CN213013519U

CN213013519U - Drum washing machine

Info

Publication number: CN213013519U
Application number: CN202020169558.3U
Authority: CN
Inventors: 赵志强; 许升
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2021-04-20
Anticipated expiration: 2030-02-14

Abstract

The utility model discloses a drum washing machine, which comprises an inner drum; the driving shaft is a hollow shaft and drives the inner cylinder to rotate; the spraying and stirring device is arranged in the inner cylinder and is provided with a spraying channel communicated with the driving shaft; further comprising: the spraying and stirring device is fixedly connected with the driving shaft, or the spraying and stirring device can be connected with the driving shaft in a rotating way. The utility model discloses in spray agitating unit nimble various connected form, for the motion that sprays agitating unit provides multiple possibility, both satisfied the demand that sprays, provided the rivers disturbance effect of more kinds again, still avoided the not enough condition that takes place the clothing winding and spray agitating unit of drive power.

Description

Drum washing machine

Technical Field

The utility model belongs to the washing machine field, specifically speaking relates to a drum type washing machine.

Background

The spraying device of the prior drum washing machine is generally arranged at the accessory of the inner drum door, and splashes water flow on the inner drum door when spraying, thereby blocking the observation sight of a user to the washing condition in the drum.

Chinese patent application No. 201710901069.5 discloses a drum washing machine, including: an outer tub; an inner barrel rotatably provided in the outer barrel; a water supply device; the stirrer is arranged in the inner barrel and connected with the water supply device, and the stirrer is driven by water supplied by the water supply device to rotate. According to the utility model discloses drum type washing machine is through setting up the agitator in the inner tube to adopt water supply installation to supply water to the agitator, can rotate through the water drive agitator that water supply installation supplied with, saved components such as individual drive agitator pivoted belt pulley and motor among the correlation technique, simplified the structure, it is more convenient to control, still the cost is reduced. In the utility model, the stirrer sprays into the roller, so that water flow on the inner barrel door is splashed when the spraying is avoided, and the observation sight of a user is blocked. However, in the above utility model, the agitator is driven by the water supplied from the water supply device, the position of the laundry in the drum is constantly changed, the driving force of the water pressure is relatively small, and the laundry may block the rotation of the agitator.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art, provides a drum type washing machine.

In order to solve the technical problem, the utility model adopts the following basic concept:

a drum washing machine comprises

An inner barrel;

the driving shaft is a hollow shaft and drives the inner cylinder to rotate;

the spraying and stirring device is arranged in the inner cylinder and is provided with a spraying channel communicated with the driving shaft;

the spraying and stirring device is fixedly connected with the driving shaft, or the spraying and stirring device can be connected with the driving shaft in a rotating way.

Furthermore, a water inlet end is arranged on the spraying and stirring device, a clamping groove structure is arranged on the water inlet end, and a clamping claw structure is arranged on the side wall of the driving shaft;

the clamping groove structure corresponds to the clamping jaw structure in position, and the clamping groove structure and the clamping jaw structure are connected in a clamping mode.

Furthermore, the clamping groove structure is a groove arranged on the end surface of the water inlet end, and the bottom of the groove is provided with a radial fixed clamping groove;

the claw structure is a radial protrusion arranged on the side wall of the driving shaft;

the radial bulge is an elastic element, or a radial mounting groove is formed in the driving shaft, an elastic element is arranged in the mounting groove, and the radial bulge is fixedly connected with the elastic element.

The driving shaft extends into the groove, the end face of the driving shaft is abutted to the bottom face of the groove, and the radial protrusion is clamped into the fixed clamping groove.

Furthermore, the fixed clamping groove is annularly arranged at the bottom of the groove, and the radial protrusion is movably connected with the fixed clamping groove.

Or the fixed clamping grooves are arranged at the bottom of the groove at intervals, the positions of the radial bulges correspond to the positions of the fixed clamping grooves, and the fixed clamping grooves are fixedly connected.

Further, the spraying and stirring device comprises a lock sleeve and a ball, and a water inlet end is arranged on the spraying and stirring device;

the lock sleeve is sleeved outside the water inlet end, a through ball hole is formed in the wall surface of the water inlet end, and a concave pit is formed in the side wall of the driving shaft;

the diameter of the ball is larger than the wall thickness of the water inlet end, when the ball is installed in place, the ball is located in the ball hole, one side of the ball abuts against the inner wall surface of the lock sleeve, and the other side of the ball abuts against the concave pit.

Further, the pits are circumferentially arranged on the side wall of the driving shaft at intervals, and the positions and the number of the balls and the ball holes correspond to those of the pits.

Further, the water inlet device comprises a self-locking spring which is arranged between the inner wall surface of the lock sleeve and the outer wall surface of the water inlet end.

Further, a sealing structure is included;

an annular groove is formed in the inner wall surface of the water inlet end, and the sealing structure is arranged in the annular groove;

the inner ring of the sealing structure is in a step shape, and the shape of the outer wall surface of the top end of the driving shaft is matched with the structure of the inner ring of the sealing structure.

Further, a one-way clutch is included;

a groove is arranged on the end surface of the water inlet end;

the one-way clutch is arranged in the groove and is respectively and fixedly connected with the inner wall surface of the groove and the outer wall surface of the driving shaft.

Further, the sealing structure is arranged between the driving shaft and the bottom surface of the groove.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has.

1) The utility model prevents the spray water from splashing on the machine door to influence the observation sight of the user by arranging the spray stirring device at the bottom of the inner cylinder;

2) the utility model discloses in spray agitating unit with drive shaft fixed connection, perhaps, spray agitating unit drive shaft pivoted relatively and connect, nimble various motion form provides multiple possibility for the motion that sprays agitating unit, has both satisfied the demand that sprays, has provided the rivers disturbance effect of more kinds again, has still avoided the not enough condition that takes place the clothing winding and spray agitating unit of drive power.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of the washing machine of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a partial schematic view of the lock sleeve of the present invention when not in place;

FIG. 4 is a partial schematic view of the lock sleeve of the present invention in place;

fig. 5 is an enlarged schematic view of a structure in fig. 1 according to the present invention.

In the figure: 100. a body; 110. a machine door; 120. a detergent box; 130. a controller; 140. a drainage device; 141. a drain pipe; 150. footing; 200. an outer cylinder; 300. an inner barrel; 310. a wave wheel body; 311. a spray chamber; 312. a wave wheel cover plate; 313. spraying holes; 314. spraying water inlet holes; 315. a water inlet end; 316. a sealing structure; 317. an annular groove; 318. a ball hole; 319. a groove; 320. a lock sleeve; 321. a ball bearing; 322. a clamp spring; 323. a self-locking spring; 330. lifting the ribs; 400. A drive shaft; 410. a water inlet hole of the driving shaft; 420. a jaw structure; 421. a pit; 422. mounting grooves; 500. a bearing; 600. a dynamic sealing structure; 700. a motor; 800. a water inlet valve; 810. water inlet pipe/circulating water pipe; 820. a water inlet retainer; 900. A one-way clutch.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1, a drum washing machine includes a machine body 100, an outer tub 200 and an inner tub 300 disposed in the machine body 100, the outer tub 200 and the inner tub 300 being coaxially disposed. The outer cylinder 200 is fixed in the machine body 100, and the inner cylinder 300 is fixed on the driving shaft 400 and driven by the driving shaft 400 to rotate. The lifting ribs 330 are arranged in the inner barrel 300, so that the clothes in the inner barrel 300 can be lifted to a certain height, then fall off, and are continuously lifted and dropped to play a role in beating, thereby achieving a cleaning effect on the clothes. In order to strengthen the effect of soaking to clothing in inner tube 300, the utility model discloses in still set up the agitating unit that sprays, through spraying agitating unit to spray water in the inner tube 300, can effectively improve the effect of soaking of clothing, simultaneously, because spray agitating unit sets up in the bottom of inner tube 300, spray water sprays to the front after following, can avoid spray water to splash to inner tube door or quick-witted door 110 through the jet distance of control water pressure control spray water, hinders user's observation sight. In addition, the spraying and stirring device can rotate along with the driving shaft 400, or rotate relative to the driving shaft 400, and play a role in stirring and disturbing the water flow in the inner barrel 300, so that the flowing diversity of the water flow is increased, the contact force between the water flow and clothes is enhanced, and the washing effect is enhanced.

And a spraying and stirring device which is arranged in the inner cylinder 300 and is provided with a spraying channel communicated with the driving shaft 400. The driving shaft 400 is a hollow shaft, a driving shaft water inlet 410 is arranged in the center of the driving shaft, water enters the spraying channel through the driving shaft water inlet 410, and water flows through the spraying stirring device and then is sprayed into the inner barrel 300.

The utility model discloses in, spray agitating unit and set up on drive shaft 400, spray agitating unit and be equipped with into water end 315 on, the center setting of intaking end sprays inlet opening 314, sprays inlet opening 314 and has constituteed the partly that sprays the passageway, drive shaft inlet opening 410 with spray inlet opening 314 and be linked together. The spraying and stirring device is fixedly connected with the driving shaft 400, or the spraying and stirring device can be rotatably connected with the driving shaft 400. When the spraying and stirring device is fixedly connected with the driving shaft 400, the driving shaft can drive the spraying and stirring device to rotate, and under the driving of the driving shaft 400, the influence of the obstruction of clothes on the driving force is small, so that continuous disturbance can be provided for the water flow in the inner cylinder 300; when the spraying and stirring device can be connected in a rotating way relative to the driving shaft 400, the movement of the spraying and stirring device is relatively free, and the spraying and stirring device can rotate freely under the driving of water flow in the inner cylinder and the impact of spraying water, so that continuous disturbance is provided for the water flow in the inner cylinder 300.

As shown in fig. 1, the spraying and stirring device further includes a stirrer connected to or integrally formed with the water inlet 315, the stirrer in this embodiment adopts a pulsator structure, and includes a pulsator body 310 and a pulsator cover 312, a spraying chamber 311 is provided between the pulsator body 310 and the pulsator cover 312, and is communicated with the spraying water inlet 314, so as to form another part of the spraying passage. The pulsator cover 312 in this embodiment covers the outer surface of the pulsator body 310, and the shape thereof is matched with the shape of the pulsator body 310, so as to enhance disturbance to the water flow in the inner tub 300. The surface of the pulsator cover 312 is provided with spray holes 313, and washing water or circulating water enters the driving shaft water inlet 410 through the water inlet tube 810, then enters the spray water inlet 314, is distributed into the spray chamber 311 through the spray water inlet 314, and finally is sprayed into the inner tub 300 through the spray holes 313.

As another solution of this embodiment, the pulsator cover 312 may also be disposed inside the pulsator body 310, and the spraying holes 313 are disposed on the wall surface of the pulsator body 310. The utility model discloses a cavity 311 is sprayed in impeller apron and impeller body constitution, rather than directly utilizing the inner structure of impeller body, is favorable to regulating and control the size that sprays cavity 311, has certain regulatory action to the pressure that sprays of shower water.

With reference to fig. 1 and 2, the spraying and stirring device comprises a water inlet 315, a clamping groove structure is arranged on the water inlet 315, a clamping jaw structure 420 is arranged on the side wall of the driving shaft 400, the clamping groove structure corresponds to the clamping jaw structure 420, and the clamping groove structure and the clamping jaw structure are connected in a clamping manner.

As shown in fig. 2, the slot structure is a groove 319 arranged on the end surface of the water inlet end 315, a radial fixing slot is arranged at the bottom of the groove 319, the claw structure 420 is a radial protrusion arranged on the side wall of the driving shaft, and when the claw structure is installed in place, the claw structure 420 is connected with the fixing slot in a clamping manner.

In order to improve the assembling efficiency between the driving shaft 400 and the water inlet end 315, the radial protrusion 420 in this embodiment is an elastic member, or as shown in fig. 2, a radial mounting groove 422 is provided on the driving shaft 400, an elastic member, such as a compression spring, is provided in the mounting groove 422, and the radial protrusion 420 is fixedly connected with the elastic member. During installation, radial protrusion 420 is pressed into installation groove 422, drive shaft 400 stretch into recess 319 in, when the installation targets in place, the terminal surface of drive shaft 400 with the bottom surface of recess 319 offsets, radial protrusion 420 pops out the card automatically under the effect of the elastic force of compression elastic element and goes into fixed draw-in groove, accomplishes the assembly of drive shaft 400 and water inlet end 315.

In order to prevent water from entering the connection gap between the water inlet end 315 and the driving shaft 400, a sealing structure 316 is provided between the water inlet end 315 and the driving shaft 400. An axial annular groove 317 is provided in the bottom surface of the recess 319, and a seal 316 is provided in the annular groove 317 to seal between the end surface of the drive shaft 400 and the bottom surface of the recess 319.

In this embodiment, the radial fixing slot formed at the bottom of the groove 319 may be annularly arranged, so that the radial protrusion 420 and the fixing slot are movably connected. To improve the stability of the installation already in operation, the radial projections 420 are preferably distributed circumferentially and uniformly along the wall of the drive shaft 400.

Or, the fixed slots are uniformly distributed at the bottom of the groove 319 at intervals, and the radial protrusions 420 correspond to the fixed slots and are fixedly connected with the fixed slots. And then realize spraying agitating unit and drive shaft 400's fixed connection, the drive shaft can drive and spray agitating unit and rotate, and under the drive of drive shaft 400, the influence that drive power received the clothing hindrance is little, can provide lasting disturbance for the rivers in the inner tube 300.

Example two

With reference to fig. 1, 3 and 4, the water inlet 315 is fixedly connected to the driving shaft 400 by the locking sleeve 320.

The lock sleeve 320 is sleeved outside the water inlet end 315, an annular bulge is arranged on the inner wall surface of the lock sleeve 320, a ball hole 318 penetrating through the wall surface of the water inlet end 315 is arranged, and a concave pit 421 is arranged on the side wall of the driving shaft 400. Before installation, the lock sleeve 320 is pressed towards the impeller body 310, then the driving shaft 400 is inserted into the spraying water inlet hole 314 of the water inlet end 315, the ball 321 is placed into the ball hole 318, the outer wall surface of the water inlet end 315 is provided with an annular bulge, a self-locking spring 323 is arranged between the annular bulge on the inner wall surface of the lock sleeve 320 and the annular bulge on the outer wall surface of the water inlet end 315, under the action of elastic force of the self-locking spring 323, the lock sleeve 320 moves towards the driving shaft 400, the annular bulge on the inner wall surface of the lock sleeve 320 pushes the ball 321 in a time radial direction, the ball 321 is pressed into the concave pit 421, and the installation is completed.

In this embodiment, the diameter of the ball 321 is greater than the wall thickness of the water inlet 315, and when the ball 321 is mounted in place, the ball 321 is located in the ball hole 318, one side of the ball abuts against the annular protrusion on the inner wall of the lock sleeve 320, and the other side of the ball abuts against the concave hole 421.

The recesses 421 are circumferentially arranged on the sidewall of the driving shaft 400 at intervals, and the positions and the number of the balls 321 and the ball holes 318 correspond to those of the recesses 421.

A sealing structure 316 is also included in this embodiment. An annular groove 317 is formed in the inner wall surface of the water inlet end 315, and the sealing structure 316 is arranged in the annular groove 317, so that the sealing effect is achieved between the end surface of the driving shaft 400 and the bottom surface of the groove 319.

The inner ring of the sealing structure 316 is in a step shape, the shape of the outer wall surface of the top end of the driving shaft 400 is matched with the inner ring structure of the sealing structure 316, and the outer wall surface of the driving shaft 400 is also in a step shape, so that when the driving shaft 400 and the water inlet end 315 are installed in place, the step on the outer wall surface of the driving shaft 400 is clamped with the inner ring structure of the sealing structure 316, and sealing is realized.

EXAMPLE III

Referring to fig. 1 and 5, in the present embodiment, the one-way clutch 900 is included, and the one-way clutch 900 is used to fixedly connect the driving shaft 400 and the water inlet 315, but the spraying stirring device can freely rotate around the driving shaft 400 after being connected, and can also rotate integrally with the driving shaft 400.

A groove 319 is arranged on the end surface of the water inlet end 315, and the one-way clutch 900 is arranged in the groove 319 and is respectively fixedly connected with the inner wall surface of the groove 319 and the outer wall surface of the driving shaft 400. The one-way clutch 900 includes an inner ring fixedly connected to an outer wall surface of the drive shaft 400, an outer ring fixedly connected to an inner wall surface of the recess 319, and balls slidably connected to the inner ring.

Due to the unidirectional nature of the motion within one-way clutch 900, it is only capable of rotating clockwise or counterclockwise, for example. In this embodiment, for example, the one-way clutch 900 can freely rotate clockwise, when the rotation direction of the driving shaft 400 is clockwise, the spraying stirring device freely rotates under the action of the one-way clutch 900; when the rotation direction of the driving shaft 400 is counterclockwise, the spraying agitating device rotates integrally with the driving shaft 400 under the action of the one-way clutch 900. Nimble diversified motion form provides multiple possibility for the motion that sprays agitating unit, when the washing, because drive shaft 400 drive inner tube 300 carries out clockwise and anticlockwise reciprocating motion, spray agitating unit under one-way clutch 900 and drive shaft 400's combined action, free rotation often, receive drive shaft 400's drive to rotate often, both satisfied the demand of spraying, more kinds of rivers disturbance effect has been provided again, the condition that the clothing winding sprayed agitating unit has still been avoided taking place to drive power not enough. When the dehydration, can set up drive shaft 400 anticlockwise rotation, and then drive and spray agitating unit and rotate together, when can avoiding the dehydration, the winding to the clothing when spraying agitating unit free rotation stops, makes the dehydration process high-efficient swift more.

Example four

In this embodiment, the driving shaft 400 is a dual-power driving structure, and includes a hollow first driving shaft and a hollow second driving shaft (not shown), the first driving shaft is coaxially sleeved outside the second driving shaft, the first driving shaft is fixedly connected to the inner cylinder 300, and the second driving shaft is fixedly connected to the spraying and stirring device.

The second driving shaft is provided therein with a driving shaft water inlet hole 410, the spray passage of the water inlet end 315 is communicated with the driving shaft water inlet hole 410 of the second driving shaft, and spray water enters the inner cylinder 300 through the driving shaft water inlet hole 410 and the spray passage.

The rotation direction of first drive shaft and second drive shaft can be the same or different, so the motion direction that sprays agitating unit and inner tube 300 can be the same or different, nimble various motion form provides multiple possibility for the motion that sprays agitating unit, when the washing, inner tube 300 and spray agitating unit between can relative rotation also syntropy rotate, both satisfied the demand of spraying, more kinds of rivers disturbance effect has been provided again, the condition that the clothing winding sprayed agitating unit has still been avoided taking place for driving power is not enough. During dehydration, the driving shaft 400 can be arranged to rotate together with the spraying and stirring device, and the spraying and stirring device can be used for blocking the winding of clothes during dehydration, so that the dehydration process is more efficient and faster.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical matters of the present invention are within the scope of the present invention.

Claims

1. A drum washing machine comprises

An inner barrel;

the driving shaft is a hollow shaft and drives the inner cylinder to rotate;

it is characterized by also comprising:

2. A drum washing machine according to claim 1, characterized in that:

the spraying and stirring device is provided with a water inlet end, the water inlet end is provided with a clamping groove structure, and the side wall of the driving shaft is provided with a clamping jaw structure;

3. A drum washing machine according to claim 2, characterized in that:

the clamping groove structure is a groove arranged on the end surface of the water inlet end, and the bottom of the groove is provided with a radial fixed clamping groove;

the radial bulge is an elastic element, or a radial mounting groove is arranged on the driving shaft, an elastic element is arranged in the mounting groove, and the radial bulge is fixedly connected with the elastic element;

4. A drum washing machine according to claim 3, characterized in that:

the fixed clamping groove is annularly arranged at the bottom of the groove, and the radial protrusion is movably connected with the fixed clamping groove;

5. A drum washing machine according to claim 1, characterized in that:

the spraying and stirring device comprises a lock sleeve and a ball, wherein a water inlet end is arranged on the spraying and stirring device;

6. A drum washing machine according to claim 5, characterized in that:

the pits are circumferentially arranged on the side wall of the driving shaft at intervals, and the positions and the number of the balls and the ball holes correspond to those of the pits.

7. A drum washing machine according to claim 5, characterized in that:

the water inlet device comprises a self-locking spring which is arranged between the inner wall surface of the lock sleeve and the outer wall surface of the water inlet end.

8. A drum washing machine according to claim 5, characterized in that:

comprises a sealing structure;

9. A drum washing machine according to claim 5, characterized in that:

comprises a one-way clutch;

a groove is arranged on the end surface of the water inlet end;

10. A drum washing machine according to claim 3 or 9, characterized in that:

the sealing structure is arranged between the driving shaft and the bottom surface of the groove.