CN204372219U - A kind of corrosion-resistant plastic ball valve of adjustable sealing performance - Google Patents
A kind of corrosion-resistant plastic ball valve of adjustable sealing performance Download PDFInfo
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- CN204372219U CN204372219U CN201420858883.5U CN201420858883U CN204372219U CN 204372219 U CN204372219 U CN 204372219U CN 201420858883 U CN201420858883 U CN 201420858883U CN 204372219 U CN204372219 U CN 204372219U
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- medium passage
- spheroid
- valve
- mobile base
- valve body
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Abstract
The utility model relates to a kind of corrosion-resistant plastic ball valve of adjustable sealing performance, comprise handle, valve rod and valve body and spheroid, first medium passage is provided with in described valve body, second medium passage and the valve pocket be placed between first medium passage and second medium passage, described spheroid to be placed in valve pocket and to arrange in linking with described valve rod, described valve body and spheroid are made up of polyvinylidene fluoride respectively, the internal diameter of described first medium passage is less than the external diameter of described spheroid, the internal diameter of described second medium passage is greater than the external diameter of described spheroid, the corresponding first medium passage side of described spheroid is provided with the first seal ring, the Mobile base arranged in a tubular form is provided with in described second medium passage, described Mobile base is along the axially movable setting of described second medium passage, the corresponding spheroid one end of described Mobile base is provided with the second seal ring matched with described spheroid.Technical solutions of the utility model, have that structure is simple, adjustable sealing performance, corrosion resistant effect.
Description
Technical field
The utility model relates to a kind of corrosion-resistant plastic ball valve of adjustable sealing performance.
Background technique
Ball valve made of plastic is a kind of General valve, and some have comparatively in strong corrosion industry pipe-line system to be widely used in iron and steel, metallurgy, petroleum and chemical industry etc.Ball valve drives open-shut device (spheroid) to rotate by valve rod, and the axis around valve rod does 90 ° of rotary motions, is mainly used in the medium cutting off or connect in pipeline, also can be used for the regulating action of flowing medium.The compact structure of main feature of ball valve own, sealing is reliable, easy to maintenance, and after valve opening, sealing surface and sphere are everlasting closed state, and spheroid, not easily by medium erosion, is easy to operate.Although but common steel matter ball valve can ensure in pressure-bearing, can not play resistant to corrosive media effect; In using in most of operating mode, medium has strong corrosivity, so be easily corroded in steel ball valve very short time.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide that a kind of structure is simple, the corrosion-resistant plastic ball valve of adjustable sealing performance.
For achieving the above object, the utility model provides following technological scheme: a kind of corrosion-resistant plastic ball valve of adjustable sealing performance, comprise handle, valve rod and valve body and spheroid, first medium passage is provided with in described valve body, second medium passage and the valve pocket be placed between first medium passage and second medium passage, described spheroid to be placed in valve pocket and to arrange in linking with described valve rod, described valve body and spheroid are made up of polyvinylidene fluoride respectively, the internal diameter of described first medium passage is less than the external diameter of described spheroid, the internal diameter of described second medium passage is greater than the external diameter of described spheroid, the corresponding first medium passage side of described spheroid is provided with the first seal ring, the Mobile base arranged in a tubular form is provided with in described second medium passage, described Mobile base is along the axially movable setting of described second medium passage, the corresponding spheroid one end of described Mobile base is provided with the second seal ring matched with described spheroid.
By adopting technique scheme, valve body and spheroid are made up of polyvinylidene fluoride (PVDF) respectively, thus are applicable in the severe medium of strong acid, highly basic, organic solvent working condition and are not easily corroded.But, valve opening and closing frequently often after, easily causing sphere friction that sealing effect is reduced, easily cause valve leak, by being moved to spheroid direction by Mobile base, thus again making ball valve reach excellent sealing.
The utility model can be arranged further: the inwall of described Mobile base second medium passage corresponding to described valve body is connected by screw-thread fit.
By adopting technique scheme, can better locate after Mobile base moves to spheroid direction.
The utility model can be arranged further: described handle and valve body are in removably connecting, and it is the boss that polygonal is arranged that described handle is provided with cross section, and the described Mobile base opposing spheres the other end is provided with the concave station suitable with the boss shape of described handle.
By adopting technique scheme, when relaxing owing to rubbing between spheroid and seal ring after ball valve uses a period of time, when causing poorly sealed appearance to be leaked, handle can be taken off, the concave station school of being inserted Mobile base by handle convex platform is tight, again make ball valve reach excellent sealing, when this design also can be used for keeping in repair valve, bottom sealing socket of outwarding winding checks valve body inner components situation.
The utility model can be arranged further: described handle and valve rod are in being wholely set, described valve body is provided with valve neck, is provided with filler between described valve rod and valve neck, and filler top is provided with gland, described gland is provided with locking nut, and described locking nut is connected by screw-thread fit with valve neck.
By adopting technique scheme, just can carry out dismounting to handle fast by outwarding winding or screwing in locking nut, thus can regulate the sealing of valve easily.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model example structure figure.
Embodiment
See accompanying drawing 1, the corrosion-resistant plastic ball valve of adjustable sealing performance disclosed in the utility model, comprise handle 1, valve rod 2 and valve body 3 and spheroid 4, first medium passage 301 is provided with in described valve body 3, second medium passage 302 and the valve pocket be placed between first medium passage 301 and second medium passage 302, described spheroid 4 to be placed in valve pocket and to arrange in linking with described valve rod 2, described valve body 3 is made up of plastics respectively with spheroid 4, the internal diameter of described first medium passage 301 is less than the external diameter of described spheroid 4, the internal diameter of described second medium passage 302 is greater than the external diameter of described spheroid 4, described spheroid 4 corresponding first medium passage 301 side is provided with the first seal ring 5, the Mobile base 6 arranged in a tubular form is provided with in described second medium passage 302, described Mobile base 6 is along the axially movable setting of described second medium passage 302, described Mobile base 6 corresponding spheroid 4 one end is provided with the second seal ring 7 matched with described spheroid 4.By adopting technique scheme, valve body 3 and spheroid 4 are made up of polyvinylidene fluoride (PVDF) respectively, thus are applicable in the severe medium of strong acid, highly basic, organic solvent working condition and are not easily corroded.But, valve opening and closing frequently often after, easily cause spheroid 4 rub sealing effect is reduced, easily causing valve leak, by being moved to spheroid 4 direction by Mobile base 6, thus again making ball valve reach excellent sealing.
The present embodiment is arranged further: the inwall of described Mobile base 6 second medium passage 302 corresponding to described valve body 3 is connected by screw-thread fit.By adopting technique scheme, Mobile base 6 can better be located after moving to spheroid 4 direction.
The present embodiment is arranged further: described handle 1 and valve body 3 are in removably connecting, it is the boss 101 that polygonal is arranged that described handle 1 is provided with cross section, and described Mobile base 6 opposing spheres 4 the other end is provided with the concave station 401 suitable with boss 101 shape of described handle 1.By adopting technique scheme, when relaxing owing to rubbing between spheroid 4 and seal ring after ball valve uses a period of time, when causing poorly sealed appearance to be leaked, handle 1 can be taken off, concave station 401 school of being inserted Mobile base 6 by handle 1 convex platform 101 is tight, again make ball valve reach excellent sealing, when this design also can be used for keeping in repair valve, bottom sealing socket of outwarding winding checks valve body 3 inner components situation.
The present embodiment is arranged further: described handle 1 and valve rod 2 are in being wholely set, described valve body 3 is provided with valve neck 303, filler 10 is provided with between described valve rod 2 and valve neck 303, filler 10 top is provided with gland 8, described gland 8 is provided with locking nut 9, and described locking nut 9 is connected by screw-thread fit with valve neck 303.By adopting technique scheme, just can carry out dismounting to handle 1 fast by outwarding winding or screwing in locking nut 9, thus can regulate the sealing of valve easily.
It is apparent to one skilled in the art that the utility model can change into various ways, such change do not think depart from scope of the present utility model.All like this to the apparent amendment of the technician in described field, by be included in this claim scope within.
Claims (4)
1. the corrosion-resistant plastic ball valve of an adjustable sealing performance, comprise handle, valve rod and valve body and spheroid, first medium passage is provided with in described valve body, second medium passage and the valve pocket be placed between first medium passage and second medium passage, described spheroid to be placed in valve pocket and to arrange in linking with described valve rod, it is characterized in that: described valve body and spheroid are made up of polyvinylidene fluoride respectively, the internal diameter of described first medium passage is less than the external diameter of described spheroid, the internal diameter of described second medium passage is greater than the external diameter of described spheroid, the corresponding first medium passage side of described spheroid is provided with the first seal ring, the Mobile base arranged in a tubular form is provided with in described second medium passage, described Mobile base is along the axially movable setting of described second medium passage, the corresponding spheroid one end of described Mobile base is provided with the second seal ring matched with described spheroid.
2. the corrosion-resistant plastic ball valve of adjustable sealing performance according to claim 1, is characterized in that: the inwall of described Mobile base second medium passage corresponding to described valve body is connected by screw-thread fit.
3. the corrosion-resistant plastic ball valve of adjustable sealing performance according to claim 2, it is characterized in that: described handle and valve body are in removably connecting, it is the boss that polygonal is arranged that described handle is provided with cross section, and the described Mobile base opposing spheres the other end is provided with the concave station suitable with the boss shape of described handle.
4. the corrosion-resistant plastic ball valve of adjustable sealing performance according to claim 3, it is characterized in that: described handle and valve rod are in being wholely set, described valve body is provided with valve neck, filler is provided with between described valve rod and valve neck, filler top is provided with gland, described gland is provided with locking nut, and described locking nut is connected by screw-thread fit with valve neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858883.5U CN204372219U (en) | 2014-12-30 | 2014-12-30 | A kind of corrosion-resistant plastic ball valve of adjustable sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858883.5U CN204372219U (en) | 2014-12-30 | 2014-12-30 | A kind of corrosion-resistant plastic ball valve of adjustable sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372219U true CN204372219U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420858883.5U Active CN204372219U (en) | 2014-12-30 | 2014-12-30 | A kind of corrosion-resistant plastic ball valve of adjustable sealing performance |
Country Status (1)
| Country | Link |
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| CN (1) | CN204372219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357035A (en) * | 2018-12-29 | 2019-02-19 | 浙江东信阀门有限公司 | A kind of valve rod axial direction seal ball-valve |
-
2014
- 2014-12-30 CN CN201420858883.5U patent/CN204372219U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357035A (en) * | 2018-12-29 | 2019-02-19 | 浙江东信阀门有限公司 | A kind of valve rod axial direction seal ball-valve |
| CN109357035B (en) * | 2018-12-29 | 2023-12-01 | 浙江东信阀门有限公司 | Axial sealing ball valve of valve rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A corrosion resistant plastic ball valve with adjustable sealing performance Effective date of registration: 20200909 Granted publication date: 20150603 Pledgee: Agricultural Bank of China Limited Wenzhou Ouhai sub branch Pledgor: ZHEJIANG BAITONG ANTICORROSION EQUIPMENT Co.,Ltd. Registration number: Y2020330000657 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |