CN114438705A - 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; the fixing device is arranged in the box body; a washing drum rotatably disposed in the fixing device for accommodating articles to be washed and washing water, a laundry input port being formed at a first end of the washing drum; the driving device is in driving connection with the second end of the washing drum; a water inlet and outlet device which is communicated with the second end of the washing cylinder so as to supply water into the washing cylinder or discharge the water in the washing cylinder; and a vibration damping device disposed between the fixing device and the case. Through the arrangement, the outer drum is eliminated, and only one washing drum is reserved, so that the washing drum is very convenient to clean only the inside of 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; the one end of drain pipe stretches into the washing intracavity and the other end stretches out outside the washing chamber, and at least partly vertical decurrent orientation of edge of the one end of drain pipe is extended, and the lower extreme of drain pipe is formed with a plurality of water holes of crossing. 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 situation that the door body cannot be aligned with the opening on the box body is easy to occur even though the positioning device is installed, which causes the door body not to be opened smoothly, and 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; a washing drum rotatably disposed in the fixing device for accommodating articles to be washed and washing water, a laundry input port being formed at a first end of the washing drum; the driving device is in driving connection with the second 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 a vibration damping device provided between the fixing device and the case.

In a preferred embodiment of the above drum washing machine, the fixing device includes a main frame, the second end of the washing drum has a rotating shaft, and the rotating shaft is rotatably connected to one end of the main frame.

In a preferred embodiment of the above drum washing machine, the fixing device further includes a plurality of rollers disposed on the main frame, and the plurality of rollers abut against the outer wall of the washing tub when the washing tub is mounted.

In the above preferred technical solution of the drum washing machine, a passage is provided in the rotation shaft, and the water inlet and outlet device is communicated with the second end of the washing drum by means of the passage.

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, a first end of the first water inlet and drain assembly is communicated with a second end of the washing drum, the second end of the first water inlet and drain assembly is communicated with the adapter through the channel, the second water inlet and drain assembly is communicated with the outside, the adapter is installed on the main frame, and the first water inlet and drain assembly and a part of the adapter connected with the first water inlet and drain assembly can rotate along with the washing drum.

In a preferred technical solution of the above drum washing machine, a plurality of water passing structures are provided along a circumferential direction of the washing drum, the first water inlet and outlet assembly includes a plurality of first water pipes, a first end of each first water pipe is communicated with the corresponding water passing structure, and a second end of each first water pipe is communicated with the adaptor through the channel.

In the preferred technical scheme of the drum washing machine, the first water inlet and outlet assembly further comprises a water collecting part, one end of the water collecting part is provided with a plurality of water distributing openings, the other end of the water collecting part is provided with a centralized opening, the water distributing openings are communicated with the centralized opening, the second end of the first water pipe is communicated with the corresponding water distributing openings, and the centralized opening is communicated with the adapter through the channel.

In a preferred embodiment of the above drum washing machine, the water passage structure is a water passage opening formed at a boundary between the rear wall of the washing tub and the inner tub wall.

In the preferable technical scheme of the drum washing machine, the driving device comprises a motor, a belt and a belt pulley, the belt pulley is fixedly connected with the rotating shaft, one end of the belt is connected with an output shaft of the motor, and the other end of the belt is connected with the belt pulley.

In a preferred embodiment of the above drum washing machine, the vibration damping device includes a suspension spring and a damper, and the top and the bottom of the fixing device are connected to the cabinet through the suspension spring and the damper, respectively.

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. In addition, 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 input opening at the front end of the washing drum, firstly, no matter the washing drum stops at any position, the drum door on the washing drum is aligned with the opening on the box body, and the situation that the drum door cannot be opened does not occur, 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.

Further, the fixing device includes a main frame, and the washing tub is installed in the main frame. By such an arrangement, a part of the washing tub can be extended to the outside of the main frame by installing the washing tub in the main frame, so that the size of the washing tub can be enlarged as much as possible, thereby improving the washing capacity of the washing machine.

Furthermore, a plurality of rollers are arranged on the main frame, and the rollers are abutted against the outer cylinder wall of the washing cylinder under the condition of being installed. Through the arrangement, the front end of the washing drum is supported by the rollers, so that the pressure of the rear end of the washing drum on the rotating shaft can be greatly reduced, and the design difficulty and the processing cost of the rotating shaft are reduced.

