CN207701785U - A kind of handle butterfly valve of high leakproofness - Google Patents
A kind of handle butterfly valve of high leakproofness Download PDFInfo
- Publication number
- CN207701785U CN207701785U CN201820012633.8U CN201820012633U CN207701785U CN 207701785 U CN207701785 U CN 207701785U CN 201820012633 U CN201820012633 U CN 201820012633U CN 207701785 U CN207701785 U CN 207701785U
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- Prior art keywords
- valve
- butterfly valve
- upside
- main body
- butterfly
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Abstract
The utility model discloses a kind of handle butterfly valves of high leakproofness,Including butterfly valve main body,Valve rod,First washer,Second packing ring,Inner sealing lid and external sealing cover,The butterfly valve body interior offers through-hole,And disk is installed in through-hole,Valve rod is installed on the upside of the disk,Valve stem nut is installed between the valve rod and butterfly valve main body,Valve deck is mounted with by bolt on the upside of the butterfly valve main body,The valve deck upper center offers circular trough,And valve rod one end is arranged through valve deck central circular slot,Circular trough bottom is equipped with second packing ring,The first O-shaped sealing ring is installed on the upside of the second packing ring,The second O-shaped sealing ring is installed on the upside of the first O-shaped sealing ring,Inner sealing lid is installed on the upside of the second O-shaped sealing ring,A kind of handle butterfly valve of high leakproofness of the utility model,By equipped with the first O-shaped sealing ring,Second O-shaped sealing ring and second packing ring,Increase the leakproofness that butterfly valve uses.
Description
Technical field
The utility model belongs to butterfly valve technical field, the handle butterfly valve of specifically a kind of high leakproofness.
Background technology
Butterfly valve refers to that closure member (flap or butterfly plate) is disk, and one kind of open and close is reached around valve shaft rotation
Valve mainly plays cut-out and throttling action on pipeline.Butterfly valve opening and closing element is a discoidal butterfly plate, around its own in valve body
Axis rotation, to achieve the purpose that keying or adjusting.Butterfly valve be suitable for producer, coal gas, natural gas, liquefied petroleum gas,
Various corrosivity are conveyed in the engineering systems such as town gas, hot and cold air, chemical industry smelting and generation environment-friendly, non-corrosive fluids are situated between
On the pipeline of matter, the flowing for adjusting and blocking medium.Butterfly valve classification has：Handle butterfly valve, turbine butterfly valve, Pneumatic butterfly valve, electricity
Dynamic butterfly valve etc..Butterfly plate is driven by valve rod, if turning over 90 °, just can complete once to open and close.Change the deflection angle of butterfly plate, you can control
The flow of medium processed.Butterfly valve is suitable for producer, coal gas, natural gas, liquefied petroleum gas, town gas, hot and cold air, chemical industry smelting
Conveyed in refining and the engineering systems such as generation environment-friendly, building water supply and drainage various corrosivity, non-corrosive fluids medium pipeline on, use
In the flowing for adjusting and blocking medium.
Existing handle butterfly valve technology has the following problems：Butterfly plate is driven by valve rod, if turning over 90 °, just can be completed primary
It opens and closes.Change the deflection angle of butterfly plate, you can control the flow of medium.Existing handle butterfly valve in use leakproofness compared with
Difference, it is difficult to satisfy the use demand.
Utility model content
The purpose of this utility model is to provide a kind of handle butterfly valves of high leakproofness, to solve in the prior art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions：A kind of handle butterfly valve of high leakproofness, including
Butterfly valve main body, valve rod, the first washer, second packing ring, inner sealing lid and external sealing cover, the butterfly valve body interior offer
Through-hole, and disk is installed in through-hole, valve rod is installed on the upside of the disk, valve is installed between the valve rod and butterfly valve main body
Stem nut, the butterfly valve main body upside are mounted with valve deck by bolt, and the valve deck upper center offers circular trough, and
Valve rod one end is arranged through valve deck central circular slot, and circular trough bottom is equipped with second packing ring, is installed on the upside of the second packing ring
There is the first O-shaped sealing ring, the second O-shaped sealing ring is installed on the upside of the first O-shaped sealing ring, on the second O-shaped sealing ring
Side is equipped with inner sealing lid, and the inner sealing covers side and is equipped with external sealing cover, and the disk is arranged to two sheets.
Preferably, the first washer is installed between the butterfly valve main body and valve deck.
Preferably, sealing gland is installed between the inner sealing lid and external sealing cover.
Preferably, sealant is installed on the outside of the disk.
Preferably, the butterfly valve main body and valve deck inside and outside are equipped with sealing epoxy resin coating.
Compared with prior art, the utility model has the beneficial effects that：The utility model by equipped with the first O-shaped sealing
Ring, the second O-shaped sealing ring and second packing ring, increase the leakproofness that butterfly valve uses, equal by butterfly valve main body and valve deck inside and outside
Equipped with sealing epoxy resin coating, the anti-corrosive properties of butterfly valve are increased, and reasonable for structure compact, disk is arranged to two sheets, just
Double-layer seal is carried out in butterfly valve.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the utility model；
Fig. 2 is the overall structure diagram of the utility model.
