CN208670082U - A kind of three core shift butterfly valves - Google Patents
A kind of three core shift butterfly valves Download PDFInfo
- Publication number
- CN208670082U CN208670082U CN201821212600.4U CN201821212600U CN208670082U CN 208670082 U CN208670082 U CN 208670082U CN 201821212600 U CN201821212600 U CN 201821212600U CN 208670082 U CN208670082 U CN 208670082U
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- China
- Prior art keywords
- valve
- ring
- valve rod
- positioning
- valve body
- 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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- 239000012530 fluid Substances 0.000 claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 239000011324 bead Substances 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 6
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 210000005069 ears Anatomy 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a kind of three core shift butterfly valves, belong to valve technology field, and including offering the valve body of fluid channel, rotation is installed on valve body and the valve rod that is vertically threaded onto fluid channel and is installed on flap on valve rod and for fluid channel to be truncated；Axially spaced-apart offers multiple seal grooves on the outer peripheral surface of the valve rod, and the sealing ring being bonded with valve body is embedded in each seal groove；The side of the flap circumferentially offers a limited ring groove, gasket ring is embedded in limited ring groove, the valve body is provided with the position limiting convex ring being bonded with gasket ring circumferential surface in the inner wall of fluid channel, the lateral circle surface that position limiting convex ring is bonded with gasket ring is obliquely installed, and the diameter on position limiting convex ring circumferential surface is gradually increased along fluid flow direction.The utility model solves the problems, such as that existing butterfly valve is easy to happen leakage in use, improves the sealing performance of butterfly valve.
Description
Technical field
The utility model belongs to valve technology field, in particular to a kind of three core shift butterfly valves.
Background technique
Butterfly valve is a kind of relatively simple valve of structure, and it is each to be mainly used for water in pipeline, various corrosive medias, mud etc.
The cutting or throttling action of kind fluid.
Existing butterfly valve is typically made of a plastic, referring to Fig. 1 and Fig. 2, valve body 1, rotation including offering fluid channel 11
Turn to be installed on valve body 1 and the valve rod 2 that is vertically threaded onto fluid channel 11 and be installed on valve rod 2 and for fluid to be truncated
The flap 3 in channel 11.The butterfly valve passes through rotation valve rod 2 when in use to drive the rotation of flap 3, realizes cutting for fluid with this
Disconnected or throttling.However, in above-mentioned butterfly valve in use, the fluid in butterfly valve is easy to happen leakage, so that butterfly valve
Sealing performance is poor.
Utility model content
The purpose of the utility model is to provide a kind of three core shift butterfly valves, and which solve existing butterfly valves to hold in use
The problem of easily leaking, improves the sealing performance of butterfly valve.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of three core shift butterfly valves, including offering the valve body of fluid channel, rotation is installed on valve body and is vertically threaded onto
Valve rod in fluid channel and it is installed on flap on valve rod and for fluid channel to be truncated；Axis on the outer peripheral surface of the valve rod
Multiple seal grooves are equipped with to being spaced apart, are embedded with the sealing ring being bonded with valve body in each seal groove；The side week of the flap
To a limited ring groove is offered, gasket ring is embedded in limited ring groove, the valve body is provided in the inner wall of fluid channel
The position limiting convex ring being bonded with gasket ring circumferential surface, the lateral circle surface that position limiting convex ring is bonded with gasket ring are obliquely installed, and are limited
Diameter on bulge loop circumferential surface is gradually increased along fluid flow direction.
