CN102966748A - Floating bulb type cut-off valve - Google Patents
Floating bulb type cut-off valve Download PDFInfo
- Publication number
- CN102966748A CN102966748A CN2012104629988A CN201210462998A CN102966748A CN 102966748 A CN102966748 A CN 102966748A CN 2012104629988 A CN2012104629988 A CN 2012104629988A CN 201210462998 A CN201210462998 A CN 201210462998A CN 102966748 A CN102966748 A CN 102966748A
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- China
- Prior art keywords
- screw rod
- stop valve
- sealed cap
- hair style
- floating ball
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Abstract
The invention discloses a floating bulb type cut-off valve, which comprises a shell, a screw rod and a sealing cap, wherein an accommodating space is formed in the shell; the screw rod and the sealing cap can be arranged in the accommodating space; the sealing cap can be provided with a groove; the screw rod head part of the screw rod can be just accommodated in the groove; the screw rod is movably connected with the sealing cap; and the screw rod is used for transmitting axial force to the sealing cap. Due to the adoption of the cut-off valve, the defects of valve leakage caused by wear of the sealing surface of the conventional cut-off valve and difficulty in aligning a bulb with the shell is are overcome, and the sealing reliability of the cut-off valve is enhanced.
Description
Technical field
The present invention relates to the stop valve field, particularly a kind of floating ball hair style stop valve.
Background technique
Stop valve is the used unit of carrier rocket pressurizing transmission system, and its effect is for ground test tank pressure, manual unlocking stop valve when needing pressure measurement, and the manual-lock sealing can repeatedly be used after pressure measurement finished.At the existing used stop valve of pressurizing transmission system, what its screw rod and sealed cap adopted is integral structure, so that the screw rod sealing surface relatively rotates with housing seal face in the opening-closing process, easily causes sealing surface wear, is unfavorable for sealing; On the other hand, integral structure requires high to the coaxality of screw rod and housing, if thereby the bad sealing surface that easily makes of coaxality misaligns, can not fit tightly and cause leaking.
Summary of the invention
In order to overcome the defective of prior art, the invention discloses a kind of floating ball hair style stop valve, this floating type stop valve has solved existing stop valve sealing surface wear and bulb and housing and has been difficult for aligning the defective that causes valve to be revealed, and has improved the stop valve sealing reliably.
The invention discloses following technological scheme:
A kind of floating ball hair style stop valve comprises housing, also comprises screw rod and sealed cap, and described screw rod and described sealed cap are flexibly connected, and described screw rod transmits axial force to described sealed cap.
Among some embodiments, also comprise baffle plate, be provided with groove on the described sealed cap, described baffle plate is arranged in the described groove, and described sealed cap is flexibly connected by described baffle plate and described screw rod.
Among some embodiments, described screw rod is ball head structure.
Among some embodiments, described sealed cap is floating type.
Among some embodiments, also comprise swivel nut, described swivel nut is connected with described screw rod.
Among some embodiments, also comprise seal ring, described seal ring is arranged at the described housing part that keeps to the side.
Among some embodiments, described swivel nut and described screw rod joint also are provided with O type cushion rubber.
Compared with prior art, beneficial effect of the present invention is as follows:
1, sealed cap and housing horn mouth can be adjusted automatically, are conducive to the applying of sealing surface, have avoided the wearing and tearing of stop valve sealing surface;
2, bulb and housing easily align the defective of avoiding valve to reveal, have improved the stop valve sealing reliably.
Description of drawings
Fig. 1 is the structural representation of specific embodiment of the invention floating ball hair style stop valve.
Embodiment:
The present invention will be further described with specific embodiment by reference to the accompanying drawings in the below:
Embodiment
Such as Fig. 1, a kind of floating ball hair style stop valve comprises housing 1, screw rod 2 and sealed cap 7 at least.Establish containing space in this housing, in this example, this containing space can be bell mouth shape.Screw rod 2 and sealed cap 7 can be arranged in this containing space.
Sealed cap 7 can be arranged in the containing space of this housing 1, and screw rod 2 is flexibly connected with sealed cap 7.Sealed cap 7 can arrange a groove.The screw head of screw rod 2 just can be contained in this groove, and screw rod 2 heads are flexibly connected by a baffle plate 6 and screw rod.Screw rod 2 transmits axial force to described sealed cap; Also state link arm such as Fig. 1 that baffle plate can be fastened on the containing groove that is arranged at sealed cap, described screw head can be ball head structure; Described sealed cap can be for floating type.
Such as Fig. 1, floating ball hair style stop valve can also comprise swivel nut 3, and described swivel nut 3 is connected with described screw rod 2, and swivel nut 3 is arranged on the outside of housing 1; And stop valve also comprises seal ring 4, and described seal ring is arranged at the described housing part that keeps to the side; Described swivel nut and described screw rod joint also are provided with O type cushion rubber 5, reach good sealing effect
A kind of realization example is: swivel nut can rotate, and then drives the motion of screw rod before and after axially having; That ball head structure by screw rod promotes it and the sealing surface applying of housing in the process that sealed cap advances; And be to move by baffle belt motive sealing cap when opening.
Screw rod only transmits axial force to sealed cap, thus sealed cap with can automatically adjust centering after housing horn mouth sealing surface contacts, be conducive to the applying of sealing surface, improved the sealability between housing and the sealed cap; In valve open, closing process; screw rod contacts with baffle plate; intermal force by baffle plate drives the sealed cap motion; because baffle plate passes to the power of sealed cap only for substantially horizontal; non-moment transmits; therefore open, sealed cap does not rotate in the closing process, has reduced the friction between housing and the sealed cap, is conducive to protect sealing surface.
The preferred embodiment of the present invention just is used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and only is described embodiment.Obviously, according to the content of this specification, can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to explain better principle of the present invention and practical application, thereby the technical field technician can utilize the present invention well under making.The present invention only is subjected to the restriction of claims and four corner and equivalent.
Claims (8)
1. floating ball hair style stop valve, comprise housing, it is characterized in that, also comprise screw rod and sealed cap, establish containing space in this housing, screw rod and sealed cap can be arranged in this containing space, and, on the dense sealing cap groove can be set, the screw head of screw rod just can be contained in this groove, described screw rod and described sealed cap are flexibly connected, and described screw rod transmits axial force to described sealed cap.
2. floating ball hair style stop valve according to claim 1 is characterized in that, comprises that also baffle plate, baffle plate are arranged on the both sides of the groove on the described sealed cap, and described sealed cap is flexibly connected by described baffle plate and described screw rod.
3. floating ball hair style stop valve according to claim 1 is characterized in that, described screw rod is ball head structure.
4. floating ball hair style stop valve according to claim 1 is characterized in that, described sealed cap is floating type.
5. floating ball hair style stop valve according to claim 1 is characterized in that, also comprises swivel nut, and described swivel nut is connected with described screw rod, and, swivel nut be arranged on housing containing space the mouth on.
6. floating ball hair style stop valve according to claim 1 is characterized in that, also comprises seal ring, and described seal ring is arranged at the described housing part that keeps to the side.
7. floating ball hair style stop valve according to claim 5 is characterized in that, described swivel nut and described screw rod joint also are provided with O type cushion rubber.
8. want 1 described floating ball hair style stop valve according to right, it is characterized in that the containing space on the housing is bell mouth shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104629988A CN102966748A (en) | 2012-11-16 | 2012-11-16 | Floating bulb type cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104629988A CN102966748A (en) | 2012-11-16 | 2012-11-16 | Floating bulb type cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102966748A true CN102966748A (en) | 2013-03-13 |
Family
ID=47797088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104629988A Pending CN102966748A (en) | 2012-11-16 | 2012-11-16 | Floating bulb type cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102966748A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676095A (en) * | 2015-02-15 | 2015-06-03 | 宁波金欧五金制品有限公司 | Normally closed valve with valve rod sealing end connected by ball head |
| CN104676014A (en) * | 2015-02-15 | 2015-06-03 | 宁波金欧五金制品有限公司 | Normally open valve employing ball head connection for sealing end of valve rod |
| CN107461507A (en) * | 2016-12-30 | 2017-12-12 | 郴州万墨环保科技有限公司 | A kind of self compensation vacuum valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0198300A2 (en) * | 1985-04-13 | 1986-10-22 | KSB Aktiengesellschaft | Shut-off valve with soft sealing valve cone |
| JPH09287669A (en) * | 1996-04-23 | 1997-11-04 | Toshiba Corp | Valve device |
| CN2385165Y (en) * | 1999-06-04 | 2000-06-28 | 戴学祥 | Semi-globe sealing stop valve |
| CN2401739Y (en) * | 1999-10-29 | 2000-10-18 | 宁波埃美柯铜阀门有限公司 | Stop valve |
-
2012
- 2012-11-16 CN CN2012104629988A patent/CN102966748A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0198300A2 (en) * | 1985-04-13 | 1986-10-22 | KSB Aktiengesellschaft | Shut-off valve with soft sealing valve cone |
| JPH09287669A (en) * | 1996-04-23 | 1997-11-04 | Toshiba Corp | Valve device |
| CN2385165Y (en) * | 1999-06-04 | 2000-06-28 | 戴学祥 | Semi-globe sealing stop valve |
| CN2401739Y (en) * | 1999-10-29 | 2000-10-18 | 宁波埃美柯铜阀门有限公司 | Stop valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676095A (en) * | 2015-02-15 | 2015-06-03 | 宁波金欧五金制品有限公司 | Normally closed valve with valve rod sealing end connected by ball head |
| CN104676014A (en) * | 2015-02-15 | 2015-06-03 | 宁波金欧五金制品有限公司 | Normally open valve employing ball head connection for sealing end of valve rod |
| CN104676014B (en) * | 2015-02-15 | 2018-04-27 | 宁波金欧五金制品有限公司 | A kind of valve stem seal end uses the normally open valve of bulb connection |
| CN107461507A (en) * | 2016-12-30 | 2017-12-12 | 郴州万墨环保科技有限公司 | A kind of self compensation vacuum valve |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130313 |