CN212771562U - Washing machine and water inlet device thereof - Google Patents

Abstract

The utility model belongs to the technical field of washing machine, a washing machine water installations and washing machine are specifically disclosed. The water installations includes: the inner pipe body is provided with a water inlet at one end and a closed other end, and the pipe wall of the inner pipe body is provided with water through holes in a penetrating way; the outer pipe body is sleeved on the outer surface of the inner pipe body, and at least two water outlets are arranged on the outer pipe body at intervals; the driving unit is connected with the inner pipe body and is configured to drive the inner pipe body to rotate around the shaft or slide along the axial direction of the outer pipe body, so that the water inlet is selectively communicated with one water outlet through the water passing hole. The washing machine comprises the washing machine water inlet device. The utility model provides a washing machine water installations and washing machine can realize the multichannel of washing machine with simple structure and intake control, reduces washing machine water installations and washing machine's cost, improves washing machine water installations's safety in utilization and reliability.

Description

Washing machine and water inlet device thereof

Technical Field

The utility model relates to a washing machine technical field especially relates to a washing machine water installations and washing machine.

Background

With the gradual improvement of the social living standard, the washing machine becomes a necessary household appliance of each family basically, the labor intensity of consumers is reduced while the clothes are automatically washed, and the living quality of the consumers is improved.

The prior art discloses a water inlet device of a washing machine, which comprises a water inlet pipe and a water inlet box, wherein the water inlet box comprises a box body and a box seat, the box body is arranged in the box seat, and three agent containing grids are arranged in the box body and are respectively used for containing liquid laundry detergent, liquid softener and washing powder; the box seat is provided with three water inlets which are communicated with the three agent containing grids in a one-to-one correspondence manner; the three water inlets are respectively connected with a water inlet connecting pipe, and each water inlet connecting pipe is provided with an electromagnetic valve for controlling the on-off of water flow in the corresponding water inlet connecting pipe.

In the water inlet device provided by the prior art, a plurality of water inlet valves are required to control the on-off of water inlet of each water inlet connecting pipe, and the on-off of the water inlet valves is controlled by the on-off of coils arranged in the water inlet valves. Because the coil is wound on the coil shaft by adopting a winding process and sealed by plastic package, the coil has the risk of electric leakage or power failure of the coil caused by processing defects, service life and the like, and the normal use of the water inlet device is influenced; and the more the number of the water inlet valves is, the more the number of the coils is, and the greater the risk is; meanwhile, the cost of the water inlet device is high due to the fact that a plurality of water inlet valves are required to be arranged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a washing machine water installations reduces washing machine water installations's cost, improves washing machine water installations's safety in utilization and reliability.

Another object of the present invention is to provide a washing machine, which reduces the cost of the washing machine and improves the safety and reliability of the washing machine.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a water inlet device of a washing machine, comprising:

the inner pipe body is provided with a water inlet at one end and a closed other end, and the pipe wall of the inner pipe body is provided with water through holes in a penetrating way;

the outer pipe body is sleeved on the outer surface of the inner pipe body, and at least two water outlets are arranged on the outer pipe body at intervals;

the driving unit is connected with the inner pipe body and is configured to drive the inner pipe body to rotate around the shaft relative to the outer pipe body or slide along the axial direction of the inner pipe body, so that the water inlet is selectively communicated with one water outlet through the water through hole.

As a preferred technical solution of the water inlet device of the washing machine, the number of the water passing holes is the same as that of the water outlets, the water outlets and the water passing holes are in one-to-one correspondence with each other in the axial direction of the inner tube body, and when any one of the water passing holes rotates to be communicated with the corresponding water outlet, the rest of the water passing holes are sealed with the corresponding water outlets.

As a preferable technical solution of the water inlet device of the washing machine, the water outlets are overlapped at the position of the outer tube body in the circumferential direction, and the water passing holes are arranged at intervals in the circumferential direction of the inner tube body; or the water through holes are overlapped in the circumferential direction of the inner pipe body, and the water outlets are arranged at intervals in the circumferential direction of the outer pipe body.

As a preferable technical solution of the water inlet device of the washing machine, a sealing member is disposed between the inner tube and the outer tube, and the sealing member is used for preventing water from flowing into between the inner tube and the outer tube from the water through hole.

As a preferable technical scheme of the washing machine water inlet device, the sealing element comprises a first sealing element arranged at the water passing hole, the first sealing element is connected with the inner pipe body, the first sealing element and the inner wall of the outer pipe body form dynamic sealing, and the first sealing element is provided with a water passing hole corresponding to the water passing hole;

or the sealing element comprises a sealing sleeve sleeved between the inner pipe body and the outer pipe body, the outer peripheral wall of the sealing sleeve is in interference fit with the inner wall surface of the outer pipe body, the inner peripheral wall of the sealing sleeve and the inner pipe body form dynamic seal, and a water through hole is formed in the position, corresponding to the water outlet, of the sealing sleeve.

As a preferable technical scheme of the water inlet device of the washing machine, adjacent pipe sections are connected through pipe joints.

As a preferable technical scheme of the washing machine water inlet device, a first sealing element is arranged at the water passing hole, the first sealing element is connected with the inner pipe body, the first sealing element and the inner wall of the outer pipe body form dynamic sealing, and a water passing hole is formed in the position, corresponding to the water passing hole, of the first sealing element; and/or

And second sealing pieces are arranged on two sides of each water outlet along the axial direction of the outer pipe body, and the second sealing pieces are sleeved between the inner pipe body and the outer pipe body.

As a preferred technical scheme of the water inlet device of the washing machine, the water inlet device of the washing machine further comprises a water inlet valve, and the water inlet valve is arranged at the water inlet and used for controlling the on-off of the water inlet.

As a preferable technical solution of the water inlet device of the washing machine, the driving unit controls the inner pipe body to rotate, the water inlet valve is connected with the outer pipe body in a static sealing manner, and the water inlet valve is connected with the inner pipe body in a rotating sealing manner; or

The driving unit controls the inner pipe body to slide relative to the outer pipe body, and the water inlet valve is connected with the inner pipe body in a sealing mode through a corrugated pipe.

As a preferable technical scheme of the water inlet device of the washing machine, two ends of the corrugated pipe are provided with hard pipe parts, and the hard pipe parts are detachably and hermetically connected with the corresponding water inlet valve or the inner pipe body.

As a preferred technical scheme of a washing machine water inlet device, the outer pipe body comprises at least two pipe sections arranged along the axial direction of the outer pipe body, each pipe section is provided with at least one water outlet, and two adjacent pipe sections are detachably connected in a sealing mode.

A washing machine comprises the washing machine water inlet device.

The beneficial effects of the utility model reside in that:

the water inlet device of the washing machine provided by the utility model can realize the on-off control of selective water outlet of different water outlets and realize different water inlet requirements in the washing machine by arranging the driving unit to drive the inner pipe body to rotate relative to the outer pipe body or slide along the axial direction of the outer pipe body; because each water outlet is not required to be provided with a water inlet valve, the risks of electric leakage and power failure of the water inlet valves are reduced, and the use safety and reliability of the water inlet device of the washing machine are improved; meanwhile, the cost of the water inlet device of the washing machine can be reduced due to the fact that the number of the water inlet valves is reduced.

The utility model provides a washing machine, through adopting foretell washing machine water installations, can reduce washing machine's cost, improve washing machine security and reliability of intaking.

Drawings

Fig. 1 is a schematic structural view of a water inlet device of a washing machine according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of an inner tube according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an outer tube according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating the first sealing member, the inner tube and the outer tube according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a washing machine water inlet device provided by the second embodiment of the present invention.

The figures are labeled as follows:

1-an inner tube; 11-water through holes; 2-an outer body; 21-water outlet; 3-a water inlet valve; 31-connecting tube portions; 311-an extension; 4-a drive unit; 5-a first seal; 51-water through holes; 6-a second seal; 7-a third seal; 8-fourth seal.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

As shown in fig. 1 to 4, the present embodiment provides a water inlet device for a washing machine, which is applied to a washing machine and is used for realizing multi-path water inlet to the interior of the washing machine, so as to meet different water inlet requirements in a washing process. In the present embodiment, the structure and the function of the water inlet device of the washing machine are described in detail by taking the washing machine as a drum washing machine as an example, but it can be understood that the water inlet device of the washing machine can also be applied to a pulsator washing machine, and the structure of the water inlet device of the washing machine is not affected by the type of the washing machine.

The washing machine comprises a shell, a drum arranged in the shell and a drum driving mechanism arranged at the bottom of the drum and used for driving the drum to rotate. The front side of the shell is provided with a feeding opening, and the opening of the roller is opposite to the feeding opening; the front side of the shell is hinged with a machine door used for closing or opening the input opening; the door is provided with an observation window for observing the washing state of the clothes in the washing machine. In order to ensure the washing effect of clothes, the washing machine is provided with a detergent box, and at least two containing grooves are arranged in the detergent box and used for respectively containing clothes detergent and clothes softener. In order to realize the water inlet control of the inner drum and the detergent box of the washing machine, the washing machine is also provided with a washing machine water inlet device.

The washing machine structure except that washing machine water installations can specifically refer to prior art and set up, this non the utility model discloses a key, this embodiment do not restrict except that washing machine water installations structure, like the washing machine to some models, the last detergent box of washing machine and softener box components of a whole that can function independently set up, or be provided with the three or more than three storage tank on the detergent box.

Specifically, the water inlet device of the washing machine provided by the embodiment includes an inner tube 1, an outer tube 2, a connecting water pipe (not shown) and a driving unit 4, wherein a water inlet is formed at one end of the inner tube 1, the other end of the inner tube is closed, and a water through hole 11 is formed through the wall of the inner tube 1; the outer pipe body 2 is sleeved on the outer surface of the inner pipe body 1, and at least two water outlets 21 are arranged on the outer pipe body 2 at intervals; each water outlet 21 is connected with a connecting water pipe which is used for being communicated with different water inlet structures inside the washing machine, such as the inside of a roller, a detergent box and the like; the driving unit 4 is configured to drive the inner pipe 1 to rotate about its axis so that the water passing hole 11 selectively communicates with one of the water outlets 21.

In the water inlet device of the washing machine provided by the embodiment, the driving unit 4 is arranged to drive the inner pipe body 1 to rotate, so that the water through hole 11 on the inner pipe body 1 is selectively communicated with one of the water outlets 21, and the water outlets 21 for water outlet can be selectively arranged; because each water outlet 21 is connected with a connecting water pipe, each connecting water pipe can be communicated with different structures in the washing machine, and the water inlet control of different structures can be realized; if one of the connecting water pipes is communicated with the clothes detergent containing groove of the detergent box, and the other connecting water pipe is connected with the softener containing groove, the feeding control of the clothes detergent and the softener can be realized; if one is connected inside water pipe intercommunication cylinder, another is connected the water pipe and is set up towards the observation window, then can realize respectively the control of the inside main control of intaking of cylinder and wash control to the observation window.

That is, the water inlet device of the washing machine provided by the embodiment can realize on-off control of selective water outlet of different water outlets 21 by setting the driving unit 4 to drive the inner pipe body 1 to rotate, so as to realize different water inlet requirements in the washing machine; because each connecting water pipe is not required to be provided with one water inlet valve 3, the risks of electric leakage and power failure of the water inlet valves 3 are reduced, and the use safety and reliability of the water inlet device of the washing machine are improved; meanwhile, the cost of the water inlet device of the washing machine can be reduced due to the fact that the number of the water inlet valves 3 is reduced.

In order to facilitate connection and arrangement of the water pipes, the plurality of water outlets 21 are arranged at intervals along the axial direction of the outer pipe body 2, the inner pipe body 1 is provided with a plurality of water through holes 11 at intervals along the axial direction, the water through holes 11 and the water outlets 21 are arranged in a one-to-one correspondence manner along the axial direction of the inner pipe body 1, and when any water through hole 11 rotates to be communicated with the corresponding water outlet 21, the rest water through holes 11 and the corresponding water outlets 21 are in a non-communicated state. In other embodiments, a water hole 11 may be formed on the inner tube 1, and at least two water outlets 21 may be formed on the outer wall of the outer tube 2 at intervals along the circumferential direction thereof.

More preferably, the plurality of water outlets 21 coincide in the circumferential direction of the outer tube body 2, and the plurality of water holes 11 are arranged at even intervals in the circumferential direction of the inner tube body 1, so that the connecting water pipes connected at the water outlets 21 are arranged side by side, and the problem that the connecting water pipes are bent and wound is avoided. Further, the included angle of the inner pipe body 1 in the circumferential direction of the two adjacent water passing holes 11 is the same, so that the angle of the inner pipe body 1 required to rotate when the water outlet 21 is switched each time is controlled, the rotating angle of the inner pipe body 1 is consistent when the water outlet 21 is switched each time, and the control convenience is improved. In other embodiments, the water outlets 21 may be evenly spaced in the circumferential direction of the outer tube 2, and the water through holes 11 may overlap in the circumferential direction of the inner tube 1.

In the present embodiment, the shape of the water outlet 21 is preferably circular, which is convenient for processing, but the present invention is not limited thereto. The apertures of the water outlets 21 may be equal, or may be set to different apertures according to requirements, so as to change the water outlet pressure of the water outlets 21. The caliber of the water outlet 21 can be set according to the requirement.

In this embodiment, the driving unit 4 is a rotary driving motor, the driving unit 4 is disposed at an end of the inner tube 1 away from the water inlet, and an output shaft of the driving motor is connected to the inner tube 1. In practical application, the driving unit 4 is detachably connected with the washing machine housing to improve the installation stability of the water inlet device of the washing machine.

In order to avoid the rotation process of the inner pipe body 1, water flows into the gap between the inner pipe body 1 and the outer pipe body 2 from the water flowing holes 11, a sealing element is arranged between the inner pipe body 1 and the outer pipe body 2 and is used for preventing the water from flowing into the gap between the inner pipe body 1 and the outer pipe body 2 from the water flowing holes.

The sealing member is including setting up the first sealing member 5 in water hole 11 department, and first sealing member 5 is connected at interior body 1 surface, and first sealing member 5 corresponds water hole 11 and has seted up limbers 51, and the one side that interior body 1 was kept away from to first sealing member 5 forms rotary seal with the inner wall of outer body 2.

In this embodiment, cross the water hole 11 and be the circular port, first sealing member 5 is the loop configuration, the joint groove has been seted up on the periphery lateral wall of first sealing member 5, the periphery card of crossing water hole 11 is established in the joint groove, and the inner wall butt of one of them side cell wall in joint groove and interior body 1, prevent that first sealing member 5 from breaking away from crossing water hole 11, the opposite side cell wall in joint groove and the outer wall butt of interior body 1 improve the compactness of being connected of first sealing member 5 and interior body 1, prevent that rivers from flowing out and influencing sealed effect in the clearance between first sealing member 5 and the interior body 1.

The first sealing element 5 adopting the annular structure is simple in structure, convenient to set and low in cost. In other embodiments, the first sealing member 5 may have other structures, such as a cylindrical structure of the first sealing member 5, an inner surface of the first sealing member 5 is in interference fit with an outer surface of the inner tube 1, and an outer surface of the first sealing member 5 is in sliding sealing fit with an inner surface of the outer tube 2; or the first sealing element 5 is of an arc-shaped sheet structure, one side surface of the first sealing element is attached to the outer surface of the inner pipe body 1 and is in sealed clamping connection with a bayonet arranged on the inner pipe body 1 through a clamping claw structure convexly arranged on the side surface, and the other side surface of the first sealing element is in sliding sealed fit with the inner surface of the outer pipe body 2. In another embodiment, the first sealing member 5 may be a sealing sleeve, an outer circumferential wall of the sealing sleeve and an inner wall of the outer tube body avoid interference fit, an inner circumferential wall of the sealing sleeve forms a dynamic seal with the inner tube body 2, and a water hole 51 is formed in a position of the sealing sleeve corresponding to the water outlet 21.

Furthermore, in order to prevent any water hole 11 from communicating with the corresponding water outlet 21, the water flow flows to the adjacent water outlet 21, the sealing member further includes second sealing members 6 disposed at two sides of the water outlet 21 along the axial direction of the outer pipe body 2, and the two sides of each water outlet 21 along the axial direction of the outer pipe body 2 are both provided with the second sealing member 6, and the second sealing member 6 is sleeved between the inner pipe body 1 and the outer pipe body 2. Preferably, the second sealing element 6 is an O-shaped rotary sealing ring, a sealing groove is formed on the outer wall of the inner tube 1 and/or the inner wall of the outer tube 2, and the rotary sealing ring is disposed in the sealing groove. The rotary seal ring can adopt the conventional seal structure capable of rotating and sealing, and the utility model discloses do not specifically limit this.

The water inlet device of the washing machine further comprises a water inlet valve 3, and the water inlet valve 3 is connected to the water inlet of the inner pipe body 1 and used for realizing the on-off of water inlet at the water inlet. Furthermore, the end face of the outer pipe body 2 facing the water inlet valve 3 protrudes out of the corresponding end face of the inner pipe body 1, the valve seat of the water inlet valve 3 is connected with the outer pipe body 2, the specific connection mode can adopt flange end face connection or threaded screwing connection, the valve cavity of the water inlet valve 3 is communicated with the inside of the inner pipe body 1, and the problem that the water inlet valve 3 rotates due to the connection of the water inlet valve 3 and the inner pipe body 1 can be prevented.

In the present embodiment, the valve seat of the water inlet valve 3 is integrally formed with the outer pipe body 2 by casting or welding to improve the sealing performance of the connection between the water inlet valve 3 and the outer pipe body 2. More preferably, the connection pipe portion 31 of the feed valve 3 protrudes into the interior of the inner pipe body 1, and the third sealing member 7 is provided between the outer wall of the connection pipe portion 31 and the interior of the inner pipe body 1. The third seal 7 may be a rotary seal of the prior art, and will not be described herein.

To prevent water flowing in from the inlet valve 3 from entering the gap between the outer and inner pipes 2 and 1, the second seal 6 between the inlet valve 3 and the adjacent outlet 21 is disposed as close as possible to the inlet valve 3.

In this embodiment, the water inlet valve 3 is preferably a solenoid valve, which has high control precision, and the structure of the solenoid valve is the prior art, and is not described herein again.

In this embodiment, in order to improve the versatility and the flexibility of the water inlet device of the washing machine, the outer tube body 2 includes at least two segments arranged along the axial direction thereof, two adjacent segments are detachably connected, and each segment is provided with at least one water outlet 21. Through setting up the tubulation, can rationally select a plurality of tubulation section concatenation to form outer body 2 according to required 21 numbers of delivery port, improve washing machine water installations's flexibility of use and commonality. Preferably, each pipe section is provided with a water outlet 21, and the structure of each pipe section is the same, so that the universality and interchangeability of the pipe sections are improved, and the production cost is reduced.

In this embodiment, a branch section close to the water inlet valve 3 is integrally formed with a valve seat of the water inlet valve 3, and two adjacent branch sections are hermetically connected by using a pipe joint, so that the connection efficiency and the connection convenience between the branch sections are improved. The pipe joint is the prior art and is not described in detail herein. In other embodiments, the end surfaces of the segmented pipes can be welded with connecting flanges, and adjacent segmented pipes are connected through the flanges in a threaded mode.

Example two

As shown in fig. 5, the present embodiment provides a water inlet device for a washing machine, which, compared with the first embodiment, includes an inner tube 1, an outer tube 2, a water inlet valve 3, and a driving unit 4, and the difference lies in that the connection structure between the water inlet valve 3 and the outer tube 2 is different, and the structure same as that of the first embodiment is not repeated in this embodiment.

In this embodiment, as shown in fig. 5, the inlet valve 3 is detachably connected to the outer pipe body 2. Specifically, the inlet valve 3 is provided with a connecting pipe portion 31, the end portion of the connecting pipe portion 31 is provided with an external thread, the inner wall of the end of the outer pipe body 2 close to the water inlet is provided with an internal thread, and the connecting pipe portion 31 is in threaded connection with the outer pipe body 2.

More preferably, a fourth sealing member 8 is disposed between the outer wall of the connecting pipe portion 31 and the inner wall of the outer pipe 2, and the fourth sealing member 8 can prevent water from leaking out of the water inlet valve 3, thereby improving the sealing effect.

In order to better prevent the outlet water of the inlet valve 3 from entering between the outer pipe 2 and the inner pipe 1, the end of the connecting pipe 31 is provided with an extension part 311, the outer diameter of the extension part 311 is smaller than that of the connecting pipe 31, and the extension pipe 311 extends into between the inner pipes 1 and is provided with a third sealing member 7 with the inner pipes 1, so that the sealing between the inner pipes 1 and the extension pipe 311 is realized.

By arranging the extension part 311 and the third sealing element 7, the inlet water of the water inlet valve 3 can be further ensured to only flow into the inner pipe body 1, and the overall sealing performance of the water inlet device of the washing machine is effectively improved by matching with the second sealing element 6 close to the water inlet valve 3.

The embodiment also provides a washing machine, which comprises the washing machine water inlet device.

EXAMPLE III

The embodiment provides a washing machine water inlet device, which is applied to a washing machine and used for realizing water inlet inside the washing machine and realizing different water inlet requirements. Compared with the first embodiment, the water inlet device of the washing machine provided by the present embodiment also includes a water inlet valve 3, an inner tube 1, an outer tube 2 and a driving unit 4, and the difference is that the arrangement and movement manner of the inner tube 1 are different from those of the first embodiment.

Specifically, in this embodiment, the inner tube 1 is provided with at least one water through hole 11, the outer tube 2 is sleeved outside the inner tube 1, and the outer tube 2 is provided with at least two water outlets 21 at intervals along the circumferential direction thereof. The driving unit 4 is connected to the inner tube 1 and configured to drive the inner tube 1 to slide along an axial direction of the outer tube 2, so that the water through hole 11 is selectively communicated with one of the water outlets 21.

According to the water inlet device of the washing machine, the driving unit 4 is arranged to drive the inner pipe body 1 to slide relative to the outer pipe body 2 along the axial direction of the inner pipe body, so that on-off control of selective water outlet of different water outlets 21 can be realized, and different water inlet requirements in the washing machine can be met; because each connecting water pipe is not required to be provided with one water inlet valve 3, the risks of electric leakage and power failure of the water inlet valves 3 are reduced, and the use safety and reliability of the water inlet device of the washing machine are improved; meanwhile, the cost of the water inlet device of the washing machine can be reduced due to the fact that the number of the water inlet valves 3 is reduced.

In this embodiment, the inner tube 1 is provided with a water hole 11, and when the inner tube 1 slides along the axial direction relative to the outer tube 2, the water hole 11 is sequentially communicated with the water outlet 21 on the outer tube 2. With this arrangement, the overall length of the outer tube 2 can be shortened. In other embodiments, the inner tube 1 is provided with at least two water through holes 11 at intervals along the axial direction thereof, and when the inner tube 1 slides relative to the outer tube 2 along the axial direction thereof, the water through holes 11 are sequentially communicated with the corresponding water outlets 21, and when any water through hole 11 is communicated with the corresponding water outlet 21, the rest of the water through holes 11 are sealed from the water outlets 21. When a plurality of water through holes 11 are provided, the stroke of the inner pipe body 1 required to slide can be shortened, but the overall length of the outer pipe body 2 is increased. In practical use, the number of the water through holes 11 on the inner pipe body 1 can be set according to requirements.

In order to prevent water from flowing into the space between the inner pipe body 1 and the outer pipe body 2 through the water holes 11, the inner pipe body 1 is provided with a first sealing member 5. The first sealing member 5 is preferably a sleeve-shaped structure, which is sleeved on the inner tube 1 and has a water through hole 51 at a position corresponding to the water through hole 11. Or the structure of the first sealing element 5 can refer to the structure of the sealing element 5 in the first embodiment, at this time, preferably, the two ends of the inner tube 1 are both sleeved with fifth sealing elements, and the fifth sealing elements are sliding sealing elements and move synchronously with the inner tube 1, so as to realize sliding dynamic sealing between the inner tube 1 and the outer tube 2. The structure and arrangement of the sliding seal are prior art and will not be described herein.

In the present embodiment, to prevent the water in the inlet valve 3 from flowing into the outer pipe 2, it is preferable that the inlet valve 3 is hermetically connected to the inner pipe 1. And in order to prevent the inlet valve 3 from being damaged and reduce the operational reliability due to the movement of the inlet valve 3 along with the inner pipe 1, the connecting pipe portion 31 of the inlet valve 3 is connected to the inner pipe 1 by a bellows so as to keep the inlet valve 3 stationary by the contraction or extension of the bellows during the sliding along with the inner pipe 1.

More preferably, both ends of the corrugated pipe are provided with hard pipe portions which are screw-coupled with the corresponding coupling pipe portions 31 or the inner pipe body 1, and the arrangement of the hard pipe portions can improve the coupling convenience and coupling reliability. Furthermore, a sixth sealing element is sleeved on the outer peripheral wall of the hard tube part and used for realizing the sealing connection between the corrugated tube and the water inlet valve 3 and the inner tube body 1.