Using the above scheme, when in use, rotation valve rod, valve rod drives flap to be revolved by rotation center of valve rod to butterfly valve
Turn, realizes the opening and closing of butterfly valve；During rotation, multiple sealing rings are correspondingly embedded in the seal groove of valve rod simultaneously valve rod
It is bonded with valve body, the gap between valve rod and valve body is truncated by multistage with this, it is existing to slow down generation capillary between valve rod and valve body
As so that fluid is difficult to the successional gap along valve rod and valve body and flows outwardly；At the same time, limit gasket ring is embedded in limit
It is bonded in the annular groove of position and with position limiting convex ring, effectively to flap is flowed to and the fluid in valve body gap is intercepted, furthermore position limiting convex ring
It is obliquely installed with gasket ring, so that being deposited between the gap path that the direction of fluid flowing and gasket ring and position limiting convex ring are formed
In angle, so as to play the role of certain choked flow, increase flap to the cutting effect of fluid；With this in sealing ring and gasket
Under the action of ring, a possibility that fluid is revealed is effectively reduced, effectively increases the sealing performance of butterfly valve.
Further preferably are as follows: the axis direction and the vertical diameter parallel of fluid channel of the valve rod, and the axis of valve rod
Positioned at the side of the axis of fluid channel.
Using the above scheme, valve rod is located at eccentric position in the fluid passage, and flap is divided into two parts of size with this,
When fluid circulation, the big part of flap is rotated towards fluid flow direction, while the small part of flap is towards fluid flow direction
Reverse rotation, flap is reduced in the frictional force in rotary course between position limiting convex ring and gasket ring with this, facilitate valve rod with
And the rotation of flap；In addition, valve rod eccentric setting, moreover it is possible to effectively flap is prevented to rotate excessively and the phenomenon that rotational slippage occur,
Increase the structural stability between flap and valve body.
Further preferably are as follows: the flap includes choke block and several locating pieces for being installed on choke block side, described fixed
The fixation hole worn for the valve rod is offered on the block of position.
Using the above scheme, valve rod is arranged in fixation hole, so that choke block is located at the side of valve body, choke block is in valve rod
Drive under carry out eccentric rotary in the fluid passage, prevent to form fixed dead angle between flap and fluid channel, reduce one
The fluid containing solid particle is piled up in dead angle in the circulation process a bit, is more preferably flowed in the fluid passage with this convenient for fluid
It is dynamic.
Further preferably are as follows: the locating piece along valve rod axially spaced-apart setting there are two.
Using the above scheme, the active force of valve rod, preferably can uniformly be dispersed to by two positioning block gap settings
On choke block, so that choke block is smoothly rotated using valve rod as rotation center.
Further preferably are as follows: the seal groove offers two along the axially spaced-apart of valve rod.
Using the above scheme, there are two seal groove is spaced apart and sets, while guaranteeing butterfly valve good sealing performance with this, also
The installation resistance of energy valve rod, facilitates the Fast Installation of valve rod, while reducing cost output of the butterfly valve on sealing ring.
Further preferably are as follows: valve rod includes sequentially connected first positioning region, mounting portion, the second positioning region and driving
Portion；Locating slot and positioning through hole are offered on the valve body, and locating slot and positioning through hole are located at the opposite of fluid channel radial direction
Two sides；First positioning region pass through positioning through hole and with locating slot rotary clamping, the flap is fixedly installed on mounting portion,
Second positioning region is arranged in positioning through hole, the sealing ring be clamped in the second positioning region and positioning through hole hole wall it
Between, the driving part is in the outside of valve body.
Using the above scheme, in locating slot, the second positioning region is arranged in positioning through hole the first positioning region rotary clamping
And sealed by sealing ring, a possibility that fluid is revealed along the gap between valve rod and valve body is reduced, is simultaneously
Mounting portion provides good supporting role, convenient in flap stable installation and valve rod；Driving part passes through in the outside of valve body
Rotary driving part realizes the rotation of valve rod with this.
Further preferably are as follows: the outer peripheral surface of second positioning region towards the first positioning region side offer limit it is recessed
Slot is correspondingly arranged on the retention bead being connected in limiting groove on the valve body.
Using the above scheme, retention bead is connected in limiting groove, so that the second positioning region be limited, prevents the
One positioning region generates extruding close to and to the slot bottom of locating slot along the slot bottom of axis direction toward locating slot, reduces by the first positioning region
The abrasion of end.
Further preferably are as follows: space protrusion has several mounting ears on the inner peripheral surface of the gasket ring, and the flap is limiting
The slot bottom of position annular groove offers the mounting groove for mounting ear insertion.
Using the above scheme, mounting ear is embedded in mounting groove, and the structure increased when gasket ring is installed on flap is steady
It is qualitative, while mounting ear is also tender carries out circumferential limit to gasket ring, reduces and relatively rotates between gasket ring and flap,
Butterfly valve is increased to the cutting effect of fluid.
Further preferably are as follows: the flap is provided with the positioning column of connection mounting groove opposite sides cell wall in mounting groove,
The side at the mounting ear towards gasket ring center offers the location hole worn for positioning column.
Using the above scheme, positioning column is arranged in location hole, so that the connection increased between gasket ring and flap is strong
Degree, is installed on flap so that gasket ring is stable, reduces and relatively rotates between gasket ring and flap, increases butterfly
Cutting effect of the valve to fluid.
In conclusion the utility model has the following beneficial effects:
1, the utility model is by multiple seal grooves and the gasket that is embedded in seal groove, slow down valve rod and valve body it
Between generate capillary phenomenon, at the same time by gasket ring, position limiting convex ring and gasket ring being bonded side with position limiting convex ring
Circumferential surface be obliquely installed, increase flap to the cutting effect of fluid, so that a possibility that fluid is revealed be effectively reduced,
Improve the sealing performance of butterfly valve；
2, the utility model is by including the first positioning region, mounting portion, the second positioning region, driving portion, in conjunction with limit
Groove and retention bead are threaded onto valve rod is stable in valve body, are reduced fluid and are occurred along the gap between valve rod and valve body
A possibility that leakage；
3, the utility model passes through the setting of mounting ear, mounting groove, positioning column and location hole, so that gasket ring is stablized
Be installed on flap, reduce and relatively rotate between gasket ring and flap, and the installation that flap is stable by locating piece
In on valve rod, so that butterfly valve has good cutting effect to fluid.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing butterfly valve；
Fig. 2 is the schematic diagram of internal structure of existing butterfly valve；
Fig. 3 is the structural schematic diagram of the utility model；
Fig. 4 is the internal structure perspective view of the explosion of the utility model；
Fig. 5 is the structural schematic diagram of flap and gasket ring in the utility model.
In figure, 1, valve body；2, valve rod；3, flap；4, sealing ring；5, gasket ring；11, fluid channel；12, locating slot；
13, positioning through hole；14, retention bead；15, position limiting convex ring；21, the first positioning region；22, mounting portion；23, the second positioning region；
231, seal groove；232, limiting groove；24, driving portion；31, choke block；311, limited ring groove；312, mounting groove；313, it positions
Column；32, locating piece；321, fixation hole；51, mounting ear；511, mounting hole.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of three core shift butterfly valves, referring to Fig. 3, including laterally offering the valve body 1 of fluid channel 11, rotation is installed on valve body
On 1 and it is threaded onto the valve rod 2 at 11 middle part of fluid channel and is installed on the flap 3 on valve rod 2 and for fluid channel 11 to be truncated,
Solve the problems, such as that existing butterfly valve is easy to happen leakage in use.
Referring to Fig. 3 and Fig. 4,2 axis direction of valve rod and the vertical diameter parallel of fluid channel 11, and the axis position of valve rod 2
Effectively flap 3 is prevented to revolve so that valve rod 2 is located at eccentric position in fluid channel 11 in the side of the axis of fluid channel 11
Degree of turning over and there is the phenomenon that rotational slippage.Valve rod 2 includes sequentially connected first positioning region 21, the positioning of mounting portion 22, second
Portion 23 and driving portion 24；A locating slot 12 and a positioning through hole 13 are offered on valve body 1, and locating slot 12 and positioning are logical
Hole 13 is located at the radial opposite sides of fluid channel 11.First positioning region 21 pass through positioning through hole 13 and with 12 revotating card of locating slot
It connects, the second positioning region 23 is arranged in positioning through hole 13, so that mounting portion 22 is arranged in fluid channel 11 for flap 3
Fixed installation.
The axially spaced-apart on the outer peripheral surface of the second positioning region 23 of valve rod 2 offers two seal grooves 231, each seal groove
A sealing ring 4 is embedded in 231, and sealing ring 4 is located at the side of 231 opening of seal groove and is bonded with valve body 1, so that sealing
Circle 4 is clamped between the second positioning region 23 and the hole wall of positioning through hole 13, solves existing butterfly valve in use with this
It is easy to form the problem of gap location leaks from valve rod 2 and valve body 1.
The outer peripheral surface of second positioning region 23 is being also provided with a limiting groove 232 towards the side of the first positioning region 21,
Valve body 1 is correspondingly arranged on the retention bead 14 being connected in limiting groove 232 at positioning through hole 13, to prevent the first positioning
Portion 21 generates extruding close to and to the slot bottom of locating slot 12 along the slot bottom of axis direction toward locating slot 12, reduces by the first positioning region
The abrasion of 21 ends.
Driving portion 24 is located at the outside of valve body 1, can select corresponding handwheel, motor gearbox according to the actual conditions of butterfly valve
Or other driving structures.
Flap 3 is plastic part, including discoid choke block 31 and two locating pieces 32 for being installed on 31 side of choke block.
Two locating pieces 32 are arranged along the axially spaced-apart of valve rod 2, and one is offered on each locating piece 32 and is worn for mounting portion 22
Fixation hole 321 makes choke block 31 be located at the side of valve body 1, the rotation lid eccentric under the drive of valve rod 2 of choke block 31 with this
Together in a side opening of fluid channel 11, to prevent to form fixed dead angle between flap 3 and fluid channel 11.
Choke block 31 is circumferential to offer a limited ring groove 311, and a gasket ring 5 is embedded in the limited ring groove 311,
Valve body 1 is provided with the position limiting convex ring 15 being bonded with 5 circumferential surface of gasket ring in the inner wall of fluid channel 11.Wherein, position limiting convex ring 15
It is made of rubber, the side being bonded with gasket ring 5 is obliquely installed, and the diameter on 15 circumferential surface of position limiting convex ring is along fluid stream
Dynamic direction is gradually increased, and so as to play the role of certain choked flow to fluid, increases choke block 31 to the cutting effect of fluid.
Referring to Fig. 5, space protrusion has several mounting ears 51 on the inner peripheral surface of gasket ring 5, and choke block 31 is in limited ring groove
311 slot bottom is corresponding to offer the mounting groove 312 being embedded in for mounting ear 51.Choke block 31 is also set up in each mounting groove 312
There is the positioning column 313 of a connection 312 opposite sides cell wall of mounting groove, the side at mounting ear 51 towards 5 center of gasket ring is opened
Equipped with a mounting hole 511, for wearing for positioning column 313 so that gasket ring 5 it is stable be installed on choke block 31
On.Flap 3 in process of production, is first poured the side of choke block 31, sealed loop-pad 5 is placed in the one of 31 injection molding of intercepter plate
After on side, then it is poured the other side of choke block 31, gasket ring 5 is firmly installed on choke block 31 with this.
When opened butterfly valve, rotation valve rod 2, valve rod 2 drives flap 3 to be rotated with valve rod 2 for rotation center, so that throttling
The plate face of plate 31 is axial parallel with fluid channel 11, in order to the circulation of fluid.When closing butterfly valve, valve rod 2 is rotated backward, is made
Plate face and the fluid channel 11 of choke block 31 axially vertical, while the circumferential surface of the circumferential surface of gasket ring 5 and position limiting convex ring 15
Fitting, effectively throttles to fluid with this.Wherein, during rotation, two sealing rings 4 are correspondingly embedded in the close of valve rod 2 valve rod 2
It is bonded in sealing groove 231 and with valve body 1, so that a possibility that fluid is revealed be effectively reduced, improves the sealing performance of butterfly valve.
