CN204328047U - Ball valve anti-leakage structure - Google Patents
Ball valve anti-leakage structure Download PDFInfo
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- CN204328047U CN204328047U CN201420799625.4U CN201420799625U CN204328047U CN 204328047 U CN204328047 U CN 204328047U CN 201420799625 U CN201420799625 U CN 201420799625U CN 204328047 U CN204328047 U CN 204328047U
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- valve
- mounting pipe
- rod body
- rod mounting
- ball
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Abstract
The utility model relates to a kind of ball valve anti-leakage structure.It solve the problems such as existing sealing property of ball valves difference.Comprise valve chest, valve rod mounting pipe, copper ball and valve-rod body, valve rod mounting pipe week is provided with some annular convex ribs to the inside, the cross section of annular convex rib is up-narrow and down-wide structure, and form annular space on the downside of annular convex rib and between valve-rod body outer circumferential, valve-rod body is arranged with the seal ring between valve rod mounting pipe and valve-rod body, seal ring is sealed conical ring one to one with annular convex rib be from up to down connected in turn by some, the cross section of sealing conical ring presents wide lower narrow structure, and the downside of sealing conical ring inserts in annular space, pressure cap is provided with above seal ring, pressure cap is connected with valve rod mounting pipe by demountable structure.The advantage of this ball valve anti-leakage structure is: reasonable in design, and structure is simple, good stability, good airproof performance, occurs infiltration phenomenon after preventing Long-Time Service outside valve rod.
Description
Technical field
The utility model belongs to valve arrangement technical field, especially relates to a kind of ball valve anti-leakage structure.
Background technique
Ball valve is that open-shut device is driven by valve rod, and around the valve that square work ball valve axis rotates.Ball valve is come out the 1950's, and along with the develop rapidly of science and technology, updating of production technology and product structure, in the 40 short years, has developed rapidly and become a kind of main valve class.In the country of western industrial prosperity, the use of ball valve is constantly risen year by year, such as be used in the ball valve in water knockout drum, radiator, floor heating, air-conditioning and water system, it has the action of 90-degree rotation, faucet body is spheroid and is driven by valve rod, has manhole or passage by its axis.But existing ball valve also exists: intensity is low, and sealing is poor, easily there is infiltration phenomenon outside valve rod, the problems such as poor stability.
In order to solve prior art Problems existing, people have carried out long-term exploration, propose solution miscellaneous.Such as, Chinese patent literature discloses a kind of Leakless durable ball valve structure [application number: 00127845.2], comprise and be interconnected valve body integrally, valve gap and position spool in the inner, valve seat, when ball valve is in full off state, spool outer circumferential face and valve seat inner circumferential contact with each other and keep sealing state, it is characterized in that described valve seat inner circumferential is the surface of a projection in the contacting point with spool outer circumferential face, and be good with the radius of sphericity that described spool outer circumferential face is all less than spool in its penetration hole place each point contiguous to the distance of the spool centre of sphere.
Such scheme to some extent solves the problem of existing sealing property of ball valves difference, but the program still also exists: complex structure, easily occurs infiltration phenomenon, the problem of poor stability after Long-Time Service outside valve rod.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of reasonable in design, the ball valve anti-leakage structure not easily seeped water outside valve rod.
For achieving the above object, the utility model have employed following technical proposal: this ball valve anti-leakage structure, comprise tubular valve chest, described valve chest sidepiece is provided with the valve rod mounting pipe be connected with valve chest inside, in valve chest, be provided with inside there is water channel and be positioned at the copper ball inside valve rod mounting pipe, valve-rod body is inserted with in described valve rod mounting pipe, described valve-rod body one end and copper ball are fixedly linked, the other end extends to outside valve chest, it is characterized in that, described valve rod mounting pipe week is provided with some annular convex ribs to the inside, the cross section of described annular convex rib is up-narrow and down-wide structure, and form annular space on the downside of described annular convex rib and between valve-rod body outer circumferential, described valve-rod body is arranged with the seal ring between valve rod mounting pipe and valve-rod body, described seal ring is sealed conical ring one to one with annular convex rib be from up to down connected in turn by some, the cross section of described sealing conical ring presents wide lower narrow structure, and the downside of described sealing conical ring inserts in annular space, be provided with above described seal ring and lean with seal ring and to be sheathed on the pressure cap on valve-rod body, described pressure cap is connected with valve rod mounting pipe by demountable structure.By demountable structure, pressure cap is resisted against on the upside of sealing conical ring in this structure, thus makes sealing conical ring by annular space shutoff, prevent outside valve-rod body and occur infiltration phenomenon.
In above-mentioned ball valve anti-leakage structure, described demountable structure comprises circumference and is arranged on valve rod mounting pipe week internal thread to the inside, and described pressure cap outer circumferential is provided with the outside thread be meshed with internal thread.
In above-mentioned ball valve anti-leakage structure, the upside of described sealing conical ring is provided with planar annular, and described planar annular outer circumferential is against being arranged on valve rod mounting pipe week to the inside, described planar annular week is to the inside against being arranged on valve rod mounting pipe outer circumferential.Namely planar annular and pressure cap lean.
In above-mentioned ball valve anti-leakage structure, the quantity of the sealing conical ring of each seal ring is two, and described sealing conical ring is fixedly linked.
In above-mentioned ball valve anti-leakage structure, one end week that described valve rod mounting pipe is positioned at inside valve chest is provided with annular groove to the inside, and one end that described valve-rod body is connected with copper ball is provided with the ring-shaped step matched with annular groove.
In above-mentioned ball valve anti-leakage structure, described valve-rod body upper end is provided with butterfly handle by fixed structure, and is provided with the resigning hole inserted for pressure cap on the downside of described butterfly handle.
In above-mentioned ball valve anti-leakage structure, described fixed structure comprises the fixed hole be arranged in the middle part of butterfly handle, is provided with the bolt be connected with valve-rod body in described fixed hole.
Compared with prior art, the advantage of this ball valve anti-leakage structure is: reasonable in design, and structure is simple, good stability, good airproof performance, occurs infiltration phenomenon after preventing Long-Time Service outside valve rod.
Accompanying drawing explanation
The structural representation that Fig. 1 provides for the utility model.
Fig. 2 is the enlarged view at A place in Fig. 1.
In figure, valve chest 1, valve rod mounting pipe 2, annular convex rib 21, annular space 22, internal thread 23, outside thread 24, annular groove 25, ring-shaped step 26, copper ball 3, excessively water channel 31, valve-rod body 4, seal ring 5, sealing conical ring 51, planar annular 511, pressure cap 6, butterfly handle 7, resigning hole 71, fixed hole 72, bolt 73.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1-2, this ball valve anti-leakage structure, comprise tubular valve chest 1, valve chest 1 sidepiece is provided with the valve rod mounting pipe 2 be connected with valve chest 1 inside, in valve chest 1, be provided with inside there is water channel 31 and be positioned at the copper ball 3 inside valve rod mounting pipe 2, valve-rod body 4 is inserted with in valve rod mounting pipe 2, valve-rod body 4 one end and copper ball 3 are fixedly linked, the other end extends to outside valve chest 1, valve rod mounting pipe is provided with some annular convex ribs 21 for 2 weeks to the inside, the cross section of annular convex rib 21 is up-narrow and down-wide structure, and form annular space 22 on the downside of annular convex rib 21 and between valve-rod body 4 outer circumferential, valve-rod body 4 is arranged with the seal ring 5 between valve rod mounting pipe 2 and valve-rod body 4, seal ring 5 is sealed conical ring 51 one to one with annular convex rib 21 be from up to down connected in turn by some, the cross section of sealing conical ring 51 presents wide lower narrow structure, and the downside of sealing conical ring 51 inserts in annular space 22, be provided with above seal ring 5 and lean with seal ring 5 and to be sheathed on the pressure cap 6 on valve-rod body 4, pressure cap 6 is connected with valve rod mounting pipe 2 by demountable structure, by demountable structure, pressure cap 6 is resisted against on the upside of sealing conical ring 51, thus make sealing conical ring 51 by annular space 22 shutoff, prevent outside valve-rod body 4 and occur infiltration phenomenon.
Particularly, demountable structure here comprises circumference and is arranged on valve rod mounting pipe 2 weeks internal thread 23 to the inside, and pressure cap 6 outer circumferential is provided with the outside thread 24 be meshed with internal thread 23.Further, the upside of the sealing conical ring 51 in the present embodiment is provided with planar annular 511, and planar annular 511 outer circumferential is against being arranged on valve rod mounting pipe 2 weeks to the inside, within 511 weeks, to the inside against being arranged on valve rod mounting pipe 2 outer circumferential, namely planar annular 511 and pressure cap 6 lean planar annular.
Further, in the present embodiment, the quantity of the sealing conical ring 51 of each seal ring 5 is two, and sealing conical ring 51 is fixedly linked.In order to strengthen sealing effect further, one end week that valve rod mounting pipe 2 is positioned at inside valve chest 1 is provided with annular groove 25 to the inside, and one end that valve-rod body 4 is connected with copper ball 3 is provided with the ring-shaped step 26 matched with annular groove 25.Here valve-rod body 4 upper end is provided with butterfly handle 7 by fixed structure, and is provided with the resigning hole 71 inserted for pressure cap 6 on the downside of butterfly handle 7.Wherein, fixed structure comprises the fixed hole 72 be arranged in the middle part of butterfly handle 7, is provided with the bolt 73 be connected with valve-rod body 4 in fixed hole 72.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ valve chest 1, valve rod mounting pipe 2, annular convex rib 21, annular space 22, internal thread 23, outside thread 24, annular groove 25, ring-shaped step 26, copper ball 3 herein, cross the term such as water channel 31, valve-rod body 4, seal ring 5, sealing conical ring 51, planar annular 511, pressure cap 6, butterfly handle 7, resigning hole 71, fixed hole 72, bolt 73, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (7)
1. a ball valve anti-leakage structure, comprise tubular valve chest (1), described valve chest (1) sidepiece is provided with the valve rod mounting pipe (2) be connected with valve chest (1) inside, in valve chest (1), be provided with inside there is water channel (31) and the copper ball (3) being positioned at valve rod mounting pipe (2) inner side, valve-rod body (4) is inserted with in described valve rod mounting pipe (2), described valve-rod body (4) one end and copper ball (3) are fixedly linked, the other end extends to valve chest (1) outside, it is characterized in that, described valve rod mounting pipe (2) week is provided with some annular convex ribs (21) to the inside, the cross section of described annular convex rib (21) is up-narrow and down-wide structure, and form annular space (22) between described annular convex rib (21) downside and valve-rod body (4) outer circumferential, described valve-rod body (4) is arranged with the seal ring (5) be positioned between valve rod mounting pipe (2) and valve-rod body (4), described seal ring (5) is sealed conical ring (51) one to one with annular convex rib (21) be from up to down connected in turn by some, the cross section of described sealing conical ring (51) presents wide lower narrow structure, and the downside of described sealing conical ring (51) inserts in annular space (22), described seal ring (5) top is provided with and leans with seal ring (5) and to be sheathed on the pressure cap (6) on valve-rod body (4), described pressure cap (6) is connected with valve rod mounting pipe (2) by demountable structure.
2. ball valve anti-leakage structure according to claim 1, it is characterized in that, described demountable structure comprises circumference and is arranged on valve rod mounting pipe (2) week internal thread (23) to the inside, and described pressure cap (6) outer circumferential is provided with the outside thread (24) be meshed with internal thread (23).
3. ball valve anti-leakage structure according to claim 2, it is characterized in that, the upside of described sealing conical ring (51) is provided with planar annular (511), and described planar annular (511) outer circumferential is against being arranged on valve rod mounting pipe (2) week to the inside, described planar annular (511) week is to the inside against being arranged on valve rod mounting pipe (2) outer circumferential.
4. the ball valve anti-leakage structure according to claim 1 or 2 or 3, is characterized in that, the quantity of the sealing conical ring (51) of each seal ring (5) is two, and described sealing conical ring (51) is fixedly linked.
5. ball valve anti-leakage structure according to claim 1, it is characterized in that, described valve rod mounting pipe (2) be positioned at valve chest (1) inner side be provided with annular groove (25) one end week to the inside, one end that described valve-rod body (4) is connected with copper ball (3) is provided with the ring-shaped step (26) matched with annular groove (25).
6. ball valve anti-leakage structure according to claim 4, it is characterized in that, described valve-rod body (4) upper end is provided with butterfly handle (7) by fixed structure, and described butterfly handle (7) downside is provided with the resigning hole (71) inserted for pressure cap (6).
7. ball valve anti-leakage structure according to claim 6, it is characterized in that, described fixed structure comprises the fixed hole (72) being arranged on butterfly handle (7) middle part, is provided with the bolt (73) be connected with valve-rod body (4) in described fixed hole (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799625.4U CN204328047U (en) | 2014-12-16 | 2014-12-16 | Ball valve anti-leakage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799625.4U CN204328047U (en) | 2014-12-16 | 2014-12-16 | Ball valve anti-leakage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328047U true CN204328047U (en) | 2015-05-13 |
Family
ID=53164408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420799625.4U Expired - Fee Related CN204328047U (en) | 2014-12-16 | 2014-12-16 | Ball valve anti-leakage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204328047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575599A (en) * | 2017-10-11 | 2018-01-12 | 苏州科迪流体控制设备有限公司 | A kind of structure for the high sealing liquid flow control ball valve for being easy to connect |
-
2014
- 2014-12-16 CN CN201420799625.4U patent/CN204328047U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575599A (en) * | 2017-10-11 | 2018-01-12 | 苏州科迪流体控制设备有限公司 | A kind of structure for the high sealing liquid flow control ball valve for being easy to connect |
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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: 20150513 Termination date: 20151216 |
|
| EXPY | Termination of patent right or utility model |