CN215518034U - Clothes dewatering device and washing machine applying same - Google Patents

Abstract

A clothes dehydrating device is characterized in that: comprises a washing chamber, a first water outlet and a second water outlet, wherein the first water outlet is provided with a first water outlet which can directly discharge water; the airtight chamber is communicated with the washing chamber and is provided with an air suction hole, and a water drainage hole is formed in the bottom of the airtight chamber; the sand core filter plate is arranged on the bottom surface of the inner cavity of the washing chamber; the vacuum pump is connected with the air exhaust hole of the airtight chamber; and the drain valve is used for controlling the opening or closing of the drain port of the airtight chamber, the inlet of the drain valve is communicated with the drain hole of the airtight chamber, the outlet of the drain valve is connected to the main water outlet pipe, and the first drain port is communicated with the main water outlet pipe. The utility model has the advantages that: the vacuum pumping mode is adopted to realize dehydration, the defect that the traditional high-speed rotation generates vibration is avoided, the whole structure is simple, the number of parts is greatly reduced, and the reliability of the whole machine is higher; the problem of rotation balance does not exist, the dewatering effect can be realized for a small amount of clothes or single clothes, and the practicability is higher.

Description

Clothes dewatering device and washing machine applying same

Technical Field

The utility model relates to a dewatering device, in particular to a clothes dewatering device and a washing machine applying the same.

Background

The washing machine generally has a dewatering procedure after washing, and both the drum washing machine and the impeller washing machine rely on the strong centrifugal force generated by the washing drum rotating at high speed to spin water out of clothes.

However, the centrifugal dewatering method of the washing drum rotating at a high speed has the following problems: 1. because of the eccentric reason of the weight of the clothes in the washing drum, vibration is inevitably generated, noise is generated by stepping, and the service life of the whole machine is influenced; 2. because the washing machine vibrates seriously during dehydration, the washing machine is often provided with a complex damping system (such as a spring, a damping support rod, a balancing weight, a balancing ring and the like), and the complex whole system and the high manufacturing cost are caused; 3. when washing a single piece of clothes or a small amount of clothes, eccentricity is often serious due to unbalanced scattering of the clothes, and thus the machine cannot perform a normal dehydration function due to a self-protection process.

Therefore, in the prior art, there is a usage method of an intelligent squeezing type washing machine with application number 201710511273.6, which discloses a usage method of a washing machine, during a washing process of the washing machine, clothes are put into an inner barrel, the clothes are squeezed and washed by a squeezing plate and washing water, after the washing water is drained, the clothes are squeezed and cleaned by the squeezing plate and cleaning tap water, after the clothes are cleaned, the cleaning tap water is drained, and then the clothes are vacuum-dewatered by a vacuum pump.

The above patent solves the problem that the common washing machine drags and twines each other when washing clothes, and can avoid the clothes from being off-line or deformed in the washing process; however, the squeezing device involved in the above patent is relatively complex in structure and large in occupied volume, and the effect of vacuuming and dehydrating the whole washing inner barrel is not good, and the squeezing device is mainly needed to be matched for dehydration, so that the operation is troublesome, and therefore, the existing dehydrating device is still to be further improved.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a clothes dehydrating apparatus with simple structure and good dehydrating effect in view of the above-mentioned prior art.

A second technical problem to be solved by the present invention is to provide a washing machine using the above-mentioned dehydration device in view of the above-mentioned prior art.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a clothes dehydrating device is characterized in that: the clothes dehydrating device comprises

The washing chamber is used for accommodating clothes to be washed and is provided with a first drainage port capable of directly draining water;

the airtight chamber is communicated with the washing chamber and is arranged below the washing chamber, the airtight chamber is provided with an air suction hole, and the bottom of the airtight chamber is provided with a water drainage hole;

the sand core filter plate is arranged on the bottom surface of the inner cavity of the washing chamber;

the vacuum pump is connected with the air pumping hole of the airtight chamber and is used for vacuumizing the airtight chamber;

and the drain valve is used for controlling the opening or closing of the drain port of the airtight chamber, the inlet of the drain valve is communicated with the drain hole of the airtight chamber, the outlet of the drain valve is connected to the main water outlet pipe, and the first drain port is communicated with the main water outlet pipe.

Preferably, the dewatering device further comprises a porous clothes separating plate which is tightly attached to the top surface of the sand core filter plate to prevent the metal zipper and the like of the clothes from scratching the sand core filter plate. The porous clothes separating plate enables clothes not to directly contact the sand core filter plate, the effect of protecting the sand core filter plate is achieved, meanwhile, the clothes and the first drainage port are separated, and the first drainage port is prevented from being blocked by the clothes.

In order to facilitate drainage, the porous clothes separating plate preferably comprises a main plate matched with the sand core filter plate in size and a wing part which is turned outwards and bent along the edge of the main plate to form a U shape, the first drainage port is formed in the washing chamber below the wing part, and a plurality of water leakage holes are formed in the wing part at intervals along the circumferential direction. The water in the washing chamber can be converged into the first water outlet through the water leakage hole, so that the common washing water in the washing chamber can be conveniently drained away.

In order to avoid the deformation and damage of the sand core caused by too high air pressure, it is further preferable that a plurality of first top pillars protruding outwards along the axial direction are arranged on the bottom surface of the inner cavity of the washing chamber, and the sand core filter plate is arranged on the first top pillars. Therefore, a certain gap is reserved between the sand core filter plate and the inner cavity bottom surface of the washing chamber, so that the sand core is prevented from being deformed due to high pressure.

Preferably, the outer bottom surface of the washing chamber is provided with a plurality of second top columns protruding outwards along the axial direction, and the bottom of the inner cavity of the airtight chamber is abutted against the second top columns. In the same way, a gap is reserved between the bottom of the washing chamber and the airtight chamber through the second top column, so that the bottom of the airtight chamber is prevented from being deformed due to overhigh vacuum degree, and meanwhile, a drain hole of the airtight chamber can be prevented from being blocked.

In order to facilitate the evacuation of the gas-liquid mixed washing water, preferably, a second water outlet is provided at the center of the washing chamber and is capable of communicating with the airtight chamber.

In order to facilitate the installation and the disassembly of the airtight chamber, preferably, the outer bottom surface of the washing chamber is further provided with an annular groove arranged along the circumferential direction, and the top edge of the airtight chamber is inserted into and fixed in the annular groove.

In order to ensure the air tightness of the airtight cavity and improve the vacuumizing effect, a first sealing ring is embedded in the annular groove as the optimal selection.

Preferably, a second sealing ring is arranged between the peripheral wall of the sand core filter plate and the inner cavity side wall of the washing cavity. Therefore, all gas can be ensured to enter the airtight chamber through the sand core filter plate, and the vacuumizing and dehydrating effect is improved.

In order to facilitate drainage, the first drainage port is preferably connected to a main drainage pipe through a first drainage pipe; and the water discharge hole of the airtight chamber is connected with the inlet of the water discharge valve through a second water discharge pipe.

In order to facilitate the vacuum pumping operation, it is preferable that the peripheral wall of the airtight chamber is opened with a pumping hole, and the vacuum pump is connected to the pumping hole through a pumping pipe.

In order to facilitate the control of drainage, preferably, the airtight chamber is provided with a water level detection device, the water level detection device comprises a fixedly arranged reed switch and a magnet floater capable of floating up and down along with liquid, the fixedly arranged height of the reed switch is a preset drainage water level height, and the drainage valve is opened in a state that the magnet floater is attracted with the reed switch. When the washing water in the airtight chamber reaches a certain degree, the water level monitoring device can realize water drainage.

In order to facilitate the installation and the limiting of the magnet floater, preferably, a floater accommodating cavity is further arranged in the airtight cavity, the upper end and the lower end of the floater accommodating cavity are respectively opened and communicated with the airtight cavity, the reed pipe is fixed on the outer side wall of the airtight cavity, and the magnet floater is accommodated in the floater accommodating cavity.

The technical scheme adopted by the utility model for solving the second technical problem is as follows: a washing machine comprises a main machine and an end cover, and is characterized in that: the clothes dewatering device is arranged in the main machine, wherein the washing chamber and the machine shell of the main machine are integrally formed, the washing chamber is a cylindrical washing barrel, and a gap is formed between the washing chamber and the inner wall of the machine shell.

Compared with the prior art, the utility model has the advantages that: the vacuum pumping mode is adopted to realize dehydration, the defect that the traditional high-speed rotation generates vibration is avoided, the whole structure is simple, the number of parts is greatly reduced, and the reliability of the whole machine is higher; the problem of rotation balance is avoided, the dewatering effect can be realized for a small amount of clothes or a single piece of clothes, and the practicability is higher; the washing machine is combined with a washing machine, the washing barrel for placing clothes does not need to rotate and move centrifugally, the machine does not generate vibration, and the noise is low.

Drawings

Fig. 1 is a partially exploded view of a washing machine according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a washing machine housing according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of a second embodiment of a washing machine housing according to the present invention.

Fig. 4 is an exploded perspective view of a laundry dehydrating apparatus according to an embodiment of the present invention.

Fig. 5 is a perspective sectional view of an airtight chamber of a laundry dehydrating apparatus according to an embodiment of the present invention.

Fig. 6 is a schematic view of a bottom pipe connection structure of a washing machine according to an embodiment of the present invention.

Fig. 7 is a perspective sectional view of an inner cavity of a washing machine according to an embodiment of the present invention.

Detailed Description

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

As shown in fig. 1, the embodiment discloses a washing machine, which comprises a main machine and an end cover 1, wherein the main machine comprises a casing 2 and a base 3, four rubber buffer supporting legs 31 are arranged below the base 3, and a clothes dewatering device a is arranged in the casing 2.

As shown in fig. 2 to 7, the clothes dehydrating apparatus a of the present embodiment includes a washing chamber 4 and an airtight chamber 5, the washing chamber 4 is used for accommodating clothes to be washed, the washing chamber 4 is opened with a first water outlet 41 capable of directly discharging water, the first water outlet 41 is capable of discharging washing water naturally flowing out after the clothes are washed, a second water outlet 42 capable of communicating with the airtight chamber 5 is opened at the center of the washing chamber 4, and the second water outlet 42 is used for discharging washing water generated after the clothes are vacuumized.

The airtight chamber 5 and the washing chamber 4 are communicated with each other, the airtight chamber 5 is disposed below the washing chamber 4, the airtight chamber 5 has a suction hole 51 for vacuum suction, and a drain hole 52 is opened at the bottom of the airtight chamber 5.

In order to facilitate the installation and the disassembly of the airtight chamber 5, the outer bottom surface of the washing chamber 4 is further provided with an annular groove 45 arranged along the circumferential direction, and the top edge of the airtight chamber 5 is inserted into and fixed in the annular groove 45. In order to ensure the air tightness of the airtight chamber 5 and improve the vacuum-pumping effect, a first sealing ring 451 is embedded in the annular groove 45. To facilitate the evacuation operation, an evacuation hole 51 is opened in the peripheral wall of the airtight chamber 5, and a vacuum pump 6 is connected to this evacuation hole 51 via an evacuation pipe 94 for effecting evacuation of the airtight chamber 5.

A sand core filter plate 7 (also called a "sintered filter") is arranged on the inner cavity bottom surface 43 of the washing chamber 4, and the sand core filter plate 7 can be a multi-layer porous material with a similar structure (for example, a plurality of nylon filter screens are closely spliced). In order to avoid the metal zipper of the clothes and the like from scratching the sand core filter plate 7; the dewatering device also comprises a porous clothes separating plate 8 which is tightly attached to the top surface of the sand core filter plate 7, and the clothes can not directly contact the sand core filter plate 7 by the porous clothes separating plate 8, so that the sand core filter plate 7 is protected, the clothes and the first drainage port 41 are separated, and the first drainage port 41 is prevented from being blocked by the clothes.

For facilitating drainage, the porous partition plate 8 includes a main plate 81 adapted to the size of the sand core filter plate 7 and a wing 82 turned outwards and bent along the edge of the main plate to form a U shape, the main plate 81 is provided with a plurality of small holes, the washing chamber 4 is provided with a first drainage port 41 below the wing 82, the wing 82 is further provided with a plurality of drainage holes 821 at intervals along the circumferential direction, and water in the washing chamber 4 can be collected into the first drainage port 41 through the drainage holes 821, see fig. 4 and 7.

In order to avoid the deformation and damage of the sand core filter plate 7 caused by too large air pressure, a plurality of axially protruding first jacks 431 are arranged on the inner cavity bottom surface 43 of the washing chamber 4, and the first jacks 431 are respectively arranged close to the sand core filter plate 7. Thus, a certain gap is left between the sand core filter plate 7 and the cavity bottom surface 43 of the washing chamber 4, so that the sand core filter plate 7 is prevented from being deformed by high pressure, as shown in fig. 2.

Similarly, the outer bottom surface of the washing chamber 4 is also provided with a plurality of second top pillars 44 protruding outwards along the axial direction, and the second top pillars 44 respectively abut against the bottom of the inner cavity of the airtight chamber 5. A gap is left between the bottom of the washing chamber 4 and the airtight chamber 5 by the second top pillar 44 to prevent the bottom of the airtight chamber 5 from being deformed due to an excessively high degree of vacuum, and to avoid blocking the water discharge hole 52 of the airtight chamber 5, see fig. 3.

In order to ensure that gas can completely enter the airtight chamber 5 through the sand core filter plate 7 and improve the vacuum-pumping dehydration effect, a second sealing ring 46 is arranged between the peripheral wall of the sand core filter plate 7 and the inner cavity side wall of the washing chamber 4 for sealing.

In order to facilitate draining, the clothes dewatering device a of this embodiment further includes a drain valve 9 (an electric drain solenoid valve may be adopted, or a common drain valve that can be opened manually is adopted), the drain valve 9 is used for controlling the opening or closing of the drain port of the airtight chamber 5, the first drain port 41 is directly connected to the main water outlet pipe 93 through the first drain pipe 91, the drain hole 52 of the airtight chamber 5 is connected to the inlet of the drain valve 9 through the second drain pipe 92, and the outlet of the drain valve 9 is connected to the main water outlet pipe 93.

As shown in fig. 5 and 7, in order to better control the water discharge, the airtight chamber 5 is provided with a water level detection device, the water level detection device comprises a fixedly arranged reed pipe 53 and a magnetic float 54 capable of floating up and down along with the liquid, a float accommodating cavity 55 is further arranged in the airtight chamber 5, the upper end and the lower end of the float accommodating cavity 55 are respectively opened and communicated with the airtight chamber 5, the reed pipe 53 is fixed on the outer side wall of the airtight chamber 5, and the magnetic float 54 is accommodated in the float accommodating cavity 55. The fixed setting height of the reed pipe 53 is a preset drainage water level height, and the drainage valve 9 can be controlled to be opened under the suction state of the magnet floater 54 and the reed pipe 53; when the vacuumized washing water in the airtight chamber 5 reaches a certain level (a preset height of the reed pipe 53), water level detection and drainage control can be achieved by the water level monitoring device.

In the embodiment, because the vacuum pumping mode is adopted for dehydration, no vibration is generated basically in the dehydration process, the washing chamber 4 and the machine shell 2 can be integrally formed, and a gap 21 is formed between the washing chamber 4 and the inner wall of the machine shell 2, thereby simplifying the installation process and reducing the cost. In addition, the washing chamber 4 is a cylindrical washing barrel (instead of a square or oval washing barrel), on one hand, the cylindrical washing barrel can save occupied space, on the other hand, water flows in a circular space, the wall collision assistance is smaller, annular water flow is easier to form, and the cleaning rate is improved.

In the embodiment, an airtight chamber 5 is added below a washing chamber 4 for placing clothes, a sand core filter plate 7 is arranged between the airtight chamber 5 and the washing chamber 4, when air in the airtight chamber 5 is rapidly pumped out by a vacuum pump 6 (the speed of air pumped out of the airtight chamber 5 is set as V0), a certain negative pressure is generated in the airtight chamber 5, a pressure difference is generated on two sides of the sand core filter plate 7, the air in the washing chamber 4 enters the airtight chamber 5 along a multi-layer gap path of the sand core filter plate 7 (the speed of air passing through the sand core filter plate 7 is set as V1), the sand core filter plate 7 has the structural characteristics of multi-layer gaps, when the pressure difference exists on two sides of the sand core filter plate 7, the gas passes through the sand core filter plate 7 from a high-pressure side to a low-pressure side, the gas inevitably passes through the gap in the sand core filter plate 7, the path is longer, and therefore the speed of the gas passing through the sand core filter plate 7 is relatively slow, i.e. V0 > V1, a continuous pressure difference between the airtight chamber 5 and the washing chamber 4 occurs after the duration of the action.

When the air pressure difference exists between the washing chamber 4 and the airtight chamber 5 continuously, the clothes close to the sand core filter plate 7 and the sand core filter plate 7 are gathered to form a plurality of small-area negative pressure areas, at the moment, due to the air pressure difference existing on two sides of the clothes, the atmospheric air can extrude the clothes, so that the moisture in the clothes can be firstly pumped into the airtight chamber 5 along with the air, and after the action duration, the water accumulated in the clothes can be pumped into the airtight chamber 5 along the clothes fiber.

The working process of the washing machine of the embodiment is as follows:

first, the laundry to be dehydrated is put into the washing chamber 4, the end cap 1 is closed, and the dehydration process is started. At this time, the control chip sends out an instruction, the vacuum pump 6 starts to work, and the drain valve 9 is in a closed state.

Then, the air in the airtight chamber 5 is rapidly pumped out by the vacuum pump 6, and simultaneously the air in the washing chamber 4 is slowly supplemented into the airtight chamber 5 through the sand core filter plate 7, because the continuous negative pressure is generated in the airtight chamber 5, so that the air pressure difference is generated on two sides of the clothes, the clothes are squeezed by the atmosphere, water in the clothes can be firstly pumped into the airtight chamber 5 along with the air, and after the continuous time, the water accumulated in the clothes is also pumped into the airtight chamber 5 along the clothes fibers, so that the dehydration of the clothes is realized.

Finally, as the water level in the airtight chamber 5 rises to a set value, the reed pipe 53 gives an electric signal to the control chip, and the control chip turns off the vacuum pump 6, opens the drain valve 9 (manually or electrically), and drains the water in the airtight chamber 5.

After the water is drained for a period of time (generally 0.5-5 min), the drain valve 9 is closed, the vacuum pump 6 is opened again to continue pumping, the water is drained again after the specified water level is reached, and the process is circulated. When the reed switch 53 does not sense the water level signal for a period of time (0.5-5 min), it is determined that the moisture in the clothes can not be separated, the vacuum pump 6 is turned off, the drain valve 9 is turned on to drain, and the dehydration is finished.

Claims (14)

1. A clothes dehydrating device is characterized in that: the clothes dehydrating device comprises

A washing chamber (4) for accommodating the clothes to be washed, the washing chamber (4) being provided with a first drain port (41) for directly draining water;

the airtight chamber (5) is communicated with the washing chamber (4), the airtight chamber (5) is arranged below the washing chamber (4), the airtight chamber (5) is provided with an air suction hole (51), and the bottom of the airtight chamber (5) is provided with a water drainage hole (52);

the sand core filter plate (7) is arranged on the bottom surface of the inner cavity of the washing chamber (4);

the vacuum pump (6) is connected with the air suction hole (51) of the airtight chamber (5) and is used for vacuumizing the airtight chamber (5);

the water discharge valve (9) is used for controlling the opening or closing of the water discharge port of the airtight chamber (5), the inlet of the water discharge valve (9) is communicated with the water discharge hole (52) of the airtight chamber (5), the outlet of the water discharge valve (9) is connected to the main water outlet pipe (93), and the first water discharge port (41) is communicated with the main water outlet pipe (93).

2. The laundry dehydration apparatus according to claim 1, characterized in that: the dewatering device also comprises a porous clothes separating plate (8) which is tightly attached to the top surface of the sand core filter plate (7).

3. The laundry dehydrating apparatus of claim 2, wherein: the porous clothes separating plate (8) comprises a main plate (81) matched with the sand core filter plate (7) in size and wing parts (82) which are turned outwards and bent into a U shape along the edges of the main plate (81), the first drainage port (41) is formed in the washing chamber (4) below the wing parts (82), and a plurality of water leakage holes are formed in the wing parts (82) at intervals along the circumferential direction.

4. The laundry dehydration apparatus according to claim 1, characterized in that: the bottom surface of the inner cavity of the washing chamber (4) is provided with a plurality of first top columns (431) protruding outwards along the axial direction, and the sand core filter plate (7) is arranged on the first top columns (431).

5. The laundry dehydration apparatus according to claim 1, characterized in that: the outer bottom surface of the washing chamber (4) is provided with a plurality of second support columns (44) protruding outwards along the axial direction, and the bottom of the inner cavity of the airtight chamber (5) is abutted to the second support columns (44).

6. The laundry dehydration apparatus according to claim 1, characterized in that: the center of the washing chamber (4) is provided with a second water outlet (42) which can be communicated with the airtight chamber (5).

7. The laundry dehydration apparatus according to claim 1, characterized in that: the outer bottom surface of the washing chamber (4) is also provided with an annular groove (45) which is arranged along the circumferential direction, and the top edge of the airtight chamber (5) is inserted into and fixed in the annular groove (45).

8. The laundry dehydrating apparatus of claim 7, wherein: a first sealing ring (451) is embedded in the annular groove (45).

9. The laundry dehydration apparatus according to claim 1, characterized in that: and a second sealing ring (46) is arranged between the peripheral wall of the sand core filter plate (7) and the inner cavity side wall of the washing cavity (4).

10. The laundry dehydration apparatus according to claim 1, characterized in that: the first drainage port (41) is connected to a main drainage pipe (93) through a first drainage pipe; the water discharge hole (52) of the airtight chamber (5) is connected with the inlet of the water discharge valve (9) through a second water discharge pipe.

11. The laundry dehydration apparatus according to claim 1, characterized in that: the peripheral wall of the airtight chamber (5) is provided with an air suction hole (51), and the vacuum pump (6) is connected to the air suction hole (51) through an air suction pipe.

12. The laundry dehydration apparatus according to claim 1, characterized in that: the airtight chamber (5) is provided with a water level detection device, the water level detection device comprises a fixedly arranged reed pipe (53) and a magnet floater (54) which can float up and down along with liquid, the fixedly arranged height of the reed pipe (53) is a preset drainage water level height, and the drainage valve (9) is opened in the suction state of the magnet floater (54) and the reed pipe (53).

13. The laundry dehydration apparatus according to claim 11, characterized in that: the airtight chamber (5) is also internally provided with a floater accommodating cavity, the upper end and the lower end of the floater accommodating cavity are respectively opened and communicated with the airtight chamber (5), the reed pipe (53) is fixed on the outer side wall of the airtight chamber (5), and the magnet floater (54) is accommodated in the floater accommodating cavity.

14. A washing machine comprises a main machine and an end cover (1), and is characterized in that: the clothes dewatering device as claimed in any one of claims 1 to 13 is arranged in the main machine, wherein the washing chamber (4) is integrally formed with the machine shell (2) of the main machine, the washing chamber (4) is a cylindrical washing barrel, and a gap is formed between the washing chamber (4) and the inner wall of the machine shell (2).

Images