CN204592323U - A kind of block valve - Google Patents
A kind of block valve Download PDFInfo
- Publication number
- CN204592323U CN204592323U CN201520092208.0U CN201520092208U CN204592323U CN 204592323 U CN204592323 U CN 204592323U CN 201520092208 U CN201520092208 U CN 201520092208U CN 204592323 U CN204592323 U CN 204592323U
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- CN
- China
- Prior art keywords
- valve
- butterfly plate
- valve rod
- butterfly
- medium channel
- 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 embodiment discloses a kind of block valve, comprise the butterfly valve unit of two or more serial connection, each butterfly valve unit comprises valve body, valve rod and butterfly plate, described valve body has medium channel and valve rod passageway, described valve rod passageway is perpendicular to described medium channel, described valve rod is arranged in described valve rod passageway, described butterfly plate is contained in described medium channel, described butterfly plate is fixed on described valve rod with medium channel described in On/Off, described butterfly plate comprises main butterfly plate and secondary butterfly plate, described secondary butterfly plate is installed on described valve rod, described main butterfly plate is installed on described secondary butterfly plate, the gap of described main butterfly plate and described secondary butterfly plate arranges spacer.In the utility model, block valve is connected in series by two or more butterfly valve unit and forms, the butterfly plate of each butterfly valve unit is combined by main butterfly plate and secondary butterfly plate, thickness can be adjusted by spacer between main butterfly plate and secondary butterfly plate, be conducive to blocking medium channel better when block valve is closed.
Description
Technical field
The utility model relates to valve technology field, particularly relates to a kind of block valve.
Background technique
Hard seal butterfly valve be with circular butterfly plate (closing element) with the rotation of valve shaft to the valve of the unlatching or closedown that realize pipeline, mainly do block valve and use, also can be designed to the function with cut-out and flow restriction control.There is certain defect in common butterfly valve: such as, and single butterfly plate is difficult to adjust thickness, and what affect medium channel blocks effect; For another example, valve rod and valve body center line and butterfly plate center line coaxial, there is excessive compression between butterfly plate upper and lower end and valve seat; And for example, the clearance seal of valve rod and valve body is bad, easily causes leakage.These problems affect combination property of block valve, is thus necessary to be improved.
Model utility content
For the defect that prior art exists, the object of the utility model embodiment is to provide a kind of block valve, can improve the performance of block valve at least in one aspect.
For solving above technical problem, the utility model embodiment provides a kind of butterfly valve unit comprising two or more serial connection, each butterfly valve unit comprises valve body, valve rod and butterfly plate, described valve body has medium channel and valve rod passageway, described valve rod passageway is perpendicular to described medium channel, described valve rod is arranged in described valve rod passageway, described butterfly plate is contained in described medium channel, described butterfly plate is fixed on described valve rod with medium channel described in On/Off, described butterfly plate comprises main butterfly plate and secondary butterfly plate, described secondary butterfly plate is installed on described valve rod, described main butterfly plate is installed on described secondary butterfly plate, the gap of described main butterfly plate and described secondary butterfly plate arranges spacer.
More preferably, described medium channel arranges the valve seat with inner conical surface, and described main butterfly plate has the male cone (strobilus masculinus) mated with the inner conical surface of described valve seat.
More preferably, the inner conical surface of described valve seat and the male cone (strobilus masculinus) of described main butterfly plate are formed by connecting by multiple table top.
More preferably, the closed side in described valve rod passageway arranges axle sleeve to support described valve rod, and the opening side in described valve rod passageway arranges valve gap to close.
More preferably, the opening side in described valve rod passageway arranges stuffing-box, loads filler to eliminate the gap of described valve body and described valve rod in described stuffing-box.
More preferably, described filler comprises filler, middle filler and lower filler.
More preferably, described filler follower compresses, and described follower is held in described valve gap.
More preferably, described valve rod is driven by spanner, and described spanner is connected by spanner seat and described valve rod.
More preferably, spring is provided with between described spanner seat and spanner to provide reposition force to described spanner.
More preferably, the center line of valve body and the center line of described butterfly plate described in the axis runout of described valve rod.
Compared with prior art, the utility model embodiment block valve is made up of the two or more butterfly valve unit be connected in series, butterfly plate in each butterfly valve unit is combined by main butterfly plate and secondary butterfly plate, thickness can being adjusted by spacer between main butterfly plate and secondary butterfly plate, being conducive to blocking medium channel better when closing.Especially, valve rod and valve body center line and butterfly plate center line bias are installed, eliminate unnecessary excessive compression, the phenomenon of swiping of butterfly plate and valve seat, alleviate to open and hinder distance, reduce and wear and tear, improve longer seat life.In addition, the gap-fill multiple filling layers of valve rod and valve body, is conducive to strengthening sealing effect, prevents medium from revealing.
Accompanying drawing explanation
Fig. 1 is the median plane sectional view of a butterfly valve unit in the utility model embodiment block valve;
Fig. 2 is the right elevation of the unit of butterfly valve shown in Fig. 1;
Embodiment
In order to understand know-why and the working procedure of the utility model embodiment better, come to be described in detail the utility model further below in conjunction with drawings and the specific embodiments.
The utility model embodiment block valve is connected in series by plural butterfly valve unit and forms, and each butterfly valve unit can adopt identical structure, is described in detail below with one of them butterfly valve unit.
Simultaneously see Fig. 1-Fig. 2, represent the structural representation of a butterfly valve unit in the utility model embodiment block valve.This butterfly valve unit comprises the parts such as valve body 1, axle sleeve 2, valve rod 3, valve seat 4, main butterfly plate 5, secondary butterfly plate 6, taper pin 7, socket cap screw 8, spacer 9, lower filler 10, middle filler 11, upper filler 12, Gland 13, hexagon nut 14, sunk screw 15, valve gap 16, taper pin 17, spanner seat 18, taper pin 19, spanner 20, label nail 21, label 22, spring 23, spring pin 24, is described further below.
As Figure 1-Figure 2, the valve body 1 of this butterfly valve unit has medium channel and valve rod passageway, valve rod passageway is perpendicular to medium channel: valve rod 3 is arranged in valve rod passageway, butterfly plate is contained in medium channel, this butterfly plate is fixed on valve rod 3, the On/Off medium channel with the rotation of valve rod 3, realizes the function of block valve thus, plays the effect of cut-out and flow restriction control.
In the present embodiment, butterfly plate is contained in medium channel, this butterfly plate is combined by main butterfly plate 5 and secondary butterfly plate 6, wherein secondary butterfly plate 6 is installed on valve rod 3 by taper pin 7, main butterfly plate 5 is installed on secondary butterfly plate 6 by socket cap screw 8, main butterfly plate 5 and secondary butterfly plate 6 gap between the two arrange spacer 9, adjust butterfly plate thickness like this by spacer 9, are conducive to blocking medium channel better when valve closing.
As Figure 1-Figure 2, the center line of axis runout valve body 1 of valve rod 3 and the center line of butterfly plate in the present embodiment, form two eccentric structure thus.Like this, by valve rod 3 and valve body 1 center line and butterfly plate center line bias are installed, eliminate unnecessary excessive compression, the phenomenon of swiping of butterfly plate and valve 4, alleviate the life-span of opening and hindering distance, reducing the valve seat 4 that weares and teares, improves.
As Figure 1-Figure 2, this butterfly valve unit has sealability preferably.Medium channel is arranged has the valve seat 4 of inner conical surface, and main butterfly plate 5 has the male cone (strobilus masculinus) matched, and this inner conical surface and male cone (strobilus masculinus) can be formed by connecting by multiple table top, when winner's butterfly plate 5 is closed and valve seat 4 form sealing effect preferably.
In the present embodiment, the closed side in valve rod passageway arranges axle sleeve 2 to support valve rod, and the opening side in valve rod passageway arranges valve gap 16, is connected between this valve gap 16 and valve body 1 by hexagon nut 14 and sunk screw 15, to close valve rod passageway.This valve gap 16 can fix label 22 with label nail 21, observably to indicate the contents such as safe installation requirement, safety event.
Especially, in the present embodiment, the opening side in valve rod passageway arranges stuffing-box, loads filler to eliminate the gap of valve body 1 and valve rod 3 in stuffing-box.This filler is made up of upper filler 12, middle filler 11 and lower filler 10, and these three layers of fillers can be made up of teflon, and they compress with follower 13, afterwards this follower 13 are held in valve gap 16 and push down.Due to valve rod 3 and the gap-fill multiple filling layers of valve body 1, be conducive to strengthening sealing effect, prevent medium from revealing.
Butterfly valve unit in the present embodiment can be manually or motorized motions mode.Fig. 1-Fig. 2 illustrates a kind of Hand-operated butterfly valve unit, and spanner seat 18 is fixed by taper pin 17 and valve rod 3, and spanner 20 is fixed by taper pin 19 and spanner seat 18, so just spanner 20 is affixed to valve rod 3 by spanner seat 18.In the present embodiment, with spring pin 24 fixing spring 23 between spanner seat 18 and spanner 20, to provide reposition force to spanner 20.Like this, operation spanner 20 just can actuate valve stem 3, is rotated with the main butterfly plate 5 above ovable valve stem 3 and secondary butterfly plate 6 by the rotation of this valve rod 3, thus butterfly valve unit is opened or closedown.
Above block valve good combination property, its structure is simple, and easy to process, cost is lower, has good market prospects.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection domain of the present utility model should define with the utility model claim is as the criterion.
Claims (10)
1. a block valve, it is characterized in that, comprise the butterfly valve unit of two or more serial connection, each butterfly valve unit comprises valve body, valve rod and butterfly plate, described valve body has medium channel and valve rod passageway, described valve rod passageway is perpendicular to described medium channel, described valve rod is arranged in described valve rod passageway, described butterfly plate is contained in described medium channel, described butterfly plate is fixed on described valve rod with medium channel described in On/Off, described butterfly plate comprises main butterfly plate and secondary butterfly plate, described secondary butterfly plate is installed on described valve rod, described main butterfly plate is installed on described secondary butterfly plate, the gap of described main butterfly plate and described secondary butterfly plate arranges spacer.
2. block valve as claimed in claim 1, is characterized in that, described medium channel arranges the valve seat with inner conical surface, and described main butterfly plate has the male cone (strobilus masculinus) mated with the inner conical surface of described valve seat.
3. block valve as claimed in claim 2, it is characterized in that, the inner conical surface of described valve seat and the male cone (strobilus masculinus) of described main butterfly plate are formed by connecting by multiple table top.
4. block valve as claimed in claim 1, it is characterized in that, the closed side in described valve rod passageway arranges axle sleeve to support described valve rod, and the opening side in described valve rod passageway arranges valve gap to close.
5. block valve as claimed in claim 4, it is characterized in that, the opening side in described valve rod passageway arranges stuffing-box, loads filler to eliminate the gap of described valve body and described valve rod in described stuffing-box.
6. block valve as claimed in claim 5, it is characterized in that, described filler comprises filler, middle filler and lower filler.
7. block valve as claimed in claim 5, it is characterized in that, described filler follower compresses, and described follower is held in described valve gap.
8. block valve as claimed in claim 1, it is characterized in that, described valve rod is driven by spanner, and described spanner is connected by spanner seat and described valve rod.
9. block valve as claimed in claim 8, is characterized in that, be provided with spring to provide reposition force to described spanner between described spanner seat and spanner.
10. the block valve as described in any one of claim 1-9, is characterized in that, the center line of valve body described in the axis runout of described valve rod and the center line of described butterfly plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092208.0U CN204592323U (en) | 2015-02-10 | 2015-02-10 | A kind of block valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092208.0U CN204592323U (en) | 2015-02-10 | 2015-02-10 | A kind of block valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592323U true CN204592323U (en) | 2015-08-26 |
Family
ID=53928476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520092208.0U Expired - Fee Related CN204592323U (en) | 2015-02-10 | 2015-02-10 | A kind of block valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317288A (en) * | 2017-01-16 | 2018-07-24 | 天津贝特尔流体控制阀门有限公司 | Butterfly valve type safety cut-off valve |
-
2015
- 2015-02-10 CN CN201520092208.0U patent/CN204592323U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317288A (en) * | 2017-01-16 | 2018-07-24 | 天津贝特尔流体控制阀门有限公司 | Butterfly valve type safety cut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |