CN216786552U - Drum washing machine - Google Patents

Abstract

The utility model belongs to the technical field of washing equipment, and particularly provides a drum washing machine which comprises a box body, a fixing device, a washing drum, a water inlet and drainage device, a driving device and a counterweight vibration damper. In addition, counter weight vibration damper includes the quality piece, stop member and elastic component, and the columnar structure of main frame is located to the quality piece cover to the quality piece can be followed columnar structure's axial direction and removed for columnar structure, and the quality piece includes the body and sets up the shutoff on the body, and this internal formation has the chamber of holding, and the shutoff can be opened or the open end that the chamber was held in the closure, through such setting, can reduce washing machine's vibration noise, promotes user experience.

Description

Drum washing machine

Technical Field

The utility model 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 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, the drum washing machine requires professional after-sales personnel 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.

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 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 in the case, the fixing device including a main frame; the washing machine comprises a main frame, a washing drum, a washing machine and a control device, wherein the washing drum is rotatably arranged in the main frame and is used for accommodating articles to be washed and washing water, a clothes putting-in opening is formed at the first end of the washing drum, a rotating shaft is arranged at the second end of the washing drum, and the rotating shaft is rotatably connected with one end of the main frame; 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 counterweight vibration damping device provided on the main frame; wherein the main frame includes a plurality of columnar members, and the counter weight vibration damping device includes: the mass block is sleeved on the columnar member and can move relative to the columnar member along the axial direction of the columnar member, the mass block comprises a body and a plug arranged on the body, an accommodating cavity is formed in the body, and the plug can open or close the opening end of the accommodating cavity; the limiting component is positioned in the accommodating cavity and fixedly connected with the columnar component; and the two elastic components are positioned in the accommodating cavity and are respectively positioned at two sides of the limiting component, one end of each elastic component is connected with the limiting component, and the other end of each elastic component is connected with the mass block.

In the above preferred technical solution of the drum washing machine, the limiting member is a limiting ring, and the limiting ring is sleeved on the columnar member.

In the above preferred technical solution of the drum washing machine, the limit ring is fixed to the columnar member in a snap-fit manner.

In the above preferred technical scheme of the drum washing machine, the drum washing machine further comprises an elastic bayonet lock, the columnar member is of a hollow structure, a first limiting hole is formed in the columnar member, a second limiting hole is formed in the limiting ring, and the elastic bayonet lock is located in the columnar member and is fixedly connected with the first limiting hole and the second limiting hole in a clamping manner.

In a preferred embodiment of the drum washing machine, the elastic member is a spring, and the spring is sleeved on the columnar member.

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, the washing drum is provided with a plurality of water passing structures along a circumferential direction thereof, the first water inlet and outlet assembly includes a plurality of first water pipes, first ends of the first water pipes are communicated with the corresponding water passing structures, and second ends of the first water pipes are communicated with the adaptor by means of the passages.

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 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.

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 the washing tub does not need to be cleaned, which is very convenient. In addition, fixing device includes the main frame, install counter weight vibration damper on the main frame, counter weight vibration damper includes the quality piece, stop component and elastic component, wherein, the columnar structure of main frame is located to the quality piece cover, and the quality piece can be followed columnar structure's axial direction and removed for columnar structure, the quality piece includes the body and sets up the shutoff on the body, this internal holding chamber that is formed with, the shutoff can be opened or the closed open end that holds the chamber, through such setting, can reduce washing machine's vibration noise, promote user experience.

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 schematic view of the assembly of the counterweight vibration damping device of the drum washing machine of the present invention with the upright post of the main frame.

List of reference numbers:

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; 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. a column; 5131. a first limiting hole; 61. a first water pipe; 62. a water collection member; 63. a connecting pipe; 64. rotating the tee; 65. a water inlet pipe; 66. a drain pipe; 67. draining pump; 621. a water diversion port; 641. a rotation port; 642. a fixed port; 71. a mass block; 72. a limiting ring; 73. a spring; 711. a body; 712. plugging; 721. a second limiting hole; 7111. a housing chamber; 8. the elastic clamping pin.

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 only for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.

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

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly and may be, for example, a fixed connection, a detachable connection, or an integral connection; 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, a vibration damping device, and a counterweight vibration damping device are disposed in the cabinet 1.

With continued reference to fig. 1 to 3, the washing drum 2 is used for containing articles to be washed and washing water, a laundry input opening 211 is formed at a first end (the left end of the washing drum 2 as viewed in fig. 1) of the washing drum 2, and a user can input laundry to be washed into the washing drum 2 through the laundry input opening 211 and take the washed laundry out of the washing drum 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, and the driving device is drivingly connected to the second 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 second 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, and exemplarily, the driving device comprises a motor 31, a belt 32 and a belt pulley 33 (see fig. 8 in detail), 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 (not shown in the figure) 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 and 3, the water inlet and outlet means is in communication with the second end of the washing tub 2, through which water can be supplied into the washing tub 2 or water in the washing tub 2 can be discharged.

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

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. Wherein a supporting structure is provided at the rear end of the main frame 51, and the rotating shaft 22 is rotatably connected with the supporting structure. Wherein the support structure is provided as a cylindrical structure 511.

With continued reference to fig. 2 and 4, the fixing device further comprises a plurality of rollers 52 arranged on the main frame 51, the plurality of rollers 52 abutting against the outer wall of the washing tub 2 in the mounted condition.

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 second end of the washing tub 2, and the water inlet and outlet means is communicated 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.

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 wall of the washing drum 2, so that water in the washing drum 2 can be favorably collected to the water collecting ring 213, and particularly when the washing drum 2 rotates, for example, when the washing machine executes a dehydration program, the water on the inner wall can be directly and quickly collected to the water collecting ring 213 along the water guide structure without being blocked by clothes, so that the dehydration capability 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.

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 of the present invention comprises 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 a water passing port 212 formed on the washing tub 2, that is, the first water inlet and drain assembly does not need to extend into the washing tub 2, the second water inlet and drain assembly is communicated with the outside, and the adaptor is mounted on a cylindrical structure 511 provided at the rear end of the fixing device.

When the washing cylinder 2 rotates, the first water inlet and drainage assembly and the part of the adaptor connected with the first water inlet and drainage assembly can rotate along with the washing cylinder 2, and the second water inlet and drainage assembly and the part of the adaptor connected with the second water inlet and drainage assembly are fixed.

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

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

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

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

The connecting member 23 includes a cylindrical body 231 and a connecting arm 232 connected to each other, wherein the number of the connecting arms 232 is plural, exemplarily, the number of the connecting arms 232 is three, the three connecting arms 232 are uniformly arranged along the circumferential direction of the cylindrical body 231, the connecting arm 232 and the cylindrical body 231 can be fixedly connected or integrally arranged, when being installed, the rotating shaft 22 can be inserted into the cylindrical body 231, and the two can be in interference fit or clearance fit, if clearance fit is adopted, the rotating shaft 22 and the cylindrical body 231 can be circumferentially fixed through a key, for example, 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, and the first key groove and the second key groove are circumferentially fixed through a key, of course, the rotating shaft 22 and the cylindrical body 231 are preferably in interference fit, so as to improve the connection stability of the two.

With continued reference to fig. 5, 8 and 9, in the installed condition, 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 there is a certain gap between the end of the rotating shaft 22 and the rear end of the cylinder 21, through which the second end of the first water pipe 61 can enter the passage 221 of the rotating shaft 22.

Specifically, when the 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 and the reinforcing member 2322 are fixedly connected, so that the first water pipe 61 can be prevented from being moved.

With continuing reference to fig. 4, the main frame 51 of the present invention comprises a plurality of column members including a plurality of columns 513 and a plurality of beams 512, and the number of the counterweight vibration dampers is a plurality and the counterweight vibration dampers are respectively sleeved on the columns 513 and the beams 512, it should be noted that the beams 512 comprise beams 512 extending along the axial direction of the washing drum 2 and beams 512 perpendicular to the axial direction of the washing drum 2, and preferably, the counterweight vibration dampers are only installed on the beams 512 perpendicular to the axial direction of the washing drum 2.

The counterweight vibration damping device of the present invention will be described below by taking a counterweight vibration damping device mounted on a column 513 as an example.

As shown in fig. 4 and 10, the counterweight vibration damping device includes a mass 71, a stopper member, and an elastic member, wherein the mass 71 is fitted around the column 513, and the mass 71 is movable relative to the column 513 in an axial direction of the column 513, that is, the mass 71 is movable up and down, the mass 71 includes a body 711 and a stopper 712 provided on the body 711, a housing chamber 7111 is formed in the body 711, and the stopper 712 is capable of opening or closing an open end of the housing chamber 7111 (a top end of the housing chamber 7111 as viewed in fig. 10).

With continued reference to fig. 10, a stop member and two resilient members are disposed in the receiving chamber 7111, wherein the stop member is fixedly connected to the pillar 513, the two resilient members are disposed at two sides of the stop member, respectively, i.e. one resilient member is disposed at the upper side of the stop member, the other resilient member is disposed at the lower side of the stop member, one end of the resilient member is connected to the stop member, and the other end of the resilient member is connected to the mass 71.

