CN2649883Y - Magnetic-sealed cleanable three-eccentric half-ball valve - Google Patents
Magnetic-sealed cleanable three-eccentric half-ball valve Download PDFInfo
- Publication number
- CN2649883Y CN2649883Y CN 200320113140 CN200320113140U CN2649883Y CN 2649883 Y CN2649883 Y CN 2649883Y CN 200320113140 CN200320113140 CN 200320113140 CN 200320113140 U CN200320113140 U CN 200320113140U CN 2649883 Y CN2649883 Y CN 2649883Y
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- valve body
- rotary shaft
- valve
- rotatingshaft
- bent axle
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Abstract
The utility model relates to a semisphere valve, in particular to a magnet-tight triple eccentricity semisphere valve which can be cleaned and washed. A valve cap is fixed in the upper end of a valve body. An upper rotary shaft travels through the valve cap. A lower rotary shaft is arranged inside the back surface of the valve body. A crankshaft is arranged between the upper and lower rotary shafts. The utility model adopts a triple-eccentricity structure. The lower end of the upper rotary shaft and the upper end of the crankshaft are made into a prism, which matches a spacing flute. The upper end of the lower rotary shaft is fixed and connected to the lower end of the crankshaft, while the lower end of the lower rotary shaft is arranged inside the back surface of the valve body. A certain shift is provided between the prism and the spacing flute, and the lower rotary shaft and the rotary shaft hole, in a fliud flowing direction. The utility model adopts a triple-eccentricity structure and magnet-tight structure, with good sealing effect. In addition, a crankshaft has a shift in opposite to the rotary shaft. In this way, the bearing capacity of the semisphere valve is strengthened. The utility model has a fouling cleaning mechanism which can wash the semisphere valve at any time. The utility model saves labor and time. The maintenance cost is lowered. The utility model is suitable in controlling through-and-off function of various fluidic pipelines, with good social and economic benefit.
Description
One. technical field: the utility model relates to a kind of semispherical valve, particularly relates to a kind of magnetic seal three eccentric half-ball valves capable of washing.
Two. background technique: semispherical valve has been widely used in the control of pipeline fluid medium break-make now, and is with fastest developing speed in American-European countries in recent years, and China is less to the exploitation of ball valve, the especially development of heavy caliber ball valve and exploitation.Because have pressure-bearing and wear problem, at this situation, people design many modified model semispherical valves, as: Chinese patent CN2185351 (patent No. is 94207731.8) discloses a kind of " hard seal eccentric semi ball face valve ", and it contains valve seat, valve body and flap, and the flap sealing surface is a spherical crown, has off-centre with respect to rotating shaft and valve body, stationary bushing is contained in the valve body, and valve seat and adjustment ring are contained in the stationary bushing pressure ratio can regulate between its sealing surface.And for example: Chinese patent CN2572156 (patent No. is 02278254.0) discloses a kind of " eccentric hard sealing semispherical valve ", it comprises valve body, valve gap, spool, valve seat and valve seat trim ring, spool has an off-centre with respect to valve body, has flexible gaskets between valve seat and the valve seat trim ring.Above-mentioned patented technology is reduced friction, sealing is better, and can regulate pressure, but also has some defectives: the shearing force that fluid is born in rotating shaft is bigger, the bearing capacity of this restriction valve, sealing surface pressure is regulated complexity in addition, and can not compensate automatically, during adjusting, valve need be taken apart from pipeline, carry out manual operation, time-consuming taking a lot of work increases maintenance expenses.
Three. the content of model utility:
The purpose of this utility model: overcome the defective of prior art, a kind of change rotatingshaft stressing conditions is provided, improve bearing capacity, and the magnetic seal that can reduce wear three eccentric half-ball valves capable of washing.
The technical solution of the utility model: a kind of magnetic seal three eccentric half-ball valves capable of washing, be fixed with valve gap in the valve body upper end, last rotatingshaft runs through valve gap, lower rotary shaft is installed in the rotary shaft hole of valve body inner bottom surface, bent axle is installed between the rotatingshaft up and down, this bent axle is provided with spherical crown and matches with valve body sealing surface, the centre of sphere of spherical crown has bidimensional off-centre with respect to the center of rotatingshaft up and down, there is one dimension off-centre at the center of rotatingshaft with respect to the valve body center up and down, last rotatingshaft lower end and bent axle upper end prism each other is connected with the limited impression that is complementary, fixedly connected with the bent axle lower end in following rotatingshaft upper end, its lower end is arranged in the rotary shaft hole of valve body inner bottom surface, has certain displacement amount between rotatingshaft and the rotary shaft hole on fluid flow direction under reaching between described prism and the limited impression.
Match with the rotary shaft hole of valve body inner bottom surface in following rotatingshaft lower end, its upper end with the bent axle lower end each other prism be connected with the limited impression that is complementary, on fluid flow direction, have certain displacement amount between described prism and the limited impression.
The high elasticity sealing material is installed in having the space of displacement amount, and it flows to displacement amount is 1～2mm, and the cross section of prism is a rectangular, or is square, or is triangle, or is polygonal, or is arc.
The bent axle outer surface is a spherical crown, perhaps is fixed with spherical crown by fastening piece on the bent axle outer surface, is provided with seal ring with the contacted spherical crown of valve body sealing surface, and spherical crown or valve body sealing surface have magnetic, can carry out magnetic seal.
Be provided with end cap on valve body one side, this end cap is provided with shoal materials and cleans intake pipe and outlet pipe.
The beneficial effects of the utility model:
1. the utility model changes the stressing conditions of rotatingshaft, improves bearing capacity.Last rotatingshaft lower end adopts prism to be connected with limited impression with the bent axle upper-end surface, and there are certain displacement in prism and limited impression at fluid flow direction, in like manner, following rotatingshaft lower end is connected equally with the valve body inner bottom surface, when this spline structure makes bent axle stressed, move a micro-displacement, its spherical crown is fitted snugly on the valve body sealing surface to fluid flow direction, fluid is converted into positive pressure to valve body to the shearing force of rotatingshaft, has increased the bearing capacity of valve body.
2. the utility model good sealing effect, wearing and tearing are lacked.On spherical crown or valve body sealing surface, magnetize, make it have the magnetic self-sealing function, and on spherical crown, be provided with seal ring, so good sealing effect, adopt three eccentric structures, the seal ring that existing ball valve is embedded in the rate of flow of fluid section is transformed to the rate of flow of fluid section, and the wearing and tearing of seal ring are significantly reduced.
3. the utility model design has the shoal materials wiper mechanism, when existing shoal materials to influence open and close in the semispherical valve, open the intake pipe and the outlet pipe of wiper mechanism, wash with external water source, semispherical valve need not be pulled down from pipeline and be cleaned, save engineering time and expense, improve the performance of enterprises.
4. the utility model applied range is applicable to the break-make control of various fluid lines, implements easily, has good social and economic benefit after the popularization.
Four. description of drawings:
Fig. 1 is the structural representation of magnetic seal three eccentric half-ball valves capable of washing
Fig. 2 is one of side view structural representation of magnetic seal shown in Figure 1 three eccentric half-ball valves capable of washing
Fig. 3 is the another kind of structure of bent axle shown in Figure 1
Fig. 4 attempts two of structural representation for the side of magnetic seal shown in Figure 1 three eccentric half-ball valves capable of washing
Five. embodiment:
Embodiment one: referring to Fig. 1 and Fig. 2, among the figure, valve gap 3 is fixed on the upper-end surface of valve body 5 by bolt 4, last rotatingshaft 1 runs through valve gap 3, its surface of contact is provided with seal snap ring 2, lower rotary shaft is installed in valve body 5 inner bottom surfaces, bent axle 6 is installed between the rotatingshaft up and down, spherical crown 10 is fixedlyed connected with bent axle 6 by bolt 11, spherical crown 10 is provided with seal ring 9, this spherical crown 10 matches with valve body 5 sealing surfaces, the centre of sphere of spherical crown 10 has bidimensional off-centre with respect to the center of rotatingshaft up and down, there is one dimension off-centre at the center of rotatingshaft with respect to valve body 5 centers up and down, make the friction of spherical crown 10 minimizings and valve body 5 inner chambers like this, being provided with the cross section in last rotatingshaft 1 lower end is rectangular cylinder 8, be provided with the limited impression 12 that shape is complementary in bent axle 6 upper-end surfaces, wherein cylinder 8 is arranged in restraining groove 12, and the two axially has certain interval at valve body, highly resilient material (not drawing among the figure) is installed in this gap, make the two have certain displacement amount, displacement amount is 1.5mm, in like manner, following rotatingshaft is arranged in the rotary shaft hole of valve body 5 inner bottom surfaces, and rotary shaft hole is as limited impression 13 at this moment, and the two displacement amount also is 1.5mm, such structure can move by longshore current body flow direction bent axle 6, be pressed on the sealing surface of valve body, fluid is converted into positive pressure to valve body 5 to the shearing force of bent axle 6 and rotatingshaft 1, improved the bearing capacity of semispherical valve greatly.
Have magnetic at spherical crown 10 or valve body sealing surface, can carry out magnetic seal, make sealing effect better.
Embodiment two: referring to Fig. 3, present embodiment is basic identical with embodiment one, something in common does not repeat, difference is: following rotatingshaft lower end is arranged in rotary shaft hole, it is that leg-of-mutton prism is arranged in the limited impression that bent axle 6 lower ends are complementary that its upper end is provided with the cross section, in the space between prism and limited impression highly resilient material is installed, and the two displacement amount is 1.2mm, bent axle 6 outer surfaces directly process spherical crown 10, with valve body 5 sealing surface contact matching.
Embodiment three: referring to Fig. 4, present embodiment is basic identical with embodiment one, and something in common does not repeat, and difference is: its displacement amount is 1.6mm, the side of valve body 5 is provided with side end cap 7, shoal materials is installed on this end cap 7 cleans intake pipe 14 and outlet pipe 15, when existing shoal materials to influence open and close in the semispherical valve, open intake pipe 14 and outlet pipe 15, wash with external water source, semispherical valve need not be pulled down from pipeline and be cleaned, save engineering time and expense, improve the performance of enterprises.
Embodiment four: present embodiment is basic identical with embodiment two, something in common does not repeat, difference is: its displacement amount is 1.8mm, and the side of valve body 5 is provided with side end cap 7, shoal materials is installed on this end cap 7 cleans intake pipe 14 and outlet pipe 15, when existing shoal materials to influence open and close in the semispherical valve, open intake pipe and 14 outlet pipes 15, wash, semispherical valve need not be pulled down from pipeline and be cleaned with external water source, save engineering time and expense, improve the performance of enterprises.
Claims (6)
1. magnetic seal three eccentric half-ball valves capable of washing, be fixed with valve gap in the valve body upper end, last rotatingshaft runs through valve gap, lower rotary shaft is installed in the rotary shaft hole of valve body inner bottom surface, bent axle is installed between the rotatingshaft up and down, this bent axle is provided with spherical crown and matches with valve body sealing surface, it is characterized in that: the centre of sphere of spherical crown has bidimensional off-centre with respect to the center of rotatingshaft up and down, there is one dimension off-centre at the center of rotatingshaft with respect to the valve body center up and down, last rotatingshaft lower end and bent axle upper end prism each other is connected with the limited impression that is complementary, fixedly connected with the bent axle lower end in following rotatingshaft upper end, its lower end is arranged in the rotary shaft hole of valve body inner bottom surface, has certain displacement amount between described prism and the limited impression and between following rotatingshaft and the rotary shaft hole on fluid flow direction.
2. semispherical valve according to claim 1, it is characterized in that: match with the rotary shaft hole of valve body inner bottom surface in following rotatingshaft lower end, its the upper end with the bent axle lower end each other prism be connected with the limited impression that is complementary, on fluid flow direction, have certain displacement amount between described prism and the limited impression.
3. semispherical valve according to claim 1 and 2 is characterized in that: the high elasticity sealing material is installed in having the space of displacement amount, and it flows to displacement amount is 1～2mm, the cross section of prism is a rectangular, or is square, or is triangle, or be polygonal, or be arc.
4. semispherical valve according to claim 1, it is characterized in that: the bent axle outer surface is a spherical crown, perhaps is fixed with spherical crown by fastening piece on the bent axle outer surface, is provided with seal ring with the contacted spherical crown of valve body sealing surface, spherical crown or valve body sealing surface have magnetic, can carry out magnetic seal.
5. semispherical valve according to claim 3 is characterized in that: be provided with end cap on valve body one side, this end cap is provided with shoal materials and cleans intake pipe and outlet pipe.
6. semispherical valve according to claim 4 is characterized in that: be provided with end cap on valve body one side, this end cap is provided with shoal materials and cleans intake pipe and outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113140 CN2649883Y (en) | 2003-10-30 | 2003-10-30 | Magnetic-sealed cleanable three-eccentric half-ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113140 CN2649883Y (en) | 2003-10-30 | 2003-10-30 | Magnetic-sealed cleanable three-eccentric half-ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649883Y true CN2649883Y (en) | 2004-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320113140 Expired - Fee Related CN2649883Y (en) | 2003-10-30 | 2003-10-30 | Magnetic-sealed cleanable three-eccentric half-ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2649883Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135189A (en) * | 2010-12-29 | 2011-07-27 | 吴忠仪表有限责任公司 | Wing-protective type flow adjusting ball core for eccentric rotary valve |
| CN102226472A (en) * | 2011-04-21 | 2011-10-26 | 昆山维萨阀门有限公司 | Three-eccentric hard sealed plug valve |
| CN102287545A (en) * | 2011-07-20 | 2011-12-21 | 浙江宝龙阀门制造有限公司 | Butterfly ball valve |
-
2003
- 2003-10-30 CN CN 200320113140 patent/CN2649883Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135189A (en) * | 2010-12-29 | 2011-07-27 | 吴忠仪表有限责任公司 | Wing-protective type flow adjusting ball core for eccentric rotary valve |
| CN102226472A (en) * | 2011-04-21 | 2011-10-26 | 昆山维萨阀门有限公司 | Three-eccentric hard sealed plug valve |
| CN102287545A (en) * | 2011-07-20 | 2011-12-21 | 浙江宝龙阀门制造有限公司 | Butterfly ball valve |
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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: 20041020 Termination date: 20121030 |