CN115807320A - Water supply unit and washing machine - Google Patents

Abstract

A water supply unit mixes supplied water with a washing treatment agent and feeds the mixed water into a washing tank, the water supply unit including: a water supply port for supplying the water; a detergent supply port for supplying the detergent treatment agent; a main body having an inlet opening formed therein, the inlet opening being configured to introduce the water and the cleaning treatment agent into the washing tank; and a ceiling portion that covers the opening of the main body portion and on which the water supplied from the water supply port flows, the ceiling portion including: a plurality of water injection holes for injecting the water supplied from the water supply port into the main body; and a detergent hole which is continuous with the detergent supply port in the vertical direction and allows the detergent treatment agent supplied from the detergent supply port to pass through the main body, wherein the plurality of water injection holes are formed around the detergent hole.

Description

Water supply unit and washing machine

Technical Field

The invention relates to a water supply unit and a washing machine.

Background

Conventionally, a liquid detergent supply device for a washing machine for supplying a liquid detergent to the washing machine has been disclosed (for example, refer to Japanese patent application laid-open No. 8-229293).

In the liquid detergent feeding device for the washing machine, the liquid detergent is contained in a container.

The liquid detergent is supplied to the full automatic washing machine through a pipe connected to the container.

Disclosure of Invention

Since the diameter, length, and the like of the pipe restrict the flow rate of the liquid detergent (washing treatment agent) flowing through the pipe, the time for supplying the washing treatment agent into the washing machine tends to be long. Since the supplied washing treatment agent may not be uniformly distributed over the object to be washed if it adheres to the object to be washed without being mixed with water, it is preferable to continuously supply water mixed with the washing treatment agent during the supply of the washing treatment agent, but it is not possible to exceed a set water amount, and thus a small amount of water needs to be mixed with the washing treatment agent.

The present disclosure provides a water supply unit and a washing machine, which can be easily mixed with a supplied washing treatment agent even with a small amount of water supply.

A water supply unit according to an aspect of the present disclosure mixes supplied water with a washing treatment agent and feeds the mixed water into a washing tub, the water supply unit including: a water supply port for supplying the water; a detergent supply port for supplying the detergent treatment agent; a main body having an opening at an upper side thereof, the main body having an inlet for introducing the water and the cleaning treatment agent into the washing tank; and a ceiling portion that covers the opening of the main body portion and on which the water supplied from the water supply port flows, the ceiling portion including: a plurality of water injection holes for injecting the water supplied from the water supply port into the main body; and a detergent hole which is continuous with the detergent supply port in the vertical direction and allows the detergent treatment agent supplied from the detergent supply port to pass through the main body, wherein the plurality of water injection holes are formed around the detergent hole.

A washing machine according to one aspect of the present disclosure includes: the water supply unit; and a washing tank into which the water and the washing treatment agent are fed from the water supply unit.

Drawings

Fig. 1 is a partially cut-away external perspective view of a washing machine according to an embodiment.

Fig. 2 is an external perspective view of a water supply unit of the washing machine provided thereon.

Fig. 3 is an exploded perspective view of the water supply unit as above.

Fig. 4 is a plan view of the water supply unit with the cover portion removed.

Fig. 5 is a plan view of the main body of the water supply unit described above.

Fig. 6 is a perspective view of the main body of the water supply unit as above.

Detailed Description

The embodiment and the modifications described below are merely examples of the present invention, and the present disclosure is not limited to the embodiment and the modifications. In addition to the embodiment and the modification, various modifications can be made in accordance with design and the like as long as the modifications do not depart from the scope of the technical idea of the present invention.

(embodiment mode)

Hereinafter, a washing machine 1 and a water supply unit 2 used in the washing machine according to the present embodiment will be described with reference to fig. 1 to 6. Hereinafter, the directions of the upper, lower, left, right, front, and rear directions shown in fig. 1 to 6 will be described as references. However, these directions are set for convenience of explanation, and are not intended to be directions in use.

Fig. 1 is a perspective view of the washing machine 1. In fig. 1, a longitudinal section from which a right front portion of the washing machine 1 is removed is shown in order to illustrate an internal configuration of the washing machine 1.

Washing machine 1 of the present embodiment is a so-called vertical washing machine, and includes washing tub 112 having an open upper surface. The washing machine 1 is a shoe washing machine that assumes shoes as the laundry. The object to be washed is not limited to shoes, and may be any solid material.

As shown in fig. 1, the washing machine 1 includes an outer case 110, an upper member 120, an upper cover 130, a base member 140, a driving mechanism 150, and the like. The outer case 110 has a square tubular shape with upper and lower openings. The upper member 120 is provided on the upper side of the outer case 110, and the base member 140 is provided on the lower side of the outer case 110. The upper cover 130 can open and close an opening penetrating the upper surface member 120 in the vertical direction. The water tank 111 is disposed in the outer case 110, and is a substantially bottomed cylindrical shape that opens upward. A drain portion for draining water in the water tank 111 is provided at the bottom of the water tank 111.

A washing tub 112 into which shoes as an object to be washed are put is provided in the water tub 111. Like water tank 111, washing tank 112 is a substantially bottomed cylindrical shape that opens upward, and is rotatable with respect to water tank 111. An axis O passing through the rotation center of the washing tub 112 extends in the vertical direction. A drain portion is formed at the bottom of the washing tub 112, and a plurality of drain holes are formed in the peripheral wall or the upper end portion of the washing tub 112. Through the upper end opening of the washing tub 112, the shoes enter and exit the washing tub 112 from above. A balance ring 114 is provided along an upper end opening edge of the washing tub 112.

Washing machine 1 includes a rotating body 113 disposed at the bottom of washing tub 112 and rotating about an axis extending in the vertical direction. For example, the rotary body 113 is a disk-shaped pulsator for agitating water in the washing tub 112. Rotating body 113 is rotatable with respect to washing tub 112. An axis passing through the rotation center of the rotary body 113 substantially coincides with the axis O of the washing tub 112. A driving mechanism 150 for driving the washing tub 112 and the rotary body 113 to rotate is provided below the washing tub 112. A clutch 151 is provided between the driving mechanism 150 and the washing tub 112 and the rotating body 113. The state of the power transmission of the driving mechanism 150 to the washing tub 112 and the rotary body 113 and the state of the power transmission of the driving mechanism 150 to only the rotary body 113 are switched by the clutch 151.

As shown in fig. 1, the washing machine 1 includes a brush holder 103. Brush holder 103 has shaft 160 fixed to the upper side of rotary body 113 and brush unit 107 extending from shaft 160 toward inner circumferential surface 112A of washing tub 112, and rotates together with rotary body 113. The axis passing through the rotation center of the brush holder 103 passes through the center of the shaft 160 and substantially coincides with the axis O of the washing tub 112. Therefore, the washing tub 112, the rotary body 113, and the brush holder 103 can all rotate about the axis O. The rotation direction about the axis O substantially coincides with the circumferential direction of the washing tub 112.

Further, the washing machine 1 of the present embodiment has the coin handling apparatus 100 provided on the upper surface of the upper member 120, for example, in a coin storage. When a coin of a predetermined amount is inserted into coin processing device 100, washing machine 1 washes shoes using water and a washing treatment agent supplied from the outside.

The washing machine 1 includes a water supply unit 2 for mixing water supplied from the outside and a detergent into the washing tub 112. Examples of the detergent treatment agent include a detergent, a softener, and a bleaching agent. In the present embodiment, a case where the washing treatment agent is a liquid detergent will be described as an example.

The water supply unit 2 is disposed inside the upper member 120. The water supply unit 2 is connected to a water supply hose for supplying water and a detergent hose for supplying a detergent treatment agent.

The structure of the water supply unit 2 will be described with reference to fig. 2 to 6.

As shown in fig. 2 and 3, the water supply unit 2 includes a valve unit 3, a ceiling portion 4, a cover portion 5, and a main body portion 6.

The valve unit 3 is connected to a faucet through a water supply hose, and adjusts the amount of water supplied to the washing tub 112. The valve unit 3 has a hose connection portion 31, a first water supply port 32, a second water supply port 33, a first water supply valve 34, and a second water supply valve 35.

As shown in fig. 1, the hose connection portion 31 is exposed upward from the upper member 120 of the washing machine 1, and is connected to a water supply hose. The end of the water supply hose opposite to the hose connection portion 31 is connected to the faucet. The hose connection portion 31 supplies water from the faucet via a water supply hose. The water supplied to the hose connection part 31 is output from the first and second water supply ports 32 and 33.

The first and second water supply ports 32 and 33 are arranged in a front-rear direction to supply water to the right. The first water supply port 32 is provided in front of the second water supply port 33. The first water supply valve 34 is, for example, an electromagnetic valve, and is configured to be capable of adjusting the amount of water output from the first water supply port 32. The second water supply valve 35 is, for example, an electromagnetic valve, and is configured to be capable of adjusting the amount of water output from the second water supply port 33. The open/close states of the first water supply valve 34 and the second water supply valve 35 are controlled by a valve control unit. When coins of a predetermined amount are thrown into the coin processing apparatus 100, the valve control unit controls the opening and closing of the first water supply valve 34 and the second water supply valve 35 according to the contents of the washing process.

The ceiling portion 4 is formed in a plate shape with the vertical direction being the thickness direction. The ceiling portion 4 is disposed below the valve unit 3, and receives water supplied from the first water supply port 32 and the second water supply port 33. As shown in fig. 3 and 4, a first water supply chamber 41 for supplying water supplied from the first water supply port 32 to the main body 6 and a second water supply chamber 42 for supplying water supplied from the second water supply port 33 to the main body 6 are provided on the right side of the valve unit 3 in the ceiling portion 4.

The first water supply chamber 41 has a plurality of through holes formed in the upper surface of the ceiling portion 4 as the bottom surface thereof, and communicates with the main body portion 6. The first water supply chamber 41 temporarily stores water supplied from the first water supply port 32. The water accumulated in first water supply chamber 41 is injected into main body 6 through the plurality of through holes.

Specifically, the bottom surface of the first water supply chamber 41 is divided into a first region 411 and a second region 412.

The first region 411 is formed in a substantially inverted U shape. The first region 411 is located directly below the first water supply port 32 and directly receives water output from the first water supply port 32. The first region 411 is formed with a plurality of first and second water injection holes 431 and 432 among the plurality of through holes. The plurality of first and second water injection holes 431 and 432 are different in the portion where water is injected in the main body 6. In the main body 6, the portions to be filled with water from the plurality of first and second water filling holes 431 and 432 will be described in detail later.

The second water filling hole 432 is a circular through hole and is formed near the first water supply port 32. The first water injection holes 431 are circular through holes and are formed at positions farther from the first water supply port 32 than the second water injection holes 432.

In addition, a detergent hole 44 for allowing the detergent treatment agent to pass through the main body 6 is formed in the first region 411. The detergent hole 44 is a circular through hole. A peripheral wall 440 is formed around the outer periphery of detergent hole 44 so as to surround detergent hole 44. Peripheral wall 440 is formed to protrude upward from the outer peripheral edge of detergent hole 44. The detergent hole 44 is vertically continuous with a detergent supply port 51 (see fig. 2 and 3) of the cover 5 provided above the ceiling portion 4.

As shown in fig. 4, a plurality of first water injection holes 431 are formed around the detergent hole 44. In the present embodiment, 11 first water injection holes 431 are formed around the detergent hole 44 as the plurality of first water injection holes 431. The 11 first water injection holes 431 are formed to surround the detergent hole 44. Specifically, 8 first water injection holes 431 out of the 11 first water injection holes 431 are formed at the center of the detergent hole 44 at 8 positions in the front-rear left-right direction and the oblique direction intersecting the front-rear left-right direction. Of the 11 first water injection holes 431, the remaining 3 first water injection holes 431 are formed in front of the 8 first water injection holes 431 and are arranged in the left and right direction. That is, the 11 first water injection holes 431 are formed to increase the number of water injection holes located in front of the detergent hole 44.

In the present embodiment, the 8 first water injection holes 431 are formed at 8-directional positions around the detergent hole 44, but the present invention is not limited thereto. For example, the 4 first water injection holes 431 may be formed at four directional positions (for example, front-rear-left-right directions) so as to surround the detergent hole 44.

The second area 412 is disposed right behind the first area 411. A partition wall 413 is provided between the first region 411 and the second region 412. Partition wall 413 is provided to protrude upward from the bottom surface of first water supply chamber 41. The partition wall 413 is provided so as to form a gap with the lid 5. Therefore, the water of the first region 411 passes over the partition wall 413 to be immersed in the second region 412. The third and fourth water injection holes 433 and 434 among the plurality of through holes are formed in the second region 412. The third water injection hole 433 and the fourth water injection hole 434 are different in the portion where water is injected in the main body portion 6. In the main body portion 6, the portions to be injected with water from the third and fourth water injection holes 433 and 434 will be described in detail later.

The third water injection hole 433 is a rectangular through hole whose longitudinal direction is the horizontal direction, and is formed at the rear end portion of the second region 412. The fourth water injection hole 434 is a circular through hole and is formed at a position closer to the first water supply port 32 than the third water injection hole 433. The third and fourth water injection holes 433 and 434 will be described in detail later.

As shown in fig. 3 and 4, the second water supply chamber 42 has a plurality of through holes formed in the upper surface of the ceiling portion 4 serving as the bottom surface to communicate with the main body portion 6. The second water supply chamber 42 temporarily stores water supplied from the second water supply port 33. The water accumulated in the second water supply chamber 42 is injected into the main body 6 through the plurality of through holes.

Specifically, second water supply chamber 42 is divided into water receiving chamber 421 and water filling chamber 422. The water supplied from second water supply port 33 moves from water receiving chamber 421 to water filling chamber 422 through bypass portion 61 provided in main body portion 6, and is supplied to main body portion 6 through a through hole formed in water filling chamber 422.

Water receiving chamber 421 is provided behind first region 411 of first water supply chamber 41 and to the left of second region 412 of first water supply chamber 41. A first partition wall 423 is provided between the water receiving chamber 421 and the first water supply chamber 41. The movement of water between the water receiving chamber 421 and the first water supply chamber 41 is blocked by the first partition wall 423. Second water supply port 33 is located in water receiving chamber 421, and outputs water to water receiving chamber 421. A water outlet hole 451 is formed in the bottom surface of the water receiving chamber 421. The outlet hole 451 is a circular through hole. The water supplied from the second water supply port 33 to the water receiving chamber 421 is supplied to the bypass portion 61 of the main body portion 6 through the outlet hole 451 (see fig. 5 and 6).

The detour portion 61 is formed in a rectangular parallelepiped shape having a space formed therein. The upper surface of the bypass portion 61 is formed with water inlet holes 611 and water outlet holes 612 arranged in the front-rear direction. The inlet hole 611 is continuous with the outlet hole 451 of the water receiving chamber 421 in the vertical direction. The water outlet hole 612 is continuous with a water inlet hole 452 formed in the water injection chamber 422 in the vertical direction.

The water supplied from second water supply port 33 enters the internal space of bypass portion 61 through outlet hole 451 of water receiving chamber 421 and water inlet hole 611 of bypass portion 61. When the inner space of the bypass portion 61 is filled with water, the water flows out from the inlet hole 452 of the water filling chamber 422 through the outlet hole 612 of the bypass portion 61. Thereby, the water supplied from the second water supply port 33 is delivered from the water receiving chamber 421 to the water filling chamber 422 through the bypass portion 61.

As shown in fig. 6, the bypass portion 61 has a drain hole 613 for draining water stored in the internal space. The drain hole 613 is a small-diameter through hole formed in the front wall of the bypass portion 61, and is formed near the bottom.

The water filling chamber 422 is provided in front of the first water supply chamber 41. A second partition 424 is provided between the water injection chamber 422 and the first water supply chamber 41. The movement of water between the water filling chamber 422 and the first water supply chamber 41 is blocked by the second partition 424.

The water injection chamber 422 is formed with a fifth water injection hole 461 and a pair of sixth water injection holes 462 among the plurality of through holes. The fifth water injection hole 461 and the pair of sixth water injection holes 462 are different in the portion where water is injected in the main body portion 6. The details of the portion of the main body 6 into which water is injected from the fifth water injection hole 461 and the pair of sixth water injection holes 462 will be described later.

The fifth water injection hole 461 is a through hole having an elongated shape with the left-right direction as the longitudinal direction, and is provided in front of the plurality of first water injection holes 431 formed in the first region 411 of the first water supply chamber 41. The pair of sixth water injection holes 462 are circular through holes, and are formed in a row in the left-right direction in front of the fifth water injection hole 461.

As shown in fig. 2 and 3, the cover 5 is provided so as to integrally cover the first and second water supply chambers 41 and 42 of the ceiling portion 4 and the first and second water supply ports 32 and 33 of the valve unit 3 from above.

The cover 5 has a detergent supply port 51 through which detergent is supplied from the outside. The detergent supply port 51 is formed in a cylindrical shape and protrudes upward from the upper surface of the cover 5.

The upper end of the detergent supply port 51 is connected to a detergent hose. The detergent hose is connected to the detergent tank via a pump. The pump is provided in the coin processing apparatus 100 provided on the upper surface of the upper member 120 and is controlled by a pump control unit. When a predetermined amount of coins are inserted into the coin processing apparatus 100, the pump control unit operates the pump according to the content of the washing process, and a predetermined amount of the washing process agent is fed from the detergent tank to the detergent supply port 51. The lower end of the detergent supply port 51 is continuous with the peripheral wall 440 of the detergent hole 44 provided in the ceiling portion 4. Therefore, the detergent supply port 51 and the detergent hole 44 are continuous in the vertical direction, and the washing treatment agent flows into the detergent hole 44 from above through the detergent supply port 51.

As shown in fig. 5 and 6, the main body 6 is formed in a box shape having an upper opening. The opening of the main body 6 is closed by the ceiling 4. The body 6 has a step formed at the bottom, and includes a lower step 601, an intermediate step 602, and an upper step 603.

The upper stage portion 603 is formed in a rectangular shape whose vertical direction is the longitudinal direction, and is provided with a detour portion 61. A second water injection hole 432 and a fourth water injection hole 434 of the first water supply chamber 41 of the ceiling portion 4 are formed above the upper stage portion 603. Therefore, in the upper stage part 603, water supplied from the first water supply port 32 is injected from the second and fourth water injection holes 432 and 434.

The middle step 602 is formed in a rectangular shape with the left-right direction as the longitudinal direction, and is located in front of the upper step 603. The middle step portion 602 is located below the upper step portion 603, and water flows in from the upper step portion 603. The middle step 602 is inclined so as to descend from the left to the right, and the water flows rightward.

The lower step portion 601 is formed in a rectangular shape whose longitudinal direction is the front-rear direction, and is positioned rightward of the upper step portion 603 and the middle step portion 602. A partition wall 604 is provided between the upper stage 603 and the lower stage 601, and water is configured so as not to flow directly from the upper stage 603 to the lower stage 601. A plurality of first water injection holes 431, third water injection holes 433, and detergent holes 44 of the first water supply chamber 41 of the ceiling portion 4 are formed above the lower stage portion 601. Therefore, the water supplied from the first water supply port 32 is injected into the lower stage 601 through the plurality of first and third water injection holes 431 and 433, and the washing treatment agent is supplied from the detergent hole 44. Further, a fifth water injection hole 461 and a pair of sixth water injection holes 462 of the second water supply chamber 42 of the ceiling portion 4 are formed above the lower stage portion 601. Therefore, the water supplied from the second water supply port 33 is injected into the lower stage part 601 through the fifth water injection hole 461 and the pair of sixth water injection holes 462.

The lower step 601 is inclined so as to descend from the rear to the front, and water and the washing treatment agent flow from the rear to the front. The lower stage 601 has an inlet 62 at its distal end. The inlet 62 is open at the lower side and is located above the washing tub 112. The water and the washing treatment agent flowing through the lower stage 601 are introduced into the washing tank 112 through the inlet 62.

The middle step portion 602 is formed at a left position with respect to a substantially central portion in the front-rear direction of the lower step portion 601. Therefore, the water from the middle step portion 602 flows into the lower step portion 601 at a substantially central portion in the front-rear direction. That is, the water flowing through the middle stage 602 merges with the water flowing through the lower stage 601 and the washing treatment agent. In other words, the main body 6 of the present embodiment includes: a first flow path 631 through which water supplied from the plurality of first and third water injection holes 431 and 433 and a detergent treatment agent supplied from the detergent hole 44 flow toward the inlet 62; and a second flow path 632 through which water supplied from the second and fourth water injection holes 432 and 434 flows. The water flowing through the second flow path 632 is mixed with the water flowing through the first flow path 631 and is fed to the inlet 62. The first flow channel 631 is a flow channel including at least a position rearward of the detergent hole 44 in the lower stage 601. The second flow path 632 is a flow path including the middle stage portion 602.

In the main body 6, a first rib 641 and a second rib 642 are provided at a junction of the first flow channel 631 and the second flow channel 632. First rib 641 and second rib 642 are provided so as to protrude upward from lower section 601 of main body portion 6.

The first rib 641 extends rightward and forward from the distal end of the partition wall 604 between the upper stage portion 603 and the lower stage portion 601. The front end of the first rib 641 is located at the center of the lower step 601 in the lateral direction and in front of the detergent hole 44. Of the 11 first water injection holes 431, 7 first water injection holes 431 adjacent to the detergent hole 44 are located at the right rear side of the first rib 641, and the remaining 4 first water injection holes 431 are located at the left front side or front side of the first rib 641. The first flow channel 631 is a flow channel including a portion on the right side of the first rib 641 in the lower stage portion 601. Therefore, the first rib 641 narrows the width of the first flow channel 631 in the left-right direction.

The second rib 642 is formed closer to the inlet 62 than the first rib 641. The second rib 642 is formed to extend rightward and forward from a right front end portion of the middle step portion 602. The distal end of the second rib 642 is located at the center of the lower step 601 in the left-right direction. The portion between the first rib 641 and the second rib 642 in the lower step portion 601 constitutes the second flow path 632 together with the middle step portion 602. The second rib 642 narrows the vertical width of the second flow path 632 together with the first rib 641.

Next, the flow of water and the washing treatment agent when the water and the washing treatment agent are mixed and fed into the washing tank 112 will be described.

In the case where water and the detergent treatment agent are mixed and introduced, the water supply unit 2 of the present embodiment supplies water from only the first water supply port 32 of the first water supply port 32 and the second water supply port 33. Then, the water supplied from the first water supply port 32 and the detergent treatment agent supplied from the detergent supply port 51 are mixed and fed into the washing tank 112. For example, when water is accumulated in the washing tub 112, water is supplied from both the first water supply port 32 and the second water supply port 33 and is introduced into the washing tub 112.

In addition, in a state where water is supplied from the first water supply port 32, the washing treatment agent is supplied from the detergent supply port 51 so that only the washing treatment agent is not thrown into the washing tub 112.

Water supplied from the first water supply port 32 first flows in the first region 411 of the first water supply chamber 41 in the upper surface of the ceiling portion 4. The water flowing through the first region 411 is injected into the main body 6 through the plurality of first and second water injection holes 431 and 432.

Specifically, the water injected from some of the first water injection holes 431 of the plurality of first water injection holes 431 flows through the first flow channel 631 of the main body 6, and the water injected from the remaining first water injection holes 431 flows through the second flow channel 632 of the main body 6 and merges with the first flow channel 631. Since the plurality of first water injection holes 431 are formed around the detergent hole 44, water can be injected around the portion of the main body 6 to which the detergent treatment agent is supplied from the detergent hole 44. Further, since the number of the first water injection holes 431 is increased in the front, that is, the downstream side of the detergent holes 44, more water is injected into the first flow path 631 on the downstream side of the detergent holes 44. Therefore, the flow rate of the washing treatment agent on the downstream side of the detergent hole 44 of the first flow path 631 is reduced, and even a small amount of water can be sufficiently mixed with the washing treatment agent.

The water injected from the second water injection hole 432 is injected into the upper stage 603 of the main body 6, flows through the second flow path 632, and merges with the first flow path 631.

Further, when the water level of the first region 411 rises due to the water supplied from the first water supply port 32 and exceeds the height of the partition wall 413, the water supplied from the first water supply port 32 is immersed from the first region 411 to the second region 412. The water flowing through the second region 412 is injected into the main body portion 6 from the third and fourth water injection holes 433 and 434.

Specifically, the water injected from the third water injection holes 433 is injected into the rear end portion of the first flow path 631 and flows through the first flow path 631. That is, the water injected from the third water injection hole 433 flows from the rear end of the first flow channel 631 to the front end of the first flow channel 631, and is introduced into the washing tub 112 through the introduction port 62 provided at the front end of the first flow channel 631.

The water injected from the fourth water injection hole 434 is injected into the upper stage 603 of the body 6, flows through the second flow path 632, and merges with the first flow path 631.

Subsequently, a detergent supply port 51 supplies a detergent treatment agent. The cleaning agent supplied from the cleaning agent supply port 51 flows down to the first flow channel 631 of the main body 6 through the cleaning agent hole 44 of the ceiling portion 4. As described above, when the washing treatment agent is supplied to the main body 6, the water flows through the first flow path 631. Therefore, the water is mixed by the washing treatment agent flowing to the first flow path 631 through which the water flows.

In the present embodiment, a plurality of first water injection holes 431 are formed around the detergent hole 44. Therefore, water is injected from the plurality of first water injection holes 431 around the portion of the main body 6 where the washing treatment agent flows down, and therefore, the water and the washing treatment agent are easily mixed together by the momentum of the water injection. Further, since the plurality of first water injection holes 431 are formed to surround the periphery of the detergent hole 44, the water and the detergent are more easily mixed.

Further, a first rib 641 is provided on the side of the inlet 62 with respect to the detergent hole 44, and the flow rate is restricted by the water and the detergent coming into contact with the first rib 641. Accordingly, the mixing time of the water and the detergent in the upstream side of the first channel 631 with respect to the first rib 641 becomes longer, and the water and the detergent are more easily mixed.

Further, the first rib 641 is inclined with respect to the front-rear direction to narrow the first flow path 631. This causes the water and the cleaning agent flowing through the first flow channel 631 to be concentrated, and the flow velocity on the downstream side to increase, so that the cleaning agent is less likely to adhere to the first flow channel 631.

Further, the water and the washing treatment agent flowing through the first channel 631 join the water flowing through the second channel 632 when passing through the first rib 641. When the water flowing through the second rib 642 merges, the water and the cleaning agent in the upstream side of the first rib 641 in the first flow path 631 tend to be blocked, and the water and the cleaning agent are more easily mixed.

Further, since water is injected from a part of the plurality of first water injection holes 431 to a portion where the first flow channel 631 is narrowed by the first rib 641 and a vicinity of a portion where the first flow channel 631 and the second flow channel 632 merge with each other, water and the cleaning agent are easily mixed due to the momentum of the injected water.

Further, a second rib 642 is provided on the inlet 62 side of the first rib 641, and the second rib 642 narrows the second flow path 632 together with the first rib 641. Accordingly, the water flowing through the second flow path 632 is concentrated and the flow rate is increased, so that the potential for the water and the cleaning agent to join with each other flowing through the first flow path 631 is increased, the effect of blocking the water and the cleaning agent on the upstream side of the first flow path 631 with respect to the first rib 641 is improved, and the water and the cleaning agent are more easily mixed. Since the flow rate of the merged water and the cleaning agent increases, the cleaning agent is introduced into the washing tank 112 without adhering to the first flow channel 631 and the inlet 62.

As described above, in the water supply unit 2 of the present embodiment, the water supplied from the first water supply port 32 and the washing treatment agent supplied from the washing agent supply port 51 can be efficiently mixed, and the water and the washing treatment agent can be introduced into the washing tank 112 through the introduction port 62 in a mixed state. Thus, even if a small amount of water is supplied, the adhesion of only the washing treatment agent to the object to be washed is suppressed.

Claims (8)

1. A water supply unit for mixing supplied water with a washing treatment agent and feeding the mixed water into a washing tank, the water supply unit comprising:

a water supply port for supplying the water;

a detergent supply port for supplying the detergent treatment agent;

a main body having an opening at an upper side thereof, the main body having an inlet for introducing the water and the cleaning treatment agent into the washing tank; and

a ceiling portion covering the opening of the main body portion and allowing the water supplied from the water supply port to flow through an upper surface thereof,

the ceiling portion has:

a plurality of water injection holes for injecting the water supplied from the water supply port into the main body; and

a detergent hole which is continuous with the detergent supply port in the vertical direction and allows the detergent treatment agent supplied from the detergent supply port to pass through the main body,

the plurality of water injection holes are formed around the detergent hole.

2. Water supply unit according to claim 1,

the plurality of water injection holes are formed to surround the detergent hole.

3. Water supply unit according to claim 1 or 2,

the plurality of water injection holes are formed around the detergent hole, and are formed in a large number on the inlet side of the main body.

4. Water supply unit according to any one of claims 1-3,

the main body portion has:

a first flow path through which the water supplied from the plurality of water injection holes and the washing treatment agent supplied from the washing agent hole flow toward the inlet; and

and a first rib formed on the inlet side of the detergent hole to narrow the first flow path.

5. Water supply unit according to claim 4,

the first rib is formed so as to narrow the first flow path as the first rib approaches the inlet port.

6. Water supply unit according to claim 4 or 5,

the main body portion has:

a second channel which is a different channel from the first channel and merges with the first channel; and

and a second rib that is formed at a junction that merges with the first channel in the second channel and narrows the second channel.

7. Water supply unit according to claim 6,

the second rib is formed closer to the projection port side than the first rib, and is formed to narrow the second flow path together with the first rib.

8. A washing machine, characterized in that it comprises:

a water supply unit according to any one of claims 1-7; and

and a washing tank into which the water and the washing treatment agent are fed from the water supply unit.

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