CN217997595U - Multi-drum washing machine - Google Patents

Abstract

The utility model provides a multi-drum washing machine, multi-drum washing machine includes first cylinder, second cylinder and heat pump system, heat pump system is used for producing the stoving air current, heat pump system sets up in the stoving wind channel, still set up the wind channel auto-change over device in the stoving wind channel, the wind channel auto-change over device makes the stoving air current can carry in first cylinder and/or the second cylinder, the wind channel auto-change over device includes switching-over motor and separation blade device, install the separation blade cam on the drive output shaft of switching-over motor, the separation blade cam sets up the one end at the separation blade device, the other end of separation blade device is installed in the stoving wind channel rotatably, the separation blade cam contacts with separation blade device; the reversing motor drives the output shaft and the blocking piece cam to rotate, so that the blocking piece device is driven to switch among a first position, a second position and a third position in the drying air duct. Many drum type washing machine, reduced the moment of torsion of switching-over motor, improved the stability of wind channel conversion equipment conduction.

Description

Multi-drum washing machine

Technical Field

The utility model relates to a washing machine field particularly, relates to a many drum type washing machine.

Background

With the improvement of the quality of life, people are pursuing high-quality delicate life more and more. The multi-drum washing machine gradually enters more and more common families and becomes an essential household appliance for high-quality life.

Patent application No. CN201810001993.2 in the prior art discloses a drying system, a washing and drying all-in-one machine and a control method thereof, wherein the washing and drying all-in-one machine comprises a first roller and a second roller which are arranged in parallel, the drying system comprises an air duct assembly, and an air duct control device is arranged in the air duct assembly and is used for switching on or off the communication between the air duct assembly and the first roller and/or the second roller, so that a drying air flow can be sent into the first roller alone, the second roller alone or the first roller and the second roller simultaneously. Although the drying system can be shared by two rollers of the double-cylinder washing and drying integrated machine, the air channel switching device is arranged to drive the motor to directly drive the plate-shaped reversing structure to rotate, so that the torque of the motor is too high, and the problem of unstable conduction of the air channel switching device can occur.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a many drum type washing machine to it sets up to the rotation of driving motor direct drive platelike switching-over structure to solve among the prior art wind channel auto-change over device, and the moment of torsion that leads to the motor is too high, can appear the unstable problem of wind channel auto-change over device conduction.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a multi-drum washing machine at least comprises a first drum, a second drum and a heat pump system, wherein the heat pump system is used for generating drying airflow, the heat pump system is arranged in a drying air duct, an air duct switching device is further arranged in the drying air duct, the air duct switching device enables the drying airflow to be conveyed into the first drum and/or the second drum from the drying air duct, the air duct switching device comprises a reversing motor and a baffle device, a baffle cam is mounted on a driving output shaft of the reversing motor, the baffle cam is arranged at one end of the baffle device, the other end of the baffle device is rotatably mounted in the drying air duct, and the baffle cam is in contact with the baffle device; the reversing motor drives the output shaft and the blocking piece cam to rotate, so that the blocking piece device is driven to switch among a first position, a second position and a third position in the drying air duct.

The utility model discloses a multi-drum washing machine, on one hand, the moment of torsion of the reversing motor of the air channel switching device is reduced, and the conduction stability of the air channel switching device is improved; on the other hand, during the stoving air current that makes in the stoving wind channel can carry first cylinder and/or second cylinder, let first cylinder, second cylinder independently dry also can dry simultaneously, have advantages such as improvement machine efficiency, increase fan utilization ratio, reduction product cost.

Furthermore, one end of the output shaft is in driving connection with the reversing motor, and a detection device is arranged at the other end of the output shaft and used for detecting the position of the baffle plate device.

The arrangement is convenient for detecting that the baffle device is not adjusted in place.

Furthermore, the reversing motor is installed on the outer side of the drying air duct, and the detection device is installed on the other outer side of the drying air duct.

The arrangement avoids the obstruction of the reversing motor and the detection device to the flow of the fluid in the drying air channel, reduces the flow channel resistance in the drying air channel, and improves the flow efficiency of the fluid in the air channel.

Further, detection device includes micro-gap switch subassembly, cam module and detects the casing, micro-gap switch subassembly, cam module are installed detect the inside of casing, cam module, detection casing are installed on the output shaft, cam module with the micro-gap switch subassembly contacts or separates.

Further, the baffle cam is arranged in the middle of the output shaft.

This setting has improved separation blade cam and has adjusted the drive equilibrium and the stability of separation blade to the wind channel.

Furthermore, the baffle device comprises an air duct adjusting baffle and a rotating shaft, the rotating shaft is installed in the drying air duct, and the air duct adjusting baffle is installed on the rotating shaft.

The arrangement is convenient for the baffle device to realize the rotating motion under the driving of the baffle cam.

Furthermore, the air duct adjusting baffle comprises a third arc-shaped section and a straight line section, and the third arc-shaped section is connected with the straight line section.

The air duct adjusting baffle is convenient to convey air flow to the first air duct and the second air duct uniformly when the air duct adjusting baffle is at the second position.

Furthermore, a first air duct is arranged on the first roller, a second air duct is arranged on the second roller, the drying air duct comprises a drying air inlet duct, a heat exchanger air duct and a drying air outlet duct which are sequentially communicated, a first switching device is arranged at the outlet end of the drying air outlet duct, a second switching device is arranged at the inlet end of the drying air inlet duct, and the drying air duct can be selectively communicated with the first air duct and/or the second air duct through the first switching device and the second switching device.

The device improves the utilization rate of the drying air channel, greatly improves the use experience of users, reduces the hardware quantity of the whole equipment and reduces the manufacturing cost.

Further, the first air duct comprises a first air inlet duct and a first air outlet duct, and the first air inlet duct and the first air outlet duct are communicated with the first roller; the second air duct comprises a second air inlet duct and a second air outlet duct, and the second air inlet duct and the second air outlet duct are communicated with the second roller.

The utility model provides a many drum type washing machine, for prior art, many drum type washing machine following beneficial effect has:

1) A many drum type washing machine, reduced the moment of torsion of wind channel auto-change over device's switching-over motor, improved the stability of wind channel conversion equipment conduction.

2) A many drum type washing machine, make the stoving air current in the stoving wind channel can carry first cylinder and/or second cylinder in, let first cylinder, second cylinder independently dry also can dry simultaneously, have the advantage such as improvement machine efficiency, increase fan utilization ratio, reduction product cost.

3) A many drum type washing machine, the use that has improved many drum type washing machine's wholeness ability and user is experienced and is felt.

Drawings

Fig. 1 is a schematic perspective view of a multiple drum washing machine according to an embodiment of the present invention;

fig. 2 is a second schematic perspective view of a multiple drum washing machine according to an embodiment of the present invention;

fig. 3 is a schematic side view of a drying air outlet duct of a multiple drum washing machine according to an embodiment of the present invention;

fig. 4 is a schematic top view of a drying air outlet duct of a multiple drum washing machine according to an embodiment of the present invention;

FIG. 5 isbase:Sub>A schematic cross-sectional view taken along section line A-A of FIG. 4;

fig. 6 is a schematic perspective view of an air duct switching device of a multiple drum washing machine according to an embodiment of the present invention;

fig. 7 is a schematic side view of a baffle device of a multiple drum washing machine according to an embodiment of the present invention;

fig. 8 is a schematic side view of a baffle cam of a multiple drum washing machine according to an embodiment of the present invention;

fig. 9 is a second schematic perspective view of an air duct switching device of a multiple drum washing machine according to an embodiment of the present invention;

FIG. 10 is an enlarged perspective view of the structure at A in FIG. 9;

fig. 11 is a schematic perspective view of a drying air duct of a multiple drum washing machine according to an embodiment of the present invention;

fig. 12 is a schematic front view of a drying air duct of a multiple drum washing machine according to an embodiment of the present invention;

fig. 13 is a schematic diagram of a right-view structure of a drying air duct of a multiple drum washing machine according to an embodiment of the present invention;

fig. 14 is a schematic perspective view of a drying air inlet duct of a multiple drum washing machine according to an embodiment of the present invention;

fig. 15 is a second schematic perspective view of a drying air inlet duct of a multiple drum washing machine according to an embodiment of the present invention;

fig. 16 is a schematic top view of a drying air inlet duct of a multiple drum washing machine according to an embodiment of the present invention;

FIG. 17 isbase:Sub>A cross-sectional view taken along section line A-A of FIG. 16;

fig. 18 is a schematic perspective view of a screen assembly of a multiple drum washing machine according to an embodiment of the present invention.

Description of reference numerals:

1. a multi-drum washing machine; 11. a first drum; 110. a first air duct; 111. a first air inlet duct; 112. a first air outlet duct; 1121. a first section of air outlet duct; 1122. a second section of air outlet duct; 113. a third air inlet; 114. a third air outlet; 12. a second drum; 120. a second air duct; 121. a second air inlet duct; 122. a second air outlet duct; 123. a fourth air inlet; 124. a fourth air outlet; 2. a heat pump system; 200. a drying air duct; 201. drying the air inlet duct; 2011. a first air inlet; 2012. a second air inlet; 2013. an air outlet of the air inlet duct; 202. drying the air outlet duct; 2021. a first air outlet; 2022. a second air outlet; 2023. an air inlet of the air outlet duct; 203. a heat exchanger air duct; 2031. a horizontal segment; 2032. a first arcuate segment; 2033. a second arcuate segment; 204. a first flexible connecting pipe; 205. a second flexible connecting pipe; 3. a screen assembly; 31. a handle; 32. a screen support; 321. a first bracket; 322. a second bracket; 33. filtering with a screen; 300. a cleaning device; 301. a water injection port; 302. a water discharge port; 303. a mesh plate; 4. an air duct switching device; 401. a commutation motor; 402. an output shaft; 403. a catch cam; 5. a detection device; 51. a micro-switch assembly; 511. a first microswitch; 512. a second microswitch; 513. a third microswitch; 52. a cam assembly; 521. a first cam; 522. a second cam; 523. a third cam; 53. detecting the shell; 6. a baffle plate device; 61. an air duct adjusting baffle; 611. a third arc segment; 612. a straight line segment; 62. a rotating shaft; 41. a first switching device; 42. a second switching device; a. a first position; b. a second position; c. a third position.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other. The descriptions of "first," "second," etc. mentioned in the embodiments of the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying that the number of indicated technical features is indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

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

The prior art multi-drum washing machine has the following problems: (1) the air channel switching device is set to drive the motor to directly drive the plate-shaped reversing structure to rotate, so that the torque of the motor is too high, and the problem of unstable conduction of the air channel switching device can occur; (2) all structures of the drying air channel are horizontally arranged between the first roller and the second roller, so that the height of the whole machine is increased, and the stability of the whole machine in operation is reduced; (3) the air duct is unreasonable in design, the air inlet of the upper roller is arranged at the lower side of the roller, and water in the roller can flow back into the air duct during washing; (4) easy flock is piled up on the filter screen, and needs manual work to clear up regularly, and the difficult dismouting of filter screen subassembly, wastes time and energy. These problems combine to result in a multi-drum washing machine with low overall performance and a user experience of poor quality.

Example 1

The present embodiment provides a multi-drum washing machine, as shown in fig. 1 and fig. 2, the multi-drum washing machine 1 at least includes a first drum 11, a second drum 12 and a heat pump system 2, the heat pump system 2 is used for generating a drying air flow, the heat pump system 2 is disposed in a drying air duct 200, an air duct switching device 4 is further disposed in the drying air duct 200, the air duct switching device 4 enables the drying air flow to be conveyed from the drying air duct 200 to the first drum 11 and/or the second drum 12, as shown in fig. 5 and fig. 6, the air duct switching device 4 includes a reversing motor 401 and a flap device 6, a flap cam 403 is mounted on a driving output shaft 402 of the reversing motor 401, the flap cam 403 is disposed at one end of the flap device 6, the other end of the flap device 6 is rotatably mounted in the drying air duct 200, and the flap cam 403 is in contact with the flap device 6; the reversing motor 401 drives the output shaft 402 and the flap cam 403 to rotate, so as to drive the flap device 6 to switch among a first position a, a second position b and a third position c in the drying air duct 200.

The multi-drum washing machine of the embodiment, firstly, reduces the torque of the reversing motor 401 and improves the conduction stability of the air channel switching device 4; secondly, the drying air duct 200 can be selectively communicated with the first air duct 110 and/or the second air duct 120, so that the first air duct 110 and the second air duct 120 can be independently dried and simultaneously dried, and the drying air duct has the advantages of improving the machine efficiency, increasing the utilization rate of a fan, reducing the product cost and the like; thirdly, the overall performance of the multi-drum washing machine 1 and the user experience are improved.