In the present embodiment, the driving unit 4 is preferably a wax motor, which is small and low in cost. In other embodiments, the driving unit 4 may be a linear motor with other structural forms, or an oil cylinder with a smaller volume, or a rotary motor may be further selected to cooperate with a rack-and-pinion mechanism to realize linear motion, etc. The structure of the driving unit 4 capable of realizing linear motion is more in the prior art, and this embodiment does not specifically limit and describe here.

The embodiment also provides a washing machine, which comprises the washing machine water inlet device.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A water inlet device of a washing machine, comprising:

the water inlet is formed in one end of the inner pipe body (1), the other end of the inner pipe body is closed, and water passing holes (11) are formed in the pipe wall of the inner pipe body (1) in a penetrating mode;

the outer pipe body (2), the outer pipe body (2) is sleeved on the outer surface of the inner pipe body (1), and at least two water outlets (21) are arranged on the outer pipe body (2) at intervals;

a driving unit (4) connected with the inner pipe body (1) and configured to drive the inner pipe body (1) to rotate around an axis relative to the outer pipe body (2) or slide along the axial direction of the inner pipe body (1) so as to enable the water inlet to be selectively communicated with one water outlet (21) through the water through hole (11).

2. The water inlet device of the washing machine as claimed in claim 1, wherein the number of the water through holes (11) is the same as that of the water outlets (21), the water outlets (21) and the water through holes (11) are in one-to-one correspondence with each other in the axial direction of the inner tube body (1), and when any one of the water through holes (11) rotates to be communicated with the corresponding water outlet (21), the rest of the water through holes (11) are sealed with the corresponding water outlet (21).

3. The water inlet device of the washing machine as claimed in claim 2, characterized in that the water outlets (21) are coincident in the circumferential direction of the outer pipe body (2), and the water through holes (11) are arranged at intervals in the circumferential direction of the inner pipe body (1); or the water through holes (11) are overlapped in the circumferential direction of the inner pipe body (1), and the water outlets (21) are arranged at intervals in the circumferential direction of the outer pipe body (2).

4. A water inlet device for washing machine according to claim 1, characterized in that a sealing member is arranged between the inner tube (1) and the outer tube (2) for preventing water flow from the water through holes to between the inner tube (1) and the outer tube (2).

5. The water inlet device of the washing machine as claimed in claim 4, characterized in that the sealing member comprises a first sealing member (5) arranged at the water through hole (11), the first sealing member (5) is connected with the inner pipe body (1), the first sealing member (5) forms a dynamic seal with the inner wall of the outer pipe body (2), and the first sealing member (5) is provided with a water through hole (51) corresponding to the position of the water through hole (11);

or the sealing element comprises a sealing sleeve sleeved between the inner pipe body (1) and the outer pipe body (2), the outer peripheral wall of the sealing sleeve is in interference fit with the inner wall surface of the outer pipe body (2), the inner peripheral wall of the sealing sleeve and the inner pipe body (1) form dynamic sealing, and a water through hole (51) is formed in the position, corresponding to the water outlet (21), of the sealing sleeve.

6. The water inlet device of the washing machine as claimed in any one of claims 1 to 5, characterized in that the water inlet device further comprises a water inlet valve (3), and the water inlet valve (3) is arranged at the water inlet for controlling the on-off of the water inlet.

7. The washing machine water intake device according to claim 6, characterized in that the drive unit (4) controls the rotation of the inner pipe body (1), the water intake valve (3) is in static sealing connection with the outer pipe body (2), and the water intake valve (3) is in rotational sealing connection with the inner pipe body (1); or

The driving unit (4) controls the inner pipe body (1) to slide relative to the outer pipe body (2), and the water inlet valve (3) is connected with the inner pipe body (1) in a sealing mode through a corrugated pipe.

8. The water inlet device of washing machine as claimed in claim 7, characterized in that the bellows has hard pipe parts at both ends, and the hard pipe parts are detachably and hermetically connected with the corresponding water inlet valve (3) or the inner pipe body (1).

9. A washing machine water inlet device according to any one of claims 1-5, characterized in that the outer tube body (2) comprises at least two segments arranged along its axial direction, each segment is provided with at least one water outlet (21), and two adjacent segments are detachably and hermetically connected.

10. A washing machine characterized by comprising a washing machine water inlet device as claimed in any one of claims 1 to 9.

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