CN206190953U - Eccentric type adjusting ball valve - Google Patents
Eccentric type adjusting ball valve Download PDFInfo
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- CN206190953U CN206190953U CN201621145744.3U CN201621145744U CN206190953U CN 206190953 U CN206190953 U CN 206190953U CN 201621145744 U CN201621145744 U CN 201621145744U CN 206190953 U CN206190953 U CN 206190953U
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- valve
- valve body
- core
- valve rod
- eccentric type
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Abstract
The utility model discloses an eccentric type adjusting ball valve, including valve body, disk seat, ball core, valve rod form the medium circulation passageway in the valve body, disk seat, ball core, valve rod are all installed in the valve body, the ball core be hollow structure and its upper end with the lower extreme of valve rod is connected, the upper end of valve rod is upwards stretched out the valve body and is used for being connected to actuating mechanism the lower extreme of ball core is connected with the guide bar, and the lower part of this guide bar is fixed and is worn to locate on the valve body, the vertical central line of ball core is parallel and at a distance of eccentric apart from a with the valve rod central line still installed lock ring in the valve body, this lock ring's left side with the locking seat looks apical grafting on the valve body sets firmly, it installs to prop up lock ring's right side the disk seat. It is showing the effect: the reliability of valve has been improved, the automatically cleaning can be realized to sealed face, has effectively prolonged the life of valve, reduce the consumptive material, reduced the material cost of valve effectively.
Description
Technical field
The utility model is related to ball valve production technical field, is a kind of eccentric type regulation ball valve specifically.
Background technology
At present, the advantage of ball valve is big negotiability, and linearly, flow resistance is small for valve channel, and adjustable extent is wide, therefore it is wide
General to be used in steel, water power, sugaring, paper industry, municipal water supply, sewage disposal etc. occasion, effect is also fine.
However, existing ball valve is generally concentric ball valve, the shortcoming of the structure is core meeting one during opening and closing
Valve seat is directly touched, sealing surface damage is easily caused.And the valve body that existing valve is used all is by carbon steel, alloy, copper, pure
Titanium, titanium alloy, and stainless steel one-step casting are formed, and material cost is very high, and are actually only just needed with medium contact site
Special material, waste of material is very serious, causes valve to hold at high price, and how to reduce the cost of valve, and enables valve
Enough Applicable medias need, and also just turn into a problem.
The content of the invention
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of eccentric type regulation ball valve, the ball valve ball
Core rotates with valve rod coaxial eccentric, when high viscosity, fibrous media, can effectively extend the service life of valve.
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：
A kind of eccentric type adjusts ball valve, and it is critical only that：Including valve body, valve seat, core, valve rod, the shape in the valve body
Into flow of media passage, the valve seat, core, valve rod are installed in the valve body, and the core is hollow-core construction and thereon
End is connected with the lower end of the valve rod, and the upper end of the valve rod protrudes upward valve body and for being connected to executing agency, described
The lower end of core is connected with guide post, and the bottom of the guide post is fixed and is arranged on the valve body, the vertical center of the core
Line and valve rod centerline parallel and at a distance of eccentric throw a, bracing ring is also equiped with the valve body, the left side of the bracing ring with it is solid
Stop-motion seat phase apical grafting on valve body, is provided with mounting groove on the right side of the bracing ring, the valve seat is arranged on the bracing ring
In the mounting groove for opening up.
This ball valve have the special feature that for：There is eccentric throw a between valve rod center line and the vertical center line of core；Without float trap
Seat.Due to the presence of eccentric throw a so that during closing core, core can press tighter and tighter with valve seat, be theoretically obtainable
Zero leakage.And due to there is eccentric throw, traditional floating type valve seat is eliminated, directly the fixed valve base on valve body so that ball
When core is closed, core is contacted and extruded with sealing ring, so as to ensure sealing, sealing structure is simpler, and then improves valve
Reliability.
In addition, core rotates with valve rod coaxial eccentric, when spheroid is lifted off a seat, medium can wash away the accumulation on sealing surface
Thing, sealing surface can realize automatically cleaning, effectively extend the service life of valve；And this ball-valve structure is simple, easy for installation, core
Using hollow-core construction, the weight of ball valve is reduced, reduce consumptive material, therefore significantly reduce the material cost of valve.
Further, the lower edge of the guide post extends to form limited step laterally, and the limited step is fixed on
Between the valve body and lower flange, the lower flange is connected to the lower section of the valve body.
By said structure, stability of the core in rotary course is can effectively ensure that, reduced between each parts
Abrasion, extend valve service life.
Further, the graphite pads using stainless steel winding are provided with the outside of the limited step.
Further, packing box assembly is provided between the valve rod and valve body, is set below the packing box assembly
There is bushing, the valve rod is arranged in the bushing, pressing plate is provided with above described filler letter component, the pressing plate is by connection
Bolt is fixedly connected with the upper end of the valve body.
By said structure, the sealing between valve rod and valve body is effectively guaranteed so that ball valve has higher close
Envelope grade.
Further, described filler letter component includes the filler for once setting from the bottom to top and filler cover plate, is filled out described
The first O-ring is provided between material cover plate and valve rod and between filler cover plate and valve body.
Further, to be provided with second between the valve seat and bracing ring and between the bracing ring and valve body O-shaped
Circle.
Remarkable result of the present utility model is：Open and close without friction, due to using eccentric structure, valve is in the process closed
In, spheroid moves closer to ball valve, is completely attached to closed position, and sealing structure is simpler, and then improves the reliability of valve
Property；When spheroid is lifted off a seat, medium can wash away the accumulation on sealing surface, and sealing surface can realize automatically cleaning, effectively extend valve
Service life；Core uses hollow-core construction, reduces the weight of ball valve, reduces consumptive material, therefore significantly reduce valve
Material cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Specific embodiment of the present utility model and operation principle are described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of eccentric type regulation ball valve, including valve body 1, valve seat 3, core 4, valve rod 7, in the valve body 1
Interior formation flow of media passage, the valve seat 3, core 4, valve rod 7 are installed in the valve body 1, and the core 4 is hollow knot
Structure and its upper end is connected with the lower end of the valve rod 7, the upper end of the valve rod 7 protrudes upward valve body 1 and for being connected to execution
Mechanism, guide post 15 is connected with the lower end of the core 4, and the bottom of the guide post 15 is fixed and is arranged on the valve body 1,
Spheroid bushing 14, the vertical center line L of the core 4 and the center line of valve rod 7 are provided between the valve element 4 and guide post 15
L ' is parallel and at a distance of eccentric throw a, and bracing ring 5 is also equiped with the valve body 1, the left side of the bracing ring 5 be fixedly arranged on valve body 1
On the phase apical grafting of stop-motion seat 6, the right side of the bracing ring 5 is provided with mounting groove, and the valve seat 3 is arranged on the bracing ring 5 and opens up
Mounting groove in.
In this example, the lower edge of the guide post 15 extends to form limited step laterally, and the limited step is fixed on
Between the valve body 1 and lower flange 17, the lower flange 17 is connected to the lower section of the valve body 1, in the outside of the limited step
It is provided with the graphite pads 16 using stainless steel winding.
As shown in figure 1, packing box assembly is provided between the valve rod 7 and valve body 1, in the lower section of the packing box assembly
Bushing 8 is provided with, the valve rod 7 is arranged in the bushing 8, and pressing plate 11, the pressing plate are provided with above described filler letter component
11 are fixedly connected by connecting bolt 12 with the upper end of the valve body 1, and described filler letter component includes once setting from the bottom to top
The filler 9 put and gland 10, between described filler gland 10 and valve rod 7 and between gland 10 and valve body 1
It is provided with the first O-ring 13.
In the specific implementation, it is provided between the valve seat 3 and bracing ring 5 and between the bracing ring 5 and valve body 1
Second O-ring 2.
Claims (6)
1. a kind of eccentric type adjusts ball valve, it is characterised in that：Including valve body (1), valve seat (3), core (4), valve rod (7), in institute
State and flow of media passage formed in valve body (1), the valve seat (3), core (4), valve rod (7) are installed in the valve body (1),
The core (4) is that hollow-core construction and its upper end are connected with the lower end of the valve rod (7), and the upper end of the valve rod (7) is stretched upwards
Go out valve body (1) and for being connected to executing agency, guide post (15), the guide post are connected with the lower end of the core (4)
(15) bottom is fixed and is arranged on the valve body (1), the vertical center line (L) of the core (4) and the center line of valve rod (7)
(L ') is parallel and at a distance of eccentric throw a, and bracing ring (5) is also equiped with the valve body (1), the left side of the bracing ring (5) with it is solid
Stop-motion seat (6) phase apical grafting on valve body (1), is provided with mounting groove on the right side of the bracing ring (5), the valve seat (3) is installed
In the mounting groove opened up on the bracing ring (5).
2. eccentric type according to claim 1 adjusts ball valve, it is characterised in that：The lower edge of the guide post (15) to
Outside extends to form limited step, and the limited step is fixed between the valve body (1) and lower flange (17), the lower flange (17)
It is connected to the lower section of the valve body (1).
3. eccentric type according to claim 2 adjusts ball valve, it is characterised in that：It is provided with the outside of the limited step and is adopted
The graphite pads (16) wound with stainless steel.
4. eccentric type according to claim 1 adjusts ball valve, it is characterised in that：Between the valve rod (7) and valve body (1)
Packing box assembly is provided with, bushing (8) is provided with below the packing box assembly, the valve rod (7) is arranged in the bushing (8)
It is interior, pressing plate (11) is provided with above described filler letter component, the pressing plate (11) is by connecting bolt (12) and the valve body
(1) upper end is fixedly connected.
5. eccentric type according to claim 4 adjusts ball valve, it is characterised in that：Described filler letter component is included from the bottom to top
The filler (9) that once sets and gland (10), between described filler gland (10) and valve rod (7) and gland
(10) the first O-ring (13) is provided with and valve body (1) between.
6. eccentric type according to claim 1 adjusts ball valve, it is characterised in that：The valve seat (3) and bracing ring (5) it
Between and the bracing ring (5) and valve body (1) between be provided with the second O-ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145744.3U CN206190953U (en) | 2016-10-21 | 2016-10-21 | Eccentric type adjusting ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145744.3U CN206190953U (en) | 2016-10-21 | 2016-10-21 | Eccentric type adjusting ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190953U true CN206190953U (en) | 2017-05-24 |
Family
ID=58733503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621145744.3U Active CN206190953U (en) | 2016-10-21 | 2016-10-21 | Eccentric type adjusting ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206190953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361406A (en) * | 2018-05-09 | 2018-08-03 | 盐城市大昌石化设备有限公司 | A kind of multi-level V-type hard seal ball valve |
-
2016
- 2016-10-21 CN CN201621145744.3U patent/CN206190953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361406A (en) * | 2018-05-09 | 2018-08-03 | 盐城市大昌石化设备有限公司 | A kind of multi-level V-type hard seal ball valve |
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| GR01 | Patent grant |