CN114517374A - Drum washing machine - Google Patents

Abstract

The invention belongs to the technical field of washing equipment and aims to solve the problem that an existing drum washing machine is inconvenient to clean. To this end, the present invention provides a drum washing machine, comprising: a box body; a fixing device; a washing drum rotatably disposed in the fixing device, a laundry input port being formed at a first end of the washing drum; the water inlet and drainage device is communicated with the second end of the washing drum; one side of box is provided with the machine door, and the clothing mouth of puting in can be opened or closed to the machine door, and the stator module that directly drives the motor sets up on the machine door, and the rotor subassembly that directly drives the motor sets up on washing a section of thick bamboo. By eliminating the outer drum of the washing machine, only one washing drum is reserved for containing the articles to be washed and the washing water, so that the washing machine is very convenient as only the inside of the washing drum needs to be cleaned. In addition, the stator assembly of the direct drive motor is arranged on the machine door, and the rotor assembly of the direct drive motor is arranged on the washing drum.

Description

Drum washing machine

Technical Field

The invention belongs to the technical field of washing equipment, and particularly provides 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 drum washing machine to solve 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 washing machine, which comprises a box body, and the drum washing machine further comprises: a fixing device disposed within the case; the washing drum is rotatably arranged in the fixing device and is used for containing articles to be washed and washing water, and a clothes putting-in opening is formed at the first end of the washing drum; a water inlet and drain device communicated with the second end of the washing drum so as to supply water into the washing drum or drain the water in the washing drum; the direct-drive motor can drive the washing drum to rotate; the clothes washing machine comprises a box body, a clothes input opening, a direct-drive motor, a stator assembly and a rotor assembly, wherein a machine door is arranged on one side of the box body and can open or close the clothes input opening, the stator assembly of the direct-drive motor is arranged on the machine door, and the rotor assembly of the direct-drive motor is arranged on the washing drum.

In a preferred embodiment of the above drum washing machine, the door includes a body, an elastic assembly, and a cylindrical member, the cylindrical member can open or close the laundry input opening, the cylindrical member is connected to the body through the elastic assembly, the washing tub is rotatably connected to the cylindrical member, and the stator assembly is disposed on the body.

In a preferred embodiment of the drum washing machine, a portion of the cylindrical member rotatably connected to the washing tub is formed in a cone shape.

In a preferred embodiment of the above drum washing machine, the washing drum is provided with a bearing, and an inner ring of the bearing is tapered and is adapted to the cylindrical member.

In a preferred technical solution of the above drum washing machine, an annular protrusion is provided on the washing drum, the bearing is provided on an inner annular surface of the annular protrusion, and the rotor assembly is provided on an outer annular surface of the annular protrusion.

In a preferred embodiment of the drum washing machine, the elastic assembly includes a first elastic assembly and a second elastic assembly, the first elastic assembly is disposed along an axial direction of the cylindrical member, and the second elastic assembly is disposed along a radial direction of the cylindrical member.

In the preferable technical scheme of the drum washing machine, the cylindrical member comprises a flange section, a cylinder section and a cone section which are sequentially connected, the flange section is connected with the body of the machine door through the first elastic assembly, the cylinder section is connected with the body of the machine door through the second elastic assembly, and the washing drum is rotatably connected with the cone section.

In the preferable technical scheme of the drum washing machine, the machine door further comprises an inner transparent window, the inner transparent window is embedded into the cylindrical component, a circle of elastic waterproof skirt edge is arranged along the circumferential direction of the inner transparent window, and when the machine door is in a closed state, the elastic waterproof skirt edge is attached to the inner wall of the washing cylinder.

In a preferred technical scheme of the drum washing machine, the water inlet and drain device comprises a first water inlet and drain assembly, an adapter and a second water inlet and drain assembly which are sequentially communicated, the first water inlet and drain assembly is communicated with the second end of the washing drum, the second water inlet and drain assembly is communicated with the outside, the adapter is installed on the fixing device, and the first water inlet and drain assembly and the part of the adapter connected with the first water inlet and drain assembly can rotate along with the washing drum.

In a preferred embodiment of the above drum washing machine, the washing drum is disposed obliquely upward along a direction from the second end to the first end thereof.

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 washing 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 washing tub. Moreover, compared with the washing machine disclosed in the patent with the publication number of CN206266882U, the washing machine of the present invention has the laundry input opening opened at the front end of the washing drum, the drum door is not provided, the laundry input opening is closed through the machine door, the situation that the drum door cannot be opened does not exist, secondly, the front opening type washing machine is adopted, which is very suitable for the use habits of most users, and the washing machine can be placed in an embedded manner, which saves space. In addition, the direct drive motor is adopted to directly drive the washing drum, the stator assembly of the direct drive motor is arranged on the machine door, and the rotor assembly of the direct drive motor is arranged on the washing drum; the direct-drive motor is arranged at the front end of the washing cylinder, so that the space at the rear end of the washing cylinder is more sufficient, the layout is more reasonable, the direct-drive motor is maintained, and the heat dissipation of the motor is facilitated.

Further, a portion of the cylindrical member rotatably connected to the washing tub is provided in a cone shape. By such an arrangement, when the door is closed, the cylindrical member can be inserted into the washing drum smoothly and has a self-locking function and effect.

Furthermore, a circle of elastic waterproof skirt is arranged along the circumferential direction of the inner transparent window, and when the machine door is in a closed state, the elastic waterproof skirt is attached to the inner wall of the washing cylinder. Through the arrangement, the water in the washing cylinder can be prevented from flowing out.

Furthermore, the water inlet and drainage device 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 washing cylinder, the second water inlet and drainage assembly is communicated with the outside, 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 washing 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 washing drum rotates, the first water inlet and outlet assembly can rotate synchronously with the washing drum, so that only one water passage opening needs to be formed in the washing drum 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 washing drum, water leakage does not occur, and the clothes in the washing drum do not collide with the water pipe.

Further, the washing tub is disposed obliquely upward in a direction toward the first end thereof along the second end thereof. Through the arrangement, the water in the washing drum is completely concentrated at the second end of the washing drum, and the water can be effectively prevented from flowing out from the clothes inlet of the washing drum.

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 a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a drum washing machine according to a first embodiment of the present invention;

fig. 3 is a third schematic structural view of a drum washing machine according to a first embodiment of the present invention;

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

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

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

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

fig. 8 is an assembly view of the rotating shaft, the supporting cylinder and the adaptor of the drum washing machine according to the first embodiment of the present invention;

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

fig. 10 is an assembly view of a door, a direct drive motor and a washing drum of a drum washing machine according to a second embodiment of the present invention;

FIG. 11 is a cross-sectional view taken at A-A of FIG. 10;

fig. 12 is a schematic structural view of a drum washing machine according to a second embodiment of the present invention.

List of reference numerals:

1. a box body; 11. a machine door; 111. a body; 112. a cylindrical member; 113. a first spring; 114. a second spring; 115. a screw; 116. an outer transparent window; 117. an inner transparent window; 118. an elastic waterproof skirt; 1111. a second blind hole; 1112. a third blind hole; 1121. a flange section; 1122. a cylinder section; 1123. a conical section; 11211. a first blind hole; 11121. a first bore section; 11122. a second bore section; 11221. a threaded through hole;

2. a washing drum; 21. a barrel; 22. a rotating shaft; 23. a connecting member; 24. a first bearing; 25. a second bearing; 26. a window pad; 211. a laundry input port; 212. a water inlet; 213. a water collecting ring; 214. a water guide groove; 215. an annular projection; 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 support cylinder; 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. a stator assembly; 72; a rotor assembly.

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.

Example one

First, a first embodiment of the drum washing machine according to the present invention will be described in detail with reference to fig. 1 to 9.

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 disposed in the cabinet 1.

With continued reference to fig. 1 to 3, the washing drum 2 is used for accommodating articles to be washed and washing water, a laundry input opening 211 is formed at a front end (the left end of the washing drum 2 as viewed in fig. 1) of the washing drum 2, the washing drum 2 is rotatably disposed in the fixing device, the driving device is drivingly connected to a rear end (the 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 in operation. 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.

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 performs vibration damping 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.

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. At the rear end of the main frame 51, a support structure is provided, to which the rotation shaft 22 is rotatably connected. Wherein the support structure is a support cylinder 511. The main frame 51 includes two accommodation areas, which are disposed in a vertical direction, 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.

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.

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. In addition, the inner diameter of the front end of the washing tub 2 is smaller than the inner diameter of the rear end of the washing tub 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 water in the washing drum 2 is collected into the water collecting ring 213, which is favorable for draining the water in the washing drum 2. The inner wall of the washing drum 2 is further provided with a plurality of water guide structures, the water guide structures extend along the axial direction of the washing drum 2, and the rear ends (the right ends of the water guide structures as viewed in fig. 5) of the water guide structures are communicated with the water collecting ring 213. Wherein, the water guiding structure is a water guiding groove 214 formed on the inner cylinder wall.

As shown in fig. 1, 3, 6 and 8, the water inlet and drain device includes a first water inlet and drain assembly, an adaptor and a second water inlet and drain assembly which are sequentially communicated, wherein the first water inlet and drain assembly is communicated with the water passing port 212 formed at the rear end of the washing tub 2, that is, the first water inlet and drain assembly does not need to extend into the washing tub 2, the second water inlet and drain assembly is communicated with the outside, and the adaptor is mounted on a support cylinder 511 provided at the rear end of the fixing device. 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 comprises three core structures, namely a first water inlet and drain assembly communicated with the washing cylinder 2, a second water inlet and drain assembly communicated with the outside, 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 comprises 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 can rotate relatively, and the second part is arranged on the fixing device, so that when the washing cylinder 2 rotates, the first water inlet and drain assembly and the first part of the adapter can rotate together with the washing cylinder 2, and the second water inlet and drain assembly is communicated with the outside 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 connected in sequence, wherein the number of the first water pipe 61 may be multiple. Illustratively, the number of the first water pipes 61 is three, and accordingly, the number of the water through openings 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 opening 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 within the shaft 22, and the first water inlet and outlet assembly is in communication with the rotary tee 64 via the passage 221 and the support cylinder 511. Wherein, the inner diameter of the channel 221 is larger than the outer diameter of the supporting cylinder 511, when installing, the supporting cylinder 511 is inserted into the channel 221 of the rotating shaft 22, and the two are connected through the first bearing 24, so that the two can rotate relatively.

As shown in fig. 5, 8 and 9, the washing tub 2 includes a tub body 21, a rotation shaft 22 and a connection member 23, wherein the tub body 21 is used for accommodating articles to be washed and washing water, a laundry input port 211, a water passage port 212, a water collection ring 213 and a water guide groove 214 are formed on the tub body 21, one end of the connection member 23 is connected to a rear end (a right end of the tub body 21 as viewed in fig. 5) of the tub body 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 with the cylinder 21 through the connecting member 23, the driving device drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the cylinder 21 to synchronously rotate 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 cylinder 21, the rotating shaft 22 is fixedly connected to the cylindrical body 231 of the connecting member 23, and a certain gap is provided between the end of the rotating shaft 22 and the rear end of the 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 installation is completed, the water collecting member 62 may be fixed to the cylindrical body 231 of the connecting member 23, the water collecting member 62 is located at the gap between the rotating shaft 22 and the cylindrical body 21, the water dividing port 621 of the water collecting member 62 faces the cylindrical body 21, and the concentration port of the water collecting member 62 faces the passage 221 of the rotating shaft 22, so that the second end of the first water pipe 61 may directly communicate with the corresponding water dividing port 621, the connecting pipe 63 is located inside the passage 221 and the supporting cylinder 511, the concentration port of the water collecting member 62 communicates with the left end of the connecting pipe 63, the rotating tee 64 is fixed to the supporting cylinder 511, the rotating port 641 of the rotating tee 64 extends into the supporting cylinder 511, the right end of the connecting pipe 63 communicates with the rotating port 641, and the connecting pipe 63, the water collecting member 62 and the first water pipe 61 may rotate synchronously with the cylindrical body 21.

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.

Example two

A second embodiment of the drum washing machine according to the present invention will be described in detail with reference to fig. 10.

Similar to the embodiment, the drum washing machine of the embodiment includes a cabinet 1, and a fixing device, a washing drum 2, a driving device, a water inlet and outlet device, and a vibration damping device are disposed in the cabinet 1. The fixing device, the water inlet and outlet device, and the vibration damping device have the same structure as in the first embodiment, and thus are not described in detail herein. The main differences between the drum washing machine of the present embodiment and the drum washing machine of the first embodiment will be described in detail.

As shown in fig. 10, a cabinet 1 of the drum washing machine is provided with a door 11, and the door 11 can open or close a laundry input port 211 formed on a washing tub 2. That is, the washing tub 2 is not provided with a separate door, but the laundry input port 211 of the washing tub 2 is closed by the door 11.

Continuing to refer to fig. 10, the driving device adopts a direct drive motor, the washing drum 2 is directly driven to rotate by the direct drive motor, a stator assembly 71 of the direct drive motor is arranged on the door 11, and a rotor assembly 72 of the direct drive motor is arranged on the washing drum 2. After the direct drive motor is electrified, the washing drum 2 synchronously rotates along with the rotor assembly 72.

With continued reference to fig. 10, the door 11 includes a body 111, an elastic member, and a cylindrical member 112, the cylindrical member 112 can open or close the laundry inlet 211, the cylindrical member 112 is connected to the body 111 through the elastic member, the washing tub 2 is rotatably connected to the cylindrical member 112, and the stator assembly 71 is provided on the body 111. When the washing machine is operated, the washing drum 2 rotates relative to the cylindrical member 112, the cylindrical member 112 is mounted on the body 111 of the door 11 and does not rotate along with the washing drum 2, and the cylindrical member 112 is connected with the body 111 through an elastic component, so that the washing drum 2 can be adapted to the shaking and the damping effect can be achieved.

With continued reference to fig. 10, the portion of the cylindrical member 112 rotatably connected to the washing tub 2 (the right half of the cylindrical member 112 as viewed in the drawing) is provided in a cone shape. The washing tub 2 is provided with a bearing, denoted as a second bearing 25, and an inner ring of the second bearing 25 is tapered and fitted to the cylindrical member 112. During the rotation of the washing tub 2, the outer race of the second bearing 25 rotates with the washing tub 2, and the inner race of the second bearing 25 is supported on the cylindrical member 112 without rotating with the washing tub 2.

With continued reference to fig. 10, the tub body 21 of the washing tub 2 is provided with an annular protrusion 215, the second bearing 25 is provided on an inner circumferential surface of the annular protrusion 215, and the rotor assembly 72 is provided on an outer circumferential surface of the annular protrusion 215. Illustratively, the annular protrusion 215 has a snap groove formed on both the inner and outer annular surfaces, and the second bearing 25 and the rotor assembly 72 are snapped into the corresponding snap grooves.

With continued reference to fig. 10, the spring assembly includes a first spring assembly disposed axially of the tubular member 112 and a second spring assembly disposed radially of the tubular member 112. The cylindrical member 112 includes a flange section 1121, a cylindrical section 1122 and a conical section 1123 which are connected in sequence, the flange section 1121 is connected with the body 111 of the door 11 through a first elastic component, the cylindrical section 1122 is connected with the body 111 of the door 11 through a second elastic component, and the washing drum 2 is rotatably connected with the conical section 1123.

The first elastic assembly comprises a plurality of first springs 113, each first spring 113 extends along the axial direction of the cylindrical member 112, a plurality of first blind holes 11211 are formed on the flange section 1121, the plurality of first blind holes 11211 are uniformly distributed along the circumferential direction of the flange section 1121, a plurality of second blind holes 1111 are formed on the body 111 of the door 11, the second blind holes 1111 are arranged in a one-to-one correspondence with the first blind holes 11211, and two ends of each first spring 113 are respectively connected with the first blind holes 11211 and the second blind holes 1111.

The second elastic assembly comprises a plurality of elastic units, each elastic unit comprises a second spring 114 and a screw 115, the second spring 114 is sleeved on the screw 115, the second spring 114 extends along the radial direction of the cylindrical member 112, a plurality of threaded through holes 11221 are formed in the cylindrical wall of the cylindrical section 1122, the plurality of threaded through holes 11221 are uniformly distributed along the circumferential direction of the cylindrical section 1122, a plurality of third blind holes 1112 are formed in the body 111 of the door 11, and the third blind holes 1112 and the threaded through holes 11221 are in one-to-one correspondence.

The threaded through hole 11221 includes two sections in the axial direction thereof, one of which has a larger diameter for accommodating the second spring 114 and the other of which has a smaller diameter, and has an internal thread formed on the hole wall thereof to match the external thread of the screw 115.

As shown in fig. 11, the third blind hole 1112 also includes two sections along the axial direction thereof, which are denoted as a first hole section 11121 and a second hole section 11122, the cross section of the first hole section 11121 is circular, the diameter of the first hole section 11121 is slightly larger than the outer diameter of the second spring 114 for accommodating the second spring 114, the cross section of the second hole section 11122 is oblong, the distance between the two long sides is slightly larger than the outer diameter of the screw 115, in the mounted state, the two ends of the second spring 114 are respectively located in the threaded through hole 11221 and the first hole section of the third blind hole 1112, one end of the screw 115 is fixedly connected with the cylinder section 1122 through the threaded through hole 11221, the other end of the screw 115 is inserted into the second hole section 11122 of the third blind hole 1112, but has a certain distance from the bottom of the second hole section 11122, so as to allow a certain amount of movement of the cylindrical member 112 along the radial direction of the cylindrical member 112 relative to the body 111 of the machine door 11, and, since the cross section of the second hole segment 11122 is oblong, it also allows the cylindrical member 112 to move a certain amount in the axial direction of the cylindrical member 112 with respect to the body 111 of the door 11, so that the cylindrical member 112 can better accommodate the shaking of the washing tub 2, and further, the cylindrical member 112 can be restricted from rotating axially.

Continuing to refer to fig. 10, the door 11 further includes an outer transparent window 116 and an inner transparent window 117, the outer transparent window 116 and the inner transparent window 117 are oppositely disposed, the outer transparent window 116 is installed on the body 111 of the door 11, the inner transparent window 117 is embedded into the cylindrical member 112, a circle of elastic waterproof skirt 118 is disposed along the circumference of the inner transparent window 117, and when the door 11 is in a closed state, the elastic waterproof skirt 118 is attached to the inner wall of the washing drum 2 to prevent the water in the washing drum 2 from coming out. The clothes putting-in opening 211 of the washing drum 2 is also sleeved with a window pad 26, the section of the window pad 26 is H-shaped, and the elastic waterproof skirt 118 is matched with the window pad 26, so that the waterproof effect is better.

Preferably, as shown in fig. 12, the tub body 21 of the washing tub 2 is disposed obliquely upward in a direction toward the front end thereof along the rear end thereof. The washing drum 2 is arranged to be inclined, so that the front end of the washing drum 2 is tilted, and thus, water in the washing drum 2 is concentrated at the rear end of the washing drum 2, and the water in the washing drum 2 is prevented from overflowing from the front end.

Finally, it should be noted that, as shown in fig. 12, the increase in thickness of the door 11 does not increase the overall size of the washing machine.

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.

Claims (10)

1. A drum washing machine, comprising a cabinet, characterized in that it further comprises:

a fixing device disposed within the case;

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

a water inlet and drain device communicated with the second end of the washing drum so as to supply water into the washing drum or drain the water in the washing drum; and

the direct-drive motor can drive the washing drum to rotate;

the clothes washing machine comprises a box body, a clothes input opening, a direct-drive motor, a stator assembly and a rotor assembly, wherein a machine door is arranged on one side of the box body and can open or close the clothes input opening, the stator assembly of the direct-drive motor is arranged on the machine door, and the rotor assembly of the direct-drive motor is arranged on the washing drum.

2. A drum washing machine according to claim 1, characterized in that the door comprises a body, an elastic assembly and a cylindrical member capable of opening or closing the laundry input opening, the cylindrical member is connected with the body through the elastic assembly, the washing tub is rotatably connected with the cylindrical member, and the stator assembly is provided on the body.

3. A drum washing machine according to claim 2, characterized in that the part of the cylindrical member rotationally connected with the washing drum is provided in a cone shape.

4. A drum washing machine according to claim 3, characterized in that the washing drum is provided with a bearing, the inner ring of which is tapered and fits the cylindrical member.

5. A drum washing machine according to claim 4, characterized in that the washing drum is provided with an annular protrusion, the bearing is arranged on the inner annular surface of the annular protrusion, and the rotor assembly is arranged on the outer annular surface of the annular protrusion.

6. A drum washing machine according to claim 2, characterized in that the elastic assembly comprises a first elastic assembly and a second elastic assembly, the first elastic assembly being disposed along the axial direction of the cylindrical member, the second elastic assembly being disposed along the radial direction of the cylindrical member.

7. A drum washing machine according to claim 6, characterized in that the cylindrical member comprises a flange section, a cylinder section and a cone section which are connected in sequence, the flange section is connected with the body of the machine door through the first elastic component, the cylinder section is connected with the body of the machine door through the second elastic component, and the washing drum is rotatably connected with the cone section.

8. A drum washing machine according to claim 2, characterized in that the door further comprises an inner transparent window, the inner transparent window is embedded in the cylindrical member, a circle of elastic waterproof skirt is arranged along the circumference of the inner transparent window, and when the door is in a closed state, the elastic waterproof skirt is attached to the inner wall of the washing drum.

9. A drum washing machine as claimed in claim 1 wherein the water inlet and drain device comprises a first water inlet and drain assembly, an adaptor and a second water inlet and drain assembly in communication with each other in sequence, the first water inlet and drain assembly is in communication with the second end of the washing drum, the second water inlet and drain assembly is in communication with the outside, the adaptor is mounted on the fixing device, and the first water inlet and drain assembly and the part of the adaptor connected with the first water inlet and drain assembly can rotate with the washing drum.

10. A drum washing machine according to any one of claims 1 to 9, characterized in that the washing drum is disposed obliquely upward along its second end toward its first end.

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