CN205618721U - Fixed ball valve - Google Patents
Fixed ball valve Download PDFInfo
- Publication number
- CN205618721U CN205618721U CN201620207719.7U CN201620207719U CN205618721U CN 205618721 U CN205618721 U CN 205618721U CN 201620207719 U CN201620207719 U CN 201620207719U CN 205618721 U CN205618721 U CN 205618721U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- spheroid
- track
- sealing washer
- 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 provides a fixed ball valve, includes the valve body, is provided with the spheroid in the valve body, is provided with the disk seat between valve body and the spheroid, is provided with a recess in the disk seat, places the spring in the recess, the spring in still be provided with a cavity, be equipped with electrical coil in the cavity, the disk seat in still be provided with the track, the track front end be provided with the sealing washer, be provided with on the sealing washer around two archs, be provided with two slides on the track and be used for holding the arch, the sealing washer is two -layer structure, the inlayer is provided with magnetic ring forever. The utility model discloses following beneficial effect has: electrical coil in the magnetic variation, to the attraction of sealing washer with repel, two the miniature slips of lug in the track, when the valve body rotated, the sealing washer was attracted, frictional force reduces, durable degree is strengthened, when the valve body is closed, carries out the secondary seal, sealed effectual, the reaction rate is fast.
Description
Technical field
This utility model relates to valve field, is specifically related to a kind of fixing ball valve.
Background technology
Ball valve is one of widely used valve, and its operation principle, as plug valve, all makes valve opening and closing by rotary spool, but lighter than cock valve switching, and relative volume is little, can make big-diameter ball valve.Ball valve sealing is reliable, and simple in construction is easy to maintenance, and sealing surface and spheroid, often at closure state, are difficult to by medium erosion, thus are widely used in industries such as oil, chemical industry, metallurgy.
The spheroid of fixing ball valve is fixing, and spheroid is provided with supporting axis, equipped with bearing on supporting axis, therefore, after by pressure medium, spheroid does not produce movement, and valve seat produces mobile, making sealing member be pressed on spheroid, to ensure to seal, ball valve mainly realizes a kind of valve opened and closed by a porose spheroid around the axis 90-degree rotation of valve rod, owing to its channel diameter is identical with internal diameter of the pipeline, so fluid resistance is little, switch is rapidly, convenient, sealing reliability is high, and the life-span is long, is widely used.Existing ball valve is roughly divided into soft seal and hard sealing two kinds by the material of sealing surface.
During the work of soft seal valve seat, utilize the intrinsic elastic characteristic of soft sealing material, under pretightning force or pressure medium act on jointly, make seat material produce elastic and fraction plastic deformation and spheroid compression, compensate out-of-roundness and the surface microscopic unevenness of spheroid, thus reach to seal.After ball valve assembling and setting is good, the pretightning force on sealing surface just immobilizes, and soft sealing ball valve valve seat is made up of valve seat soft seal circle and valve seat bracing ring two parts.Close and in switching process at ball valve, the moment particularly opened and closed, departed from soft seal circle by spheroid, under pressure medium and impact, medium is caused to pass from the two joint portion and leak, the serious soft seal circle that causes routs up seal failure from bracing ring groove, soft seal circle is that nonmetallic materials are made, bracing ring is that metal material is made, the two is assembled into one and connects reliable and seal, it is impossible to methods of attachment such as welding, riveting, screw threads, be flexible coupling even if using, in rotary course, spheroid still can produce friction to the sealing ring of outer layer.
Utility model content
For deficiency of the prior art, this utility model provides a kind of fixing ball valve, solves sealing member durability degree poor, the problem that seal failure routed up from bracing ring groove by soft seal circle.
For reaching object above, the technical solution adopted in the utility model is:
A kind of fixing ball valve, including valve body, spheroid it is provided with in valve body, it is provided with valve seat between described valve body and spheroid, a groove it is provided with in described valve seat, spring is placed in groove, a cavity it is additionally provided with in described spring, being provided with hot-wire coil in cavity, be additionally provided with track in described valve seat, described track front end is provided with sealing ring, former and later two it are provided with protruding on described sealing ring, being provided with two slideways on described track for accommodating projection, described sealing ring is double-layer structure, and internal layer is provided with magnet ring.After the hot-wire coil sense of current changes, magnet ring produces gravitation or repulsion, utilizes the protruding and cooperation of slideway, realize micro-movement, reduce the probability of the sealing ring that comes off, rotation process rubs little, during valve closing, it is achieved the secondary seal after valve seat compensation, good sealing effect.
As preferably, in described valve seat, it is additionally provided with O RunddichtringO.O RunddichtringO is to playing sealing function between valve seat and valve body.
As preferably, being additionally provided with valve rod in described valve body, described valve rod is connected with spheroid, and described valve stem sleeve is located in upper bearing (metal) and lower bearing.The setting of metal (upper, reduces friction, eliminates the huge sealing load promoting spheroid to be formed with seal receptacle due to inlet pressure and causes excessive moment of torsion.
As preferably, described valve body is provided above upper end cover, and lower section is provided with bottom end cover.
Compared with prior art, this utility model have the advantages that hot-wire coil in heat treatment, attraction and the repulsion to sealing ring, two projections micro sliding in orbit, when valve body rotates, sealing ring is attracted, and frictional force reduces, and durability degree is strengthened, when valve body is closed, carrying out secondary seal, good sealing effect, response speed is fast.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model.
Fig. 2 is the structural representation of valve seat of the present utility model.
Fig. 3 is the schematic diagram of track of the present utility model.
Detailed description of the invention
Hereinafter describe and be used for disclosing this utility model so that those skilled in the art are capable of this utility model.Preferred embodiment in below describing is only used as citing, it may occur to persons skilled in the art that other obvious modification.
nullA kind of fixing ball valve，Including valve body 4，Spheroid 1 it is provided with in valve body 4，It is provided with valve seat 5 between described valve body 4 and spheroid 1，It is provided with a groove in described valve seat 5，Spring 9 is placed in groove，It is additionally provided with a cavity in described spring 9，Hot-wire coil 91 it is provided with in cavity，It is additionally provided with track 51 in described valve seat 5，Described track 51 front end is provided with sealing ring 52，Former and later two it are provided with protruding on described sealing ring 52，Two slideways it are provided with for accommodating projection on described track 51，Described sealing ring 52 is double-layer structure，Internal layer is provided with magnet ring，Described sealing ring 52 outer layer is combined by nitrile rubber and butadiene rubber，It is additionally provided with O RunddichtringO 10 in described valve seat 5，It is additionally provided with valve rod 8 in described valve body 4，Described valve rod 8 is connected with spheroid 1，Described valve rod 8 is sheathed in upper bearing (metal) 7 and lower bearing 2，Described valve body 4 is provided above upper end cover 6，Lower section is provided with bottom end cover 3.
In use, valve rod 8 typically can be provided with handle, swing handle, when spheroid 1 90-degree rotation under the drive of valve rod 8, the sealing principle of spheroid 1: becoming an overall spheroid 1 with valve rod 8 can be freely rotatable in sliding up and down bearing or rolling bearing, sealing ring 52 is installed in the valve seat 5 of activity, movable valve seat 5 and valve body 4 seal with O-ring seals, valve seat 5 is compressed in advance by spring 9, when ball valve is closed, repeatedly friction during owing to using, valve seat 5 has certain abrasion, the pressure relying on the first spring 9 presses to spheroid 1 valve seat 5, play compensating action.
In rotary course, coil electricity on hot-wire coil 91, now hot-wire coil 91 produces and the contrary magnetic of magnet ring in sealing ring 52, hot-wire coil 91 produces gravitation to sealing ring 52, under graviational interaction, sealing ring 52 is to contract on slideway, and the contact of sealing ring 52 and spheroid 1 diminishes, abrasion reduces, and increases the durability degree of sealing ring 52.
When valve closing, coil no power on hot-wire coil 91, now hot-wire coil 91 produces and the identical magnetic of magnet ring in sealing ring 52, hot-wire coil 91 produces repulsion to sealing ring 52, and under repulsion effect, sealing ring 52 is extrapolated on slideway, sealing ring 52 withstands spheroid 1, contact friction force becomes big, and sealing effectiveness is greatly reinforced, it is achieved that secondary seal.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; simply principle of the present utility model described in above-described embodiment and description; on the premise of without departing from this utility model spirit and scope, this utility model also has various changes and modifications, and these changes and improvements both fall within the range of claimed this utility model.The protection domain that this utility model requires is defined by appending claims and equivalent thereof.
Claims (4)
1. a fixing ball valve, including valve body (4), spheroid (1) it is provided with in valve body (4), it is provided with valve seat (5) between described valve body (4) and spheroid (1), it is provided with a groove in described valve seat (5), spring (9) is placed in groove, it is characterized in that, it is additionally provided with a cavity in described spring (9), hot-wire coil (91) it is provided with in cavity, it is additionally provided with track (51) in described valve seat (5), described track (51) front end is provided with sealing ring (52), former and later two it are provided with protruding on described sealing ring (52), two slideways it are provided with for accommodating projection on described track (51), described sealing ring (52) is double-layer structure, internal layer is provided with magnet ring.
A kind of fixing ball valve the most according to claim 1, it is characterised in that be additionally provided with O RunddichtringO (10) in described valve seat (5).
A kind of fixing ball valve the most according to claim 2, it is characterized in that, it is additionally provided with valve rod (8) in described valve body (4), described valve rod (8) is connected with spheroid (1), and described valve rod (8) is sheathed in upper bearing (metal) (7) and lower bearing (2).
A kind of fixing ball valve the most according to claim 3, it is characterised in that described valve body (4) is provided above upper end cover (6), and lower section is provided with bottom end cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207719.7U CN205618721U (en) | 2016-03-12 | 2016-03-12 | Fixed ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207719.7U CN205618721U (en) | 2016-03-12 | 2016-03-12 | Fixed ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205618721U true CN205618721U (en) | 2016-10-05 |
Family
ID=57030951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620207719.7U Expired - Fee Related CN205618721U (en) | 2016-03-12 | 2016-03-12 | Fixed ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205618721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516393A (en) * | 2020-12-01 | 2021-03-19 | 中国人民解放军陆军军医大学第一附属医院 | Anti-reflux drainage device |
| CN114144608A (en) * | 2019-06-06 | 2022-03-04 | 罗伯特·博世有限公司 | Fluid valve assembly including fluid actuated seal |
-
2016
- 2016-03-12 CN CN201620207719.7U patent/CN205618721U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114144608A (en) * | 2019-06-06 | 2022-03-04 | 罗伯特·博世有限公司 | Fluid valve assembly including fluid actuated seal |
| CN114144608B (en) * | 2019-06-06 | 2024-05-31 | 罗伯特·博世有限公司 | Fluid valve assembly including fluid driven seal |
| CN112516393A (en) * | 2020-12-01 | 2021-03-19 | 中国人民解放军陆军军医大学第一附属医院 | Anti-reflux drainage device |
| CN112516393B (en) * | 2020-12-01 | 2022-06-14 | 中国人民解放军陆军军医大学第一附属医院 | Anti-reflux drainage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20170312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |