CN104947387B - A kind of water-saving filter device of washing machine cycles with self-cleaning function and washing machine - Google Patents

Abstract

The invention discloses a circulating water-saving filtering device for washing machine with self-cleaning function and a washing machine. The device includes a filtering container and a filtering mechanism. The filtering mechanism is rotatably arranged inside the filtering container. The water flow drives the filter mechanism to rotate and sprays the self-cleaning mechanism of the filter mechanism. The washing machine includes an outer tub of the washing machine, and the outer tub, the flocculation device, the filtering device and then the outer tub are cyclically connected to the outer tub through pipelines in sequence, wherein the flocculation device includes a flocculation container communicated with the outer tub and a flocculant injection into the flocculation container. The filter is drained from the outer barrel to the flocculation container for flocculation treatment; the filter device includes a filter container and a filter mechanism arranged in the filter container, the filter container is respectively connected with the flocculation container and the outer barrel, and the flocculated water in the flocculation container is then passed through After filtering by the filter mechanism, it is discharged into the outer barrel for repeated use. The invention improves the degree of automation, has a simple structure, and can save energy consumption.

Description

A washing machine circulating water-saving filter device with self-cleaning function and washing machine

technical field

The invention relates to a washing machine circulating water treatment device, in particular to a washing machine circulating water saving device using a flocculation filtration method, in particular to a washing machine circulating water saving filtration device with self-cleaning function and a washing machine.

Background technique

With the improvement of people's living standards, washing machines have now become one of the main household appliances in people's daily life. The laundry process of the washing machine mainly includes several stages of washing, rinsing, and drying. During the washing stage, the washing machine enters water and detergent to wash the clothes. , after entering the rinsing stage, in order to rinse the stains and residual detergent, it is necessary to enter more water or perform more rinsing times to rinse the clothes, which will inevitably consume a lot of water resources, even for a water-saving front-loading washing machine, in order to Rinse clothes also need to be rinsed at least twice, and this process consumes at least 30L of tap water. Sometimes there are fewer stains on the clothes or less detergent is put in, and it may be rinsed twice. However, because the user chooses 3 rinses, it will inevitably lead to waste of water resources. For example, a 6Kg fully automatic washing machine usually takes two rinses. The basic water consumption of rinsing water is about 100 liters. How to save water and electricity while washing clothes has always been one of the focuses of consumers.

So far, there is no water purification and recycling device for household washing machines. Even the so-called washing machines with water-saving functions generally install a water storage tank on the side of the washing machine, and use a water pump for water injection and drainage. Rinse 3 times to save water. However, the water after washing cannot be preserved, and at the same time, the structure of the washing machine itself is complicated and bulky, which is not conducive to transportation, recycling, and the like. Due to the limitations of volume, structure and flexibility, the original function of the washing machine and the function of the water-saving tank itself are affected. On the basis of existing laundry methods, in order to better save water resources, many manufacturers have invested a lot of research and development.

The existing washing machine has the function of circulating water, which only plays the role of filtering lint, washing uniformly, or adding ozone and heavy metal ions to sterilize. No improvement in water consumption and no fundamental improvement in cleaning.

For the recycling of laundry water, after consulting relevant patent documents, such as the "Water Saving Device for Circulating Water in Washing Machines" with the application number of 200810072420.5, the washing water is input into a water tank for purification treatment. According to the invention, the washing water of the first pass is directly discharged without purification, and the rinsing water of the second and third passes is purified for use in the next washing.

Among the above technologies, the "recycling water technology" is used after purifying the rinsing water. This technology cannot recycle the first washing water (initial washing water), and the purified water should be reserved for the next washing, and cannot be used in the current washing. Use when doing laundry.

Chinese Patent Application No. 03256181.4 discloses a water-saving washing machine, which is provided with a preliminary filtering device in front of the water outlet of the washing tub, and is also provided with a water storage bucket. In the filter device, the flocculation tank is connected with the washing tub through the pipeline, the flocculation tank also has a sewage outlet, and the pipeline is provided with a pump.

Since the filter device with the above structure does not have a cleaning function, after a long time of use, the filter device will be blocked, which will affect the water circulation treatment.

The present invention has been made in view of this.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a cycle water-saving filter device for washing machines with a simple structure and a self-cleaning function.

Another object of the present invention is to provide a washing machine with the circulating water-saving filtering device.

In order to solve the above-mentioned technical problems, the basic idea of the technical solution adopted in the present invention is: a circulating water-saving filter device for washing machines with self-cleaning function, including a filter container and a filter mechanism, and the filter mechanism is rotatably arranged inside the filter container , the filtering device also includes a self-cleaning mechanism that uses the influent water flow to drive the filtering mechanism to rotate and spray to clean the filtering mechanism.

Further, the filter mechanism includes a cylindrical filter frame and a filter screen arranged on the filter frame, both ends of the filter frame are pivotally connected to the filter container, one end of the filter frame is a rotary joint, and the other end is shaft-sealed.

Further, the filter container is provided with a washing machine circulating water inlet, a water outlet for discharging the filtered water, and a sewage outlet for discharging the cleaning waste water to the outside, and the filtering water outlet is communicated with the rotary joint of the filtering mechanism.

Further, the axis of rotation of the filter mechanism and the horizontal plane have an inclined angle α, 0≤α≤30°, and the rotary joint is set at the lower end of the filter mechanism; by tilting or horizontally arranging the filter mechanism, not only can Filter area, speed up filtration, and facilitate filter cleaning.

Alternatively, the filter mechanism is vertically arranged in the filter container, and the rotary joint is arranged at the bottom end. The structure effectively utilizes the speed of the water flow to flush the filter screen, and the filter screen is cleaned more cleanly.

Further, the self-cleaning mechanism includes a spray head, the spray head is installed on the filter container, and the water spray direction acts on the surface of the filter mechanism to drive the filter mechanism to rotate. The water spraying direction of the nozzle is deviated from the axis of the filter mechanism and is inclined to the circumferential surface of the filter mechanism, which is close to the tangent direction of the cylindrical filter frame, and acts on the surface of the filter screen of the filter mechanism to achieve strong cleaning.

Further, the self-cleaning mechanism also includes paddles arranged on the surface of the filter mechanism, and the paddles are arranged corresponding to the water spray direction of the nozzle to transmit the power of the water flow to drive the filter mechanism to rotate, and to agitate the water flow in the filter container to flush the filter container. inner wall.

Further, the spray head is a tubular structure, one end is closed, the other end is connected with the cleaning water inlet, and the peripheral wall of the spray head is provided with at least one water spray port along the axial direction. The shape of the water spout is round, oval, elongated, etc. The length of the nozzle should ensure that the width of the water sprayed out is sufficient to cover the axial length of the entire filter screen.

Further, the spray head includes a nozzle and a water inlet pipe, the nozzle has a pressure equalizing water chamber and a water spray port which is communicated with the pressure equalizing water chamber to spray water outward, and the water inlet pipe extends into the pressure equalizing water chamber and extends to the pressure equalizing water chamber. One end of the water cavity is closed, and the other end is communicated with the cleaning water inlet. The peripheral wall of the water inlet pipe is provided with at least one water outlet that communicates with the pressure equalizing water chamber.

Further, the pressure-equalizing water chamber is an isosceles triangle-shaped chamber, the water inlet pipe extends from the top angle of the pressure-equalizing water chamber perpendicular to the bottom edge, the water spout is arranged at the bottom edge of the pressure-equalizing water chamber, and the water outlets are symmetrically distributed. on the peripheral wall of the water inlet pipe corresponding to the two waist directions.

Preferably, the water jets are arranged on both sides of the water inlet pipe at the bottom of the pressure equalizing water chamber, and the water outlet is in the shape of a long strip.

The washing machine of the present invention includes an outer tub of the washing machine, and the outer tub, the flocculation device, the filtering device and the outer tub are sequentially connected to the outer tub in a cyclic communication through pipelines, wherein,

A flocculation device, including a flocculation container communicated with the outer barrel and a flocculant dispenser for feeding the flocculant into the flocculation container, and the water is drained from the outer barrel to the flocculation container for flocculation treatment;

The filter device includes a filter container and a filter mechanism arranged in the filter container. The filter container is respectively connected with the flocculation container and the outer barrel, and the water after flocculation in the flocculation container is filtered by the filter mechanism and then discharged into the outer barrel for repeated use.

The circulating water treatment method of the washing machine of the present invention is as follows: after washing, the drained water passes through the flocculation device for flocculation treatment, the filter device for filtration treatment, and then discharges into the outer tub for rinsing, circulates the above water treatment process until the rinsing is completed, and opens the flocculation container for sewage discharge. The water from the outer barrel is discharged into the flocculation container for cleaning, and at the same time, the filter device is cleaned with clean water.

The main principle of the self-cleaning filter device of the present invention is to use water flow to flush the flocs and fine particles adhered to the filter screen, and finally solve the problems of sticking and clogging when the flocs are filtered. The flocculation mixture enters the filter container and is filtered by the filter screen to discharge clean water. If the water flow slows down during the drainage process or after the filter process is completed, the self-cleaning device is activated. After the tap water enters the nozzle, it is slanted onto the filter screen through the water nozzle, and the filter mechanism is rotated while driving. The filter screen is flushed, and the filter mechanism rotates to agitate the water flow while cleaning the inner wall of the filter container.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

The washing machine of the present invention adopts the flocculation filtration circulating water-saving equipment, and the entire washing process can be completed with only one water intake, which saves water resources to the maximum extent without affecting the washing efficiency; the filter device realizes self-cleaning, eliminating the need for manual cleaning and filtration The steps of the device improve the degree of automation, the structure is simple, and the energy consumption can be saved.

Description of drawings

1 is a schematic structural diagram of the circulating water-saving filter device for a washing machine according to the present invention;

Fig. 2 is the A-A direction schematic diagram of Fig. 1;

Fig. 3 is the B-B direction schematic diagram of Fig. 1;

4 is a schematic diagram of the assembly structure of another filter device according to the present invention;

Fig. 5 is the structural schematic diagram of the nozzle of the present invention;

Figure 6 is a schematic cross-sectional view of the nozzle of the present invention;

Fig. 7 is the C-C direction schematic diagram of Fig. 6;

8 is a schematic structural diagram of the washing machine according to the present invention;

FIG. 9 is a schematic structural diagram of the filter device and the flocculation device according to the present invention.

Fig. 10 is a schematic diagram showing the connection of circulating water in the washing machine of the present invention.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 4 , the circulating water-saving filter device 1 of the washing machine according to the present invention includes a filter container 11 and a filter mechanism 12 . The filter mechanism 12 is rotatably arranged inside the filter container 11 . The filter device 1 It also includes a self-cleaning mechanism for driving the filter mechanism 12 to rotate and spraying and cleaning the filter mechanism 12 by using the incoming water flow.

The filter container 11 of the present invention is provided with a washing machine circulating water inlet 111, a water outlet 112 for discharging the filtered water, and a sewage outlet 113 for discharging the cleaning waste water to the outside. The filter mechanism 12 includes a cylindrical filter frame 121 and a filter screen (not shown in the filter screen diagram) provided on the filter frame. Both ends of the filter frame 121 are pivotally connected to the filter container 11. Shaft seal; the water outlet 112 communicates with the rotary joint 122 of the filter mechanism.

The self-cleaning mechanism of the present invention includes a spray head 13, the spray head 13 is installed on the filter container 11, and the water spray direction acts on the surface of the filter mechanism 12 to drive the filter mechanism 12 to rotate. The water spraying direction of the spray head 13 can be set to deviate from the axis of the filter mechanism 12 obliquely to the circumferential surface of the filter mechanism rotation, close to the tangent direction of the cylindrical filter frame 121, and act on the surface of the filter mechanism screen to achieve strong cleaning.

The path of the water flow in the process of filtering the circulating water by the filter device 1 is: the nozzle 13 and the sewage outlet 113 are closed, the water inlet 111 enters the circulating water into the filter container 11, and the water filtered by the filter screen is filtered by the rotary joint at one end of the filter frame 121. 122. The water outlet 112 is discharged; the process of cleaning the filter device is as follows: the water inlet 111 and the water outlet 112 are closed, the nozzle 13 enters clean water to rinse the filter mechanism 12, and the filter mechanism 12 rotates and stirs the water to clean the inner wall of the filter container 11, the surface of the filter screen and the inner wall. After being washed away, it is discharged from the sewage discharge port 113 .

Example 1

As shown in FIG. 4 , the filter mechanism 12 in this embodiment is vertically arranged in the filter container 11 , the rotary joint 122 is arranged at the bottom end of the filter mechanism 12 , and the self-cleaning mechanism is arranged on the side wall of the filter container. The structure effectively utilizes water pressure and gravity to flush the filter screen, and the filter screen is cleaned more cleanly.

Embodiment 2

As shown in FIG. 2 and FIG. 3 , the difference between this embodiment and the above-mentioned first embodiment is that the axial direction L of the filter mechanism 12 and the horizontal plane R have an inclined angle α, 0≤α≤30°, preferably 1°≤α≤10°, preferably 1°≤α≤3°, the rotary joint 122 is arranged at the lower end of the filter mechanism 12; by tilting or horizontally arranging the filter mechanism, not only the filtering area can be increased, but the filtering speed can be accelerated , and facilitates filter cleaning.

The structure can be realized in the following ways: 1. The filter container is arranged horizontally, and the filter mechanism is arranged inclined;

Compared with the vertical arrangement of the filter mechanism in the first embodiment, the advantages of the filter mechanism in this embodiment are: 1. The filter area can be increased; 2. The force of the water spray is uniform and the rotation is stable; 3. The flocculation and filtration are uniform, not easy to block, and clean wide range.

Embodiment 3

As shown in FIG. 4 , the nozzle 13 in this embodiment has a tubular structure, one end is closed, and the other end is connected to the cleaning water inlet. The peripheral wall of the nozzle 13 is provided with at least one water nozzle 130 along the axial direction. The shape of the water spout 130 includes a circle, an ellipse, a long strip, etc., and the length of the spout should ensure that the width of the water sprayed out is sufficient to cover the entire axial length of the filter screen.

The tubular spray heads 13 can be provided in multiples, distributed on the side wall of the filter container 11 , and arranged parallel to the rotational axial direction of the filter mechanism 12 .

Embodiment 4

As shown in FIG. 5 to FIG. 7 , the spray head 13 in this embodiment includes a nozzle 131 and a water inlet pipe 132 . The nozzle 131 has a pressure equalizing water chamber 1311 and a water spray port 1312 which communicates with the pressure equalizing water chamber and sprays water outward. , the water inlet pipe 132 extends into the pressure-equalizing water chamber 1311, and one end extending into the pressure-equalizing water chamber 1311 is closed, and the other end is connected with the cleaning inlet water. Nozzle 1321.

Further, the pressure-equalizing water chamber 1311 is an isosceles triangle-shaped chamber, the water inlet pipe 132 extends from the top corner of the pressure-equalizing water chamber 1311 perpendicular to the bottom edge, and the water spout 1312 is arranged on the bottom side of the pressure-equalizing water chamber 1311. , the water outlets 1321 are symmetrically distributed on the peripheral wall of the water inlet pipe 132 corresponding to the two waist directions.

Preferably, the water spout 1312 is provided on both sides of the water inlet pipe 132 corresponding to the bottom edge of the pressure equalizing water cavity 1311, and the water outlet 1321 is elongated.

There are at least two nozzles 13, which are arranged on the upper side of the filter mechanism 12 parallel to the rotational axial direction of the filter mechanism 12, and use the spray water pressure and the gravity of falling water to drive the filter frame to rotate and clean the filter screen. During the rotation of the filter frame, the Scrub the water in the filter container to remove the dirt on the surface of the filter.

Embodiment 5

As shown in FIG. 3 , the self-cleaning mechanism described in this embodiment further includes paddles 14 disposed on the surface of the filter mechanism. The paddles 14 are arranged corresponding to the water spraying direction of the nozzle 13 to transmit the power of the water flow to drive the filter mechanism to rotate.

Further, there are a plurality of the paddles 14 , which are distributed along the circumference and the axial direction of the filter frame 121 and correspond to the spraying direction of the spray head 13 .

Embodiment 6

As shown in FIGS. 8 to 10 , the washing machine of the present invention includes, but is not limited to, a pulsator washing machine and a drum washing machine. The washing machine includes an outer tub 2 of the washing machine. And then to the outer tub 2 to circulate and communicate.

The flocculation device 4 includes a flocculation container 41 communicated with the outer barrel and a flocculant dispenser 5 for feeding the flocculant into the flocculation container 41, and the water is drained from the outer barrel 2 to the flocculation container 41 for flocculation treatment;

The filter device 1 includes a filter container 11 and a filter mechanism 12 arranged in the filter container 11. The filter container 11 is respectively connected with the flocculation container 41 and the outer barrel 2, and the water after the flocculation treatment in the flocculation container 41 is filtered by the filter mechanism 12 again. Discharge into outer tub 2 for reuse.

The circulating water treatment method of the washing machine according to the present invention is as follows: after washing, the water is drained to a circulating water treatment device, followed by a flocculation device for flocculation treatment, a filter device for filtration treatment, and then discharged into an outer tub for rinsing, and the above water treatment process is cycled to rinsing At the end, open the sewage outlet of the flocculation container and the sewage outlet of the filter container, drain the water from the outer barrel into the flocculation device for cleaning, and at the same time, enter clean water to clean the filter device.

Further, the washing machine of the present invention also includes an automatic detergent dispensing device 6, which is in the prior art, and preferably is a structure that utilizes negative water inlet pressure to extract the detergent for dispensing; the flocculant dispenser 5 of the present invention. It is also an automatic feeding structure. According to the amount of washing water and the turbidity of washing/rinsing water, the corresponding proportion of flocculant is automatically fed in each flocculation treatment; if the flocculant is in the form of flakes, the automatic feeding structure of the existing tablet detergent can be used. , if the flocculant is in the form of granules or powder, the quantitative delivery structure of the prior art is used.

The embodiments in the above-mentioned embodiments can be further combined or replaced, and the embodiments are only to describe the preferred embodiments of the present invention, and not to limit the concept and scope of the present invention. Various changes and improvements made to the technical solutions of the present invention by professional and technical personnel all belong to the protection scope of the present invention.

Claims (8)

1. a kind of water-saving filter device of washing machine cycles with self-cleaning function, including filtering container and filter mechanism, special Sign is: the filter mechanism is rotatably arranged in inside filtering container, and filter device further includes being driven using water inlet water flow Filter mechanism rotates and sprays the self-cleaning mechanism of cleaning filter structure, and the self-cleaning mechanism includes spray head, spray head installation In on filtering container, water spraying direction acts on filter mechanism surface, driving filter mechanism rotation, the spray head include nozzle and Water inlet pipe, nozzle have one to press water cavity and communicate the water jet sprayed water outward with pressure water cavity, and water inlet pipe extends to pressure water It is intracavitary, it extends to and presses closed at one end in water cavity, the other end be connected to cleaning water inlet, and water inlet pipe peripheral wall is equipped at least one and equal The water outlet that pressure water cavity communicates.

2. the water-saving filter device of a kind of washing machine cycles with self-cleaning function according to claim 1, feature exist In: the filter mechanism includes cartridge filtration frame and the strainer on filter frame, and filter frame both ends and filtering are held Device is pivotally connected, and one end is rotary joint, other end sealing.

3. the water-saving filter device of a kind of washing machine cycles with self-cleaning function according to claim 2, feature exist Washing machine cycles water water inlet is equipped in: the filtering container, by water outlet that filtered water is discharged and will clean waste water Sewage draining exit outside discharge, filtering water outlet are connected to filter mechanism rotary joint.

4. the water-saving filter device of a kind of washing machine cycles with self-cleaning function according to claim 2, feature exist In: the axial direction and horizontal plane of the filter mechanism rotation have a slanted angle α, 0 ° of α≤30 ° <, and rotary joint is set to filtering The lower one end of mechanism；Alternatively, the filter mechanism is set to vertically in filtering container, rotary joint is set to bottom end.

5. the water-saving filter device of a kind of washing machine cycles with self-cleaning function according to claim 1, feature exist In: the spray head is tubular structure, closed at one end, and the other end is connected to cleaning water inlet, and spray head peripheral wall is in axial direction equipped with At least one set of water jet.

6. the water-saving filter device of a kind of washing machine cycles with self-cleaning function according to claim 1, feature exist In: the pressure water cavity is an isosceles triangle shape chamber, and water inlet pipe extends from pressure water cavity apex angle perpendicular to bottom edge, water spray Mouth is set to bottom edge, and water outlet is symmetrically distributed on the water inlet pipe peripheral wall in corresponding two waist directions.

7. the water-saving filter device of a kind of washing machine cycles with self-cleaning function according to claim 1, feature exist In: the self-cleaning mechanism further includes the blade set on filter mechanism surface, and blade corresponds to the water spraying direction setting of spray head, with Transmit the power of water flow driving filter mechanism rotation.

8. a kind of washing machine with the circulating water-saving filter device as described in claim 1-7 is any, including outer barrel of washing machine lead to It crosses pipeline and outer barrel, flocculation plant, filter device is successively recycled into connection to outer barrel again, it is characterised in that:

Flocculation plant launches the flocculant dispenser of flocculant including the flocculation container being connected to outer barrel and into flocculation container, It is drained by outer barrel to flocculation treatment in flocculation container；

Filter device, including filtering container and set on filtering container in filter mechanism, filtering container respectively with flocculation container and Outer barrel connection is discharged into outer barrel after filtering the water after flocculation treatment in the container that flocculates using filter mechanism and reuses.