CN111218792A

CN111218792A - Impeller and washing machine

Info

Publication number: CN111218792A
Application number: CN201811423962.2A
Authority: CN
Inventors: 赵志强; 许升; 吕佩师
Original assignee: Qingdao Haier Washing Machine Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2020-06-02
Anticipated expiration: 2038-11-27
Also published as: CN111218792B

Abstract

The invention relates to the technical field of washing machines, in particular to an impeller and a washing machine. The impeller comprises an inner impeller and an outer impeller which are coaxially arranged, a one-way clutch mechanism is arranged between the inner impeller and the outer impeller, one driving part can drive the other driving part to synchronously rotate when rotating positively, and the other driving part can independently rotate when rotating along the opposite direction. When interior impeller and outer impeller rotate simultaneously, the rivers state is comparatively single, but when passive party is static for the initiative party, make first kind rivers state when the initiative party rotates, passive party can the pivoted setting on the initiative party, passive party receives the influence of first kind rivers state, can produce second kind rivers state, but second kind rivers state is not the rivers state of law, thereby make the rivers state in the pail actually be pluralism coexistence jointly, thereby guarantee that the impeller can not cause the clothing to twine because of single rivers state at the during operation, and can not reduce the degree of clothing wearing and tearing, protect the clothing, improve user satisfaction.

Description

Impeller and washing machine

Technical Field

The invention relates to the technical field of washing machines, in particular to an impeller and a washing machine.

Background

The existing pulsator washing machine mainly depends on rotation of a pulsator to stir clothes for friction decontamination, however, the washing mode has single water flow state, and the periodic forward and reverse rotating water flow enables the clothes to be easily twisted together in the washing process, meanwhile, the clothes are easily worn, and consumers complain about the twisting of the clothes are very serious.

In order to solve the above problems in the prior art, an axial flow impeller is provided, which can generate vertical circulating water flow in a washing tub during selection, and can effectively prevent the occurrence of a phenomenon of clothes winding, but the axial flow impeller needs to be used in combination with the washing tub with a plurality of water outlet holes to realize the vertical circulating water flow in the washing tub, so that the manufacturing cost of manufacturers is directly increased, and the impeller cannot be directly replaced into the existing impeller washing machine of a user to solve the problems of clothes winding and abrasion.

Therefore, it is necessary to provide a pulsator capable of solving the problem of the entanglement and abrasion of the laundry.

Disclosure of Invention

The invention aims to provide an impeller and a washing machine, which can solve the problems of clothes winding and abrasion without improving other washing machine components.

In order to achieve the purpose, the invention adopts the following technical scheme:

the impeller comprises an inner impeller and an outer impeller which are coaxially arranged, a one-way clutch mechanism is arranged between the inner impeller and the outer impeller, one driving side can drive the other driving side to synchronously rotate when rotating along one direction, and the driving side can independently rotate when rotating along the opposite direction.

Preferably, the one-way clutch mechanism comprises at least one limiting groove and clamping blocks, the number of the clamping blocks is the same as that of the limiting groove, and the limiting grooves are matched with the clamping blocks one by one so that the inner impeller and the outer impeller rotate synchronously.

Preferably, when the limiting groove is arranged on the inner impeller, the width of the limiting groove is gradually increased from the outer side of the inner impeller to the center of the inner impeller, and the clamping block can be movably arranged in the limiting groove.

Preferably, the limiting groove is arranged at the bottom of the inner impeller.

Preferably, the clamping block is a roller, the roller clamps the inner impeller and the outer impeller when the outer impeller rotates along one direction, and the roller is arranged in a non-contact manner with the vertical side wall of the outer impeller when the outer impeller rotates along the other direction.

Preferably, the clamping block is connected with the inner impeller through an elastic element.

Preferably, when the limiting groove is arranged on the outer impeller, the clamping block is arranged on the outer side of the inner impeller, and when the outer impeller rotates along a direction, the clamping block is abutted against the wall of the limiting groove, so that the outer impeller and the inner impeller rotate coaxially; when the outer impeller rotates along the other direction, the clamping block is arranged in a slipping manner with the groove wall of the limiting groove, so that the inner impeller is static relative to the outer impeller.

Preferably, the outer impeller comprises an outer impeller disc and an outer impeller shaft, the outer impeller shaft penetrates through the center of the outer impeller disc, an accommodating cavity for accommodating the inner impeller is formed between the outer impeller shaft and the outer impeller disc, the top end of the outer impeller shaft penetrates through the center of the inner impeller, and the clamping block is located between the inner impeller and the outer impeller.

Preferably, the pulsator further comprises a fixing member for limiting the movement of the inner pulsator, and the fixing member is disposed at the top end of the outer pulsator shaft.

The invention also provides a washing machine comprising the impeller.

The invention has the beneficial effects that:

according to the impeller and the washing machine provided by the invention, the inner impeller and the outer impeller rotate simultaneously or the driven impeller is static relative to the driving impeller according to the positive and negative rotation of the motor shaft. When interior impeller and outer impeller rotate simultaneously, the rivers state is comparatively single, but when passive party is static for the initiative party, make first kind rivers state when the initiative party rotates, passive party can the pivoted setting on the initiative party, passive party receives the influence of first kind rivers state, can produce second kind rivers state, but second kind rivers state is not the rivers state of law, thereby make the rivers state in the pail actually be pluralism coexistence jointly, thereby guarantee that the impeller can not cause the clothing to twine because of single rivers state at the during operation, and can not reduce the degree of clothing wearing and tearing, protect the clothing, improve user satisfaction.

Drawings

FIG. 1 is a front view of a pulsator according to embodiment 1 of the present invention

FIG. 2 is a schematic view of the connection between the inner pulsator and the outer pulsator provided in FIG. 1;

fig. 3 is a partial schematic view of a washing machine provided in embodiment 1 of the present invention;

fig. 4 is a schematic diagram of a specific connection between the inner pulsator and the outer pulsator provided in embodiment 2 of the present invention;

fig. 5 is another specific connection diagram of the inner wave wheel and the outer wave wheel provided in embodiment 2 of the present invention.

In the figure:

1. an inner impeller; 11. a fitting projection; 12. a second protrusion; 2. an outer pulsator; 21. an outer wave wheel disc; 22. an outer wave wheel shaft; 23. a first protrusion; 3. a limiting groove; 4. a clamping block; 41. a mounting ring; 5. an elastic element; 6. a fixing member; 7. an inner barrel; 8. an outer tub; 9. a motor; 10. a wedge-shaped bulge.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

Example 1

The embodiment provides a pulsator, as shown in fig. 1-2, comprising an inner pulsator 1 and an outer pulsator 2 which are coaxially arranged, and comprising the inner pulsator 1 and the outer pulsator 2 which are coaxially arranged, wherein a one-way clutch mechanism is arranged between the inner pulsator 1 and the outer pulsator 2, one driving part can drive the other driving part to synchronously rotate when rotating forwards, and the other driving part can independently rotate when rotating backwards. In the embodiment, the outer impeller 2 is connected with the motor 9 and rotates along with the motor 9, and the inner impeller 1 can selectively rotate along with the outer impeller 2. Of course, in other embodiments, the inner impeller 1 may be connected to the motor 9 and rotate with the motor 9, and the outer impeller 2 may selectively rotate with the inner impeller 1.

When the inner impeller 1 does not rotate along with the outer impeller 2, irregular rotation of the inner impeller 1 begins to occur due to the action of water flow, the water flow state is further disturbed, the water flow in the washing tub is changed from unidirectional water flow to multidirectional water flow, and accordingly clothes are prevented from being wound and abraded under the action of the unidirectional water flow.

Wherein, above-mentioned one-way clutch mechanism includes at least one spacing groove 3 and the chucking piece 4 the same with spacing groove 3 quantity,

spacing groove

3 and 4 cooperation of chucking piece one by one for it rotates with outer impeller 2 synchronization to guarantee in impeller 1, if spacing groove 3 and chucking piece 4 do not mutually support, then with the outer impeller 2 of motor connection or interior impeller 1 rotate alone. The number of the limiting grooves 3 and the clamping blocks 4 is multiple, and the arrangement mode enables the connection between the inner impeller 1 and the outer impeller 2 to be firm compared with the arrangement mode of only one limiting groove 3 and one clamping block 4.

The limiting groove 3 can be arranged on the inner impeller 1 or the outer impeller 2, and correspondingly, the clamping block 4 is arranged on the impeller which is different from the limiting groove 3. When the limiting groove 3 is arranged on the inner impeller 1, the width of the limiting groove 3 is gradually increased from the outer side of the inner impeller 1 to the center of the inner impeller 1, the limiting groove 3 comprises two limiting groove walls which are perpendicular to each other, the clamping block 4 can be movably arranged in the limiting groove 3, namely the clamping block 4 can freely move in the limiting groove 3, because the width of the limiting groove 3 is gradually increased from the outer side of the inner impeller 1 to the center of the inner impeller 1, when the outer impeller 2 rotates clockwise, the clamping block 4 which is acted by centrifugal force is positioned at the outermost side of the inner impeller 1, the inner impeller 1 and the outer impeller 2 are clamped through the clamping block 4, and at the moment, the inner impeller 1 and the outer impeller 2 rotate together in the same direction; when the outer impeller 2 rotates anticlockwise, the clamping block 4 under the action of centrifugal force is positioned at the position, close to the center of the inner impeller 1, of the limiting groove 3, the inner impeller 1 is not connected with the outer impeller 2, and the inner impeller 1 is static relative to the outer impeller 2. Specifically, in order to enable stable connection between the inner pulsator 1 and the outer pulsator 2, the limiting groove 3 is provided at the bottom of the inner pulsator 1.

More specifically, the clamping block 4 is a roller, and when the roller rotates clockwise around the outer impeller 2, the roller clamps the inner impeller 1 and the outer impeller 2, and when the outer impeller 2 rotates counterclockwise, the roller is arranged in a non-contact manner with the vertical side wall of the outer impeller 2. In order to prevent the outer impeller 2 from rotating in the anticlockwise direction, the position of the clamping block 4 is changed to cause the clamping connection of the inner impeller 1 and the outer impeller 2, and the clamping block 4 is connected with the inner impeller 1 through the elastic element 5. The elastic element 5 is preferably a spring, but may of course also be an elastic rubber column in other embodiments.

The outer impeller 2 comprises an outer impeller disc 21 and an outer impeller shaft 22, the outer impeller shaft 22 penetrates through the center of the outer impeller disc 21, an accommodating cavity for accommodating the inner impeller 1 is formed between the outer impeller shaft 22 and the outer impeller disc 21, the top end of the outer impeller shaft 22 penetrates through the center of the inner impeller 1, the inner impeller 1 can rotate around the outer impeller shaft 22, the clamping block 4 is located between the inner impeller 1 and the outer impeller 2, and the clamping block 4 can freely move in a cavity formed by the inner impeller 1 and the outer impeller 2 in the overall static state of the impeller.

The impeller also comprises a fixing piece 6 for fastening the inner impeller 1 and the outer impeller 2, wherein the fixing piece 6 is arranged at the top end of the outer impeller shaft 22 and prevents the inner impeller 1 from being separated from the outer impeller shaft 22 in the rotating process, and the effect of limiting the inner impeller 1 is achieved. Be provided with first arch 23 on outer impeller disc 21, this first arch 23 pivoted setting is on outer impeller disc 21, first arch 23 is when outer ripples rotates, can rotate under the impact of rivers, and disturb the rivers direction, be provided with the protruding 12 of second at the surface of inner impeller 1, the purpose that sets up the protruding 12 of second is the same with the purpose that sets up first arch 23, all be for disturbing the rivers direction, the setting of four first protruding 23 circumference equipartitions is on the surface of outer impeller disc 21 simultaneously, and the setting of the protruding 12 circumference equipartitions of four second is on inner impeller 1, first protruding 23 of course and the protruding 12 of second also can only the circumference setting, and the equipartition setting of non-.

In the pulsator provided in this embodiment, the inner pulsator 1 and the outer pulsator 2 rotate simultaneously or the inner pulsator 1 is stationary with respect to the outer pulsator 2 according to the forward and reverse rotation of the shaft of the motor 9. When interior impeller 1 rotates with outer impeller 2 simultaneously, the rivers state is comparatively single, but when interior impeller 1 is static for outer impeller 2, make first rivers state when outer impeller 2 rotates, interior impeller 1 can the pivoted setting on outer impeller 2, receive the influence of first rivers state, can produce second rivers state, but second rivers state is not regular rivers state, thereby make the rivers state in the pail actually be pluralism coexistence jointly, thereby guarantee that the impeller can not twine the clothing at the during operation, and can not reduce the degree of clothing wearing and tearing, protect the clothing, improve user satisfaction.

The embodiment further provides a washing machine, as shown in fig. 3, including an inner tub 7, an outer tub 8, a motor 9, and a pulsator provided in embodiment 1, wherein the pulsator is hermetically connected to a transmission shaft of the motor 9. The impeller is arranged in the washing machine, so that compared with the existing washing machine, the washing machine can realize richer water flow states in the washing barrel, and clothes in the washing barrel are impacted by water flows in different directions at the same time, so that the clothes are prevented from being wound and abraded in a single water flow state.

Example 2

In the present embodiment, as shown in fig. 4, the one-way clutch mechanism includes a stopper groove 3 and a chuck block 4. The limiting groove 3 is arranged on the outer impeller 2, specifically, the limiting groove 3 is formed by a wedge-shaped bulge 10 arranged on the inner side wall of the outer impeller 2 and the inner side wall of the outer impeller 2, the wedge-shaped bulge 10 is circumferentially distributed on the inner side wall of the outer impeller 2, and the large end of the wedge-shaped bulge 10 is close to the small end of the adjacent wedge-shaped bulge 10; the clamping block 4 is arranged at the bottom of the inner impeller 1, when the outer impeller 2 rotates clockwise, the free end of the clamping block 4 is abutted against the wall of the limiting groove 3 (namely the large end of the wedge-shaped bulge 10), the clamping block 4 is actually an elastic barrier arm, and the clamping block 4 is circumferentially and uniformly distributed on the outer side wall of the inner impeller 1 so as to enable the outer impeller 2 and the inner impeller 1 to rotate coaxially; when the outer impeller 2 rotates anticlockwise, the clamping block 4 and the wall of the limiting groove 3 are arranged in a slipping mode so that the inner impeller 1 is static relative to the outer impeller 2, and the inner impeller 1 does not rotate along with the outer impeller 2.

Certainly, the elastic barrier arm may be integrally disposed with the outer impeller 2, as shown in fig. 5, or the elastic barrier arm may be sleeved on the inner impeller 1, the inner impeller 1 is provided with the engaging protrusion 11, the fastening block 4 is disposed on the outer side wall of one mounting ring 41, and the bottom of the inner impeller 1 is embedded in the mounting ring 41, so as to connect the fastening block 4.

It is noted that the foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. The impeller is characterized by comprising an inner impeller (1) and an outer impeller (2) which are coaxially arranged, wherein a one-way clutch mechanism is arranged between the inner impeller (1) and the outer impeller (2), one driving side can drive the other driving side to synchronously rotate when rotating along one direction, and the driving side can independently rotate when rotating along the opposite direction.

2. The pulsator according to claim 1, wherein the one-way clutch mechanism comprises at least one limiting groove (3) and clamping blocks (4) in the same number as the limiting groove (3), and the limiting groove (3) and the clamping blocks (4) are fitted one by one to rotate the inner pulsator (1) and the outer pulsator (2) synchronously.

3. The impeller of claim 2, wherein when the limiting groove (3) is arranged on the inner impeller (1), the width of the limiting groove (3) is gradually increased from the outer side of the inner impeller (1) to the center of the inner impeller (1), and the clamping block (4) is movably arranged in the limiting groove (3).

4. The impeller of claim 3, characterized in that the limiting groove (3) is arranged at the bottom of the inner impeller (1).

5. The impeller of claim 3, characterized in that the clamping blocks (4) are rollers which clamp the inner impeller (1) and the outer impeller (2) when the outer impeller (2) rotates in one direction and which are arranged in non-contact with the vertical side walls of the outer impeller (2) when the outer impeller (2) rotates in the other direction.

6. The impeller according to claim 3, characterized in that the clamping block (4) is connected with the inner impeller (1) by an elastic element (5).

7. The impeller of claim 2, wherein when the limiting groove (3) is arranged on the outer impeller (2), the clamping block (4) is arranged outside the inner impeller (1), and when the outer impeller (2) rotates along a direction, the clamping block (4) is abutted against the wall of the limiting groove (3) so that the outer impeller (2) and the inner impeller (1) rotate coaxially; when the outer impeller (2) rotates along the other direction, the clamping block (4) is arranged in a slipping way with the wall of the limiting groove (3) so that the inner impeller (1) is static relative to the outer impeller (2).

8. The pulsator according to any one of claims 2 to 7, wherein the outer pulsator (2) comprises an outer pulsator disk (21) and an outer pulsator shaft (22), the outer pulsator shaft (22) passes through the center of the outer pulsator disk (21), a receiving chamber for receiving the inner pulsator (1) is formed between the outer pulsator shaft (22) and the outer pulsator disk (21), the top end of the outer pulsator shaft (22) passes through the center of the inner pulsator (1), and the chucking block (4) is located between the inner pulsator (1) and the outer pulsator (2).

9. The pulsator according to claim 8, further comprising a fixing member (6) for limiting movement of the inner pulsator (1), wherein the fixing member (6) is disposed at a top end of the outer pulsator shaft (22).

10. A washing machine comprising the pulsator according to any one of claims 1 to 9.