CN203892555U - Lip-shaped sealing ring - Google Patents
Lip-shaped sealing ring Download PDFInfo
- Publication number
- CN203892555U CN203892555U CN201420083048.9U CN201420083048U CN203892555U CN 203892555 U CN203892555 U CN 203892555U CN 201420083048 U CN201420083048 U CN 201420083048U CN 203892555 U CN203892555 U CN 203892555U
- Authority
- CN
- China
- Prior art keywords
- lip
- groove
- helical spring
- elastic compensating
- compensating element
- 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 - Fee Related
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a lip-shaped sealing ring, which comprises a lip-shaped ring body, wherein a first groove and a second groove are formed in the lip-shaped ring body; a first elastic compensation component is arranged in the first groove; a second elastic compensation component is arranged in the second groove. The lip-shaped sealing ring has better sealing effects, and is used for a deep groove.
Description
Technical field
The utility model relates to the technical field of the use Sealings such as machinery, oil and chemical plant installations, particularly, and particularly a kind of lip-type packing.
Background technique
Seal ring is widely used in all trades and professions as a kind of conventional machinery part, mainly plays anti-liquid, the effect of gas leakage prevention.Along with seal ring use extensively, also it has been proposed to more harsh conditions.
In prior art, most of seal rings are realized sealing function by setting-in spring, thereby the seal ring overwhelming majority who produces is sealed by elastomeric body, and sealing force is all mainly to be provided by system itself and seal ring lip body self elasticity.Therefore, under the environment of low pressure, the pressure that sealing system is brought diminishes, and mainly self provides sealing force by lip body, aging along with wearing and tearing and material, and sealability can not ensure.
And, in the time of seal deep groove groove, generally adopting common single spring groove sealing, and then cause sealing lip wall blocked up, spring weakens lips elastic compensating ability, and sealing effect is poor.
For in prior art for the poor problem of lip-type packing sealing effect of dark shape groove, effective solution is not yet proposed at present.
Summary of the invention
Main purpose of the present utility model is to provide a kind of lip-type packing, to solve the poor problem of lip-type packing sealing effect for dark shape groove in prior art.
Comprise lip circle body according to lip-type packing of the present utility model, on lip circle body, be provided with the first groove and the second groove, the first elastic compensating element is installed in the first groove, the second elastic compensating element is installed in the second groove.
Further, the first groove and the second groove are annular groove, and the first elastic compensating element and the second elastic compensating element are circular helical spring.
Further, helical spring by the coiling of bandlet type metal after head and the tail be connected to annulus and moulding.
Further, the opening of annular groove is less than helical spring spring and cuts footpath.
Further, helical spring is stainless steel helical spring or alloy helical spring.
Further, lip circle body is made up of high molecular polymer.
Pass through the utility model, two grooves are set on the lip circle body of lip-type packing, elastic compensating element is installed respectively in each groove, the setting of two grooves can reduce the thickness of sealing lip wall on the one hand, the setting of two elastic compensating elements can strengthen elastic compensating ability on the other hand, thereby make lip circle body when for dark shape groove, sealing effect is better.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other objects, features and advantages of the present utility model can be become apparent, below especially exemplified by embodiment of the present utility model.
Brief description of the drawings
By reading below detailed description of the preferred embodiment, various other advantage and benefits will become cheer and bright for those of ordinary skill in the art.Accompanying drawing is only for the object of preferred implementation is shown, and do not think restriction of the present utility model.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the vertical cut-away schematic view of lip-type packing of the present utility model;
Fig. 2 is the schematic diagram of the helical spring structure in the utility model;
Fig. 3 is the schematic diagram of the helical spring in the utility model while manufacturing ring-type.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.It is pointed out that in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
Fig. 1 is the vertical cut-away schematic view of lip-type packing of the present utility model, as shown in Figure 1, this lip-type packing comprises lip circle body and elastic compensating element, wherein, on lip circle body, on lip circle body, be provided with the first groove and the second groove, two grooves are annular groove in this embodiment, the first elastic compensating element 2 is installed in the first groove, the second elastic compensating element 3 is installed in the second groove, the first elastic compensating element 2 is circular helical spring, upper lip 1 adjacency with seal ring, the second elastic compensating element 3 is also lower lip 4 adjacency of circular helical spring and seal ring.
The lip-type packing that adopts this embodiment to provide, two grooves are set on the lip circle body of lip-type packing, elastic compensating element is installed respectively in each groove, the setting of two grooves can reduce the thickness of sealing lip wall on the one hand, the setting of two elastic compensating elements can strengthen elastic compensating ability on the other hand, can realize radical elasticity compensation and pretightening force stable, the simultaneously structure of lip circle body and can make seal ring use to the dark shape groove environment of high pressure in low pressure with helical spring mating reaction, thereby make the sealing effect of lip circle body better.
It should be noted that; in this embodiment, elastic compensating element all adopts circular helical spring, and groove relative set is annular groove; but the utility model is not limited thereto, adopt other forms of elastic compensating element and corresponding groove all within protection domain of the present utility model.
Further illustrate, the circular helical spring in embodiment illustrated in fig. 1 can be connected to annulus and moulding by head and the tail after the coiling of bandlet type metal, and compared with the helical spring of straight line type metal coiling, the stretch compensation of generation is larger, thereby plays better sealing effect.As shown in Figure 2, before connecting into ring, first by bandlet type metallic material around a center line C rotating bending, complete a pitch from single-lead starting point A coiling to single-lead terminating point B, go round and begin again, until the helical spring winding of predetermined length completes.As shown in Figure 3, after the helical spring head and the tail that coiling is completed connect, obtain circular helical spring.
Adopt the double-helix spring of this structural type to be placed in lip-type packing, provide a kind of having can realize radical elasticity compensation and the stable double-helix spring of the pretightening force seal ring as stretch compensation element.Meanwhile, this structure makes seal ring can be in dark shape groove no matter use under high pressure or low pressure condition and all have good sealing effect.
The opening of annular groove is less than helical spring spring and cuts footpath, after avoiding installing, spring comes off from Baltimore groove, when Sealing is fit into after groove, because being less than Sealing, groove depth cuts footpath, can produce compressive deformation, make spring produce radially deformation, the rebounding force that spring discharges makes inside and outside sealing lip tightly touch sealing surface, reaches sealing effect.
Helical spring can be stainless steel helical spring or alloy helical spring, and lip circle body can be made up of high molecular polymer, and cost is low, and sealing effect is better.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any people who is familiar with this technology is in the disclosed technical scope of the utility model; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (4)
1. a lip-type packing, is characterized in that, comprises lip circle body, is provided with the first groove and the second groove on described lip circle body, and the first elastic compensating element is installed in described the first groove, and the second elastic compensating element is installed in described the second groove;
Wherein, described the first groove and described the second groove are annular groove, and described the first elastic compensating element and described the second elastic compensating element are circular helical spring;
Described helical spring by the coiling of bandlet type metal after head and the tail be connected to annulus and moulding.
2. lip-type packing according to claim 1, is characterized in that, the opening of described annular groove is less than described helical spring spring and cuts footpath.
3. lip-type packing according to claim 2, is characterized in that, described helical spring is stainless steel helical spring or alloy helical spring.
4. lip-type packing according to claim 1, is characterized in that, described lip circle body is made up of high molecular polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083048.9U CN203892555U (en) | 2014-02-26 | 2014-02-26 | Lip-shaped sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083048.9U CN203892555U (en) | 2014-02-26 | 2014-02-26 | Lip-shaped sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892555U true CN203892555U (en) | 2014-10-22 |
Family
ID=51718963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083048.9U Expired - Fee Related CN203892555U (en) | 2014-02-26 | 2014-02-26 | Lip-shaped sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500748A (en) * | 2014-12-03 | 2015-04-08 | 上海康大橡胶制品制造有限公司 | O-shaped ring |
| CN110762146A (en) * | 2019-10-30 | 2020-02-07 | 北京裕泰行新材料科技有限公司 | H-shaped spring and production method thereof |
-
2014
- 2014-02-26 CN CN201420083048.9U patent/CN203892555U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500748A (en) * | 2014-12-03 | 2015-04-08 | 上海康大橡胶制品制造有限公司 | O-shaped ring |
| CN110762146A (en) * | 2019-10-30 | 2020-02-07 | 北京裕泰行新材料科技有限公司 | H-shaped spring and production method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170226 |