In figure：1- butterfly valves main body, 2- disks, 3- valve rods, 4- valve stem nuts, the first washers of 5-, 6- valve decks, 7- bolts, 8-
Second packing ring, the first O-shaped sealing rings of 9-, the second O-shaped sealing rings of 10-, 11- inner sealings lid, 12- sealing glands, the outsides 13- are close
Capping, 14- sealants, 15- through-holes.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1-2, in the utility model embodiment, a kind of handle butterfly valve of high leakproofness, including butterfly valve main body 1,
Valve rod 3, the first washer 5, second packing ring 8, inner sealing lid 11 and external sealing cover 13 offer through-hole inside butterfly valve main body 1
15, and disk 2 is installed in through-hole 15,2 upside of disk is equipped with valve rod 3, and valve rod is equipped between valve rod 3 and butterfly valve main body 1
Nut 4, convenient for being fixed to valve rod 3,1 upside of butterfly valve main body is mounted with valve deck 6,6 upper end of valve deck by bolt 7
Middle part offers circular trough, and 3 one end of valve rod is arranged through 6 central circular slot of valve deck, and circular trough bottom is equipped with second packing ring
8,8 upside of second packing ring is equipped with the first O-shaped sealing ring 9, and 9 upside of the first O-shaped sealing ring is equipped with the second O-shaped sealing ring 10,
Second O-shaped sealing ring, 10 upside is equipped with inner sealing lid 11, improves the leakproofness when rotation of valve rod 3 uses, inner sealing
11 upside of lid is equipped with external sealing cover 13, and disk 2 is arranged to two sheets, and double-layer seal is carried out convenient for butterfly valve.
By being equipped with the first washer 5 between the butterfly valve main body 1 and valve deck 6, improve butterfly valve main body 1 and valve deck 6 it
Between leakproofness.
By being equipped with sealing gland 12 between the inner sealing lid 11 and external sealing cover 13, valve is further increased
The leakproofness when rotation of bar 3 uses.
Sealant 14 is installed by 2 outside of the disk, increases leakproofness when 2 butterfly plate of disk uses.
It is equipped with sealing epoxy resin coating by the butterfly valve main body 1 and 6 inside and outside of valve deck, increases the anti-corrosion of butterfly valve
Property, improve service life.
Operation principle：Butterfly valve main body 1 is mounted in conveyance conduit, 2 butterfly plate of disk is driven by valve rod 3, if turning over 90 °,
Just can complete once to open and close, by equipped with the first O-shaped sealing ring 9, the second O-shaped sealing ring 10 and second packing ring 8, increase butterfly
The leakproofness that valve uses is equipped with sealing epoxy resin coating by butterfly valve main body 1 and 6 inside and outside of valve deck, increases butterfly valve
Anti-corrosive properties improve service life, and reasonable for structure compact, easy to use, are arranged to two sheets by disk 2, are convenient for butterfly
Valve carries out double-layer seal.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (5)
1. a kind of handle butterfly valve of high leakproofness, including butterfly valve main body (1), valve rod (3), the first washer (5), second packing ring (8),
Inner sealing lid (11) and external sealing cover (13), it is characterised in that:Through-hole (15) is offered inside the butterfly valve main body (1),
And disk (2) is installed in through-hole (15), valve rod (3), the valve rod (3) and butterfly valve main body are installed on the upside of the disk (2)
(1) valve stem nut (4) is installed, butterfly valve main body (1) upside is mounted with valve deck (6) by bolt (7), described between
Valve deck (6) upper center offers circular trough, and valve rod (3) one end is arranged through valve deck (6) central circular slot, circular trough bottom
Second packing ring (8) is installed, the first O-shaped sealing ring (9), the first O-shaped sealing ring are installed on the upside of the second packing ring (8)
(9) upside is equipped with the second O-shaped sealing ring (10), and inner sealing lid (11) is equipped on the upside of the second O-shaped sealing ring (10),
External sealing cover (13) is installed on the upside of the inner sealing lid (11), the disk (2) is arranged to two sheets.
2. a kind of handle butterfly valve of high leakproofness according to claim 1, it is characterised in that：The butterfly valve main body (1) with
First washer (5) is installed between valve deck (6).
3. a kind of handle butterfly valve of high leakproofness according to claim 1, it is characterised in that：The inner sealing lid (11)
Sealing gland (12) is installed between external sealing cover (13).
4. a kind of handle butterfly valve of high leakproofness according to claim 1, it is characterised in that：Peace on the outside of the disk (2)
Equipped with sealant (14).
5. a kind of handle butterfly valve of high leakproofness according to claim 1, it is characterised in that：The butterfly valve main body (1) and
Valve deck (6) inside and outside is equipped with sealing epoxy resin coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820012633.8U CN207701785U (en) | 2018-01-04 | 2018-01-04 | A kind of handle butterfly valve of high leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820012633.8U CN207701785U (en) | 2018-01-04 | 2018-01-04 | A kind of handle butterfly valve of high leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207701785U true CN207701785U (en) | 2018-08-07 |
Family
ID=63031377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820012633.8U Active CN207701785U (en) | 2018-01-04 | 2018-01-04 | A kind of handle butterfly valve of high leakproofness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207701785U (en) |
-
2018
- 2018-01-04 CN CN201820012633.8U patent/CN207701785U/en active Active
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