CN208951342U - Half lining floating ball valve - Google Patents
Half lining floating ball valve Download PDFInfo
- Publication number
- CN208951342U CN208951342U CN201821699525.9U CN201821699525U CN208951342U CN 208951342 U CN208951342 U CN 208951342U CN 201821699525 U CN201821699525 U CN 201821699525U CN 208951342 U CN208951342 U CN 208951342U
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- valve
- sphere
- barrel
- valve rod
- floating ball
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Abstract
The utility model provides a kind of half lining floating ball valve, including valve body, valve rod, sphere and executing agency, sealing ring is provided at sphere and valve body contact, the valve body includes left valve barrel and right valve barrel, left valve barrel and right valve barrel are symmetrical set centered on valve rod, and sphere is set to the middle position between left valve barrel and right valve barrel, valve rod one end and sphere split type structure, and valve rod and sphere transmission cooperate, the centre of sphere of sphere is fallen on valve rod center line after valve rod and sphere installation.Linear sealing in the use of the utility model sealing structure, keeps the sealing force of the right and left uniform, gets rid of traditional design structure, stress point is avoided to act on valve body entirely, and ball will not control offset when sealing, and alleviates torque；Valve rod and sphere using split type, when avoiding valve switch runner not just or unidirectional compressing when valve rod deflects to filler, to reduce leakage point.
Description
Technical field
The utility model belongs to valve technology field, more particularly to a kind of half lining floating ball valve.
Background technique
The sealing ring stress on sphere both sides is not not in the centre of valve body, when leading to ball seal for conventional ball valve valve rod and sphere
, different so as to cause the loss of both sides sealing circle, cause wherein sealing ring loss is too fast to cause to leak, simultaneously because sphere is close
Unbalance stress valve rod same unbalance stress in the rotation, leads to the filler unbalance stress on valve rod periphery, leads to filler when envelope
It is unidirectional to oppress, leakage situation is also easy to produce at filler.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of wear-resisting, antileakaging half lining floating ball valves.
The utility model is achieved by the following technical solution:
Half serves as a contrast floating ball valve, including valve body, valve rod, sphere and executing agency, is provided with sealing at sphere and valve body contact
Circle, the valve body includes left valve barrel and right valve barrel, and left valve barrel and right valve barrel are symmetrical set centered on valve rod, and sphere is set to
Middle position between left valve barrel and right valve barrel, valve rod one end and sphere split type structure, and valve rod is matched with sphere transmission
It closes, the centre of sphere of sphere is fallen on valve rod center line after valve rod and sphere installation.
The utility model has the beneficial effects that linear sealing in the use of the utility model sealing structure, makes the sealing of the right and left
Power is uniform, gets rid of traditional design structure, stress point is avoided to act on valve body entirely, and ball will not control offset when sealing, and subtracts
Light torque；Valve rod and sphere are using split type, and runner is not just or when valve rod deflects to the list of filler when avoiding valve switch
To compressing, to reduce leakage point.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model.
Specific embodiment
Below with reference to embodiment, the utility model is described in further detail.
Embodiment
Half lining floating ball valve as shown in Figure 1, including valve body, valve rod 3, sphere 4 and executing agency, sphere 4 connect with valve body
Synapsis is provided with sealing ring 5, and the valve body includes left valve barrel 1 and right valve barrel 2, during left valve barrel 1 and right valve barrel 2 with valve rod 3 be
The heart is symmetrical set, and sphere 4 is set to the middle position between left valve barrel 1 and right valve barrel 2, and 3 one end of valve rod is seperated with sphere 4
Formula structure, and valve rod 3 and sphere transmission cooperate, the centre of sphere of sphere 4 is fallen on 3 center line of valve rod after valve rod 3 and the installation of sphere 4.
Linear sealing in sealing structure use, keeps the sealing force of the right and left uniform, gets rid of traditional design structure, avoid stress point complete
It acts on valve body, ball will not control offset when sealing, and alleviate torque；Valve rod 3 and the use of sphere 4 are split type, avoid valve
When door switch runner not just or unidirectional compressing to filler when valve rod 3 deflects, to reduce leakage point.
Valve interior wall is lined with liner layer 8.The setting of liner layer 8 can guarantee that medium will not directly contact valve body, make valve
Body is not perishable, increases the service life of product.
It is equipped with filler 9 between valve rod 3 and left valve barrel 1 and right valve barrel 2, is connected with filler on left valve barrel 1 or right valve barrel 2
Gland.The protrusion 6 to the protrusion setting of valve rod 3 is equipped on left valve barrel 1 and right valve barrel 2, liner layer 8 wraps the protrusion 6 setting,
Contact valve rod 3 directly with liner layer 8.The liner layer 8 wraps up left valve barrel 1 and 2 inner wall of right valve barrel entirely.Filler is set to left and right
Between valve body 2, and liner layer 8 is wrapped up into body cavity entirely, so that nothing directly contacts between valve rod 3 and valve body, the setting of protrusion 6
Liner layer 8 can be made directly to contact with valve rod 3, play certain sealing function, while filler is contacted with liner layer 8, is compared
Traditional filler and valve body contact sealing effect are more preferable.
There are several annular dovetail slots 7 in left valve barrel 1 and 2 inwall processing of right valve barrel, is contacted in liner layer 8 with valve interior wall
It is equipped with the bulge loop being engaged by clamping with dovetail groove 7 outwardly protruded on one side.
The sealing ring 5 is made of polytetrafluoroethylene (PTFE) material.5 position of sealing ring is installed in left valve barrel 1 and right valve barrel 2
Place is machined with a depressed section, and sealing ring 5 is embedded in the depressed section.Sealing surface and spherical surface are applicable in often in closed state
Pressure medium is sealed, and sealing ring 5 uses polytetrafluoroethylene (PTFE), corrosion-resistant, wear-resistant.
The sphere 4 is stainless steel material or ceramic material.Can according to the demand of different operating conditions, be changed to ceramics, no
Become rusty steel or special material isosphere 4, to the different demands such as meet wear-resisting, the resistance to general corrosion of different operating conditions, be able to bear strong corrosion, reduces
The waste of material cost.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, it is on the premise of not departing from the spirit and scope of the utility model, in the art common
Simply changing and replacing for technical staff be all within the protection scope of the utility model.
Claims (9)
1. half serves as a contrast floating ball valve, including valve body, valve rod, sphere and executing agency, it is provided with sealing ring at sphere and valve body contact,
It is characterized by: the valve body includes left valve barrel and right valve barrel, left valve barrel and right valve barrel are symmetrical set centered on valve rod,
Sphere is set to the middle position between left valve barrel and right valve barrel, valve rod one end and sphere split type structure, and valve rod and ball
Body transmission cooperation, the centre of sphere of valve rod and sphere after sphere installation are fallen on valve rod center line.
2. half lining floating ball valve according to claim 1, it is characterised in that: valve interior wall is lined with liner layer.
3. half lining floating ball valve according to claim 1, it is characterised in that: set between valve rod and left valve barrel and right valve barrel
There is filler, is connected with gland on left valve barrel or right valve barrel.
4. half lining floating ball valve according to claim 2, it is characterised in that: be equipped on left valve barrel and right valve barrel to valve rod
The protrusion of setting is protruded, liner layer wraps protrusion setting, contacts valve rod directly with liner layer.
5. half lining floating ball valve according to claim 2, it is characterised in that: the liner layer wraps up left valve barrel and the right side entirely
Valve interior wall.
6. half lining floating ball valve according to claim 5, it is characterised in that: if having in left valve barrel and right valve barrel inwall processing
Dry annular dovetail slot, it is convex with dovetail groove clamping engagement equipped with what is outwardly protruded in the one side that liner layer is contacted with valve interior wall
Ring.
7. half lining floating ball valve according to claim 1, it is characterised in that: the sealing ring uses polytetrafluoroethylene (PTFE) material
Matter is made.
8. half lining floating ball valve according to claim 1, it is characterised in that: install sealing ring position in left valve barrel and right valve barrel
The place of setting is machined with a depressed section, and sealing ring is embedded in the depressed section.
9. half lining floating ball valve according to claim 1, it is characterised in that: the sphere is stainless steel material or ceramics
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821699525.9U CN208951342U (en) | 2018-10-19 | 2018-10-19 | Half lining floating ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821699525.9U CN208951342U (en) | 2018-10-19 | 2018-10-19 | Half lining floating ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208951342U true CN208951342U (en) | 2019-06-07 |
Family
ID=66742053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821699525.9U Active CN208951342U (en) | 2018-10-19 | 2018-10-19 | Half lining floating ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208951342U (en) |
-
2018
- 2018-10-19 CN CN201821699525.9U patent/CN208951342U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |