阅读说明：本技术 一种洗衣机离合器密封装置 (Washing machine clutch sealing device ) 是由 林朝显 林华斌 温荣耀 蔡泽豪 马定豪 于 2021-09-07 设计创作，主要内容包括：本发明公开了一种洗衣机离合器密封装置,包括轴承座、大水封、外桶、内桶、脱水轴、密封垫圈、螺栓组件和轴承,密封垫圈包括橡胶密封圈和骨架,所述橡胶密封圈和骨架通过硫化工艺制成一体结构；所述橡胶密封圈上设置有若干个安装通孔,所述橡胶密封圈的上端面围绕每个安装通孔的上端口一体设置有上密封凸台,所述上密封凸台的上端与内桶的外底面贴紧密封；所述橡胶密封圈的下端面上一体设置有下内密封凸台和下外密封凸台,所述下内密封凸台和下外密封凸台均呈环形状分布,且下内密封凸台和下外密封凸台的下端均与脱水轴的法兰平面贴紧密封。上述技术方案,结构设计合理、密封性能好、工作可靠、使用寿命长且实用性好。(The invention discloses a washing machine clutch sealing device, which comprises a bearing seat, a large water seal, an outer barrel, an inner barrel, a dewatering shaft, a sealing washer, a bolt assembly and a bearing, wherein the sealing washer comprises a rubber sealing ring and a framework, and the rubber sealing ring and the framework are manufactured into an integral structure through a vulcanization process; the rubber sealing ring is provided with a plurality of mounting through holes, the upper end surface of the rubber sealing ring is integrally provided with an upper sealing boss around the upper port of each mounting through hole, and the upper end of the upper sealing boss is tightly attached and sealed with the outer bottom surface of the inner barrel; the lower end face of the rubber sealing ring is integrally provided with a lower inner sealing boss and a lower outer sealing boss which are distributed in an annular shape, and the lower ends of the lower inner sealing boss and the lower outer sealing boss are tightly attached to and sealed with the flange plane of the dewatering shaft. Above-mentioned technical scheme, structural design is reasonable, sealing performance is good, reliable operation, long service life and practicality are good.)

1. The utility model provides a washing machine clutch sealing device, includes bearing frame (1), big water seal (2), outer bucket (3), interior bucket (4), dehydration axle (5), seal ring (6), bolt assembly (7) and bearing (8), bearing (8) are installed in the bearing chamber of bearing frame (1), and dehydration axle (5) are installed in the hole of bearing (8), install between dehydration axle (5) and bearing frame (1) big water seal (2), the upper end an organic whole of dehydration axle (5) is provided with flange (51), the upper end of flange (51) is provided with flange plane, its characterized in that: the sealing washer (6) comprises a rubber sealing ring (61) and a framework (62), and the rubber sealing ring (61) and the framework (62) are manufactured into an integral structure through a vulcanization process; the rubber sealing ring (6) is provided with a plurality of mounting through holes, the upper end surface of the rubber sealing ring (61) is integrally provided with an upper sealing boss (611) around the upper port of each mounting through hole, and the upper end of the upper sealing boss (611) is tightly attached and sealed with the outer bottom surface of the inner barrel (4); the lower end face of the rubber sealing ring (61) is integrally provided with a lower inner sealing boss (612) and a lower outer sealing boss (613), the lower inner sealing boss (612) and the lower outer sealing boss (613) are distributed in an annular shape, and the lower ends of the lower inner sealing boss (612) and the lower outer sealing boss (613) are tightly attached to and sealed with the flange plane of the dewatering shaft (5).

2. A washing machine clutch seal assembly as claimed in claim 1, wherein: the sealing washer (6) is arranged on the upper end face of the connecting flange (51), the bottom of the inner barrel (4) is arranged on the upper end face of the sealing washer (6), and the inner barrel (4), the sealing washer (6) and the connecting flange (51) are fastened through the bolt assembly (7).

3. A washing machine clutch seal assembly as claimed in claim 2, wherein: the bottom of the inner barrel (4) is provided with a plurality of first bolt connecting through holes, the position, aligned with each first bolt connecting through hole, of the sealing washer (6) is provided with a mounting through hole (60), the position, aligned with each mounting through hole (60), of the connecting flange of the dewatering shaft (5) is provided with a second bolt connecting through hole, and the inner barrel (4), the sealing washer (6) and the connecting flange (51) are fixedly connected through a bolt assembly (7).

4. A washing machine clutch seal assembly as claimed in claim 1 or 3, wherein: the edge position of the lower end face of the framework (62) of the sealing washer (6) is integrally provided with a ring of annular boss (621), and an air cavity (9) is formed among the annular boss (621), the large water seal (2), the outer barrel (3) and the dewatering shaft (5).

5. A washing machine clutch seal device as claimed in claim 4, wherein: big water seal (2) are including big water seal boss (21), interior sealing lip (22) and external sealing lip (23), interior sealing lip (22) are higher than the lower terminal surface setting of annular boss (621), and interior sealing lip (22) are located air cavity (9).

6. A washing machine clutch seal assembly as claimed in claim 5 in which: the excircle of the large water seal (2) is in interference fit with the inner hole of the bearing seat (1), and the inner sealing lip (22) of the large water seal (2) is in contact with the excircle of the water seal matching part of the dewatering shaft (5).

7. A washing machine clutch seal assembly as claimed in claim 6 wherein: the bottom of the outer barrel (3) is connected with the large water seal (2), and the large water seal sealing boss (21) and the outer sealing lip (23) are tightly attached to the bottom of the outer barrel (3) to form sealing.

8. A washing machine clutch seal assembly as claimed in claim 1, wherein: and a gap is reserved between the sealing washer (6) and the outer barrel (3).

Technical Field

The invention relates to the technical field of washing machine clutches, in particular to a washing machine clutch sealing device.

Background

At present, in the process of washing clothes for a long time, a plurality of clothes scraps, silt and the like can be accumulated in an outer barrel and attached to an outer ring of a large water seal lip, most of large water seals of the existing clutch are of a three-lip structure, a spring ring is arranged on the outer ring of an upper lip to maintain the pressing force of the lip on a dewatering shaft, if the clothes scraps, the silt and the like are accumulated on the spring ring of the large water seal lip for a long time, the spring ring is blocked and loses the acting force on the lip, and thus, the phenomena of water leakage, scraps and the like can enter the clutch through the large water seal to cause the failure of the clutch are caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the washing machine clutch sealing device which is reasonable in structural design, good in sealing performance, reliable in work, long in service life and good in practicability.

In order to achieve the purpose, the invention provides the following technical scheme: a washing machine clutch sealing device comprises a bearing seat, a large water seal, an outer barrel, an inner barrel, a dewatering shaft, a sealing washer, a bolt assembly and a bearing, wherein the bearing is installed in a bearing chamber of the bearing seat, the dewatering shaft is installed in an inner hole of the bearing, the large water seal is installed between the dewatering shaft and the bearing seat, a connecting flange is integrally arranged at the upper end of the dewatering shaft, a flange plane is arranged at the upper end of the connecting flange, the sealing washer comprises a rubber sealing ring and a framework, and the rubber sealing ring and the framework are manufactured into an integral structure through a vulcanization process; the rubber sealing ring is provided with a plurality of mounting through holes, the upper end surface of the rubber sealing ring is integrally provided with an upper sealing boss around the upper port of each mounting through hole, and the upper end of the upper sealing boss is tightly attached and sealed with the outer bottom surface of the inner barrel; the lower end face of the rubber sealing ring is integrally provided with a lower inner sealing boss and a lower outer sealing boss which are distributed in an annular shape, and the lower ends of the lower inner sealing boss and the lower outer sealing boss are tightly attached to and sealed with the flange plane of the dewatering shaft.

The invention is further configured to: the sealing washer is arranged on the upper end face of the connecting flange, the bottom of the inner barrel is arranged on the upper end face of the sealing washer, and the inner barrel, the sealing washer and the connecting flange are fastened through the bolt assembly.

The invention is further configured to: the bottom of the inner barrel is provided with a plurality of first bolt connecting through holes, the position of the sealing washer, which is aligned with each first bolt connecting through hole, is provided with a mounting through hole, the position of the connecting flange of the dewatering shaft, which is aligned with each mounting through hole, is provided with a second bolt connecting through hole, and the inner barrel, the sealing washer and the connecting flange are fixedly connected through a bolt assembly.

The invention is further configured to: the edge position of the lower end face of the framework of the sealing washer is integrally provided with a circle of annular boss, and an air cavity is formed among the annular boss, the large water seal, the outer barrel and the dewatering shaft.

The invention is further configured to: the big water seal comprises a big water seal sealing boss, an inner sealing lip and an outer sealing lip, the inner sealing lip is higher than the lower end face of the annular boss, and the inner sealing lip is located in the air cavity.

The invention is further configured to: the excircle of the large water seal is in interference fit with the inner hole of the bearing seat, and the inner sealing lip of the large water seal is in contact with the excircle of the water seal matching part of the dewatering shaft.

The invention is further configured to: the bottom of the outer barrel is connected with a large water seal, and the large water seal sealing boss and the outer sealing lip are tightly attached to the bottom of the outer barrel to form sealing.

The invention is further configured to: a gap is reserved between the sealing washer and the outer barrel.

The invention has the advantages that: compared with the prior art, the structure of the invention is more reasonable, after the sealing washer is fastened by the bolt assembly, the upper sealing boss, the lower inner sealing boss and the lower outer sealing boss are all subjected to the extrusion acting force, so that the upper end of the upper sealing boss is tightly attached to the outer bottom surface of the inner barrel for sealing; the lower ends of the lower inner sealing boss and the lower outer sealing boss are tightly attached to the flange plane of the dewatering shaft for sealing.

After water is injected into the outer barrel, a closed space is formed in the air cavity after the water level reaches the lower end face of the annular boss of the sealing washer, air pressure intensity exists, the water level in the outer barrel continues to rise, and the water level in the air cavity cannot continue to rise. Foreign matters such as silt and clothes scraps are isolated from being attached to the large water seal lip, so that the phenomena that the clutch leaks water and the scraps permeate into the inside of the clutch are effectively avoided, and the clutch is reasonable in structural design, good in sealing performance, reliable in work, long in service life and good in practicability.

The invention is further described with reference to the drawings and the specific embodiments in the following description.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of section I of FIG. 1;

FIG. 3 is a schematic view of a seal gasket according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic top view of a seal gasket according to an embodiment of the invention;

FIG. 6 is a schematic cross-sectional view of a large water seal according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of the outer barrel of the embodiment of the present invention after water is filled.

Detailed Description

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, 2, 3, 4, 5, 6 and 7, the present invention discloses a washing machine clutch sealing device, which comprises a bearing seat 1, a large water seal 2, an outer tub 3, an inner tub 4, a dewatering shaft 5, a sealing washer 6, a bolt assembly 7 and a bearing 8, wherein the bearing 8 is installed in a bearing chamber of the bearing seat 1, the dewatering shaft 5 is installed in an inner hole of the bearing 8, the large water seal 2 is installed between the dewatering shaft 5 and the bearing seat 1, the upper end of the dewatering shaft 5 is integrally provided with a connecting flange 51, the upper end of the connecting flange 51 is provided with a flange plane, the sealing washer 6 comprises a rubber sealing ring 61 and a framework 62, and the rubber sealing ring 61 and the framework 62 are manufactured into an integral structure through a vulcanization process; the rubber sealing ring 6 is provided with a plurality of mounting through holes, the upper end surface of the rubber sealing ring 61 is integrally provided with an upper sealing boss 611 around the upper port of each mounting through hole, and the upper end of the upper sealing boss 611 is tightly attached and sealed with the outer bottom surface of the inner barrel 4; the lower end face of the rubber sealing ring 61 is integrally provided with a lower inner sealing boss 612 and a lower outer sealing boss 613, the lower inner sealing boss 612 and the lower outer sealing boss 613 are distributed in an annular shape, and the lower ends of the lower inner sealing boss 612 and the lower outer sealing boss 613 are tightly attached to the flange plane of the dewatering shaft 5 for sealing.

Preferably, the sealing washer 6 is mounted on the upper end surface of the connecting flange 51, the bottom of the inner barrel 4 is mounted on the upper end surface of the sealing washer 6, and the inner barrel 4, the sealing washer 6 and the connecting flange 51 are fastened through the bolt assembly 7.

In order to make the structure of the present invention more reasonable, preferably, the bottom of the inner tub 4 of the present embodiment is provided with a plurality of first bolt connecting through holes, the position of the sealing washer 6 aligned with each first bolt connecting through hole is provided with a mounting through hole 60, the position of the connecting flange of the dewatering shaft 5 aligned with each mounting through hole 60 is provided with a second bolt connecting through hole, and the inner tub 4, the sealing washer 6 and the connecting flange 51 are fixed by the bolt assembly 7.

The edge position of the lower end face of the framework 62 of the sealing washer 6 is integrally provided with a circle of annular boss 621, and an air cavity 9 is formed among the annular boss 621, the large water seal 2, the outer barrel 3 and the dewatering shaft 5.

Big water seal 2 includes big water seal boss 21, interior sealing lip 22 and external sealing lip 23, interior sealing lip 22 is higher than the lower terminal surface setting of annular boss 621, and interior sealing lip 22 is located air cavity 9.

The excircle of the large water seal 2 is in interference fit with the inner hole of the bearing seat 1, and the inner sealing lip 22 of the large water seal 2 is in contact with the excircle of the water seal fit position of the dewatering shaft 5.

The bottom of the outer barrel 3 is connected with the large water seal 2, and the large water seal sealing boss 21 and the outer sealing lip 23 are tightly attached to the bottom of the outer barrel 3 to form sealing.

A gap is reserved between the sealing washer 6 and the outer barrel 3.

In practical application, after the sealing washer is fastened through the bolt assembly, the upper sealing boss, the lower inner sealing boss and the lower outer sealing boss are all subjected to extrusion acting force, so that the upper end of the upper sealing boss is tightly attached to and sealed with the outer bottom surface of the inner barrel; the lower ends of the lower inner sealing boss and the lower outer sealing boss are tightly attached to the flange plane of the dewatering shaft for sealing.

After water is injected into the outer barrel, a closed space is formed in the air cavity after the water level reaches the lower end face of the annular boss of the sealing washer, air pressure intensity exists, the water level in the outer barrel continues to rise, and the water level in the air cavity cannot continue to rise. Foreign matters such as silt and clothes scraps are isolated from being attached to the large water seal lip, so that the phenomena that the clutch leaks water and the scraps permeate into the inside of the clutch are effectively avoided, and the clutch is reasonable in structural design, good in sealing performance, reliable in work, long in service life and good in practicability.

The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.