Illustratively, the bottom end of the elastic member on the upper side of the stop member is in abutting connection with the top end of the stop member, and the top end of the elastic member is in abutting connection with the inner wall of the plug 712; the bottom end of the elastic member on the lower side of the stopper member abuts against the inner wall of the housing chamber 7111, and the top end of the elastic member abuts against the bottom end of the stopper member.

When the washing machine operates, the mass blocks 71 arranged on the cross beams 512 can reciprocate along the axial direction of the cross beams 512 to damp vibration, the mass blocks 71 arranged on the upright posts 513 can reciprocate along the axial direction of the upright posts 513 to damp vibration, and the vibration noise of the washing machine can be further reduced by installing the counterweight vibration damping devices on the cross beams 512 and the upright posts 513 of the main frame 51, so that the use experience of a user is improved.

It should be noted that the limiting member may be configured as a limiting post, a limiting plate or a limiting ring, and the elastic member may be configured as a rubber sleeve or a spring, and such adjustment and change of the specific structural types of the limiting member and the elastic member do not depart from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.

Preferably, as shown in fig. 10, the position-limiting member is a position-limiting ring 72, the elastic member is a spring 73, and both the position-limiting ring 72 and the spring 73 are sleeved on the upright post 513.

Preferably, the stop collar 72 is snap fit to the post 513 as shown in FIG. 10. Exemplarily, the drum washing machine further includes an elastic bayonet 8, the upright 513 is a hollow structure, a first limiting hole 5131 is formed on the upright 513, a second limiting hole 721 is formed on the limiting ring 72, and the elastic bayonet 8 is located in the upright 513 and is clamped and fixed with the first limiting hole 5131 and the second limiting hole 721.

During installation, the body 711 of the mass 71 is sleeved on the column 513, the spring 73 located on the lower side of the limit ring 72 is sleeved on the column 513, the limit ring 72 is clamped on the column 513 through the elastic clamping pin 8, the spring 73 located above the limit ring 72 is sleeved on the column 513, and finally the plug 712 is installed on the body 711 of the mass 71 to close the opening end of the accommodating chamber 7111.

Preferably, the spring 73 is fixedly connected at both ends to the mass 71 and the stop collar 72. By the arrangement, the upper spring 73 and the lower spring 73 act simultaneously no matter the mass block 71 moves upwards or downwards, and the vibration reduction and noise reduction effects are better.

It should be noted that the installation manner of the counterweight vibration damping device and the cross beam 512 is the same as the installation manner of the counterweight vibration damping device and the upright post 513, and therefore, the detailed description is not repeated here.

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 utility model, and the technical scheme after the changes or substitutions can fall into the protection scope of the utility model.

Claims (10)

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

a fixing device disposed in the case, the fixing device including a main frame;

a washing drum rotatably disposed in the main frame, the washing drum being used for accommodating articles to be washed and washing water, a laundry input opening being formed at a first end of the washing drum, a rotating shaft being provided at a second end of the washing drum, the rotating shaft being rotatably connected to one end of the main frame;

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 counterweight vibration damping device provided on the main frame;

wherein the main frame includes a plurality of columnar members, and the counter weight vibration damping device includes:

the mass block is sleeved on the columnar member and can move relative to the columnar member along the axial direction of the columnar member, the mass block comprises a body and a plug arranged on the body, an accommodating cavity is formed in the body, and the plug can open or close the opening end of the accommodating cavity;

the limiting component is positioned in the accommodating cavity and fixedly connected with the columnar component; and

the two elastic components are respectively positioned on two sides of the limiting component, one end of each elastic component is connected with the limiting component, and the other end of each elastic component is connected with the mass block.

2. A drum washing machine according to claim 1, characterized in that the limiting member is a limiting ring, and the limiting ring is sleeved on the columnar member.

3. A drum washing machine according to claim 2, characterized in that the limiting ring is fixed with the columnar component in a clamping manner.

4. A drum washing machine as claimed in claim 3 further comprising a resilient latch, wherein the cylindrical member is hollow, a first limiting hole is formed in the cylindrical member, a second limiting hole is formed in the limiting ring, and the resilient latch is located in the cylindrical member and is fixed to the first and second limiting holes in a snap fit manner.

5. A drum washing machine according to claim 1, characterized in that the elastic member is a spring, and the spring is sleeved on the columnar member.

6. A drum washing machine according to claim 1, characterized in that a channel 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 channel.

7. A drum washing machine as claimed in claim 6 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.

8. A drum washing machine as claimed in claim 7 wherein the washing drum is provided with a plurality of water passing structures along its circumference, the first water inlet and outlet assembly comprises 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 via the channel.

9. A drum washing machine according to claim 8, 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.

10. A drum washing machine according to any of claims 1-9 characterized in that the fixture further comprises a plurality of rollers disposed on the main frame, which, in the installed condition, abut the outer drum wall of the washing drum.

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