Driving structure with waterproof function and washing machine

Abstract

The utility model discloses a driving structure with waterproof function and washing machine, the driving structure comprises a first cylinder shell, a driving motor, a decelerator, a mounting seat and a sealing assembly, the first cylinder shell is provided with a first convex ring, the inner side of the first convex ring is a first through hole, the mounting seat is provided with a second convex ring, the inner side of the second convex ring is a second through hole, and the second convex ring is provided with a second through hole. The first through hole and the second through hole are aligned, the outer wall of the second protruding ring makes contact with the inner wall of the first protruding ring, the speed reducer and the driving motor are installed on the installation base, an output shaft of the speed reducer penetrates through the second through hole to extend out, the sealing assembly comprises a framework oil seal and a first sealing ring, and the framework oil seal is arranged on the output shaft of the speed reducer in a sleeving mode. Water is prevented from leaking from the second through hole; the first sealing ring sleeves the second convex ring, the upper surface of the first sealing ring is in contact with the bottom of the first convex ring, and the lower surface of the first sealing ring is in contact with the mounting seat to prevent water from leaking from the contact surface of the first convex ring and the second convex ring. The driving structure can prevent water from entering the device, and normal operation of the device is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of washing machines, and in particular relates to a driving structure with a waterproof function and a washing machine comprising the driving structure. Background Art

[0002] At present, the transmission systems of common washing machines on the market are mostly motor-driven gearbox reduction transmission. Generally speaking, the transmission system of the washing machine is set at the bottom of the washing drum. The water in the washing drum can easily leak into the gearbox along the connection between the gearbox and the washing drum. Once water enters the gearbox, the gearbox will be damaged, causing the washing machine to be scrapped.

[0003] It can be seen that in the prior art, an effective sealing structure is provided in the washing machine to prevent water in the washing drum from leaking into the transmission system, thereby causing the washing machine to be easily damaged. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a driving structure with a waterproof function and a washing machine including the driving structure in view of the above-mentioned deficiencies in the prior art, wherein the driving structure can effectively prevent water in the washing machine from entering the interior thereof, thereby ensuring the normal operation of the driving structure.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A driving structure with waterproof function, used for a washing machine, comprises a first barrel shell, a driving motor, a reducer, a mounting seat, and a sealing assembly, wherein a first convex ring is provided on the top of the first barrel shell, and a first through hole is formed inside the first convex ring; the mounting seat is located inside the first barrel shell, and a second convex ring is provided on the top of the first barrel shell, and a second through hole is formed inside the second convex ring; the first through hole and the second through hole are aligned, and the outer wall of the second convex ring contacts the inner wall of the first convex ring; the reducer and the driving motor are both mounted on the mounting seat, the reducer is connected to the output shaft of the driving motor through a transmission belt, and the output shaft of the reducer is connected to an external transmission assembly after passing through the second through hole and the first through hole; the sealing assembly comprises a skeleton oil seal and a first sealing ring, the skeleton oil seal is sleeved on the output shaft of the reducer, and the outer side of the skeleton oil seal contacts the inner wall of the second through hole to prevent water from leaking from the second through hole; the first sealing ring is sleeved on the second convex ring, and the upper surface of the skeleton oil seal contacts the bottom of the first convex ring, and the lower surface contacts the mounting seat to prevent water from leaking from the contact surface between the first convex ring and the second convex ring.

[0007] Preferably, the driving structure also includes a transmission cover plate, the bottom of which is connected to the top of the output shaft of the reducer, and the top of the first cylinder shell is also provided with an annular boss, which is located on the outside of the first convex ring, and a first groove is formed between the first convex ring and the annular boss, the outer edge of the transmission cover plate extends into the first groove, and the bottom end of the outer edge of the transmission cover plate is lower than the top of the first convex ring.

[0008] Preferably, a vertically arranged annular baffle is also provided inside the transmission cover plate.

[0009] Preferably, the transmission belt is a poly-V belt.

[0010] Preferably, a plurality of first protrusions are provided at intervals along the circumferential direction on the top of the transmission cover plate, and a second groove is provided between two adjacent first protrusions.

[0011] The utility model also provides a washing machine, including a transmission assembly, a stirring impeller, a second barrel shell, and also includes the above-mentioned driving structure with waterproof function, the transmission assembly includes a connecting piece and a transmission shaft, a plurality of second protrusions are arranged on the lower surface of the connecting piece along the circumferential direction, and a third groove is formed between two adjacent second protrusions, when the transmission cover plate is docked with the connecting piece, the first protrusion is inserted into the corresponding third groove, and the second protrusion is inserted into the corresponding second groove, the second barrel shell is arranged above the first barrel shell, the stirring impeller is located in the second barrel shell, the bottom end of the transmission shaft is connected to the connecting piece, and the top end is connected to the stirring impeller.

[0012] Preferably, the washing machine further comprises a drum cover, and the drum cover is used to cover the opening at the top of the second drum shell.

[0013] Preferably, the washing machine further comprises a handle, and both ends of the handle are rotatably mounted on the outer wall of the second drum shell.

[0014] The driving structure with waterproof function in the utility model can prevent water in the washing machine from leaking into the interior of the driving structure along the output shaft of the reducer through the skeleton oil seal arranged in the second through hole, and prevent water from leaking into the interior of the driving structure from the gap between the first convex ring and the second convex ring through the first sealing ring arranged at the bottom of the first convex ring and outside the second convex ring. The two sealing structures are combined with each other, which can greatly increase the sealing performance of the interior of the driving structure, prevent water from entering the interior, and ensure the normal operation of the driving structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a cross-sectional view of the driving structure in Embodiment 1 of the present utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0017] Figure 3 It is a schematic diagram of the structure of the mounting base in Embodiment 1 of the present utility model;

[0018] Figure 4 This is a schematic diagram of the installation of the mounting base, the drive motor and the reducer in Embodiment 1 of the present utility model;

[0019] Figure 5 This is a schematic diagram of the installation of the drive motor and the reducer in Embodiment 1 of the present utility model;

[0020] Figure 6 It is a schematic structural diagram of a washing machine in Embodiment 2 of the present utility model;

[0021] Figure 7 It is a schematic diagram of the connection between the transmission assembly and the transmission cover plate in Embodiment 2 of the present utility model;

[0022] Figure 8 It is a diagram of the internal structure of the second cylinder shell in Example 2 of the utility model.

[0023] In the figure: 100-first cylinder shell, 101-first convex ring, 102-first through hole, 110-second cylinder shell, 120-cylinder cover, 130-handle, 200-drive motor, 210-reducer, 211-transmission belt, 220-mounting seat, 221-second convex ring, 222-second through hole, 223-third through hole, 224-first opening, 300-skeleton oil seal, 310-first sealing ring, 400-transmission cover plate, 401-first protrusion, 402-second groove, 410-annular baffle, 500-connecting piece, 510-transmission shaft, 520-mixing impeller, 600-bearing, 700-annular boss, 710-first groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, but not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of the utility model.

[0025] In the description of the present invention, it should be noted that the term "upper" and the like indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connection", "setting", "installation", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] The utility model provides a driving structure with a waterproof function, which is used for a washing machine and comprises a first cylinder shell, a driving motor, a reducer, a mounting seat and a sealing assembly. A first convex ring is provided on the top of the first cylinder shell, a first through hole is formed inside the first convex ring, the mounting seat is located inside the first cylinder shell, a second convex ring is provided on the top of the first cylinder shell, a second through hole is formed inside the second convex ring, the first through hole and the second through hole are aligned, and the outer wall of the second convex ring contacts the inner wall of the first convex ring, the reducer and the driving motor are both mounted on the mounting seat, the reducer is connected to the output shaft of the driving motor through a transmission belt, the output shaft of the reducer is connected to an external transmission assembly after passing through the second through hole and the first through hole, the sealing assembly comprises a skeleton oil seal and a first sealing ring, the skeleton oil seal is sleeved on the output shaft of the reducer, and the outer side of the skeleton oil seal contacts the inner wall of the second through hole to prevent water from leaking from the second through hole; the first sealing ring is sleeved on the second convex ring, the upper surface of the skeleton oil seal contacts the bottom of the first convex ring, and the lower surface contacts the mounting seat to prevent water from leaking from the contact surface between the first convex ring and the second convex ring.

[0029] The utility model also provides a washing machine, including a transmission assembly, a stirring impeller, a second barrel shell, and also includes the above-mentioned driving structure with waterproof function, the transmission assembly includes a connecting piece and a transmission shaft, a plurality of second protrusions are arranged on the lower surface of the connecting piece along the circumferential direction, and a third groove is formed between two adjacent second protrusions, when the transmission cover plate is docked with the connecting piece, the first protrusion is inserted into the corresponding third groove, and the second protrusion is inserted into the corresponding second groove, the second barrel shell is arranged above the first barrel shell, the stirring impeller is located in the second barrel shell, the bottom end of the transmission shaft is connected to the connecting piece, and the top end is connected to the stirring impeller.

[0030] Example 1

[0031] like Figure 1 As shown, this embodiment discloses a driving structure with waterproof function, which is used for a washing machine and is located at the bottom of the washing machine, and includes a first barrel shell 100, a driving motor 200, a reducer 210, a mounting seat 220, and a sealing assembly. The first barrel shell 100 is a cylindrical hollow shell structure and a closed structure, and a first convex ring 101 (convex upward along the upper surface of the first barrel shell 100) is provided at the center of its top, and a first through hole 102 is penetrated inside the first convex ring 101, and the mounting seat 220 is located inside the first barrel shell 100, and a second convex ring 221 is provided on the top thereof, and a second through hole 222 is provided inside the second convex ring 221, and the first through hole 102 and the second through hole 222 are aligned, and the outer diameter of the second convex ring 221 is the same as the inner diameter of the first convex ring 101, and when the second convex ring 221 is inserted into the first through hole 102, the outer wall of the second convex ring 221 can just contact the inner wall of the first convex ring 101.

[0032] like Figure 3 , 4 As shown in Figures 5 and 6, the reducer 210 and the drive motor 200 are both mounted on the mounting seat 220 and are located inside the first cylindrical shell 100. One end of the mounting seat 220 is in the shape of a flat plate, and a third through hole 223 is provided at the end. The other end of the mounting seat 220 protrudes upward to form a conical structure, and the center of the conical structure is the second through hole 222. A first opening 224 is provided on one side of the conical structure of the mounting seat 220 close to the plane end.

[0033] The driving motor 200 is arranged below the mounting seat 220, and its output shaft passes through the third through hole 223 from bottom to top and then extends upward, the reducer 210 is arranged below the tapered structure of the mounting seat 220, and its output shaft passes through the second through hole 222 from bottom to top and then extends upward, and the reducer 210 is connected to the output shaft of the driving motor 200 through the transmission belt 211. Specifically, one side of the transmission belt 211 is wound around the output shaft of the driving motor 200, and then passes through the first opening 224 and enters below the tapered structure of the mounting seat 220, and then is connected to the reducer 210.

[0034] Furthermore, the transmission belt 211 is a poly-V belt, and threads matching the poly-V belt are provided on the output shaft of the drive motor 200 and the reducer 210. The use of a poly-V belt transmission can increase the transmission stability of the drive structure.

[0035] like Figure 1 , 4 As shown, in this embodiment, the upper end of the output shaft of the reducer 210 passes through the second through hole 222 and the first through hole 102 and is connected to the external transmission component, and the sealing component includes a skeleton oil seal 300 and a first sealing ring 310. A bearing 600 is arranged in the second through hole 222, and the output shaft of the reducer 210 is installed in the bearing 600. The skeleton oil seal 300 is sleeved on the output shaft of the reducer 210 and is located above the bearing 600. The outer side of the skeleton oil seal 300 contacts the inner wall of the second through hole 222 to prevent water from leaking from the second through hole 222; the first sealing ring 310 is sleeved on the second convex ring 221, and its upper surface contacts the bottom of the first convex ring 101, and its lower surface contacts the mounting seat 220 to prevent water from leaking from the contact surface between the first convex ring 101 and the second convex ring 221.

[0036] like Figure 1 , 2 As shown, further, the driving mechanism also includes a transmission cover plate 400, the bottom of which is connected to the top of the output shaft of the reducer 210, and the top of the first cylinder shell 100 is also provided with an annular boss 700, which is located outside the first convex ring 101, and a first groove 710 is formed between the first convex ring 101 and the annular boss 700, the outer edge of the transmission cover plate 400 extends into the first groove 710, and the bottom end of the outer edge of the transmission cover plate 400 is lower than the top of the first convex ring 101 (in the vertical direction). Water from the inside of the washing machine will gather in the first groove 710, and such a structural design is conducive to preventing water from entering the first through hole 102.

[0037] like Figure 2As shown, further, a vertically arranged annular baffle 410 is further provided inside the transmission cover plate 400. The annular baffle 410 can further prevent water from entering the first through hole 102, thereby reducing the possibility of water entering the interior of the driving structure.

[0038] In this embodiment, a plurality of first protrusions 401 are provided at intervals along the circumferential direction on the top of the transmission cover plate 400, and a second groove 402 is provided between two adjacent first protrusions 401. This structure is used to connect with an external transmission component to drive the washing machine to operate.

[0039] The waterproof driving structure in this embodiment can prevent water in the washing machine from leaking into the interior of the driving structure along the output shaft of the reducer 210 through the skeleton oil seal 300 arranged in the second through hole 222, and prevent water from leaking into the interior of the driving structure from the gap between the first convex ring 101 and the second convex ring 221 through the first sealing ring 310 arranged at the bottom of the first convex ring 101 and outside the second convex ring 221. The two sealing structures are combined with each other, which can greatly increase the sealing performance of the interior of the driving structure, prevent water from entering into the interior, and ensure the normal operation of the driving structure.

[0040] Example 2

[0041] like Figure 6 , 7 As shown in Figure 8, this embodiment discloses a washing machine, including a transmission assembly, a stirring impeller 520, a second barrel shell 110, and also includes the driving structure with waterproof function in Example 1, the transmission assembly includes a connecting member 500 and a transmission shaft 510, a plurality of second protrusions are arranged on the lower surface of the connecting member 500 along the circumferential direction, and a third groove is formed between two adjacent second protrusions, when the transmission cover plate 400 is docked with the connecting member 500, the first protrusion 401 is inserted into the corresponding third groove, and the second protrusion is inserted into the corresponding second groove 402, the second barrel shell 110 is arranged above the first barrel shell 100, the stirring impeller 520 is located in the second barrel shell 110, the bottom end of the transmission shaft 510 is connected to the connecting member 500, and the top end is connected to the stirring impeller 520.

[0042] like Figure 6 As shown, in this embodiment, the second barrel shell 110 is a washing barrel for holding and washing clothes, and the stirring impeller 520 is used to drive the clothes in the second barrel shell 110 to rotate. A barrel cover 120 is provided above the second barrel shell 110, which can be easily opened or closed.

[0043] like Figure 6As shown, the washing machine further includes a handle 130, and both ends of the handle 130 are rotatably mounted on the outer wall of the second drum shell 110. When the washing machine needs to be moved, the handle 130 can be rotated to the top of the second drum shell 110, so as to facilitate lifting the washing machine; when washing or other times when the washing machine does not need to be moved, the handle 130 can be rotated to a position in contact with the side wall of the second drum shell 110.

[0044] The washing machine in this embodiment has good waterproof performance to prevent water in the second barrel shell 110 from leaking into the driving structure at the bottom, thereby ensuring the normal operation of the washing machine and extending its service life.

[0045] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A driving structure with waterproof function, used in a washing machine, characterized in that: It comprises a first cylinder shell (100), a driving motor (200), a reducer (210), a mounting seat (220), and a sealing assembly. The top of the first cylindrical shell (100) is provided with a first convex ring (101), the inner side of the first convex ring (101) is a first through hole (102), the mounting seat (220) is located inside the first cylindrical shell (100), the top of the first cylindrical shell (100) is provided with a second convex ring (221), the inner side of the second convex ring (221) is a second through hole (222), The first through hole (102) and the second through hole (222) are aligned with each other, and the outer wall of the second convex ring (221) is in contact with the inner wall of the first convex ring (101); the reducer (210) and the drive motor (200) are both mounted on the mounting seat (220); the reducer (210) is connected to the output shaft of the drive motor (200) via a transmission belt (211); the output shaft of the reducer (210) passes through the second through hole (222) and the first through hole (102) and is connected to an external transmission component; The sealing assembly comprises a skeleton oil seal (300) and a first sealing ring (310); the skeleton oil seal (300) is sleeved on the output shaft of the reducer (210), and its outer side contacts the inner wall of the second through hole (222), so as to prevent water from leaking from the second through hole (222); the first sealing ring (310) is sleeved on the second convex ring (221), its upper surface contacts the bottom of the first convex ring (101), and its lower surface contacts the mounting seat (220), so as to prevent water from leaking from the contact surface between the first convex ring (101) and the second convex ring (221).

2. The driving structure with waterproof function according to claim 1, characterized in that: The invention also comprises a transmission cover plate (400), the bottom of which is connected to the top of the output shaft of the reducer (210); the top of the first cylinder shell (100) is also provided with an annular boss (700); the annular boss (700) is located on the outside of the first convex ring (101); a first groove (710) is formed between the first convex ring (101) and the annular boss (700); the outer edge of the transmission cover plate (400) extends into the first groove (710); and the bottom end of the outer edge of the transmission cover plate (400) is lower than the top end of the first convex ring (101).

3. The driving structure with waterproof function according to claim 2, characterized in that: A vertically arranged annular baffle (410) is also provided inside the transmission cover plate (400).

4. The driving structure with waterproof function according to claim 3, characterized in that: The transmission belt (211) is a multi-V belt.

5. The driving structure with waterproof function according to claim 2, characterized in that: A plurality of first protrusions (401) are arranged at intervals along the circumferential direction on the top of the transmission cover plate (400), and a second groove (402) is provided between two adjacent first protrusions (401).

6. A washing machine, comprising a transmission assembly, a stirring impeller (520), and a second drum shell (110), characterized in that: It also comprises the driving structure with waterproof function according to any one of claims 2 to 5, wherein the transmission assembly comprises a connecting member (500), a transmission shaft (510), A plurality of second protrusions are arranged at intervals along the circumferential direction on the lower surface of the connecting member (500), and a third groove is formed between two adjacent second protrusions. When the transmission cover plate (400) is docked with the connecting member (500), the first protrusion (401) is inserted into the corresponding third groove, and the second protrusion is inserted into the corresponding second groove (402). The second cylindrical shell (110) is arranged above the first cylindrical shell (100), the stirring impeller (520) is located in the second cylindrical shell (110), the bottom end of the transmission shaft (510) is connected to the connecting piece (500), and the top end is connected to the stirring impeller (520).

7. The washing machine according to claim 6, characterized in that: It also includes a cylinder cover (120), and the cylinder cover (120) is used to cover the opening on the top of the second cylinder shell (110).

8. The washing machine according to claim 7, characterized in that: It also includes a handle (130), both ends of which are rotatably mounted on the outer wall of the second cylinder shell (110).

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