CN208651651U - A kind of double seals butterfly valve - Google Patents
A kind of double seals butterfly valve Download PDFInfo
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- CN208651651U CN208651651U CN201821176833.3U CN201821176833U CN208651651U CN 208651651 U CN208651651 U CN 208651651U CN 201821176833 U CN201821176833 U CN 201821176833U CN 208651651 U CN208651651 U CN 208651651U
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- plate
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Abstract
The utility model discloses a kind of double seals butterfly valves, comprising: valve body is from top to bottom disposed with upper valve rod, dish plate support base, dish plate and lower valve rod in the inside of valve body；Main valve seat and auxiliary-seat are connected in the end of dish plate support base；A track plate seat surface is equipped on the position of auxiliary-seat on dish plate support base, which is provided with several bolts hole, track plate is fixed on track plate seat surface by the cooperation of bolt hole and screw；It is equipped with valve seat supporting surface in the lower section of track plate, valve seat supporting surface and dish plate sealing surface connect into a sphere face.The utility model is by using piston type self-sealing valve seat, solve high pressure and bigbore sealing potential problem, and passed through track plate and valve seat supporting surface in main valve seat and auxiliary-seat stroke with butterfly plate sealing surface clutch action, the double insurance sealing function for playing major and minor valve seat, when having haved the function that heavy caliber can realize high pressure sealing；Have the characteristics that double containment, service life are long, high pressure resistant, anti abrasive.
Description
Technical field
The utility model relates to valve technology field, more particularly to a kind of double seals butterfly valve.
Background technique
Existing common butterfly valve is that butterfly plate is provided in valve body, and the lateral layout of butterfly plate has fixed valve seat to pass through
The rotation of butterfly plate carrys out forced branch and squeezes and formed to sealing, and for valve seat without the automatic Compensation Design of elasticity, sealing surface Rong Yi squeezes wound,
Service life is poor, and torsion is big, not high pressure resistant, including three eccentricity high-performance butterfly valve be also it is not high pressure resistant, too heavy caliber is also bad
Production, since three eccentricity small butterfly valve is shearing sealing of the hard metal to hard metal, the time is long, and the stress response of metal is led
Metallic sealing section deformation is caused, even if not washed away or wearing by medium, equally can also be sealed incessantly, and original butterfly valve
As soon as being all only to devise a seal valve seat, is sealed if there is leakage without second, seal non insurance.
Existing centre-pivoted butterfly valve is formed by being embedded in rubber sleeve in metal valve body, is formed by intermediate butterfly plate with rubber sleeve close
Envelope, can bear that pressure medium is too low, can not use on the fluid of mesohigh, since the bearing temperature of rubber is limited, also without
Method uses on high temperature, and rubber also will appear aging in phase regular hour, and service life is too short.
Existing eccentric-butterfly-valve forms sealing by metal valve body and eccentric butterfly plate, due to being firmly to hard in structure design
Hardness sealing, not only have a comparable difficulty in processing, seal aspect also unbearable too high pressure, torsion is also bigger, makes
It will not be too long with the service life.
Therefore, how to provide it is a kind of have excellent sealing performance, long service life, it is high pressure resistant, wear-resistant, be unlikely to deform
The problem of double seals butterfly valve of feature is those skilled in the art's urgent need to resolve.
Utility model content
There is excellent sealing performance, long service life, high pressure resistant, wear-resisting in view of this, the present invention provides a kind of
The double seals butterfly valve for the features such as damaging, being unlikely to deform.
To achieve the above object, the utility model provides the following technical solutions:
A kind of double seals butterfly valve, comprising: valve body is from top to bottom disposed with upper valve rod, dish in the inside of the valve body
Plate support base, dish plate and lower valve rod；Wherein, main valve seat and auxiliary-seat are connected in the end of the dish plate support base；Described
It is equipped with a track plate seat surface close to the position of auxiliary-seat on dish plate support base, which is provided with several bolts hole, by described
The cooperation of bolt hole and screw is fixed to track plate on track plate seat surface；It is supported in the lower section of the track plate equipped with valve seat
Face, the valve seat supporting surface and dish plate sealing surface are connected as one, and form a sphere face；It is characterized by further comprising: described
Dish plate support base is fixed on the valve body by upper valve rod and lower valve rod；It is filled out between the upper valve rod and lower valve rod
Material, the filler are compressed by gland, pressing ring, and bolt, nut carry out fit sealing in valve body.
Preferably, in a kind of above-mentioned double seals butterfly valve, it is equipped with bottom flange in the bottom cover of the lower valve rod, by described
Lower valve rod is fixed on the valve body by the screw inside bottom flange.
Preferably, in a kind of above-mentioned double seals butterfly valve, valve seat supporting surface and dish plate sealing surface that the dish plate is equipped with
It is linked together, forms a spherical
Preferably, in a kind of above-mentioned double seals butterfly valve, primary seal, auxiliary seal, rail are provided on the main valve seat
Road interface, spring and sealing ring；Secondary sealing, the spring and sealing ring are equipped in described auxiliary-seat one end.
Preferably, in a kind of above-mentioned double seals butterfly valve, the center of the dish plate support base is provided with upper valve rod
It is inserted into hole.
It can be seen via above technical scheme that compared with prior art, the utility model has the beneficial effect that
(1) by controlling upper and lower valve rod come rotary drive butterfly plate support base and butterfly plate, track plate, auxiliary-seat supporting surface, when
When rotating to off-position, the sealing surface on main valve seat and auxiliary-seat is close to the butterfly plate sealing surface on butterfly plate and forms dual-seal pressure
Power more high sealing performance is better；
(2) main valve seat and the subsequent support base of auxiliary-seat can be process using valve body, can also use independent branch
Seat is supportted, using welding, threaded connection etc. is ok, and in this rotary course, auxiliary-seat plays the role of cleaning butterfly plate sealing surface guarantor
It protects main valve seat not scratched by the impurity on butterfly plate when closing in place, equally plays the role of sealing；
(3) in opening procedure when open state, main valve seat sealing is detached from main valve seat with butterfly plate sealing surface, avoids wearing,
It improves service life, and in full open state and rotation, pushing open to make a concession under effect and bounced back a distance in track plates,
More effectively by the protection of auxiliary-seat, avoiding, which reduces medium, washes away or damages；
When closing in place, main valve seat and auxiliary-seat are all tightly attached to butterfly plate sealing under the action of spring and medium thrust
On face, sealing is formed, pressure is higher, and thrust is bigger, and sealing is tighter, there is double containment to insure reliable function, moreover it is possible to pass through
The protection of auxiliary-seat makes main valve seat more security seal, has pressure more high sealing better, the effect of automatic compensation sealing abrasion,
It is more suitable for the various occasions of high request and the buried long-distance transport pipes requirement of maintenance.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 attached drawing is the overall structure diagram of the utility model.
Fig. 2 attached drawing is the A-1 partial enlarged view of the utility model.
Fig. 3 attached drawing is the main valve seat main view of the utility model.
Fig. 4 attached drawing is the main valve seat rearview of the utility model.
Fig. 5 attached drawing is the main valve seat sectional view of the utility model.
Fig. 6 attached drawing is the auxiliary-seat main view of the utility model.
Fig. 7 attached drawing is the auxiliary-seat rearview of the utility model.
Fig. 8 attached drawing is the auxiliary-seat sectional view of the utility model.
Fig. 9 attached drawing is the dish plate side view of the utility model.
Figure 10 attached drawing is the dish plate top view of the utility model.
Specific embodiment
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
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model embodiment disclose it is a kind of have excellent sealing performance, long service life, it is high pressure resistant, wear-resistant,
The double seals butterfly valve for the features such as being unlikely to deform.
Attached drawing is please referred to, is a kind of double seals butterfly valve disclosed by the utility model, specifically includes:
Valve body 1 is from top to bottom disposed with upper valve rod 2, dish plate support base 3, dish plate 4 and lower valve in the inside of valve body 1
Bar 5；Wherein, main valve seat 6 and auxiliary-seat 7 are connected in the end of dish plate support base 3；Close to auxiliary-seat 7 on dish plate support base 3
Position be equipped with a track plate seat surface 31, which is provided with several bolts hole 32, pass through the cooperation of bolt hole 32 and screw 33
Track plate 8 is fixed on track plate seat surface 31；Valve seat supporting surface 34,34 He of valve seat supporting surface are equipped in the lower section of track plate 8
Dish plate sealing surface 35 is connected as one, and forms a sphere face；It is characterized by further comprising: dish plate support base 3 is by upper valve rod 2
It is fixed on the valve body 1 with lower valve rod 5；Between the upper valve rod 2 and lower valve rod 5 be filled with filler 9, the filler 9 by
Gland 10, pressing ring 11 compress, and bolt 12, nut 13 carry out fit sealing in valve body 1.
In order to further optimize the above technical scheme, it is equipped with bottom flange 51 in the bottom cover of lower valve rod 5, passes through the lower valve
Lower valve rod 5 is fixed on the valve body 1 by the screw 33 inside lid 51.
In order to further optimize the above technical scheme, the valve seat supporting surface 34 and dish plate sealing surface 35 that dish plate 4 is equipped with connect
It is integrated, forms a spherical.
In order to further optimize the above technical scheme, primary seal 61, auxiliary seal 62, track are provided on main valve seat 6
Interface 63, spring 64 and sealing ring 65；Secondary sealing 71, spring 64 and sealing ring 65 are equipped in 7 one end of auxiliary-seat.
In order to further optimize the above technical scheme, the center of dish plate support base 3 is provided with upper valve rod insertion hole
36。
In order to further optimize the above technical scheme, concrete operating principle are as follows: upper and lower by control rotation when butterfly valve is opened
Valve rod is driven butterfly plate support base and butterfly plate sealing surface, valve seat supporting surface, track plate；In rotary course, track plate pushes master
Orbital docking face on valve seat separates main valve seat with spiral shell plate sealing surface, and valve seat supporting surface is also being close to state with auxiliary-seat
In rotate to open state；When closing, by controlling upper and lower valve rod come rotary drive butterfly plate support base and butterfly plate, track plate, valve
Seat supports face, when rotating to off-position, the sealing surface on main valve seat and auxiliary-seat is close to and shape with the butterfly plate sealing surface on butterfly plate
It is better at dual-seal pressure more high sealing performance.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (5)
1. a kind of double seals butterfly valve, comprising: valve body (1) is from top to bottom disposed with upper valve rod in the inside of the valve body (1)
(2), dish plate support base (3), dish plate (4) and lower valve rod (5)；Wherein, main valve is connected in the end of the dish plate support base (3)
Seat (6) and auxiliary-seat (7)；A track plate seat surface is equipped on the position of auxiliary-seat (7) on the dish plate support base (3)
(31), several bolts hole (32) be which is provided with, it is by the cooperation of the bolt hole (32) and screw (33) that track plate (8) are fixed
To on track plate seat surface (31)；Valve seat supporting surface (34) are equipped in the lower section of the track plate (8), the valve seat supporting surface (34)
It is linked together with dish plate sealing surface (35), forms a sphere face；It is characterized by further comprising: the dish plate support base (3) by
Upper valve rod (2) and lower valve rod (5) are fixed on the valve body (1)；It is filled between the upper valve rod (2) and lower valve rod (5)
Filler (9), the filler (9) are compressed by gland (10), pressing ring (11), and bolt (12), nut (13) carry out fit sealing in valve
In body (1).
2. a kind of double seals butterfly valve according to claim 1, which is characterized in that set in the bottom cover of the lower valve rod (5)
There are bottom flange (51), lower valve rod (5) are fixed on the valve body (1) by the bottom flange (51) internal screw (33).
3. a kind of double seals butterfly valve according to claim 1, which is characterized in that the valve seat branch that the dish plate (4) is equipped with
Support face (34) and dish plate sealing surface (35) are linked together, and form a spherical.
4. a kind of double seals butterfly valve according to claim 1, which is characterized in that be provided with master on the main valve seat (6)
Seal (61), auxiliary seal (62), orbital docking face (63), spring (64) and sealing ring (65)；In the auxiliary-seat (7) one end
Equipped with secondary sealing (71), the spring (64) and sealing ring (65).
5. a kind of double seals butterfly valve according to claim 1, which is characterized in that at the center of the dish plate support base (3)
Position is provided with upper valve rod insertion hole (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176833.3U CN208651651U (en) | 2018-07-24 | 2018-07-24 | A kind of double seals butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176833.3U CN208651651U (en) | 2018-07-24 | 2018-07-24 | A kind of double seals butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208651651U true CN208651651U (en) | 2019-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821176833.3U Active CN208651651U (en) | 2018-07-24 | 2018-07-24 | A kind of double seals butterfly valve |
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| Country | Link |
|---|---|
| CN (1) | CN208651651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762231A (en) * | 2018-07-25 | 2020-02-07 | 自贡新比隆阀门有限公司 | Double-seal butterfly valve |
-
2018
- 2018-07-24 CN CN201821176833.3U patent/CN208651651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762231A (en) * | 2018-07-25 | 2020-02-07 | 自贡新比隆阀门有限公司 | Double-seal butterfly valve |
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