CN208858951U - A kind of high sealing butterfly valve - Google Patents
A kind of high sealing butterfly valve Download PDFInfo
- Publication number
- CN208858951U CN208858951U CN201821435098.3U CN201821435098U CN208858951U CN 208858951 U CN208858951 U CN 208858951U CN 201821435098 U CN201821435098 U CN 201821435098U CN 208858951 U CN208858951 U CN 208858951U
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- Prior art keywords
- sealing ring
- butterfly plate
- valve
- sealing
- ring
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Abstract
本实用新型公开了一种高密封性蝶阀，包括阀体以及设置于阀体的介质通道，所述阀体内安装有穿设进介质通道的阀杆，所述介质通道壁上固设有阀座，所述阀杆上固设有蝶板，所述蝶板上固设有压圈，所述蝶板与压圈之间形成有围绕于蝶板圆心的安装环槽，所述安装环槽内设有配合阀座实现密封的密封圈，所述安装环槽朝向阀座的一面与密封圈之间形成有供密封圈进行形变的形变间隙，所述密封圈朝向形变间隙的一面且靠近蝶板的位置延伸有穿设进压圈与蝶板之间且被两者所压持的延伸部。本实用新型具有以下优点和效果：本实用新型具有更好的使用寿命且能达到更好的密封效果。
The utility model discloses a high-sealing butterfly valve, which comprises a valve body and a medium channel arranged in the valve body. , a butterfly plate is fixed on the valve stem, a pressure ring is fixed on the butterfly plate, and an installation ring groove around the center of the butterfly plate is formed between the butterfly plate and the pressure ring. There is a sealing ring that cooperates with the valve seat to achieve sealing. A deformation gap for the sealing ring to be deformed is formed between the side of the installation ring groove facing the valve seat and the sealing ring. The sealing ring faces the side of the deformation gap and is close to the butterfly plate. There is an extension part that penetrates between the pressure ring and the butterfly plate and is pressed by the two. The utility model has the following advantages and effects: the utility model has a better service life and can achieve a better sealing effect.
Description
Technical field
The utility model relates to a kind of valve, in particular to a kind of high leakproofness butterfly valve.
Background technique
Butterfly valve is called flap valve, is a kind of simple regulating valve of structure, can be used for the switch control of low pressure pipeline medium
Butterfly valve refers to that closure member (flap or butterfly plate) is disk, and a kind of valve of open and close is reached around valve shaft rotation.
Notification number is that the Chinese patent of CN207178716U discloses a kind of three eccentric two-way hard seal butterfly valve, includes valve
Body and valve shaft, valve body lower end are provided with matched hubcap, and the adjustment dress matched with valve shaft is provided in hubcap
It sets, the adjustment device includes the supporting block to offset and adjusting bolt, the lower end surface of the upper surface of supporting block and the valve shaft
It offsets, the annular seal groove I of sealing ring I is provided in supporting block, adjust overhead portion, threaded portion that bolt includes integral type
The rotation section and.
In above-mentioned patent be arranged between floating valve seat, butterfly plate and pressing ring in valve body be clamped with cooperation floating valve seat realize it is close
The sealing ring of envelope, the one side of floating valve seat back to valve body internal perisporium are the sealing surface being obliquely installed, and sealing ring is towards floating valve seat
One side be matching trim inclined surface.Since fluid media (medium) can be to the sealing surface of floating valve seat during quick flowing
Cause to wash away so that floating valve seat contacted with sealing ring become more coarse on one side；In the course of rotation along with butterfly plate
Sealing ring be will drive towards the movement of floating valve seat direction and form opposite extrusion friction with the sealing surface of floating valve seat, caused thick
Rough sealing surface can cause concentrated wear to sealing ring, if things go on like this be easy to influence the service life of sealing ring, to influence
To the sealing effect of butterfly valve.
Utility model content
The purpose of the utility model is to provide a kind of high leakproofness butterfly valve, which can be reduced the mill caused by sealing ring
Damage, to make butterfly valve that there is better seal effect.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of high leakproofness butterfly
Valve including valve body and is set to the medium channel of valve body, is equipped with the valve rod worn into medium channel in the valve body, described
It is installed with valve seat on medium channel wall, butterfly plate is installed on the valve rod, pressing ring, the butterfly plate and pressure are installed on the butterfly plate
It is formed with the installation annular groove around the butterfly plate center of circle between circle, the sealing that cooperation valve seat realizes sealing is equipped in the installation annular groove
Circle, the installation annular groove carry out the deformation gap of deformation, institute towards being formed between the one side and sealing ring of valve seat for sealing ring
The position for stating sealing ring towards the one side in deformation gap and close butterfly plate, which is extended with, to be worn between pressing ring and butterfly plate and by the two
The extension pressed.
By using above-mentioned technical proposal, butterfly valve drives butterfly plate to turn towards valve seat direction during closing by valve rod
It is dynamic so that sealing ring is first contacted with the sealing surface of valve seat close to the side of butterfly plate, sealing ring by from valve seat to it
The active force of application, so that sealing ring can carry out deformation offset towards the direction where deformation gap close to the side of pressing ring；It is logical
The setting for crossing deformation gap enables sealing ring to have space to carry out material deformation, to reduce butterfly valve during the shutdown process, seals
The opposing force that circle is formed between the two with valve seat, reduction are worn for caused by sealing ring, and lift-off seal circle uses the longevity
Life, enables butterfly valve to have better seal effect.And the setting in deformation gap can be reduced sealing ring close to the material of pressing ring side
Structural strength so that sealing ring close to the side of pressing ring when by active force, can preferably carry out deformation；When fluid media (medium) rushes
When hitting one side wall of the sealing ring towards pressing ring, the material deformation that sealing ring can preferably shift towards valve seat direction, thus
Make butterfly valve that there is better seal effect.
Be further arranged to: the installation annular groove includes being set to pressing ring towards the left groove body of butterfly plate one side and being set to
Butterfly plate is correspondingly arranged between the left groove body and right groove body towards the right groove body of pressing ring one side, and the left groove body is towards valve seat
One side wall offers indent, and the indent is connected to setting with butterfly plate close to the one side wall of butterfly plate, the extension include linkage section,
Connect linkage section one end joining section and connect joining section one end pressure holding section, the linkage section back to joining section one end with
Sealing ring is wholely set and offsets close to the one side wall of butterfly plate and the one side wall of right groove body towards left groove body, and the pressure holding section extends
Into indent.
By using above-mentioned technical proposal, presses section and extend into indent and fixation is pressed by both pressing ring and butterfly plate, it should
Kind of setting so that the fixed force of sealing ring is all located at side of the sealing ring towards butterfly plate, enable sealing ring close to the side of pressing ring more
Good carry out deformation effect.
Be further arranged to: the one side wall of the joining section is towards sealing ring, another side wall and right groove body towards valve seat
One side wall offsets, and the joining section is formed with deformation spacing towards between the one side wall and sealing ring of sealing ring, between the deformation
Away from being connected to setting with deformation gap.
By using above-mentioned technical proposal, the setting of deformation spacing increases the deformation space of sealing ring, and makes sealing ring
Fixed force can enable sealing ring preferably to carry out deformation, and the setting energy of deformation spacing more close to the side where butterfly plate
It contradict the sealing ring that deformation occurs will not by joining section, it is ensured that carry out stable deformation.
Be further arranged to: the butterfly plate towards pressing ring one side and correspond to indent position be equipped with limiting slot, it is described
It is spaced setting between limiting slot and right groove body, is integrally formed with the limit section for extending into limiting slot in the pressure holding section.
By using above-mentioned technical proposal, the setting for limiting section increases contact of the sealing ring with pressing ring and butterfly plate between the two
Area, and extend the curved path of fixed seal ring, better fixed effect is reached to sealing ring.
Be further arranged to: the left groove body is equipped with left groove towards the one side of right groove body, and the sealing ring corresponds to a left side
The position of groove extends into left groove；The one side of the right groove body towards left groove body is equipped with right groove, the sealing ring and company
The position that section is connect corresponding to right groove extends into right groove.
By using above-mentioned technical proposal, the setting of left groove and right groove carries out the sealing ring being located in mounting ring slot
Further limit, prevents sealing ring to be detached from installation annular groove when excessive deformation occurs.
It is further arranged to: offering the annular compartment around the butterfly plate center of circle inside the sealing ring.
By using above-mentioned technical proposal, the setting of chamber is further reduced the strength of materials of sealing ring, so that sealing ring
Material deformation can be more preferably carried out when by applied external force, worn for caused by itself to reduce, extended making for itself
Use the service life.
Be further arranged to: the stem internal is equipped with air inlet pipe, and one end of the air inlet pipe is worn from the side wall of valve rod
It is connected to after out and with chamber fixation.
By using above-mentioned technical proposal, gas is injected towards chamber interior by air inlet pipe, is used by the gas of injection
In the volume of control sealing ring, so that sealing ring is able to cooperate valve seat and reaches better seal effect, when butterfly plate is when needing to rotate,
Internal pressure by reducing chamber prevents the excessive wear of sealing ring for reducing the volume of sealing ring；And this kind of setting side
Formula can make the sealing ring under normal condition when that valve seat can not be cooperated to be sealed, and be able to achieve sealing ring by the gas of injection
Emergency sealing, promotes the practicability of butterfly valve.
In conclusion the utility model has the following beneficial effects: the utility model has better service life and energy
Reach better seal effect.
Detailed description of the invention
Fig. 1 is the longitudinal sectional view of embodiment；
Fig. 2 is the transverse sectional view of embodiment；
Fig. 3 is the portion A enlarged drawing in Fig. 2.
In figure: 1, valve body；2, medium channel；3, valve rod；4, valve seat；5, butterfly plate；6, pressing ring；7, annular groove is installed；7.1, left
Groove body；7.2, right groove body；8, sealing ring；9, deformation gap；10, extension；10.1, linkage section；10.2, joining section；10.3, pressure
Hold section；11, indent；12, deformation spacing；13, limiting slot；14, section is limited；15, left groove；16, right groove；17, chamber；18,
Air inlet pipe；19, deformation slot；20, installation passage.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to figs. 1 to Fig. 3, a kind of high leakproofness butterfly valve including valve body 1 and is set to the medium channel 2 of valve body 1, valve
The valve rod 3 worn into medium channel 2 is installed, the wall of medium channel 2 is equipped with the valve seat 4 of coaxial arrangement, and bolt passes through in body 1
Valve seat 4 is threadedly coupled the fixation being on 2 wall of medium channel for realizing valve seat 4 with valve body 1.It is located at medium channel 2 on valve rod 3
Position be fixedly installed butterfly plate 5, be equipped with pressing ring 6 back to the side of valve rod 3 on butterfly plate 5, bolt passes through pressing ring 6 and 5 spiral shell of butterfly plate
Line connects the fixation being on butterfly plate 5 for realizing pressing ring 6；Installation passage 20, installation passage are offered along its axial direction in valve rod 3
20 one end is in communication with the outside, the other end is connected to medium channel 2, is equipped in installation passage 20 and extends into medium channel 2
Air inlet pipe 18 passes through glue filling between 18 outer wall of installation passage wall and air inlet pipe and realizes fixing seal.
The installation annular groove 7 around 5 center of circle of butterfly plate is formed between butterfly plate 5 and pressing ring 6, installation annular groove 7 includes being set to
Pressing ring 6 towards butterfly plate 5 left groove body 7.1 and the right groove body 7.2 when being set to butterfly plate 5 towards pressing ring 6, left groove body
It is correspondingly arranged between 7.1 and right groove body 7.2；Left groove body 7.1 runs through periphery wall, the right groove body of pressing ring 6 close to the one side wall of valve seat 4
7.2 run through the periphery wall of butterfly plate 5 close to the one side wall of valve seat 4, are placed with a cooperation valve seat 4 in left groove body 7.1 and right groove body 7.2
Realize the sealing ring 8 of sealing.Sealing ring 8 back to valve seat 4 one side wall and left groove body 7.1 towards between the one side wall of valve seat 4, it is close
The one side wall and right groove body 7.2 of seal 8 back to valve seat 4 are each formed with deformation gap 9 towards between the side wall of valve seat 4.Left groove body
7.1 offer left groove 15 towards right groove body 7.2 on one side, and the position that sealing ring 8 corresponds to left groove 15 extends into left groove
In 15；Right groove body 7.2 offers right groove 16 towards left groove body 7.1 on one side, and the position that sealing ring 8 corresponds to right groove 16 is prolonged
Put in right groove 16, sealing ring 8 back to butterfly plate 6 one side and be located at installation annular groove 7 outside position offer around butterfly
The annular deformation slot 19 in 6 center of circle of plate can preferably drive sealing ring 8 towards 4 side of valve seat when fluid media impingement deformation slot 19
To movement, to realize better seal.
Left groove body 7.1 offers indent 11 towards valve seat 4 on one side, and indent 11 runs through pressing ring 6 close to the one side wall of butterfly plate 5
Towards the one side of butterfly plate 5, sealing ring 8 has been wholely set extension 10 back to valve seat 4 on one side, and extension 10 includes linkage section
10.1, it connects the joining section 10.2 of 10.1 one end of linkage section and connects the pressure holding section 10.3 of 10.2 one end of joining section；Linkage section
10.1, it is wholely set between joining section 10.2 and pressure holding 10.3 three of section, the radial parallel setting of linkage section 10.1 and butterfly plate 5,
Joining section 10.2 is vertically arranged with linkage section 10.1, presses section 10.3 extends into indent 11 and is vertically arranged with joining section 10.2.
Linkage section 10.1 is wholely set back to one end of joining section 10.2 and sealing ring 8 and one side wall and right groove body 7.2 close to butterfly plate 5
It offsets towards the one side wall of left groove body 7.1, joining section 10.2 is tangible towards being formed between the one side wall and sealing ring 8 of sealing ring 8
Become spacing 12, joining section 10.2 back to valve seat 4 one side wall with right groove body 7.2 offseting on one side towards valve seat 4, deformation spacing 12
Setting is connected to deformation gap 9.
One side of the butterfly plate 5 towards pressing ring 6 and the position corresponding to indent 11 offer limiting slot 13, limiting slot 13 and right slot
It is spaced setting between body 7.2, presses and is integrally formed with the limit section 14 for extending into limiting slot 13 in section 10.3, limit section 14 and pressure holding
Section 10.3 is vertically arranged；The annular compartment 17 around 5 center of circle of butterfly plate is offered inside sealing ring 8, air inlet pipe 18 is located at medium
One end inside channel 2 extends into 8 inside of sealing ring and connects with chamber 17 after passing through butterfly plate 5 back to the side of pressing ring 6 from butterfly plate 5
It is logical, between air inlet pipe 18 and sealing ring 8, is filled by glue between air inlet pipe 18 and butterfly plate 5 and realize fixing seal.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821435098.3U CN208858951U (en) | 2018-09-03 | 2018-09-03 | A kind of high sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821435098.3U CN208858951U (en) | 2018-09-03 | 2018-09-03 | A kind of high sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208858951U true CN208858951U (en) | 2019-05-14 |
Family
ID=66416601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821435098.3U Expired - Fee Related CN208858951U (en) | 2018-09-03 | 2018-09-03 | A kind of high sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208858951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869764A (en) * | 2018-09-03 | 2018-11-23 | 唐工阀门集团有限公司 | A kind of high leakproofness butterfly valve |
-
2018
- 2018-09-03 CN CN201821435098.3U patent/CN208858951U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869764A (en) * | 2018-09-03 | 2018-11-23 | 唐工阀门集团有限公司 | A kind of high leakproofness butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 |