Durable washing machine seal ring

A technology for washing machines and sealing rings, which is applied to engine sealing, mechanical equipment, engine components, etc., can solve the problems of reduced sealing performance, damage, and sealing failure, and achieve the effects of improving sealing effect, strong resistance, and stable sealing effect

Inactive Publication Date: 2013-11-27
QINGDAO TKS SEALING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the consumption of lubricating grease during use, the sealing lip will be worn, resulting in reduced sealing performance, and even due to excessive wear and tear, the strength will be reduced and damage will occur, resulting in seal failure

Method used

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  • Durable washing machine seal ring
  • Durable washing machine seal ring
  • Durable washing machine seal ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 2 As shown, the sealing ring of the long-lasting washing machine includes an outer sealing part 1, a support ring 2 and an inner sealing part 3. The outer sealing part 1 cooperates with the mounting seat hole to realize the installation of the sealing ring and the sealing of the mounting seat hole. The support ring 2 is set Between the outer sealing part 1 and the inner sealing part 3, it plays the role of connecting the outer sealing part 1 and the inner sealing part 3. The inner sealing part 3 cooperates with the dehydration shaft to realize the sealing of the dehydration shaft, preventing the washing water from being static and running. Leakage occurs at the shaft of the dehydration shaft.

[0025] The inner sealing part 3 includes three sealing lips, namely the first sealing lip 31, the second sealing lip 32 and the third sealing lip 33, the first sealing lip 31 acts as the main seal function, the second sealing lip 32 is located between the first s...

Embodiment 2

[0028] The difference with embodiment 1 is: as image 3 As shown, the support ring 2 is U-shaped, and the overall elasticity of the sealing ring and the followability with the rotating shaft can be improved by arranging the U-shaped support ring. The first sealing lip 31 plays the main sealing role, and there is a fourth sealing lip 32' between the first sealing lip 31 and the second sealing lip 32, and the fourth sealing lip 32' A spring is provided on the outer side of the annular ring, and the spring provides a holding force for the fourth sealing lip 32', thus enhancing the sealing effect. The space between the first sealing lip 31 and the fourth sealing lip 32' is narrow, and lithium-based grease cannot be filled, so a sheet 311 made of modified PTFE is installed at the first sealing lip 31, and the The low friction and self-lubricating properties reduce the wear of the lip and improve its sealing stability during long-term use. The sealing ring is mainly used in the cl...

Embodiment 3

[0031] The difference with embodiment 1 is: as Figure 4 As shown, the first sealing lip 31 is made of a high-strength modified PTFE annular sheet with a thickness of 0.7-1 mm, and is integrated with the sealing ring through vulcanization. The first sealing lip 31 is formed with the dehydration shaft A tape of a certain width is sealed. During the washing process, there are often a large number of metal objects or sharp objects, which can adversely affect the first sealing lip. Due to the low strength of the rubber material, it is easy to be damaged by foreign matter, resulting in seal failure, while the strength of modified PTFE is higher than that of rubber material, so it can provide stronger resistance to foreign matter damage during washing. In order to improve the resistance to these foreign matters, at the same time, due to the low friction, self-lubricating properties of the modified PTFE and the use of belt seals, the sealing effect of its long-term use is guaranteed...

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PUM

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Abstract

The invention relates to a sealing part, in particular to a durable washing machine seal ring. The durable washing machine seal ring comprises an outer sealing part, a supporting ring and an inner sealing part, the outer sealing part is matched with a mounting base hole, the inner sealing part is matched with a dewatering shaft in an interference fit manner, the supporting ring is arranged between the outer sealing part and the inner sealing part, and is connected with 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 located between the first sealing lip and the third sealing lip, wherein the first sealing lip comprises a flexible PTFE (polytetrafluoroethylene) sheet. The sealing stability of the first sealing lip is enhanced, and thereby the durable washing machine seal ring can have a stable sealing effect when in use for a long time.

Description

technical field [0001] The invention relates to a sealing member, in particular to a long-lasting washing machine sealing ring. Background technique [0002] The washing machine dehydration shaft sealing ring is used to seal the washing water inside the washing machine to prevent the internal washing water from leaking and causing corrosion and damage to the motor and other components. The dehydration shaft sealing ring generally consists of an outer sealing part, a support ring and an inner sealing part. The outer sealing part cooperates with the mounting seat hole to realize the installation of the sealing ring and the sealing of the mounting seat hole; the supporting ring plays the role of connecting the outer sealing part and the inner sealing part; the inner sealing part cooperates with the dehydration shaft to realize the sealing of the dehydration shaft. Prevent washing water from leaking on the dehydration shaft when it is still and running. Through the reliable in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/32F16J15/3208F16J15/3232F16J15/3248F16J15/3284
Inventor 张明森
Owner QINGDAO TKS SEALING IND
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