CN205841802U - Plough groove type centre-pivoted butterfly valve - Google Patents
Plough groove type centre-pivoted butterfly valve Download PDFInfo
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- CN205841802U CN205841802U CN201620720655.0U CN201620720655U CN205841802U CN 205841802 U CN205841802 U CN 205841802U CN 201620720655 U CN201620720655 U CN 201620720655U CN 205841802 U CN205841802 U CN 205841802U
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Abstract
The utility model discloses a kind of plough groove type centre-pivoted butterfly valve, relate to the butterfly valve technical field in pipeline valve, its structure includes valve body, butterfly plate, valve rod and handle etc., mainly the sealing structure on butterfly plate is improved, it is butterfly plate to be first designed as outer surface be coated with the disc-shaped structure of sealant completely, the connecting shaft being vertically arranged along its diametric(al) it is provided with again in the middle part of butterfly plate, then on the sealant of connecting shaft end face, design end face dual-seal line and on the outer circumference surface of butterfly plate, design periphery dual-seal line, therefore the dual-seal line on butterfly plate end face and outer circumference surface all can and the hole wall of limbers between constitute and movable contact sealing cooperation, even if being not easy to leakage by the double direction impulse of hydraulic pressure in pipeline, thus improve the sealing property of butterfly plate.
Description
Technical field
This utility model relates to the butterfly valve technical field in a kind of pipeline valve, specifically refers to plough groove type centre-pivoted butterfly valve.
Background technology
Plough groove type centre-pivoted butterfly valve is typically mounted in water supply and sewerage pipeline system, primarily serves convection cell and cuts off and throttle
Effect.At present, most plough groove type centre-pivoted butterfly valve is all to be made up of valve body, butterfly plate, valve rod and handle etc., and handle is connected to
Valve rod upper end, butterfly plate be connected to valve rod lower end and be arranged on valve body limbers in, only need turning handle can drive through valve rod
Butterfly plate rotates in limbers, then the outer circumference surface of butterfly plate once completely attaches to the hole wall of limbers, then valve closing；Butterfly plate
Outer circumference surface once hole wall with limbers disengages, then valve is opened；Therefore, the open/close states of valve and keying reliability
All realized by butterfly plate, therefore structure is sealed for butterfly plate and the most just proposes higher design requirement.But, traditional butterfly
Plate is to form single seal line by a circle sealant of cladding on outer circumference surface, and the butterfly plate end face being connected with valve rod is the most not
Make Seal Design, thus in being easily subject to pipeline time actually used the double direction impulse of hydraulic pressure and cause end face, the leaking of side, exist
The defect that sealing property is less reliable.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defect of prior art to provide a kind of sealing property
Good plough groove type centre-pivoted butterfly valve.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of plough groove type centre-pivoted butterfly valve, including in set the valve body of limbers, the butterfly plate being arranged in limbers, rotary seal
The valve rod being arranged in valve body and the handle being arranged on body top, described valve rod upper end is stretched out valve body and is connected handle, valve rod
Lower end connects butterfly plate, and drives butterfly plate rotary seal to open and close limbers, and described butterfly plate is that an outer surface is coated with close completely
The disc-shaped structure of sealing, is provided with the connecting shaft being vertically arranged along its diametric(al) in the middle part of butterfly plate, this connecting shaft end face close
Sealing is provided with end face dual-seal line, and the outer circumference surface of butterfly plate is provided with periphery dual-seal line；Described end face is dual
Seal line, periphery dual-seal line all constitute movable contact and seal cooperation with the hole wall of described limbers.
The sealant of described connecting shaft end face is provided with the big arcwall face of indent, and this big arcwall face has and lays respectively at butterfly
Plate both sides the little arcwall face of contour evagination, two described little arcwall faces constitute the hole wall work activity with described limbers
Formula contact seals the end face dual-seal line coordinated.
The sealant of described butterfly plate outer circumference surface be provided with a circle radially around concave side arcwall face, this side arcwall face
Having the side seal line laying respectively at butterfly plate both sides contour evagination, two described side seal lines constitute and described water flowing
The hole wall in hole is made movable contact and is sealed the periphery dual-seal line coordinated.
Being provided with the connecting hole run through axially up and down in described connecting shaft, described valve rod is connected in described connecting hole.
Flat axle, the transmission connecting structure in flat hole it is set between described valve rod lower end and connecting hole.
Described valve body end face is provided with tooth plate, and handle is provided with spanner, is provided with top mutually between this spanner outer end and handle
The back-moving spring pushed away, the inner and described tooth plate of spanner constitutes the position relationship engaging or departing from.
Compared with prior art, the sealing structure on butterfly plate is mainly improved by this utility model, and it is first will
Butterfly plate is designed as outer surface and is coated with the disc-shaped structure of sealant completely, then be provided with in the middle part of butterfly plate along its diametric(al) vertical
The connecting shaft arranged, then designs end face dual-seal line and on the sealant of connecting shaft end face on the outer circumference surface of butterfly plate
Design periphery dual-seal line, thus the dual-seal line on butterfly plate end face and outer circumference surface all can and the hole wall of limbers between
Constituting movable contact and seal cooperation, even if being not easy to leakage by the double direction impulse of hydraulic pressure in pipeline, thus improving butterfly plate
Sealing property.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 is the sectional structure schematic diagram of butterfly plate.
Fig. 3 is the A A sectional view of Fig. 2.
Fig. 4 is the B B sectional view of Fig. 2.
Fig. 5 is the axonometric chart of Fig. 2.
Detailed description of the invention
By above-mentioned accompanying drawing, this utility model embodiment will be elaborated again below.
As shown in Fig. 1 ~ Fig. 5,1. butterfly plate, 11. connecting shafts, 12. connecting holes, 2. valve body, 21. limbers, 22. grooves, 23.
Hex nut, 24. hexagon-headed bolts, 3. sealant, 31. end face dual-seal lines, 311. big arcwall faces, 312. little arcwall faces,
32. periphery dual-seal lines, 321. side arcwall faces, 322. side seal lines, 4. valve rod, 41. two pass "O"-rings, 42. axle bullets
Property back-up ring, 43. plain washers, 5. tooth plate, 6. handle, 7. spanner, 8. back-moving spring.
Plough groove type centre-pivoted butterfly valve, is primarily adapted for use in water factory, power plant, steel mill's smelting, chemical industry, water source project, environmental facility are built
If Deng System drainage use, it is particularly suited on water channel pipeline, uses as regulation and the equipment that dams, and have high pressure resistant, use
The advantages such as good stability.
Its structure is mainly made up of valve body 2, butterfly plate 1, valve rod 4 and handle 6 etc..
Wherein, in valve body 2, it is provided with the through limbers of level 21, is respectively arranged at two ends with groove 22 in limbers, its energy
Improve the simple installation of valve, when mounted only need to by groove clamping hoop coordinate groove 22 valve can be quickly installed to
On drainage pipeline.
Described valve rod 4 is arranged in valve body 2 by the vertical rotary seal of two pass "O"-ring 41, and by the axle at top
Position with circlip 42 and plain washer 43, then given by the tooth plate 5 being fixedly mounted in valve body 2 top on flange face
Install fixing, between tooth plate with valve body 2, be provided with fixing hexagon-headed bolt 24, hex nut 23 and the spring washer being connected；Meanwhile,
Outer rim at tooth plate 5 is additionally provided with a circle teeth groove.
Described valve rod 4 upper end is the exposed junction stretching out valve body 2, and described handle 6 makees fixing company with the exposed junction of valve rod 4
Connect, therefore turning handle 6 can band ovable valve stem 4 synchronous axial system；And be additionally provided with middle part on handle and be hinged on handle 6 and formed and lift up
The spanner 7 of plate structure, the outer end stuck up outside this spanner mainly as pressing operation end, and and handle between be provided with answering of mutual pushing tow
Position spring 8, inner and on tooth plate 5 the circle teeth groove of spanner 7 constitutes the position relationship engaging or departing from.Specifically: when pressing is pulled
Hands 7 outer end, then spanner the inner departs from teeth groove, and handle 6 can rotate by band ovable valve stem 4；When release spanner 7 outer end by pressure, then multiple
Position spring 8 pushing tow makes spanner 7 inner engagement teeth groove, then handle 6 cannot rotating operation.
Described valve rod 4 lower end is connected with the butterfly plate 1 in limbers 21, and this butterfly plate is that an outer surface is coated with completely
The disc-shaped structure of rubber sealant 3, is provided with the connecting shaft 11 being vertically arranged along its diametric(al) in the middle part of butterfly plate 1, and this is even
It is provided with the connecting hole 12 run through axially up and down in spindle, and valve rod 4 is connected in connecting hole 12, be set to flat axle, flat between the two
The transmission connecting structure in hole, therefore valve rod 4 rotates and just can drive butterfly plate 1 synchronous axial system.
The sealant 3 of described connecting shaft 11 end face is provided with end face dual-seal line 31, specifically: connecting shaft 11 end face
Sealant 3 is provided with the big arcwall face 311 of indent, and this big arcwall face has and lays respectively at the little of butterfly plate 1 both sides contour evagination
Arcwall face 312, two little arcwall faces just constitute to be made with the hole wall of limbers 21 movable to contact that to seal the end face coordinated dual
Seal line 31.
The outer circumference surface of described butterfly plate 1 is provided with periphery dual-seal line 32, specifically: butterfly plate 1 outer circumference surface close
Sealing 3 be provided with a circle radially around concave side arcwall face 321, this side arcwall face have lay respectively at butterfly plate 1 both sides and etc.
The side seal line 322 of high evagination, two side seal lines just constitute to be made with the hole wall of limbers 21 movable to contact sealing and coordinate
Periphery dual-seal line 32.
Therefore, end face dual-seal line 31 is by the hole wall being close to limbers 21 all the time, then at the rotation process of butterfly plate 1
In can play dual sealing functions.And when valve rod 4 drives butterfly plate 1 to rotate, the once periphery dual-seal line 32 of butterfly plate
Contact with the hole wall of limbers 21, define dual sealing functions, then valve enters closed mode；The once cylindrical of butterfly plate 1
Face dual-seal line 32 departs from the hole wall of limbers 21, then valve enters opening.
End face dual-seal line 31 of the present utility model, periphery dual-seal line 32 are all constituted with the hole wall of limbers 21
Movable contact seals and coordinates, even if therefore be not easy to leakage by the double direction impulse of hydraulic pressure in pipeline, thus improve butterfly plate 1
Sealing property.
The above is only better embodiment of the present utility model, it should be appreciated by those skilled in the art that any and is somebody's turn to do
The structure design of embodiment equivalent, or make according to structure, feature and principle described in this utility model patent claim etc.
Effect change or modification, within should be included in protection domain of the present utility model.
Claims (6)
1. a plough groove type centre-pivoted butterfly valve, including in set limbers (21) valve body (2), the butterfly plate (1) being arranged in limbers,
Valve rod (4) that rotary seal is arranged in valve body (2) and be arranged on the handle (6) at valve body (2) top, on described valve rod (4)
End stretches out valve body and connects handle (6), and valve rod (4) lower end connects butterfly plate (1), and drives butterfly plate rotary seal to open and close limbers
(21), it is characterised in that described butterfly plate (1) is the disc-shaped structure that an outer surface is coated with sealant (3) completely, butterfly
Plate (1) middle part is provided with the connecting shaft (11) being vertically arranged along its diametric(al), and the sealant (3) of this connecting shaft end face is provided with top
Face dual-seal line (31), the outer circumference surface of butterfly plate (1) is provided with periphery dual-seal line (32)；Described end face is dual close
Envelope line (31), periphery dual-seal line (32) all constitute movable contact and seal cooperation with the hole wall of described limbers (21).
Plough groove type centre-pivoted butterfly valve the most according to claim 1, it is characterised in that the sealing of described connecting shaft (11) end face
Layer (3) is provided with the big arcwall face (311) of indent, and this big arcwall face has and lays respectively at butterfly plate (1) both sides contour evagination
Little arcwall face (312), the hole wall that two described little arcwall faces (312) constitute with described limbers (21) makees movable contact
Seal end face dual-seal line (31) coordinated.
Plough groove type centre-pivoted butterfly valve the most according to claim 1, it is characterised in that the sealing of described butterfly plate (1) outer circumference surface
Layer (3) be provided with a circle radially around concave side arcwall face (321), this side arcwall face have lay respectively at butterfly plate (1) both sides,
And the side seal line (322) of contour evagination, the hole wall that two described side seal lines constitute with described limbers (21) is lived
Dynamic formula contact seals periphery dual-seal line (32) coordinated.
Plough groove type centre-pivoted butterfly valve the most according to claim 1, it is characterised in that be provided with upper and lower in described connecting shaft (11)
The connecting hole (12) axially penetrated through, described valve rod (4) is connected in described connecting hole (12).
Plough groove type centre-pivoted butterfly valve the most according to claim 4, it is characterised in that described valve rod (4) lower end and connecting hole
(12) flat axle, the transmission connecting structure in flat hole it are set between.
Plough groove type centre-pivoted butterfly valve the most according to claim 1, it is characterised in that described valve body (2) end face is provided with tooth plate
(5), handle (6) is provided with spanner (7), is provided with the back-moving spring (8) of mutual pushing tow, pulls between this spanner outer end and handle (6)
Inner and the described tooth plate of hands (5) constitutes the position relationship engaging or departing from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720655.0U CN205841802U (en) | 2016-07-11 | 2016-07-11 | Plough groove type centre-pivoted butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720655.0U CN205841802U (en) | 2016-07-11 | 2016-07-11 | Plough groove type centre-pivoted butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841802U true CN205841802U (en) | 2016-12-28 |
Family
ID=57618620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620720655.0U Active CN205841802U (en) | 2016-07-11 | 2016-07-11 | Plough groove type centre-pivoted butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841802U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826963A (en) * | 2019-02-20 | 2019-05-31 | 郑兴 | A kind of butterfly valve that band feedback compresses |
| CN109854761A (en) * | 2019-04-08 | 2019-06-07 | 江苏神通阀门股份有限公司 | A kind of valve base sealing structure of butterfly valve |
-
2016
- 2016-07-11 CN CN201620720655.0U patent/CN205841802U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826963A (en) * | 2019-02-20 | 2019-05-31 | 郑兴 | A kind of butterfly valve that band feedback compresses |
| CN109854761A (en) * | 2019-04-08 | 2019-06-07 | 江苏神通阀门股份有限公司 | A kind of valve base sealing structure of butterfly valve |
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| GR01 | Patent grant |