Sealing structure for water containing barrel and dewatering shaft of washing machine

Abstract

The utility model discloses a sealing structure for a water containing barrel and a dewatering shaft of a washing machine, which belongs to the technical field of washing machines and is characterized by comprising a dewatering shaft main body, a water containing barrel main body, a cup and a connecting sleeve, the water containing barrel main body is provided with a central hole, the dewatering shaft main body penetrates through the central hole, and a first water seal is arranged between the dewatering shaft main body and the water containing barrel main body. The water containing barrel body is provided with a connecting ring, the connecting sleeve covers the connecting ring, the connecting sleeve is provided with an annular supporting part and an annular positioning part, the lower end face of the annular supporting part abuts against the upper end face of the connecting ring, the annular positioning part is inserted into the connecting ring, the outer side wall of the annular positioning part abuts against the inner side wall of the connecting ring, and the cup is connected with the dewatering shaft body. A second water seal is arranged between the cup and the connecting sleeve, a positioning ring is arranged on the inner side wall of the connecting sleeve, a self-tightening spring groove for installing a self-tightening spring is formed in the outer side wall of the second water seal, the positioning ring is inserted into the self-tightening spring groove, and the structure can guarantee the sealing effect between the water containing barrel and the dewatering shaft of the washing machine.

Description

Technical Field

[0001] The utility model belongs to the technical field of washing machines, and particularly relates to a sealing structure of a water tub and a dehydration shaft of a washing machine. Background Art

[0002] The Chinese patent with the announcement number CN110067107A discloses a washing machine, including a water-containing tub assembly, a dehydration tub assembly and a first sealing member. The water-containing tub assembly includes a water-containing tub; the dehydration tub assembly includes a dehydration tub, the dehydration tub defines a receiving cavity, the dehydration tub is located in the water-containing tub and can rotate relative to the water-containing tub; the first sealing member is located between the bottom of the dehydration tub and the water-containing tub, and is used for sealing between the dehydration tub and the water-containing tub, and the first sealing member, the water-containing tub and the dehydration tub define a sealed space; wherein, a first drainage hole connected to the receiving cavity and the sealed space is provided on the portion of the dehydration tub located in the sealed space, and a second drainage hole connected to the sealed space is provided on the portion of the water-containing tub located in the sealed space, and the first drainage hole and the second drainage hole are connected.

[0003] The above technical solution has the following defects: the water tub assembly includes a pressure plate connected to the water tub, the first seal is pressed between the pressure plate and the water tub, the pressure plate is located above the water tub, and the cover is provided on the upper end surface of the water tub, which is used to press the first seal, and the first seal is tightened by the pressure plate and the water tub to achieve the seal between the first seal and the water tub. However, with the increase of usage time, the stability of the pressure plate is reduced due to vibration and self-wear, which affects the coordination between the pressure plate, the first seal and the water tub, and further affects the sealing effect between the first seal and the water tub. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and proposes a sealing structure for a washing machine water tub and a dehydration shaft.

[0005] The above technical objectives of the utility model can be achieved through the following technical solutions: a sealing structure of a water tub and a dehydration shaft of a washing machine, comprising a dehydration shaft body, a water tub body, a cup and a connecting sleeve, the water tub body is provided with a center hole, the dehydration shaft body passes through the center hole, a water seal 1 is arranged between the dehydration shaft body and the water tub body, a connecting ring is arranged on the water tub body, the connecting sleeve cover is arranged on the connecting ring, the connecting sleeve has an annular support portion and an annular positioning portion, the lower end surface of the annular support portion abuts against the upper end surface of the connecting ring, the annular positioning portion is inserted into the connecting ring, and the outer side wall of the annular positioning portion abuts against the inner side wall of the connecting ring, the cup is connected to the dehydration shaft body, and a water seal 2 is arranged between the cup and the connecting sleeve, the inner side wall of the connecting sleeve is provided with a positioning ring, the outer side wall of the water seal 2 is provided with a self-tightening spring groove for installing a self-tightening spring, and the positioning ring is inserted into the self-tightening spring groove.

[0006] In the above-mentioned sealing structure between the water tub and the dehydration shaft of a washing machine, the cup is provided with a plurality of mounting holes and water holes, the dehydration shaft body is provided with a mounting portion, and the mounting portion is provided with a plurality of threaded holes corresponding to the mounting holes.

[0007] In the above-mentioned sealing structure between the water tub and the dehydration shaft of the washing machine, a positioning hole 1 is provided on the cover cup, and a positioning shaft corresponding to the positioning hole 1 is provided on the mounting portion.

[0008] In the above-mentioned sealing structure of the washing machine water tub and the dehydration shaft, a groove is formed between the connecting ring and the water tub body, and a water outlet channel is provided on the water tub body, and the water outlet channel is connected to the groove and the drain valve.

[0009] In the above-mentioned sealing structure between the water tub and the dehydration shaft of the washing machine, an extension portion is provided on the upper end surface of the cup, the extension portion is annular, and the inner side wall of the extension portion is in contact with the outer side wall of the dehydration shaft body.

[0010] In the above-mentioned sealing structure between the water tub and the dehydration shaft of the washing machine, a limiting flange is provided on the inner side wall of the central hole, and the lower end surface of the limiting flange abuts against the water seal.

[0011] In the above-mentioned sealing structure between the water tub and the dehydration shaft of the washing machine, a rubber ring is sleeved on the outer wall of the cover cup, and the lower end surface of the rubber ring abuts against the end surface of the cover cup.

[0012] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0013] A water seal 1 is arranged between the dehydration shaft body and the water tub body, and the dehydration shaft body and the water tub body are sealed by the water seal pair, so as to ensure the sealing between the two. A connecting sleeve cover is arranged on the connecting ring, and the cover cup is connected to the dehydration shaft body. A water seal 2 is arranged between the cover cup and the connecting sleeve, and the cover cup and the connecting sleeve are sealed by the water seal pair, so as to ensure the sealing between the two. Moreover, the relative stability of the connecting sleeve and the water seal 2 can be effectively guaranteed by the cooperation of the self-tightening spring and the self-tightening spring groove. Moreover, since the annular positioning part of the connecting sleeve is inserted into the connecting ring, the outer side wall of the annular positioning part is abutted against the inner side wall of the connecting ring, and the lower end face of the annular supporting part of the connecting sleeve is abutted against the upper end face of the connecting ring, so as to effectively ensure the stability of the connecting sleeve, avoid affecting the stability of the water seal 2 due to the reduced stability of the connecting sleeve, and effectively ensure the sealing effect between the water tub and the dehydration shaft of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a cross-sectional view of an embodiment;

[0015] Figure 2 It is an enlarged view of part A of the embodiment;

[0016] Figure 3 It is a structural schematic diagram of the water tank body of the embodiment;

[0017] Figure 4 It is a partial structural diagram of an embodiment.

[0018] Figure numerals: 1. water storage tub body; 2. dehydration shaft body; 3. cup; 4. connecting sleeve; 5. rubber ring; 6. water seal 1; 7. connecting ring; 8. annular support portion; 9. annular positioning portion; 10. water seal 2; 11. positioning ring; 12. self-tightening spring groove; 13. mounting hole; 14. mounting portion; 15. threaded hole; 16. positioning hole 1; 17. positioning shaft; 18. groove; 19. water outlet channel; 20. extension portion; 21. limiting flange; 22. center hole; 23. water through hole. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] A sealing structure for a washing machine water tub and a dehydration shaft, such as Figures 1 to 4 As shown, it includes a dehydration shaft body 2, a water storage tub body 1, a cup 3 and a connecting sleeve 4.

[0021] A center hole 22 is provided on the water storage barrel body 1, and the center hole 22 is provided along the central axis of the water storage barrel body 1. The dehydration shaft body 2 passes through the center hole 22. A water seal 6 is provided between the dehydration shaft body 2 and the water storage barrel body 1. The water seal 6 is used to seal the dehydration shaft body 2 and the water storage barrel body 1, so as to ensure the sealing between the two.

[0022] It should be noted that a limiting flange 21 is provided on the inner side wall of the center hole 22. The limiting flange 21 is annular and is integrally provided with the water storage tub body 1. The lower end surface of the limiting flange 21 abuts against a water seal 6 to limit the water seal 6, thereby improving the stability of the water seal 6, thereby ensuring that the water seal 6 effectively seals the dehydration shaft body 2 and the water storage tub body 1.

[0023] A connecting ring 7 is provided at the bottom of the tub body 1 . Preferably, the connecting ring 7 is integrally provided with the tub body 1 .

[0024] The cup 3 is connected to the dehydration shaft body 2. Specifically, a plurality of mounting holes 13 are provided on the cup 3, and the dehydration shaft body 2 has a mounting portion 14. The mounting portion 14 has a plurality of threaded holes 15 corresponding to the mounting holes 13. The connection between the cup 3 and the mounting portion 14 is achieved by screwing the threaded holes 15 and the mounting holes 13.

[0025] Furthermore, a positioning hole 16 is provided on the cup 3, and a positioning shaft 17 corresponding to the positioning hole 16 is provided on the mounting portion 14. During installation, the positioning hole 16 cooperates with the positioning shaft 17 to ensure the relative stability of the cup 3 and the mounting portion 14, and it is more convenient and quick to connect the cup 3 and the mounting portion 14 by screws.

[0026] The cup 3 is provided with a water hole 23 , and the inner barrel is provided with a drainage hole corresponding to the water hole 23 , and drainage is achieved through the cooperation between the drainage hole and the water hole 23 .

[0027] An extension portion 20 is provided on the upper end surface of the cup 3. The extension portion 20 is annular, and the inner wall of the extension portion 20 is in contact with the outer wall of the dehydration shaft body 2, thereby increasing the contact area between the cup 3 and the dehydration shaft body 2 and avoiding eccentricity of the cup 3 during rotation.

[0028] A second water seal 10 is provided between the cup 3 and the connecting sleeve 4, and the cup 3 and the connecting sleeve 4 are sealed by the second water seal 10, so as to ensure the sealing between the two.

[0029] Furthermore, a rubber ring 5 is sleeved on the outer wall of the cup 3 , and the lower end surface of the rubber ring 5 abuts against the end surface of the cup 3 .

[0030] The connecting sleeve 4 is covered on the connecting ring 7, and the connecting sleeve 4 is provided with an annular support portion 8 and an annular positioning portion 9. It should be noted that the connecting sleeve 4 is integrally formed, the lower end face of the annular support portion 8 is abutted against the upper end face of the connecting ring 7, the annular positioning portion 9 is inserted into the connecting ring 7, and the outer side wall of the annular positioning portion 9 is abutted against the inner side wall of the connecting ring 7, thereby effectively ensuring the stability of the connecting sleeve 4 and avoiding affecting the stability of the water seal 2 10 due to the reduced stability of the connecting sleeve 4, thereby affecting the sealing effect of the water seal 2 10. A positioning ring 11 is provided on the inner side wall of the connecting sleeve 4, and a self-tightening spring groove 12 is opened on the outer side wall of the water seal 2 10, and the positioning ring 11 is inserted into the self-tightening spring groove 12.

[0031] As another solution, the connecting sleeve 4 can also be integrally formed with the connecting ring 7. Of course, the connecting sleeve 4 can also be connected to the connecting ring 7 by gluing, heat welding, etc. to achieve sealing between the two.

[0032] A groove 18 is formed between the connecting ring 7 and the water tank body 1. A water outlet channel 19 is provided on the water tank body 1. The water outlet channel 19 is connected to the groove 18 and the drain valve. When draining water, the drain valve is opened, and water flows into the groove 18 and is then discharged through the water outlet channel 19 and the drain valve. When storing water, the drain valve is closed.

[0033] The specific embodiments described in this article are merely examples of the spirit of the utility model; technicians in the technical field to which the utility model belongs can make various modifications or additions to the described specific embodiments or replace them in a similar manner, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A sealing structure between a water tub and a dehydration shaft of a washing machine, characterized in that: The invention comprises a dehydration shaft body (2), a water storage barrel body (1), a cover cup (3) and a connecting sleeve (4); the water storage barrel body (1) is provided with a central hole (22); the dehydration shaft body (2) passes through the central hole (22); a water seal (6) is arranged between the dehydration shaft body (2) and the water storage barrel body (1); a connecting ring (7) is arranged on the water storage barrel body (1); the connecting sleeve (4) is covered on the connecting ring (7); the connecting sleeve (4) has an annular support portion (8) and an annular positioning portion (9); the lower end surface of the annular support portion (8) is in contact with the water storage barrel body (1); The upper end surfaces of the connecting ring (7) are abutted against each other, the annular positioning portion (9) is inserted into the connecting ring (7), and the outer wall of the annular positioning portion (9) is abutted against the inner wall of the connecting ring (7), the cup (3) is connected to the dehydration shaft body (2), and a water seal 2 (10) is arranged between the cup (3) and the connecting sleeve (4), a positioning ring (11) is arranged on the inner wall of the connecting sleeve (4), and a self-tightening spring groove (12) for installing a self-tightening spring is opened on the outer wall of the water seal 2 (10), and the positioning ring (11) is inserted into the self-tightening spring groove (12).

2. The sealing structure of the water tub and the dehydration shaft of a washing machine according to claim 1, characterized in that: The cup (3) is provided with a plurality of mounting holes (13) and water holes (23); the dehydration shaft body (2) is provided with a mounting portion (14); and the mounting portion (14) is provided with a plurality of threaded holes (15) corresponding to the mounting holes (13).

3. The sealing structure of the water tub and the dehydration shaft of a washing machine according to claim 2, characterized in that: The cup (3) is provided with a positioning hole (16), and the mounting portion (14) is provided with a positioning shaft (17) corresponding to the positioning hole (16).

4. The sealing structure between the water tub and the dehydration shaft of a washing machine according to claim 1, characterized in that: A groove (18) is formed between the connecting ring (7) and the water tub body (1), and a water outlet channel (19) is provided on the water tub body (1), wherein the water outlet channel (19) is connected to the groove (18) and the water drain valve.

5. The sealing structure between the water tub and the dehydration shaft of a washing machine according to claim 1, characterized in that: An extension portion (20) is provided on the upper end surface of the cup (3); the extension portion (20) is annular, and the inner side wall of the extension portion (20) is in contact with the outer side wall of the dehydration shaft body (2).

6. The sealing structure of the water tub and the dehydration shaft of a washing machine according to claim 1, characterized in that: The inner side wall of the center hole (22) is provided with a limiting flange (21), and the lower end surface of the limiting flange (21) abuts against the water seal 1 (6).

7. The sealing structure between the water tub and the dehydration shaft of a washing machine according to claim 1, characterized in that: The outer wall of the cup (3) is sleeved with a rubber ring (5), and the lower end surface of the rubber ring (5) abuts against the end surface of the cup (3).

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