A water diversion structure for clutch leakage of washing machine

Abstract

The invention discloses a water leakage diversion structure for a washing machine clutch, comprising an upper support formed with an upper support hole and a pulsator shaft inserted in a dehydration shaft, a small sealing ring is installed at the shaft opening of the dehydration shaft, and the upper support hole is composed of a large sealing ring hole and a bearing mounting hole; a rolling bearing matched with a rotating support sleeve of the dehydration shaft is installed in the bearing mounting hole, and a large sealing ring matched with a sealing sleeve of the dehydration shaft is installed in the large sealing ring hole; a reinforced sealing ring is pressed at the bottom of the large sealing ring located inside the large sealing ring in the large sealing ring hole, the main sealing lip of the reinforced sealing ring is fitted with the dehydration shaft seal, the bottom surface of the sealing lip at the bottom of the reinforced sealing ring is sealed with the top surface of the outer ring of the rolling bearing, and at least one diversion channel for discharging water leaking into the large sealing ring and the reinforced sealing ring is opened on the large sealing ring hole, and the diversion channel is connected with a diversion component. The invention is reasonably designed, economical and practical, and easy to implement, and can effectively guide the leaked water to ensure the service life of the clutch as a whole.

Description

Technical Field

[0001] The invention relates to the technical field of washing machine manufacturing, in particular to a water leakage prevention structure capable of preventing water leakage from a washing machine clutch, specifically a water leakage diversion structure for a washing machine clutch. Background Art

[0002] Whether the existing washing machine adopts a common clutch structure, a bionic hand-rubbing structure, or a dual-power motor and clutch structure, its overall structural design well guarantees the overall performance and service life of the washing machine. Since the seal between the water tub and the clutch of the existing washing machine is completed by a large sealing ring and a small sealing ring, after a period of use, due to the wear of the sealing ring or the shaft surface, water seepage or leakage often occurs, causing the clutch bearing to rust, lock or fail, and increase the noise during the dehydration operation of the whole machine. In severe cases, the bearing cannot rotate due to rust, which easily causes the operation failure of the washing machine, affects the normal use of the washing machine, and greatly reduces the service life of the washing machine. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a washing machine clutch leakage diversion structure with a simple structure, easy installation, and the ability to effectively drain the generated leakage water, protect the key components of the clutch and the performance of the whole machine, and reduce the return rate of the washing machine market.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A water leakage diversion structure for a washing machine clutch comprises an upper support formed with an upper support hole and a pulsator shaft rotatably inserted into the shaft hole of a dehydration shaft, a small sealing ring is installed at the end of the shaft hole of the dehydration shaft, and the upper support hole is composed of a large sealing ring hole and a bearing mounting hole connected up and down; a rolling bearing matched with a rotating support of the dehydration shaft is positioned and installed in the bearing mounting hole, and a large sealing ring matched with a sealing sleeve of the dehydration shaft is installed in the large sealing ring hole; a reinforced sealing ring for preventing water leaking from the large sealing ring from entering the rolling bearing is pressed at the bottom of the large sealing ring hole located inside the large sealing ring, the main sealing lip of the reinforced sealing ring is sealed with the outer circumferential surface of the dehydration shaft, the bottom surface of the bottom sealing lip of the reinforced sealing ring is pressed and sealed with the top surface of the outer ring of the rolling bearing, at least one diversion channel for discharging water leaking between the large sealing ring and the reinforced sealing ring is opened on the large sealing ring hole, and the diversion channel is connected with a diversion component for guiding the discharged water to the outside of the clutch body.

[0006] To optimize the above technical solutions, the specific measures taken also include:

[0007] The above-mentioned upper support hole is composed of an upwardly protruding through hole formed on the top surface of the upper support. The diameter of the bearing mounting hole is slightly larger than the diameter of the large sealing ring hole. A reduced diameter transition section is formed between the large sealing ring hole and the bearing mounting hole, and the guide channel is formed on the peripheral surface of the reduced diameter transition section.

[0008] The above-mentioned large sealing ring positioning card is installed in the large sealing ring hole. The large sealing ring is formed with a sealing card groove with an opening downward for cooperating with a sealing card sleeve around the hole of the large sealing ring.

[0009] The above-mentioned upper support hole is composed of a downwardly recessed step hole formed on the top surface of the upper support. The diameter of the large sealing ring hole is larger than the diameter of the bearing mounting hole. The bottom of the large sealing ring hole forms an annular step surface of the step hole, and the guide channel is formed downwardly on the annular step surface.

[0010] The large sealing ring is positioned and installed in the large sealing ring hole, and the outer peripheral surface of the large sealing ring is matched with the inner wall of the large sealing ring hole in a water-tight manner.

[0011] The outer peripheral surface of the above-mentioned bearing mounting hole is fixedly sleeved with a water receiving ring, and the water receiving ring is formed with an annular water storage groove for receiving water flowing out of the diversion channel. The height of the inner ring edge of the water receiving ring is lower than the height of the outer ring edge of the water receiving ring, and the water receiving ring is connected to a water outlet joint for facilitating the connection of the diversion component.

[0012] The above-mentioned reinforced sealing ring is provided with a skeleton material for preventing the reinforced sealing ring from being overly compressed and deformed. The top surface of the bottom sealing lip of the reinforced sealing ring is pressed and sealed with the bottom surface of the inner ring of the large sealing ring. The reinforced sealing ring is formed with a concave drainage groove for collecting and directing the leaked water to the diversion channel.

[0013] Two to six flow guide channels are formed with equal arcs on the above-mentioned reduced diameter transition section or the annular step surface.

[0014] The above-mentioned water outlet joint is connected to the circumferential surface of the outer ring edge of the water receiving ring, and the circumferential surface of the outer ring edge is formed with a hole for connecting the annular water storage tank and the water outlet joint or a notch groove for connecting the annular water storage tank and the water outlet joint.

[0015] The water outlet joint is connected to the annular bottom surface of the water receiving ring.

[0016] Compared with the prior art, the present invention has a reinforced sealing ring pressed into the bottom of the large sealing ring, the main sealing lip of the reinforced sealing ring is fitted with the dehydration shaft seal, and the bottom surface of the bottom sealing lip of the reinforced sealing ring is pressed and sealed with the top surface of the outer ring of the rolling bearing. The present invention can confine the water leaking from the large sealing ring between the large sealing ring and the reinforced sealing ring through the added reinforced sealing ring, ensuring that the water leaking from the large sealing ring will not enter the rolling bearing. At the same time, the present invention also has a guide channel at the hole of the large sealing ring, and the guide channel is connected to a guide component, so that the leaked water can be guided by the reinforced sealing ring and discharged to the outside of the clutch body through the guide channel and the guide component, thereby ensuring that the clutch or the bearing is protected from corrosion, making the whole machine run effectively and extending its service life.

[0017] The invention is reasonably designed, economical and practical, and easy to implement. It can effectively guide the leakage water, protect the key components of the clutch and the performance of the whole machine, ensure the service life of the clutch as a whole, and greatly reduce the market repair rate of washing machines, saving social resources. If the original repair rate can be reduced by 50%, it will be a great contribution, and the normal repair rate below 8‰ can be maintained; there are 50 million washing machines (pulsator washing machines) per year, each of which costs 600 yuan; 15 million yuan can be saved every year. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is one of the structural schematic diagrams of the present invention;

[0019] Figure 2 yes Figure 1 The local enlarged schematic diagram of point Ⅰ in the middle;

[0020] Figure 3 yes Figure 1 Sectional structural diagram of the middle and upper support;

[0021] Figure 4 It is a cross-sectional structural diagram of the large sealing ring of the present invention;

[0022] Figure 5 is a top view of the reinforced sealing ring of the present invention;

[0023] Figure 6 yes Figure 5 Schematic diagram of the cross section of the AOA;

[0024] Figure 7 This is the second structural schematic diagram of the present invention;

[0025] Figure 8 yes Figure 7 A partial enlarged schematic diagram of the middle II;

[0026] Fig. 9 yes Figure 8 Sectional structural diagram of the middle and upper support;

[0027] Fig.10 This is one of the cross-sectional structural diagrams of the water receiving ring of the present invention;

[0028] Fig.11 This is the second cross-sectional structural diagram of the water receiving ring of the present invention;

[0029] Fig.12 It is the third sectional structural diagram of the water receiving ring of the present invention. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0031] Figures 1 to 12 It is a structural schematic diagram of the present invention.

[0032] The accompanying drawings are marked as follows: drainage groove C, diversion channel K, upper oil-free bearing Z1, lower oil-free bearing Z2, upper support 1, large sealing ring hole 1a, bearing mounting hole 1b, dehydration shaft 2, impeller shaft 3, small sealing ring 4, rolling bearing 5, large sealing ring 6, sealing groove 6a, inner ring bottom surface 61, reinforced sealing ring 7, main sealing lip 71, bottom sealing lip 72, lip top surface 72a, skeleton material 73, water receiving ring 8, annular water storage tank 8a, water outlet joint 81, and diversion assembly 9.

[0033] In the prior art, the water seal between the washing machine water tub and the clutch is completed by a large seal ring and a small seal ring. After a period of use, due to the wear of the seal ring or the shaft surface, it often causes a certain amount of water seepage or leakage, making the rolling bearing of the clutch easy to rust, lock or fail. In particular, there is no drainage guide mechanism in the upper support hole of the traditional clutch upper support. Therefore, the leaked water will eventually leak into the clutch, causing clutch failure and affecting the service life of the whole machine.

[0034] The present invention provides a leakage diversion structure for a washing machine clutch, comprising a clutch upper support 1 formed with an upper support hole and a pulsator shaft 3 rotatably inserted into the shaft hole of a dehydration shaft 2. The upper support hole is composed of a large sealing ring hole 1a and a bearing mounting hole 1b which are coaxially connected in sequence from top to bottom. Figure 1 and Figure 7As shown, the impeller shaft 3 is rotatably supported and installed in the shaft hole of the dehydration shaft 2 via the upper oil-free bearing Z1 and the lower oil-free bearing Z2, so that the impeller shaft 3 can rotate freely relative to the dehydration shaft 2. A small sealing ring 4 for preventing water leakage is installed in the shaft hole port of the dehydration shaft 2, and the inner circle of the small sealing ring 4 is sealed with the outer peripheral surface of the impeller shaft 3. A clutch rolling bearing 5 is tightly positioned and installed in the bearing installation hole 1b, and the dehydration shaft 2 is rotatably supported and sleeved in the inner ring of the rolling bearing 5, so that the dehydration shaft 2 can rotate freely relative to the upper support 1. A large sealing ring 6 matching the water-tight sleeve of the outer peripheral surface of the dehydration shaft 2 is installed in the large sealing ring hole 1a. The greatest contribution of the present invention is that a reinforced seal ring 7 is pressed at the bottom of the large seal ring 6 in the large seal ring hole 1a to prevent water leaking from the large seal ring 6 from entering the rolling bearing 5. The main seal lip 71 of the reinforced seal ring 7 is matched with the outer circumferential surface seal sleeve of the dehydration shaft 2, and the bottom surface of the bottom seal lip 72 of the reinforced seal ring 7 is pressed and sealed with the top surface of the outer ring of the rolling bearing 5. The reinforced seal ring 7 can cover the part of the sealing cover inside the ball of the rolling bearing 5, so that the leaked water cannot enter the inside of the rolling bearing 5, thereby protecting the clutch machine or the bearing from the erosion of the leaked water, making the whole machine run effectively and extending the service life. In order to ensure that the large seal ring hole 1a is clean, at least one guide channel K is opened on the large seal ring hole 1a to discharge the water leaking between the large seal ring 6 and the reinforced seal ring 7, and the guide channel K is connected to a guide component 9 for guiding the discharged water to the outside of the clutch body. The diversion component 9 is a diversion plastic hose, and can also be a diversion metal pipe, or a diversion groove, as long as it can divert water.

[0035] Since the reinforced sealing ring 7 added by the present invention can prevent the leaked water from corroding the bearing, and the diversion channel K can discharge the leaked water out of the large sealing ring hole 1a in time, the large sealing ring hole 1a can always remain water-free, thereby ensuring that the bearing and internal parts of the clutch will not cause mechanical failures due to rust, thereby increasing the overall service life of the clutch, reducing the return of the washing machine for repair, reducing social waste, rationally utilizing resources, and improving customer experience and satisfaction.

[0036] Embodiment 1

[0037] like Figure 7 , Figure 8 and Fig. 9 As shown, in this embodiment, the upper support hole is formed by a through hole protruding upward formed on the top surface of the clutch upper support 1. Fig. 9It can be clearly seen that the diameter of the bearing mounting hole 1b is slightly larger than the diameter of the large sealing ring hole 1a, and a reduced diameter transition section is formed between the large sealing ring hole 1a and the bearing mounting hole 1b. The above-mentioned diversion channel K is formed on the peripheral surface of the reduced diameter transition section, that is, formed on the peripheral surface of the bottom of the large sealing ring hole 1a, so as to ensure that the leaked water will not enter the bearing mounting hole 1b. The diversion component 9 of the present invention can be directly connected to the diversion channel K. Of course, it is best to fix a water receiving ring 8 on the outer peripheral surface of the bearing mounting hole 1b. The water receiving ring 8 has a hollow collar to facilitate the sleeve on the outer peripheral surface of the bearing mounting hole 1b. The water receiving ring 8 is also formed with an annular water storage groove 8a for receiving the water flowing out of the diversion channel K, so that the water discharged from the diversion channel K can directly flow into the annular water storage groove 8a. When the water receiving ring 8 is used, more than one diversion channel K can be formed on the peripheral surface of the reduced diameter transition section. The present invention preferably forms 2 to 6 diversion channels K with equal arcs on the peripheral surface of the reduced diameter transition section. In order to facilitate the flow of water into the annular water storage tank 8a, the inner ring edge of the water receiving ring 8 and the outer ring edge of the water receiving ring 8 are designed to be different in height. The height of the inner ring edge of the water receiving ring 8 is lower than the height of the outer ring edge of the water receiving ring 8, and the water receiving ring 8 is connected to a water outlet connector 81 for facilitating the connection of the guide component 9, and the guide component 9 is plugged into the water outlet connector 81.

[0038] The connection position of the water outlet connector 81 of the present invention can be set according to the different structures of the upper support 1 as needed. Fig.10 As shown, the water outlet connector 81 can be arranged on the peripheral surface of the outer ring edge of the water receiving ring 8, and a hole for connecting the annular water storage tank 8a and the water outlet connector 81 is formed on the peripheral surface of the outer ring edge of the water receiving ring 8. Fig.12 As shown, although the water connector 81 is also arranged on the circumference of the outer ring edge of the water receiving ring 8, a notch groove is opened on the circumference of the outer ring edge for connecting the annular water storage tank 8a and the water outlet connector 81. There is another arrangement method for the water outlet connector 81 of the present invention, that is, Fig.11 As shown, the water outlet joint 81 is connected to the annular bottom surface of the water receiving ring 8.

[0039] In the embodiment, Figure 5 , Figure 6 and Figure 8 As shown, the reinforced seal ring 7 is provided with a skeleton material 73 for preventing the reinforced seal ring 7 from being overly compressed and deformed. The top surface 72a of the bottom sealing lip 72 of the reinforced seal ring 7 is pressed and sealed with the inner ring bottom surface 61 of the large seal ring 6, thereby providing a pressing force to the reinforced seal ring 7 to press the rolling bearing 5, so as to ensure the seal between the reinforced seal ring 7 and the rolling bearing 5. In order to smoothly guide the water blocked between the large seal ring hole 1a and the reinforced seal ring 7, as shown in FIG. Figure 5As shown, a concave drainage groove C is formed on the reinforced sealing ring 7 for collecting and directing the leaked water to the guide channel K.

[0040] In this embodiment, Figure 7 and Figure 8 It can be seen that the large sealing ring 6 of this embodiment is installed in the large sealing ring hole 1a by means of sealing positioning clamping. The large sealing ring 6 is formed with a sealing groove 6a which opens downward and is used to cooperate with the sealing sleeve around the hole of the large sealing ring hole 1a. In this embodiment, the opening of the upper support hole can be covered by the sealing cover of the large sealing ring 6.

[0041] Embodiment 2

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the upper support hole is formed by a downwardly recessed stepped hole formed on the top surface of the clutch upper support 1. Figure 3 It can be seen that the diameter of the large sealing ring hole 1a is larger than the diameter of the bearing mounting hole 1b, so that the bottom of the large sealing ring hole 1a forms an annular step surface of the step hole. In this embodiment, the diversion channel K is formed on the annular step surface in a downwardly penetrating manner. In this embodiment, the diversion component 9 can also be directly connected to the diversion channel K. Of course, it is best to fix a water receiving ring 8 on the outer peripheral surface of the bearing mounting hole 1b. The design structure of the water receiving ring 8 is completely the same as that of the first embodiment, and will not be repeated here.

[0043] Since the water receiving ring 8 is also used in this embodiment, in order to ensure the smoothness of water discharge, 2 to 6 guide channels K are preferably formed on the annular step surface with equal arcs.

[0044] In this embodiment, Figure 1 and Figure 2 As shown, the large sealing ring 6 is positioned and installed in the large sealing ring hole 1a, and the outer peripheral surface of the large sealing ring 6 is matched with the inner wall of the large sealing ring hole 1a in a water-tight manner.

[0045] The parts not described in this embodiment are the same as those in the first embodiment and will not be repeated here.

[0046] The present invention ensures that water leaking from the large seal ring will not enter the rolling bearing by adding a reinforced seal ring. At the same time, the present invention also opens a diversion channel at the large seal ring hole, and the diversion channel is connected to a diversion component. The leaked water can be guided by the reinforced seal ring and discharged from the large seal ring hole through the diversion channel and the diversion component, thereby ensuring that the clutch machine or the bearing is protected from corrosion, so that the whole machine can operate effectively and extend the service life.

[0047] The best embodiment of the present invention has been described, and various changes or modifications made by those skilled in the art will not depart from the scope of the present invention.

Claims

1. A water leakage diversion structure for a washing machine clutch, comprising an upper support (1) formed with an upper support hole and a pulsator shaft (3) rotatably inserted into the shaft hole of a dehydration shaft (2), the shaft hole end of the dehydration shaft (2) being provided with a small sealing ring (4), the upper support hole being composed of a large sealing ring hole (1a) and a bearing mounting hole (1b) communicating with each other from top to bottom; a rolling bearing (5) being fitted with a rotating support of the dehydration shaft (2) being positioned and installed in the bearing mounting hole (1b), a large sealing ring (6) being fitted with a sealing sleeve of the dehydration shaft (2) being installed in the large sealing ring hole (1a); the large sealing ring A reinforced seal ring (7) is press-fitted at the bottom of the ring hole (1a) located inside the large seal ring (6) for preventing water leaking from the large seal ring (6) from entering the rolling bearing (5); the main seal lip (71) of the reinforced seal ring (7) is seal-fitted with the outer circumferential surface of the dehydration shaft (2); the bottom surface of the bottom seal lip (72) of the reinforced seal ring (7) is press-fitted with the top surface of the outer ring of the rolling bearing (5); and at least one guide channel (K) is opened on the large seal ring hole (1a) for discharging water leaking between the large seal ring (6) and the reinforced seal ring (7); the characteristics are: The diversion channel (K) is connected to a diversion component (9) for guiding the discharged water to the outside of the clutch body; The outer peripheral surface of the bearing mounting hole (1b) is fixedly sleeved with a water receiving ring (8), the water receiving ring (8) is formed with an annular water storage groove (8a) for receiving water flowing out of the diversion channel (K), the height of the inner ring edge of the water receiving ring (8) is lower than the height of the outer ring edge of the water receiving ring (8), and the water receiving ring (8) is connected to a water outlet joint (81) for facilitating the connection of the diversion component (9), and the diversion component (9) is plug-connected to the water outlet joint (81); The reinforced sealing ring (7) is provided with a skeleton material (73) for preventing the reinforced sealing ring (7) from being overly compressed and deformed. The top surface (72a) of the bottom sealing lip (72) of the reinforced sealing ring (7) is pressed and sealed with the inner ring bottom surface (61) of the large sealing ring (6), thereby providing the reinforced sealing ring (7) with a pressing force for applying pressure to the rolling bearing (5). The reinforced sealing ring (7) is formed with a concave drainage groove (C) for collecting and directing the leaked water to the diversion channel (K). The water outlet joint (81) is connected to the circumferential surface of the outer ring edge of the water receiving ring (8), and the circumferential surface of the outer ring edge is formed with a hole for connecting the annular water storage tank (8a) and the water outlet joint (81) or a notch groove for connecting the annular water storage tank (8a) and the water outlet joint (81).

2. A washing machine clutch leakage diversion structure according to claim 1, characterized in that: The upper support hole is composed of an upwardly protruding through hole formed on the top surface of the upper support (1); the diameter of the bearing mounting hole (1b) is slightly larger than the diameter of the large sealing ring hole (1a); a reduced diameter transition section is formed between the large sealing ring hole (1a) and the bearing mounting hole (1b); the guide channel (K) is formed on the circumferential surface of the reduced diameter transition section; the large sealing ring (6) is positioned and clamped in the large sealing ring hole (1a); the large sealing ring (6) is formed with a sealing groove (6a) with an opening downward for cooperating with a sealing sleeve around the hole of the large sealing ring hole (1a); and 2 to 6 guide channels (K) are formed with equal arcs on the reduced diameter transition section.

3. A washing machine clutch leakage diversion structure according to claim 1, characterized in that: The upper support hole is composed of a downwardly recessed step hole formed on the top surface of the upper support (1); the diameter of the large sealing ring hole (1a) is larger than the diameter of the bearing mounting hole (1b); the bottom of the large sealing ring hole (1a) forms an annular step surface of the step hole; the guide channel (K) is formed on the annular step surface so as to pass downward; the large sealing ring (6) is positioned and installed in the large sealing ring hole (1a); the outer peripheral surface of the large sealing ring (6) cooperates with the inner wall of the large sealing ring hole (1a) in a water-tight manner; and the annular step surface is formed with 2 to 6 guide channels (K) in equal arcs.

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