CN205780879U - Novel sealing gland - Google Patents
Novel sealing gland Download PDFInfo
- Publication number
- CN205780879U CN205780879U CN201620651666.8U CN201620651666U CN205780879U CN 205780879 U CN205780879 U CN 205780879U CN 201620651666 U CN201620651666 U CN 201620651666U CN 205780879 U CN205780879 U CN 205780879U
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- CN
- China
- Prior art keywords
- sealing
- lip
- sealing lip
- skeleton
- lower seal
- 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.)
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of novel sealing gland, including skeleton and the sealing ring body that is coated on skeleton；Described skeleton is the endless metal skeleton that cross section is L-shaped；Equidistantly integrally formed with upper sealing lip, middle sealing lip and the lower seal lip protruded on the external seal face of described sealing ring body；Between described upper sealing lip and described middle sealing lip, between described middle sealing lip and described lower seal lip, all constitute groove；Described sealing ring body is coated with abrasion resistant polyurethane coating with described upper sealing lip, middle sealing lip and lower seal lip outer surface.Sealing gland of the present utility model has 3 road sealing lips and abrasion resistant polyurethane coating, and multi-sealed effective, wearability is good, and service life is long.
Description
Technical field
This utility model relates to technical field of sealing technology, is specifically related to a kind of novel sealing gland.
Background technology
Sealing gland, is one important in pneumatic auxiliary, and it is roughly divided into movable sealing and static seal two kinds.Owing to movable sealing is used
Rotating, moving back and forth position, its sealing, wearability and service life are all had higher requirements by long-term friction of motion.See
Accompanying drawing 1 is the existing sealing gland for movable sealing, is made up of skeleton A and sealing ring B, on the outer circumference surface of sealing ring, is light
Sliding, form a sealing surface after it is compressed when in use, be used for sealing.And imitate to obtain reasonable sealing
Really, be typically desirable that with its excircle contact surface workpiece be made the most smooth, it may be said that be the most smooth more good, if rough meeting is led
Causing gas leakage, so the requirement for workpiece will be the highest, also increases cost.The most single sealing surface is through long-term motion
, easily there is abrasion in friction, causes sealing to reduce, lost efficacy, and service life is short, Shortcomings.
Utility model content
For above-mentioned deficiency, this utility model provides a kind of novel sealing gland, and its external seal face is provided with 3 road sealing lips, many
Resealing is effective, and wearability is good, and service life is long.
For achieving the above object, the technical solution of the utility model is:
Novel sealing gland, including skeleton and the sealing ring body that is coated on skeleton；Described skeleton is the ring that cross section is L-shaped
Shape metallic framework；On the external seal face of described sealing ring body equidistantly integrally formed with the upper sealing lip protruded, middle sealing lip and
Lower seal lip；Between described upper sealing lip and described middle sealing lip, all constitute between described middle sealing lip and described lower seal lip
Groove；Described sealing ring body is coated with abrasion resistant polyurethane with described upper sealing lip, middle sealing lip and lower seal lip outer surface
Coating.
Further, the longitudinal cross-section of described upper sealing lip, middle sealing lip and lower seal lip is all in circular arc.
The beneficial effects of the utility model are:
(1) the external seal face of sealing ring body of the present utility model is provided with 3 road sealing lips, forms 3 sealing surfaces, multiple
Good sealing effect, and after wherein one sealing lip lost efficacy, also have other 2 road sealing lip work.
(2) this utility model is coated with abrasion resistant polyurethane coating, can improve wearability and the oil resistivity of sealing lip, reduces
The wear rate of sealing lip and oil solve, and increase the service life.
(3) groove of the present utility model not only provided extruding wider space for sealing lip but also can store sealing medium, improved close
Feng Xing.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing sealing gland；
Fig. 2 is the sealing gland cross section structure schematic diagram that this is novel.
Detailed description of the invention
Embodiment:
As in figure 2 it is shown, novel sealing gland, including skeleton (1) and the sealing ring body (2) that is coated on skeleton (1)；Described bone
Frame (1) is the endless metal skeleton that cross section is L-shaped；The upper equidistant one in the external seal face (206) of described sealing ring body (2) becomes
Type has the upper sealing lip (201) of protrusion, middle sealing lip (202) and lower seal lip (203)；Described upper sealing lip (201) is with described
All constitute between middle sealing lip (202), between described middle sealing lip (202) and described lower seal lip (203) groove (204,
205)；Described sealing ring body (1) and described upper sealing lip (201), middle sealing lip (202) and lower seal lip (203) outer surface
It is coated with abrasion resistant polyurethane coating (not shown).
Further, the longitudinal cross-section of described upper sealing lip (201), middle sealing lip (202) and lower seal lip (203) all in
Circular arc.
The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and profit
Decorations are also considered as protection domain of the present utility model.
Claims (2)
- The most novel sealing gland, it is characterised in that: it includes skeleton and the sealing ring body being coated on skeleton；Described skeleton is cross section L-shaped endless metal skeleton；On the external seal face of described sealing ring body equidistantly integrally formed with the upper sealing lip protruded, Middle sealing lip and lower seal lip；Between described upper sealing lip and described middle sealing lip, described middle sealing lip and described lower seal lip Between all constitute groove；Described sealing ring body is coated with described upper sealing lip, middle sealing lip and lower seal lip outer surface Abrasion resistant polyurethane coating.
- Novel sealing gland the most according to claim 1, it is characterised in that: described upper sealing lip, middle sealing lip and lower seal lip Longitudinal cross-section all in circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620651666.8U CN205780879U (en) | 2016-06-28 | 2016-06-28 | Novel sealing gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620651666.8U CN205780879U (en) | 2016-06-28 | 2016-06-28 | Novel sealing gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780879U true CN205780879U (en) | 2016-12-07 |
Family
ID=58128156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620651666.8U Active CN205780879U (en) | 2016-06-28 | 2016-06-28 | Novel sealing gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780879U (en) |
-
2016
- 2016-06-28 CN CN201620651666.8U patent/CN205780879U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |