CN215289348U - Drum washing machine - Google Patents

Abstract

The utility model belongs to the technical field of washing equipment, aim at solving the inconvenient problem of current drum type washing machine clearance. Therefore, the utility model provides a drum type washing machine, this washing machine includes: a box body; the fixing device is arranged in the box body; the metal cylinder is rotatably arranged in the fixing device, a clothes feeding opening is formed at the first end of the metal cylinder, and a water passing structure is arranged at the second end of the metal cylinder; the water inlet and outlet device is communicated with the water passing structure; and the electromagnetic heating device is arranged on the fixing device and can heat the metal cylinder so as to improve the temperature of the washing water in the metal cylinder. By eliminating the outer cylinder of the washing machine, only one metal cylinder is reserved for containing articles to be washed and washing water, so that the metal cylinder is convenient to clean only in the metal cylinder. In addition, can directly heat the metal cylinder through electromagnetic heating device to improve the temperature of the washing water in the metal cylinder, heating efficiency is high, and is simple and convenient.

Description

Drum washing machine

Technical Field

The utility model belongs to the technical field of washing equipment, specifically provide a drum type 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.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, be the inconvenient problem of the current drum type washing machine clearance of understanding promptly, the utility model provides a drum type washing machine, the power distribution box comprises a box body, drum type washing machine still includes: a fixing device disposed within the case; the metal drum is rotatably arranged in the fixing device and used for containing articles to be washed and washing water, a clothes throwing opening is formed at the first end of the metal drum, and a water passing structure is arranged at the second end of the metal drum; a water inlet and outlet device communicated with the water passing structure so as to supply water into the metal cylinder or discharge the water in the metal cylinder; and an electromagnetic heating device disposed on the fixing device, the electromagnetic heating device being capable of heating the metal cylinder to raise the temperature of the washing water in the metal cylinder.

In a preferred technical solution of the above drum washing machine, the electromagnetic heating device includes an electromagnetic heating member, a driving member, and a transmission assembly for connecting the electromagnetic heating member and the driving member, the driving member is mounted on the fixing device, and the driving member can drive the transmission assembly to move, and thus drive the electromagnetic heating member to reciprocate along the axial direction of the metal cylinder.

In a preferred technical solution of the above drum washing machine, the driving member is a motor, the transmission assembly includes a screw rod and a nut that are screwed together, the screw rod is connected with an output shaft of the motor, and the nut is connected with the electromagnetic heating member.

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

In a preferred technical solution of the above drum washing machine, the first guide member includes two support plates disposed oppositely, the two support plates are provided with guide grooves extending along a length direction of the metal cylinder, the second guide member includes a guide rod and a connecting rod for connecting the guide rod and the electromagnetic heating member, two ends of the guide rod are respectively located in the guide grooves disposed on the two support plates, and the guide rod is adapted to the guide grooves.

In a preferred technical solution of the above drum washing machine, the number of the guide rods and the number of the connecting rods are two, the guide rods are connected with the electromagnetic heating member through the corresponding connecting rods, and the two guide rods are arranged in front and back along the length direction of the metal cylinder.

In a preferred embodiment of the drum washing machine, an inner diameter of the first end of the metal cylinder is smaller than an inner diameter of the second end of the metal cylinder, and the guide groove is inclined downward in a direction from the first end of the metal cylinder to the second end of the metal cylinder, so that a distance between the electromagnetic heating member and an outer cylinder wall of the metal cylinder is kept constant during the reciprocating movement of the electromagnetic heating member.

In a preferred technical solution of the drum washing machine, 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, the first water inlet and drain assembly is communicated with the water passing structure, the second water inlet and drain assembly is communicated with the outside, the adaptor is mounted on the fixing device, and the first water inlet and drain assembly and a part of the adaptor connected with the first water inlet and drain assembly can rotate along with the metal cylinder.

In the preferred technical scheme of the drum washing machine, the number of the water passing structures is multiple and is distributed along the circumferential direction of the metal cylinder, the first water inlet and outlet assembly comprises a first water pipe and a water collecting part, the number of the first water pipe is multiple, one end of the water collecting part is provided with a plurality of water dividing ports, the other end of the water collecting part is provided with a centralized port, the water dividing ports are communicated with the centralized port, the first end of the first water pipe is communicated with the water passing structures correspondingly, the second end of the first water pipe is communicated with the water dividing ports correspondingly, and the centralized port is communicated with the adaptor.

In the preferable technical scheme of the drum washing machine, the adaptor is a rotary tee joint, the rotary tee joint comprises a rotary port and two fixed ports, the second water inlet and drainage component comprises a water inlet pipe and a water drainage pipe, the rotary port is communicated with the first water inlet and drainage component, one of the two fixed ports is communicated with the water inlet pipe, and the other of the two fixed ports is communicated with the water drainage pipe.

As can be understood by those skilled in the art, in the preferred embodiment of the present invention, the drum washing machine has no outer tub, but only one metal tub for accommodating the articles to be washed and the washing water, and therefore, it is very convenient to wash only the inside of the metal tub. And, compare with the washing machine that the patent publication of publication number CN206266882U, the utility model discloses a washing machine puts in the clothing opening at the front end of metal cylinder, at first, no matter the metal cylinder stops in any position, the tube door on the metal cylinder all is aimed at with the opening on the box, the unable condition of opening of tube door can not appear, secondly, adopts open-front, accords with most user's use habit very much to, washing machine can adopt embedded placing, saves space. In addition, the washing machine is also provided with an electromagnetic heating device which can directly heat the metal cylinder so as to improve the temperature of the washing water in the metal cylinder, and the heating efficiency is high.

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

Further, the electromagnetic heating device also comprises a first guide member arranged on the fixing device and a second guide member arranged on the electromagnetic heating member, and the first guide member and the second guide member are matched with each other to prevent the electromagnetic heating member from shaking left and right in the reciprocating movement process. Through such setting, can improve the stationarity of electromagnetic heating component in reciprocating motion process, be favorable to improving heating efficiency.

Further, the guide groove is inclined downward in a direction from the first end of the metal cylinder toward the second end of the metal cylinder so as to keep a distance between the electromagnetic heating member and the outer cylinder wall of the metal cylinder constant during the reciprocating movement. Through such setting, can ensure the heating efficiency to the metal cylinder.

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 water passing structure, 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 metal cylinder.

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

Compare with the washing machine that the patent publication is CN206266882U in the washing machine of the utility model discloses an in the metal cylinder rotates, first water inlet and outlet subassembly can rotate along with the metal cylinder is synchronous, so, only need set up a water service mouth on the metal cylinder, make first water inlet and outlet subassembly with this water service mouth intercommunication can, first water inlet and outlet subassembly need not to stretch into the inside of metal cylinder, neither can leak, clothing and the water pipe in the metal cylinder also can not bump.

Furtherly, the quantity of logical water structure is a plurality of and along the circumference distribution of a metal section of thick bamboo, and first water intaking and drainage subassembly includes first water pipe and water collection piece, and the quantity of first water pipe is a plurality of, and the one end of water collection piece is provided with a plurality of distributive mouths, and the other end of water collection piece is provided with concentrated mouth, a plurality of distributive mouths all with concentrate mouthful intercommunication, the first end of first water pipe and the logical water structure intercommunication that corresponds, the second end of first water pipe and the distributive mouth intercommunication that corresponds, concentrate mouthful and adaptor intercommunication. 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.

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 the fixing device of the drum washing machine of 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 a schematic view of the assembly of the first water pipe and the water collecting member of the drum washing machine of the present invention;

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

fig. 8 is an assembly view of the rotating shaft, the tubular structure and the adaptor of the drum washing machine of the present invention;

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

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

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

List of reference numerals:

1. a box body; 2. a washing drum; 21. a metal cylinder; 22. a rotating shaft; 23. a connecting member; 24. a bearing; 211. a laundry input port; 212. a water inlet; 213. a water collecting ring; 214. a water guide groove; 215. an annular neck; 221. a channel; 231. a cylindrical body; 232. a connecting arm; 2321. A strip; 2322. a reinforcement; 31. a first motor; 32. a belt; 33. a belt pulley; 41. A suspension spring; 42. a damper; 51. a main frame; 52. a roller; 511. a tubular structure; 512. a cross beam; 513. an upper containment zone; 514. a lower containment zone; 61. a first water pipe; 62. a water collection member; 63. A connecting pipe; 64. rotating the tee; 65. a water inlet pipe; 66. a drain pipe; 67. draining pump; 621. A water diversion port; 641. a rotation port; 642. a fixed port; 71. communicating the chambers; 72. an accommodating chamber; 73. a spherical structure; 81. an electromagnetic heating member; 82. a second motor; 83. a lead screw; 84. a nut; 85. a support plate; 86. a guide bar; 87. a connecting rod; 88. a plate-like member; 89. a rod-like member; 851. a guide groove.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the following embodiments are only for explaining the technical principle 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", "back", "top", "bottom", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, 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 include, for example, a fixed connection, a detachable connection, or an integral connection; 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 meaning 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, 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.

As shown in fig. 1 to 3, the drum washing machine of the present invention includes a casing 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 casing 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 includes a first motor 31, a belt 32 and a belt pulley 33, wherein the belt pulley 33 is fixedly connected with the rotating shaft 22, one end of the belt 32 is connected with an output shaft of the first motor 31, a small belt pulley is generally installed on the output shaft of the first motor 31, one end of the belt 32 is connected with the small belt pulley, the other end of the belt 32 is connected with the belt pulley 33 installed on the rotating shaft 22, and the first motor 31 drives the belt pulley 33 and the rotating shaft 22 to rotate through the belt 32.

It should be noted that the driving device is not limited to the above specific examples, for example, a direct drive motor may be used to drive, a stator device of the direct drive motor may be installed on the fixing device, and a rotor of the direct drive motor is installed on the rotating shaft 22, and this adjustment and change to the specific structural form of the driving device do not deviate 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. 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 to 3 and with further reference to fig. 4, fig. 4 is a schematic structural diagram of a fixing device of a drum washing machine according to 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, and the shaft 22 is rotatably connected to the support structure. 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 inwardly convex strip-shaped convex ribs can be formed on the inner wall of the washing drum 2 along the radial direction of the washing drum 2, so that a water guide structure can be formed between two adjacent strip-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, 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 then to fig. 6 to 8, fig. 6 is a schematic view illustrating the assembly of the first water pipe and the water collecting member of the drum washing machine of the present invention; FIG. 7 is a schematic structural view of the water collecting member of the drum washing machine of the present invention; fig. 8 is an assembly diagram of the rotating shaft, the tubular 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 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 application, a person skilled in the art can cancel the connecting pipe 63 as required to directly connect the water collecting member 62 and the rotating tee 64, and the flexible adjustment and change do not deviate from the principle and scope of the present invention, which 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 further reference to fig. 9, fig. 9 is a schematic structural diagram of the connecting member of the drum washing machine according to the present invention.

As shown in fig. 5, 8 and 9, the washing tub 2 includes a metal tub 21, a rotation shaft 22 and a connection member 23, wherein the metal tub 21 is used for accommodating articles to be washed and washing water, a laundry input port 211, a water through port 212, a water collection ring 213, a water guide groove 214 and a ring slot 215 are formed on the metal tub 21, one end of the connection member 23 is connected to a rear end (a right end of the metal tub 21 as viewed in fig. 5) of the metal tub 21, and the other end of the connection member 23 is connected to the rotation shaft 22. That is, the rotating shaft 22 is fixedly connected to the metal tube 21 through the connecting member 23, the driving device drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the metal tube 21 to rotate synchronously through the connecting member 23.

The connecting member 23 includes a cylindrical body 231 and connecting arms 232 connected with each other, wherein the number of the connecting arms 232 is plural, illustratively, the number of the connecting arms 232 is three, three connecting arms 232 are arranged along the circumferential direction of the cylindrical body 231, preferably, evenly 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 provided, 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 to the rear end of the metal 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 metal cylinder 21, through which the second end of the first water pipe 61 can enter the passage 221 of the rotating shaft 22.

Specifically, in the mounted state, the water collector 62 may be fixed to the cylindrical body 231 of the connecting member 23, with the water collector 62 being located at the gap between the rotating shaft 22 and the metal cylinder 21, and the water diversion port 621 of the water collection member 62 faces the metal cylinder 21, the concentration port of the water collection member 62 faces the channel 221 of the rotating shaft 22, in this way, the second end of the first water pipe 61 can be directly connected to the corresponding water diversion port 621, the connection pipe 63 is located inside the passage 221 and the tubular structure 511, the concentration port of the water collection member 62 is connected to the left end of the connection pipe 63, the rotary tee 64 is fixed to the tubular structure 511, the rotating port 641 of the rotating tee 64 is inserted into the cylindrical structure 511, the right end of the connecting pipe 63 is communicated with the rotating port 641, and the rotating port 641 of the rotating tee 64, the connecting pipe 63, the water collecting member 62 and the first water pipe 61 can rotate synchronously with the metal cylinder 21. Of course, it is also possible to fixedly connect the water collecting member 62 to the rotation shaft 22 and to install the water collecting member 62 in the passage 221 of the rotation shaft 22.

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

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

Preferably, the drum washing machine of the present invention further comprises an air leakage preventing device, wherein when the washing drum 2 is in a rotating state, the air leakage preventing device can keep the water opening 212 and the corresponding first water pipe 61 in a communicating state, and when the washing drum 2 is in a static state, the air leakage preventing device can keep the water opening 212 which is not immersed in water and the corresponding first water pipe 61 in an interrupting 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 rotates, the spherical structure 73 is always located in the accommodating chamber 72 by the centrifugal force, and in this case, the water passage opening 212 is in communication with the corresponding communication chamber 71 and the first water pipe 61. When the washing drum 2 stops rotating, two air leakage prevention units are positioned at the upper part, and one air leakage prevention unit is positioned at the bottom end. The spherical structure 73 of the air leakage prevention unit at the bottom end is positioned in the accommodating chamber 72 under the action of self gravity, and the water through port 212 at the bottom end (the water through port 212 is immersed in water) 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.

Next, referring to fig. 10 and 11, wherein fig. 10 is a first schematic view of an assembly of a washing drum and an electromagnetic heating device of the drum washing machine of the present invention; fig. 11 is a second schematic view of the assembly of the washing drum and the electromagnetic heating device of the drum washing machine of the present invention.

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

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

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

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

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

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

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

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

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

Of course, the lead screw 83 may be inclined so that the lead screw 83 is inclined in the same direction as the guide groove 851.

So far, the technical solution of the present invention has been described with reference to 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. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present 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 metal drum is rotatably arranged in the fixing device and used for containing articles to be washed and washing water, a clothes throwing opening is formed at the first end of the metal drum, and a water passing structure is arranged at the second end of the metal drum;

a water inlet and outlet device communicated with the water passing structure so as to supply water into the metal cylinder or discharge the water in the metal cylinder; and

and the electromagnetic heating device is arranged on the fixing device and can heat the metal cylinder so as to improve the temperature of the washing water in the metal cylinder.

2. A drum washing machine according to claim 1, characterized in that the electromagnetic heating device comprises an electromagnetic heating member, a driving member and a transmission assembly for connecting the electromagnetic heating member and the driving member, the driving member is mounted on the fixing device, the driving member can drive the transmission assembly to move, and thus drive the electromagnetic heating member to reciprocate along the axial direction of the metal cylinder.

3. A drum washing machine according to claim 2, characterized in that the driving member is a motor, the transmission assembly comprises a screw rod and a nut which are in threaded fit, the screw rod is connected with an output shaft of the motor, and the nut is connected with the electromagnetic heating member.

4. A drum washing machine according to claim 2, characterized in that the electromagnetic heating device further comprises a first guide member provided on the fixing device and a second guide member provided on the electromagnetic heating member, and the first guide member and the second guide member cooperate with each other to prevent the electromagnetic heating member from shaking left and right during the reciprocating movement.

5. A drum washing machine according to claim 4, characterized in that the first guide member comprises two support plates arranged oppositely, the two support plates are provided with guide grooves extending along the length direction of the metal cylinder, the second guide member comprises a guide rod and a connecting rod for connecting the guide rod and the electromagnetic heating member, two ends of the guide rod are respectively positioned in the guide grooves arranged on the two support plates, and the guide rod is matched with the guide grooves.

6. A drum washing machine according to claim 5, characterized in that the number of the guide rods and the connecting rods is two, the guide rods are connected with the electromagnetic heating member through the corresponding connecting rods, and the two guide rods are arranged in the front and rear direction along the length direction of the metal drum.

7. A drum washing machine according to claim 6, characterized in that the inner diameter of the first end of the metal drum is smaller than that of the second end of the metal drum, and the guide groove is inclined downward in a direction toward the second end of the metal drum along the first end of the metal drum so as to keep the distance between the electromagnetic heating member and the outer drum wall of the metal drum constant during the reciprocating movement.

8. A drum washing machine as claimed in claim 1 wherein the water inlet and outlet means comprises a first water inlet and outlet assembly, an adaptor and a second water inlet and outlet assembly in communication with each other in sequence, the first water inlet and outlet assembly is in communication with the water passing structure, the second water inlet and outlet assembly is in communication with the outside, the adaptor is mounted on the fixing means, and the first water inlet and outlet assembly and the part of the adaptor connected to the first water inlet and outlet assembly are rotatable with the metal drum.

9. A drum washing machine as claimed in claim 8 wherein the number of the water passing structures is multiple and distributed along the circumference of the metal drum, the first water intake and drainage assembly comprises a first water pipe and a water collecting member, the number of the first water pipe is multiple, 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 first end of the first water pipe is communicated with the corresponding water passing structure, the second end of the first water pipe is communicated with the corresponding water dividing port, and the concentration port is communicated with the adaptor.

10. A drum washing machine according to claim 8, characterized in that the adaptor is a swivel tee comprising a swivel port and two fixed ports, the second water inlet and outlet assembly comprises a water inlet pipe and a water outlet pipe, the swivel port is communicated with the first water inlet and outlet assembly, one of the two fixed ports is communicated with the water inlet pipe, and the other of the two fixed ports is communicated with the water outlet pipe.

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