CN202140600U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN202140600U CN202140600U CN201120212741U CN201120212741U CN202140600U CN 202140600 U CN202140600 U CN 202140600U CN 201120212741 U CN201120212741 U CN 201120212741U CN 201120212741 U CN201120212741 U CN 201120212741U CN 202140600 U CN202140600 U CN 202140600U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- spool
- installation channel
- ball
- 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 - Lifetime
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Abstract
The utility model discloses a ball valve, which comprises a valve body, a valve rod and a valve core. An upright valve rod mounting passage is arranged in the valve body; the valve core is disposed in the valve body; the valve rod is positioned in the valve rod mounting passage; one end of the valve rod is connected with the valve core; the other end of the valve rod is equipped with a handle; and a tetrafluoride washer is sleeved on the valve rod. The ball valve is characterized in that an annular bump is also arranged on the valve rod in the circumferential direction; an annular groove is arranged on the annular bump in the circumferential direction; and an O-shaped ring is sleeved in the annular groove. The ball valve is not only easy to assemble but also good in sealing property, and capable of being applicable to occasions having a high sealing property requirement and transporting dangerous mediums.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of ball valve.
Background technique
Ball valve was come out the 1950's, along with the develop rapidly of science and technology, and the updating of production technology and product structure, in the 40 short years, having developed rapidly becomes a kind of main valve class.The flourishing country of industry in the west; The use of ball valve is constantly risen year by year; In China, ball valve is applied in industries such as petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, iron and steel widely, in national economy, occupies critical role.
China's notice of authorization number is CN2670696Y, and notice of authorization day is that the utility model patent on January 12nd, 2005 discloses a kind of ball valve, comprises valve body, spool, valve rod and handle; Spool is positioned at valve body, is provided with seal ring between valve rod and the valve body, and the inner of valve rod is connected with spool; Described valve body has a columnar positioning cylinder in the outer end of valve rod, and the side of positioning cylinder is along the spacing hole that axially has a bar shaped perpendicular to valve rod, and spacing hole is passed in the end of handle; Be connected with the outer end of valve rod, the ball-valve structure that adopts this model utility to provide is though the valve rod of this kind ball valve can overstriking; The connecting end of handle and valve rod can adopt cylindrical shape, to improve its mechanical strength, makes the quality of product raising of ball valve prolong working life; But since only a ring set on valve rod, its sealing effect relatively a little less than, thereby can't be applied to the sealing requirements height; Carry the occasion of danger medium, in sum, this kind ball valve mainly exists sealability relatively poor; Be prone to make the medium leakage and can't be applied to the sealing requirements height, carry the defective and the problem of the occasion of danger medium.
Summary of the invention
The utility model technical problem to be solved provides a kind of good sealing performance ball valve.
For solving the problems of the technologies described above, the utility model provides a kind of ball valve, comprises valve body, valve rod and spool; Have vertical valve rod installation channel in the said valve body, it is inner that said spool is loaded on said valve body, and said valve rod is arranged in said valve rod installation channel; One end of said valve rod is connected with said spool; The other end of said valve rod is equipped with handle, is set with a Tetrafluoro spacer on the said valve rod, and said valve rod upper edge circumferentially also is provided with an annular protrusion; Said annular protrusion upper edge circumferentially offers annular groove, is set with O shape circle in the said annular groove.
The pig of said Tetrafluoro spacer and said annular protrusion.
The diameter of said valve rod can make its upper end from said valve rod installation channel penetrate the said valve rod installation channel and in said valve rod installation channel, rotating freely; The upper end-hole of said valve rod installation channel be provided with one be sleeved on the said valve rod and with the ring hexagonal tooth cap of said valve rod installation channel screw-thread fit; The end of said valve rod and said spool connecting end is provided with a tenon; Said spool is provided with the groove that cooperates with said tenon shape, and it is that rotate in the axle center with said valve rod that the rotation of said valve rod can drive said spool.
Compared with prior art, the beneficial effect of the utility model is:
1. because a kind of ball valve of the utility model circumferentially also is provided with an annular protrusion in the valve rod upper edge; In the use annular protrusion effectively block media from the valve rod installation channel, reveal, make medium back flow, this outer annular protrusion upper edge circumferentially offers annular groove; In annular groove, be set with O shape circle; This O shape circle can prevent further that medium from revealing from the valve rod installation channel, thus O shape circle the further sealing that strengthens the valve rod installation channel is set, so the utility model sealing is better; Thereby can be applied to the sealing requirements height, carry the occasion of danger medium.
2. because the diameter of the valve rod of a kind of ball valve of the utility model can make its upper end from the valve rod installation channel penetrate the valve rod installation channel and in the valve rod installation channel, rotating freely; Simultaneously the upper end-hole of valve rod installation channel be provided with one be sleeved on the valve rod and with the ring hexagonal tooth cap of valve rod installation channel screw-thread fit; The end of valve rod and spool connecting end is provided with a tenon; Spool is provided with the groove that cooperates with tenon shape; It is that rotate in the axle center with the valve rod that the rotation of valve rod can drive spool, and this structural design makes when valve rod is connected with spool shape cooperate and need not to adopt any link, feasible in addition direct the penetrating the valve rod installation channel of upper end of the valve rod installation channel in valve body of valve rod when assembling ball valve; Assemble more conveniently, so the utility model is prone to assembling.
Description of drawings
Fig. 1 is the ssembly drawing of the utility model,
Fig. 2 is the structural representation of valve rod shown in Figure 1.
Fig. 3 is the plan view of valve seat shown in Figure 1.
Fig. 4 is the longitudinal section of valve seat shown in Figure 1.
Among the figure: valve body 10, valve rod 12, spool 14, left cap 16, right cap 18, tenon 20, handle 22; Grip handle lock 24, medium imports and exports 26, runner 28, annular protrusion 30, annular groove 31, O shape circle 32; Tetrafluoro spacer 33, valve seat 34, through hole 36, seal ring 38, hexagonal tooth cap 40, pad 41.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is explained further details
Referring to a kind of ball valve shown in Figure 1, comprise valve body 10, valve rod 12, spool 14, left cap 16 and right cap 18, have vertical valve rod installation channel in the valve body 10; Spool 14 is loaded on the inside of valve body 10, and valve rod 12 is arranged in the valve rod installation channel, and an end of valve rod 12 is provided with tenon 20 (referring to shown in Figure 2); Spool 14 is provided with the groove that cooperates with tenon 20 shapes, and valve rod 12 cooperates with spool 14 shapes, for the other end of easy to operate valve rod 12 is equipped with handle 22; This handle 22 can be the axle center rotation by valve rod 12, and for preventing that misoperation is equipped with grip handle lock 24 on handle 22, left cap 16 is connected with right part with the left part of valve body 10 respectively with right cap 18 in addition; Offer medium on left cap 16 and the right cap 18 respectively and import and export 26, these medium import and export 26 communicate with spool 14 interior runners 28, and spool 14 can make the medium import and export 26 on left cap 16 and the right cap 18 be communicated with or partition in rotation under the drive of valve rod 12; Referring to Fig. 1, shown in Figure 2; Valve rod 12 upper edges circumferentially also are provided with an annular protrusion 30, in the use annular protrusion 30 effectively block media from the valve rod installation channel, reveal, make medium back flow; Further circumferentially offer annular groove 31 in annular protrusion 30 upper edges; Be set with O shape circle 32 in this annular groove 31, this O shape circle 32 can prevent further that medium from revealing from the valve rod installation channel, strengthen the sealing of valve rod installation channel; The longitudinal section of preferred O shape circle 32 is oval; This O shape circle 32 is compressed between valve body 10 and the valve rod 12, is set with Tetrafluoro spacer 33 in the bottom of annular protrusion 30, the sealing of the enhancing ball valve that this Tetrafluoro spacer 33 can be further.
Referring to Fig. 1, Fig. 3 and shown in Figure 4; Between left cap 16 and the spool 14; Be provided with valve seat 34 between right cap 18 and the spool 14; This valve seat 34 its surface in the form of a ring adapts with spool 14; On valve seat 34, be the axle center along circumferentially offering a plurality of through holes 36, when the medium of the ball valve of flowing through is gas or other volatile medias, have the portion gas medium usually and remain in the gap that spool 14, valve seat 34 and valve body 10 surround, when the temperature of external environment raises with valve seat 34 centers; The residual gas medium of this kind just can expand the pressure in this gap is increased; Thereby the situation that medium is revealed takes place, when this kind medium is hazardous medium, just can be detrimental to health, therefore can effectively make residual medium import and export 26 through through hole 36 through medium to get in the conveyance conduits and can not reveal offering through hole 36 on the valve seat 34.Between valve seat 34 and valve body 10, be provided with seal ring 38, the sealing of the enhancing ball valve that sealing circle 38 can be further.
Referring to shown in Figure 1; The diameter of valve rod 12 can make its upper end from the valve rod installation channel penetrate the valve rod installation channel and in the valve rod installation channel, rotating freely; The upper end-hole of valve rod installation channel be provided with one be sleeved on the valve rod and with the ring hexagonal tooth cap 40 of valve rod installation channel screw-thread fit; The end of valve rod 12 and 14 spool connecting ends is provided with a tenon 20; Spool 14 is provided with the groove that cooperates with tenon shape, and it is that rotate in the axle center with valve rod 12 that the rotation of valve rod 12 can drive spool 14, thereby realizes the identical or partition of the medium import and export 26 on left cap 16 and the right cap 18; Can the upper end of valve rod 12 from the valve rod installation channel be penetrated the valve rod installation channel during assembling; Thereby assemble more conveniently, the upper end-hole of valve rod installation channel adopts fixedly valve rod 12 of the ring hexagonal tooth cap 40 that is sleeved on the valve rod 12, between the annular protrusion 30 on hexagonal tooth cap 40 and the valve rod 12, is provided with pad 41; Annular protrusion 30 can be effectively protected in the setting of this pad 41, can also play certain sealing effect simultaneously.
In sum, the utility model not only is prone to assembling, and sealability is better, and can be applied to the sealing requirements height, carries the occasion of danger medium.
The above is merely the preferred embodiments of the utility model; The protection domain of the utility model does not exceed with above-mentioned mode of execution; As long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (3)
1. a ball valve comprises valve body, valve rod and spool, has vertical valve rod installation channel in the said valve body; It is inner that said spool is loaded on said valve body; Said valve rod is arranged in said valve rod installation channel, and an end of said valve rod is connected with said spool, and the other end of said valve rod is equipped with handle; Be set with a Tetrafluoro spacer on the said valve rod; It is characterized in that: said valve rod upper edge circumferentially also is provided with an annular protrusion, and said annular protrusion upper edge circumferentially offers annular groove, is set with O shape circle in the said annular groove.
2. a kind of ball valve according to claim 1 is characterized in that: the pig of said Tetrafluoro spacer and said annular protrusion.
3. a kind of ball valve according to claim 1 and 2; It is characterized in that: the diameter of said valve rod can make its upper end from said valve rod installation channel penetrate the said valve rod installation channel and in said valve rod installation channel, rotating freely; The end of said valve rod and said spool connecting end is provided with a tenon; Said spool is provided with the groove that cooperates with said tenon shape; It is that rotate in the axle center with said valve rod that the rotation of said valve rod can drive said spool, the upper end-hole of said valve rod installation channel be provided with one be sleeved on the said valve rod and with the ring hexagonal tooth cap of said valve rod installation channel screw-thread fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120212741U CN202140600U (en) | 2011-06-22 | 2011-06-22 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120212741U CN202140600U (en) | 2011-06-22 | 2011-06-22 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140600U true CN202140600U (en) | 2012-02-08 |
Family
ID=45551658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120212741U Expired - Lifetime CN202140600U (en) | 2011-06-22 | 2011-06-22 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384282A (en) * | 2011-06-22 | 2012-03-21 | 昆山新莱洁净应用材料股份有限公司 | Ball valve |
| CN105276221A (en) * | 2015-10-16 | 2016-01-27 | 浙江埃尼斯阀门科技有限公司 | Multi-seal ball valve |
-
2011
- 2011-06-22 CN CN201120212741U patent/CN202140600U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384282A (en) * | 2011-06-22 | 2012-03-21 | 昆山新莱洁净应用材料股份有限公司 | Ball valve |
| CN102384282B (en) * | 2011-06-22 | 2013-04-17 | 昆山新莱洁净应用材料股份有限公司 | Ball valve |
| CN105276221A (en) * | 2015-10-16 | 2016-01-27 | 浙江埃尼斯阀门科技有限公司 | Multi-seal ball valve |
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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: 20120208 |
|
| CX01 | Expiry of patent term |