CN206409666U - A kind of integral type cast steel ball valve - Google Patents
A kind of integral type cast steel ball valve Download PDFInfo
- Publication number
- CN206409666U CN206409666U CN201720067388.6U CN201720067388U CN206409666U CN 206409666 U CN206409666 U CN 206409666U CN 201720067388 U CN201720067388 U CN 201720067388U CN 206409666 U CN206409666 U CN 206409666U
- Authority
- CN
- China
- Prior art keywords
- cast steel
- valve
- valve rod
- double eccentric
- bonnet
- 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
Links
- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 88
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 15
- 239000010439 graphite Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 230000013011 mating Effects 0.000 claims abstract description 7
- 210000004907 gland Anatomy 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model provides a kind of integral type cast steel ball valve, including cast steel valve body, cast steel bonnet, stud one, nut one, valve rod, the cast steel valve body is formed in one and positioned at the lower section of cast steel bonnet, the stud one sequentially passes through in mating connection with nut one after cast steel valve body and cast steel bonnet, Graphite pad one is provided between the cast steel valve body and cast steel bonnet, the inside of the cast steel valve body is provided with c-type double eccentric half ball body, metal seat valve is provided between the lateral wall of the c-type double eccentric half ball body and the madial wall of cast steel valve body, the metal seat valve is threadedly coupled with cast steel valve body, Graphite pad two is provided between metal seat valve and the cast steel valve body, Graphite pad three is provided between the bottom of the c-type double eccentric half ball body and the bottom of cast steel valve body, the cast steel bonnet offers valve rod hole vertically, the valve rod is arranged in valve rod hole and can moved up and down.Preferably, service life is longer for the utility model sealing property.
Description
Technical field
The utility model is related to a kind of ball valve, more particularly to a kind of integral type cast steel ball valve.
Background technology
The cast steel valve industry of China, developing history is long, and enterprise is numerous, but the up to the present state compared with foreign countries go together
An interior enterprise also very long segment difference provides that chain is not concentrated, high-end cast steel valve research and development ability is low, casting together away from, industry product
Steel valve industry manufacturing technology and the low phenomenon of technological level still have, because cast steel valve industry is in the national economic development
In play very important effect, it is possible to prediction exploitation high parameter and adapts to various works in following a very long time
The market application foreground of the cast steel valve of condition condition is boundless.
Found through investigation, present on market it is most of be some small-bore low pounds levels split type cast steel fixing ball valve or
Person's cast steel floating ball valve, integral type cast steel valve relatively lacks, and can adapt to the integral type cast steel of harsh working condition requirement
Ball valve is less.Conventional cast steel ball valve is due to its own, and generally using split-type structural, spheroid uses Integral ball, uses
Spring provides starting force, but spring can allow valve seat and spheroid to fit together, it is prolonged use or spheroid and sealing surface it is many
Secondary switch friction, fragile sealing surface, therefore sealing property is not satisfactory, service life is not long.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of integral type cast steel ball valve, and its sealing property preferably, makes
With lasting a long time.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of integral type cast steel ball valve, including cast steel valve body, cast steel bonnet, stud one, nut one, valve rod,
The cast steel valve body is formed in one and positioned at the lower section of cast steel bonnet, and the stud one sequentially passes through cast steel valve body
With it is in mating connection with nut one after cast steel bonnet, between the cast steel valve body and cast steel bonnet be provided with Graphite pad one,
The inside of the cast steel valve body is provided with c-type double eccentric half ball body, the lateral wall of the c-type double eccentric half ball body and casting
Metal seat valve is provided between the madial wall of steel valve body, the metal seat valve is threadedly coupled with cast steel valve body, the metal seat valve and
Graphite pad two is provided between cast steel valve body, is provided between the bottom of the c-type double eccentric half ball body and the bottom of cast steel valve body
Graphite pad three,
The cast steel bonnet offers valve rod hole vertically, and the valve rod is arranged in valve rod hole and can moved up and down, described
Valve rod is connected after passing through valve rod hole with the top of c-type double eccentric half ball body.
Further, the utility model also include gear-box, the valve rod be provided with flat key, the valve rod by flat key with
Gear-box is connected, and the gear-box is used to move valve rod.
Further, valve rod described in the utility model includes the body of rod and end, and the body of rod is located above end and mutual
Connection, the cross-sectional area of the end is more than the cross-sectional area of valve rod hole, when the body of rod of valve rod risen in valve rod hole it is predetermined
Apart from when, the end of valve rod is blocked by the inwall of cast steel bonnet, and the end of the valve rod offers neck, and the c-type is double eccentric
Hemispheroidal top is arranged in neck provided with projection, the projection.
Further, the utility model also includes alignment pin, the alignment pin be inserted vertically into valve rod end and c-type it is double partially
The hemispheroidal top of the heart.
Further, it is additionally provided between the end of valve rod described in the utility model and the top of c-type double eccentric half ball body anti-
Electrostatic spring.
Further, the utility model also includes axle sleeve one, O-ring one, axle sleeve two, O-ring two, and the axle sleeve one is arranged
Lateral wall in valve stem end and the top of c-type double eccentric half ball body, the O-ring one is sheathed on c-type double eccentric half ball body
The lateral wall on top and positioned at the lower section of axle sleeve one, the axle sleeve two, O-ring two are sheathed on the top of c-type double eccentric half ball body
Lateral wall, the O-ring two is located at the top of axle sleeve two.
Further, the utility model also includes gland, stud two, nut two, and the gland is sheathed on the outside of valve rod
Wall, the bottom of the gland is located in valve rod hole, and the cross-sectional area on the top of the gland is more than the cross section of the bottom of gland
Product, the stud two sequentially passes through in mating connection with nut two behind the top of cast steel bonnet, the top of gland.
Therefore, compared with prior art, the utility model has the advantages that：
1）Cast steel valve body uses integral structure, and spheroid uses c-type double eccentric half ball structure, in sealing station spheroid and gold
The sealing surface of category valve seat is brought into close contact, and meets basic seal request, when valve opening, the surface of c-type double eccentric half ball body
The sealing surface of metal seat valve can be departed from so as to reduce the unlatching moment of torsion of ball valve, while by the rotation peace produced by double eccentric designs
The dual movement moved causes during opening and closing, will not be rubbed between metal seat valve and c-type double eccentric half ball body
And abrasion, improve sealing property, extend service life, in addition, medium can not c-type double eccentric half ball body lumen it is stagnant
Stay, ensure that the safety of ball valve and production flow line；
2）Cast steel valve body uses integral structure, and inner chamber is largely cast form, is effectively reduced processing cost, and energy
Enough various pipeline connection requests for meeting client well；The production of enterprise can effectively be reduced using cast steel valve body and cast steel bonnet
Cost；Cast steel valve body, cast steel bonnet are connected by stud one with nut one so that product is easy to install, quick detachable, easy exchange；
Graphite pad one, Graphite pad two, Graphite pad three can also rise in addition to it can play good sealing function when meeting with fire
To good fireproofing function, so as to be prevented effectively from the leakage of medium, security is improved；
3）The utility model is fills formula on the whole, when inner sealing damage parts lead to not normal work, Ke Yizhi
It is connected on pipeline and is repaired or renewal part, repairs more convenient, save time and cost.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes the part of the application,
Do not constitute to it is of the present utility model it is improper limit, in the accompanying drawings：
Fig. 1 is structural representation of the present utility model.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, herein signal of the present utility model
Property embodiment and explanation be used for explaining the utility model, but be not intended as limiting of the present utility model.
It is as shown in Figure 1 a kind of embodiment of integral type cast steel ball valve described in the utility model, including cast steel valve body 1,
Cast steel bonnet 19, stud 1, nut 1, valve rod 10, cast steel valve body 1 are formed in one and under cast steel bonnet 19
Side, stud 1 sequentially passes through in mating connection with nut 1 after cast steel valve body 1 and cast steel bonnet 19, cast steel valve body 1 and casting
Graphite pad 1 is provided between steel bonnet 19, the inside of cast steel valve body 1 is provided with c-type double eccentric half ball body 2, c-type double eccentric half
Metal seat valve 7 is provided between the lateral wall of spheroid 2 and the madial wall of cast steel valve body 1, metal seat valve 7 connects with the screw thread of cast steel valve body 1
Connect, Graphite pad 28, bottom and the cast steel valve body 1 of c-type double eccentric half ball body 2 are provided between metal seat valve 7 and cast steel valve body 1
Bottom between be provided with Graphite pad 33, cast steel bonnet 19 offers valve rod hole vertically, and valve rod 10 is arranged in valve rod hole and energy
Move up and down, valve rod 10 is connected after passing through valve rod hole with the top of c-type double eccentric half ball body 2.
Further, the present embodiment also include gear-box 14, valve rod 10 be provided with flat key 13, valve rod 10 by flat key 13 with
Gear-box 14 is connected, and gear-box 14 is used to move valve rod 10, and the torque of gear-box 14, which is changed, make it that single easy operation can be realized
Ball valve.
Further, in the present embodiment, valve rod 10 includes the body of rod 27 and end 28, the body of rod 27 be located at the top of end 28 and
It is connected with each other, the cross-sectional area of end 28 is more than the cross-sectional area of valve rod hole, when the body of rod 27 of valve rod 10 rises in valve rod hole
During to preset distance, the end of valve rod 10 is blocked by the inwall of cast steel bonnet 19, and the end of valve rod 10 offers neck, and c-type is double
The top of eccentric semi-spherical body 2 is arranged in neck provided with projection, projection.In the case that valve pocket boosts, valve also can guarantee that
Bar 10 will not fly out so that product complies fully with the anti-blow safe design requirement of valve rod.
Further, the present embodiment also includes alignment pin 25, alignment pin 25 be inserted vertically into valve rod 10 end and c-type it is double partially
The top of heart hemisphere 2, alignment pin 25 can preferably transmit moment of torsion and reduce gap.
Preferably, in the present embodiment, it is additionally provided between the end of valve rod 10 and the top of c-type double eccentric half ball body 2 anti-
Electrostatic spring 26, the spark that can be prevented effectively from electrostatic generation lights inflammable medium, it is ensured that the general safety fortune under special operation condition
OK.
Preferably, the present embodiment also includes axle sleeve 1, O-ring 1, axle sleeve 24, O-ring 25, and axle sleeve 1 is arranged
Lateral wall in the end of valve rod 10 and the top of c-type double eccentric half ball body 2, O-ring 1 is sheathed on c-type double eccentric half ball body 2
Top lateral wall and positioned at the lower section of axle sleeve 1, axle sleeve 24, O-ring 25 are sheathed on the top of c-type double eccentric half ball body 2
The lateral wall at end, O-ring 25 is located at the top of axle sleeve 24.O-ring 1 and O-ring 25 can play buffer action, can prevent
Particle stream in medium is channeled at axle sleeve 1 and axle sleeve 24, so as to avoid damage of the rotary part in rotation.
Preferably, the present embodiment also includes gland 18, stud 2 16, nut 2 17, and gland 18 is sheathed on the outer of valve rod 10
Side wall, the bottom of gland 18 is located in valve rod hole, and the cross-sectional area on the top of gland 18 is more than the cross section of the bottom of gland 18
Product, stud 2 16 sequentially passes through in mating connection with nut 2 17 behind the top of cast steel bonnet 19, the top of gland 18 so that valve
Sealing at bar 10 is more safe and reliable, and unlatching moment of torsion can also be effectively reduced while improving sealing property.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (7)
1. a kind of integral type cast steel ball valve, it is characterised in that：Including cast steel valve body, cast steel bonnet, stud one, nut one, valve rod,
The cast steel valve body is formed in one and positioned at the lower section of cast steel bonnet, and the stud one sequentially passes through cast steel valve body and casting
It is in mating connection with nut one after steel bonnet, Graphite pad one is provided between the cast steel valve body and cast steel bonnet,
The inside of the cast steel valve body is provided with c-type double eccentric half ball body, the lateral wall and cast-steel valve of the c-type double eccentric half ball body
Metal seat valve is provided between the madial wall of body, the metal seat valve is threadedly coupled with cast steel valve body, the metal seat valve and cast steel
Graphite pad two is provided between valve body, graphite is provided between the bottom of the c-type double eccentric half ball body and the bottom of cast steel valve body
Pad three,
The cast steel bonnet offers valve rod hole vertically, and the valve rod is arranged in valve rod hole and can moved up and down, the valve rod
Top after through valve rod hole with c-type double eccentric half ball body is connected.
2. a kind of integral type cast steel ball valve according to claim 1, it is characterised in that：Also include gear-box, the valve rod
Flat key is provided with, the valve rod is connected by flat key with gear-box, the gear-box is used to move valve rod.
3. a kind of integral type cast steel ball valve according to claim 2, it is characterised in that：The valve rod includes the body of rod and end
Portion, the body of rod is located above end and is connected with each other, and the cross-sectional area of the end is more than the cross-sectional area of valve rod hole, works as valve
When the body of rod of bar rises to preset distance in valve rod hole, the end of valve rod is blocked by the inwall of cast steel bonnet, the valve rod
End offers neck, and the top of the c-type double eccentric half ball body is provided with projection, and the projection is arranged in neck.
4. a kind of integral type cast steel ball valve according to claim 3, it is characterised in that：Also include alignment pin, the positioning
Pin is inserted vertically into the end of valve rod and the top of c-type double eccentric half ball body.
5. a kind of integral type cast steel ball valve according to claim 3, it is characterised in that：The end of the valve rod is double with c-type
Anti-static spring is additionally provided between the top of eccentric semi-spherical body.
6. a kind of integral type cast steel ball valve according to claim 3, it is characterised in that：Also include axle sleeve one, O-ring one,
Axle sleeve two, O-ring two, the axle sleeve one are sheathed on the lateral wall on the top of valve stem end and c-type double eccentric half ball body, the O
Type circle one is sheathed on the lateral wall on the top of c-type double eccentric half ball body and positioned at the lower section of axle sleeve one, the axle sleeve two, O-ring two
The lateral wall on the top of c-type double eccentric half ball body is sheathed on, the O-ring two is located at the top of axle sleeve two.
7. a kind of integral type cast steel ball valve according to claim 3, it is characterised in that：Also include gland, stud two, nut
Two, the gland is sheathed on the lateral wall of valve rod, and the bottom of the gland is located in valve rod hole, the top of the gland it is transversal
Area be more than gland bottom cross-sectional area, the stud two sequentially pass through behind the top of cast steel bonnet, the top of gland with
Nut two is in mating connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720067388.6U CN206409666U (en) | 2017-01-19 | 2017-01-19 | A kind of integral type cast steel ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720067388.6U CN206409666U (en) | 2017-01-19 | 2017-01-19 | A kind of integral type cast steel ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206409666U true CN206409666U (en) | 2017-08-15 |
Family
ID=59555495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720067388.6U Expired - Fee Related CN206409666U (en) | 2017-01-19 | 2017-01-19 | A kind of integral type cast steel ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206409666U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606214A (en) * | 2017-08-29 | 2018-01-19 | 苏州纽威阀门股份有限公司 | A kind of eccentric ball valve |
| CN110397760A (en) * | 2018-04-25 | 2019-11-01 | 浙江三花智能控制股份有限公司 | T-way water valve |
-
2017
- 2017-01-19 CN CN201720067388.6U patent/CN206409666U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606214A (en) * | 2017-08-29 | 2018-01-19 | 苏州纽威阀门股份有限公司 | A kind of eccentric ball valve |
| CN110397760A (en) * | 2018-04-25 | 2019-11-01 | 浙江三花智能控制股份有限公司 | T-way water 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: 20170815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |