CN203604651U - Long-acting washing machine sealing ring - Google Patents
Long-acting washing machine sealing ring Download PDFInfo
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- CN203604651U CN203604651U CN201320552108.2U CN201320552108U CN203604651U CN 203604651 U CN203604651 U CN 203604651U CN 201320552108 U CN201320552108 U CN 201320552108U CN 203604651 U CN203604651 U CN 203604651U
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- lip
- seal
- sealing
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- seal lip
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Abstract
The utility model relates to a sealing member, and particularly to a long-acting washing machine sealing ring. The long-acting washing machine sealing ring comprises the components of: an outer sealing part which is matched with a mounting seat hole, a supporting ring, and an inner sealing part which is in interference fit with a dewatering shaft. The supporting ring is arranged between the outer sealing part and the inner sealing part and is connected with the outer sealing part and the inner sealing part. The inner sealing part comprises a first sealing lip, a second sealing lip and a third sealing lip. The second sealing lip is arranged between the first sealing lip and the third sealing lip, wherein the first sealing lip comprises a modified PTFE sheet. The long-acting washing machine sealing ring has the functions of: improving sealing stability of the first sealing lip, and ensuring a stable sealing effect in long-time use process.
Description
Technical field
The utility model relates to a kind of Sealing, especially a kind of long-acting washing machine seal ring.
Background technique
Laundry machine dehydration Simmer ring, for the sealing to washing machine internal scouring water, prevents that inner scouring water leakage from producing corrosion and infringement to parts such as motors.Dewatering shaft sealing ring is generally made up of outer seal portion, support ring and interior sealed department.Outer seal portion coordinates with fitting seat hole and realizes the installation of seal ring and the sealing to fitting seat hole; Support ring plays the effect that connects outer seal portion and interior sealed department; Interior sealed department coordinates the sealing realizing dehydrating shaft with dehydrating shaft, prevent that scouring water from producing and revealing in dehydrating shaft axial region position in the time of static and running.By the reliable installation of dewatering shaft sealing ring, just can realize the generally sealing to scouring water, prevent from revealing.Interior sealed department first seal lip directly contacts with scouring water and washing, plays primary seal effect, prevents that foreign matter and water from entering seal ring inside.If the sealing effect of first seal lip is bad, can continue second seal lip and three seals lip to cause erosion, when serious, even leak out from second seal lip and three seals lip, bearing is caused to corrosion, cause washing machine operation irregularity, therefore the sealing effect of first seal lip and stability are most important to the overall sealing performance of seal ring.
Conventionally first seal lip is by quality of rubber materials sulfidization molding, and structural type is conical horn mouth shape, and section thickness is between 0.5-0.8mm.When running, this lip and dehydrating shaft interference fit, play seal action.In order to improve the lubrication state of lip, reduce the frictional loss of seal lip, between first seal lip and second seal lip, be filled with lithium grease.But along with the consumption of lubricating grease in using process, seal lip can be worn and torn, cause sealability to reduce, even, because wearing and tearing too seriously cause strength decreased, there is breakage, cause seal failure.
Model utility content
The purpose of this utility model has been to propose a kind of above-mentioned defect existing in prior art that overcomes, a kind of long-acting washing machine seal ring has been proposed, strengthen the sealing stability of first seal lip, guaranteed that it can have stable sealing effect in long-term using process.
The utility model is to adopt following technological scheme to realize: a kind of long-acting washing machine seal ring, comprise the outer seal portion that coordinates with fitting seat hole, support ring and the interior sealed department with dehydrating shaft interference fit, support ring is arranged between outer seal portion and interior sealed department, connect outer seal portion and interior sealed department, described interior sealed department comprises first seal lip, second seal lip and three seals lip, second seal lip is between first seal lip and three seals lip, wherein, first seal lip comprises modified ptfe thin slice.
In the utility model, described first seal lip can comprise that rubber body contacts and be the modified ptfe thin slice of interference fit with dehydrating shaft, modified ptfe thin slice is positioned at the inner side of rubber body, and bonding with rubber body, the tapered bell mouth shape of first seal lip, the thickness of modified ptfe thin slice is 0.15-0.3mm.
Described first seal lip also can be by forming and be with the modified ptfe annular flake of sealing to make with dehydrating shaft, and sheet thickness is 0.7-1mm.
Si road seal lip can be set between described first seal lip and second seal lip, and the annular outboard of Si road seal lip is provided with spring, provides enclasping force by spring Wei tetra-road seal lips.
The sectional shape of described support ring can be
shape or U-shaped.
The annular outboard of described three seals lip is provided with preloading spring, makes to be interference fit between three seals lip and dehydrating shaft by the elastic force in preloading spring
The beneficial effects of the utility model are:
(1) because modified ptfe intensity will, higher than quality of rubber materials, therefore can provide stronger resistivity to the destruction of foreign matter in washing process;
(2), because modified ptfe has extremely low friction factor, while use for a long time, can wear and tear hardly;
(3) because modified ptfe has self-lubricating property, the lithium grease of can annotating when use;
(4) in seal ring using process, between modified ptfe and dehydrating shaft, form band sealing, improved sealing effect.In sum, by modified ptfe is used in first seal lip, due to low friction, self-lubricating property and the sealing of employing band of modified ptfe, first seal lip can not occur compared with galling, guarantees that seal ring can have stable sealing effect in long-term use.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that is fitted to each other of existing washing machine seal ring;
Fig. 2 is the assembly structure schematic diagram of long-acting washing machine seal ring in embodiment 1;
Fig. 3 is the structural representation of long-acting washing machine seal ring in embodiment 2;
Fig. 4 is the assembly structure schematic diagram of long-acting washing machine seal ring in embodiment 3;
Fig. 5 is the structural representation of long-acting washing machine seal ring in embodiment 4.
In figure: 1 outer seal portion; 2 support rings; 3 interior sealed departments; 31 first seal lips; 311 modified ptfe thin slices; 32 second seal lips; 33 three seals lips; 32 ' Si road seal lip.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figure 2, this long-acting washing machine seal ring comprises outer seal portion 1, support ring 2 and interior sealed department 3, outer seal portion 1 coordinates with fitting seat hole and realizes the installation of seal ring and the sealing to fitting seat hole, support ring 2 is arranged between outer seal portion 1 and interior sealed department 3, play the effect that connects outer seal portion 1 and interior sealed department 3, interior sealed department 3 coordinates the sealing realizing dehydrating shaft with dehydrating shaft, prevent that scouring water from producing and revealing in dehydrating shaft axial region position in the time of static and running.
Described interior sealed department 3 comprises three seals lip, respectively first seal lip 31, second seal lip 32 and three seals lip 33, first seal lip 31 plays primary seal effect, second seal lip 32 is between first seal lip 31 and three seals lip 33, the annular outboard of three seals lip 33 is provided with preloading spring, makes to be interference fit between three seals lip 33 and dehydrating shaft by the elastic force in preloading spring.
In first seal lip, 31 places are provided with modified ptfe thin slice 311, and the thickness of modified ptfe thin slice 311 is 0.15-0.3mm, and bonding integral by the rubber part of vulcanization process and first seal lip 31, the tapered bell mouth shape of first seal lip.In order to guarantee the sharp-pointed of seal lip, this lip is by special incising machine finishing moulding.After seal ring is installed, the modified ptfe thin slice 311 at first seal lip 31 places contacts with dehydrating shaft, and forms interference fit, thereby realizes sealing.Because modified ptfe has extremely low friction factor, while use for a long time, can wear and tear hardly; And because modified ptfe has self-lubricating property, the lithium grease of can annotating when use.Therefore, adopt in seal ring first seal lip 31 in long-term use of first seal lip 31 places' increase modified ptfe thin slices 311 and can not occur compared with galling, the long-term sealing stability using of guarantee period.
As different from Example 1: as shown in Figure 3, described support ring 2 takes the shape of the letter U, and can improve the integral, flexible of seal ring by U-shaped support ring is set, and and running shaft between servo-actuated property.First seal lip 31 plays main seal action, with being provided with Si road seal lip 32 ' between first seal lip 31 and second seal lip 32, the annular outboard of Si road seal lip 32 ' is provided with spring, spring Wei tetra-road seal lips 32 ' provide enclasping force, thereby have strengthened sealing effect.Narrow space between first seal lip 31 Yu tetra-road seal lips 32 ', the lithium grease of cannot annotating, therefore the thin slice 311 of modified ptfe material is set at first seal lip 31 places, utilize low friction and the self-lubricating property of PTFE, reduce the wearing and tearing of lip, improved its sealing stability in long-term using process.Sealing circle is mainly used in roller washing machine clutch position.
The other the same as in Example 1.
Embodiment 3
As different from Example 1: as shown in Figure 4, first seal lip 31 is made up of the higher modified ptfe annular flake of intensity, sheet thickness is 0.7-1mm, and forms one by sulfuration and seal ring, and first seal lip 31 and dehydrating shaft form the band sealing of certain width.In washing process, often there is a large amount of metal objects or sharp-pointed object, they can cause harmful effect to first seal lip.Because quality of rubber materials intensity is lower, being easy to, because the injury of foreign matter causes breakage, cause seal failure, and modified ptfe intensity will, higher than quality of rubber materials, therefore can provide stronger resistivity to the destruction of foreign matter in washing process.In order to improve the resistivity to these foreign matters, due to low friction, self-lubricating property and the sealing of employing band of modified ptfe, guaranteed again its long-term sealing effect using simultaneously.
The other the same as in Example 1.
Embodiment 4
As different from Example 2: as shown in Figure 5, cancelled tetra-road seal lips 32 ' between first seal lip 31 and second seal lip 32, simplified oil seal structure.Meanwhile, first seal lip 31 is made up of the higher modified ptfe annular flake of intensity, and sheet thickness is 0.7-1mm, and forms one by sulfuration and seal ring; First seal lip 31 seals with the band that dehydrating shaft forms certain width.Because modified ptfe intensity will, higher than quality of rubber materials, therefore can provide stronger resistivity to the destruction of foreign matter in washing process; Due to low friction, self-lubricating property and the sealing of employing band of modified ptfe, guaranteed again its long-term sealing effect using simultaneously.Owing to having simplified oil seal structure, also reduced manufacture cost simultaneously.Sealing circle is for roller washing machine clutch position.
The other the same as in Example 2.
Claims (6)
1. a long-acting washing machine seal ring, comprise the outer seal portion (1) coordinating with fitting seat hole, support ring (2) and with the interior sealed department (3) of dehydrating shaft interference fit, support ring (2) is arranged between outer seal portion (1) and interior sealed department (3), connect outer seal portion (1) and interior sealed department (3), described interior sealed department (3) comprises first seal lip (31), second seal lip (32) and three seals lip (33), second seal lip (32) is positioned between first seal lip (31) and three seals lip (33), it is characterized in that: described first seal lip (31) comprises modified ptfe thin slice.
2. long-acting washing machine seal ring according to claim 1, it is characterized in that: described first seal lip (31) comprises that rubber body contacts and be the modified ptfe thin slice (311) of interference fit with dehydrating shaft, modified ptfe thin slice (311) is positioned at the inner side of rubber body, and bonding with rubber body, the tapered bell mouth shape of first seal lip (31), the thickness of modified ptfe thin slice (311) is 0.15-0.3mm.
3. long-acting washing machine seal ring according to claim 1, is characterized in that: described first seal lip (31) is by forming and be with the modified ptfe annular flake of sealing to make with dehydrating shaft, and sheet thickness is 0.7-1mm.
4. long-acting washing machine seal ring according to claim 2, it is characterized in that: between described first seal lip (31) and second seal lip (32), be provided with Si road seal lip (32 '), the annular outboard of Si road seal lip (32 ') is provided with spring.
5. according to the long-acting washing machine seal ring described in claim 2,3 or 4, it is characterized in that: the sectional shape of described support ring (2) is L shaped or U-shaped.
6. long-acting washing machine seal ring according to claim 1, is characterized in that: the annular outboard of described three seals lip (33) is provided with preloading spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320552108.2U CN203604651U (en) | 2013-09-05 | 2013-09-05 | Long-acting washing machine sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320552108.2U CN203604651U (en) | 2013-09-05 | 2013-09-05 | Long-acting washing machine sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604651U true CN203604651U (en) | 2014-05-21 |
Family
ID=50717325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320552108.2U Expired - Fee Related CN203604651U (en) | 2013-09-05 | 2013-09-05 | Long-acting washing machine sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410976A (en) * | 2013-09-05 | 2013-11-27 | 青岛开世密封工业有限公司 | Durable washing machine seal ring |
-
2013
- 2013-09-05 CN CN201320552108.2U patent/CN203604651U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410976A (en) * | 2013-09-05 | 2013-11-27 | 青岛开世密封工业有限公司 | Durable washing machine seal ring |
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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 |
Granted publication date: 20140521 Termination date: 20140905 |
|
| EXPY | Termination of patent right or utility model |