CN209370464U - A kind of piston rod high-performance pressure maintaining sealing ring - Google Patents
A kind of piston rod high-performance pressure maintaining sealing ring Download PDFInfo
- Publication number
- CN209370464U CN209370464U CN201920032919.7U CN201920032919U CN209370464U CN 209370464 U CN209370464 U CN 209370464U CN 201920032919 U CN201920032919 U CN 201920032919U CN 209370464 U CN209370464 U CN 209370464U
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- CN
- China
- Prior art keywords
- sealing lip
- sealing
- sealing ring
- ring
- ring body
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of piston rod high-performance pressure maintaining sealing rings, including sealing ring body and O-ring, sealing lip and lower sealing lip are connected separately on one lateral circle surface of sealing ring body, circular arc is equipped at the top of another lateral circle surface of sealing ring body and the side diameter of bottom, it is connected with the outer snap ring positioned at upper sealing lip one side on the outer diameter of sealing ring body, the interior snap ring positioned at lower sealing lip one side is connected on the internal diameter of sealing ring body.This piston rod high-performance pressure maintaining sealing ring, upper sealing lip and lower sealing lip with the setting being mutually aligned, do not generate interlaced pressure, allow cover piston rod and with institute's stress point on the sliding surface that connects of outside on two points, tightness is improved, O-ring is embedded in groove by gap, the tension force effect of the elastomer of O-ring, hydrostatic seal pressure can be reached and low-pressure performance is good, No leakage, wear-resistant, the service life is high, using the effect of sealing together, a large amount of cost and processing cost are saved.
Description
Technical field
The utility model relates to technical field of sealing technology, specially a kind of piston rod high-performance pressure maintaining sealing ring.
Background technique
The sealing structure of traditional rod uses U, UN type circle, is easy leakage, pressure maintaining in static pressure and environment under low pressure during being applicable in
Performance is poor, and not applicable in the high occasion of some pressure maintainings, wear-resisting performance is poor, and the service life is short.
Utility model content
The purpose of this utility model is to provide a kind of piston rod high-performance pressure maintaining sealing rings, close with that can reach static pressure
Envelope pressure and low-pressure performance are good, and No leakage is wear-resistant, and the service life is high, using the effect of sealing together, save a large amount of cost and add
Work at the advantages of, solve the problems of the prior art.
To achieve the above object, the utility model provides the following technical solutions: a kind of piston rod high-performance pressure maintaining sealing
It encloses, including sealing ring body and O-ring, is connected separately with sealing lip and lower sealing on one lateral circle surface of sealing ring body
It is equipped with circular arc at lip, the top of another lateral circle surface of sealing ring body and the side diameter of bottom, is connected on the outer diameter of sealing ring body
There is the outer snap ring positioned at upper sealing lip one side, be connected with the interior snap ring positioned at lower sealing lip one side on the internal diameter of sealing ring body,
Between the upper sealing lip and lower sealing lip composition have gap groove, O-ring by gap insertion groove in, and with it is close
Seal ontology close proximity.
Preferably, the section that the upper sealing lip and lower sealing lip and sealing ring body connect and compose is Y type, upper sealing lip
Interlock with lower sealing lip, upper sealing lip outermost protrudes the plane where lower sealing lip outermost layer.
Preferably, the upper sealing lip is identical with the shape of lower sealing lip and area is all the same, and upper sealing lip is close under
Sealing section at the lip outer diameter of lip is triangular form.
Preferably, the section of the outer snap ring and interior snap ring is triangular form, interior snap ring inclined-plane and sealing ring body institute structure
At angle and lower sealing lip it is identical as the angle that sealing ring body is constituted.
Preferably, the outer snap ring and interior snap ring are connected respectively close to upper sealing lip and lower sealing lip with sealing ring body
Port be located on same vertical plane.
Compared with prior art, the beneficial effects of the utility model are as follows:
This piston rod high-performance pressure maintaining sealing ring, upper sealing lip and lower sealing lip with the setting being mutually aligned, are not
Allow interlaced mode cooperated in external O-ring with covering, generate interlaced pressure, allow sealing lip and under
On the no longer same vertical plane of active force suffered by sealing lip, allow suffered by covering on piston rod and the sliding surface to connect with outside
Force improves tightness on two points, and outer snap ring and interior snap ring are mutually aligned, are not only promoted in aesthetics, simultaneously
Also can the connection between piston rod play the role of blocking, both improve the firmness of connection, O-ring is embedded in recessed by gap
In slot, and with sealing ring body close proximity, the tension force effect of the elastomer of O-ring, can reach hydrostatic seal pressure and low pressure
Can be good, No leakage is wear-resistant, and the service life is high, using the effect of sealing together, saves a large amount of cost and processing cost.
Detailed description of the invention
Fig. 1 is the sectional view of the utility model；
Fig. 2 is the global sections figure of the utility model.
In figure: 1, sealing ring body；11, upper sealing lip；12, lower sealing lip；13, circular arc；14, outer snap ring；15, interior card
Ring；2, O-ring；3, groove.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of piston rod high-performance pressure maintaining sealing ring referring to FIG. 1-2, including sealing ring body 1 and O-ring 2, sealing
Be connected separately with sealing lip 11 and lower sealing lip 12 on circle 1 one lateral circle surface of ontology, upper sealing lip 11 and lower sealing lip 12 with it is close
The section that seal ontology 1 connects and composes is Y type, and upper sealing lip 11 and lower sealing lip 12 interlock, upper 11 outermost of sealing lip protrusion
Plane where lower 12 outermost layer of sealing lip, upper sealing lip 11 and lower sealing lip 12 do not use the setting being mutually aligned, in order to allow
Interlaced mode and the O-ring 2 covered in outside cooperate, and generate interlaced pressure, allow sealing lip 11 under
On the no longer same vertical plane of active force suffered by sealing lip 12, allows and cover the institute on piston rod and the sliding surface to connect with outside
Stress point improves tightness on two points, and upper sealing lip 11 is identical with the shape of lower sealing lip 12 and area is all the same,
Section is triangular form at the lip outer diameter of upper sealing lip 11 and lower sealing lip 12, and triangular form conveys sliding surface and piston rod
Contact is remembered to concentrate on a point, and triangular form can achieve hydrostatic seal, the top of another lateral circle surface of sealing ring body 1 and
Circular arc 13 is equipped at the side diameter of bottom, the setting of circular arc 13 facilitates piston rod to be inserted into sealing ring, connects on the outer diameter of sealing ring body 1
It is connected to the outer snap ring 14 positioned at upper 11 one side of sealing lip, the top of outer snap ring 14 is flushed with the triangular form top of upper sealing lip 11,
It is connected with sliding surface, forms the structure firmly sealed, be connected on the internal diameter of sealing ring body 1 positioned at lower sealing lip 12 1
The section of other interior snap ring 15, outer snap ring 14 and interior snap ring 15 is triangular form, interior 15 inclined-plane of snap ring and 1 structure of sealing ring body
At angle and lower sealing lip 12 it is identical as the angle that sealing ring body 1 is constituted, wild card joined together when being connect with piston rod
Ring 14 and interior snap ring 15 are located at same respectively close to the port that upper sealing lip 11 and lower sealing lip 12 are connected with sealing ring body 1
On vertical plane, outer snap ring 14 and interior snap ring 15 are mutually aligned, and are not only promoted in aesthetics, while also can be between piston rod
Connection play the role of blocking, both improve the firmness of connection, the composition band between upper sealing lip 11 and lower sealing lip 12
Have a groove 3 of gap, O-ring 2 is embedded in groove 3 by gap, and with 1 close proximity of sealing ring body, the elasticity of O-ring 2
The tension force effect of body, can reach the pressure of hydrostatic seal 0 and low-pressure performance is good, and No leakage is wear-resistant, and the service life is high, utilize sealing together
Effect, save a large amount of cost and processing cost.
In summary: this piston rod high-performance pressure maintaining sealing ring, upper sealing lip 11 and lower sealing lip 12 be not with mutual
The setting of alignment generates interlaced pressure to allow interlaced mode cooperated in external O-ring 2 with covering,
Allow on the no longer same vertical plane of active force suffered by sealing lip 11 and lower sealing lip 12, allow cover piston rod and with outside
Institute's stress point improves tightness on two points on the sliding surface to connect, and outer snap ring 14 and interior snap ring 15 are mutually aligned, not only
Promoted in aesthetics, at the same also can the connection between piston rod play the role of blocking, both improve the secured of connection
Degree, O-ring 2 by gap be embedded in groove 3 in, and with 1 close proximity of sealing ring body, the elastomer of O-ring 2 tension work
With can reach the pressure of hydrostatic seal 0 and low-pressure performance is good, No leakage is wear-resistant, and the service life is high, utilizes the effect of sealing together, saves
A large amount of cost and processing cost.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of piston rod high-performance pressure maintaining sealing ring, including sealing ring body (1) and O-ring (2), it is characterised in that: institute
It states and is connected separately with sealing lip (11) and lower sealing lip (12) on (1) one lateral circle surface of sealing ring body, sealing ring body (1) is another
Circular arc (13) are equipped at the top of one lateral circle surface and the side diameter of bottom, are connected on the outer diameter of sealing ring body (1) positioned at upper
The outer snap ring (14) of sealing lip (11) one side is connected with positioned at lower sealing lip (12) one side on the internal diameter of sealing ring body (1)
Interior snap ring (15), the composition between the upper sealing lip (11) and lower sealing lip (12) have the groove (3) of gap, O-ring (2)
By gap insertion groove (3) in, and with sealing ring body (1) close proximity.
2. a kind of piston rod according to claim 1 high-performance pressure maintaining sealing ring, it is characterised in that: the upper sealing lip
(11) and the section that connects and composes of lower sealing lip (12) and sealing ring body (1) is Y type, upper sealing lip (11) and lower sealing lip
(12) staggeredly, upper sealing lip (11) outermost protrudes the plane where lower sealing lip (12) outermost layer.
3. a kind of piston rod according to claim 1 high-performance pressure maintaining sealing ring, it is characterised in that: the upper sealing lip
(11) identical with the shape of lower sealing lip (12) and area is all the same, outside the lip of upper sealing lip (11) and lower sealing lip (12)
Section is triangular form at diameter.
4. a kind of piston rod according to claim 1 high-performance pressure maintaining sealing ring, it is characterised in that: the outer snap ring
(14) and the section of interior snap ring (15) is triangular form, the angle that interior snap ring (15) inclined-plane and sealing ring body (1) are constituted with
Lower sealing lip (12) is identical as the angle that sealing ring body (1) is constituted.
5. a kind of piston rod according to claim 1 high-performance pressure maintaining sealing ring, it is characterised in that: the outer snap ring
(14) and the port that is connected respectively close to upper sealing lip (11) and lower sealing lip (12) with sealing ring body (1) of interior snap ring (15)
On same vertical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920032919.7U CN209370464U (en) | 2019-01-09 | 2019-01-09 | A kind of piston rod high-performance pressure maintaining sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920032919.7U CN209370464U (en) | 2019-01-09 | 2019-01-09 | A kind of piston rod high-performance pressure maintaining sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370464U true CN209370464U (en) | 2019-09-10 |
Family
ID=67825094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920032919.7U Expired - Fee Related CN209370464U (en) | 2019-01-09 | 2019-01-09 | A kind of piston rod high-performance pressure maintaining sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209370464U (en) |
-
2019
- 2019-01-09 CN CN201920032919.7U patent/CN209370464U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190910 Termination date: 20210109 |