CN202432006U - Novel ball valve - Google Patents
Novel ball valve Download PDFInfo
- Publication number
- CN202432006U CN202432006U CN2012200177101U CN201220017710U CN202432006U CN 202432006 U CN202432006 U CN 202432006U CN 2012200177101 U CN2012200177101 U CN 2012200177101U CN 201220017710 U CN201220017710 U CN 201220017710U CN 202432006 U CN202432006 U CN 202432006U
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- valve
- valve seat
- seal ring
- ball valve
- spool
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Abstract
The utility model provides a novel ball valve, belongs to the technical field of machinery, and solves the technical problems that the sealing performance of a sealing ring and a valve core is low and the like because a wear loss amount cannot be compensated after the sealing ring and the valve core are worn after the conventional ball valve is used for a long time. The novel ball valve comprises a valve body, the valve core and a valve seat arranged between the valve body and the valve core; the sealing ring made of a rubber material is arranged between the inside surface of the valve seat and the inside surface of the valve body; the valve seat is made of a polytetrafluoroethylene material; the cross section of the valve seat is nearly bent into a right-angle corner shape; the outside of the corner of the cross section is contacted with the valve core; and the sealing ring is placed inside the corner of the cross section. The novel ball valve has the advantages that the sealing stability of the sealing ring is improved, and the service life of the sealing ring is prolonged.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of valve, particularly a kind of ball valve.
Background technique
At present in the relevant device of the draining of industry and agriculture usefulness and liquid control system, switch is rapid, easy to operate, fluid resistance is little because ball valve has, advantages of simple structure and simple and extensively being adopted.Ball valve is developed by stopcock, and its open-shut device utilizes spool to revolve the purpose that turn 90 degrees the realization opening and closing around the axis of valve rod as a spheroid spool.
Because the spool in the ball valve is spherical, thereby during work, the seal ring of spool outer circumferential face and valve seat interior surface keeps sealing state, and the polytetrafluoroethylmaterial material of ordinary ball valve employing is at present processed; Though have certain elasticity, elasticity is relatively poor, because ball valve core often rotates in the using process; Will make ring wear like this, because wear extent can't be compensated, after long-time the use; The sealing of seal ring can weaken, and makes ball valve send the phenomenon of existing leakage, influences the use of ball valve.The precision defective of ball valve in assembling and production process makes the position relation of ball valve and seal ring have deviation in addition; The pressure that so just makes each one of seal ring receive is different; Deformation quantity is different; Because the teflon relative resilient is relatively poor, the active force that makes rotational valve core need increases, and also makes the lifetime of seal ring.
In order to address the above problem; People improve seal ring; For example the disclosed a kind of ball valve of Chinese patent document is with compound seal element [authorizing publication number CN2512961Y]; Be by the silicone rubber O-ring seals with gather tetrafluoro ball face sealing circle and carry out the compound institute of machinery and constitute, the combination of the material through two different hardness changes the characteristic of seal element, the working life of increase seal element.This silicone rubber O-ring seals is assemblied in the position of gathering tetrafluoro ball face sealing circle and can't shares and gather tetrafluoro ball face sealing circle and receive the active force that spool awards; Therefore do not change the elasticity that this gathers tetrafluoro ball face sealing circle; Make to can not get compensation, make seal ring and the spool sealing variation after use for a long time in long-time back seal ring and the spool wearing and tearing back abrasion loss amount used.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of ball valve, and this ball valve has good sealing effect, characteristics that valve core rotation moment is lower.
The purpose of the utility model can realize through following technical proposal: a kind of ball valve; Comprise valve body, spool and be arranged at valve seat between the two, it is characterized in that, be provided with the seal ring that adopts rubber material to process between the inner side surface of described valve seat and valve body; Described valve seat adopts polytetrafluoroethylmaterial material to process; The cross section of described valve seat is the rectangular bent angle shape of general curved, and its outside, bight contacts with described spool, and it is inboard that described seal ring is positioned over its bight.
Offer some passages in the valve body, spool is arranged on the intersection of passage, and ball valve also comprises valve rod, and valve rod is arranged on the valve body and links to each other with spool controls the rotation of spool, drives valve core rotation through rotation valve rod and realizes the unlatching of ball valve or close; When rotational valve core; Spool and valve seat lean; Spool can be given and the active force to the inboard, bight in the outside, valve seat bight, because the elasticity of rubber material is bigger than the elasticity of polytetrafluoroethylmaterial material, makes the elasticity of valve seat increase so; Make and reduce in the rubbing action between valve seat and the spool, reduced the needed moment of valve core rotation.
In above-mentioned ball valve, the cross section of described seal ring is rounded, and the sealing circle is in compressive state.Valve seat can be worn after use, because seal ring is in compressive state, wearing and tearing back seal ring can compensate the wear extent that valve seat receives, and increases the working life of valve seat.
As other a kind of situation, in above-mentioned ball valve, the cross section of described seal ring is rectangular, and the sealing circle is in compressive state.It is inboard that seal ring is filled full whole bight.
In above-mentioned ball valve, the outside, described bight has a chamfering plane.Spool is spherical, and the chamfering plane has increased the area of contact of valve seat and spool.
In above-mentioned ball valve, described seal ring is arranged on the valve seat through the mode of socket.
Compared with prior art, the sealing configuration of this ball valve has the following advantages:
1, the hardness of the hardness ratio seal ring of elastic component is little, has increased the elasticity of seal ring, has reduced the wear extent that seal ring receives, and has increased the working life of seal ring.
2, between seal ring and valve body, be provided with the elastic component that is in compressive state with crossing, elastic component expansion compensate for wear amount behind ring wear, the sealing that has improved seal ring is stable.
Description of drawings
Fig. 1 is one li of embodiment's ball valve and the structural representation of this sealing configuration.
Fig. 2 is the enlarged diagram of A portion among Fig. 1.
Fig. 3 is two li of embodiments' ball valve and the structural representation of this sealing configuration.
Fig. 4 is the enlarged diagram of B portion among Fig. 3.
Among the figure, 11a, valve body; 11b, intake tunnel; 11c, exhalant canal; 12, spool; 13, valve rod; 14, seal ring; 15, valve seat.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
Embodiment one
Like Fig. 1, shown in Figure 2; A kind of ball valve comprises valve body 11a, spool 12 and is arranged at valve seat 15 between the two, and what in present embodiment one, adopt is two pass ball valves; Offer two passages in the valve body 11a; Comprise intake tunnel 11b and exhalant canal 11c, spool 12 is arranged on the intersection of intake tunnel 11b and exhalant canal 11c, and ball valve also comprises valve rod 13; Valve rod 13 is arranged on to link to each other on the valve body 11a and with spool 12 controls the rotation of spool 12, drives spool 12 rotations through rotation valve rod 13 and realizes opening or closing of valve.
Be provided with the seal ring 14 that adopts rubber material to process between the inner side surface of valve seat 15 and valve body 11a; Valve seat 15 adopts polytetrafluoroethylmaterial material to process; The cross section of valve seat 15 is the rectangular bent angle shape of general curved; Its outside, bight contacts with described spool 12, and the outside, bight has a chamfering plane.Spool 12 is spherical, and the plane becomes chamfering to increase the area of contact of valve seat 15 with spool 12.It is inboard that seal ring 14 is positioned over its bight.Seal ring 14 is arranged on the valve seat 15 through the mode of socket.
The cross section of seal ring 14 is rounded, and sealing circle 14 is in compressive state.Valve seat 15 can be worn after use, because seal ring 14 is in compressive state, wearing and tearing back seal ring 14 can compensate the wear extent that valve seat 15 receives, and increases the working life of valve seat 15.
When rotational valve core 12; Spool 12 leans with valve seat 15; Spool 12 can be given and the active force to the inboard, bight in the outside, valve seat 15 bights, because the elasticity of rubber material is bigger than the elasticity of polytetrafluoroethylmaterial material, makes the elasticity of valve seat 15 increase so; Make and reduce in the rubbing action between valve seat 15 and the spool 12, reduced spool 12 and rotated needed moment.
Embodiment two
Content in the present embodiment two roughly with embodiment one in same content, the cross section of different the is seal ring 14 among the embodiment one is rounded; Like Fig. 3, shown in Figure 4; What adopt in the present embodiment two is tee ball valve; Offer three passages in the valve body 11a, comprise an intake tunnel 11b and two exhalant canal 11c, the cross section of seal ring 14 is rectangular; And sealing circle 14 is in compressive state, and it is inboard that seal ring 14 is filled full whole bight.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used valve body 11a morely; Intake tunnel 11b; Exhalant canal 11c; Spool 12; Valve rod 13; Seal ring 14; Valve seat 15 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (5)
1. ball valve; Comprise valve body (11a), spool (12) and be arranged at valve seat (15) between the two, it is characterized in that, be provided with the seal ring (14) that adopts rubber material to process between the inner side surface of described valve seat (15) and valve body (11a); Described valve seat (15) adopts polytetrafluoroethylmaterial material to process; The cross section of described valve seat (15) is the rectangular bent angle shape of general curved, and its outside, bight contacts with described spool (12), and it is inboard that described seal ring (14) is positioned over its bight.
2. ball valve according to claim 1 is characterized in that, the cross section of described seal ring (14) is rounded, and sealing circle (14) is in compressive state.
3. ball valve according to claim 1 is characterized in that, the cross section of described seal ring (14) is rectangular, and sealing circle (14) is in compressive state.
4. according to claim 1 or 2 or 3 described ball valves, it is characterized in that the outside, described bight has a chamfering plane.
5. according to claim 1 or 2 or 3 described ball valves, it is characterized in that described seal ring (14) is arranged on the valve seat (15) through the mode of socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200177101U CN202432006U (en) | 2012-01-16 | 2012-01-16 | Novel ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200177101U CN202432006U (en) | 2012-01-16 | 2012-01-16 | Novel ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202432006U true CN202432006U (en) | 2012-09-12 |
Family
ID=46781452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200177101U Expired - Lifetime CN202432006U (en) | 2012-01-16 | 2012-01-16 | Novel ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202432006U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708991A (en) * | 2018-05-21 | 2018-10-26 | 曲阜天博汽车零部件制造有限公司 | A kind of new-energy automobile threeway electronics water valve |
| CN114382918A (en) * | 2020-10-21 | 2022-04-22 | 中国科学院微电子研究所 | Three-way valve and semiconductor manufacturing equipment |
-
2012
- 2012-01-16 CN CN2012200177101U patent/CN202432006U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708991A (en) * | 2018-05-21 | 2018-10-26 | 曲阜天博汽车零部件制造有限公司 | A kind of new-energy automobile threeway electronics water valve |
| CN114382918A (en) * | 2020-10-21 | 2022-04-22 | 中国科学院微电子研究所 | Three-way valve and semiconductor manufacturing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
|
| CX01 | Expiry of patent term |