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 (9)
1. a kind of three core shift butterfly valves, including offering the valve body (1) of fluid channel (11), rotation is installed on valve body (1) and is erected
To the valve rod (2) being threaded onto fluid channel (11) and it is installed on valve rod (2) and the valve for fluid channel (11) to be truncated
Valve (3)；It is characterized in that, axially spaced-apart offers multiple seal grooves (231), each sealing on the outer peripheral surface of the valve rod (2)
The sealing ring (4) being bonded with valve body (1) is embedded in slot (231)；The side of the flap (3) circumferentially offers a stop collar
Slot (311), limited ring groove (311) is interior to be embedded with gasket ring (5), and the valve body (1) is arranged in the inner wall of fluid channel (11)
There are the position limiting convex ring (15) being bonded with gasket ring (5) circumferential surface, the lateral circle surface that position limiting convex ring (15) is bonded with gasket ring (5)
It is obliquely installed, and the diameter on position limiting convex ring (15) circumferential surface is gradually increased along fluid flow direction.
2. a kind of three core shifts butterfly valve according to claim 1, which is characterized in that the axis direction and stream of the valve rod (2)
The vertical diameter parallel in body channel (11), and the axis of valve rod (2) is located at the side of the axis of fluid channel (11).
3. a kind of three core shifts butterfly valve according to claim 1, which is characterized in that the flap (3) includes choke block (31)
With several locating pieces (32) for being installed on choke block (31) side, offers on the locating piece (32) and worn for the valve rod (2)
If fixation hole (321).
4. a kind of three core shifts butterfly valve according to claim 3, which is characterized in that the locating piece (32) is along valve rod (2)
Axially spaced-apart setting there are two.
5. a kind of three core shifts butterfly valve according to claim 1, which is characterized in that the seal groove (231) is along valve rod (2)
Axially spaced-apart offer two.
6. a kind of three core shifts butterfly valve according to claim 1, which is characterized in that valve rod (2) includes sequentially connected first
Positioning region (21), mounting portion (22), the second positioning region (23) and driving portion (24)；Locating slot is offered on the valve body (1)
(12) and positioning through hole (13), and locating slot (12) and positioning through hole (13) are located at the opposite sides of fluid channel (11) radial direction；
First positioning region (21) pass through positioning through hole (13) and with locating slot (12) rotary clamping, the flap (3) is fixedly mounted
In on mounting portion (22), second positioning region (23) is arranged in positioning through hole (13), and the sealing ring (4) is clamped in second
Between positioning region (23) and the hole wall of positioning through hole (13), the driving portion (24) is located at the outside of valve body (1).
7. a kind of three core shifts butterfly valve according to claim 6, which is characterized in that the outer peripheral surface of second positioning region (23)
It is offered limiting groove (232) towards the side of the first positioning region (21), is correspondingly arranged on the valve body (1) and is connected in limit
Retention bead (14) in position groove (232).
8. a kind of three core shifts butterfly valve according to claim 1, which is characterized in that on the inner peripheral surface of the gasket ring (5)
Space protrusion has several mounting ears (51), and the flap (3) offers in the slot bottom of limited ring groove (311) for the mounting ear
(51) mounting groove (312) being embedded in.
9. a kind of three core shifts butterfly valve according to claim 8, which is characterized in that the flap (3) is in mounting groove (312)
It is provided with the positioning column (313) of connection mounting groove (312) opposite sides cell wall, the mounting ear (51) is towards gasket ring (5)
The side at center offers the location hole worn for positioning column (313).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212600.4U CN208670082U (en) | 2018-07-27 | 2018-07-27 | A kind of three core shift butterfly valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821212600.4U CN208670082U (en) | 2018-07-27 | 2018-07-27 | A kind of three core shift butterfly valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208670082U true CN208670082U (en) | 2019-03-29 |
Family
ID=65832019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821212600.4U Expired - Fee Related CN208670082U (en) | 2018-07-27 | 2018-07-27 | A kind of three core shift butterfly valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208670082U (en) |
-
2018
- 2018-07-27 CN CN201821212600.4U patent/CN208670082U/en not_active Expired - Fee Related
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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: 20190329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |