CN2895925Y - Spline spiral friction-free ball valve - Google Patents
Spline spiral friction-free ball valve Download PDFInfo
- Publication number
- CN2895925Y CN2895925Y CN 200620113212 CN200620113212U CN2895925Y CN 2895925 Y CN2895925 Y CN 2895925Y CN 200620113212 CN200620113212 CN 200620113212 CN 200620113212 U CN200620113212 U CN 200620113212U CN 2895925 Y CN2895925 Y CN 2895925Y
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- CN
- China
- Prior art keywords
- valve
- spline
- valve rod
- chamber
- cavity
- 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
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Abstract
The utility model relates to a spline spiral friction-free ball valve which comprises a valve body, a valve seat in the cavity of the valve body, a through hole ball, a valve cap on the valve body and a hand wheel; wherein a valve stem is mounted in the valve cap cavity, a support sleeve, a spline sleeve, a sealing member group, a press sleeve and a locking nut are mounted between the lower part of the cavity and the valve stem, a support screw nut and a gasket are mounted between the upper part of the cavity and the valve stem to be fixed by an external locking screw nut and the valve cap, the upper part of the valve stem is connected with the inside of the support screw nut by a screw bolt, a spline section is arranged at the middle lower part of the valve stem, an slant flat section, a spiral section and an offset straight section are provided at the lower part of the valve stem, the lower part of the valve stem is inserted in between the two horizontal round pin rods which are provided in the neck cavity at the upper part of the through hole ball, and the rod of the lower part of the through hole ball is embedded into the inside of the joint bearing which is provided in the positioning cavity at the center of the bottom of the valve body. The utility model has a novel design, a compact structure, a strong sealing performance, no friction, no effect by the condition of the medium, convenient operation, quick start/stop motion and practical value.
Description
Technical field
The utility model relates to a kind of being applicable in the medium transport pipelines such as gas, liquid, particle powdery type does not have the friction ball valve as the spline spiral that opens and closes control flow rate.
Background technique
Ball valve is the most a kind of valve of purposes in industries such as oil, chemical industry, pharmacy, electric power, metallurgy, papermaking, food, water treatment.But existing ball valve ubiquity following defective: spheroid rubs with valve seat in rotation process, its sealing surface wear is serious, easily cause leakage, and the keying operation is also required great effort very much, and be subjected to the restriction that Environmental Conditions comprises flowing medium temperature, pressure, influence its usability, be difficult to satisfy the needs that modern industry is produced.
The model utility content
The purpose of this utility model is to overcome the defective of prior art existence and provides a kind of Environmental Conditions restriction, no fretting wear, keying operation spline spiral light, that sealability is strong of not being subjected to not have the friction ball valve.
The purpose of this utility model realizes by following technological scheme: a kind of spline spiral does not have the friction ball valve, comprise by the straight-through type valve body, the endoceliac valve seat of valve, the through hole spheroid, valve gap and handwheel coupled above the valve body constitute, in the middle of it is characterized in that in the described valve cover cavity vertical valve rod is housed, between chamber lower inside and the valve rod supporting sleeve is housed, spline housing, the Sealing group, gland and locking swivel nut, back nut and pad are housed between chamber inside upper part and the valve rod, and fix by outer button swivel nut and valve gap, position, described valve rod upper end is connected so that spiral shell button and back nut are inboard, position, valve rod middle and lower part is provided with spline segment, be complementary with the spline housing of valve cover cavity inboard, the valve rod lower end part is provided with tiltedly flat section, spiral section and straight section partially, be provided with in the insertion neck chamber, through hole spheroid top, valve rod underpart, in the middle of two horizontal round pin posts that are complementary with it, be provided with in embedding valve body bottom centre of the newel post positioning chamber under the described through hole spheroid, the joint shaft bearing inboard that is complementary with it.
Spline spiral of the present utility model does not have the friction ball valve, and wherein said handwheel sleeve connects with the phase embedding of hexagonal side in the back nut outside, and fastening by the female cover of the back of the body.
Spline spiral of the present utility model does not have the friction ball valve, and mark post is equipped with in wherein said valve stem tip portion.
The utility model modern design, compact structure, sealability are strong, no fretting wear, be not subjected to ambient condition influence, operate light, keying is rapid, has use value.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is a valve rod of the present utility model underpart schematic representation.
Embodiment
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
Shown in Fig. 1-2, spline spiral of the present utility model does not have the friction ball valve, comprise by the valve seat 18 in straight-through type valve body 13, valve body 13 chambeies, through hole spheroid 14, valve body 13 top coupled valve gap 17 and handwheels 2 and constituting, vertical valve rod 9 is housed in the middle of in its valve gap 17 chambeies, supporting sleeve 11, spline housing 10, Sealing group 8, gland 7 and locking swivel nut 6 are housed between chamber lower inside and the valve rod 9, back nut 4 and pad 5 are housed between chamber inside upper part and the valve rod 9, and fixing by outer button swivel nut 3 with valve gap 17.Handwheel 2 is enclosed within back nut 4 outsides and connects with the phase embedding of hexagonal side, and fastening by back of the body mother cover 1.Position, valve rod 9 upper end is with spiral shell button and 4 inboard connections of back nut, valve rod 9 tip portion are equipped with mark post 16, position, valve rod 9 middle and lower part is provided with spline segment 22, be complementary with the spline housing 10 of inboard, valve gap 17 chamber, valve rod 9 lower end parts are provided with tiltedly flat section 19, spiral section 20 and straight section 21 partially, valve rod 9 underparts insert be provided with in the neck chamber, through hole spheroid 14 top, be complementary with it two horizontal round pin posts 12 are middle.14 times newel posts of through hole spheroid embed joint shaft bearing that be provided with, that be complementary with it 15 inboards in valve body 13 bottom centre's positioning chambers.
Working principle of the present utility model is as follows: when stirring the rotation of handwheel 2 clockwise directions, do to place restrictions on because of the spline that is subjected to spline housing 10 to downward movement by back nut 4 coupled valve rods 9, valve rod 9 can only moving linearly.The slideway of spiral is subjected to horizontal round pin post 12 controls of two in the through hole spheroid 14 top necks, when valve rod 9 when descending, be subjected to tiltedly flat section 19 wedge power effect that produces, through hole spheroid 14 is close to valve seat 18, its spheroid 14 is close to the cut-out media flow with valve seat 18, is closed state.When handwheel 2 counterclockwise rotates, valve rod 9 is subjected to the spline of spline housing 10 equally and places restrictions on, can only move upward as straight line, drive two horizontal round pin posts 12 in the neck chamber, spheroid 14 top, make spheroid 14 swings break away from valve seat 18, produce certain clearance, when valve rod 9 continues when up, two horizontal round pin posts 12 in the neck chamber, spheroid 14 top are subjected to the twisting force of valve rod 9 underpart spiral sections 20, force through hole spheroid 14 breaking away under valve seat 18 situations 90 ° of rotations, can not produce friction with valve seat 18, when valve rod 9 up terminations, two horizontal round pin posts 12 are in straight section partially 21 positions of valve rod 9 underparts, and its spheroid 14 through holes are consistent with valve seat 18 through holes and connect, be opening state, medium just can flow.The mark post 16 that also can raise from handwheel 2 center portions represents that valve is the breakdown state simultaneously.
The utility model is in operating process, and is when it stirs handwheel 2 rotations, very light laborsaving.And through hole spheroid 14 can not produce friction with valve seat 18 when rotating, and avoids sealing surface frayed, guaranteed sealability.Also be not subjected to simultaneously the influence of Environmental Conditions, as the height of flowing medium temperature, the size of pressure etc., so the field that the utility model is suitable for is very extensive.
Claims (3)
1, a kind of spline spiral does not have the friction ball valve, comprise by straight-through type valve body (13), valve seat (18) in valve body (13) chamber, through hole spheroid (14), valve gap (17) and handwheel (2) coupled above the valve body (13) constitute, it is characterized in that: vertical valve rod (9) is housed in the middle of in described valve gap (17) chamber, supporting sleeve (11) is housed between chamber lower inside and the valve rod (9), spline housing (10), Sealing group (8), gland (7) and locking swivel nut (6), back nut (4) and pad (5) are housed between chamber inside upper part and the valve rod (9), and it is fixing by outer button swivel nut (3) and valve gap (17), position, described valve rod (9) upper end is connected so that spiral shell button and back nut (4) are inboard, valve rod (9) position, middle and lower part is provided with spline segment (22), be complementary with the spline housing (10) of valve gap (17) inboard, chamber, valve rod (9) lower end part is provided with tiltedly flat section (19), spiral section (20) and straight section (21) partially, be provided with in the insertion neck chamber, through hole spheroid (14) top, valve rod (9) underpart, in the middle of two the horizontal round pin posts (12) that are complementary with it, be provided with in embedding valve body (13) bottom centre of the newel post positioning chamber under the described through hole spheroid (14), the joint shaft bearing that is complementary with it (15) inboard.
2, spline spiral according to claim 1 does not have the friction ball valve, it is characterized in that: described handwheel (2) is enclosed within back nut (4) outside and connects with the phase embedding of hexagonal side, and fastening by the female cover of the back of the body (1).
3, spline spiral according to claim 1 and 2 does not have the friction ball valve, it is characterized in that: described valve rod (9) tip portion is equipped with mark post (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113212 CN2895925Y (en) | 2006-04-28 | 2006-04-28 | Spline spiral friction-free ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113212 CN2895925Y (en) | 2006-04-28 | 2006-04-28 | Spline spiral friction-free ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895925Y true CN2895925Y (en) | 2007-05-02 |
Family
ID=38065501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620113212 Expired - Fee Related CN2895925Y (en) | 2006-04-28 | 2006-04-28 | Spline spiral friction-free ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895925Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828675A (en) * | 2020-08-07 | 2020-10-27 | 郑州铝都阀门有限公司 | Sealed ball valve that revolves that area locking clamping ring and disk seat can one-way float |
-
2006
- 2006-04-28 CN CN 200620113212 patent/CN2895925Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828675A (en) * | 2020-08-07 | 2020-10-27 | 郑州铝都阀门有限公司 | Sealed ball valve that revolves that area locking clamping ring and disk seat can one-way float |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 Termination date: 20140428 |