A water-sealed clutch and washing machine thereof

Abstract

A water-sealed clutch and washing machine thereof, wherein the clutch is a traditional clutch with a mechanical sealing device added thereto, and the clutch has the functions of power transmission and clutch switching, as well as the function of connecting the inside of a washing tub with the outside of an outer tub, so that the water in the washing tub is directly connected to the air chamber cavity and the drain valve of the water level sensor on the outside of the outer tub, and there is no water between the outer tub and the washing tub. The clutch of the present invention fixes the stainless steel sleeve of the mechanical seal and the upper water seal to the clutch, and both are in relationship with the upper shaft sleeve of the clutch to ensure the concentricity and coaxiality of the two, and ensure effective sealing. The clutch of the present invention can be an ordinary clutch, or a dual-power clutch, a triple-power clutch or other forms, with a simple structure, safety and reliability.

Description

Technical Field

[0001] The invention relates to the technical field of an environmentally friendly washing machine with a hole-free inner barrel, and in particular to a water-sealed clutch and a washing machine thereof. Background Art

[0002] In order to solve the water-saving and secondary pollution problems of fully automatic pulsator or drum washing machines, the industry has developed environmentally friendly washing machines, namely, hole-free washing drum washing machines. For example, the structure of a pulsator washing machine is that the lower part of the inner drum is designed as an integral whole, and only the part of the drum wall close to the balance ring has a circle of water-spraying holes, and there are no holes in other parts. During the washing process of this structure, the inner drum is filled with water, and there is no water between the inner drum and the cabinet, which can solve the water-saving and secondary pollution problems. To perform such a function, a cavity cover is generally installed in the bottom of the outer drum, an upper water seal is fixedly installed on the cavity cover, and a The inverted steel bowl is flexibly matched with the upper water seal to form a relatively sealed cavity, realizing the dynamic connection between the washing bucket and the outside. This structure is feasible in principle, but in fact, in the assembly process, the inverted bowl is installed at the bottom of the washing bucket flange, and the cavity cover is fixed to the inner side of the bottom of the outer barrel by screws or welding. In this way, it is difficult to ensure the coaxiality of the inverted bowl and the upper water seal installed on the cavity cover, which is easy to cause mechanical wear, causing the lip of the upper water seal to wear and fail, causing it to leak, especially for dual-power washing machines and triple-power washing machines. During the washing process, the washing bucket must be rotated, which is more likely to leak. In addition, in the existing technology, the inverted bowl structure is cylindrical, and the water hole is limited by the structure and has a very small size, which is easy to cause blockage here. In solving practical problems, the present invention installs the cavity and its upper water seal, and the inverted steel bowl matched with it, all on the clutch to ensure their coaxiality, and the inverted steel bowl is processed into two bodies, and then combined into a heterogeneous structure, which can greatly increase the cross-section of the water hole and avoid clogging of debris here.

[0003] Patent application JP07250989A discloses a dehydration washing machine, a washing machine / dehydration barrel (hereinafter referred to as the inner barrel) rotatably mounted with a pulsator at the center of the bottom, the inner barrel rotatably mounted inside the outer barrel, the pulsator connected to the deceleration clutch through the washing shaft, the inner barrel assembled and connected to the washing shaft through the dehydration shaft, a coupling assembly is assembled on the inner barrel and the dehydration shaft, a vertical drainage hole is arranged on the coupling, a sealing receiver is arranged at a position corresponding to the drainage hole below the coupling, a water seal is arranged at the connection between the sealing receiver and the coupling, the lower end of the sealing receiver is arranged on the upper surface of the bottom of the outer barrel, a sealing gasket is arranged at the connection between the sealing receiver and the bottom of the outer barrel, and a drainage port connected to the sealing receiver is arranged on the bottom of the outer barrel. This scheme discloses a washing barrel with no holes in the inner barrel, by arranging a coupling at the bottom of the inner barrel to connect a sealing receiver and the inner barrel, and arranging a drainage hole on the coupling, the washing water in the inner barrel is connected to the sealing receiver.

[0004] However, in this solution, there are the following technical problems:

[0005] 1. The coupling is connected to the clutch upper sleeve and flange. The diameter of the drainage hole set on the coupling must be much smaller than the distance between the end of the sealing receiver and the clutch upper sleeve, resulting in a very small flow area of ​​the drainage hole, which is easily blocked by hair or washing during the washing process.

[0006] 2. During the assembly process, it is difficult to ensure the same coaxiality of the water seal and the coupling at the connection between the sealing receiver and the coupling. Although it is feasible in theory, it is easy to cause mechanical wear during use, which may cause the seal of the water seal to fail due to wear and cause water leakage.

[0007] 3. In order to increase the drainage efficiency of washing water, thereby increasing the diameter of the connecting piece and expanding the diameter of the drainage hole, it is necessary to increase the size of the oil seal set at the connection between the sealing receiver and the connecting piece. However, in actual application, the larger the size of the oil seal there is, the easier it is to leak.

[0008] 4. In this solution, the sealing receiver is arranged at the upper part of the bottom of the outer cylinder, so that the height difference between the inner cylinder and the outer cylinder has to be increased, which makes a large change to the assembly of the whole machine, which is not conducive to the actual production application. In addition, raising the height of the inner cylinder is not conducive to the stability of the connection of the inner cylinder.

[0009] 5. When the outer diameter of the water seal at the connecting parts is the same, how to increase the drainage volume of the washing water is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0010] The basic purpose of the present invention is to provide a water-sealed clutch and a washing machine thereof, so as to solve the problems of water leakage and blockage of such environmentally friendly and water-saving washing machines currently on the market.

[0011] A water-sealed water clutch and washing machine thereof, the clutch of the present invention is based on the traditional clutch, and a mechanical sealing device is added, that is, an inverted steel bowl is installed on the upper shaft sleeve of the clutch, and a plurality of water holes are arranged on the inverted steel bowl, and a stainless steel sleeve is fixed on the inverted steel bowl, and the two are sealed and fixed together, and can be press-fitted or welded in various ways. The two form a special-shaped inverted steel bowl, which increases the cross-sectional area of ​​the water hole.

[0012] Furthermore, the cavity shell composed of the cavity upper cover and the cavity lower cover is inserted into the clutch large water seal groove and fixedly connected to the bottom plate of the clutch mounting plate. An upper water seal whose inner diameter matches the above-mentioned stainless steel sleeve is fixed in the cavity upper cover. In this way, the cavity upper cover, the cavity lower cover, the upper water seal, the stainless steel sleeve, the clutch large water seal, the clutch upper shaft sleeve, etc. form a cavity, the upper part of which has a water hole connected to the inside of the washing bucket, and the lower part of the cavity lower cover is provided with an internal drain port, which is connected to the outside of the outer barrel through the clutch mounting plate. There is a rotating sealing structure between the upper water seal and the stainless steel sleeve, which ensures that the water in the washing bucket does not leak when the stainless steel sleeve rotates with the upper shaft sleeve and the inverted steel bowl.

[0013] Furthermore, the clutch of the invention can be a common deceleration clutch, or can be a dual-power clutch, a triple-power clutch or other clutches; during the washing process, the washing tub can rotate or not.

[0014] Furthermore, the inverted steel bowl is a circular bowl-shaped structure, which is coaxially mounted on the clutch upper sleeve, and the stainless steel sleeve is a circular structure, which is sealed and fixed together with the inverted steel bowl, and the annular surface of the stainless steel sleeve and the water seal is ensured to be coaxially mounted with the clutch upper sleeve. The inner diameter of the stainless steel sleeve is between 40 mm and 100 mm. The diameter of the clutch upper sleeve here is 25 mm, and the water-passing cross-section is more than 8 square centimeters.

[0015] Furthermore, the above-mentioned cavity upper cover and cavity lower cover are both circular structures, and the cavity upper cover and cavity lower cover are coaxially sealed and fixed together. A positioning structure can be designed between the two, and the connection can be fixed by flat plate welding or screws and sealing strips to ensure that there is no water leakage between the two and to ensure the coaxiality of the two. The cavity upper cover has a structure for fixing the upper water seal, and ensures the coaxiality of the upper water seal and the cavity upper cover. The lower end of the cavity lower cover has a circle of annular ribs, which fits tightly with the groove of the clutch large water seal to ensure the coaxial installation of the cavity lower cover and the clutch upper sleeve, ensuring the coaxiality of the two. The cavity upper cover and cavity lower cover are fixed together and connected to the mounting plate of the clutch. Ensure the coaxiality of the upper water seal and the upper sleeve.

[0016] Furthermore, an inner drain port is provided at the lower end of the cavity lower cover, and a hole is opened at a corresponding position on the clutch mounting plate so that the inner drain port extends to the lower bottom surface of the clutch mounting plate.

[0017] Furthermore, an O-ring is arranged around the outer side of the inverted steel bowl, and a sealing gasket is also arranged around the cavity upper cover.

[0018] In this way, a mechanical sealing structure is added to the traditional clutch to form a water-sealed clutch, which is a complete overall structure.

[0019] Furthermore, the washing machine using the water-sealed clutch is a non-hole washing barrel washing machine, the washing barrel body and the washing barrel bottom of the washing machine are sealed and fixed together, only the upper part of the washing barrel body near the balance ring has a circle of water-spraying holes, and the rest of the washing barrel body is a non-hole structure, and the washing barrel bottom is sealed and fixed together with the flange. When the whole machine is installed, when the flange is fixedly connected to the clutch upper sleeve, the inner side of the flange is pressed on the O-ring on the inverted steel bowl, and the two are sealed and matched.

[0020] Furthermore, a circular hole may be provided in the middle of the bottom of the outer barrel, through which the upper half of the above-mentioned water-sealing clutch may pass. The outer periphery of the circular hole at the bottom of the outer barrel is a planar structure. When the above-mentioned water-sealing clutch is installed at the bottom of the outer barrel, the sealing gasket is pressed against the end face of the cavity upper cover and the peripheral annular surface of the middle through hole at the bottom of the outer barrel, so that the two are sealed and matched.

[0021] Furthermore, a circular flange can be designed inwardly at the through hole in the middle of the outer barrel bottom to increase the strength of this place and protect this place from leakage. An external drain port is arranged outside the cavity range of the outer barrel bottom, and the external drain port can be connected to the water outlet end of the drain valve of the washing machine, or it can be drained separately. Because outside the cavity, there is no water at the bottom of the outer barrel during the washing, water intake, and drainage processes, and only during high-speed dehydration, there is water at the bottom of the outer barrel. In this way, as long as the external drain port is large enough, the thrown water flows out quickly, and no water will flow through the through hole, thereby avoiding leakage.

[0022] Furthermore, the inner drain port is communicated with the water inlet end of the drain valve through a water pipe, and is also communicated with the air chamber cavity of the water level sensor.

[0023] When water is entering, the water inlet valve enters the washing tub, then enters the cavity through the water hole, enters the water pipe from the internal drain port, and enters the air chamber cavity of the water level sensor. The water level sensor senses the water level, and the washing mode starts when the water level reaches the set water level.

[0024] After washing is finished, the machine enters the drainage mode. When draining, the drain valve is opened first. The water in the washing tub passes through the water hole, the cavity, the inner drain port, and the water pipe to the water inlet of the drain valve. Because the drain valve is open, the water is discharged. At the same time, the water level sensor can still sense the amount of water in the washing tub. After emptying, the washing machine enters the dehydration state. Part of the water in the washing tub is discharged from the inner drain port, and part of it is thrown into the outer tub from the water throwing hole on the upper part of the washing tub due to the centrifugal force, and then discharged from the outer drain port. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the water-sealed clutch of the present invention;

[0026] Figure 2 It is a schematic structural diagram of a washing machine with a water-sealed clutch according to the present invention;

[0027] Figure 3 It is a schematic diagram of the assembly structure of the water inlet structure of the washing machine of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the stainless steel sleeve of the present invention;

[0029] Figure 5 It is a schematic diagram of the water inlet structure of the water passing device of the present invention;

[0030] Figure 6 A schematic diagram of the structure of a washing machine with a water flow device according to the present invention;

[0031] Figure 7 A structure of the water passing device of the present invention;

[0032] Figure 8 This is the second structure of the water passing device of the present invention;

[0033] Fig. 9 This is the third structure of the water passing device of the present invention;

[0034] Fig.10 This is the fourth structure of the water passing device of the present invention;

[0035] Fig.11 This is a schematic diagram of an inverted steel bowl structure disclosed in the present invention;

[0036] Fig.12 A schematic diagram of a flange structure disclosed in the present invention;

[0037] Fig.13 This is a schematic diagram of a flange and a stainless steel sleeve connection structure disclosed in the present invention;

[0038] Fig.14 A schematic diagram of the structure of a deceleration clutch disclosed in the present invention;

[0039] In the figure: 1. Impeller shaft, 2. Upper shaft sleeve, 3. Inverted steel bowl, 4. Water hole, 5. Stainless steel sleeve, 501. Water ring channel, 502. Connecting ring, 6. O-ring, 7. Upper water seal, 701. First lip, 702. Outer barrel lip, 702a. Second lip, 702b. Third lip, 703. Fourth lip, 704. Upper water seal groove, 8. Cavity upper cover, 801. Cavity upper cover receiving groove, 9. Clutch large water seal, 901. Fifth lip, 10. Sealing pad, 11. Cavity lower cover, 1101. Positioning ring, 12. Inner drain port, 13. Air chamber cavity, 14. Water cavity, 15. Drain valve, 16. Balance Ring, 17. Water throwing hole, 18. Washing barrel body, 19. Outer barrel, 1901. Outer barrel bottom groove, 20. Impeller, 21. Flange, 2101. Horizontal part of flange, 2102. Concave part of flange, 2103. First connection part of flange, 2104. Second connection part of flange, 2105. Lateral drainage hole of flange, 22. Washing barrel bottom, 23. External drainage port, 24. Mounting plate, 2401. First supporting wall, 2402. Second supporting wall, 2403. Third supporting wall, 2404. Fourth supporting wall, 2405. Fifth supporting wall, 2406. Mounting plate receiving groove, A. Water passing device, B. Water inlet structure, C. Water flow cavity. DETAILED DESCRIPTION

[0040] Example 1

[0041] The water-sealed clutch is based on the traditional washing machine clutch, with an additional water-sealing system, that is, a mechanical sealing device. The specific solution is to install an inverted steel bowl 3 on the upper shaft sleeve 2 of the clutch, with several water holes 4 on the inverted steel bowl 3, and a stainless steel sleeve 5 is fixed on the inverted steel bowl 3. The two are sealed and fixed together, and can be pressed or welded. The two form a special-shaped inverted steel bowl to increase the cross-sectional area of ​​the water hole.

[0042] The cavity shell is composed of a cavity upper cover 8 and a cavity lower cover 11, which are inserted into the groove of the clutch large water seal 9 and fixedly connected to the bottom plate of the clutch mounting plate 24. An upper water seal 7 whose inner diameter matches the above-mentioned stainless steel sleeve 5 is fixed in the cavity upper cover 8. In this way, the cavity upper cover 8, the cavity lower cover 11, the upper water seal 7, the stainless steel sleeve 5, the clutch large water seal 9, the upper shaft sleeve 2, etc. form a cavity, the upper part of which has a water hole 4 communicating with the inside of the washing bucket, and the lower part of the cavity lower cover 11 is provided with an inner drain port 12, which communicates with the outside of the outer barrel 19 through the clutch mounting plate 24. There is a rotating sealing structure between the upper water seal 7 and the stainless steel sleeve 5, which ensures that the water in the washing bucket does not leak when the stainless steel sleeve 5 rotates with the upper shaft sleeve 2 and the inverted steel bowl 3.

[0043] The clutch used here can be a common deceleration clutch, or a dual-power clutch, a triple-power clutch, or other clutches; during the washing process, the washing tub can rotate or not rotate.

[0044] The inverted steel bowl 3 is a circular bowl-shaped structure, which is coaxially mounted on the upper sleeve 2. The stainless steel sleeve 5 is a round structure, which is sealed and fixed with the inverted steel bowl 3, and the annular surface of the stainless steel sleeve 5 and the upper water seal 7 is ensured to be coaxial with the upper sleeve 2. The inner diameter of the stainless steel sleeve 5 is between 40 mm and 100 mm. The diameter of the clutch upper sleeve here is 25 mm. The annular area outside the upper sleeve journal within the inner diameter of the stainless steel sleeve 5 is the water passing area. Since this is a ring-shaped structure, the water passing cross-section is more than 8 square centimeters, and impurities generally will not be blocked here, ensuring smooth water passing.

[0045] The cavity upper cover 8 and the cavity lower cover 11 are both circular structures. The cavity upper cover 8 and the cavity lower cover 11 are coaxially sealed and fixed together. A positioning structure can be designed between the two, and the flat plate welding or screws and sealing strips are used to fix the connection to ensure that there is no water leakage between the two and to ensure the coaxiality of the two. The cavity upper cover 8 has a structure for fixing the upper water seal 7, and ensures the coaxiality of the upper water seal 7 and the cavity upper cover 8. The lower end of the cavity lower cover 11 has a circle of annular ribs, which fits tightly with the groove of the clutch large water seal 9 to ensure that the cavity lower cover 11 is coaxially installed with the upper sleeve 2 to ensure the coaxiality of the two. The cavity upper cover 8 and the cavity lower cover 11 fixed together are fixedly connected to the mounting plate 24 of the clutch. Ensure the coaxiality of the upper water seal 7 and the upper sleeve 2. Then ensure the coaxiality of the stainless steel sleeve 5 and the upper water seal 7, so that it can achieve an ideal motion sealing effect. An inner drain port 12 is also provided at the lower end of the cavity lower cover 11, and a hole is provided at a corresponding position on the clutch mounting plate 24, so that the inner drain port 12 extends to the lower bottom surface of the clutch mounting plate 24. Furthermore, an O-ring 6 is provided around the outer periphery of the inverted steel bowl 3, and a sealing gasket 10 is also provided around the cavity upper cover. In this way, a mechanical sealing structure is added to the traditional clutch to form a water-sealed clutch, which is a perfect overall structure. In addition to the transmission power and switching clutch functions of the traditional washing machine clutch, it also has a motion sealing function, directly connecting the water in the washing tub to the lower end surface of the clutch mounting plate, which is the outer part of the bottom of the outer tub.

[0046] The washing machine using the water-sealed clutch is a non-hole washing barrel washing machine, in which the washing barrel body 18 and the washing barrel bottom 22 are sealed and fixedly connected together, and the washing barrel body 18 has only a circle of water-spraying holes 17 at the upper part near the balance ring 16, and the rest of the washing barrel body is a non-hole structure, and the washing barrel bottom 22 is sealed and fixedly connected with the flange 21. When the whole machine is installed, when the flange 21 is fixedly connected with the upper shaft sleeve 2, the inner side surface of the flange 21 is pressed on the O-ring on the inverted steel bowl 3, and the two are sealed and matched.

[0047] A circular hole may be provided in the middle of the bottom of the outer barrel 19, and the diameter may allow the upper half of the water-sealing clutch to pass through. The outer periphery of the circular hole at the bottom of the outer barrel 19 is a plane structure. When the water-sealing clutch is installed at the bottom of the outer barrel 19, the sealing gasket 10 is pressed on the end surface of the cavity upper cover 8 and the peripheral annular surface of the middle through hole at the bottom of the outer barrel 19, so that the two are sealed. A circular flange may be designed inwardly at the middle through hole at the bottom of the outer barrel 19 to increase the strength of this place and protect this place from leakage.

[0048] An external drain port 23 is provided outside the bottom cavity of the outer tub 19, and the external drain port 23 can be connected to the water outlet of the drain valve 15 of the washing machine, or can be used for drainage alone. Because outside the bottom cavity of the outer tub 19, there is no water during washing, water inlet, drainage, etc., and only during high-speed dehydration, there is water at the bottom of the outer tub. In this way, as long as the external drain port is large enough, the thrown water flows out quickly, and no water flows through the through hole, thereby avoiding water leakage here.

[0049] The inner drain port 12 is connected to the water inlet end of the drain valve 15 through the water pipe 14, and is also connected to the air chamber 13 of the water level sensor. When water is inlet, the water inlet valve enters the water, and the water flows into the washing tub, then enters the cavity through the water hole 4, enters the water pipe 14 from the inner drain port 12, and enters the air chamber 13 of the water level sensor. The water level sensor senses the water level, and the washing mode starts when the water level reaches the set water level. When washing is finished, the water drainage mode is entered. When draining, the drain valve is opened first, and the water in the washing tub passes through the water hole 4, the cavity, the inner drain port 12, and the water pipe 14 to the water inlet of the drain valve 15. Because the drain valve 15 is in the open state, the water is discharged. At the same time, the water level sensor 13 can still sense the amount of water in the washing tub. When it is emptied, the washing machine enters the dehydration state. Part of the water in the washing tub is discharged from the inner drain port 12, and part of the water is thrown out from the water throwing hole 17 on the upper part of the washing tub body into the outer tub 19 due to the action of centrifugal force, and then discharged from the outer drain port 23.

[0050] In this case, the specific implementation effect can effectively improve the coaxiality of the stainless steel sleeve 2 of the mechanical seal and the upper water seal 7, greatly improving the service life and water sealing effect of the upper water seal 7. The special-shaped inverted steel bowl composed of the inverted steel bowl 3 and the stainless steel sleeve 5 can greatly increase the cross-sectional area of ​​the water hole to prevent impurities from clogging here. At the same time, the mechanical seal structure is designed on the deceleration clutch, with an integrated design. When installing the whole machine, there is no need to install the inverted steel bowl and the cavity cover separately, especially solving the problem of difficult operation when the cavity cover is installed on the inner side of the bottom of the outer barrel.

[0051] Embodiment 2:

[0052] In the prior art, the fixed connection between the clutch upper sleeve and the washing barrel body 18 is either directly integrated, or the clutch upper sleeve is directly fixed to the washing barrel bottom 22, but more often a flange 21 is set on the washing barrel bottom 22 for fixing strength considerations, and the clutch upper sleeve and the flange 21 are fixed. The fixing part of the clutch upper sleeve and the flange 21 is usually adopted in that: the position where the clutch upper sleeve and the flange are fixed is usually located on the horizontal plane of the washing barrel bottom 22. In this case, no matter what, it is impossible to find a place for the water flow passage of the washing barrel body 18, unless, as described in the background technology, the water hole is restricted by the diameter of the clutch upper sleeve and the flange or the connecting piece, resulting in poor water flow. In the prior art, although there is also a concave portion formed on the washing barrel bottom 22, these practices are designed for other purposes. One of the most important structural designs of the present invention is to fix the upper sleeve of the clutch and the washing barrel body 18 to either be higher than the bottom 22 of the washing barrel or lower than the bottom 22 of the washing barrel, so that the side formed by the height difference has sufficient drainage and water flow space, and / or the diameter of the fixed connection between the upper sleeve of the clutch and the water inlet structure B is smaller than the diameter of the inner wall of the water inlet structure B.

[0053] Specifically, Figure 3-6 As shown, the present invention discloses a washing machine structure, including an outer barrel 19, a washing barrel body 18, a flange and a deceleration clutch, the washing barrel body 18 is fixedly connected to the upper shaft sleeve 2, the impeller 20 is fixedly connected to the impeller shaft 1, a water passing device A is arranged on the upper part of the deceleration clutch, the water passing device A refers to a water flow device arranged below the washing barrel body 18, no drainage hole is arranged at the lower part of the washing barrel body 18, the washing water in the washing barrel body 18 flows to the water passing device A and then flows to the drainage structure of the washing machine, the water passing device is connected to the washing barrel body 18 through the water inlet structure B, a stainless steel sleeve 5 is arranged below the flange 21, the stainless steel A downward connecting ring 502 is formed on the lower surface in the middle of the sleeve 5. The fixed position of the washing barrel body 18 and the upper shaft sleeve of the clutch is higher than the upper plane of the bottom of the washing barrel body 18. The water inlet structure forms a lateral water inlet hole above the bottom of the washing barrel body 18. The function of the lateral water inlet hole here is the same as that of the water through hole 4, both of which are to flow the washing water in the washing barrel body 18 to the water flow device A. A stainless steel sleeve 5 channel is formed between the inner wall of the connecting ring 502 and the upper shaft sleeve 2. The stainless steel sleeve 5 channel is connected to the water flow chamber C of the water flow device. An internal drain port 12 is arranged on the water flow device A, and the internal drain port 12 is connected to the drainage structure of the washing machine.

[0054] Embodiment 3:

[0055] like Figure 4 and 7As shown, as an embodiment of the present invention, a water flow device A is disclosed, the water flow device A comprises a cavity upper cover 8 and a cavity lower cover 11, a cavity upper cover receiving groove 801 is arranged on the cavity upper cover 8, the cavity upper cover receiving groove 801 is configured to position and place an upper water seal 7, the upper water seal 7 and the cavity upper cover 8 are two independent parts, a first lip 701 is arranged on the other side of the upper water seal 7, the first lip 701 is matched with a connecting ring 502 arranged on a stainless steel sleeve 5 for sliding sealing, the stainless steel sleeve 5 is fixedly connected to the flange 21, the connecting ring 502 is formed on the lower surface in the middle of the stainless steel sleeve 5 to prevent the washing water in the water flow device A from overflowing, the cavity upper cover 8 is hollow and connected to the cavity lower cover 11 provided with an inner drain port 12, the The inner drain port 12 is arranged at the lowest point of the water flow device A, and a positioning ring 1101 matched with the deceleration clutch is provided on the lower surface in the middle of the cavity lower cover 11, and a clutch large water seal 9 is arranged between the cavity lower cover 11, the positioning ring 1101, and the deceleration clutch. The clutch large water seal 9 refers to the seal arranged between the clutch upper sleeve and the clutch in the prior art. The cavity upper cover 8 and the cavity lower cover 11 are fixed by detachable connection methods such as riveting, bolting, clamping, plugging, bolt connection, hooking, etc. The cavity upper cover 8 can be arranged between the washing barrel 18 and the outer barrel 19, and can also be arranged at the bottom of the outer barrel 19 of the washing machine. This arrangement facilitates the assembly of the water flow device and the washing machine, reduces the changes to the washing machine, and thus improves the applicability of the water flow device.

[0056] Embodiment 4:

[0057] like Figure 8 As shown, as an embodiment of the present invention, a water passing device is disclosed. Compared with embodiment 3, Figure 7 The cavity upper cover 8 and the upper water seal 7 of the water passing device A shown in the figure are made of the same plastic material. Figure 8 The upper water seal 7 in the Figure 7The function of the hollow cavity upper cover 8 is that the upper water seal 7 is hollow and connected to the cavity lower cover 11 provided with an internal drain port 12, and a space for a water flow cavity of a water passing device is formed between the upper water seal 7 and the cavity lower cover 11. A positioning ring 1101 adapted to the deceleration clutch is provided on the lower surface in the middle of the cavity lower cover 11, and the upper water seal 7 and the cavity lower cover 11 are fixed by detachable connection methods such as riveting, bolting, clamping, plugging, bolting, and hooking. The difference between this scheme and Example 2 is that the upper water seal 7 directly replaces the functions of the original upper water seal 7 and the cavity upper cover 8. The upper water seal is squeezed and fixed by the connecting ring 502 at the bottom of the outer barrel 19 and the stainless steel sleeve 5. The upper water seal 7 is provided with a first lip 701 at the sliding sealing position with the connecting ring 502. The first lip 701 provided on the upper water seal 7 is configured to seal the washing water entering the water passing device A through the water inlet structure B. The water inlet structure B is configured to flow the washing water in the washing barrel body 18 into the water passing device A, thereby reducing the overflow of the washing water. The upper water seal 7 is provided with an outer barrel lip 702 at the connection with the lower surface of the bottom of the outer barrel 19. The upper water seal 7 and / or the cavity lower cover 11 of device A limit the horizontal displacement of the water flow device A by the limiting portion provided on the mounting plate 24. More preferably, a fourth lip 703 is provided at the position where the water flow device A is in sealing contact with the limiting portion on the mounting plate 24. This arrangement reduces the molding and assembly of the cavity upper cover 8 parts. At this time, the water flow device A only has the cavity lower cover 11, and the water flow cavity C is formed by the upper shaft sleeve 2, the upper water seal 7, the clutch large water seal 9, and the cavity lower cover 11. The water flow device A is supported and positioned by the connecting ring 502, the mounting plate 24, and the outer barrel 19, which reduces the possibility of overflow of washing water and ensures the sealing of the entire water flow device and the washing machine.

[0058] Embodiment 5:

[0059] like Fig. 9As shown, as an embodiment of the present invention, a water passing device is disclosed. Compared with Example 4, by improving the structure of the mounting plate 24, the mounting plate 24 is used to realize the function of the cavity lower cover 11, and the setting of the cavity lower cover 11 is cancelled. The water flow cavity C of the water passing device A is composed of an upper water seal 7, a mounting plate 24, a clutch large water seal 9, and a deceleration clutch, wherein the upper water seal 7 is supported and fixed by the bottom of the outer barrel 19, the mounting plate 24, and the water inlet structure B. The upper water seal 7 is arranged in a step shape, wherein the inner side of the upper water seal 7 is horizontally limited by the water inlet structure B, the upper part of the upper water seal 7 is slidably sealed with the connecting ring 502 of the water inlet structure, and a first lip 701 is arranged at the contact position between the upper water seal 7 and the connecting ring 502. The first lip 701 is configured to seal the washing water entering the water flow device through the water inlet structure, thereby reducing the overflow of the washing water. The upper water seal 7 is provided with an outer barrel lip 702 at the contact connection with the outer barrel 19. The contact connection of the upper water seal 7 with the outer barrel 19 generally refers to the contact between the upper water seal 7 and the lower surface / outer surface of the bottom of the outer barrel 19, or there is also a lateral connection contact between the upper water seal 7 and the outer barrel 19. The portion of the upper water seal 7 where the outer barrel lip 702 is provided is assembled in coordination with the corresponding contact portion of the outer barrel 19. The outer barrel 19 is configured to limit the upper water seal 7 in the vertical direction or to limit the upper water seal 7 in the vertical and horizontal directions. The upper water seal 7 of the water flow device A is limited by the limiting portion provided on the deceleration clutch mounting plate 24. To realize the positioning, support and coordination of the upper water seal 7 to form the water flow cavity C of the water passing device A, in the embodiment described in the present invention, the limiting portion includes a first supporting wall 2401, a second supporting wall 2402, a third supporting wall 2403 and a fourth supporting wall 2404, the first supporting wall 2401 is arranged close to the bottom of the outer barrel 19, the end of the first supporting wall 2401 is connected to the second supporting wall 2402, the second supporting wall 2402 is configured to support the bottom of the outer barrel 19, preferably, the second supporting wall 2402 is arranged horizontally, and the third supporting wall 2403 is arranged at the other end of the second supporting wall 2402, the third supporting wall 2403 is arranged in a direction away from the bottom of the outer barrel 19, and the third supporting wall 2403 is configured In order to limit the horizontal direction of the water-passing device A, the vertical cross-sections of the first supporting wall 2401, the second supporting wall 2402, and the third supporting wall 2403 are approximately arranged in a "J" shape from the side away from the upper sleeve 2 to the side close to the upper sleeve 2. As some embodiments of the present invention, the first supporting wall 2401 and the third supporting wall 2403 are arranged in a vertical direction, and the fourth supporting wall 2404 is arranged at the other end of the third connecting wall 2403. The fourth supporting wall 2404 replaces the cavity lower cover 11 and forms a receiving space for the water flow cavity C with the upper water seal 7. The fourth supporting wall 2404 is connected to the fifth supporting wall 2405 at the other end. The fifth supporting wall 2405 is provided with a mounting plate receiving groove 2406 on the side close to the upper sleeve 2.The height of the mounting plate accommodating groove 2406 is lower than the height of the upper plane of the fourth connecting wall 2404. The mounting plate accommodating groove 2406 is configured to assemble a large clutch water seal 9. The large clutch water seal 9 refers to the seal arranged between the upper sleeve 2 and the clutch in the prior art. A fifth lip 901 is arranged on the other side of the large clutch water seal 9. The fifth lip 901 is in contact with the deceleration clutch. The inner drain port 12 is arranged between the third support wall and the mounting plate accommodating groove 2406. Preferably, the inner drain port 12 is arranged at the lowest point of the fourth support wall. The outer barrel lip 702 may include a vertical second lip 702a and / or a horizontal third lip 702b. The outer side of the upper water seal 7 is horizontally limited by the third support wall of the limiting part. The fourth lip 703 is arranged at the contact position between the upper water seal 7 and the third support wall 2403. On the one hand, this arrangement reduces the number of parts. At this time, the water flow cavity C is directly formed by using the mounting plate 24, the upper sleeve 2, the upper water seal 7, and the clutch large water seal 9. The water flow device A is supported and positioned by the connecting ring 502, the mounting plate 24, and the outer barrel 19, which reduces the probability of washing water overflow. On the other hand, it also increases the accommodation space of the water flow device and minimizes the change in the original structural height of the washing machine due to the installation of the water flow device.

[0060] Embodiment 6:

[0061] like Fig.10 As shown, as an embodiment of the present invention, a water passing device is disclosed. Compared with Example 5, a bottom groove 1901 of the outer barrel is provided at the end of the outer barrel 19 close to the upper water seal 7, and the bottom groove 1901 of the outer barrel is recessed toward the side close to the washing barrel body 18. The bottom of the outer barrel 19 and the limiting portion of the deceleration clutch mounting plate 24 form a stepped accommodating space. The upper water seal 7 of the water passing device A is arranged in a stepped shape, and the bottom groove 1901 of the outer barrel cooperates with the upper water seal 7 for positioning and fixing, and a lip of the outer barrel is provided at the contact position between the lower surface / outer surface of the bottom of the outer barrel 19 and the upper water seal 7. Mouth 702; in addition, the groove 1901 at the bottom of the outer barrel is also arranged in a step shape, and the upper surface of the upper water seal 7 is also arranged below the groove 1901 at the bottom of the outer barrel, so that the water flow device A is completely in the space formed by the bottom of the outer barrel 19 and the mounting plate 24, and the mounting plate 24 is directly fixedly connected to the bottom of the outer barrel 19. This arrangement reduces the axial height of the inner and outer barrels of the washing machine, improves the connection stability of the inner drum during washing and drying, and also improves the stability of the washing machine when in use. At the same time, on the other hand, it also improves the sealing of the assembly of the bottom of the outer barrel and the water flow device to avoid overflow of washing water.

[0062] Embodiment 7:

[0063] As shown Fig.11As shown, as an embodiment of the present invention, the water inlet structure B of the water flow device A is an inverted steel bowl 3, and an upper sleeve fixing portion is arranged on the upper sleeve 2, and the upper sleeve fixing portion is arranged on the outer side of the clutch upper sleeve, the inverted steel bowl 3 is fixedly connected to the flange 21 and the upper sleeve fixing portion, and the position where the inverted steel bowl 3 is fixedly connected to the upper sleeve fixing portion is higher than the position where the inverted steel bowl 3 is connected to the flange 21, so that an inclined water hole 4 is formed on the inverted steel bowl 3, and a stainless steel sleeve 5 is arranged below the inverted steel bowl 3, and a downward connecting ring 502 is formed on the lower surface in the middle of the stainless steel sleeve 5, and the outer surface of the connecting ring 502 is slidingly sealed with the first lip 701 of the water flow device A, and a water flow ring channel 501 is formed between the connecting ring 502 and the clutch upper sleeve, and the washing water flows into the water flow ring channel 501 through the lateral water hole 4 of the inverted steel bowl 3, and then flows into the water flow chamber C of the water flow device A. This arrangement greatly increases the water inlet area of ​​the water inlet structure B of the water flow device A by means of the inclined water through hole 4 provided on the inverted steel bowl 3. On the premise of satisfying the connection strength between the water flow device A and the flange 21, the washing barrel body 18 and the upper shaft sleeve 2, the circulation efficiency of the washing water is improved, and it is avoided that hair or washing materials clog the water inlet structure of the water flow device during use, thereby affecting the normal use of the washing machine. Moreover, under this scheme, the contact surface between the connecting ring 502 and the water flow device A is small, so that sealing can be achieved through a smaller upper water seal 7, thereby reducing the possibility of overflow of the washing water.

[0064] Preferably, the water holes 4 described here can be arranged in a right angle, arc shape, or oblique line shape, and the washing water can enter from the side of the inverted steel bowl 3 or from the top surface and side of the inverted steel bowl 3.

[0065] Preferably, the inverted steel bowl 3 and the flange 21, and the inverted steel bowl 3 and the stainless steel sleeve 5 are all connected by bolts. The bolt holes connecting the inverted steel bowl 3 and the flange, and the bolt holes connecting the inverted steel bowl 3 and the stainless steel sleeve 5 can be shared or used differently. The different use here means that the inverted steel bowl 3 is fixedly connected to the stainless steel sleeve 5 and the flange using different bolt holes, respectively.

[0066] Embodiment 8:

[0067] like Fig.12As shown, as an embodiment of the present invention, a flange structure is disclosed, wherein the flange 21 is fixedly connected to the bottom of the washing barrel body 18, and the flange 21 forms a flange groove near the upper shaft sleeve 2, and the flange 21 includes a flange horizontal portion 2101 and a flange recessed portion 2102. The flange groove is upwardly arranged in a direction away from the outer barrel 19, and a flange first connection portion 2103 is formed at the top of the flange groove, and the flange first connection portion 2103 is configured to be fixedly connected to the upper shaft sleeve 2, and the washing shaft passes through the flange first connection portion 2103. The flange 21 forms a flange second connection portion 2104 near the flange groove, and the flange second connection portion 2104 is formed at the flange horizontal portion 2101, and the flange second connection portion 2104 is configured to be fixedly connected to the upper shaft sleeve 2. The stainless steel sleeve 5 is fixedly connected to the first flange connection part 2103, the height of the first flange connection part 2103 is higher than the height of the second flange connection part 2104, the first flange connection part 2103 and the second flange connection part 2104 form a height difference, a flange lateral drainage hole 2105 is arranged between the first flange connection part 2103 and the second flange connection part 2104, a downward connecting ring 502 is formed on the lower surface in the middle of the stainless steel sleeve 5, a water ring channel 501 is formed between the connecting ring 502 and the upper shaft sleeve 2, the washing water in the washing barrel body 18 flows to the water ring channel 501 through the flange lateral drainage hole 2105, and then flows to the water passing device A, the connecting ring 502 and the upper water seal 7 of the water passing device A are slidably sealed, and a first lip is arranged at the contact connection between the connecting ring 502 and the upper water seal 7. This arrangement changes the flange structure, and the flange lateral drainage hole greatly increases the water inlet of the water passing device under the premise of ensuring the flange connection strength.

[0068] Preferably, the flange lateral drainage hole 2105 here can be set in a right angle, arc shape, or oblique line shape, and the washing water can enter from the side of the flange 21 or from the top surface and side of the flange 21.

[0069] Embodiment 9:

[0070] like Fig.13As shown, as an embodiment of the present invention, a connection structure between a flange and a stainless steel sleeve 5 is disclosed. Compared with Example 8, an inverted steel bowl 3 is arranged between the flange 21 and the stainless steel sleeve 5. The fixing method of the inverted steel bowl 3, the flange 21, the stainless steel sleeve 5 and the upper shaft sleeve 2 is the same as the water inlet structure of the water-passing device disclosed in Example 7. With this fixing method, the flange may only include a flange horizontal portion 2101, and a flange second connection portion 2104 connected to the inverted steel bowl 3 and the stainless steel sleeve 5 is arranged on the flange horizontal portion 2101; the flange 21 may also include a flange horizontal portion 2101 and a flange recessed portion 2102 at the same time, and the flange recessed portion 2102 and the inverted steel bowl 3 are arranged in coordination. This arrangement further improves the applicability of the assembly of the water-passing device and the washing machine drum on the premise of increasing the water inlet area of ​​the water-passing device.

[0071] Embodiment 10:

[0072] like Figure 1-14As shown, as an embodiment of the present invention, a deceleration clutch structure is disclosed, the water-passing device A described in embodiments 2 to 6 is arranged on the upper side of the deceleration clutch mounting plate 24, or the water flow chamber C of the water-passing device A is formed by the upper plane of the deceleration clutch mounting plate 24 or the upper plane of the deceleration clutch mounting plate 24 and the side plane close to the upper shaft sleeve 2 in the vertical direction, the water-passing device A includes an upper water seal 7 fixed on the deceleration clutch, and a stainless steel sleeve 5 is connected to the bottom of the flange 21, the stainless steel sleeve 5 can be fixedly connected to the upper shaft sleeve 2, the stainless steel sleeve 5 can also be fixedly connected to the flange 21, or the stainless steel sleeve 5 is fixedly connected to the upper shaft sleeve 2 and the flange 21 at the same time, and the stainless steel sleeve 5 is in the middle of the stainless steel sleeve 5. A downward connecting ring 502 is formed on the lower surface, and an upper water seal groove 704 is arranged on the upper surface of the upper water seal 7. The upper water seal groove 704 is inserted into the ring around the water passing device A. The upper water seal 7 is close to the side of the upper sleeve 2 and is slidingly sealed with the outer wall of the connecting ring 502. The upper water seal 7 is provided with a first lip 701 at the contact point with the connecting ring 502, and the middle part of the outer barrel bottom is directly pressed on the upper water seal 7 or the outer barrel bottom groove 1901 arranged on the outer barrel 19 is pressed on the upper water seal 7. The upper water seal 7 is provided with an outer barrel lip 702 at the position where the upper water seal 7 is connected to the lower surface / outer surface of the outer barrel bottom, which plays a sealing role. An inner drain port 12 is provided on the deceleration clutch mounting plate 24 or the inner drain port 12 is directly formed. Compared with the prior art, the technical solution increases the length of the upper sleeve 2, and sets the main body of the water flow device A between the bottom of the outer barrel and the deceleration clutch mounting plate 24, avoiding the adjustment of the height between the washing barrel body 18 and the outer barrel 19, greatly improving the applicability of the deceleration clutch in the existing washing machine. Compared with the existing structure of setting the water flow device A, the axial height between the washing barrel body 18 and the outer barrel 19 is greatly reduced, ensuring the stability of the washing machine during the washing process, and also improving the coaxiality of the water flow device A and the upper sleeve of the deceleration clutch, ensuring the sealing of the assembly of the water flow device A.

[0073] Furthermore, the deceleration clutch also includes a form in which a space is reserved on the deceleration clutch for installing the water flow device A. The deceleration clutch and the water flow device A are separately arranged and installed, and are assembled when the whole machine is assembled.

[0074] In the embodiment described in the present invention, the first lip 701, the outer barrel lip 702, the second lip 702a, the third lip 702b, the fourth lip 704 and the fifth lip 901 only need to be sealed and connected to prevent the washing water from overflowing. The sealing part can be a sealing smooth surface, and the sealing position can be formed by interference fit contact or compression.

[0075] The stainless steel sleeve 5 and the inverted steel bowl 3 may also be made of other materials, such as copper, iron, alloy, synthetic plastic and other hard materials, which are prior arts and will not be described in detail.

[0076] It should be pointed out that, for those skilled in the art, several improvements and modifications may be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A water-sealed clutch, wherein the clutch is based on a traditional clutch, and a water flow device A is arranged on the upper part thereof, the water flow device A refers to a water flow device arranged below a washing barrel body, and no drainage hole is arranged at the lower part of the washing barrel body. The washing water in the washing barrel body flows to the water flow device A and then flows to the drainage structure of the washing machine. The water flow device is connected to the washing barrel body through a water inlet structure B, and the bottom of the washing barrel is sealed and fixed together with a flange. A stainless steel sleeve is arranged below the flange, and the stainless steel sleeve is fixedly connected to the flange. The water inlet structure B of the water flow device A is an inverted steel bowl, and an upper sleeve fixing part is arranged on the upper sleeve, and the upper sleeve fixing part is arranged on the outer side of the clutch upper sleeve, and the inverted steel bowl is fixedly connected to the flange and the upper sleeve fixing part, and the position where the inverted steel bowl is fixedly connected to the upper sleeve fixing part is higher than the inverted steel bowl and the flange. The position of the flange connection forms an inclined water hole on the inverted steel bowl. The inclined water hole on the inverted steel bowl greatly increases the water inlet area of ​​the water inlet structure B of the water flow device A. A stainless steel sleeve is arranged below the inverted steel bowl. The lower surface in the middle of the stainless steel sleeve forms a downward connecting ring. The fixed position of the washing barrel body and the upper shaft sleeve of the clutch is higher than the upper plane of the bottom of the washing barrel body. The water inlet structure forms a lateral water inlet hole above the bottom of the washing barrel body to flow the washing water in the washing barrel body to the water flow device A. A stainless steel sleeve channel is formed between the inner wall of the connecting ring and the upper shaft sleeve. The stainless steel sleeve channel is connected to the water flow chamber C of the water flow device. When the stainless steel sleeve rotates with the upper shaft sleeve, the water in the washing barrel does not leak. An internal drain outlet is arranged on the water flow device A, and the internal drain outlet is connected to the drainage structure of the washing machine.

2. The water-sealed clutch according to claim 1, characterized in that: The water flow device A comprises a cavity upper cover and a cavity lower cover. A cavity upper cover receiving groove is provided on the cavity upper cover. The cavity upper cover receiving groove is configured to position and place an upper water seal. The upper water seal and the cavity upper cover are two independent components.

3. The water-sealed clutch according to claim 2, characterized in that: The cavity upper cover is hollow and connected to the cavity lower cover provided with an inner drain port. The inner drain port is arranged at the lowest point of the water passing device A. A positioning ring matched with the deceleration clutch is arranged on the lower surface in the middle of the cavity lower cover. A clutch large water seal is arranged between the cavity lower cover, the positioning ring and the deceleration clutch.

4. The water-sealed clutch according to claim 1, characterized in that: The water flow device A comprises an upper water seal and a cavity lower cover. The upper water seal is hollow and connected to the cavity lower cover provided with an inner drain port. A space of a water flow cavity of the water flow device is formed between the upper water seal and the cavity lower cover.

5. The water-sealed clutch according to claim 1, characterized in that: The water flow chamber C of the water flow device A is composed of an upper water seal, a mounting plate, a clutch large water seal, and a deceleration clutch, wherein the upper water seal is supported and fixed by the bottom of the outer barrel, the mounting plate, and the water inlet structure B, and the upper water seal is arranged in a step shape, wherein the inner side of the upper water seal is horizontally limited by the water inlet structure B, the upper part of the upper water seal is slidingly sealed with the connecting ring of the water inlet structure, and a first lip is arranged at the contact position between the upper water seal and the connecting ring, and the first lip is configured to seal the washing water entering the water flow device through the water inlet structure, and the upper water seal is provided with an outer barrel lip at the contact connection with the outer barrel.

6. The water-sealed clutch according to claim 4, characterized in that: The upper water seal and / or the lower cavity cover of the water passing device A limit the horizontal displacement of the water passing device A through the limiting part arranged on the mounting plate of the clutch.

7. The water-sealed clutch according to any one of claims 4 to 6, characterized in that: The upper water seal is provided with a first lip at a sliding sealing position with the connecting ring. The first lip provided on the upper water seal is configured to seal the washing water entering the water passing device A through the water inlet structure B.

8. The water-sealed clutch according to claim 5, characterized in that: A groove at the bottom of the outer barrel is arranged at the end of the outer barrel near the upper water seal, and the groove at the bottom of the outer barrel is recessed toward the side close to the washing barrel body, and the limiting portion of the bottom of the outer barrel and the deceleration clutch mounting plate forms a stepped accommodating space, and the upper water seal of the water passing device A is arranged in a stepped shape, and the groove at the bottom of the outer barrel cooperates with the upper water seal for positioning and fixing, and a lip of the outer barrel is arranged at the contact position between the lower surface / outer surface of the bottom of the outer barrel and the upper water seal; in addition, the groove at the bottom of the outer barrel is also arranged in a stepped shape, and the upper surface of the upper water seal is also arranged below the groove at the bottom of the outer barrel, so that the water passing device A is completely located in the space formed by the bottom of the outer barrel and the mounting plate, and the mounting plate is directly fixed to the bottom of the outer barrel.

9. The water-sealed clutch according to claim 1, characterized in that: The water holes are arranged in a right angle, an arc or an oblique line, and the washing water enters from the side of the inverted steel bowl or from the top surface and the side of the inverted steel bowl.

10. The water-sealed clutch according to claim 9, characterized in that: The flange is fixedly connected to the bottom of the washing barrel body, and a flange groove is formed on the flange near the upper sleeve. The flange includes a flange horizontal portion and a flange recessed portion. The flange groove is upwardly arranged in a direction away from the outer barrel, and a flange first connection portion is formed on the top of the flange groove. The flange first connection portion is configured to be fixedly connected to the upper sleeve, and the washing shaft passes through the flange first connection portion. The flange forms a flange second connection portion at a position close to the flange groove. The flange second connection portion is formed in the flange horizontal portion, and the flange second connection portion is configured to be fixedly connected to the stainless steel sleeve. The height of the flange first connection portion is higher than the height of the flange second connection portion, and a height difference is formed between the flange first connection portion and the flange second connection portion. A flange lateral drainage hole is provided between the flange first connection portion and the flange second connection portion, and a water ring channel is formed between the connecting ring and the upper sleeve. The washing water in the washing barrel body flows to the water ring channel through the flange lateral drainage hole, and then flows to the water flow cavity C of the water flow device A.

11. The water-sealed clutch according to claim 9, characterized in that: An inverted steel bowl is arranged between the flange and the stainless steel sleeve.

12. The water-sealed clutch according to claim 9, characterized in that: The clutch is a common deceleration clutch, or a dual-power clutch, or a triple-power clutch; during the washing process, the washing tub may rotate or may not rotate.

13. The water-sealed clutch according to claim 9, characterized in that: The inverted steel bowl is a circular bowl-shaped structure, which is coaxially installed on the clutch upper sleeve. The stainless steel sleeve is a circular structure, and the annular surface of the stainless steel sleeve and the water seal is ensured to be coaxially installed with the clutch upper sleeve. The inner diameter of the stainless steel sleeve is between 40 mm and 100 mm.

14. The water-sealed clutch according to claim 2 or 3, characterized in that: The cavity upper cover and the cavity lower cover are both circular structures. The cavity upper cover and the cavity lower cover are coaxially sealed and fixed together. Welding or screw fixing methods ensure that there is no water leakage between the two and that the coaxiality of the two is ensured. The cavity upper cover has a structure for fixing the upper water seal and ensures the coaxiality of the upper water seal and the cavity upper cover. The lower end of the cavity lower cover has a circle of annular ribs, which fits tightly with the groove of the large water seal of the clutch to ensure that the cavity lower cover and the upper shaft sleeve of the clutch are coaxially installed to ensure the coaxiality of the two. The cavity upper cover and the cavity lower cover fixed together are fixedly connected to the mounting plate of the clutch to ensure the coaxiality of the upper water seal and the upper shaft sleeve.

15. The water-sealed clutch according to claim 9, characterized in that: The water through holes on the inverted steel bowl are lateral through holes, and the total cross-sectional area is greater than 8 square centimeters.

16. The water-sealed clutch according to claim 2 or 3, characterized in that: The lower end of the cavity lower cover is also provided with an inner drainage port, and a hole is opened at a corresponding position on the clutch mounting plate so that the inner drainage port extends to the lower bottom surface of the clutch mounting plate.

17. The water-sealed clutch according to claim 9, characterized in that: There is an O-ring around the outside of the inverted steel bowl, and there is also a sealing gasket around the cavity cover.

18. A washing machine, characterized in that: A water-sealed clutch as described in any one of claims 1 to 17 is used, wherein the washing machine is a hole-free washing barrel washing machine, the washing barrel body and the washing barrel bottom of the washing machine are sealed and fixed together, only the upper part of the washing barrel body near the balance ring has a circle of water-spraying holes, and the other places are hole-free structures, the washing barrel bottom and the flange are sealed and fixed together, when the whole machine is installed, when the flange is fixedly connected to the clutch upper sleeve, the inner surface of the flange is pressed on the O-ring on the inverted steel bowl, and the two are sealed together.

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