CN205780918U - A kind of hard soft seal switching bottom valve - Google Patents
A kind of hard soft seal switching bottom valve Download PDFInfo
- Publication number
- CN205780918U CN205780918U CN201620739420.6U CN201620739420U CN205780918U CN 205780918 U CN205780918 U CN 205780918U CN 201620739420 U CN201620739420 U CN 201620739420U CN 205780918 U CN205780918 U CN 205780918U
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- China
- Prior art keywords
- valve
- hard
- net
- sealing
- soft
- 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
This utility model relates to a kind of hard soft seal switching bottom valve.Mainly solve bottom valve use dumb, can not be arbitrarily with the problem changing sealing means.Including soft sealing valve net, hard seal valve net, soft seal flap and firmly seal flap, described soft sealing valve net and hard sealing valve net low side hollow out, described soft seal is provided with valve seat on the net, described valve seat is provided with the first flange, described soft seal flap is rotatably connected by head rod and the first flange, it is provided with sealing ring at described valve seat and soft sealing valve flap seal, the described hard valve that seals is provided with the second flange on the net, and described hard sealing valve Netcom crosses the second connecting rod and is rotatably connected with the second flange.This hard soft seal switching bottom valve good seal performance, have only to changing a valve net and flap during use, just can realize soft and hard seal with changing, easy accessibility, it is time saving and energy saving to use, and flexibility ratio is high, reduces use cost, have with low cost, practical and convenient, it is easy to the advantage of popularization.
Description
Technical field
This utility model relates to a kind of valve, is specifically related to a kind of hard soft seal switching bottom valve.
Background technology
Bottom valve is made up of parts such as valve body, valve gap, flap, sealing ring and pads, and the flap of bottom valve has single-lobe, bivalve and many
Several type such as lobe.Bottom valve is after accessing pipeline, and liquid medium enters valve body from valve gap direction, and the pressure of liquid acts on valve
Lobe so that flap is opened and allows medium to flow through, when the pressure medium in valve body changes or disappears, flap is closed and is stoped medium
Flow backwards.
Bottom valve sealing means typically now is generally divided into soft seal and hard seals, in actual use due to medium
Difference, needs to take the valve seat of different sealing type, thus needs constantly with changing different bottom valves, uses time-consuming expense
Power, uses flexibly, and use cost is high, and poor sealing performance affects actual job.
Utility model content
In order to overcome the deficiency of background technology, this utility model provides a kind of hard soft seal switching bottom valve, mainly solves
Bottom valve use dumb, can not arbitrarily with changing the problem of sealing means, this hard soft seal switch bottom valve good seal performance, during use
Have only to changing a valve net and flap, just can realize soft and hard seal with changing, easy accessibility, it is time saving and energy saving to use, flexibility ratio
Height, reduces use cost, has with low cost, practical and convenient, it is easy to the advantage of popularization.
This utility model be the technical scheme is that a kind of hard soft seal switching bottom valve, including valve body, also includes soft close
Sealing valve net, hard sealing valve net, soft seal flap and firmly seal flap, described soft sealing valve net and hard sealing valve net low side are engraved
Sky, described soft seal is provided with valve seat on the net, and described valve seat is provided with the first flange, and described soft seal flap passes through first
Connecting rod is rotatably connected with the first flange, is provided with sealing ring, described hard sealing at described valve seat and soft sealing valve flap seal
Valve is provided with the second flange on the net, and described hard sealing valve Netcom crosses the second connecting rod and is rotatably connected with the second flange.
Further, described valve seat external diameter and valve body junction are provided with sealing gasket.
Further, described sealing gasket is polytetrafluoroethylsealed sealed pad or PPL pad.
Further, described sealing gasket is rustless steel flexible graphite gasket.
Further, described soft sealing valve net holds on the net with hard sealing valve and valve body two ends are provided with boss, described
Boss be provided with installing hole, described valve body is connected by bolt and soft sealing valve net and sealing valve net firmly.
Further, described soft sealing valve net is identical with the external diameter size of valve body junction with hard sealing valve net.
Further, described sealing ring is the rubber seal through vulcanizing treatment.
The beneficial effects of the utility model are: owing to taking technique scheme, this hard soft seal switching bottom valve sealing
Can good, have only to changing a valve net and flap during use, just can realize soft and hard seal with changing, easy accessibility, use saves time
Laborsaving, flexibility ratio is high, reduces use cost, has with low cost, practical and convenient, it is easy to the advantage of popularization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation figure of hard sealing valve net of the present utility model.
In figure 1, valve body；2, soft sealing valve net；3, hard sealing valve net；4, soft seal flap；5, flap is firmly sealed；6, valve
Seat；7, the first flange；8, head rod；9, sealing ring；10, the second flange；11, the second connecting rod；12, sealing gasket；13, convex
Platform；14, installing hole；15, bolt.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model embodiment is described further.
As shown in Figure 1 with Figure 2, a kind of hard soft seal switching bottom valve, including valve body 1, also include soft sealing valve net 2, hard
Sealing valve net 3, soft seal flap 4 and the hard flap 5 that seals, described soft sealing valve net 2 seals valve net 3 low side hollow out, institute with hard
The soft seal net 2 stated is provided with valve seat 6, and described valve seat 6 is provided with the first flange 7, and described soft seal flap 4 is by first
Connecting rod 8 is rotatably connected with the first flange 7, and described valve seat 6 is provided with sealing ring 9 at soft seal flap 4 sealing, and described is hard
Sealing valve net 3 and be provided with the second flange 10, the described hard valve net 3 that seals is rotated even by the second connecting rod 11 and the second flange 10
Connect.
Preferably, described valve seat 6 external diameter and valve body 1 junction are provided with sealing gasket 12；Described sealing gasket 12 is tetrafluoro
Gasket seal or PPL pad；Described sealing gasket 12 is rustless steel flexible graphite gasket.The sealing gasket 12 when medium is room temperature
Selecting polytetrafluoroethylsealed sealed pad or PPL pad, when medium is high temperature, sealing gasket 12 selects rustless steel flexible graphite gasket, according to not
Select different sealing pad 12 can improve bottom valve sealing in different medium with medium, also improve the use of sealing gasket 12
In the life-span, reduce cost.
Preferably, described soft sealing valve net 2 and hard sealing valve net 3 upper end and valve body 1 two ends are provided with boss 13, institute
The boss 13 stated is provided with installing hole 14, and described valve body 1 is connected with soft sealing valve net 2 and the hard valve net 3 that seals by bolt 15；
Described soft sealing valve net 2 is identical with the external diameter size of valve body 1 junction with hard sealing valve net 3.Bolt 15 is used to connect, convenient
The dismounting of valve net is with changing.
Preferably, described sealing ring 9 is the rubber seal through vulcanizing treatment.Rubber seal through vulcanizing treatment
Circle can improve the sealing of bottom valve, it is ensured that zero leakage, when the most also can effectively alleviate flap closedown closing bottom valve when
Noise.
When bottom valve in water flowing when, flap can be washed under the effect of hydraulic pressure open, bottom valve is in the state opened, when water does not has
Time dynamic, flap is under the effect of water, and lower pressure valve lobe is closed.When medium requirements need to use and firmly seal,
Only need to pull down soft sealing valve net 2 and soft seal flap 4, change the hard valve net 3 that seals and just can meet with the hard assembly sealing flap 5
Requirement, in like manner needs soft seal when, only need to pull down hard sealing valve net 3 and hard sealing flap 5, change soft sealing valve net 2
Just can meet requirement, easy accessibility with the assembly of soft seal flap 4, seal reliable, and for having saved raw-material waste,
Reduce cost.
This hard soft seal switching bottom valve good seal performance, has only to during use, with changing a valve net and flap, just can realize
Soft and hard seal with changing, easy accessibility, it is time saving and energy saving to use, and flexibility ratio is high, reduces use cost, has with low cost, real
With convenient, it is easy to the advantage of popularization.
Every technical staff's notice: although this utility model describes according to above-mentioned detailed description of the invention, but this
The invention thought of utility model is not limited to that utility model, the repacking of any utilization inventive concept, all will include this in specially
In profit scope of patent protection.
Claims (7)
1. a hard soft seal switching bottom valve, including valve body, it is characterised in that: also include soft sealing valve net, the hard valve net, soft of sealing
Sealing flap and firmly seal flap, described soft sealing valve net and hard sealing valve net low side hollow out, described soft seal sets on the net
Having valve seat, described valve seat to be provided with the first flange, described soft seal flap is rotated by head rod and the first flange
Connecting, be provided with sealing ring at described valve seat and soft sealing valve flap seal, the described hard valve that seals is provided with the second flange, institute on the net
The hard sealing valve Netcom stated crosses the second connecting rod and is rotatably connected with the second flange.
Hard soft seal the most according to claim 1 switching bottom valve, it is characterised in that: described valve seat external diameter is connected with valve body
It is close that place is provided with sealing gasket.
Hard soft seal the most according to claim 2 switching bottom valve, it is characterised in that: described sealing gasket is polytetrafluoroethylsealed sealed pad
Sheet or PPL pad.
Hard soft seal the most according to claim 2 switching bottom valve, it is characterised in that: described sealing gasket is that rustless steel is flexible
Graphite pad.
Hard soft seal the most according to claim 1 switching bottom valve, it is characterised in that: described soft sealing valve net and hard sealing
Valve is held on the net and valve body two ends are provided with boss, and described boss is provided with installing hole, and described valve body passes through bolt with soft
Seal valve net and the hard valve net that seals connects.
Hard soft seal the most according to claim 1 switching bottom valve, it is characterised in that: described soft sealing valve net and hard sealing
Valve net is identical with the external diameter size of valve body junction.
Hard soft seal the most according to claim 1 switching bottom valve, it is characterised in that: described sealing ring is at over cure
The rubber seal of reason.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739420.6U CN205780918U (en) | 2016-07-12 | 2016-07-12 | A kind of hard soft seal switching bottom valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620739420.6U CN205780918U (en) | 2016-07-12 | 2016-07-12 | A kind of hard soft seal switching bottom valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780918U true CN205780918U (en) | 2016-12-07 |
Family
ID=58122042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620739420.6U Expired - Fee Related CN205780918U (en) | 2016-07-12 | 2016-07-12 | A kind of hard soft seal switching bottom valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780918U (en) |
-
2016
- 2016-07-12 CN CN201620739420.6U patent/CN205780918U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20190712 |