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 end of the first water inlet and drainage assembly is communicated with the second end of the washing cylinder, the second end of the first water inlet and drainage assembly is communicated with the adapter through a channel, the second water inlet and drainage assembly is communicated with the outside, the adapter is installed on the main frame, 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, be provided with a plurality of structures of leading to water along the circumference of washing a section of thick bamboo, first water intaking and drainage subassembly includes first water pipe and water collecting part, and the quantity of first water pipe is a plurality of, and water collecting part's one end is provided with the distributive opening, and the other end is provided with concentrated mouth, and the quantity of distributive opening also is a plurality of, the first end and the logical water structure intercommunication that correspond of first water pipe, the second end and the distributive opening intercommunication that corresponds of first water pipe. Through such setting, when the drainage, can be through a plurality of first water pipes simultaneous drainage, likewise, when intaking, can intake simultaneously through a plurality of first water pipes, can greatly promote washing machine's the drainage ability of intaking, reduce the washing time.

Further, the water passing structure is a water passing opening formed at the junction of the rear wall of the washing drum and the inner drum wall. Through the arrangement, the water in the washing drum can be drained more conveniently.

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 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 device of the drum washing machine of the present invention.

List of reference numerals:

1. a box body; 2. a washing drum; 21. a barrel; 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; 214. a water guide groove; 215. an annular neck; 216. a limiting structure; 221. a channel; 231. a cylindrical body; 232. a connecting arm; 2321. a strip; 2322. a reinforcement; 31. a 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 iron member; 82. an electromagnetic member; 83. a steel cord.

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," "second," and the like 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 for containing articles to be washed and 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, through which a user can input laundry to be washed into the washing tub 2, and can take out the washed laundry from the washing tub 2 through the laundry input opening 211.

With continued reference to fig. 1 to 3, the washing drum 2 is rotatably disposed in the fixing device, the driving device is drivingly connected to the 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 comprises a 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 motor 31, a small belt pulley is generally installed on the output shaft of the 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 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. By mounting the washing tub 2 in the main frame 51, a part of the washing tub 2 can be extended to the outside of the main frame 51 (as shown in fig. 2 and 3), and thus the size of the washing tub 2 can be enlarged as much as possible, and the washing capacity of the washing machine can be increased without changing the outer shape.

With continued reference to fig. 4, a support structure is provided at the rear end of the main frame 51, to which the shaft 22 is rotatably connected. Wherein the support structure is a cylindrical structure 511. The rotation shaft 22 may be inserted into the cylindrical structure 511 and coupled by a bearing so that the rotation shaft 22 may rotate relative to the 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 accommodating sections, which are vertically disposed, denoted as an upper accommodating section 513 and a lower accommodating section 514, wherein the washing drum 2 is located in the upper accommodating section 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.

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.

Continuing to refer to fig. 5, a plurality of water guiding structures are further disposed on the inner wall of the washing drum 2, the water guiding structures extend along the axial direction of the washing drum 2, and the rear end (the right end of the water guiding structure viewed from fig. 5) of the water guiding structures is communicated with the water collecting ring 213. The water guide structure is arranged on the inner cylinder wall of the washing cylinder 2, so that the water in the washing cylinder 2 can be favorably collected to the water collecting ring 213, and particularly, when the washing cylinder 2 rotates, for example, when the washing machine executes a dehydration program, the water on the inner cylinder wall can be directly collected to the water collecting ring 213 quickly along the water guide structure without being blocked by clothes, so that the dehydration capacity of the washing machine can be greatly improved.

With continued reference to fig. 5, the water directing structure is a water directing groove 214 formed in the inner cylindrical wall. That is, the water guide structure is a strip-shaped groove-shaped structure which is arranged on the inner wall of the washing drum 2 and protrudes outwards along the radial direction of the washing drum 2. Of course, a plurality of inward convex bar-shaped convex ribs can be formed on the inner wall of the washing drum 2 along the radial direction of the washing drum 2, and thus, a water guide structure can be formed between two adjacent bar-shaped convex ribs. Preferably, a mode that the water guide grooves 214 are combined with the strip-shaped ribs can be adopted, and the two structures are arranged at intervals, so that the drainage efficiency can be further improved.

With continued reference to fig. 5, it can be seen that some water guiding grooves 214 have longer lengths, some water guiding grooves 214 have shorter lengths, and two water guiding grooves 214 with different lengths are arranged at intervals, that is, the lengths of two adjacent water guiding grooves 214 are different. Because the rear ends of the water guiding grooves 214 are all required to be communicated with the water collecting ring 213, the length of the water guiding grooves 214 with longer lengths extending to the front end of the washing drum 2 is greater than the length of the water guiding grooves 214 with shorter lengths extending to the front end of the washing drum 2, and the washing drum 2 is divided into a front section, a middle section and a rear section along the axial direction of the washing drum 2, as can be seen from fig. 5, the water guiding grooves 214 located at the front section of the washing drum 2 are relatively sparse, and the water guiding grooves 214 located at the middle section and the rear section of the washing drum 2 are relatively dense, so that the processing cost is reduced as much as possible on the basis of ensuring that the drainage requirement of the washing machine is met through the water guiding grooves 214 with different lengths.

With continued reference to fig. 5, the inner diameter of the front end of the tub 2 is smaller than the inner diameter of the rear end of the tub 2. With this arrangement, the water in the washing tub 2 can be more easily flowed to the water passage opening 212.

Continuing to refer to fig. 5, the washing drum 2 has a drum door (not shown), the front end of the washing drum 2 is provided with a fixing structure protruding outwards, and the drum door (not shown) is mounted on the fixing structure. Wherein, the fixed structure is a ring-shaped clamping groove 215 formed on the washing drum 2, and the drum door is clamped and fixed with the ring-shaped clamping groove 215.

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 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 cylinder 2, that is, the first water inlet and drain assembly does not need to extend into the washing cylinder 2, the second water inlet and drain assembly is communicated with the outside, and the adaptor is mounted on a cylindrical structure 511 arranged 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 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 accordingly, the number of the water through holes is also 3, the three water through holes 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 hole 212, one end of the water collecting member 62 is provided with three water dividing holes 621, the number of the water dividing holes 621 is three, the second end of the first water pipe 61 is communicated with the corresponding water dividing holes 621, the other end of the water collecting member 62 is provided with a concentration hole (not shown), the water dividing holes 621 are all communicated with the concentration hole, and the concentration hole of the water collecting member 62 is communicated with the rotation hole 641 of the rotation 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 can be larger than the outer diameter of the cylindrical structure 511, in this case, when installing, the cylindrical structure 511 is inserted into the channel 221 of the rotating shaft 22; conversely, the inner diameter of the cylindrical structure 511 may be larger than the outer diameter of the rotating shaft 22, and in this case, the rotating shaft 22 may be inserted into the cylindrical structure 511. Preferably, the inner diameter of the passage 221 is larger than the outer diameter of the cylindrical structure 511, and when the cylindrical structure 511 is installed, the cylindrical structure 511 is inserted into the passage 221 of the rotating shaft 22, and the two are connected by 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 drum 2 includes a drum body 21, a rotating shaft 22 and a connecting member 23, wherein the drum body 21 is used for accommodating articles to be washed and washing water, a laundry input port 211, a water passing port 212, a water collecting ring 213, a water guide groove 214 and a ring-shaped clamping groove 215 are formed on the drum body 21, one end of the connecting member 23 is connected with the rear end (the right end of the drum body 21 as viewed in fig. 5) of the drum body 21, and the other end of the connecting member 23 is connected with the rotating 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 comprises a cylindrical body 231 and connecting arms 232 which are connected with each other, wherein the number of the connecting arms 232 is a plurality, illustratively three, and 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 can be fixedly connected or can be integrally arranged, when mounting, the rotating shaft 22 can be inserted into the cylindrical body 231, and the two can adopt interference fit or clearance fit, if a clearance fit is used, the shaft 22 and the cylindrical body 231 may be secured circumferentially by a key, illustratively, a first key groove is formed on the inner wall of the cylindrical body 231, a second key groove is formed on the outer wall of the rotating shaft 22, the first key groove and the second key groove are circumferentially fixed by a key, of course, the rotating shaft 22 and the cylindrical body 231 are preferably in an interference fit to improve the connection stability of the two.

With continued reference to fig. 5, 8 and 9, in the installed state, the connecting arm 232 is fixedly connected with the rear end of the cylinder 21, the rotating shaft 22 is fixedly connected with 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 channel 221 of the rotating shaft 22.

Specifically, when the water collecting member 62 is mounted, the water collecting member 62 may be fixed to the cylindrical body 231 of the connecting member 23, the water collecting member 62 may be positioned in the gap between the rotating shaft 22 and the cylindrical body 21, the water dividing port 621 of the water collecting member 62 may be directed toward the cylindrical body 21, and the concentration port of the water collecting member 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 collecting member 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 rotating tee 64 may be inserted 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 collecting member 62, and the first water pipe 61 may be rotated synchronously with the cylindrical body 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. In the mounted state, the first water pipe 61 may be positioned in the gap between the two bars 2321 and the first water pipe 61 is fixedly connected to the reinforcing member 2322, so that the first water pipe 61 can be prevented from being moved.

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 of the drain process can be ensured.

The air leakage preventing means may be three solenoid valves respectively disposed at the corresponding water passage ports 212, and when the washing machine is in a rotating state, the three solenoid valves are all in an on state to maintain the water passage ports 212 in a communicating state with the corresponding first water pipes 61, and when the washing machine is in a stationary state, the solenoid valves at the water passage ports 212 not immersed in water may be closed to maintain the water passage ports 212 in an off state with the corresponding first water pipes 61.

Of course, the air leakage preventing device may be configured in other structures, and a preferred embodiment of the air leakage preventing device will be described in detail with reference to fig. 5.

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 is rotated, the spherical structure 73 is always positioned in the accommodating chamber 72 by the centrifugal force, and in this case, the water passage ports 212 are 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) and the corresponding communication chamber 71 and the first water pipe 61 are kept in a communication state, 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.

In another preferred embodiment, the second leakage preventing member is also a spherical structure 73, but the communication chamber 71 is provided as a tapered chamber, that is, the inner diameter of the communication chamber 71 is gradually increased from one end to the other end, the end with a smaller inner diameter is referred to as a first end, the end with a larger inner diameter is referred to as a second end, the first end is communicated with the first water pipe 61, the diameter of the spherical structure 73 is larger than the inner diameter of the first end but smaller than the inner diameter of the second end, and when the spherical structure 73 moves toward the first water pipe 61, the spherical structure 73 stays at the middle position of the communication chamber 71 due to the gradually decreased inner diameter of the communication chamber 71, indirectly sealing the first water pipe 61.

In another preferred embodiment, the second air leakage prevention member is configured as a frustum structure, that is, the outer diameter of the second air leakage prevention member gradually increases from one end to the other end, the end with a small outer diameter is referred to as a first end, the end with a large outer diameter is referred to as a second end, the first end faces the first water pipe 61, the outer diameter of the first end is smaller than the inner diameter of the first water pipe 61, the outer diameter of the second end is larger than the inner diameter of the first water pipe 61, when the frustum structure moves towards the first water pipe 61, the first end extends into the first water pipe 61, and the second end stays outside the first water pipe 61, so that the first water pipe 61 is sealed.

In another preferred embodiment, the second air leakage prevention member is further configured to be a frustum structure, an outer diameter of the second air leakage prevention member gradually increases from one end to the other end, the end with a small outer diameter is referred to as a first end, the end with a large outer diameter is referred to as a second end, the first end faces the first water pipe 61, the outer diameter of the first end is smaller than the inner diameter of the communication chamber 71, the outer diameter of the second end is larger than the inner diameter of the communication chamber 71, when the frustum structure moves towards the first water pipe 61, the first end extends into the communication chamber 71, and the second end stays outside the communication chamber 71, so that the communication chamber 71 is sealed, and the first water pipe 61 is indirectly sealed.

Referring to fig. 10 and 11, in which, fig. 10 is a first schematic view illustrating an assembly of a washing tub and an electromagnetic device of a 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 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 device including an iron member 81 and an electromagnetic member 82, wherein the iron member 81 is disposed on the washing drum 2, the iron member 81 can be fastened to the washing drum 2 by a wire rope 83, the electromagnetic member 82 is disposed on the fixing device, and the iron member 81 and the electromagnetic member 82 cooperate with each other to stop the washing drum 2 from rotating and stopping at a set position. When the washing drum 2 is rotated, the electromagnetic member 82 is in a power-off state, and when the washing drum 2 needs to be stopped, the electromagnetic member 82 is energized, and an attractive force is generated between the electromagnetic member 82 and the iron member 81, the attractive force is a resistance force with respect to the washing drum 2, and the washing drum 2 is gradually stopped and finally stopped due to the resistance force.

Further, the washing tub 2 can be stopped at a predetermined position by the electromagnetic device, for example, the iron member 81 is disposed at a position corresponding to the water passage opening 212, the electromagnetic member 82 is disposed directly below the washing tub 2, and the water passage opening 212 corresponding to the iron member 81 is positioned at the lowermost portion when the washing tub 2 stops rotating, thereby facilitating drainage.

That is, the electromagnetic device can play both a braking function and a positioning function. The electromagnetic member 82 is fixed in the lower receiving area 514 (see fig. 4) of the main frame 51, that is, the electromagnetic member 82 and the washing drum 2 are both mounted on the main frame 51, so that the distance between the iron member 81 mounted on the washing drum 2 and the electromagnetic member 82 is relatively fixed, which is beneficial to improving the stability of the electromagnetic device.

With continued reference to fig. 11, the surfaces corresponding to the iron member 81 and the electromagnetic member 82 are both provided as arc-shaped surfaces, and by such an arrangement, the positioning accuracy of the electromagnetic device can be improved. The iron component 81 also sets up to the arcwall face towards the one side of washing a tub 2, and the outer cylinder wall looks adaptation of arcwall face and washing a tub 2, so, can improve the iron component 81 and wash a tub 2 be connected the steadiness. An anti-slip member, such as a rubber pad, may be further disposed between the iron member 81 and the washing tub 2 to prevent the iron member 81 and the washing tub 2 from moving relatively.

With continued reference to fig. 10 and 11, the washing drum 2 is provided with a limiting structure 216, and the limiting structure 216 can prevent the iron member 81 from moving toward the front end of the washing drum 2. The washing cylinder 2 is frustum-shaped, the front end of the washing cylinder is small in size, and the iron member 81 can be prevented from sliding towards the front end of the washing cylinder 2 by arranging the limiting structure 216. Wherein, the limiting structure 216 is a convex structure formed on the washing drum 2.

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;

a washing drum rotatably disposed in the fixing device for accommodating articles to be washed and washing water, a laundry input port being formed at a first end of the washing drum;

the driving device is in driving connection with the second 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

and the vibration damping device is arranged between the fixing device and the box body.

2. A drum washing machine according to claim 1, characterized in that the fixing device comprises a main frame, the second end of the washing drum has a rotating shaft, and the rotating shaft is rotatably connected with one end of the main frame.

3. A drum washing machine according to claim 2 characterized in that the fixture further comprises a plurality of rollers provided on the main frame, which rollers, in mounted condition, abut against the outer drum wall of the washing drum.

4. A drum washing machine according to claim 2, characterized in that a passage is provided in the rotating shaft, and the water inlet and outlet device is communicated with the second end of the washing drum through the passage.

5. A drum washing machine as claimed in claim 4 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 in sequence, the first end of the first water inlet and drain assembly is in communication with the second end of the washing drum, the second end of the first water inlet and drain assembly is in communication with the adaptor via the channel, the second water inlet and drain assembly is in communication with the outside, the adaptor is mounted on the main frame, 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.

6. A drum washing machine as claimed in claim 5 wherein a plurality of water passing structures are provided along the circumference of the washing drum, the first water inlet and outlet assembly comprises a plurality of first water pipes, the first ends of the first water pipes are communicated with the corresponding water passing structures, and the second ends of the first water pipes are communicated with the adaptor via the passages.

7. A drum washing machine according to claim 6, characterized in that the first water inlet and outlet assembly further comprises a water collecting member, one end of the water collecting member is provided with a plurality of water dividing ports, the other end of the water collecting member is provided with a concentration port, the water dividing ports are all communicated with the concentration port, the second end of the first water pipe is communicated with the corresponding water dividing port, and the concentration port is communicated with the adapter by means of the channel.

8. A drum washing machine according to claim 6, characterized in that the water passing structure is a water passing port formed at a boundary of the inner wall and the rear wall of the washing tub.

9. A drum washing machine according to claim 2, characterized in that the driving device comprises a motor, a belt and a belt pulley, the belt pulley is fixedly connected with the rotating shaft, one end of the belt is connected with the output shaft of the motor, and the other end of the belt is connected with the belt pulley.

10. A drum washing machine according to any one of claims 1 to 9, characterized in that the vibration damping device comprises a suspension spring and a damper, and the top and bottom of the fixing device are connected with the cabinet through the suspension spring and the damper, respectively.

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