Specifically, as shown in fig. 6, one end of the output shaft 402 is drivingly connected to the reversing motor 401, and a detecting device 5 is disposed at the other end of the output shaft 402, where the detecting device 5 is configured to detect a position of the flap device 6.

This arrangement facilitates detection of whether the flap arrangement 6 is adjusted in place or not.

Specifically, as shown in fig. 4, the reversing motor 401 is installed at an outer side of the drying air duct 200, and the detecting device 5 is installed at another outer side of the drying air duct 200.

The arrangement can avoid the obstruction of the reversing motor 401 and the detection device 5 to the flow of the fluid in the drying air duct 200, reduce the flow channel resistance in the drying air duct 200 and improve the flow efficiency of the fluid in the air duct.

Specifically, as shown in fig. 6, the detection device 5 includes a micro switch assembly 51, a cam assembly 52 and a detection housing 53, the micro switch assembly 51 and the cam assembly 52 are installed inside the detection housing 53, the cam assembly 52 and the detection housing 53 are installed on the output shaft 402, and the cam assembly 52 is in contact with or separated from the micro switch assembly 51.

This arrangement facilitates the detection of the position of the flap arrangement 6. When the flap device 6 is switched to the right position, the cam assembly 52 is triggered by cooperating with the microswitch assembly 51.

More specifically, as shown in fig. 9 and 10, the micro switch assembly 51 includes a first micro switch 511, a second micro switch 512, and a third micro switch 513, the first micro switch 511, the second micro switch 512, and the third micro switch 513 are arranged side by side along the direction of the output shaft 402, the cam assembly 52 includes a first cam 521, a second cam 522, and a third cam 523, the first cam 521, the second cam 522, and the third cam 523 are arranged side by side on the output shaft 402, an abutting end of the first cam 521, an abutting end of the second cam 522, and an abutting end of the third cam 523 are both at an included angle of 120 °, and an abutting end of the second cam 522 and an abutting end of the third cam 523 are also at an included angle of 120 °.

This arrangement allows the stop device 6 to have the abutment end of one cam in contact with the start microswitch each time it is switched between the first position a, the second position b and the third position c, which microswitch sends a signal to the control module of the multiple drum washing machine 1.

Specifically, as shown in fig. 6, the flap cam 403 is mounted at an intermediate position of the output shaft 402.

This arrangement improves the driving balance and stability of the flap cam 403 to the duct adjusting flap 61.

More specifically, as shown in fig. 8, the flap cam 403 is provided as an arc-shaped surface, and an included angle of the arc-shaped surface of the flap cam 403 is β, where β =120 °.

Specifically, as shown in fig. 5, 6 and 7, the baffle device 6 includes an air duct adjusting baffle 61 and a rotating shaft 62, the rotating shaft 62 is installed in the drying air duct 200, and the air duct adjusting baffle 61 is installed on the rotating shaft 62.

This arrangement facilitates the rotational movement of the flap device 6 by the flap cam 403.

Specifically, as shown in fig. 7, the duct adjusting flap 61 includes a third arc-shaped segment 611 and a straight segment 612, and the third arc-shaped segment 611 is connected to the straight segment 612.

This arrangement facilitates the air duct adjusting flap 61 to uniformly convey the air flow to the first air duct 110 and the second air duct 120 when in the second position b.

Specifically, as shown in fig. 1 and fig. 2, a first air duct 110 is disposed on the first drum 11, a second air duct 120 is disposed on the second drum 12, the drying air duct 200 includes a drying air inlet duct 201, a heat exchanger air duct 203, and a drying air outlet duct 202 that are sequentially communicated, a first switching device 41 is disposed at an outlet end of the drying air outlet duct 202, and a second switching device 42 is disposed at an inlet end of the drying air inlet duct 201. The first and second switching devices 41 and 42 enable the drying air duct 200 to selectively communicate with the first and/or second air ducts 110 and 120.

This setting has improved the utilization ratio of stoving wind channel 200, has improved user's use by a wide margin and has experienced and reduced the hardware quantity of whole equipment, has reduced manufacturing cost.

As shown in fig. 3, fig. 4 and fig. 5, a first air outlet 2021, a second air outlet 2022 and an air outlet duct inlet 2023 are disposed on the drying air outlet duct 202, the first air outlet 2021 is communicated with the first air inlet duct 111, the second air outlet 2022 is communicated with the second air inlet duct 121, and the drying air flow of the heat exchanger air duct 203 flows into the drying air outlet duct 202 from the air outlet duct inlet 2023, and then flows out of the drying air outlet duct 202 from the first air outlet 2021 and/or the second air outlet 2022.

As shown in fig. 1 and fig. 2, the first air duct 110 includes a first air inlet duct 111 and a first air outlet duct 112, and the first air inlet duct 111 and the first air outlet duct 112 are communicated with the first drum 11; the second air duct 120 includes a second air inlet duct 121 and a second air outlet duct 122, and the second air inlet duct 121 and the second air outlet duct 122 are communicated with the second roller 12.

Specifically, the specific structure of the heat pump system 2 is not limited, and since the specific structure and the specific assembly relationship of the related components of the heat pump system 2 are the prior art, detailed description is omitted here.

In the prior art, all structures of the drying air duct 200 are horizontally arranged between the first roller 11 and the second roller 12, so that the height of the whole machine is increased, and the stability of the operation of the whole machine is reduced.

Specifically, as shown in fig. 11 and 12, the capacity of the first drum 11 is smaller than that of the second drum 12, the first drum 11 is disposed right above the second drum 12, the heat exchanger air duct 203 is disposed at the rear side of the first drum 11, and the drying air inlet duct 201 and the drying air outlet duct 202 are disposed below the heat exchanger air duct 203, as shown in fig. 1 and 2, the drying air inlet duct 201 and the drying air outlet duct 202 extend toward the front side of the first drum 11 to a position between the first drum 11 and the second drum 12.

The space of the machine body is fully utilized, so that the height of the whole machine is reduced, the gravity center of the whole machine is reduced, and the running stability of the whole machine is improved; secondly, the drying air inlet duct 201 and the drying air outlet duct 202 are conveniently communicated with the first roller 11 and/or the second roller 12, so that the utilization rate of the drying air duct 200 is improved, the use experience of a user is greatly improved, the hardware quantity of the whole equipment is reduced, and the manufacturing cost is reduced; thirdly, the overall performance of the multi-drum washing machine 1 and the user experience are improved.

More specifically, as shown in fig. 11 and 12, a first flexible connecting pipe 204 is disposed at a connection between the heat exchanger air duct 203 and the drying air outlet duct 202, and a second flexible connecting pipe 205 is disposed at a connection between the heat exchanger air duct 203 and the drying air inlet duct 201.

First flexible connection pipe 204, second flexible connection pipe 205 have certain elasticity for corresponding stoving air inlet duct 201, stoving air outlet duct 202 can carry out the self-compensation under the condition that corresponding cylinder rocked (or vibrate), prevent the destruction of self, have reduced vibrations and the noise that the working process produced simultaneously, have improved many drum washing machine's wholeness ability and user's use and have experienced the sense.

Specifically, as shown in fig. 11, a horizontal segment 2031 is disposed on the heat exchanger air duct 203, one end of the horizontal segment 2031 is connected to a first arc-shaped segment 2032, and the other end of the horizontal segment 2031 is connected to a second arc-shaped segment 2033.

The horizontal section 2031 is convenient for installing the heat pump system 2, and the second arc-shaped section 2033 is convenient for guiding the air in the drying air inlet channel 201 to flow into the heat exchanger air channel 203, so that the flow efficiency and the drying efficiency of the fluid in the air channel are improved; the arrangement of the first arc-shaped section 2032 reduces the flow resistance of the air flowing into the drying air outlet duct 202 of the heat exchanger air duct 203, so as to guide the air flowing into the drying air outlet duct 202 of the heat exchanger air duct 203, thereby improving the flow efficiency and drying efficiency of the fluid in the air duct.

The first arc-shaped section 2032 and the second arc-shaped section 2033 are both gradually inclined downwards.

Specifically, as shown in fig. 1 and 4, one end of the drying air outlet duct 202 close to the first flexible connecting pipe 204 is set to be a cylinder.

This arrangement facilitates installation of the circulating fan assembly in the drying air outlet duct 202.

Specifically, as shown in fig. 11, the drying air inlet duct 201 is a rectangular parallelepiped, and an upper surface of the drying air inlet duct 201 is an upper arc surface that extends rearward and gradually inclines upward.

This setting is convenient for reduce the runner resistance that the wind that dries inlet air duct 201 flowed into heat exchanger wind channel 203, is convenient for guide the wind that dries inlet air duct 201 to flow into heat exchanger wind channel 203, has improved fluidic flow efficiency and drying efficiency in the wind channel.

Specifically, as shown in fig. 11 and fig. 2, the first flexible connecting pipe 204 is arranged in a horn shape.

Specifically, as shown in fig. 11 and 12, the diameter of the inlet end of the drying air outlet duct 202 is D1, the diameter of the outlet end of the heat exchanger duct 203 is D2, and D1 is greater than or equal to 1.2d2.

This setting has reduced the runner resistance that the wind of heat exchanger wind channel 203 flowed into stoving air outlet duct 202, is convenient for guide the wind of heat exchanger wind channel 203 to flow into stoving air outlet duct 202, has improved the flow efficiency and the drying efficiency of the fluid in the wind channel.

Specifically, as shown in fig. 13, the second flexible connecting pipe 205 is provided in a horn shape.

Specifically, as shown in fig. 13, the diameter of the outlet end of the drying air inlet duct 201 is D3, the diameter of the inlet end of the heat exchanger air duct 203 is D4, and D3 is greater than or equal to 1.2d4.

This setting has reduced the runner resistance that the wind in stoving inlet air duct 201 flowed into heat exchanger wind channel 203, is convenient for guide stoving inlet air duct 201's wind to flow into heat exchanger wind channel 203, has improved fluidic flow efficiency and drying efficiency in the wind channel.

Specifically, the air duct switching device 4 enables the drying air duct 200 to selectively communicate with the first air duct 110 and/or the second air duct 120.

More specifically, as shown in fig. 6 and 7, a first switching device 41 is disposed at an outlet end of the drying air outlet duct 202, a second switching device 42 is disposed at an inlet end of the drying air inlet duct 201, and the first switching device 41 and the second switching device 42 enable the drying air duct 200 to selectively communicate with the first air duct 110 and/or the second air duct 120.

More specifically, as shown in fig. 14 and 15, the drying air inlet duct 201 is provided with a first air inlet 2011, a second air inlet 2012 and an air inlet duct air outlet 2013, the first air inlet 2011 is communicated with the first air outlet duct 112, the second air inlet 2012 is communicated with the second air outlet duct 122, and air flowing into the drying air inlet duct 201 from the first air inlet 2011 and/or the second air inlet 2012 penetrates through the filter screen 33 and then flows out of the drying air inlet duct 201 from the air inlet duct air outlet 2013.

In the prior art, the air duct is unreasonable in design, the air inlet of the upper roller is arranged on the lower side of the roller, and water, foam and the like in the roller can flow backwards into the air duct during washing.

As shown in fig. 2, the first drum 11 is disposed right above the second drum 12, and a third air inlet 113 and a third air outlet 114 are disposed on the first drum 11. A fourth air inlet 123 and a fourth air outlet 124 are disposed on the second drum 12. The third air inlet 113 is disposed above the first drum 11, and the fourth air inlet 123 is disposed above the second drum 12.

The arrangement is first, so that the damage of the heat pump system 2 caused by the backflow of water, foam and the like in the first roller 11 during washing can be avoided; secondly, space is provided for installing the filter screen assembly 3, and the space of the machine body is fully utilized; thirdly, the overall performance of the multi-drum washing machine 1 and the user experience are improved.

The third air outlet 114 is disposed below the first drum 11, and the fourth air outlet 124 is disposed below the second drum 12.

The arrangement prolongs the path of the drying air flow, so that the drying air flow is fully mixed with the clothes in the first rotary drum 11 and the second rotary drum 12, and the clothes treatment effect is improved; the overall performance of the multi-drum washing machine 1 and the user experience are improved.

As shown in fig. 2, the first air outlet duct 112 includes a first air outlet duct 1121 and a second air outlet duct 1122, the first air outlet duct 1121 is communicated with the second air outlet duct 1122, the first air outlet duct 1121 extends toward the upper side of the first drum 11, and the second air outlet duct 1122 extends toward the lower side of the first drum 11.

The arrangement is firstly, the damage of the heat pump system 2 caused by the backflow of water, foam and the like in the first roller 11 during washing can be avoided; secondly, the overall performance of the multi-drum washing machine 1 and the user experience are improved.

Easy flock is piled up on the filter screen 33 among the prior art, needs artifical regular clearance, and filter screen subassembly 3 is difficult for the dismouting, wastes time and energy.

As shown in fig. 14 and 15, install filter screen assembly 3 in stoving inlet air duct 201, as shown in fig. 17 and 18, filter screen assembly 3 includes handle 31 and filter screen support 32, handle 31 and filter screen support 32 fixed connection be provided with filter screen 33 on the filter screen support 32, handle 31 detachable installs in stoving inlet air duct 201, filter screen support 32 sets up in stoving inlet air duct 201, handle 31 at least partially stretches out stoving inlet air duct 201, the wind in stoving inlet air duct 201 runs through filter screen 33 flows.

On one hand, the filter screen component 3 is convenient for a user to take down, and the cleaning efficiency of the filter screen component 3 is improved; on the other hand, the overall performance of the multi-drum washing machine 1 and the user experience are improved.

Stretch out the setting of stoving air inlet duct 201 through handle 31, make its easy gripping for the user will easily when wasing filter screen 33 filter screen subassembly 3 takes off, has improved filter screen subassembly 3's cleaning efficiency, and the air is when running through filter screen 33, and the flock wherein is blocked by filter screen 33, and clean air participates in subsequent stoving operation after passing filter screen 33. It should be noted that the handle 31 may be integrally formed with the strainer holder 32, or may be separately disposed and then fixedly connected, which is not limited herein.

As shown in fig. 17 and 18, the filter screen bracket 32 includes a first bracket 321 and a second bracket 322, the first bracket 321 is disposed obliquely, the second bracket 322 is disposed horizontally, and the first bracket 321 and the second bracket 322 are disposed at an included angle α at an end far from the handle 31. Wherein α is an acute angle, optionally, α ranges from 3 to 30 °, and as a preferred embodiment thereof, α ranges from 5 °, 10 °, and 15 °. This setting makes on the one hand filter screen subassembly 3 keeps away from handle 31's one end and becomes the state of contracting gradually, the dismantlement and the installation of the filter screen subassembly 3 of being convenient for, on the other hand all set up filter screen 33 on first support 321 and the second support 322, formed double-deck filtration, promoted the filter effect of flock, simultaneously, because the slope setting of first support 321 for the direction of advance of air inlet has formed certain contained angle with filter screen 33, avoid wind directly to hit the wind channel wall downward flow again of department of bending, be favorable to filter screen 33's even filtration. In some alternative embodiments, the mesh of the screen 33 of the second bracket 322 is smaller than the mesh of the screen 33 of the first bracket 321, in which case the screen 33 of the second bracket 322 can filter fine lint leaked from the screen 33 of the first bracket 321, thereby significantly improving the filtering effect of the screen assembly 3.

As shown in fig. 15, 16 and 17, cleaning device 300 is arranged on the outer wall of drying air inlet duct 201, cleaning device 300 is communicated with the inside of drying air inlet duct 201, the communication area is located above filter screen assembly 3 in drying air inlet duct 201, water filling port 301 is arranged on cleaning device 300, mesh plate 303 is arranged at the joint of cleaning device 300 and drying air inlet duct 201, and water in cleaning device 300 passes through mesh plate 303 and enters into drying air inlet duct 201. A water outlet 302 is arranged on the drying air inlet duct 201, water entering the cleaning device 300 from the water injection port 301 and the mesh plate 303 flows into the drying air inlet duct 201, and flows out from the water outlet 302 after penetrating through the filter screen 33 on the filter screen assembly 3.

This setting realizes the clean operation to filter screen 33, need not the manual work regularly to take off filter screen 33 from stoving air inlet duct 201 and washs labour saving and time saving. The arrangement structure is simple, the assembly is simple and convenient, and the self-cleaning of the filter screen assembly 3 is realized; the overall performance of the multi-drum washing machine 1 and the user experience are improved.

The design of the mesh plate 303 enables the water flow in the cleaning device 300 to be dispersed, so that all positions on the filter screen 33 are uniformly washed, no washing dead angle is formed on the filter screen 33, and the self-cleaning effect is ensured.

Under the normal condition, the outlet 302 is arranged at a position close to the bottom of the drying air inlet channel 201, the water filling port 301 is connected with a water inlet pipe of a clothes drying device, or the water filling port 301 and an external water inlet pipe, when the water filling port 301 injects water into the cleaning device 300, the water flow flows to the filter screen 33 under the action of gravity, and under the washing of the water flow, the flock accumulated on the filter screen 33 is washed away and is discharged from the outlet 302 along with the water flow, so that the filter screen 33 on the filter screen assembly 3 is cleaned.

Set up and dry air inlet duct 201 fixed connection's cleaning device 300 in the top of filter screen subassembly 3, through injecting the clear water into cleaning device 300, wash out filter screen 33 with the help of the impact force of rivers downward flow to wash away the accumulational flock on filter screen 33, then sewage is discharged from outlet 302 together with the flock thing, like this alright realize the cleaning operation to filter screen 33, need not artifical regularly to take off filter screen 33 from drying air inlet duct 201 and wash, labour saving and time saving. The self-cleaning filter screen component 3 is simple in structure, simple and convenient to assemble and capable of achieving self-cleaning.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (9)

1. A multi-drum washing machine, characterized in that the multi-drum washing machine (1) at least comprises a first drum (11), a second drum (12) and a heat pump system (2), the heat pump system (2) is used for generating drying air flow, the heat pump system (2) is arranged in a drying air duct (200), an air duct switching device (4) is further arranged in the drying air duct (200), the air duct switching device (4) enables the drying air flow to be conveyed from the drying air duct (200) to the first drum (11) and/or the second drum (12), the air duct switching device (4) comprises a reversing motor (401) and a baffle device (6), a baffle cam (403) is mounted on a driving output shaft (402) of the reversing motor (401), the baffle cam (403) is arranged at one end of the baffle device (6), the other end of the baffle device (6) is rotatably mounted in the drying air duct (200), and the baffle cam (403) is in contact with the baffle device (6); the reversing motor (401) drives the output shaft (402) and the baffle cam (403) to rotate, so that the baffle device (6) is driven to switch among a first position (a), a second position (b) and a third position (c) in the drying air duct (200).

2. A multiple drum washing machine according to claim 1, characterized in that one end of the output shaft (402) is drivingly connected to the reversing motor (401), and a detecting device (5) is provided at the other end of the output shaft (402), the detecting device (5) being adapted to detect the position of the flap means (6).

3. A multiple drum washing machine according to claim 2, characterized in that the reversing motor (401) is mounted outside the drying air duct (200), and the detection device (5) is mounted outside the drying air duct (200).

4. A multiple drum washing machine according to claim 3, characterized in that the detection device (5) comprises a micro switch assembly (51), a cam assembly (52) and a detection housing (53), the micro switch assembly (51) and the cam assembly (52) are installed inside the detection housing (53), the cam assembly (52) and the detection housing (53) are installed on the output shaft (402), and the cam assembly (52) is in contact with or separated from the micro switch assembly (51).

5. A multiple drum washing machine according to claim 4, characterized in that the flap cam (403) is provided at an intermediate position of the output shaft (402).

6. A multiple-drum washing machine according to claim 5, characterized in that said shutter device (6) comprises an air duct adjusting shutter (61) and a rotating shaft (62), said rotating shaft (62) being mounted inside said drying air duct (200), said air duct adjusting shutter (61) being mounted on said rotating shaft (62).

7. A multiple drum washing machine according to claim 6, characterized in that the duct adjusting flap (61) comprises a third arc-shaped section (611) and a straight section (612), the third arc-shaped section (611) being connected to the straight section (612).

8. The multi-drum washing machine according to claim 7, characterized in that a first air duct (110) is provided on the first drum (11), a second air duct (120) is provided on the second drum (12), the drying air duct (200) comprises a drying air inlet duct (201), a heat exchanger duct (203) and a drying air outlet duct (202) which are sequentially communicated, a first switching device (41) is provided at an outlet end of the drying air outlet duct (202), a second switching device (42) is provided at an inlet end of the drying air inlet duct (201), and the first switching device (41) and the second switching device (42) enable the drying air duct (200) to be selectively communicated with the first air duct (110) and/or the second air duct (120).

9. The multiple-drum washing machine according to claim 8, characterized in that the first air duct (110) comprises a first air inlet duct (111) and a first air outlet duct (112), and the first air inlet duct (111) and the first air outlet duct (112) are communicated with the first drum (11); the second air duct (120) comprises a second air inlet duct (121) and a second air outlet duct (122), and the second air inlet duct (121) and the second air outlet duct (122) are communicated with the second roller (12).

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