Washing machine with inner barrel and impeller integrated structure

Abstract

The utility model discloses a washing machine with an inner drum and an impeller integrated structure, which comprises an outer drum and an inner drum, the inner drum is arranged in the outer drum and is coaxial with the outer drum, the lower end of the outer drum is provided with a mounting hole and a driving motor, a metal insert is arranged in the mounting hole, the metal insert is provided with a central hole, and the central hole is communicated with the driving motor. A driving shaft of the driving motor penetrates through the center hole and then is connected with the lower end of the inner barrel, and the metal insert is in sealing fit with the driving shaft through a waterproof sealing ring; the washing machine has the advantages that the running stability of the driving motor can be improved, generated vibration and noise are reduced, and the service life of the washing machine is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulsator washing machines, in particular to a washing machine with an inner drum and a pulsator integrated structure. Background Art

[0002] The inner barrel and impeller integrated structure is a washing machine design, in which the inner barrel of the washing machine has a water-repelling rib integrally formed at the bottom, which replaces the existing impeller structure, and the drive shaft of the drive motor is connected to the inner barrel, and the drive motor drives the inner barrel to rotate after starting. For example, an inner barrel impeller integrated structure and a washing machine disclosed in application number CN201310134110.2, an inner barrel impeller integrated structure is coaxially arranged inside the outer barrel of the washing machine, and the power shaft of the washing machine extends into the shaft hole at the center of the inner barrel bottom of the inner barrel impeller integrated structure.

[0003] Although this type of washing machine has a simplified structure, the driving motor needs to bear the entire weight of the inner barrel and the water and clothes in the inner barrel. When the driving motor bears a large weight, it may produce large vibrations and noise during operation and has poor stability. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a washing machine with an inner drum and a pulsator integrated structure, which can improve the running stability of the driving motor, thereby reducing the vibration and noise generated, and is conducive to extending the service life of the washing machine.

[0005] The utility model adopts the following technical solution to solve the above technical problems: a washing machine with an inner drum and a pulsator integrated structure, comprising an outer drum and an inner drum, the inner drum being arranged in the outer drum and coaxially arranged with the outer drum, a mounting hole and a driving motor being arranged at the lower end of the outer drum, a metal insert being arranged in the mounting hole, the metal insert having a center hole, a driving shaft of the driving motor being connected to the lower end of the inner drum after passing through the center hole, and the metal insert being sealed with the driving shaft via a waterproof sealing ring.

[0006] Preferably, the upper end surface of the metal insert is recessed downward to form a first step groove connected to the center hole, the first step groove is arranged in an annular shape, and the waterproof sealing ring is arranged in the first step groove.

[0007] Preferably, the lower end surface of the metal insert is recessed upward to form a second step groove connected to the center hole, the second step groove is arranged in an annular shape, a rotating bearing is arranged in the second step groove, and the inner ring of the rotating bearing is sleeved on the drive shaft.

[0008] Preferably, at least one positioning groove is provided on the outer side surface of the metal insert, and positioning blocks equal in number to the positioning grooves are provided in the mounting hole, the positioning blocks correspond to the positioning grooves, and the positioning blocks extend into the corresponding positioning grooves.

[0009] Preferably, a plurality of positioning grooves 44 are provided, and the plurality of positioning grooves 44 are distributed at equal intervals along the circumferential direction.

[0010] Preferably, two positioning grooves are provided and arranged in a ring shape, and the two positioning grooves are distributed in the up and down directions.

[0011] Preferably, the positioning groove located on the lower side is located between the first step groove and the second step groove, and the groove depth of the positioning groove located on the lower side is greater than the groove depth of the positioning groove located on the upper side.

[0012] Preferably, the metal insert is made of aluminum.

[0013] Preferably, the bottom of the outer barrel protrudes upward to form a boss, and the mounting hole is located at the center of the boss.

[0014] Compared with the prior art, the advantage of the utility model lies in that a metal insert is arranged at the bottom of the outer barrel, and the driving shaft of the driving motor passes through the center hole of the metal insert. Since the metal insert is fixedly arranged on the outer barrel, it can play a role in stabilizing the positioning of the driving shaft, thereby improving the stability of the driving motor operation, reducing the vibration and noise generated, and helping to extend the service life of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial structural schematic diagram of the washing machine of the utility model;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the washing machine of the utility model;

[0017] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0018] Figure 4 The structure of the metal insert in the utility model is shown in FIG. Figure 1 ;

[0019] Figure 5 The structure of the metal insert in the utility model is shown in FIG. Figure 2 .

[0020] In the figure: 1. outer barrel; 11. mounting hole; 12. boss; 13. groove; 14. reinforcing rib; 15. positioning block; 2. inner barrel; 3. drive motor; 31. drive shaft; 4. metal insert; 41. center hole; 42. first step groove; 43. second step groove; 44. positioning groove; 5. waterproof sealing ring; 6. rotating bearing. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] Embodiment 1: Figures 1 to 3 As shown, a washing machine with an inner drum and a pulsator integrated structure comprises an outer drum 1 and an inner drum 2. The inner drum 2 is arranged in the outer drum 1 and coaxially with the outer drum 1. A mounting hole 11 and a driving motor 3 are arranged at the lower end of the outer drum 1. A metal insert 4 is arranged in the mounting hole 11. The metal insert 4 has a center hole 41. The driving shaft 31 of the driving motor 3 passes through the center hole 41 and is connected to the lower end of the inner drum 2. The metal insert 4 is sealed with the driving shaft 31 through a waterproof sealing ring 5.

[0024] Among them, the metal insert 4 can play a role in stabilizing the positioning of the drive shaft 31. Preferably, the metal insert 4 is made of aluminum, which has good structural strength and low cost; the waterproof sealing ring 5 plays a waterproof sealing role; the drive motor 3 adopts a brushless motor, which can achieve stepless speed regulation and has good flexibility.

[0025] In this embodiment, the bottom of the outer barrel 1 is raised upward to form a boss 12, and the mounting hole 11 is located at the center of the boss 12. The thickness of the boss 12 is relatively thick, and the structural strength is good. In combination with the metal insert 4, the drive shaft 31 can be better stabilized to improve the stability of the structure. In the design, an annular groove 13 can be provided at the lower end of the boss 12, and the groove 13 can be provided with annular and divergent reinforcing ribs 14. Under the premise of ensuring the structural strength, the use of materials is reduced, which helps to reduce the production cost.

[0026] Embodiment 2: Figure 3 and Figure 4As shown, the rest of the parts are the same as those in the first embodiment, except that the upper end surface of the metal insert 4 is recessed downward to form a first step groove 42 connected to the center hole 41, the first step groove 42 is arranged in a ring shape, and the waterproof sealing ring 5 is arranged in the first step groove 42, the outer ring of the waterproof sealing ring 5 is abutted against the side surface of the first step groove 42, and the lower end surface of the waterproof sealing ring 5 is abutted against the bottom of the first step groove 42, the contact surface between the two is large, and the waterproof sealing effect is better. In addition, the first step groove 42 can play a positioning role. After water is injected, the water pressure can only act on the upper end surface of the waterproof sealing ring 5, that is, it can only generate a thrust to drive the waterproof sealing ring 5 to move downward, which helps to ensure the waterproof sealing effect.

[0027] In this embodiment, the lower end surface of the metal insert 4 is recessed upward to form a second step groove 43 connected to the center hole 41. The second step groove 43 is arranged in a ring shape. A rotating bearing 6 is arranged in the second step groove 43. The inner ring of the rotating bearing 6 is sleeved on the drive shaft 31, which helps to reduce the friction between the drive shaft 31 and the metal insert 4. At the same time, it can play a positioning role to ensure that the drive shaft 31 and the outer barrel 1 are located on the same axis and have better stability.

[0028] Embodiment 3: Figure 3 and 4 As shown, the rest of the parts are the same as those of the second embodiment, except that at least one positioning groove 44 is provided on the outer side of the metal insert 4, and the mounting hole 11 is provided with positioning blocks 15 whose number is equal to the positioning grooves 44, and the positioning blocks 15 correspond to the positioning grooves 44, and the positioning blocks 15 extend into the corresponding positioning grooves 44.

[0029] In this embodiment, a plurality of positioning grooves 44 are provided, and the plurality of positioning grooves 44 are evenly spaced along the circumferential direction. The arrangement of the positioning grooves 44 and the positioning blocks 15 helps to improve the stability of the connection between the metal insert 4 and the outer barrel 1, and has good reliability. In-mold injection molding can be used during production, and the processing is relatively simple.

[0030] Embodiment 4: Figure 3 and 5 As shown, the rest of the parts are the same as those of the third embodiment, except that two positioning grooves 44 are provided and arranged in a ring shape, and the two positioning grooves 44 are distributed in the up and down directions.

[0031] In this embodiment, the positioning groove 44 located on the lower side is located between the first step groove 42 and the second step groove 43, and the groove depth of the positioning groove 44 located on the lower side is greater than the groove depth of the positioning groove 44 located on the upper side. Under the premise of ensuring the wall thickness of the metal insert 4, the metal insert 4 is reasonably and fully utilized.

[0032] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A washing machine with an inner drum and a pulsator integrated structure, comprising an outer drum (1) and an inner drum (2), wherein the inner drum (2) is arranged in the outer drum (1) and is coaxially arranged with the outer drum (1), and a mounting hole (11) and a driving motor (3) are arranged at the lower end of the outer drum (1), characterized in that A metal insert (4) is arranged in the mounting hole (11), and the metal insert (4) has a center hole (41). The drive shaft (31) of the drive motor (3) passes through the center hole (41) and is connected to the lower end of the inner barrel (2). The metal insert (4) is sealed with the drive shaft (31) via a waterproof sealing ring (5).

2. A washing machine with an inner drum and a pulsator integrated structure according to claim 1, characterized in that The upper end surface of the metal insert (4) is recessed downward to form a first step groove (42) communicating with the central hole (41); the first step groove (42) is arranged in an annular shape, and the waterproof sealing ring (5) is arranged in the first step groove (42).

3. A washing machine with an inner drum and a pulsator integrated structure according to claim 2, characterized in that The lower end surface of the metal insert (4) is recessed upward to form a second step groove (43) connected to the center hole (41); the second step groove (43) is arranged in an annular shape; a rotating bearing (6) is arranged in the second step groove (43); and the inner ring of the rotating bearing (6) is sleeved on the drive shaft (31).

4. A washing machine with an inner drum and a pulsator integrated structure according to claim 3, characterized in that The outer side surface of the metal insert (4) is provided with at least one positioning groove (44), and the mounting hole (11) is provided with positioning blocks (15) whose number is equal to the positioning grooves (44), and the positioning blocks (15) correspond to the positioning grooves (44), and the positioning blocks (15) extend into the corresponding positioning grooves (44).

5. A washing machine with an inner drum and a pulsator integrated structure according to claim 4, characterized in that A plurality of the positioning grooves (44) are provided, and the plurality of positioning grooves (44) are distributed at equal intervals along the circumferential direction.

6. A washing machine with an inner drum and a pulsator integrated structure according to claim 4, characterized in that Two positioning grooves (44) are provided and arranged in a ring shape, and the two positioning grooves (44) are distributed in the up-down direction.

7. A washing machine with an inner drum and a pulsator integrated structure according to claim 6, characterized in that The positioning groove (44) located at the lower side is located between the first step groove (42) and the second step groove (43), and the groove depth of the positioning groove (44) located at the lower side is greater than the groove depth of the positioning groove (44) located at the upper side.

8. The washing machine with an inner drum and a pulsator integrated structure according to claim 1, characterized in that The metal insert (4) is made of aluminum.

9. A washing machine with an inner drum and a pulsator integrated structure according to claim 1, characterized in that The bottom of the outer barrel (1) protrudes upward to form a boss (12), and the mounting hole (11) is located at the center of the boss (12).

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