CN109295650B

CN109295650B - Pulsator washing machine

Info

Publication number: CN109295650B
Application number: CN201710612246.8A
Authority: CN
Inventors: 汪永琪; 汪伟东
Original assignee: Qijing Machinery Co Ltd
Current assignee: Qijing Machinery Co Ltd
Priority date: 2017-07-25
Filing date: 2017-07-25
Publication date: 2021-01-29
Anticipated expiration: 2037-07-25
Also published as: CN109295650A

Abstract

The invention relates to a pulsator washing machine, which comprises a washing barrel, a pulsator, a driving mechanism and an auxiliary shaft which can be rotatably arranged in the washing barrel, wherein the pulsator can be rotatably arranged above the inner bottom surface of the washing barrel, the driving mechanism is connected with the washing barrel and the pulsator, the axis of the auxiliary shaft is parallel to or coincided with the axis of the pulsator, a water storage cavity which can be communicated with a water supply system is arranged in the auxiliary shaft, the periphery of the auxiliary shaft is provided with radially extending spokes, and the spokes are internally provided with flow channels which can spray water in the water storage cavity to the inner wall of the washing barrel. When the washing machine is used, a large amount of water is not required to be injected into the outer barrel, only a small amount of water is required to wet clothes, and in the washing process, the centrifugal force generated by the rotation of the auxiliary shaft can throw the water in the water storage cavity to the inner wall of the washing barrel through the runners on the shaft spokes and penetrate through the clothes, so that the water flow can effectively penetrate through the clothes in the whole washing process, the washing effect is improved, the water consumption and the washing time are reduced, the friction of the auxiliary shaft on the clothes is small, and the abrasion degree of the clothes is reduced.

Description

Pulsator washing machine

Technical Field

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

Background

The pulsator washing machine is one of the common washing devices in daily life. In the existing pulsator washing machine, a pulsator is arranged in a washing barrel, and convex ribs are formed on the upper surface of a disc-shaped substrate of the pulsator, so that the pulsator is driven by a motor to continuously rotate forward and backward during washing, and water flow in the barrel is stirred by the convex ribs on the pulsator to impact clothes, so that the purpose of washing is achieved. However, in the washing process of the impeller washing machine, the problems of inability of impeller washing, poor clothes turnover, incomplete washing, poor washing powder solubility and the like exist.

Chinese invention patent application publication No. CN106835599A, pulsator washing machine (application No. CN201710110662.8), discloses a structure, which includes: a housing; the washing barrel is rotatably arranged in the machine shell; the impeller is arranged above the inner bottom wall of the washing barrel; the driving assembly is connected with the impeller and is configured to drive the impeller to rotate and drive the impeller to move up and down; the dewatering shaft is connected with the washing barrel to drive the washing barrel to rotate; and the power unit is respectively connected with the dewatering shaft and the driving assembly to drive the dewatering shaft and the driving assembly to operate, and the power unit drives the driving assembly to control the impeller to move up and down in the washing process and/or after the washing and dewatering are stopped. The pulsator washing machine with the structure can enable the pulsator to move up and down in the washing barrel, so that the stirring force of the pulsator on clothes is increased, the washing effect is improved, but the structure still has the following problems:

(1) in order to ensure that the clothes can be soaked in water/detergent, excessive water needs to be injected into the washing barrel, so that the water consumption is increased, and the electricity consumption is large when the washing machine heats the water;

(2) the water consumption of the washing machine with the structure is preset or programmed according to the washing quantity, and the clothes are always soaked in water, so that water flow cannot effectively pass through the clothes for multiple times, and a satisfactory cleaning effect can be achieved only by washing for a long time, thereby causing energy waste to a great extent;

(3) the long-time washing generates friction to the laundry, resulting in abrasion of the laundry to some extent.

Therefore, the structure of the current pulsator washing machine is to be further improved.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides the pulsator washing machine which can enable water flow to effectively penetrate through clothes, effectively reduce water consumption and washing time, reduce clothes abrasion and achieve a good washing effect.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a pulsator washing machine, includes washtub, impeller and actuating mechanism, the interior bottom surface top of washtub can be located with rotating to the impeller, actuating mechanism is connected with washtub, impeller and is used for driving washtub, impeller to rotate, its characterized in that: the washing machine also comprises an auxiliary shaft which can be rotatably arranged in the washing barrel, the axis of the auxiliary shaft is parallel to or coincided with the axis of the impeller, a water storage cavity which can be communicated with a water supply system is arranged in the auxiliary shaft, the periphery of the auxiliary shaft is provided with a spoke which extends in the radial direction, and a flow channel which can spray water in the water storage cavity to the inner wall of the washing barrel is arranged in the spoke.

Preferably, the spokes are arranged along the axial direction of the auxiliary shaft, at least two spokes are arranged at intervals, and the flow passages on each spoke are multiple. The number of the spokes is preferably three, so that the clothes can be washed efficiently on the basis of keeping the water flow spraying pressure high.

Preferably, an arc-shaped transition surface arched towards the axis of the auxiliary shaft is formed between adjacent spokes, so that clothes are prevented from being stuck by the spokes after being stirred by the impeller, and friction to clothes is reduced.

In each of the above preferred embodiments, the driving mechanism includes a first motor and a second motor, the first motor is connected to the washing tub through a first connecting shaft and independently drives the washing tub to rotate, and the second motor is connected to the pulsator and the auxiliary shaft through a second connecting shaft and independently drives the pulsator and the auxiliary shaft to rotate. By adopting the structure, the speed and the direction of the two motors can be independently controlled, and clothes can be quickly and efficiently washed. Of course, the first driving mechanism and the second driving mechanism can also adopt the same motor, and the speed and the direction of the two motors can be independently controlled through a conventional transmission structure such as a belt pulley.

In order to facilitate installation, a third connecting shaft which can penetrate through the impeller and is radially limited with the impeller is formed by extending the lower end of the auxiliary shaft backwards, and the auxiliary shaft is connected with the impeller into a whole through the third connecting shaft.

Preferably, the first motor and the second motor are arranged up and down, the first connecting shaft is of a tubular structure which is communicated up and down, the second connecting shaft can be rotatably arranged in the first connecting shaft in a penetrating mode and is coaxially arranged with the first connecting shaft, the second connecting shaft is communicated up and down, the upper end of the second connecting shaft is communicated with the water storage cavity of the auxiliary shaft, and the lower end of the second connecting shaft is connected with a water supply system.

Preferably, a gap is formed between the second connecting shaft and the first connecting shaft, and a sliding bearing for supporting the second connecting shaft is installed in the gap. By adopting the structure, the rigidity and the stability of the integral structure formed by the first connecting shaft, the second connecting shaft and the two motors can be greatly improved.

Preferably, the first motor and the second motor are arranged on the washing machine through at least one mounting seat.

Preferably, the pulsator washing machine further comprises an outer tub, the washing tub is rotatably disposed in the outer tub, and a water level sensor capable of sensing a water level in the outer tub is disposed on the outer tub.

Preferably, the water supply system includes a main flow passage, a first sub flow passage and a second sub flow passage, a water inlet valve is disposed at an upstream of the main flow passage, the main flow passage is communicated with the water storage chamber of the auxiliary shaft by the first sub flow passage, the main flow passage is connected with the outer tub by the second sub flow passage, and a check valve capable of preventing water from flowing from the outer tub to the main flow passage is disposed on the second sub flow passage.

Compared with the prior art, the invention has the advantages that: the invention has simple and reasonable structure, the auxiliary shaft which can penetrate through the impeller and extend towards the upper end opening of the washing machine is arranged in the washing barrel, and the periphery of the auxiliary shaft is provided with the spokes which can spray water towards the inner wall direction of the washing barrel.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural view of the auxiliary shaft of FIG. 2;

FIG. 4 is a schematic diagram of an embodiment of the present invention with a water supply system.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 4, the pulsator washing machine of the present embodiment includes an outer tub 6, a washing tub 1, a pulsator 2, a driving mechanism 3 and an auxiliary shaft 4, wherein the washing tub 1 is rotatably disposed in the outer tub 6, the pulsator 2 is rotatably disposed above an inner bottom surface of the washing tub 1, and the driving mechanism 3 is connected to the washing tub 1 and the pulsator 2 and is used to drive the washing tub 1 and the pulsator 2 to rotate. An auxiliary shaft 4 is rotatably provided in the washing tub 1, and an axis of the auxiliary shaft 4 is parallel to or coincides with an axis of the pulsator 2. The driving mechanism 3 includes a first motor 31 and a second motor 32, the first motor 31 independently drives the washing tub 1 to rotate, and the second motor 32 independently drives the pulsator 2 and the auxiliary shaft 4 to rotate.

In this embodiment, the auxiliary shaft 4 is disposed at the axial center of the washing tub 1 along the length direction, and the rear end of the auxiliary shaft 4 is opened forward with a water storage chamber 41 disposed along the length direction of the auxiliary shaft 4 and capable of communicating with the water supply system 5. The periphery of auxiliary shaft 4 has three spokes 42 that radially extend, and each spoke 42 respectively along the whole setting of auxiliary shaft 4's axial to mutual interval arrangement, all offer a plurality of runner 421 that can spout the water in the water storage chamber 41 to washing tub 1 inner wall on each spoke 42, and in this embodiment, under the installation of auxiliary shaft 4 completion state, the flow direction of runner 421 is perpendicular to washing tub 1 inner wall and arranges to the injection effect of reinforcing to the clothing. An arc transition surface 43 is formed between two adjacent spokes 42 and arched towards the axis of the auxiliary shaft 4 to reduce the friction on the clothes.

As shown in fig. 2, a third connecting shaft 44 capable of penetrating through the pulsator 2 and radially limiting the position of the pulsator 2 is formed at the lower end of the auxiliary shaft 4 extending rearward, and the auxiliary shaft 4 is integrally connected to the pulsator 2 through the third connecting shaft 44. The first motor 31 and the second motor 32 in this embodiment are disposed up and down, the first motor 31 is connected to the washing tub 1 through a first connecting shaft 311, and the second motor 32 is connected to the auxiliary shaft 4 through a second connecting shaft 321. The first connecting shaft 311 is a tubular structure penetrating vertically, the second connecting shaft 321 is relatively rotatably inserted into the first connecting shaft 311 and coaxially arranged with the first connecting shaft 311, a gap is provided between the second connecting shaft 321 and the first connecting shaft 311, and a sliding bearing 301 for supporting the second connecting shaft 321 is installed in the gap. The first motor 31 and the second motor 32 in this embodiment are mounted on the washing machine through a mounting base 33, the first connecting shaft 311 is connected with the washing tub 1, and the second connecting shaft 321 is connected with the auxiliary shaft 4.

The second connecting shaft 321 in this embodiment is vertically penetrated, the upper end of the second connecting shaft is communicated with the water storage cavity 41 of the auxiliary shaft 4, the lower end of the second connecting shaft is connected with the water supply system 5, and water/detergent can enter the water storage cavity 41 of the auxiliary shaft 4 through the hollow second connecting shaft 321. The water supply system 5 includes a main flow passage 51, a first branch flow passage 52 and a second branch flow passage 53, wherein a water inlet valve 511 is disposed at the upstream of the main flow passage 51, the first branch flow passage 52 connects the main flow passage 51 with the water storage chamber 41 of the auxiliary shaft 4, the second branch flow passage 53 connects the main flow passage 51 with the outer tub 6, and a check valve 531 capable of preventing water from flowing from the outer tub 6 to the main flow passage 51 is disposed on the second branch flow passage 53. The outer barrel 6 is also provided with a water level sensor 7 which can sense the water level in the outer barrel 6.

When the pulsator washing machine of the embodiment is used, clothes are firstly moistened, at the moment, the rotating speed of the auxiliary shaft 4 with the spokes 42 is higher than that of the washing barrel 1, the water inlet valve 511 is opened, and water sprayed from the flow passages 421 on the spokes 42 begins to moisten the clothes; during washing, the clothes are stirred upwards under the action of the impeller 2 and scattered to the inner wall of the washing barrel 1, when the clothes contact the auxiliary shaft 4 which rotates rapidly, the clothes are stretched and unfolded on the washing barrel 1 due to the different rotating speeds of the auxiliary shaft 4 and the washing barrel 1, water/detergent is continuously sprayed on the clothes, the centrifugal force enables the water/detergent to pass through the clothes at high pressure, and the higher the speed is, the larger the flow rate of the water/detergent flowing through the clothes is, so that the clothes are washed. In the process, the outer barrel does not need to be filled with water at the beginning, so that the water consumption and the washing time are reduced. When the clothes are rinsed, the washing tub 1 and the auxiliary shaft 4 continue to rotate at the same speed, the water inlet valve 511 is opened, water is sprayed on the clothes, the water presses the clothes under the action of centrifugal force, and the drain valve is opened to drain the water. During dehydration, the washing barrel 1 and the auxiliary shaft 4 continue to rotate at the same speed, the water inlet valve is closed, the residual rinsing water is pressed out of the clothes by centrifugal force (the process is the same as that of the traditional washing machine), and the drain valve is opened for draining.

It should be noted that the structure and shape of the outer tub 6 and the washing tub 1 of the pulsator washing machine are not limited in the present invention, and other conventional structures of the outer tub 6 and the washing tub 1 in the prior art may be adopted.

Claims

1. The utility model provides a pulsator washing machine, includes washtub, impeller and actuating mechanism, the interior bottom surface top of washtub can be located with rotating to the impeller, actuating mechanism is connected with washtub, impeller and is used for driving washtub, impeller to rotate, its characterized in that: the washing machine also comprises an auxiliary shaft which can be rotatably arranged in the washing barrel, the axis of the auxiliary shaft is parallel to or coincided with the axis of the wave wheel, a water storage cavity which can be communicated with a water supply system is arranged in the auxiliary shaft, the periphery of the auxiliary shaft is provided with a spoke which extends in the radial direction, and a flow passage which can spray water in the water storage cavity to the inner wall of the washing barrel is arranged in the spoke;

before washing, the clothes are wetted, at the moment, the auxiliary shaft rotating speed with the shaft spokes is higher than the rotating speed of the washing barrel, and water sprayed from the upper flow channels of the shaft spokes wets the clothes; during washing, the clothes are stirred upwards under the action of the impeller and are scattered to the inner wall of the washing barrel, the rotation speeds of the auxiliary shaft and the washing barrel are different, when the clothes contact the auxiliary shaft which rotates rapidly, the clothes are stretched and unfolded on the washing barrel, water and/or detergent are continuously sprayed on the clothes, and the centrifugal force enables the water and/or the detergent to penetrate through the clothes at high pressure so as to wash the clothes; when the clothes are rinsed, the washing barrel and the auxiliary shaft continue to rotate at the same speed, water is sprayed on the clothes, and the water is discharged after being pressed through the clothes under the action of centrifugal force; during dewatering, the washing tub and the auxiliary shaft continue to rotate at the same speed, and the residual rinse water is pressed out of the laundry by centrifugal force.

2. The pulsator washing machine according to claim 1, wherein: the spokes are arranged along the axial direction of the auxiliary shaft in a whole manner, at least two spokes are arranged at intervals, and the runners on each spoke are multiple.

3. The pulsator washing machine according to claim 2, wherein: an arc transition surface arched towards the axis of the auxiliary shaft is formed between every two adjacent shaft spokes.

4. The pulsator washing machine according to claim 1, wherein: the driving mechanism comprises a first motor and a second motor, the first motor is connected with the washing barrel through a first connecting shaft and independently drives the washing barrel to rotate, and the second motor is connected with the impeller and the auxiliary shaft through a second connecting shaft and independently drives the impeller and the auxiliary shaft to rotate.

5. The pulsator washing machine according to claim 4, wherein: the lower end of the auxiliary shaft extends backwards to form a third connecting shaft which can penetrate through the impeller and is limited with the impeller in the radial direction, and the auxiliary shaft is connected with the impeller into a whole through the third connecting shaft.

6. The pulsator washing machine according to claim 4, wherein: the first motor and the second motor are arranged up and down, the first connecting shaft is of a tubular structure which is communicated up and down, the second connecting shaft can penetrate through the first connecting shaft in a relatively rotating mode and is arranged coaxially with the first connecting shaft, the second connecting shaft is communicated up and down, the upper end of the second connecting shaft is communicated with the water storage cavity of the auxiliary shaft, and the lower end of the second connecting shaft is connected with a water supply system.

7. The pulsator washing machine according to claim 6, wherein: a gap is formed between the second connecting shaft and the first connecting shaft, and a sliding bearing for supporting the second connecting shaft is installed in the gap.

8. The pulsator washing machine according to claim 7, wherein: the first motor and the second motor are arranged on the washing machine through at least one mounting seat.

9. The pulsator washing machine as claimed in any one of claims 1 to 8, wherein: the washing machine further comprises an outer barrel, the washing barrel can be rotatably arranged in the outer barrel, and a water level sensor capable of sensing the water level in the outer barrel is arranged on the outer barrel.

10. The pulsator washing machine according to claim 9, wherein: the water supply system comprises a main runner, a first branch runner and a second branch runner, wherein a water inlet valve is arranged at the upper stream of the main runner, the main runner is communicated with a water storage cavity of the auxiliary shaft through the first branch runner, the main runner is connected with the outer barrel through the second branch runner, and a one-way valve capable of preventing water flow from flowing to the main runner from the outer barrel is arranged on the second branch runner.