly valve does not have additional valve body boss, ducted impurity and other particles that may exist are easy to, in valve body and the accumulation of valve plate intersection, affect the working life of butterfly valve.
Model utility content
Technical problem to be solved in the utility model is, a kind of ducted impurity and other particles that may exist butterfly valve with valve body boss in valve body and the accumulation of valve plate intersection of having avoided is provided.
For solving the problems of the technologies described above, the butterfly valve of what the utility model provided have valve body boss, connected and composed by valve body, valve rod, valve seat and valve plate, in described valve body, have the valve rod hole passing for valve rod, described valve rod outer cover is connected to axle sleeve, and described valve body is provided with valve body boss, and described valve body boss is located at the joining place of valve body and valve plate, described valve plate is provided with seal ring and back-up ring, and described back-up ring is fixed on seal ring on valve plate by screw and lock washer.Due to the existence of valve body boss, the sleeve length that makes to be arranged in valve rod hole is extended, and has increased the Area of bearing to valve rod, simultaneously, avoid ducted impurity and other particles that may exist in valve body and the accumulation of valve plate intersection, affected the working life of butterfly valve; Reach the object of quick-replaceable seal ring by removable screw.
As preferably, the end of described valve rod has keyway, and the width of described keyway one end is less than the width of the key matching with this keyway, and this end is located at the end of valve rod.No matter valve rod in any direction, all can ensure that the key in keyway can not slide out, and has improved fastness.
As preferably, between described seal ring and valve plate, be provided with seal ring packing ring, between valve seat and valve body, be provided with valve washer.Improve sealing.
As preferably, described valve seat is connected with valve body screw thread.Realized the object that can change valve seat, convenient for maintaining, reduces maintenance cost.
Adopt after above structure, the butterfly valve with valve body boss of the present utility model compared with prior art, have the following advantages: due to the existence of valve body boss, the sleeve length that makes to be arranged in valve rod hole is extended, increase the Area of bearing to valve rod, meanwhile, avoid ducted impurity and other particles that may exist in valve body and the accumulation of valve plate intersection, affected the working life of butterfly valve.
Brief description of the drawings
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is side of the present utility model sectional structure chart.
Wherein: valve body 1, valve rod 2, valve seat 3, valve plate 4, axle sleeve 5, valve body boss 6, seal ring 7, back-up ring 8, screw 9, keyway one end 10, seal ring packing ring 11, valve washer 12.
Embodiment
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
As shown in Figure 1-2, the butterfly valve of what the present embodiment provided have valve body boss, by valve body 1, valve rod 2, valve seat 3 and valve plate 4 connect and compose, described valve rod 2 outer cover are connected to axle sleeve 5, described valve body 1 is provided with valve body boss 6, described valve body 1 is one-body molded with valve body boss 6, described valve body boss 6 is located at the joining place of valve body 1 and valve plate 4, described valve plate 4 is provided with seal ring 7 and back-up ring 8, described back-up ring 8 is fixed on seal ring 7 on valve plate 4 by screw 9 and lock washer, the end of described valve rod 2 has keyway, the width of described keyway one end 10 is less than the width of the key matching with this keyway, this end is located at the end of valve rod 2, between described seal ring 7 and valve plate 4, be provided with seal ring packing ring 11, between valve seat 3 and valve body 1, be provided with valve washer 12, described valve seat 3 is threaded with valve body 1.
Claims (4)
1. one kind has the butterfly valve of valve body boss, connected and composed by valve body, valve rod, valve seat and valve plate, in described valve body, have the valve rod hole passing for valve rod, described valve rod outer cover is connected to axle sleeve, it is characterized in that: described valve body is provided with valve body boss, described valve body boss is located at the joining place of valve body and valve plate, and described valve plate is provided with seal ring and back-up ring, and described back-up ring is fixed on seal ring on valve plate by screw and lock washer.
2. the butterfly valve with valve body boss according to claim 1, is characterized in that: the end of described valve rod has keyway, and the width of described keyway one end is less than the width of the key matching with this keyway, and this end is located at the end of valve rod.
3. the butterfly valve with valve body boss according to claim 1, is characterized in that: between described seal ring and valve plate, be provided with seal ring packing ring, between valve seat and valve body, be provided with valve washer.
4. the butterfly valve with valve body boss according to claim 1, is characterized in that: described valve seat is connected with valve body screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018589.3U CN203656222U (en) | 2014-01-13 | 2014-01-13 | Butterfly valve with valve body boss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018589.3U CN203656222U (en) | 2014-01-13 | 2014-01-13 | Butterfly valve with valve body boss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656222U true CN203656222U (en) | 2014-06-18 |
Family
ID=50922610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420018589.3U Expired - Lifetime CN203656222U (en) | 2014-01-13 | 2014-01-13 | Butterfly valve with valve body boss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656222U (en) |
-
2014
- 2014-01-13 CN CN201420018589.3U patent/CN203656222U/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |