CN209012446U - A kind of middle line butterfly valve - Google Patents
A kind of middle line butterfly valve Download PDFInfo
- Publication number
- CN209012446U CN209012446U CN201821049712.2U CN201821049712U CN209012446U CN 209012446 U CN209012446 U CN 209012446U CN 201821049712 U CN201821049712 U CN 201821049712U CN 209012446 U CN209012446 U CN 209012446U
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- valve
- valve body
- middle line
- steel ring
- hole
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Abstract
The utility model belongs to valve arrangement technical field, more particularly to a kind of middle line butterfly valve, including valve rod, valve body, valve plate, lower cover, the valve plate is set in valve body, upper gland and lower axle bore are provided in the valve body, the upper gland and lower axle bore are through-hole, fixed blind hole is offered on two sidewalls in the upper gland respectively, position offers pilot hole among two sidewalls on the ball steel ring, guide rod is placed in the pilot hole, pilot hole is run through at the both ends of the guide rod, guide rod on the outside of the ball steel ring is fixed with the first position-arresting disk, guide rod inside the ball steel ring is fixed with the second position-arresting disk, the lower axle bore of the valve body of the middle line butterfly valve uses via design, valve body is facilitated to process, axis hole neutral gear is equipped in the middle part of upper gland, it reduces on valve rod and valve body contact area Frictional force.
Description
Technical field
The utility model belongs to valve arrangement technical field more particularly to a kind of middle line butterfly valve.
Background technique
Traditional middle line butterfly valve nominal pressure is no more than 1.6Mpa in the market, with the development of science and technology pipeline pressure
It further increases, existing low pressure butterfly valve product has been unable to meet the demand of user.
Utility model content
The purpose of this utility model is aiming at the above shortcomings existing in the prior art, to propose a kind of middle line butterfly valve.
The utility model solves its technical problem and adopts the following technical solutions realization:
A kind of middle line butterfly valve, including valve rod, valve body, valve plate, lower cover, the valve plate is set in valve body, described
Upper gland and lower axle bore are provided in valve body, the upper gland and lower axle bore are through-hole, in the upper gland
Two sidewalls on offer fixed blind hole respectively, position offers pilot hole among two sidewalls on the ball steel ring, described
Guide rod is placed in pilot hole, pilot hole is run through at the both ends of the guide rod, and the guide rod on the outside of the ball steel ring is fixed with
First position-arresting disk, the guide rod inside the ball steel ring are fixed with the second position-arresting disk, first position-arresting disk and bearing quality steel
Spring is cased on guide rod between circle, the both ends of the spring are fixedly connected with the first position-arresting disk and ball steel ring respectively, described
Ball steel ring is set in upper gland, and the first position-arresting disk is put in fixed blind hole, and the spring is in compressive state always,
Multiple equidistant vertically disposed balls have been respectively embedded on ball steel ring above and below the guide rod；
The valve rod is successively pierced by out of upper gland, ball steel ring, valve plate and inserts in lower axle bore, the lower cover
Intermediate position be equipped with protrusion, in the bottom of the protrusion insertion lower axle bore on the lower cover, the lower cover passes through interior six
The bottom end of angle fillister head screw and valve body connects, and the top in the upper gland of the valve body is equipped with o-ring groove；
The lower edge of the valve body internal upper part axis hole and the top edge of lower axle bore directly vulcanize respectively rubber valve seat, institute
It states rubber valve seat and is equipped with and communicated with upper gland and lower axle bore and coaxial through-hole, through-hole and valve body on the rubber valve seat
Junction be equipped with boss, be respectively equipped with the ring matched with boss in the bottom of the upper gland and the top of lower axle bore
The inner wall of connected in star, the through-hole is equipped with multiple tracks level-one flange.
Further, the contact surface of the rubber valve seat and valve plate is arc surface, rubber valve seat two sides outer surface
Valve body upper flange junction is provided at least twice secondary flange.
Further, O-ring seal is equipped in the o-ring groove.
Further, the one side wall of the valve rod is equipped with keyway, is connected in the keyway by hexagon socket countersunk flat cap head screw
There is key.
Further, the middle line butterfly valve further includes taper bolt, and the valve rod connects by the way that taper bolt and valve plate are fixed
It connects.
Further, the valve body is wafer type valve body or lug type valve body.
Further, the material of the valve body is spheroidal graphite cast-iron.
Further, the ball steel ring is set to the lower section of o-ring groove.
Further, the center line of the fixed blind hole is in horizontally disposed, and the axis of valve rod is vertical.
Compared with prior art, the beneficial effect that the utility model generates is:
(1) traditional middle line butterfly valve nominal pressure is no more than 1.6Mpa in the market, with the development of science and technology pipeline pressure
Power further increases, and existing low pressure butterfly valve product has been unable to meet the demand of user, the utility model by unique design,
So that the application extension of middle line butterfly valve is to the middle pressure field of heavy caliber pressure 2.5Mpa, bore is from 350mm-600mm.
(2) valve body use wafer type or lug type structure, valve body neck portion design be trapezoidal tetrahedron, convenient for driving device with
The bolt of upper flange connects；Front and back two sides is plane, facilitates the product informations such as arrangement mark, typefounding；It is set outside lug type valve body
In respect of reinforcing rib, increase valve body integral strength；The lower axle bore of valve body is via design, and valve body is facilitated to process.
(3) traditional centre-pivoted butterfly valve generally uses PTFE as bearing, for lubricating and supporting valve rod, in the utility model on
Portion's axis hole is designed using bearing-free, since valve body material is spheroidal graphite cast-iron, itself can be used as bearing use.
(4) centre-pivoted butterfly valve prevailing torque is end diameter frictional force and sealing force, therefore ball steel ring is arranged in upper gland,
It contacts valve rod with ball, not only reduces the frictional force on valve rod and valve body contact area, but also the contact by valve rod with ball
For rolling friction, frictional force is equally reduced.
(5) inner wall of upper gland is equipped with o-ring groove, is used to mounting O-shaped sealing ring, prevents external dust and miscellaneous
Object enters valve body by upper gland.
(6) traditional centre-pivoted butterfly valve is to achieve the effect that be easy sealing, and general valve base channel is less than nominal bore, this is practical new
Rubber valve seat channel is designed as all-pass gauge structure in type, ensure that the circulation area of valve, reduces when fluid passes through valve
Flow resistance；Traditional valve seat is the structure of the soft backrest of rubber or the vulcanization of rubber to skeleton, and valve seat is valve body ontology in the utility model
Vulcanization, be suitable for include vacuum environment various corrosivity, non-aggressive medium.
(7) junction of through-hole and valve body is equipped with boss on the rubber valve seat, guarantees the thickness of rubber valve seat end, makes
Valve plate installation and product sealing are more easier；There is appropriate gap between rubber valve seat and valve body upper flange joint face, connects in butterfly valve
Behind adapter tube road, it is displaced, rubber valve seat will not be damaged by pressure by the compression side Shi Kexiang in rubber valve seat.
Detailed description of the invention
The technical solution of the utility model is described in further detail below with reference to drawings and examples, still
It should be known that these attached drawings are designed for task of explanation, therefore not as the restriction of the scope of the utility model.In addition,
Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale
It draws.
The present invention will be further described with reference to the accompanying drawing:
Fig. 1 is the main view of the utility model；
Fig. 2 is the side view of the utility model；
Fig. 3 is valve body vulcanized rubber valve seat schematic diagram；
Fig. 4 is the partial enlarged view in Fig. 3 at A.
Wherein: 1, key；2, valve rod；3, O-ring seal；4, valve body；5, rubber valve seat；6, taper bolt；7, valve plate；8, lower end
Lid；9, hexagon socket cap head screw；10, hexagon socket countersunk flat cap head screw；11, o-ring groove；12, ball steel ring；13, boss；14,
Secondary flange；15, level-one flange；16, upper gland；17, lower axle bore；18, ball；19, fixed blind hole；20, the first limit
Disk；21, spring；22, guide rod；23, the second position-arresting disk.
Specific embodiment
Firstly, it is necessary to which explanation, illustrates the temperature identifier of the utility model for by way of example below
Specific structure, features and advantages etc., however what all descriptions were intended merely to be illustrated, and should not be construed as to this reality
With novel formation any restrictions.In addition, any single technology for being described by or implying in each embodiment mentioned by this paper is special
Sign, or shown or implicit any single technical characteristic in the drawings, still can (or it be equivalent in these technical characteristics
Object) between continue any combination or delete, to obtain the utility model that may do not referred to directly herein more
More other embodiments.In addition, same or like technical characteristic may only exist in the same figure for the sake of simplifying drawing
It is indicated at one.
The utility model is described further below with reference to embodiment:
As shown in Figs 1-4, the utility model provides a kind of middle line butterfly valve, including valve rod 2, valve body 4, valve plate 7, lower end
Lid 8, ball steel ring 12, the valve plate 7 are set in valve body 4, are provided with upper gland 16 and lower axle bore in the valve body 4
17, the upper gland 16 and lower axle bore 17 are through-hole, are offered respectively on the two sidewalls in the upper gland 16 solid
Determine blind hole 19, position offers pilot hole among the two sidewalls on the ball steel ring 12, is placed with guide rod in the pilot hole
22, guide rod 22 can horizontally slip in pilot hole, and pilot hole is run through at the both ends of the guide rod 22,12 outside of ball steel ring
22 one end of guide rod is fixed with the first position-arresting disk 20, and 22 one end of guide rod inside the ball steel ring 12 is fixed with the second position-arresting disk
23, spring 21, the both ends difference of the spring 21 are cased on the guide rod 22 between first position-arresting disk 20 and ball steel ring 12
It is fixedly connected with the first position-arresting disk 20 and ball steel ring 12, the ball steel ring 12 is set in upper gland 16, and the first limit
Position disk 20 is put in fixed blind hole 19, and the spring 21 is in compressive state, the ball above and below the guide rod 22 always
Multiple equidistant vertically disposed balls 18 have been respectively embedded on steel ring 12；
The valve rod 2 is successively pierced by out of upper gland 16, ball steel ring, valve plate 7 and inserts in lower axle bore 17, described
The intermediate position of lower cover 8 is equipped with protrusion, in the bottom of the protrusion insertion lower axle bore 16 on the lower cover 8, the lower end
Lid 8 is connect by hexagon socket cap head screw 9 with the bottom end of valve body 4, and the top in the upper gland 16 of the valve body 4 is equipped with close
Seal groove 11；
The lower edge of the 4 internal upper part axis hole 16 of valve body and the top edge of lower axle bore 17 directly vulcanize respectively rubber valve
Seat 5, the rubber valve seat 5 are equipped with and communicate with upper gland 16 and lower axle bore 17 and coaxial through-hole, the rubber valve seat 5
The junction of upper through-hole and valve body 4 is equipped with boss 13, difference in the bottom of the upper gland 16 and the top of lower axle bore 17
Equipped with the annular groove matched with boss 13, the inner wall of the through-hole is equipped with multiple tracks level-one flange 15.
The contact surface of the rubber valve seat 5 and valve plate 7 is arc surface, the 5 two sides outer surface of rubber valve seat and valve body 4
Upper flange junction is provided at least twice secondary flange 14.
O-ring seal 3 is equipped in the o-ring groove 11.
The one side wall of the valve rod 2 is equipped with keyway, passes through hexagon socket countersunk flat cap head screw 10 in the keyway and is connected with key 1.
The middle line butterfly valve further includes taper bolt 6, and the valve rod 2 is fixedly connected by taper bolt 6 with valve plate 7.
The valve body 4 is wafer type valve body or lug type valve body.
The material of the valve body 4 is spheroidal graphite cast-iron.
The ball steel ring is set to the lower section of o-ring groove.
The center line of the fixed blind hole is in horizontally disposed, and the axis of valve rod is vertical.
The utility model is by unique design, so that the application extension of middle line butterfly valve is to heavy caliber pressure 2.5Mpa
Middle pressure field, for bore from 350mm-600mm, valve body 4 uses wafer type or lug type structure, and 4 neck portion design of valve body is trapezoidal
Tetrahedron, convenient for the bolt of driving device and upper flange connection；Front and back two sides is plane, facilitates the products such as arrangement mark, typefounding
Information, 4 exterior design of valve body of lug type structure have reinforcing rib, increase by 4 integral strength of valve body, and the lower axle bore 17 of valve body 4 is
Via design facilitates valve body 4 to process, and the utility model middle and upper part axis hole 16 is designed using bearing-free, since 4 material of valve body is ball
Black cast iron itself can be used as bearing use, by being equipped with o-ring groove 11 on the inner wall of upper gland 16, for installing
O-ring seal 3, prevents external dust and sundries from entering valve body 4 by upper gland 16, and the channel of rubber valve seat 5 uses full-bore
Structure ensure that the circulation area of valve, reduce flow resistance when fluid passes through valve, pass through through-hole and valve on rubber valve seat 5
Boss 13 is arranged in the junction of body 4, guarantees the thickness of 5 end of rubber valve seat, is more easier the installation of valve plate 7 and product sealing,
There is appropriate gap between 4 upper flange joint face of rubber valve seat 5 and valve body, after butterfly valve connecting pipe, is pressed in rubber valve seat 5
The side contracting Shi Kexiang is displaced, and will not damage rubber valve seat 5 by pressure.
The utility model is described in detail above by embodiment, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (9)
1. a kind of middle line butterfly valve, it is characterised in that: including valve rod, valve body, valve plate, lower cover, ball steel ring, the valve plate
It is set in valve body, upper gland and lower axle bore is provided in the valve body, the upper gland and lower axle bore are logical
Hole offers fixed blind hole on the two sidewalls in the upper gland, position among the two sidewalls on the ball steel ring respectively
Pilot hole is offered, guide rod is placed in the pilot hole, pilot hole, the ball steel ring outside are run through in the both ends of the guide rod
Guide rod be fixed with the first position-arresting disk, the guide rod inside the ball steel ring is fixed with the second position-arresting disk, described
Be cased with spring on guide rod between one position-arresting disk and ball steel ring, the both ends of the spring respectively with the first position-arresting disk and bearing quality steel
Circle is fixedly connected, and the ball steel ring is set in upper gland, and the first position-arresting disk is put in fixed blind hole, and the spring begins
It is in compressive state eventually, multiple equidistant vertically disposed rollings have been respectively embedded on the ball steel ring above and below the guide rod
Pearl；
The valve rod is successively pierced by out of upper gland, ball steel ring, valve plate and inserts in lower axle bore, in the lower cover
Between position be equipped with protrusion, in the bottom of the protrusion insertion lower axle bore on the lower cover, the lower cover is round by interior hexagonal
The bottom end of chapiter screw and valve body connects, and the top in the upper gland of the valve body is equipped with o-ring groove；
The lower edge of the valve body internal upper part axis hole and the top edge of lower axle bore directly vulcanize respectively rubber valve seat, the rubber
Glue valve seat is equipped with and communicates with upper gland and lower axle bore and coaxial through-hole, the company of through-hole and valve body on the rubber valve seat
It meets place and is equipped with boss, it is recessed that the annular matched with boss is respectively equipped in the bottom of the upper gland and the top of lower axle bore
The inner wall of slot, the through-hole is equipped with multiple tracks level-one flange.
2. a kind of middle line butterfly valve according to claim 1, it is characterised in that: contact of the rubber valve seat with valve plate
Face is arc surface, and rubber valve seat two sides outer surface and valve body upper flange junction are provided at least twice secondary flange.
3. a kind of middle line butterfly valve according to claim 1, it is characterised in that: be equipped in the o-ring groove O-shaped
Sealing ring.
4. a kind of middle line butterfly valve according to claim 1, it is characterised in that: the one side wall of the valve rod is equipped with key
Slot, the keyway is interior to be connected with key by hexagon socket countersunk flat cap head screw.
5. a kind of middle line butterfly valve according to claim 1, it is characterised in that: the middle line butterfly valve further includes circle
Taper pin, the valve rod are fixedly connected by taper bolt with valve plate.
6. a kind of middle line butterfly valve according to claim 1, it is characterised in that: the valve body is wafer type valve body or convex
Ear formula valve body.
7. a kind of middle line butterfly valve according to claim 1, it is characterised in that: the material of the valve body is spheroidal graphite casting
Iron.
8. a kind of middle line butterfly valve according to claim 1, it is characterised in that: the ball steel ring is set to sealing ring
The lower section of groove.
9. a kind of middle line butterfly valve according to claim 1, it is characterised in that: the center line of the fixed blind hole is in water
Flat setting, and the axis of valve rod is vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821049712.2U CN209012446U (en) | 2018-07-04 | 2018-07-04 | A kind of middle line butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821049712.2U CN209012446U (en) | 2018-07-04 | 2018-07-04 | A kind of middle line butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209012446U true CN209012446U (en) | 2019-06-21 |
Family
ID=66829233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821049712.2U Active CN209012446U (en) | 2018-07-04 | 2018-07-04 | A kind of middle line butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209012446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854044A (en) * | 2023-02-27 | 2023-03-28 | 西安高压阀门厂集团有限公司 | Super wear-resistant control valve |
-
2018
- 2018-07-04 CN CN201821049712.2U patent/CN209012446U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854044A (en) * | 2023-02-27 | 2023-03-28 | 西安高压阀门厂集团有限公司 | Super wear-resistant control valve |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |