CN204061858U - A kind of piston packing of anti-high pressure - Google Patents
A kind of piston packing of anti-high pressure Download PDFInfo
- Publication number
- CN204061858U CN204061858U CN201420444747.1U CN201420444747U CN204061858U CN 204061858 U CN204061858 U CN 204061858U CN 201420444747 U CN201420444747 U CN 201420444747U CN 204061858 U CN204061858 U CN 204061858U
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- ring
- elastic spring
- metal elastic
- shape rubber
- spring coil
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Abstract
The utility model discloses a kind of piston packing of anti-high pressure, comprise axle sleeve and main shaft, the inner side of axle sleeve is provided with the seal groove around main shaft, is provided with seal ring in seal groove, the metal elastic spring coil that seal ring comprises O shape rubber ring and circumferentially fixes in O shape rubber ring both sides.The piston packing of this anti-high pressure is by forming a seal ring entirety at O shape rubber ring both sides consolidated metal spring ring, thus can convenient quick mounting seal ring in sealing configuration, the metal elastic spring coil of both sides enhances the intensity of seal ring simultaneously, under high-pressure situations, metal elastic spring coil can choke trench gap, thus improve the anti-extrusion performance of product, the anti-extrusion performance of the high and hardness height metal elastic spring coil of intensity far away than rubber and collar material good, thus protect rubber, keep good sealing effect, effectively increase the working life of seal ring, this model utility is used for sealing configuration field.
Description
Technical field
The utility model relates to a kind of mechanical seal structure, particularly relates to a kind of piston packing of anti-high pressure.
Background technique
Along with the development of oil, natural gas extraction technology, exploit the material that uses and product also must be changed, to adapt to the demand of the condition that becomes increasingly complex and more long life.
Sealing configuration in the past, the Sealing used at sleeve pipe position, major part adopts O shape rubber ring to add the structure of back-up ring as Sealing, and this type of sealing mechanism mainly contains the problem of the following aspects:
1), O shape rubber ring and back-up ring need to install respectively, and which needs repeatedly to install, and back-up ring is difficult to make trade union college access arrangement, and meanwhile, O shape encloses easy distortion, installs inconvenient;
2), under high-pressure situations, O shape rubber ring and back-up ring are all easily extruded, and O shape rubber ring and back-up ring easily damage, thus reduce sealability, even destroy product, cause seal failure;
3), the working life of O shape rubber ring is usually shorter and sealing effect is not ideal.
Model utility content
For solving the problem, the utility model provides a kind of and installs piston packing that is more convenient and the anti-high pressure of seal ring longer service life.
The utility model solves the technological scheme that its technical problem adopts:
A piston packing for anti-high pressure, comprises axle sleeve and main shaft, and the inner side of axle sleeve is provided with the seal groove around main shaft, is provided with seal ring in seal groove, the metal elastic spring coil that seal ring comprises O shape rubber ring and circumferentially fixes in O shape rubber ring both sides.
Be further used as the improvement of technical solutions of the utility model, O shape rubber ring is along the circumferential direction provided with a circle arc convex between two metal elastic spring coils.
Be further used as the improvement of technical solutions of the utility model, metal elastic spring coil is embedded in O shape rubber ring, is filled up in metal elastic spring coil by the rubber of O shape rubber ring.
Be further used as the improvement of technical solutions of the utility model, metal elastic spring coil and O shape rubber ring are formed as a whole by sulfuration process.
The beneficial effects of the utility model: the piston packing of this anti-high pressure is by forming a seal ring entirety at O shape rubber ring both sides consolidated metal spring ring, thus can convenient quick mounting seal ring in sealing configuration, the metal elastic spring coil of both sides enhances the intensity of seal ring simultaneously, under high-pressure situations, metal elastic spring coil can choke trench gap, thus improve the anti-extrusion performance of product, the anti-extrusion performance of the high and hardness height metal elastic spring coil of intensity far away than rubber and collar material good, thus protect rubber, keep good sealing effect, effectively increase the working life of seal ring.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model embodiment overall structure schematic diagram;
Fig. 2 is O shape rubber ring structural representation in the utility model embodiment.
Embodiment
With reference to Fig. 1, Fig. 2, the utility model is a kind of piston packing of anti-high pressure, comprise axle sleeve 1 and main shaft 2, the inner side of axle sleeve 1 is provided with the seal groove around main shaft 2, seal ring 3 is provided with, the metal elastic spring coil 32 that seal ring 3 comprises O shape rubber ring 31 and circumferentially fixes in O shape rubber ring 31 both sides in seal groove.
The piston packing of this anti-high pressure is by forming a seal ring entirety at O shape rubber ring 31 both sides consolidated metal spring ring 32; thus can convenient quick mounting seal ring in sealing configuration; the metal elastic spring coil 32 of both sides enhances the intensity of seal ring simultaneously; under high-pressure situations; metal elastic spring coil 32 can choke trench gap; thus improve the anti-extrusion performance of product; the anti-extrusion performance of the high and hardness height metal elastic spring coil 32 of intensity far away than rubber and collar material good; thus protect rubber; keep good sealing effect, effectively increase the working life of seal ring.
In case of high pressures, metal elastic spring coil 32 plays the effect of control gap, prevents from extruding, and makes sealing configuration reach better sealing effect.
As the utility model preferred embodiment, O shape rubber ring 31 is along the circumferential direction provided with a circle arc convex 33 between two metal elastic spring coils 32.
Arc convex 33 be arranged so that the stress that O shape rubber ring 31 is extruded in sealing configuration concentrates on arc convex 33, and the arc convex 33 thickened also can bear larger effect of stress, has better effect to the working life extending O shape rubber ring 31.
Meanwhile, the setting of this arc convex 33, can make to be formed between sealing configuration with mounting groove better to contact, thus improve sealability.
As the utility model preferred embodiment, metal elastic spring coil 32 is embedded in O shape rubber ring 31, is filled up in metal elastic spring coil 32 by the rubber of O shape rubber ring 31.
As the utility model preferred embodiment, metal elastic spring coil 32 and O shape rubber ring 31 are formed as a whole by sulfuration process.
Metal elastic spring coil 32 is embedded in O shape rubber ring 31, and the gap in metal elastic spring coil 32, by the rubber filling of O shape rubber ring 31 body, better can ensure the intensity of O shape rubber ring 31, thus extends the working life of O shape rubber ring further.
After O shape rubber ring 31 loads seal groove, its cross section is born contact compressive stress and produces resiliently deformable.Certain initial contact force is produced to surface of contact, even without pressure medium or pressure very little, O shape rubber ring 31 by self resilient force and also can realize sealing.When after the medium being filled with pressure in cavity volume, under the effect of pressure medium, O shape rubber ring 31 is subjected to displacement, and shifts to low voltage side, and its resiliently deformable strengthens further simultaneously, fills and closing gap.
Now, the contact acting on sealing pair coupled face rises to, thus considerably increases sealing effect.As long as O shape rubber ring exists initial pressure, just can realize leak free positive confinement, be realized the sealing of sealing configuration by self-styled mode.
Certainly, the invention is not limited to above-mentioned mode of execution, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (4)
1. the piston packing of an anti-high pressure, it is characterized in that: comprise axle sleeve (1) and main shaft (2), the inner side of described axle sleeve (1) is provided with the seal groove around main shaft (2), seal ring (3) is provided with, the metal elastic spring coil (32) that described seal ring (3) comprises O shape rubber ring (31) and circumferentially fixes in O shape rubber ring (31) both sides in described seal groove.
2. the piston packing of anti-high pressure according to claim 1, is characterized in that: described O shape rubber ring (31) is along the circumferential direction provided with a circle arc convex (33) between two metal elastic spring coils (32).
3. the piston packing of anti-high pressure according to claim 1 and 2, is characterized in that: described metal elastic spring coil (32) is embedded in O shape rubber ring (31), is filled up in described metal elastic spring coil (32) by the rubber of O shape rubber ring (31).
4. the piston packing of anti-high pressure according to claim 1 and 2, is characterized in that: described metal elastic spring coil (32) and O shape rubber ring (31) are formed as a whole by sulfuration process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420444747.1U CN204061858U (en) | 2014-08-07 | 2014-08-07 | A kind of piston packing of anti-high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420444747.1U CN204061858U (en) | 2014-08-07 | 2014-08-07 | A kind of piston packing of anti-high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061858U true CN204061858U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420444747.1U Active CN204061858U (en) | 2014-08-07 | 2014-08-07 | A kind of piston packing of anti-high pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106234095A (en) * | 2016-08-03 | 2016-12-21 | 张春平 | Rain machine is made in water saving |
| CN107998474A (en) * | 2018-01-08 | 2018-05-08 | 叶忠伟 | A kind of gynecological washer of interior cycle operation |
-
2014
- 2014-08-07 CN CN201420444747.1U patent/CN204061858U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106234095A (en) * | 2016-08-03 | 2016-12-21 | 张春平 | Rain machine is made in water saving |
| CN107998474A (en) * | 2018-01-08 | 2018-05-08 | 叶忠伟 | A kind of gynecological washer of interior cycle operation |
| CN107998474B (en) * | 2018-01-08 | 2020-08-04 | 西安交通大学第二附属医院 | Gynecological irrigator with internal circulation working function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 1 Xinyu North Road, Ningxi Street, Zengcheng District, Guangzhou City, Guangdong Province, 510000 Patentee after: GUANGZHOU JST SEALS TECHNOLOGY Co.,Ltd. Address before: 510530 block B, 718 Kaichuang Avenue, Guangzhou hi tech Industrial Development Zone, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU JST SEALS TECHNOLOGY Co.,Ltd. |