阅读说明：本技术 滚筒洗衣机的筒干燥方法 (Drum drying method for drum washing machine ) 是由 颜灵智 王开明 谢红伟 于 2020-11-18 设计创作，主要内容包括：本发明属于洗涤设备技术领域,具体提供一种滚筒洗衣机的筒干燥方法,洗衣机包括：固定装置；金属筒,可旋转地设置在固定装置内,金属筒的第一端形成有衣物投放口；相连的进排水组件和排水泵,进排水组件的第一端与金属筒的第二端连通；电磁加热装置,能够对金属筒加热；筒干燥方法包括：在将金属筒内的洗涤水排出后,使电磁加热装置对金属筒加热；使排水泵启动,将金属筒内的水蒸气排出。通过取消洗衣机的外筒,只保留一个金属筒,只需对金属筒的内部进行清洗；在将洗涤水排出后,通过电磁加热装置对金属筒加热,能够将金属筒内残留的水蒸干,避免筒内产生细菌,启动排水泵将水蒸气排出,避免金属筒冷却后,水蒸气重新冷凝成水。(The invention belongs to the technical field of washing equipment, and particularly provides a drum drying method of a drum washing machine, wherein the drum washing machine comprises the following steps: a fixing device; the metal cylinder is rotatably arranged in the fixing device, and a clothes throwing opening is formed at the first end of the metal cylinder; the first end of the water inlet and drain assembly is communicated with the second end of the metal cylinder; an electromagnetic heating device capable of heating the metal cylinder; the drum drying method comprises: after the washing water in the metal cylinder is discharged, the electromagnetic heating device heats the metal cylinder; the drain pump is started to discharge the water vapor in the metal cylinder. Only one metal cylinder is reserved by canceling the outer cylinder of the washing machine, and only the inside of the metal cylinder is required to be cleaned; after discharging the washing water, heat the metal cylinder through electromagnetic heating device, can avoid the interior production bacterium of section of thick bamboo with remaining water evaporation to dryness in the metal cylinder, start the drain pump and discharge vapor, avoid the metal cylinder cooling back, vapor recondenses into water again.)

1. A drum drying method of a drum washing machine including a cabinet, characterized in that the drum washing machine further includes:

a fixing device disposed within the case;

the metal drum is rotatably arranged in the fixing device and is used for containing articles to be washed and washing water, and a clothes throwing opening is formed at the first end of the metal drum;

a water inlet and drain device comprising a water inlet and drain assembly and a water drain pump, wherein a first end of the water inlet and drain assembly is communicated with a second end of the metal cylinder, and a second end of the water inlet and drain assembly is communicated with the water drain pump; and

the electromagnetic heating device is arranged on the fixing device and can heat the metal cylinder;

the cartridge drying method includes:

after the washing water in the metal cylinder is drained,

causing the electromagnetic heating device to heat the metal cylinder;

and starting the drainage pump so as to discharge the water vapor in the metal cylinder.

2. The drum drying method according to claim 1, further comprising:

acquiring a humidity value of gas at an outlet of the drain pump;

comparing the humidity value with a first preset value;

and selectively stopping heating of the electromagnetic heating device according to the comparison result.

3. The drum drying method according to claim 2, wherein the step of selectively stopping heating of the electromagnetic heating device according to the comparison result specifically includes:

and if the humidity value is smaller than the first preset value, stopping heating the electromagnetic heating device.

4. The drum drying method according to claim 2, wherein the step of selectively stopping heating of the electromagnetic heating device according to the comparison result specifically includes:

and if the duration time of the humidity value smaller than the first preset value reaches preset time, stopping heating the electromagnetic heating device.

5. The drum drying method according to claim 1, further comprising:

acquiring a temperature value of the metal cylinder;

comparing the temperature value with a second preset value;

and selectively stopping heating of the electromagnetic heating device according to the comparison result.

6. The drum drying method according to claim 5, wherein the step of selectively stopping heating of the electromagnetic heating device according to the comparison result specifically comprises:

and if the temperature value is greater than the second preset value, stopping heating the electromagnetic heating device.

7. The drum drying method according to claim 1, wherein the electromagnetic heating device comprises an electromagnetic heating member, a driving member, and a transmission assembly connected between the electromagnetic heating member and the driving member, the driving member being mounted on the fixing device,

the cartridge heating method further comprises:

in the process that the electromagnetic heating device heats the metal tube, the driving component drives the electromagnetic heating component to move back and forth along the axial direction of the metal tube.

8. The drum drying method according to claim 7, wherein the electromagnetic heating device further includes a first guide member provided on the fixing device and a second guide member provided on the electromagnetic heating member, and the first guide member and the second guide member are engaged with each other to prevent the electromagnetic heating member from shaking left and right during the reciprocating movement.

9. The drum drying method according to claim 1, wherein the water inlet and drain assembly comprises a first water inlet and drain assembly, an adaptor and a second water inlet and drain assembly which are communicated in sequence, the first water inlet and drain assembly is communicated with the second end of the metal drum, the second water inlet and drain assembly is communicated with the drain pump, the adaptor is mounted on the fixing device, and the first water inlet and drain assembly and a part of the adaptor connected with the first water inlet and drain assembly can rotate along with the metal drum.

10. The cartridge drying method according to any one of claims 1 to 9, further comprising:

and in the process that the electromagnetic heating device heats the metal cylinder, the metal cylinder is continuously rotated.

Technical Field

The invention belongs to the technical field of washing equipment, and particularly provides a drum drying method of a drum washing machine.

Background

A washing machine is a cleaning appliance that washes laundry using mechanical action generated by electric energy. The current washing machines mainly include a pulsator type washing machine and a drum type washing machine.

The existing drum washing machine mainly comprises a box body, an outer drum, an inner drum and a driving device, wherein the outer drum, the inner drum and the driving device are arranged in the box body, the inner drum is rotatably arranged in the outer drum, and the driving device can drive the inner drum to rotate. After the use for a period of time, on the outer wall of inner tube and the inner wall of urceolus, can bond there are a lot of impurity, under airtight moist environment, easily breed the bacterium, influence user's healthy. Therefore, the washing machine needs to be cleaned periodically.

However, for the drum washing machine, professional after-sales personnel are needed to clean the drum washing machine more thoroughly, and the ordinary consumers cannot complete the cleaning work well. Because the inner and outer drums of the drum washing machine cannot be easily disassembled by people during design, the inner and outer drums cannot be thoroughly cleaned.

Patent publication No. CN206266882U discloses a washing machine comprising: the washing machine comprises a base, a washing barrel, a driving piece, a door body, a locking device, a water inlet pipe and a water outlet pipe, wherein the washing barrel is rotatably arranged on the base around a horizontal rotating central shaft; a clothes taking and placing opening communicated with the washing cavity is formed in the peripheral wall of the washing barrel, one end of the door body is pivotally arranged on the peripheral wall of the washing barrel, and the door body is used for opening and closing the clothes taking and placing opening; one end of the water inlet pipe extends into the washing cavity, the other end of the water inlet pipe extends out of the washing cavity, one end of the water inlet pipe is provided with a nozzle extending upwards, the nozzle is in a hollow tubular shape with a closed upper end, and a plurality of water spray holes are formed in the peripheral wall of the nozzle; one end of the drain pipe extends into the washing cavity, the other end of the drain pipe extends out of the washing cavity, at least one part of one end of the drain pipe extends along the vertical downward direction, and a plurality of water passing holes are formed at the lower end of the drain pipe. That is, the patent discloses a drum washing machine without an outer drum, but the clothes taking and placing opening of the washing machine is arranged on the peripheral wall of the washing drum, which has three very serious disadvantages, the first one is that the door body on the washing drum needs to be positioned very accurately to open smoothly, so that an accurate positioning device needs to be arranged on the washing machine, which increases the cost of the washing machine, and in addition, the door body cannot be aligned easily to cause the door body to be opened smoothly even though the positioning device is installed, which affects the use experience of users; the second disadvantage is that the existing drum washing machine is mostly placed in an embedded manner, but if the door body is arranged at the top of the washing machine, the washing machine cannot be placed in an embedded manner; third, the current users are not used to the top-loading drum washing machine, and most users are also used to the drum washing machine which is open before, therefore, the washing machine is not the mainstream of the market, and the sale prospect is not ideal.

Therefore, there is a need in the art for a new solution to the above problems.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, to solve the problem of inconvenient cleaning of the existing drum washing machine, the present invention provides a drum drying method of a drum washing machine, the drum washing machine includes a box body, and the drum washing machine further includes: a fixing device disposed within the case; the metal drum is rotatably arranged in the fixing device and is used for containing articles to be washed and washing water, and a clothes throwing opening is formed at the first end of the metal drum; a water inlet and drain device comprising a water inlet and drain assembly and a water drain pump, wherein a first end of the water inlet and drain assembly is communicated with a second end of the metal cylinder, and a second end of the water inlet and drain assembly is communicated with the water drain pump; the electromagnetic heating device is arranged on the fixing device and can heat the metal cylinder; the cartridge drying method includes: after the washing water in the metal cylinder is discharged, the electromagnetic heating device is enabled to heat the metal cylinder; and starting the drainage pump so as to discharge the water vapor in the metal cylinder.

In a preferred embodiment of the above drum drying method, the drum drying method further includes: acquiring a humidity value of gas at an outlet of the drain pump; comparing the humidity value with a first preset value; and selectively stopping heating of the electromagnetic heating device according to the comparison result.

In a preferred embodiment of the above-described drum drying method, the step of "selectively stopping heating by the electromagnetic heating device according to the comparison result" specifically includes: and if the humidity value is smaller than the first preset value, stopping heating the electromagnetic heating device.

In a preferred embodiment of the above-described drum drying method, the step of "selectively stopping heating by the electromagnetic heating device according to the comparison result" specifically includes: and if the duration time of the humidity value smaller than the first preset value reaches preset time, stopping heating the electromagnetic heating device.

In a preferred embodiment of the above drum drying method, the drum drying method further includes: acquiring a temperature value of the metal cylinder; comparing the temperature value with a second preset value; and selectively stopping heating of the electromagnetic heating device according to the comparison result.

In a preferred embodiment of the above-described drum drying method, the step of "selectively stopping heating by the electromagnetic heating device according to the comparison result" specifically includes: and if the temperature value is greater than the second preset value, stopping heating the electromagnetic heating device.

In a preferred embodiment of the above-described drum drying method, the electromagnetic heating device includes an electromagnetic heating member, a driving member, and a transmission assembly connected between the electromagnetic heating member and the driving member, the driving member is mounted on the fixing device, and the drum heating method further includes: in the process that the electromagnetic heating device heats the metal tube, the driving component drives the electromagnetic heating component to move back and forth along the axial direction of the metal tube.

In a preferred embodiment of the above-mentioned drum drying method, the electromagnetic heating device further includes a first guide member provided on the fixing device and a second guide member provided on the electromagnetic heating member, and the first guide member and the second guide member are engaged with each other to prevent the electromagnetic heating member from shaking left and right during the reciprocating movement.

In a preferred embodiment of the above cylinder drying method, the water inlet and drain assembly includes a first water inlet and drain assembly, an adaptor, and a second water inlet and drain assembly, which are sequentially communicated with each other, the first water inlet and drain assembly is communicated with the metal cylinder, the second water inlet and drain assembly is communicated with the drain pump, the adaptor is mounted on the fixing device, and the first water inlet and drain assembly and a part of the adaptor connected to the first water inlet and drain assembly can rotate with the metal cylinder.

In a preferred embodiment of the above drum drying method, the drum drying method further includes: and in the process that the electromagnetic heating device heats the metal cylinder, the metal cylinder is continuously rotated.

As will be understood by those skilled in the art, in the preferred embodiment of the present invention, the drum washing machine has no outer tub, but only one metal tub for accommodating the items to be washed and the washing water, so that it is very convenient to wash only the inside of the metal tub. Moreover, compared with the washing machine disclosed in the patent with the publication number of CN206266882U, the washing machine of the present invention opens the laundry feeding opening at the front end of the metal cylinder, firstly, no matter the metal cylinder stops at any position, the cylinder door on the metal cylinder is aligned with the opening on the box body, and the situation that the cylinder door cannot be opened does not occur, secondly, the front opening type washing machine is adopted, which is very suitable for the use habit of most users, and the washing machine can be placed in an embedded manner, which saves space. In addition, the washing machine is also provided with an electromagnetic heating device, when the washing water needs to be heated, the metal cylinder can be directly heated so as to improve the temperature of the washing water in the metal cylinder, and the heating efficiency is high; after the washing water with in the metal cylinder discharges, heat the metal cylinder through electromagnetic heating device, can avoid producing the bacterium in the section of thick bamboo with remaining water evaporation to dryness in the metal cylinder, start the drain pump simultaneously and discharge the vapor in the metal cylinder, avoid the metal cylinder cooling back, the vapor recondenses into water.

Further, the drum drying method of the present invention further comprises: acquiring a temperature value of the metal cylinder; comparing the temperature value with a second preset value; and if the temperature value is larger than the second preset value, stopping heating the electromagnetic heating device. Through such setting, can avoid causing the incident because of the metal cylinder high temperature.

Further, the drum drying method of the present invention further comprises: and in the process that the electromagnetic heating device heats the metal cylinder, the metal cylinder is continuously rotated. Through making the metal drum continuously rotate, can be to metal drum even heating, be favorable to improving drying efficiency, save time.

Further, the electromagnetic heating device comprises an electromagnetic heating component, a driving component and a transmission assembly for connecting the electromagnetic heating component and the driving component, the driving component is mounted on the fixing device, and the driving component can drive the transmission assembly to move and accordingly drive the electromagnetic heating component to move back and forth along the axial direction of the metal cylinder. Through the arrangement, the electromagnetic heating component can uniformly heat the metal cylinder, so that the drying efficiency is improved.

Furthermore, the water inlet and drainage assembly comprises a first water inlet and drainage assembly, an adapter and a second water inlet and drainage assembly which are sequentially communicated, the first water inlet and drainage assembly is communicated with the second end of the metal cylinder, the second water inlet and drainage assembly is communicated with the drainage pump, the adapter is installed on the fixing device, and the first water inlet and drainage assembly and the part of the adapter connected with the first water inlet and drainage assembly can rotate along with the metal cylinder.

As known from the background art, the washing machine disclosed in the patent publication No. CN206266882U has two very serious disadvantages, the first one is that water in the washing tub is likely to leak, which causes safety accidents, and specifically, when the water pipe is extended into the washing chamber, an opening must be formed on the wall of the washing tub to allow the water pipe to pass through, but the water pipe is fixed, i.e., the water pipe and the washing tub are relatively rotated, so that it is difficult to seal the gap between the water pipe and the opening, and during the rotation of the washing tub, the water in the washing tub flows out along the gap between the water pipe and the opening; the second disadvantage is that the laundry in the washing tub collides with the water pipe, so that the laundry and the water pipe are easily damaged.

Compared with the washing machine disclosed in the patent with the publication number of CN206266882U, in the washing machine of the present invention, when the metal cylinder rotates, the first water inlet and outlet assembly can rotate synchronously with the metal cylinder, so that only one water passage opening needs to be formed in the metal cylinder to communicate the first water inlet and outlet assembly with the water passage opening, the first water inlet and outlet assembly does not need to extend into the metal cylinder, water leakage does not occur, and the clothes in the metal cylinder do not collide with the water pipe.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

FIG. 1 is a first schematic structural diagram of a drum washing machine according to the present invention;

FIG. 2 is a second schematic structural view of the drum washing machine of the present invention;

FIG. 3 is a third schematic structural view of the drum washing machine of the present invention;

FIG. 4 is a schematic structural view of a fixing device of the drum washing machine according to the present invention;

fig. 5 is a schematic structural view of a washing tub of the drum washing machine of the present invention;

FIG. 6 is an assembly view of a first water pipe and a water collecting member of the drum washing machine according to the present invention;

FIG. 7 is a schematic structural view of a water collecting member of the drum washing machine according to the present invention;

FIG. 8 is an assembly view of the spindle, the tubular structure and the adaptor of the drum washing machine of the present invention;

fig. 9 is a structural schematic view of a coupling member of the drum washing machine of the present invention;

FIG. 10 is a first schematic view of the assembly of the washing tub and the electromagnetic heating device of the drum washing machine of the present invention;

FIG. 11 is a second schematic view of the assembly of the washing tub and the electromagnetic heating device of the drum washing machine of the present invention;

FIG. 12 is a flow chart of a drum drying method of the drum washing machine of the present invention;

fig. 13 is a flowchart of an embodiment of a drum drying method of a drum washing machine of the present invention.

List of reference numerals:

1. a box body; 2. a washing drum; 21. a metal cylinder; 22. a rotating shaft; 23. a connecting member; 24. a bearing; 211. a laundry input port; 212. a water inlet; 213; a water collecting ring; 221. a channel; 231. a cylindrical body; 232. a connecting arm; 2321. a strip; 2322. a reinforcement; 31. a first motor; 32. a belt; 33. a belt pulley; 41. a suspension spring; 42. a damper; 51. a main frame; 52. a roller; 511. a tubular structure; 512. a cross beam; 513. an upper containment zone; 514. a lower containment zone; 61. a first water pipe; 62. a water collection member; 63. a connecting pipe; 64. rotating the tee; 65. a water inlet pipe; 66. a drain pipe; 67. draining pump; 621. a water diversion port; 641. a rotation port; 642. a fixed port; 71. communicating the chambers; 72. an accommodating chamber; 73. a spherical structure; 81. an electromagnetic heating member; 82. a second motor; 83. a lead screw; 84. a nut; 85. a support plate; 86. a guide bar; 87. a connecting rod; 88. a plate-like member; 89. a rod-like member; 851. a guide groove.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the following embodiments are merely illustrative of the technical principles of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 3, wherein fig. 1 is a first structural schematic view of a drum washing machine according to the present invention; FIG. 2 is a second schematic structural view of the drum washing machine of the present invention; fig. 3 is a third schematic structural view of the drum washing machine of the present invention.

As shown in fig. 1 to 3, the drum washing machine of the present invention includes a cabinet 1, and a fixing device, a washing tub 2, a driving device, a water inlet and outlet device, and a vibration damping device are provided in the cabinet 1.

With continued reference to fig. 1 to 3, the washing tub 2 is used to contain the items to be washed and the washing water, and a laundry input opening 211 is formed at a front end (a left end of the washing tub 2 as viewed in fig. 1) of the washing tub 2. The washing drum 2 is rotatably disposed in the fixing device, and the driving device is drivingly connected to a rear end (a right end of the washing drum 2 as viewed in fig. 1) of the washing drum 2, and the driving device can drive the washing drum 2 to rotate when the washing machine is operated. Wherein, the rear end of the washing drum 2 has a rotating shaft 22, the washing drum 2 is rotatably connected with the fixing device through the rotating shaft 22, exemplarily, the driving device includes a first motor 31, a belt 32 and a belt pulley 33, wherein the belt pulley 33 is fixedly connected with the rotating shaft 22, one end of the belt 32 is connected with an output shaft of the first motor 31, a small belt pulley is generally installed on the output shaft of the first motor 31, one end of the belt 32 is connected with the small belt pulley, the other end of the belt 32 is connected with the belt pulley 33 installed on the rotating shaft 22, and the first motor 31 drives the belt pulley 33 and the rotating shaft 22 to rotate through the belt 32.

It should be noted that the driving device is not limited to the specific example described above, for example, a direct drive motor may be used for driving, a stator device of the direct drive motor may be mounted on the fixing device, and a rotor of the direct drive motor may be mounted on the rotating shaft 22, and such modifications and changes to the specific structural form of the driving device should be limited within the protection scope of the present invention without departing from the principle and scope of the present invention.

With continued reference to fig. 1 to 3, the water inlet and outlet means, through which water can be supplied into the washing tub 2 or water in the washing tub 2 can be discharged, communicates with the rear end of the washing tub 2.

Referring to fig. 1 to 3, the vibration damping device is disposed between the fixing device and the cabinet 1, and damps vibration by the vibration damping device to reduce vibration noise of the washing machine. The vibration damping device comprises a hanging spring 41 and a damper 42, the top of the fixing device is fixedly connected with the box body 1 through the hanging spring 41, and the bottom of the fixing device is fixedly connected with the box body 1 through the damper 42.

With continuing reference to fig. 1-3 and with continuing reference to fig. 4, fig. 4 is a schematic structural diagram of the fixing device of the drum washing machine of the present invention.

As shown in fig. 1 to 4, the fixing device includes a main frame 51, the washing tub 2 is rotatably disposed in the main frame 51, and the rotation shaft 22 is rotatably connected to a rear end (a right end of the main frame 51 as viewed in fig. 1) of the main frame 51. A support structure is provided at the rear end of the main frame 51, to which the rotation shaft 22 is rotatably connected. Wherein the support structure is a cylindrical structure 511.

With continued reference to fig. 2 and 4, the fixing device further comprises a plurality of rollers 52 disposed on the main frame 51, wherein the plurality of rollers 52 abut against the outer wall of the washing tub 2 when installed. Exemplarily, the main frame 51 includes 4 cross beams 512 arranged along the axial direction of the washing drum 2, one roller 52 is installed on each cross beam 512, and the roller 52 is disposed near the front end of the main frame 51, and the roller 52 is disposed to support the front end of the washing drum 2, so that the pressure of the rear end of the washing drum 2 on the rotating shaft 22 can be greatly reduced, thereby not only reducing the design difficulty and the processing cost of the rotating shaft 22, but also prolonging the service life of the rotating shaft 22.

With continued reference to fig. 4, the main frame 51 includes two accommodation areas, which are vertically disposed, denoted as an upper accommodation area 513 and a lower accommodation area 514, wherein the washing drum 2 is located in the upper accommodation area 513.

Referring to fig. 5, fig. 5 is a schematic structural view of a washing tub of a drum washing machine according to the present invention. As shown in fig. 5, a water passing structure is formed at the rear end of the washing tub 2, and the water inlet and outlet means communicates with the water passing structure, so that water can be supplied into the washing tub 2 or water in the washing tub 2 can be discharged through the water passing structure. Preferably, the water passing structure is a water passing port 212 formed at a boundary of the rear wall and the inner wall of the washing tub 2. The water opening 212 is provided at the boundary between the rear wall and the inner cylindrical wall, which is more advantageous for discharging the water in the washing tub 2. The inner diameter of the front end of the washing drum 2 is smaller than the inner diameter of the rear end of the washing drum 2. With this arrangement, the water in the washing tub 2 can be more easily flowed to the water passage opening 212.

With continued reference to fig. 5, a water collecting ring 213 is formed on the inner wall of the washing tub 2, and the water collecting ring 213 is communicated with the water inlet 212. As can be seen from the figure, the water collecting ring 213 is a circular groove-shaped structure protruding outward from the inner wall of the washing drum 2 along the radial direction of the washing drum 2, so that the bottom of the water collecting ring 213 is lower than the inner wall of the washing drum 2, and thus, the water in the washing drum 2 is collected to the water collecting ring 213, which is beneficial to discharging the water in the washing drum 2.

With continuing reference to fig. 1 to 5 and with continuing reference to fig. 6 to 8, fig. 6 is a schematic view illustrating an assembly of the first water pipe and the water collecting member of the drum washing machine according to the present invention; FIG. 7 is a schematic structural view of a water collecting member of the drum washing machine according to the present invention; fig. 8 is an assembly view of the rotating shaft, the cylindrical structure and the adaptor of the drum washing machine of the present invention.

As shown in fig. 1, 3, 6 and 8, the water inlet and drain device includes a water inlet and drain assembly and a drain pump 67, a first end of the water inlet and drain assembly communicates with the rear end of the washing tub 2, and a second end of the water inlet and drain assembly communicates with the drain pump 67. The water inlet and drainage assembly comprises a first water inlet and drainage assembly, an adapter and a second water inlet and drainage assembly which are sequentially communicated, the first water inlet and drainage assembly is communicated with the water through port 212 formed at the rear end of the washing cylinder 2, namely, the first water inlet and drainage assembly does not need to extend into the washing cylinder 2, the second water inlet and drainage assembly is communicated with the drainage pump 67, and the adapter is installed on the cylindrical structure 511. When the washing cylinder 2 rotates, the first water inlet and drainage assembly and the part of the adaptor connected with the first water inlet and drainage assembly can rotate along with the washing cylinder 2, and the second water inlet and drainage assembly and the part of the adaptor connected with the second water inlet and drainage assembly are fixed.

That is, the water inlet and drain device includes three core structures, namely, a first water inlet and drain assembly communicated with the washing tub 2, a second water inlet and drain assembly communicated with the drain pump 67, and an adapter for connecting the first water inlet and drain assembly and the second water inlet and drain assembly, and the key of the three core structures lies in that the adapter, specifically, the adapter itself includes two parts, the first part is connected with the first water inlet and drain assembly, the second part is connected with the second water inlet and drain assembly, the two parts of the adapter are relatively rotatable, and the second part is installed on the fixing device, so that when the washing tub 2 rotates, the first water inlet and drain assembly and the first part of the adapter can rotate together with the washing tub 2, and the second water inlet and drain assembly is communicated with the drain pump 67 and needs to be fixed.

With continued reference to fig. 1, 3 and 8, the adaptor is preferably configured as a rotary tee 64, the rotary tee 64 includes two rotary ports 641 and two fixed ports 642, wherein the rotary ports 641 are communicated with the first water inlet and outlet assembly and can rotate along with the first water inlet and outlet assembly, the second water inlet and outlet assembly includes a water inlet pipe 65 and a water outlet pipe 66, one of the two fixed ports 642 is a water inlet and is communicated with the water inlet pipe 65, the other end of the water inlet pipe 65 is connected with an external water supply source, the other fixed port 642 is a water outlet and is communicated with the water outlet pipe 66, and the other end of the water outlet pipe 66 is connected with the drain pump 67.

With continued reference to fig. 5 to 8, the first water inlet and outlet assembly includes a first water pipe 61, a water collecting member 62 and a connecting pipe 63 which are sequentially communicated, wherein the number of the first water pipes 61 may be multiple. Illustratively, the number of the first water pipes 61 is three, and correspondingly, the number of the water through openings 212 is also 3, the three water through openings 212 are arranged along the circumferential direction of the washing drum 2, the first end of the first water pipe 61 is communicated with the corresponding water through opening 212, one end of the water collecting member 62 is provided with three water dividing openings 621, the number of the water dividing openings 621 is three, the second end of the first water pipe 61 is communicated with the corresponding water dividing openings 621, the other end of the water collecting member 62 is provided with a concentration opening (not shown), the plurality of water dividing openings 621 are all communicated with the concentration opening, and the concentration opening of the water collecting member 62 is communicated with the rotation opening 641 of the rotary tee 64 through the connecting pipe 63. Thus, the three first water pipes 61 are communicated with the swivel tee 64 through the water collecting member 62 and the connecting pipe 63. The three first water pipes 61 are communicated through the water collecting piece 62, water can be discharged simultaneously through the three first water pipes 61 during water discharging, and similarly, water can be fed simultaneously through the three first water pipes 61 during water feeding.

It should be noted that in practical applications, a person skilled in the art can omit the connecting pipe 63 to directly connect the water collecting member 62 with the rotating tee 64, and such flexible adjustment and change do not depart from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.

With continued reference to fig. 8, a passage 221 is provided in the rotating shaft 22, and the first water inlet and outlet assembly is communicated with the rotating tee 64 through the passage 221 and the cylindrical structure 511. Wherein, the inner diameter of the channel 221 is larger than the outer diameter of the cylindrical structure 511, the cylindrical structure 511 is inserted into the channel 221 of the rotating shaft 22, and the two are connected through the bearing 24, so that the two can rotate relatively.

With continuing reference to fig. 5 and 8 and with subsequent reference to fig. 9, fig. 9 is a schematic structural view of the connecting member of the drum washing machine according to the present invention.

As shown in fig. 5, 8 and 9, the washing tub 2 includes a metal tub 21, a rotation shaft 22 and a connection member 23, wherein the metal tub 21 is used for accommodating articles to be washed and washing water, a laundry input port 211, a water passage port 212 and a drip ring 213 are formed on the metal tub 21, one end of the connection member 23 is connected to a rear end (a right end of the metal tub 21 as viewed in fig. 5) of the metal tub 21, and the other end of the connection member 23 is connected to the rotation shaft 22. That is, the rotating shaft 22 is fixedly connected to the metal tube 21 through the connecting member 23, the driving device drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the metal tube 21 to rotate synchronously through the connecting member 23.

The connecting member 23 includes a cylindrical body 231 and connecting arms 232 connected to each other, wherein the number of the connecting arms 232 is plural, for example, the number of the connecting arms 232 is three, the three connecting arms 232 are arranged along the circumferential direction of the cylindrical body 231, preferably, uniformly arranged along the circumferential direction of the cylindrical body 231, the connecting arms 232 and the cylindrical body 231 may be fixedly connected, or may be integrally provided, when mounting, the rotating shaft 22 may be inserted into the cylindrical body 231, and the two may be in interference fit. In the mounted state, the connecting arm 232 is fixedly connected to the rear end of the metal cylinder 21, the rotating shaft 22 is fixedly connected to the cylindrical body 231, and a certain gap is provided between the end of the rotating shaft 22 and the rear end of the metal cylinder 21, through which the second end of the first water pipe 61 can enter the passage 221 of the rotating shaft 22.

Specifically, when the water collector 62 is mounted, the water collector 62 may be fixed to the cylindrical body 231 of the connecting member 23, the water collector 62 may be positioned in the gap between the rotating shaft 22 and the metal cylinder 21, the water dividing port 621 of the water collector 62 may be directed toward the metal cylinder 21, and the concentration port of the water collector 62 may be directed toward the passage 221 of the rotating shaft 22, so that the second end of the first water pipe 61 may be directly communicated with the corresponding water dividing port 621, the connecting pipe 63 may be positioned inside the passage 221 and the cylindrical structure 511, the concentration port of the water collector 62 may be communicated with the left end of the connecting pipe 63, the rotating tee 64 may be fixed to the cylindrical structure 511, the rotating port 641 of the connecting pipe 63 may be extended into the cylindrical structure 511, the right end of the connecting pipe 63 may be communicated with the rotating port 641, and the connecting pipe 63, the water collector 62, and the first water pipe 61 may be rotated synchronously with the metal cylinder 21. Of course, it is also possible to fixedly connect the water collecting member 62 to the rotation shaft 22 and to install the water collecting member 62 in the passage 221 of the rotation shaft 22.

The three first water pipes 61 may be supplied with water or drained at the same time. In order to prevent air leakage during draining, the washing tub 2 can be kept in a rotating state, and washing water is distributed along the water collecting ring 213 under the action of centripetal force, so that all three water passing ports 212 are immersed in the water, thereby improving the draining capability of the washing machine and reducing the washing time.

Continuing to refer to fig. 9, the three connecting arms 232 are identical in structure, taking one of the three connecting arms as an example, each connecting arm 232 includes two bars 2321 and a reinforcement 2322, wherein the number of the bars 2321 is two, the two bars 2321 are arranged in a gap, and the bars 2321 are fixedly connected with or integrally arranged with the cylindrical body 231; the number of the reinforcing members 2322 is plural, for example, the number of the reinforcing members 2322 is two, and both ends of the reinforcing members 2322 are respectively fixedly connected with the two bar members 2321 or integrally disposed.

Preferably, the drum washing machine of the present invention further comprises an air leakage preventing means for maintaining the water passage opening 212 in a communication state with the corresponding first water pipe 61 when the washing tub 2 is in a rotating state, and for maintaining the water passage opening 212 not immersed in water in a blocking state with the corresponding first water pipe 61 when the washing tub 2 is in a stationary state.

When the washing machine is in a rotating state, for example, when the washing machine performs a dehydration process, the air leakage preventing device can maintain the water passing ports 212 in a communication state with the corresponding first water pipes 61, that is, the three water passing ports 212 and the corresponding first water pipes 61 in a communication state, so that the three first water pipes 61 can simultaneously discharge water, thereby improving the drainage capacity of the washing machine.

In the case where the washing machine is in a stationary state, for example, between the execution of the washing process and the rinsing process, the water in the washing tub 2 needs to be drained, and at this time, the water in the washing tub 2 is entirely located at the lower portion of the washing tub 2, only the water passage ports 212 located at the bottom portion of the three water passage ports 212 are immersed in the water, and the other two water passage ports 212 are located at the upper portion and are not immersed in the water, the air leakage preventing means can maintain the two water passage ports 212 located at the upper portion (i.e., the water passage ports 212 not immersed in the water) and the corresponding first water pipes 61 in a disconnected state, and thus, after the drain pump 67 is started, the air leakage of the two first water pipes 61 can be prevented, and the smooth execution.

As shown in fig. 5, the air leakage preventing device includes a plurality of air leakage preventing units, and illustratively, the air leakage preventing device includes three air leakage preventing units, and the three air leakage preventing units may have the same structure or different structures, and of course, it is preferable that the three air leakage preventing units are provided with the same structure.

The air leakage prevention unit comprises two air leakage prevention members which are matched with each other, a cavity is formed in the first air leakage prevention member, the second air leakage prevention member is located in the cavity, the top end of the cavity is communicated with the first water pipe 61, the middle position close to the cavity is communicated with the water through hole 212, the section of the cavity is a communication cavity 71 and used for communicating the first water pipe 61 and the water through hole 212, a cavity at one end below the communication cavity 71 is a containing cavity 72, the second air leakage prevention member is generally located in the containing cavity 72, the second air leakage prevention member is of a spherical structure 73, and the outer diameter of the spherical structure 73 is larger than the inner diameter of the first water pipe 61 and smaller than the inner diameter of the communication cavity 71.

When the washing tub 2 rotates, the spherical structure 73 is always located in the accommodating chamber 72 by the centrifugal force, and in this case, the water passage opening 212 is in communication with the corresponding communication chamber 71 and the first water pipe 61. When the washing drum 2 stops rotating, two air leakage prevention units are positioned at the upper part, and one air leakage prevention unit is positioned at the bottom end. The spherical structure 73 of the air leakage prevention unit at the bottom end is positioned in the accommodating chamber 72 under the action of self gravity, and the water through port 212 at the bottom end (the water through port 212 is immersed in water) is communicated with the corresponding communication chamber 71 and the first water pipe 61, so that water can be drained. The spherical structure 73 of the upper air leakage preventing unit moves toward the first water pipe 61 by its own weight, and the first water pipe 61 can be sealed because the outer diameter of the spherical structure 73 is larger than the inner diameter of the first water pipe 61, and particularly, after the drain pump 67 is started, the spherical structure 73 can more tightly seal the first water pipe 61 under the suction force of the drain pump 67 to prevent the first water pipe 61 from air leakage. Of course, the outer diameter of the spherical structure 73 may be larger than the inner diameter of the communication chamber 71, so that the spherical structure 73 can directly seal the communication chamber 71, that is, indirectly seal the first water pipe 61, and also prevent the first water pipe 61 from leaking air.

It should be noted that the air leakage preventing means may include only two air leakage preventing units, one of the three water openings 212 is mainly two, the air leakage preventing unit is not provided at the main water opening 212, the air leakage preventing unit is provided only at the other two water openings 212, when the washing tub 2 stops rotating, the main water opening 212 is positioned at the bottom to drain water, and the other two water openings 212 are sealed by the air leakage preventing unit.

Referring to fig. 10 and 11, fig. 10 is a first schematic view illustrating an assembly of a washing tub and an electromagnetic heating device of the drum washing machine according to the present invention; fig. 11 is a second schematic view of the assembly of the washing tub and the electromagnetic heating device of the drum washing machine of the present invention.

As shown in fig. 10 and 11, the drum washing machine of the present invention further includes an electromagnetic heating device mounted on the fixing device, and for example, the electromagnetic heating device may be mounted in the lower receiving area 514 of the main frame 51, and the metal tub 21 may be directly heated by the electromagnetic heating device to raise the temperature of the washing water in the metal tub 21. The metal cylinder 21 may be made of magnetic stainless steel.

With continued reference to fig. 10 and 11, the electromagnetic heating apparatus includes an electromagnetic heating member 81, a driving member and a transmission assembly, the electromagnetic heating member 81 is connected to the driving member through the transmission assembly, the driving member is mounted on the fixing apparatus, for example, the driving member may be mounted in the lower receiving area 514 of the main frame 51, after the electromagnetic heating member 81 is powered, the driving member may be activated, and the driving member drives the transmission assembly to move so as to drive the electromagnetic heating member 81 to reciprocate along the axial direction of the metal cylinder 21. By reciprocating the electromagnetic heating member 81 in the axial direction of the metal tube 21, the metal tube 21 can be uniformly heated, and the heating efficiency can be improved.

With continued reference to fig. 10 and fig. 11, the driving member is preferably a motor, which is denoted as a second motor 82, the transmission assembly includes a lead screw 83 and a nut 84, the lead screw 83 is in threaded engagement with the nut 84, wherein the lead screw 83 is fixedly connected with an output shaft of the second motor 82, the nut 84 is connected with the electromagnetic heating member 81, the second motor 82 can drive the lead screw 83 to rotate, and when the lead screw 83 rotates, the nut 84 can move left and right along the lead screw 83, and at the same time, the electromagnetic heating member 81 is driven to reciprocate along the axial direction of the metal cylinder 21.

The electromagnetic heating device further comprises a guide assembly, wherein the guide assembly comprises a first guide member and a second guide member, the first guide member is arranged on the fixing device, the second guide member is arranged on the electromagnetic heating member 81, and in the process that the second motor 82 drives the electromagnetic heating member 81 to reciprocate, the first guide member and the second guide member are matched with each other to prevent the electromagnetic heating member 81 from shaking left and right in the reciprocating process. Through the arrangement, the electromagnetic heating component 81 is more stable in the reciprocating movement process, and the heating efficiency is improved.

With continuing reference to fig. 10 and 11, the first guide member includes two support plates 85 disposed oppositely, the two support plates 85 are disposed oppositely from left to right when viewed from fig. 11, each support plate 85 is provided with a guide groove 851, the guide groove 851 extends along the length direction of the metal cylinder 21, the second guide member includes a guide rod 86 and a connecting rod 87, the guide rod 86 is fixedly connected with the electromagnetic heating member 81 through the connecting rod 87, when the electromagnetic heating member 81 is installed, the guide rod 86 is disposed between the two support plates 85, and two ends of the guide rod 86 are respectively located in the guide grooves 851 disposed on the two support plates 85, the guide rod 86 is adapted to the guide grooves 851, and during the reciprocating movement of the electromagnetic heating member 81, the two ends of the guide rod 86 slide along the guide grooves 851, so as to prevent the electromagnetic heating member 81 from shaking from left to right.

It should be noted that, in practical applications, a person skilled in the art may also set the first guide member and the second guide member to other structural forms, for example, the first guide member includes two horizontal guide rods, which are arranged side by side from left to right, the second guide member is set to a vertical plate-shaped member, which is provided with two guide holes, which correspond to the two guide rods, respectively, and so on, and such adjustment and change to the specific structural forms of the first guide member and the second guide member do not depart from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.

With continued reference to fig. 10, the number of the guide rods 86 and the connecting rods 87 is two, the guide rods 86 correspond to the connecting rods 87 one by one, the guide rods 86 are connected to the electromagnetic heating member 81 through the corresponding connecting rods 87, and the two guide rods 86 are arranged back and forth along the length direction of the metal cylinder 21. The stability of the electromagnetic heating component 81 in the reciprocating process can be further improved through the common guidance of the two guide rods 86 arranged in the front and the back.

With reference to fig. 10, the guide groove 851 is inclined downward in a direction from the front end of the metal cylinder 21 toward the rear end of the metal cylinder 21, and the guide groove 851 is inclined downward in the right direction as viewed in the drawing, so that the distance between the electromagnetic heating member 81 and the outer cylinder wall of the metal cylinder 21 is kept constant during the reciprocating movement, which is advantageous for improving the heating efficiency.

A horizontal plate-shaped member 88 can be arranged between the two connecting rods 87, a through hole is formed in the plate-shaped member 88, a vertical rod-shaped member 89 is arranged on the nut 84, the top end of the rod-shaped member 89 penetrates through the through hole, and the rod-shaped member 89 can freely move up and down in the through hole, so that the electromagnetic heating member 81 can be driven to move back and forth by the vertical rod-shaped member 89, and the electromagnetic heating member 81 can be allowed to move up and down.

Based on the above drum washing machine, the present invention also provides a drum drying method, as shown in fig. 12, the drum drying method including: after the washing water in the metal cylinder is discharged, the electromagnetic heating device heats the metal cylinder; the drain pump is started to discharge the water vapor in the metal cylinder. After the washing procedure ends, have remaining water to remain in the metal cylinder, heat the metal cylinder through electromagnetic heating device, can avoid producing the bacterium in the section of thick bamboo with remaining evaporation to dryness in the metal cylinder, start the drain pump simultaneously and discharge the vapor in the metal cylinder, avoid the metal cylinder cooling back, the vapor condenses into water again.

Preferably, the drum drying method of the present invention further comprises: acquiring a humidity value of gas at an outlet of the drain pump; comparing the humidity value with a first preset value; and selectively stopping heating of the electromagnetic heating device according to the comparison result. A humidity sensor can be arranged at the outlet of the drainage pump to detect the humidity of the gas, and whether the water remained in the metal cylinder is evaporated to dryness can be judged according to the humidity value of the gas at the outlet of the drainage pump. The step of "selectively stopping the heating of the electromagnetic heating device according to the comparison result" specifically includes: and if the humidity value is smaller than the first preset value, stopping heating the electromagnetic heating device. When the humidity value is smaller than the first preset value, the residual water in the metal cylinder is evaporated to dryness, and the electromagnetic heating device can stop heating. Preferably, as shown in fig. 13, when the duration of the humidity value being less than the first preset value reaches the preset time, the electromagnetic heating device is caused to stop heating. That is to say, when the humidity value is smaller than the first preset value, heating is not stopped at first, and only when the duration time that the humidity value is smaller than the first preset value reaches the preset time, heating is stopped.

Preferably, the drum drying method of the present invention further comprises: acquiring a temperature value of the metal cylinder; comparing the temperature value with a second preset value; and selectively stopping heating of the electromagnetic heating device according to the comparison result. A temperature sensor can be arranged on the metal cylinder and used for detecting the temperature of the metal cylinder and judging whether the temperature of the metal cylinder is too high or not according to the temperature of the metal cylinder. The step of "selectively stopping the heating of the electromagnetic heating device according to the comparison result" specifically includes: and if the temperature value is larger than the second preset value, stopping heating the electromagnetic heating device. When the temperature value is larger than the second preset value, the temperature of the metal cylinder is too high, heating needs to be stopped timely, and safety accidents caused by the fact that the temperature of the metal cylinder is too high are avoided.

Preferably, the drum drying method of the present invention further comprises: and in the process that the electromagnetic heating device heats the metal cylinder, the metal cylinder is continuously rotated. Through making the metal drum continuously rotate, can be to metal drum even heating, be favorable to improving drying efficiency, save time.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.