CN103266445B - A kind of centrifuge washing method and washing machine - Google Patents

Abstract

The invention discloses a centrifugal washing method and a washing machine. In the method, the clothes in a rotatable inner cylinder rotate together with the inner cylinder, and cling to the inner wall of the inner cylinder under the action of centrifugal force. Sprinkle the clothes on the pipeline, penetrate the clothes and take away the stains under the action of centrifugal force, realize the washing of the clothes and reduce the wear and tear of the clothes; during the washing process, the liquid level of the washing liquid is always lower than the lowest point of the inner cylinder . The washing machine using this method avoids the high-speed rotating inner cylinder hitting the washing liquid to produce splashes and the sharp increase of washing foam; at the same time, it saves water resources, reduces the resistance of the washing liquid to the high-speed rotating inner cylinder, reduces power consumption, and makes washing more uniform , much cleaner.

Description

A centrifugal washing method and washing machine

technical field

The invention relates to the field of washing machines, in particular to a centrifugal washing method and a washing machine applying the method.

Background technique

The factors that affect the washing effect of clothes include the physical and chemical effects of detergent and water, mechanical force, washing temperature and washing time, etc. Detergent has the functions of wetting, emulsifying, dispersing, foaming, solubilizing, etc., and plays an important role in decomposing dirt. Mechanical force plays an important role in improving washing efficiency and saving time, especially for repelling detergent on clothes. The washing process carried out by the residue.

Whether it is manual washing or mechanical washing, the basic principle of decontamination is the same, that is, the laundry is soaked in the washing liquid, and the dirt on the washing is wetted, solubilized, expanded, emulsified, and dispersed by the washing liquid, which greatly weakens the cleaning effect. It improves the binding force between the dirt and the fiber, and makes it easy to disperse and detach the dirt attached to the surface of the fiber and deep into the fiber. For the dirt that penetrates into the pores of the washing fibers, the dirt must be squeezed out from the pores of the fibers by means of mechanical force. Therefore, the basic principle of laundry is the process of removing dirt from clothing by external force, and the key is the continuous "inhalation" and "extrusion" of washing liquid in clothing.

In order to realize the washing function based on the principle of "squeeze and suck", realize the circulation of washing liquid in and out of the fiber, so as to continuously wash out the stains. In the prior art, the principle of centrifugal separation is extended to the washing of clothes by the washing machine, and a centrifugal washing machine is created.

The centrifugal washing machine uses the centrifugal force generated by the rotation of the drum and the clothes to throw out the washing liquid in the clothes, and the washing liquid is continuously pumped into the center of the drum by the pump at the lower part of the drum and sprayed onto the clothes, so that the washing liquid continuously passes through the clothes. The centrifugal cycle effectively realizes the process of "squeezing and sucking" in the washing principle.

The existing literature discloses a dialysis washing device for a drum washing machine, which adds a circulating spray system to the existing drum washing machine, so that the washing liquid is continuously and evenly sprayed on the laundry in the inner drum, and the inner drum is used to With the centrifugal force of high-speed rotation, the washing liquid penetrates the washing and dialyzes the dirt in the washing fibers. In this washing device, the washing liquid will accumulate at the bottom of the outer cylinder after flowing out of the inner cylinder. When the washing machine is working, the water level in the outer cylinder is higher than the lowest point of the inner cylinder, resulting in the following defects:

1. When the inner cylinder is rotated at high speed for washing, the water higher than the lowest point of the inner cylinder will generate greater resistance to the rotating inner cylinder, resulting in unnecessary waste of energy;

2. When the high-speed rotating inner cylinder hits the washing liquid, water splashes and washing foam will increase sharply;

3. When the washing liquid is submerged in the lower part of the inner cylinder, the downwardly sprayed water flow directly enters the washing liquid and does not enter the clothes, so that the clothes stains cannot be taken away under the action of centrifugal force.

Contents of the invention

The technical problem solved by the present invention is to provide a centrifugal washing method and a washing machine in view of the above technical problems, so that the liquid level in the outer drum of the washing machine is always lower than the lowest point of the inner drum of the washing machine during the working process of the washing machine, so as to improve the washing efficiency and save energy.

For reaching this purpose, the present invention adopts following technical scheme:

A centrifugal washing method, comprising:

Make the clothes in the rotatable inner tube rotate together with the inner tube, and the clothes cling to the inner wall of the inner tube under the action of centrifugal force;

When the clothes rotate together with the inner drum, the washing liquid is sprayed from the inside of the inner drum to the clothes, and under the action of centrifugal force, the washing liquid penetrates the clothes and takes away the stains, and the washing of the clothes is realized through circulation;

During the washing process, the liquid level of the washing liquid is always lower than the lowest point of the inner cylinder.

The drum washing machine is equipped with a washing liquid level control device through which the liquid level of the washing liquid in the outer cylinder is controlled so that the liquid level of the washing liquid is always lower than the lowest point of the inner cylinder.

Further, the washing liquid level control device includes an overflow port, the overflow port is arranged on the outer cylinder, and its top opening is not higher than the lowest point of the inner cylinder, and the overflow port is connected to the liquid storage tank. When the liquid level of the washing liquid in the outer cylinder is higher than the top opening of the overflow port, the washing liquid will flow from the overflow port to the liquid storage tank, so that the liquid level of the washing liquid in the outer cylinder can be maintained at the height of the overflow port, and the liquid level of the washing liquid in the outer cylinder can be achieved. Always below the lowest point of the inner barrel.

As another solution, the washing liquid level control device includes an outer cylinder liquid level sensor, a drain pump, a drain pump controller and a drain valve. The drain pump is divided into two circuits, one is connected to the drain valve, and the other is connected to the liquid storage tank, when the liquid level sensor of the outer cylinder detects that the liquid level of the washing liquid in the outer cylinder is higher than the lowest point of the inner cylinder, the drain pump controller connected to it will control the drain valve to close, and start the drain pump, and the liquid level will be higher than the lowest point of the inner cylinder. The washing liquid is introduced into the liquid storage tank, so that the liquid level of the washing liquid in the outer cylinder is always lower than the lowest point of the inner cylinder.

Further, the liquid storage tank is connected with a circulation pump, and the water outlet of the circulation pump is connected with a water spray device, and the washing liquid can be circulated and washed through the circulation pump.

In particular, the water spray device is arranged axially along the center of the washing inner tub and extends into the inner tub. The holes are sprayed out to form multiple jets of water to the inner wall of the inner cylinder.

Preferably, the rotation speed of the inner cylinder during the washing process is greater than 400 rpm.

Preferably, the inner cylinder rotates in a single direction or alternately rotates in two directions during washing.

At the same time, a drum washing machine is provided, comprising an outer cylinder and a rotatable inner cylinder, which uses the above centrifugal washing method.

As a further preferred solution, the washing machine is also provided with a drying system for drying the washed clothes. By passing high-temperature air into the inner cylinder, the high-temperature air flows over the surface of the clothes to be dried to take away moisture, so that the clothes are dried quickly.

The beneficial effects of the present invention are as follows: during the washing process of the centrifugal washing machine, the clothes and the inner cylinder rotate at high speed together and cling to the inner wall of the inner cylinder. Penetrates through the clothes and takes away the stains to realize the washing of the clothes and reduce the wear and tear. During the washing process, the liquid level of the washing liquid is lower than the lowest point of the high-speed rotating inner drum, so as to avoid the splashing of the washing liquid and the sharp increase of washing foam when the high-speed rotating inner drum hits the washing liquid; at the same time, water resources are saved and the impact of the washing liquid on the high-speed rotating inner drum is reduced. The resistance, reduce power consumption, make the washing more even and cleaner.

Description of drawings

The present invention will be described in further detail below according to the drawings and embodiments.

Fig. 1 is the structural representation of centrifugal drum washing machine described in the embodiment;

Figure 2 is an enlarged view of the water spray structure of the centrifugal drum washing machine described in the embodiment;

Fig. 3 is a schematic structural diagram of the washing liquid level control device of the washing machine described in the embodiment;

Fig. 4 is a structural schematic diagram of another applicable washing liquid level control device.

In Figures 1 to 3:

101, shell; 102, outer cylinder; 103, inner cylinder; 104, small hole; 105, rotating shaft; 106, belt; 107, driving motor; 108, water flow pipe; 109, shaft sealing device; 110, spray hole; 111, circulation pump; 112, water storage tank; 113, perspective window; 114, water spray device; 115, drainage pump;

201, overflow port; 202, drain valve.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

As shown in Figures 1 to 3, a kind of centrifugal drum washing machine adopting the centrifugal washing method of the present invention is provided, which includes a casing 101, a cylindrical outer cylinder 102 for holding water, and an outer cylinder 102 is provided with a The rotatable cylindrical inner cylinder 103 is provided with regularly arranged small holes 104 on the side wall of the inner cylinder 103 . The inner cylinder 103 and the outer cylinder 102 are horizontally arranged coaxially, and a rotating shaft 105 is fixedly connected to the inner cylinder 103. The rotating shaft 105 passes through the center of the outer cylinder 102, and its protruding end is connected to the drive motor through a belt 106. 107.

The rotating shaft 105 is a hollow structure, and a water spraying device 114 is arranged inside it, and the water spraying device 114 includes a static water flow pipe 108 arranged inside the rotating shaft 105, and the water flow pipe 108 extends into the inner cylinder 103 , one end located in the inner cylinder 103 is suspended, the axial length of the water flow pipe 108 extending into the inner cylinder 103 is not higher than the axial length of the inner cylinder 103, the rotating shaft 105 and the water flow pipe 108 A shaft seal device 109 is arranged at the joint, and one end of the water flow pipe 108 suspended in the inner cylinder 103 is a closed structure. The device 114 is connected to the water outlet of the circulation pump 111 through a circulation pipeline.

The washing machine is provided with a washing liquid level control device, including an overflow port 201 on the outer cylinder 102 lower than the lowest point of the inner cylinder 103, and the overflow port 201 is connected to a liquid storage tank 112, when When the liquid level of the washing liquid in the outer cylinder 102 is higher than the position of the overflow port 201, the washing liquid flows from the overflow port 201 to the water storage tank 112, so that the liquid level of the washing liquid in the outer cylinder 102 drops to the position of the overflow port 201 Next, realize that the liquid level of the washing liquid in the outer cylinder 102 is always lower than the lowest point of the inner cylinder 103, the water storage tank 112 is connected to the water inlet of the circulation pump 111, and the washing liquid entering the water storage tank 112 is fed by the circulation pump 111 is driven into the water spray device 114 again to spray and clean the clothes. Through the washing liquid level control device, the washing liquid level is lower than the lowest point of the high-speed rotating inner cylinder, avoiding the high-speed rotating inner cylinder hitting the washing liquid to cause splashing and the sharp increase of washing foam; at the same time, water resources are saved and washing is reduced The resistance of the liquid to the high-speed rotating inner cylinder reduces the power consumption and makes the washing more uniform and cleaner.

The outer cylinder 102 is provided with a perspective window 113, a sealing window gasket is arranged between the perspective window 113 and the outer cylinder 102, and a drain pump 115 is provided at the bottom of the outer cylinder 102 for draining the outer cylinder. .

When the centrifugal drum washing machine is in the washing operation, the drive motor 107 drives the rotating shaft 105 and the inner cylinder 103 to rotate at high speed through the belt 106, and the clothes in the inner cylinder 103 rotate with the inner cylinder 103 at not less than 400 rpm, and the circulation pump 111, the washing liquid is driven into the water flow pipe 108 passing through the axis of the rotating shaft 105, and the washing liquid is sprayed into the clothes through the water spray hole 110 provided on the side wall of the water flow pipe 108. 103 together with the centrifugal force generated by the high-speed rotation will throw the washing liquid to the inner wall of the inner cylinder 103, and enter the outer cylinder 102 through the small hole 104 provided on the inner wall of the inner cylinder 103. The washing liquid after entering the outer cylinder 102 is collected at the bottom of the outer cylinder 103 under the action of gravity, and the washing liquid higher than the overflow port 201 flows to the liquid storage tank 112 through the overflow port, and then is pumped into the water flow pipeline 108 by the circulating pump 111. Clothes are spray washed.

In addition, the washing machine is also provided with a drying system for drying the washed clothes.

As another implementation of the washing liquid level control device, as shown in Figure 4, it includes an outer cylinder liquid level sensor, a drain pump 115, a drain pump controller, and a drain valve 202. The drain pump 115 is divided into two circuits, one Connect to the drain valve 202, and one way is connected to the liquid storage tank 112. When the liquid level sensor of the outer cylinder detects that the liquid level of the washing liquid in the outer cylinder 102 is higher than the lowest point of the inner cylinder 103, the drain pump controller connected to it controls the drain valve 202 Close and start the drain pump 115 to introduce the washing liquid higher than the lowest point of the inner cylinder 103 into the liquid storage tank 112, so that the liquid level of the washing liquid in the outer cylinder 101 is always lower than the lowest point of the inner cylinder 103. Similarly, the water storage tank 112 is connected to the water inlet of the circulation pump 111, and the washing liquid entering the water storage tank 112 is pumped into the water spray device 114 by the circulation pump 111 to spray and clean the clothes.

It should be stated that the above-mentioned specific implementation methods are only preferred embodiments of the present invention and the applied technical principles. Within the technical scope disclosed in the present invention, any changes or substitutions that are easily conceivable by those skilled in the art, All should be covered within the protection scope of the present invention.

Claims (7)

1. A centrifugal washing method, characterized in that, comprising: Make the clothes in the rotatable inner tube rotate together with the inner tube, and the clothes cling to the inner wall of the inner tube under the action of centrifugal force; When the clothes rotate together with the inner drum, the washing liquid is sprayed from the inside of the inner drum to the clothes, and under the action of centrifugal force, the washing liquid penetrates the clothes and takes away the stains, and the washing of the clothes is realized through circulation; During the washing process, the liquid level of the washing liquid is always lower than the lowest point of the inner cylinder; the drum washing machine is equipped with a liquid level control device for the washing liquid, and the liquid level of the washing liquid in the outer cylinder is controlled by the liquid level control device, so that The liquid level of the washing liquid is always lower than the lowest point of the inner cylinder; The washing liquid level control device includes an overflow port, the overflow port is arranged on the outer cylinder, the top opening of which is not higher than the lowest point of the inner cylinder, and the overflow port is connected to the liquid storage tank, when washing in the outer cylinder When the liquid level of the washing liquid is higher than the top opening of the overflow port, the washing liquid flows from the overflow port to the liquid storage tank, so that the liquid level of the washing liquid in the outer cylinder is kept to the height of the overflow port, so that the liquid level of the washing liquid in the outer cylinder is always lower than the lowest point of the inner cylinder; Alternatively, the washing liquid level control device includes an outer cylinder liquid level sensor, a drain pump, a drain pump controller, and a drain valve. When the cylinder liquid level sensor detects that the liquid level of the washing liquid in the outer cylinder is higher than the lowest point of the inner cylinder, the drain pump controller connected to it controls the drain valve to close and starts the drain pump to introduce the higher part of the washing liquid into the liquid storage tank. The liquid level of the washing liquid in the drum is always lower than the lowest point of the inner drum. 2. The centrifugal washing method according to claim 1, wherein the liquid storage tank is connected with a circulation pump, and the water outlet of the circulation pump is connected with a water spray device, and the washing liquid can be circulated and washed through the circulation pump. 3. The centrifugal washing method according to claim 2, characterized in that the water spray device is arranged axially along the center of the washing inner cylinder and extends into the inner cylinder, the front end of which is sealed, and many spraying devices are arranged on the pipeline along the axial direction. The water hole, under the action of the circulation pump, the washing water is sprayed out through the water spray hole, forming multiple water jets to the inner wall of the inner cylinder. 4. The centrifugal washing method according to claim 1, characterized in that, the rotation speed of the inner cylinder during the washing process is greater than 400 rpm. 5 . The centrifugal washing method according to claim 1 , wherein the inner cylinder rotates in a single direction or alternately rotates in two directions during washing. 6 . 6. A drum washing machine, comprising an outer tub and a rotatable inner tub, characterized in that the centrifugal washing method according to claim 1 is used. 7. The drum washing machine according to claim 6, characterized in that the washing machine is further provided with a drying system for drying the washed clothes.