CN110607655A

CN110607655A - Drum washing machine and inner barrel assembly thereof

Info

Publication number: CN110607655A
Application number: CN201810617467.9A
Authority: CN
Inventors: 吕佩师; 许升; 赵志强; 赵新宇
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd
Current assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2019-12-24
Anticipated expiration: 2038-06-15
Also published as: CN110607655B

Abstract

The invention belongs to the technical field of clothes treatment equipment, and particularly provides a drum washing machine and an inner drum assembly thereof. The invention aims to solve the problem that the existing circulating spraying device influences a user to observe clothes in a drum washing machine through a glass observation window. The inner cylinder component comprises an inner cylinder and a transmission shaft which are coaxially and fixedly connected together or integrally manufactured; the transmission shaft is provided with a channel along the axis direction; a plurality of injection holes aligned with the channels are formed in the bottom end of the inner barrel; one end of the transmission shaft abuts against the bottom end of the inner cylinder, and the passage and the plurality of injection holes are thus communicated. The drum washing machine with the inner drum component can avoid the situation that the washing water sprayed from the spray holes completely covers the front end of the inner drum, so that a user can clearly observe the washing condition of the clothes in the inner drum through the glass observation window.

Description

Drum washing machine and inner barrel assembly thereof

Technical Field

The invention belongs to the technical field of clothes treatment equipment, and particularly provides a drum washing machine and an inner drum assembly thereof.

Background

The existing drum washing machine originates from Europe and mainly comprises a box body, an outer drum and an inner drum from outside to inside. The drum washing machine operates in a manner similar to the principle of hitting clothes with a hammer. When the device works, the inner cylinder is driven by the driving motor to rotate. Along with the rotation of the inner drum, the clothes are continuously lifted and dropped in the drum, and then lifted and dropped again to do repeated movement. Under the combined action of the washing powder and the water, the clothes are washed clean.

In order to improve the effect of washing and rinsing the clothes by water flow, some drum washing machines are also provided with a circulating spraying device. A drum type washing machine, as disclosed in patent publication No. CN102482834B, has a circulation path provided therein, one end of which leads to a bottom end of a water tub (outer tub), and the other end of which leads to a plurality of discharge ports provided at an opening edge of the water tub. The circulation path can supply the washing water from the bottom end of the water tank to the plurality of spray ports, and further spray the washing water into the drum (inner drum) to circularly wash the clothes.

However, the circulating shower device (specifically, the nozzle or the water jet) of the conventional drum washing machine is disposed near the front end of the outer tub, and sprays the washing water into the inner tub from the outer tub opening. When a user observes clothes from the glass observation window, the sprayed water flow influences the sight of the user, so that the user cannot know the current washing condition of the clothes.

Accordingly, there is a need in the art for a new drum washing machine and drum assembly thereof to solve the above problems.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, to solve the problem that the existing circulating spray device affects the user to observe the clothes in the drum washing machine through the glass observation window, the present invention provides an inner drum assembly of the drum washing machine, wherein the inner drum assembly comprises an inner drum and a transmission shaft which are coaxially fixed together or integrally manufactured; the transmission shaft is provided with a channel along the axis direction; a plurality of injection holes aligned with the channels are formed in the bottom end of the inner barrel; one end of the transmission shaft abuts against the bottom end of the inner cylinder, and the passage and the plurality of injection holes are thus communicated.

In a preferred version of the inner barrel assembly described above, the drive shaft includes a front portion and a rear portion, the diameter of the passage in the rear portion being greater than the diameter of the passage in the front portion so as to increase the area of the passage projected onto the rear end of the inner barrel.

In a preferred technical solution of the above inner cylinder assembly, the inner cylinder assembly further includes a mounting bracket, the mounting bracket includes an inner connecting portion and an outer connecting portion, the mounting bracket is fixedly connected or integrally formed with the front portion through the inner connecting portion, and the mounting bracket is fixedly connected or integrally formed with the inner cylinder through the outer connecting portion.

In a preferred embodiment of the inner cylinder assembly, the inner cylinder assembly further includes a sealing ring disposed between the transmission shaft and the inner cylinder, and the transmission shaft and the inner cylinder are connected in a sealing manner by clamping the sealing ring.

In a preferred technical solution of the above inner cylinder assembly, an annular groove is provided at one end of the transmission shaft close to the inner cylinder, and the annular groove is used for accommodating the sealing ring.

In a preferred embodiment of the inner cylinder assembly described above, one of the plurality of injection holes is provided at an axial center of the inner cylinder and directed to an inner cylinder port of the inner cylinder; the rest of the injection holes are symmetrically arranged around the axis of the inner cylinder and respectively point to the side wall of the inner cylinder.

In addition, the invention also provides a drum washing machine, which comprises a water supply device and the inner barrel assembly in any one of the preferable technical schemes of the inner barrel assembly, wherein the water supply device is used for supplying water to the channel.

In the preferable technical scheme of the drum washing machine, the water supply device is a circulating pump, a water inlet of the circulating pump leads to the inside of the outer drum, and a water outlet of the circulating pump is communicated with the channel.

In a preferred technical solution of the above drum washing machine, the drum washing machine further includes a circulation water pipe, and the circulation pump is communicated with the passage through the circulation water pipe.

In the preferable technical scheme of the drum washing machine, the water supply device is a water inlet valve, a water inlet valve port of the water inlet valve is connected with a water source, and a water outlet valve port of the water inlet valve is communicated with the channel.

It can be understood by those skilled in the art that in the preferred technical solution of the present invention, by providing the channel along the axial direction on the transmission shaft and providing the plurality of injection holes at the bottom end of the inner tub corresponding to the channel, the injection holes can inject the washing water provided by the channel into the inner tub from the bottom end of the inner tub, thereby avoiding the situation that the washing water sprayed from the injection holes completely covers the front end of the inner tub, and enabling the user to clearly observe the washing condition of the laundry in the inner tub through the glass observation window.

In one possible embodiment of the present invention, the drum washing machine of the present invention includes a cabinet, an outer tub fixedly disposed in the cabinet, and a circulation pump, the inner tub being pivotally disposed in the outer tub through a transmission shaft. The water inlet of the circulating pump is communicated with the inside of the outer barrel, and the water outlet of the circulating pump is communicated with one end, far away from the outer barrel body, of the channel. When the washing machine works, the circulating pump pumps the washing water in the outer barrel to the plurality of jet holes through the channel, and the plurality of jet holes spray the washing water into the inner barrel.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

FIG. 1 is a front view of a drum washing machine according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 4 is a schematic structural view of a propeller shaft according to an embodiment of the present invention;

fig. 5 is an enlarged view of a portion C in fig. 2.

List of reference numerals:

1. a box body; 2. an outer cylinder; 3. an inner barrel; 31. an injection hole; 4. a drive shaft; 41. a channel; 411. a first channel; 412. a second channel; 413. a third channel; 42. a threaded hole; 43. an annular groove; 5. a drive motor; 6. a door body; 61. a glass viewing window; 7. sealing the window gasket; 8. a connecting pipe; 9. draining pump; 10. a drain pipe; 11. a circulation pump; 12. a circulating water pipe; 13. a mounting frame; 14. and (5) sealing rings.

Detailed Description

It should be understood by those skilled in the art that the embodiments of the present invention are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the components in the drawings are illustrated in a certain proportional relationship, the proportional relationship is not constant, and those skilled in the art can make modifications as required to adapt to specific applications, and the modified embodiments will still fall within the scope of the present invention.

It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" in the description of the present invention are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a direct connection, an indirect connection via an intermediate medium, and a communication 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.

As shown in fig. 1 and 2, the drum washing machine of the present invention mainly includes a cabinet 1, an outer tub 2, an inner tub assembly (not shown), a driving motor 5, a door 6, a sealing window gasket 7, a connection pipe 8, a drain pump 9, and a drain pipe 10. Wherein, the outer cylinder 2 is fixedly arranged in the box body 1, and the inner cylinder component comprises an inner cylinder 3 and a transmission shaft 4 which are connected together or integrally manufactured. The inner cylinder 3 is rotatably disposed in the outer cylinder 2 through a transmission shaft 4, a driving motor 5 is fixedly disposed outside the outer cylinder 2, and the driving motor 5 is coaxially and fixedly connected with the transmission shaft 4. The door 6 is pivotally connected to the cabinet 1. The sealing window gasket 7 is provided between the box body 1 and the outer cylinder 2. A connection pipe 8, a drain pump 9 and a drain pipe 10 are provided in the cabinet 1. One end of the connection pipe 8 is connected with the lower portion of the outer tub 2 (the lower portion of the outer tub 2 in fig. 2), and the other end of the connection pipe 8 is connected with the water inlet of the drain pump 9, which is thus communicated with the outer tub 2. The water outlet of the drainage pump 9 is connected with one end of a drainage pipe 10, and the other end of the drainage pipe 10 is communicated with the outside. The drain pump 9 can drain the washing water in the outer tub 2 through the drain pipe 10.

Further, as will be understood by those skilled in the art, when each portion of the drain pipe 10 is lower than the inner bottom end of the outer tub 2, those skilled in the art can omit the drain pump 9 and replace the drain pump 9 with a stop valve as needed. When the drum washing machine needs to drain, the cut-off valve is opened, so that the washing water in the outer tub 2 is automatically drained from the drain pipe 10 by its own weight.

As shown in fig. 2, a front end of the casing 1 (right side of the casing 1 in fig. 2) is provided with a casing port (not shown), a front end of the outer cylinder 2 (right side of the outer cylinder 2 in fig. 2) is provided with an outer cylinder port (not shown), and a front end of the inner cylinder 3 (right side of the inner cylinder 3 in fig. 2) is provided with an inner cylinder port (not shown). One end of the sealing window gasket 7 is connected with the edge of the opening of the box body in a sealing mode, and the other end of the sealing window gasket 7 is connected with the edge of the opening of the outer barrel in a sealing mode. The door 6 is pivotally provided on the cabinet 1, and the door 6 can close the cabinet opening when closed, preventing the washing water in the tub 2 from overflowing from the cabinet opening.

With continued reference to fig. 2, door 6 includes a glass viewing window 61. When the door 6 closes the opening, the user can observe the laundry in the inner tub 3 through the glass observation window 61.

As described above, the inner cylinder assembly of the present invention mainly includes the inner cylinder 3 and the transmission shaft 4. Wherein, the bottom of inner tube 3 and the one end fixed connection of transmission shaft 4.

As shown in fig. 2 and 3, the bottom end of the inner cylinder 3 is provided with five injection holes 31 aligned with the transmission shaft 4 near the shaft center. One of the injection holes 31 is provided on the axial center of the inner cylinder 3 and directed toward the inner cylinder mouth; the remaining four injection holes 31 are symmetrically arranged around the axis of the inner cylinder 3 and are directed toward the side walls of the inner cylinder 3, respectively. In a preferred embodiment of the present invention, each of the spraying holes 31 is formed in a flat shape so that the washing water sprayed from the spraying holes 31 is formed in a waterfall shape. Further, the skilled person may also arrange the injection hole 31 in any other feasible form as needed, for example, arrange the injection hole 31 in a circular hole shape, an elliptical hole shape, a triangular hole shape, etc. Further, the number of the injection holes 31 may be appropriately adjusted by those skilled in the art as needed, for example, the number of the injection holes 31 is adjusted to three, six, seven, nine, or the like.

As shown in fig. 4, the propeller shaft 4 includes a front portion and a rear portion. The front and rear portions are demarcated by a broken line in fig. 4, the portion to the left of the broken line is the front portion, and the portion to the right of the broken line is the rear portion. Further, a channel 41 penetrating through the shaft axis direction is arranged in the transmission shaft 4, and the channel 41 comprises a first channel 411, a second channel 412 and a third channel 413 which are communicated in sequence. Wherein the third passage 413 is located at the rear of the drive shaft 4, and the diameter of the third passage 413 is larger than the diameters of the first passage 411 and the second passage 412. The first passage 411 is disposed offset from the axial center of the transmission shaft 41. Further, the left end of the transmission shaft 41 is provided with a screw hole 42, and the transmission shaft 4 is coaxially fixed with the rotor of the driving motor 5 through the screw hole 42. The right end of the drive shaft 41 is provided with an annular groove 43, which annular groove 43 is intended to receive the sealing ring 14. Further, the position of the first passage 411 and the threaded hole 42 may be appropriately adjusted by those skilled in the art as needed, for example, the first passage 411 is disposed coaxially with the transmission shaft 4, and the threaded hole 42 is disposed offset from the axial center of the transmission shaft 4.

As shown in fig. 5, the inner barrel assembly of the present invention further includes a mounting bracket 13. The mounting bracket 13 includes an inner coupling portion (not shown) and an outer coupling portion (not shown). The mounting bracket 13 is fixedly coupled to the front portion of the driving shaft 4 by an inner coupling portion. It will be appreciated by those skilled in the art that the mounting bracket 13 and the drive shaft 4 may be connected together by any suitable connection, such as a welding machine, a threaded connection, an interference connection, etc. Or the mounting bracket 13 and the transmission shaft 4 may be integrally formed as required by those skilled in the art. The mounting bracket 13 is fixedly connected to the inner cylinder 3 by means of an outer connection. It will be appreciated by those skilled in the art that the mounting bracket 13 and the inner barrel 3 can be connected together by any suitable connection, such as a welding machine, snap fit, bolt connection, etc. Or the mounting bracket 13 and the inner barrel 3 can be made integrally as required by those skilled in the art.

It will be appreciated by those skilled in the art that the mounting bracket 13 may be of any feasible configuration, such as a Y-shaped configuration, a triangular configuration, a circular disk configuration, etc.

As shown in fig. 2 and 5, in the installed state, the left end of the transmission shaft 4 passes through the rotor of the driving motor 5 and then abuts against the right end of the connecting member (not shown), and the bolt passes through the mounting hole of the connecting member and then is screwed with the threaded hole 42 of the transmission shaft 4, thereby fastening the transmission shaft 4 and the rotor of the driving motor 5 together. Wherein the diameter of the connecting member is larger than the diameter of the inner hole of the rotor of the driving motor 5 for preventing the transmission shaft 4 from escaping from the rotor of the driving motor 5.

With continued reference to fig. 2 and 5, in the installed state, the transmission shaft 4 is fixed to the inner cylinder 3 through the mounting bracket 13, and the transmission shaft 4 and the inner cylinder 3 which are fixed together compress the sealing ring 14, so that the transmission shaft 4 and the inner cylinder 3 are connected in a sealing manner. Wherein, the injection holes 31 on the inner cylinder 3 are surrounded by the sealing ring 14 to ensure that each injection hole 31 can communicate with the third passage 413.

It will be understood by those skilled in the art that the diameter of the third passage 413 is larger than the diameters of the first and second passages 411 and 412 in order to make the projected area of the third passage 413 on the bottom end of the inner tube 3 in the axial direction as large as possible, so as to provide more injection holes 31 on the inner tube 3; secondly, the load-bearing capacity of the propeller shaft 4 is prevented from being reduced when the diameter of the passage 41 is made sufficiently large, in other words, the load-bearing strength of the propeller shaft 4 is ensured by connecting the mounting bracket 13 to the front portion of the propeller shaft 4 having the second passage 412.

With continued reference to fig. 2, the drum washing machine of the present invention further includes a circulation pump 11 and a circulation water pipe 12. Wherein the circulation pump 11 is preferably arranged within the tank 1 and fixedly connected to the tank 1. Alternatively, the circulation pump 11 may be fixedly connected to the outer tub 1 as required by those skilled in the art. The inlet of the circulation pump 11 is connected to the connection pipe 8 and thus opens into the interior of the outer tub 2. The water outlet of the circulating pump 11 is connected and communicated with one end of the circulating water pipe 12, and the other end of the circulating water pipe 12 is communicated with the channel 41. In operation, the circulation pump 11 pumps the washing water in the tub 2 through the circulation pipe 12 to the passage 41, and the plurality of spray holes 31 spray the washing water onto the laundry in the tub 3.

As shown in fig. 2 and 5, the water outlet end of the circulating water pipe 12 is connected with the connecting member in a sealing manner, and the connecting member can rotate freely relative to the water outlet end of the circulating water pipe 12.

Further, in the preferred embodiment of the present invention, the water pressure supplied from the circulation pump 11 enables the washing water sprayed from the spray hole 31 to partially fall onto the glass observation window 61 and the sealing gasket 7. So as to clean the glass observation window 61 and the sealing window gasket 7, and avoid the detergent from accumulating on the glass observation window 61 and the sealing window gasket 7, which affects the cleanness of the glass observation window 61 and the sealing window gasket 7, and further affects the washing condition of the user for observing the clothes in the inner tub 3 through the glass observation window 61.

As can be understood by those skilled in the art, the circulation pump 11 of the present invention can pump the washing water in the tub 2 into the passage 41, and then spray the washing water into the tub 3 through the plurality of spray holes 31 communicating with the passage 41. Therefore, compared with the prior art in which the spray holes/nozzles are arranged near the front end of the outer tub 2, the drum washing machine of the present invention prevents the water flow sprayed from the spray holes/nozzles from accumulating at the front end of the outer tub 2, and blocks the view of the user for observing the clothes in the inner tub 3. Furthermore, the washing water sprayed from the plurality of spray holes 31 of the present invention can also clean the glass observation window 61 and the sealing window gasket 7, thereby ensuring the cleanliness of the glass observation window 61 and the sealing window gasket 7. Furthermore, the washing water sprayed from each spray hole 31 rotates along with the rotation of the inner cylinder 3 to form annular spraying water flow, thereby optimizing the spraying effect.

Although not shown in the drawings, the present invention also provides another embodiment of the inner drum assembly, which is different from the above-described preferred embodiment in that the inner drum assembly does not have the mounting bracket 13, and the driving shaft 4 is directly fixedly connected to the inner drum 3 or is integrally formed. In this case, the seal ring 14 is also omitted in the case where the drive shaft 4 and the inner tube 3 are integrally formed. Alternatively, one skilled in the art can also pass the transmission shaft 4 through the inner tub 3 as needed, so that the transmission shaft 4 directly sprays the washing water into the inner tub 3.

Although not shown in the drawings, the present invention provides another embodiment of the drum washing machine, and those skilled in the art can omit the circulation pump 11 to communicate the water inlet end of the circulation water pipe 12 with the water outlet valve port of the water inlet valve, if necessary. When the inlet port of the inlet valve is connected to an external water source, the inlet valve can supply tap water to the passage 41 through the circulating water pipe 12, so that the plurality of injection holes 31 inject the tap water into the inner tube 3.

It should be noted that, in the case that the spraying structure can spray the washing water into the inner tub 3 from the rear part and/or the middle part of the inner tub 3, the technical solutions formed by splitting the above technical solutions and the technical solutions formed by combining the above technical solutions should fall within the protection scope of the present invention. The combination between the above technical solutions includes a combination of complete technical solutions, and also includes a combination of partial technical features in one technical solution and partial technical features in another technical solution.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. An inner barrel assembly of a drum washing machine is characterized in that the inner barrel assembly comprises an inner barrel and a transmission shaft which are coaxially fixed together or integrally manufactured;

the transmission shaft is provided with a channel along the axis direction;

a plurality of injection holes aligned with the channels are formed in the bottom end of the inner barrel;

one end of the transmission shaft abuts against the bottom end of the inner cylinder, and the passage and the plurality of injection holes are thus communicated.

2. A drum assembly for a drum washing machine according to claim 1, characterized in that the drive shaft includes a front portion and a rear portion, the diameter of the passage in the rear portion being greater than the diameter of the passage in the front portion so as to increase the area of the passage projected onto the rear end of the drum.

3. The drum washing machine's inner drum assembly according to claim 2, characterized in that the inner drum assembly further comprises a mounting bracket, the mounting bracket comprises an inner connecting portion and an outer connecting portion, the mounting bracket is fixedly connected or integrally made with the front portion through the inner connecting portion, and the mounting bracket is fixedly connected or integrally made with the inner drum through the outer connecting portion.

4. A drum assembly for a drum washing machine according to claim 1, characterized in that the drum assembly further comprises a sealing ring disposed between the transmission shaft and the drum, the transmission shaft and the drum being sealingly connected by clamping the sealing ring.

5. A drum assembly for a drum washing machine according to claim 4, characterized in that the end of the drive shaft near the drum is provided with an annular groove for receiving the sealing ring.

6. A drum assembly of a drum washing machine according to any one of claims 1 to 5, characterized in that one of the plurality of injection holes is provided at the axis center of the drum and directed to the drum opening of the drum; the rest of the injection holes are symmetrically arranged around the axis of the inner cylinder and respectively point to the side wall of the inner cylinder.

7. A drum washing machine, characterized in that the drum washing machine comprises a water supply device for supplying water to the channel and the inner drum assembly of any one of claims 1 to 6.

8. A drum washing machine according to claim 7, characterized in that the water supply device is a circulation pump, the water inlet of which opens into the outer tub, and the water outlet of which communicates with the passage.

9. A drum washing machine according to claim 8, characterized in that the drum washing machine further comprises a circulation water pipe through which the circulation pump communicates with the passage.

10. A drum washing machine according to claim 7, characterized in that the water supply device is a water inlet valve, the water inlet valve port of which is connected to a water source, and the water outlet valve port of which is communicated with the channel.