CN202100819U - Internal-pressure self-sealing isolating transmission gear - Google Patents
Internal-pressure self-sealing isolating transmission gear Download PDFInfo
- Publication number
- CN202100819U CN202100819U CN2011201928226U CN201120192822U CN202100819U CN 202100819 U CN202100819 U CN 202100819U CN 2011201928226 U CN2011201928226 U CN 2011201928226U CN 201120192822 U CN201120192822 U CN 201120192822U CN 202100819 U CN202100819 U CN 202100819U
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- ring
- internal
- sealing
- pressure self
- isolating
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Abstract
The utility model discloses an internal-pressure self-sealing isolating transmission gear which comprises a valve cap, a valve rod, an internal-pressure self-sealing ring and a floating isolating ring, wherein the valve rod is arranged in the valve cap, the floating isolating ring is arranged in the valve cap and sleeved on the valve rod, the floating isolating ring is hermetically matched with both the valve cap and the valve rod, and an axial limiting table is formed in the valve cap; the internal-pressure self-sealing ring is sleeved on the valve rod and positioned between the floating isolating ring and the axial limiting table, and a through hole is formed on the internal-pressure self-sealing ring and used for communicating one side of the internal-pressure self-sealing ring with other side; and corresponding side sealing faces are arranged between the internal-pressure self-sealing ring and the floating isolating ring. The anti-leakage performance of the isolating transmission gear can be further improved, and the safety is higher.
Description
Technical field
The utility model relates to a kind of internal-pressure self-sealing and isolates transmission device.
Background technique
In power transmission process, especially under nuclear industry, the hypertoxic environment, should realize the mechanokinetic transmission, avoid leaking of harmful matter again, need to use sealed gearing device.
Existing sealed gearing device such as Chinese patent 200920238041.9 disclose a kind of isolating seal transmission device; This isolating seal transmission device is in the mechanokinetic transmittance process; Can play the effective isolation seal action, in this structure, what play the isolating seal effect is isolating seal transmission shield; Still might cause leakage in the course of the work, its Security still remains to be improved.
Summary of the invention
The purpose of the utility model is to overcome the defective of existing technology, provides a kind of internal-pressure self-sealing to isolate transmission device, and the utility model can further improve the anti-leak performance of isolating transmission device, and Security is higher.
Its technological scheme is following.
A kind of internal-pressure self-sealing is isolated transmission device; Comprise valve gap, valve rod, internal-pressure self-sealing ring and the isolating ring that floats, valve rod is located in the valve gap, and unsteady isolating ring is located in the valve gap and is enclosed within on the valve rod; The isolating ring that floats cooperates with valve gap, valve stem seal simultaneously, is formed with the axial limiting platform in the valve gap; The internal-pressure self-sealing ring set is on valve rod, and the internal-pressure self-sealing ring is provided with through hole its both sides are communicated between unsteady isolating ring and axial limiting platform on the internal-pressure self-sealing ring; Be provided with corresponding side sealing face between internal-pressure self-sealing ring and the unsteady isolating ring.
Describe in the face of the further technological scheme of the utility model down.
Said internal-pressure self-sealing ring is equipped with and the corresponding inclined-plane that cooperates of said unsteady isolating ring with respect to interior ring, the outer shroud of said unsteady isolating ring one side, and said side sealing face cooperates the inclined-plane for this.
Said cooperation inclined-plane becomes 30 degree to 60 degree angles with respect to the axis of said valve rod.
The cross-section area of said through hole is 3% to 10% of a said internal-pressure self-sealing ring cross-section area.
Said unsteady isolating ring comprises first bezel ring,, second bezel ring,, adjusting screw and inner seal ring, exterior seal ring; First bezel ring, is relative with second bezel ring; First bezel ring, is connected through adjusting screw and is provided with betwixt with second bezel ring, regulates the gap; Form interior seal groove and the external sealed groove that has the inclined-plane between first bezel ring, and second bezel ring,, inner seal ring, exterior seal ring place respectively in interior seal groove, the external sealed groove.
The outer wall that said internal-pressure self-sealing ring is corresponding with respect to said valve gap, the inwall that said internal-pressure self-sealing ring is corresponding with respect to said valve rod form external sealed face, inner sealing surface respectively.
The outer wall that said internal-pressure self-sealing ring is corresponding with respect to said valve gap, the inwall that said internal-pressure self-sealing ring is corresponding with respect to said valve rod also are respectively equipped with outer conical surface, internal conical surface; Said external sealed face, inner sealing surface are cylindrical, and outer conical surface is spent to the slanted angle of 7 degree with respect to all forming 1 between the said inner sealing surface with respect to said external sealed face, internal conical surface.
Advantage or principle in the face of the utility model describes down:
1, in normal operation; The pressure of unsteady isolating ring both sides is in metastable state, and in the valve rod course of action, unsteady isolating ring can move up and down and the pressure balance of the isolating ring both sides that keep floating; At this moment; The internal-pressure self-sealing ring is provided with through hole, and the pressure of its both sides also keeps relative equilibrium, and the internal-pressure self-sealing ring does not produce effect; If the flexible sealing cover produces and to break and during decompression; Will float isolating ring and internal-pressure self-sealing ring of pipeline pressure is pressed together; And through corresponding side sealing face seal between internal-pressure self-sealing ring and the unsteady isolating ring, the pressure reduction of its both sides is big more, and sealing effect rises; Effectively avoid harmful matter further to leak, improved internal-pressure self-sealing and isolated the Security of transmission device;
2, unsteady isolating ring comprises first bezel ring,, second bezel ring; Regulate the distance between first bezel ring,, second bezel ring, through adjusting screw; Be the width of interior seal groove of can regulate and external sealed groove, owing to also have the inclined-plane, the change width of interior seal groove and external sealed groove on interior seal groove and the external sealed groove; Be that can regulate inner seal ring, exterior seal ring move radial direction, and then regulate the degree of tightness that the isolating ring that floats cooperates with valve gap, valve rod;
3, the external sealed face of internal-pressure self-sealing ring, inner sealing surface cooperate with valve gap, valve rod respectively; Outer conical surface is spent to the slanted angle of 7 degree with respect to all forming 1 between the said inner sealing surface with respect to said external sealed face, internal conical surface; Reduce the area of contact of internal-pressure self-sealing ring and valve gap, valve rod, improve its sealing effect.
Description of drawings
Fig. 1 is the structural drawing that the said internal-pressure self-sealing of the utility model embodiment is isolated transmission device;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the structural drawing of unsteady isolating ring;
Fig. 4 is the structural drawing of internal-pressure self-sealing ring;
Description of reference numerals:
1, valve gap, 2, valve rod, 3, the isolating ring that floats, 4, limit dais, 5, the internal-pressure self-sealing ring; 6, through hole, 7, position limit pin, 8, first bezel ring,, 9, second bezel ring; 10, inner seal ring, 11, exterior seal ring, 12, adjusting screw, 13, regulate the gap; 14, flexible sealing cover, 15, side sealing face, 16, inner sealing surface, 17, the external sealed face.
Embodiment
Embodiment in the face of the utility model is elaborated down.
Extremely shown in Figure 4 like Fig. 1; A kind of internal-pressure self-sealing is isolated transmission device; Comprise valve gap 1, valve rod 2, internal-pressure self-sealing ring 5 and the isolating ring 3 that floats, valve rod 2 is located in the valve gap 1, and the isolating ring 3 that floats is located in the valve gap 1 and is enclosed within on the valve rod 2; The isolating ring 3 that floats is sealed and matched with valve gap 1, valve rod 2 simultaneously, is formed with axial limiting platform 4 in the valve gap 1; Internal-pressure self-sealing ring 5 is enclosed within on the valve rod 2, and internal-pressure self-sealing ring 5 is provided with through hole 6 its both sides are communicated between unsteady isolating ring 3 and axial limiting platform 4 on internal-pressure self-sealing ring 5; Be provided with corresponding side sealing face between internal-pressure self-sealing ring 5 and the unsteady isolating ring 3.
Wherein, on limit dais 4, be provided with position limit pin 7, internal-pressure self-sealing ring 5 is spacing through this position limit pin 7; Said internal-pressure self-sealing ring 5 is equipped with and the said unsteady isolating ring 3 corresponding inclined-planes that cooperate with respect to interior ring, the outer shroud of said unsteady isolating ring 3 one sides, and said side sealing face cooperates the inclined-plane for this.Said cooperation inclined-plane becomes 30 degree to 60 degree angles with respect to the axis of said valve rod 2.The cross-section area of said through hole 6 is 3% to 10% of said internal-pressure self-sealing ring 5 cross-section areas.
Said unsteady isolating ring 3 comprises first bezel ring, 8, second bezel ring, 9, adjusting screw 12 and inner seal ring 10, exterior seal ring 11; First bezel ring, 8 is relative with second bezel ring, 9; First bezel ring, 8 is connected through adjusting screw 12 and is provided with betwixt with second bezel ring, 9 regulates gap 13; Form interior seal groove and the external sealed groove that has the inclined-plane between first bezel ring, 8 and second bezel ring, 9, inner seal ring 10, exterior seal ring 11 place respectively in interior seal groove, the external sealed groove.
Internal-pressure self-sealing ring 5 forms external sealed face 17, inner sealing surface 16 with respect to valve gap 1 corresponding outer wall, internal-pressure self-sealing ring 5 respectively with respect to valve rod 2 corresponding inwalls.Internal-pressure self-sealing ring 5 also is respectively equipped with outer conical surface, internal conical surface with respect to valve gap 1 corresponding outer wall, internal-pressure self-sealing ring 5 with respect to valve rod 2 corresponding inwalls; External sealed face 17, inner sealing surface 16 are cylindrical, outer conical surface with respect to external sealed face 17, internal conical surface with respect to the slanted angle that all forms 4 degree between the inner sealing surface 16.
Present embodiment has following advantage:
1, in normal operation; The pressure of unsteady isolating ring 3 both sides is in metastable state, and in valve rod 2 course of action, the isolating ring 3 that floats can move up and down and the pressure balance of isolating ring 3 both sides that keep floating; At this moment; Internal-pressure self-sealing ring 5 is provided with through hole 6, and the pressure of its both sides also keeps relative equilibrium, and internal-pressure self-sealing ring 5 does not produce effect; If flexible sealing cover 14 produces and breaks and during decompression; Will float isolating ring 3 of pipeline pressure is pressed together with internal-pressure self-sealing ring 5; And through corresponding side sealing face seal between internal-pressure self-sealing ring 5 and the unsteady isolating ring 3, the pressure reduction of its both sides is big more, and sealing effect rises; Effectively avoid harmful matter further to leak, improved internal-pressure self-sealing and isolated the Security of transmission device;
2, the isolating ring 3 that floats comprises first bezel ring, 8, second bezel ring, 9; Regulate the distance between first bezel ring, 8, second bezel ring, 9 through adjusting screw 12; Be the width of interior seal groove of can regulate and external sealed groove, owing to also have the inclined-plane, the change width of interior seal groove and external sealed groove on interior seal groove and the external sealed groove; Be that can regulate inner seal ring 10, exterior seal ring 11 move radial direction, and then regulate the degree of tightness that the isolating ring 3 that floats cooperates with valve gap 1, valve rod 2;
3, the external sealed face 17 of internal-pressure self-sealing ring 5, inner sealing surface 16 cooperate with valve gap 1, valve rod 2 respectively; Outer conical surface with respect to external sealed face 17, internal conical surface with respect to all forming slanted angle between the inner sealing surface 16; Reduce the area of contact of internal-pressure self-sealing ring 5 and valve gap 1, valve rod 2, improve its sealing effect.
More than be merely the specific embodiment of the utility model, do not limit the protection domain of the utility model with this; Do not violate any replacement and the improvement of being done on the basis of the utility model design, all belonging to the protection domain of the utility model.
Claims (7)
1. an internal-pressure self-sealing is isolated transmission device; It is characterized in that; Comprise valve gap, valve rod, internal-pressure self-sealing ring and the isolating ring that floats, valve rod is located in the valve gap, and unsteady isolating ring is located in the valve gap and is enclosed within on the valve rod; The isolating ring that floats cooperates with valve gap, valve stem seal simultaneously, is formed with the axial limiting platform in the valve gap; The internal-pressure self-sealing ring set is on valve rod, and the internal-pressure self-sealing ring is provided with through hole its both sides are communicated between unsteady isolating ring and axial limiting platform on the internal-pressure self-sealing ring; Be provided with corresponding side sealing face between internal-pressure self-sealing ring and the unsteady isolating ring.
2. internal-pressure self-sealing is isolated transmission device according to claim 1; It is characterized in that; Said internal-pressure self-sealing ring is equipped with and the corresponding inclined-plane that cooperates of said unsteady isolating ring with respect to interior ring, the outer shroud of said unsteady isolating ring one side, and said side sealing face cooperates the inclined-plane for this.
3. isolate transmission device like the said internal-pressure self-sealing of claim 2, it is characterized in that, said cooperation inclined-plane becomes 30 degree to 60 degree angles with respect to the axis of said valve rod.
4. isolate transmission device like each said internal-pressure self-sealing in the claim 1 to 3, it is characterized in that the cross-section area of said through hole is 3% to 10% of a said internal-pressure self-sealing ring cross-section area.
5. isolate transmission device like each said internal-pressure self-sealing in the claim 1 to 3; It is characterized in that; Said unsteady isolating ring comprises first bezel ring,, second bezel ring,, adjusting screw and inner seal ring, exterior seal ring; First bezel ring, is relative with second bezel ring; First bezel ring, is connected through adjusting screw and is provided with betwixt with second bezel ring, regulates the gap, forms interior seal groove and the external sealed groove that has the inclined-plane between first bezel ring, and second bezel ring,, and inner seal ring, exterior seal ring place respectively in interior seal groove, the external sealed groove.
6. isolate transmission device like each said internal-pressure self-sealing in the claim 1 to 3; It is characterized in that the outer wall that said internal-pressure self-sealing ring is corresponding with respect to said valve gap, the inwall that said internal-pressure self-sealing ring is corresponding with respect to said valve rod form external sealed face, inner sealing surface respectively.
7. isolate transmission device like the said internal-pressure self-sealing of claim 6; It is characterized in that; The outer wall that said internal-pressure self-sealing ring is corresponding with respect to said valve gap, the inwall that said internal-pressure self-sealing ring is corresponding with respect to said valve rod also are respectively equipped with outer conical surface, internal conical surface; Said external sealed face, inner sealing surface are cylindrical, and outer conical surface is spent to the slanted angle of 7 degree with respect to all forming 1 between the said inner sealing surface with respect to said external sealed face, internal conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201928226U CN202100819U (en) | 2011-06-09 | 2011-06-09 | Internal-pressure self-sealing isolating transmission gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201928226U CN202100819U (en) | 2011-06-09 | 2011-06-09 | Internal-pressure self-sealing isolating transmission gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100819U true CN202100819U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201928226U Expired - Lifetime CN202100819U (en) | 2011-06-09 | 2011-06-09 | Internal-pressure self-sealing isolating transmission gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252131A (en) * | 2011-06-09 | 2011-11-23 | 林德宽 | Internal pressure self-sealing isolation transmission device |
-
2011
- 2011-06-09 CN CN2011201928226U patent/CN202100819U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252131A (en) * | 2011-06-09 | 2011-11-23 | 林德宽 | Internal pressure self-sealing isolation transmission device |
| CN102252131B (en) * | 2011-06-09 | 2012-11-07 | 林德宽 | Internal pressure self-sealing isolation transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120104 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |