CN114150478A

CN114150478A - Microbubble water box and washing equipment with same

Info

Publication number: CN114150478A
Application number: CN202010929921.1A
Authority: CN
Inventors: 赵志强; 许升; 王得军; 张显
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2022-03-08

Abstract

The invention relates to a micro bubble water box and a washing device with the same. The microbubble water box capable of obviously improving the content of microbubbles comprises a box body, a water inlet part, a water outlet part and a throttling hole positioned between the water inlet part and the water outlet part, wherein the water inlet part is provided with a water inlet, the water outlet part is provided with a plug-in room, an air suction groove which extends along the periphery of the plug-in room and is communicated with the plug-in room in an air mode, and a water outlet positioned at the downstream of the plug-in room; an insert configured to be received within an insert chamber, a negative pressure chamber and a mixing chamber located downstream of the negative pressure chamber being provided within the insert, a first end of the insert being located adjacent to the orifice and forming an air intake passage therebetween in air communication with the air suction groove and the negative pressure chamber such that a negative pressure generated within the negative pressure chamber by the water stream throttled by the orifice draws air from the air suction groove into the negative pressure chamber, the air and the water stream mixing within the mixing chamber to form bubble water; and a micro-bubble froth network secured to the second end of the insert and configured to cut bubble water into micro-bubble water that is dischargeable from the water outlet.

Description

Microbubble water box and washing equipment with same

Technical Field

The invention relates to a washing device, in particular to a micro bubble water box and a washing device with the same.

Background

Micro-bubbles (micro-bubbles) generally refer to micro-bubbles having a diameter of fifty micrometers (μm) or less when the bubbles occur. Micro-bubbles may also be referred to as micro-/nano-bubbles, micro-bubbles or nano-bubbles depending on their diameter range. Microbubbles have a relatively long residence time in a liquid because of their small buoyancy in the liquid. Moreover, the microbubbles will shrink in the liquid until finally breaking, generating smaller nanobubbles. In this process, the rise speed of the bubbles becomes slow because they become small, resulting in high melting efficiency. When the microbubbles are broken, high pressure and high temperature heat are locally generated, and thus foreign substances such as organic substances floating in the liquid or adhering to the object can be destroyed. In addition, the contraction process of the microbubbles is accompanied by an increase in negative charge, and the peak state of the negative charge is usually when the diameter of the microbubbles is 1 to 30 μm, so that positively charged foreign substances floating in the liquid are easily adsorbed. The result is that the foreign matter is adsorbed by the microbubbles after it is destroyed by the breaking of the microbubbles, and then slowly floats to the liquid surface. These properties provide the microbubbles with a strong cleaning and purifying power. At present, microbubbles have been widely used in washing apparatuses such as washing machines.

For example, chinese patent CN108396516B discloses a pulsator washing machine having a water injection device disposed in a tray. The water injection device has a connection port connected to a water supply source, a water injection cartridge, and a fine bubble generator disposed between the connection port and the water injection cartridge. Specifically, the fine bubble generator disclosed in CN108396516B has a cylindrical nozzle in which a tapered passage portion with a decreasing diameter, a protrusion portion (forming an orifice), and a mixing chamber (having a diameter larger than that of the orifice and remaining constant) are formed along the water flow direction. After the electromagnetic water supply valve is opened, the water flow from the main water pipe is rapidly depressurized while passing through such a fine bubble generator, so that air in the water flow is precipitated to generate micro-bubbles in the water, thereby forming micro-bubble water. The micro-bubble water enters the washing drum to be used for washing the clothes. However, such a fine bubble generator can generate fine bubbles only by very limited air carried in the liquid flowing therethrough, and thus, the fine bubble generator cannot provide fine bubble water containing a sufficient amount of fine bubbles, resulting in a large space for improving the washing effect, and the remaining detergent may cause a risk to the health of the user.

Accordingly, there is a need in the art for a new solution to the above problems.

Disclosure of Invention

In order to solve the above-mentioned problems in the prior art, that is, to solve the technical problem of low microbubble generation efficiency of the existing water injection device, the present invention provides a microbubble water cartridge, comprising: the box body comprises a water inlet part, a water outlet part and a throttling hole positioned between the water inlet part and the water outlet part, wherein the water inlet part is provided with a water inlet, the water outlet part is provided with a plug-in room, an air suction groove which extends along the periphery of the plug-in room and is communicated with the plug-in room in an air mode, and a water outlet positioned on the downstream of the plug-in room; an insert configured to be received within the insert chamber, a negative pressure chamber and a mixing chamber located downstream of the negative pressure chamber being provided within the insert, a first end of the insert being located proximate to the orifice and forming an air intake passage with the insert chamber in air communication with the air intake slot and the negative pressure chamber such that a negative pressure generated within the negative pressure chamber by a flow of water throttled by the orifice draws air from the air intake slot into the negative pressure chamber, the air and flow of water mixing to form bubble water within the mixing chamber; and a micro-bubble froth network secured to the second end of the insert and configured to cut the bubble water into micro-bubble water that is dischargeable from the water outlet.

In a preferred technical solution of the above-mentioned microbubble water box, the microbubble water box further includes a pressing plate, the pressing plate includes a plate-shaped body and a pressing leg extending outward from an inner side surface of the plate-shaped body, the pressing plate presses the microbubble bubbling net against the second end of the insert through the pressing leg, so that a microbubble water chamber that receives the microbubble water and communicates with the water outlet is formed between the microbubble bubbling net and the plate-shaped body.

In a preferred embodiment of the microbubble water cartridge described above, the pressure leg includes a plurality of pressure legs that are arranged in a ring shape matching the second end of the insert and form a circumferential gap between adjacent pressure legs, and the microbubble water flows from the microbubble water chamber to the water outlet via the circumferential gap.

In a preferred embodiment of the microbubble water cartridge described above, the water outlet portion includes a circumferential outer wall and a circumferential inner wall that surround the insert chamber, the circumferential outer wall is constituted by an upper wall, a lower wall, a left wall, and a right wall, the circumferential inner wall extends in parallel along at least a part of the upper wall, the left wall, and the right wall, and the air suction groove is formed between the circumferential outer wall and the circumferential inner wall and forms air communication with the air intake passage via an air inlet formed on the circumferential inner wall.

In a preferred embodiment of the microbubble water cartridge, a portion of the lower wall near the second end of the insert is radially outwardly enlarged to form the water outlet.

In the preferable technical solution of the above microbubble water box, along the flow direction of the water flow, the inner diameter of the negative pressure chamber is gradually reduced, and the inner diameter of the mixing chamber is gradually enlarged.

In the preferable technical scheme of the micro bubble water box, a plurality of overflow ports are arranged at the second end of the plug-in piece.

In the preferable technical scheme of the micro bubble water box, turbulence ribs are arranged on the inner wall of the negative pressure cavity.

In the preferable technical scheme of the micro bubble water box, the micro bubble foaming net comprises a multi-layer net structure, and the diameter of at least one net hole of each layer of the net structure reaches the micron level.

As can be understood by those skilled in the art, in the technical solution of the microbubble water cartridge of the present invention, the microbubble water cartridge includes a cartridge body, an insert, and a microbubble foaming network. The cassette body has an insert chamber and an air suction groove extending along an outer periphery of the insert chamber and forming air communication therewith. The insert capable of being accommodated in the insert chamber is internally provided with a negative pressure cavity and a mixing cavity located at the downstream of the negative pressure cavity, the first end of the insert is positioned close to the throttling hole, an air inlet channel for communicating air with the air suction groove and the negative pressure cavity is formed between the first end of the insert and the insert chamber, so that negative pressure generated in the negative pressure cavity by water flow throttled by the throttling hole can suck air into the negative pressure cavity from the air suction groove, and the air and the water flow are fully mixed in the mixing cavity to form bubble water. Through the air suction groove and the inlet channel communicated with the air suction groove, a sufficient amount of air from the outside of the microbubble water box can be sucked into the negative pressure cavity, and the sucked air and the water flow are sufficiently mixed through the mixing cavity to provide the microbubble water containing a large amount of air bubbles. The bubble water is cut and mixed by the micro-bubble foaming net to form micro-bubble water containing abundant micro-bubbles. Therefore, the microbubble water box of the invention obviously improves the content of microbubbles in the microbubble water.

Preferably, the water outlet portion includes a circumferential outer wall and a circumferential inner wall surrounding the insert chamber, the circumferential outer wall being constituted by an upper wall, a lower wall, a left wall and a right wall, the circumferential inner wall extending in parallel along at least a part of the upper wall, the left wall and the right wall, the air suction groove being formed between the circumferential outer wall and the circumferential inner wall and being in air communication with the air intake passage via an air inlet formed on the circumferential inner wall. The air suction grooves are arranged between the circumferential outer wall and the circumferential inner wall which are mutually separated and arranged in parallel, and the circumferential inner wall is provided with the air inlet which can be communicated with the negative pressure cavity, so that the air suction grooves with enough size are provided, the blockage of the air suction grooves and the air inlet can be avoided, and the sufficient air can be ensured to smoothly flow into the negative pressure cavity.

Preferably, the microbubble water box further comprises a pressure plate consisting of a plate-shaped body and a pressure leg, the pressure plate presses the microbubble water foaming net against the second end of the insert through the pressure leg, and a microbubble water chamber which receives the microbubble water and is communicated with the water outlet is formed between the microbubble water foaming net and the plate-shaped body. The micro bubble water can be guided to the water outlet through the micro bubble water chamber. Furthermore, the plate-shaped body can serve as an end cap of the water outlet part of the box body.

Preferably, a portion of the lower wall of the outlet portion adjacent the second end of the insert is enlarged radially outwardly to form the outlet. When the micro bubble water box is horizontally arranged, the water outlet inclined downwards is convenient for leading the micro bubble water downwards to a preset position.

Preferably, the inner diameter of the negative pressure chamber is gradually reduced along the flow direction of the water flow to form a tapered chamber, and the inner diameter of the mixing chamber is gradually enlarged to form a tapered chamber. The negative pressure chamber is configured to enhance the intake of air, while the mixing chamber is configured to enhance the mixing of air and water.

Preferably, the turbulence ribs provided on the inner wall of the negative pressure chamber can help the water flow to mix the sucked air more effectively downstream by increasing the turbulence of the water, thereby generating more bubbles in the water.

Preferably, a plurality of overflow ports are provided on the second end of the insert. When the water pressure in the spray pipe is not enough, therefore rivers can't run through little bubble and play the bubble net fast, rivers can follow these overflow mouth and flow, have avoided because of rivers accumulate in the mixing chamber and plug up little bubble and play the bubble net and can't the problem of breathing in to guarantee that little bubble water box continuously produces the high reliability of little bubble water.

Preferably, the micro-bubble foaming net is a multi-layer net structure, and the diameter of the micro-bubbles can be obviously reduced and the mixing degree of the micro-bubbles and water can be increased by matching with micro-pores on each layer of net structure.

In order to solve the above-mentioned problems in the prior art, i.e. to solve the technical problems that the washing effect of the prior washing device is poor and the residual detergent may cause a risk to the health of the user, the present invention also provides a washing device comprising any one of the micro bubble water cartridges as described above, which is disposed inside the washing device to supply micro bubble water to the washing device. The micro-bubble water is sprayed into the washing equipment, so that the washing capacity of the washing equipment can be improved, and meanwhile, the using amount of the washing treatment agent can be saved, and the health of a user is facilitated.

Drawings

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

fig. 1 is a schematic perspective view of an embodiment of a microbubble water cartridge of the present invention;

fig. 2 is a front view of the embodiment of the microbubble water cartridge of the present invention shown in fig. 1;

fig. 3 is a sectional view of an embodiment of the microbubble water cartridge of the present invention taken along the section line a-a of fig. 2;

fig. 4 is a cross-sectional view of an embodiment of the microbubble water cartridge of the present invention taken along section line B-B of fig. 2;

fig. 5 is a first perspective view of an embodiment of an insert of the microbubble water cartridge of the present invention;

fig. 6 is a second perspective view of an embodiment of an insert of the microbubble water cartridge of the present invention;

fig. 7 is a schematic perspective view of an embodiment of a platen of the microbubble water cartridge of the present invention;

FIG. 8 is a schematic structural view of an embodiment of the washing apparatus of the present invention;

fig. 9 is a partially enlarged schematic view of the embodiment of the washing apparatus of the present invention shown in fig. 8.

List of reference numerals:

1. a pulsator washing machine; 11. a box body; 12. a tray seat; 13; an upper cover; 14. ground feet; 21. an outer tub; 31. an inner barrel; 311. a dewatering hole; 32. an impeller; 33. a drive shaft; 34. a motor; 35. a balance ring; 41. a drain valve; 42. a drain pipe; 5. a microbubble water box; 51. a box body; 511. a water inlet part; 111. a water inlet; 112. a pressurizing channel; 113. a straight channel; 512. a radial wall; 512a, a conical boss; 513. an orifice; 514. a water outlet part; 141. a circumferential outer wall; 141a, an upper wall; 141b, lower wall; 141c, left wall; 141d, right wall; 142. a circumferential inner wall; 142a, an inner upper wall; 142b, an inner left wall; 142c, an inner right wall; 143. a suction groove; 144. a rib wall; 145. an air inlet; 146. a card compartment; 147. a water outlet; 148. reinforcing ribs; 149. a mesh groove; 515. a microbubble water chamber; 516. an air intake passage; 52. pressing a plate; 521. a plate-like body; 521a, an inner side surface; 521b, an upper edge; 521c, lower edge; 522. pressing legs; 522a, a first press leg; 522b, a second press leg; 523. a circumferential gap; 524. a fixing hole; 525. a sleeve; 53. a plug-in; 531. a negative pressure chamber; 532. a mixing chamber; 533. a sealing groove; 534. a seal ring; 535. an overflow port; 536. a transition hole; 537. a straight barrel mixing chamber; 538. a turbulence rib; 539a, a first end; 539b, second end; 54. a micro-bubble bubbling net; 61. a water inlet valve; 62. and (4) a water inlet pipe.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

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

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through the 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.

In order to solve the technical problem that the microbubble generation rate of the existing water injection box is not high, the invention provides a microbubble water box 5. This microbubble water box 5 includes: a box body 51 including a water inlet portion 511, a water outlet portion 514, and an orifice 513 between the water inlet portion 511 and the water outlet portion 514, the water inlet portion 511 being provided with a water inlet 111, the water outlet portion 514 being provided with a card chamber 146, an air suction groove 143 extending along the outer periphery of the card chamber 146 and forming air communication therewith, and a water outlet 147 located downstream of the card chamber 146; an insert 53 configured to be received in the insert chamber 146, a negative pressure chamber 531 and a mixing chamber 532 located downstream of the negative pressure chamber 531 being provided in the insert 53, a first end 539a of the insert 53 being located adjacent to the orifice 513 and forming an air intake passage 516 communicating the air suction groove 143 and the negative pressure chamber 531 with the insert chamber 146, such that a negative pressure generated in the negative pressure chamber 531 by the water flow throttled by the orifice 513 can suck air from the air suction groove 143 into the negative pressure chamber 531, the air and the water flow being mixed to form bubble water in the mixing chamber 532; and a micro-bubble froth screen 54 secured to the second end 539b of the insert 53 and configured to cut bubble water into micro-bubble water that is dischargeable from the water outlet 147. The design of the air suction groove 143 provides a very smooth air flow path for the micro bubble water box 5, and the micro bubble water box 5 can thus suck a large amount of ambient air from the outside, thereby enabling generation of bubble water containing a large amount of bubbles, which is then cut and mixed via the micro bubble bubbling net 54 to form micro bubble water containing a large amount of micro bubbles.

References herein to "upstream" and "downstream" are made with respect to the direction of water flow C shown in the drawings of the specification unless specifically indicated to the contrary. The "upper wall", "lower wall", "left wall", and "right wall" mentioned herein are all for the case where the microbubble water cartridge of the present invention is placed horizontally and viewed from the side of the outlet portion.

Fig. 1 is a schematic perspective view of an embodiment of a microbubble water cartridge of the present invention, fig. 2 is a front view of the embodiment of the microbubble water cartridge of the present invention shown in fig. 1, fig. 3 is a sectional view of the embodiment of the microbubble water cartridge of the present invention taken along a section line a-a of fig. 2, and fig. 4 is a sectional view of the embodiment of the microbubble water cartridge of the present invention taken along a section line B-B of fig. 2. As shown in fig. 1-4, in one or more embodiments, the microbubble water cartridge 5 includes a cartridge body 51, an insert 53 received in the cartridge body 51, a microbubble bubble screen 54, and a pressure plate 52 securing the microbubble bubble screen 54 to a second end 539b of the insert 53. Alternatively, the micro-bubble blister web 54 may be secured to the second end 539b of the insert 53 by other suitable means, such as a compression ring or the like.

As shown in fig. 3 and 4, the box body 51 includes a water inlet portion 511, a water outlet portion 514, and an orifice 513 between the water inlet portion 511 and the water outlet portion 514. The water inlet portion 511 is integral with the water outlet portion 514 and shares a radial wall 512. In one or more embodiments, the orifice 513 is formed in a central location of the radial wall 512. Preferably, a tapered boss 512a, which surrounds the orifice 513 and slightly protrudes downstream, is formed on the radial wall 512, and the outer diameter of the tapered boss gradually decreases in the water flow direction C. Alternatively, the orifice 513 may be formed in the water inlet portion 511.

In one or more embodiments, the water inlet 511 is substantially cylindrical. As shown in fig. 3 and 4, a water inlet 111 is formed on an outer end of the water inlet portion 511, and the water inlet portion 511 is connectable to an external water source, such as tap water, through the outer end. Alternatively, the water inlet 511 may take other suitable shapes, such as a water inlet with an oval cross-section. In one or more embodiments, a straight passage 113 and a pressurizing passage 112 are formed in the water inlet portion 511, respectively. By "straight channel" is meant a channel whose diameter remains constant along its extended length. As shown in fig. 3, the straight passage 113 extends from the water inlet 111 to the pressurizing passage 112, and the pressurizing passage 112 extends from the straight passage 113 to the orifice 513 in the water flow direction C. The diameter of the straight channel 113 remains constant along its extended length. The diameter of the pressurizing passage 112 is gradually reduced along the water flow direction C to form a tapered passage. The tapered passageway pressurizes the water flowing through it, which is then rapidly expanded downstream through orifice 513 and creates a large negative pressure. Alternatively, a straight passage is omitted in the water inlet portion 511, so that the pressurizing passage 112 may extend from the water inlet 111 up to the orifice 513.

As shown in fig. 3 and 4, the water outlet portion 514 includes the cartridge chamber 146, an air suction groove 143 extending along the outer periphery of the cartridge chamber 146 and forming air communication therewith, and a water outlet 147 located downstream of the cartridge chamber 146. Upstream of the insert chamber 146, it communicates directly with a throttle 513. The insert chamber 146 is substantially circular in cross-section perpendicular to the water flow direction C. In one or more embodiments, the outlet portion 514 is a generally hollow box-like structure having an upstream end, a downstream end, and four sides between the upstream and downstream ends. The upstream end is connected to the water inlet portion 511, and the downstream end is an open opening. The insert chamber 146 extends between an upstream end and a downstream end. As shown in fig. 1 and 2, an upper wall 141a, a lower wall 141b, a left wall 141c, and a right wall 141d are formed on four side surfaces of the spout portion 514. The upper wall 141a, the lower wall 141b, the left wall 141c, and the right wall 141d together constitute a circumferential outer wall 141. The circumferential outer wall 141 circumferentially surrounds the entire insert chamber 146. As shown in fig. 3 and 4, in one or more embodiments, the portion of the lower wall 141b near the downstream end of the water outlet portion 514 gradually expands downward (relative to the orientation shown in fig. 3) in the radial direction, and the water outlet 147 is formed by the space enclosed by the expanded portion. To increase the strength of the enlarged portion, a plurality of reinforcing ribs 148 are provided spaced apart from each other and extending substantially in parallel. These ribs 148 extend in substantially the same direction as the water flow leaving the microbubble water box and thus also act as guides for the direction of the water flow. Alternatively, other forms of water outlets may be formed on the downstream open end of the water outlet portion 514. As shown in fig. 1 and 2, in one or more embodiments, a circumferential inner wall 142 is also formed between the circumferential outer wall 141 and the insert chamber 146. The circumferential inner wall 142 is substantially parallel to the circumferential outer wall 141 and forms a gap with a predetermined distance therebetween, which constitutes the suction groove 143. The air suction groove 143 is completely open toward the downstream end of the water discharge portion 514, thereby allowing the external air to freely enter the air suction groove 143 by a sufficient amount. Accordingly, an air inlet 145 is provided through the circumferential inner wall 142 at a portion of the circumferential inner wall 142 at the upstream end of the water outlet portion 514, so that air communication can be established between the insert chamber 146 and the air suction groove 143. The air inlet 145 may be one or more circular holes or may be an appropriately sized slot. As shown in fig. 1 and 2, in one or more embodiments, the circumferential inner wall 142 extends along the upper wall 141a, the left wall 141c, and the right wall 141d, respectively, of the circumferential outer wall 141. Accordingly, the circumferential inner wall 142 includes an inner upper wall 142a parallel to the upper wall 141a, an inner left wall 142b parallel to the left wall 141c, and an inner right wall 142c parallel to the right wall 141 d. Therefore, the suction groove 143 is a substantially U-shaped ring groove. In order to increase the strength of the water outlet portion 514 and prevent the deformation of the circumferential outer wall 141, a plurality of rib walls 144 are provided between the circumferential outer wall 141 and the circumferential inner wall 142 at a distance from each other. Alternatively, the circumferential inner wall 142 extends only along the upper wall 141a, thus forming only a "one" shaped suction slot 143 between the upper wall 141a and the inner upper wall 142 a; alternatively, the circumferential inner wall 142 extends along the upper and left

walls

141a and 141c, and thus an "L" -shaped suction groove 143 is formed between the upper and left

walls

141a and 141c and the inner upper and left

walls

142a and 142 b. Similarly, the circumferential inner wall 142 extends along the upper and

right walls

141a and 141d, and thus an "L" -shaped suction groove 143 is formed between the upper and

right walls

141a and 141d and the inner upper and

right walls

142a and 142 c.

Fig. 5 is a first perspective view of an embodiment of an insert of the microbubble water cartridge of the present invention, and fig. 6 is a second perspective view of the embodiment of the insert of the microbubble water cartridge of the present invention. As shown in fig. 5 and 6, the insert 53 is a generally cylindrical structure that mates with the insert chamber 146. The insert 53 has a first end 539a and a second end 539 b. As shown in fig. 3 and 4, in a state where the insert 53 is fitted into the insert chamber 146, the first end 539a of the insert 53 is placed in the upstream end of the water outlet portion 514, thus being close to the orifice 513 and the air inlet 145. The first end 539a of the insert 53 may abut against the tapered boss 512a of the radial wall 512, thus forming a gap between the first end 539a and the insert pocket 146, which gap is in communication with the air inlet 145 and thus also in air communication with the air suction groove 143, thus constituting the air inlet passage 516. In one or more embodiments, as shown in fig. 3 and 4, an annular seal groove 533 is also provided on the outer circumferential wall of the insert 53 proximate the first end 539a, the seal groove 533 configured to receive a seal ring 534 to form a fluid-tight seal between the insert 53 and the inner wall of the insert chamber 146. As shown in fig. 3 to 6, a negative pressure chamber 531, a transition hole 536, a mixing chamber 532, and a straight-tube mixing chamber 537 are formed in the interior of the insert 53 along the center line of the insert 53 from the first end 539a to the second end 539b in this order. In the assembled state of the micro bubble water cartridge 5, the negative pressure chamber 531 is located downstream of the orifice 513 and directly communicates with the orifice 513. Tapered boss 512a on radial wall 512 enters the upstream end of suction cavity 531 and is captured thereon, thereby maintaining air inlet passage 516 between upstream end 539a of insert 53 and insert pocket 146. In one or more embodiments, the diameter of the negative pressure chamber 531 is tapered along the water flow direction C such that the negative pressure chamber 531 forms a tapered chamber with a tapered diameter. Such a tapered diameter chamber may enhance the intake of air, allowing more ambient air to enter the negative pressure chamber 531. The mixing chamber 532 communicates with the sub-pressure chamber 531 through a transition hole 536. The diameter of the transition hole 536 is about the same as the minimum diameter of the sub-pressure chamber 531. In one or more embodiments, the diameter of the mixing chamber 532 increases gradually along the water flow direction C such that the mixing chamber 532 forms a tapered chamber with a gradually expanding diameter. Downstream of this tapered chamber of increasing diameter, an additional mixing chamber with the largest diameter of the tapered chamber is also formed, called the straight-barrel mixing chamber 537, allowing for thorough mixing of the air and water streams. Alternatively, the straight mixing chamber 537 may be eliminated in the insert 53. As shown in fig. 6, a plurality of overflow ports 535 are provided at the second end 539b of the insert 53. These overflow openings 535 are distributed over the annular end surface of the second end 539b and are spaced apart from each other by a predetermined distance. The distances between adjacent overflow ports 535 may be the same or different according to actual needs. In the event of insufficient water pressure, the water flow may not quickly penetrate the micro-bubble froth network 54 and thus may accumulate in the mixing chamber. These overflow ports allow the water flow to flow out therethrough, so that the micro bubble bubbling net 54 can be prevented from being blocked due to the accumulation of the water flow in the mixing chamber, thereby ensuring high reliability of the micro bubble water continuously generated by the micro bubble water box 5.

As shown in FIG. 6, in one or more embodiments, a plurality of turbulator ribs 538 are formed on the inner wall of the suction chamber 531 of the insert 53. These turbulence ribs 538 are spaced apart from each other and extend in the longitudinal direction of the negative pressure chamber 531. These turbulators 538 increase turbulence of the water flow, thereby helping the water flow to more effectively mix the air being drawn downstream. Alternatively, the turbulator ribs may be replaced by at least one radial protrusion, such as one or more cylindrical protrusions, provided on the inner wall of the suction chamber. Alternatively, other forms of turbulators may be formed on the interior wall of the suction chamber.

As shown in fig. 3 and 4, the micro-bubble blister web 54 is secured to the second end 539b of the insert 53 by the pressure plate 52. The micro-bubble blister web 54 completely covers the second end of the insert 53 and beyond the outer perimeter of the second end. Accordingly, an annular mesh groove 149 is formed in the inner wall of the insert chamber 146 at a corresponding location such that a portion of the micro-bubble froth mesh 54 beyond the outer periphery of the second end of the insert 53 may extend into the mesh groove 149. In one or more embodiments, the micro-bubble blister web 54 comprises a multi-layer web structure, such as two, three, or more layers. Each layer of net structure has at least one net hole with diameter up to micron level. Preferably, the diameter of the mesh is 0-1000 microns; more preferably, the diameter of the mesh is between 5 and 500 microns. The screen may be a plastic fence, a metal mesh, a mesh of polymeric material, or other suitable mesh structure. The plastic fence is generally a polymer fence, which is formed by integrally injection molding a polymer material, or by first forming a sheet from a polymer material and then machining the sheet to form a microporous structure. The polymer material net is usually a net having a microporous structure formed by weaving a polymer material into filaments. The polymer material net may include nylon net, cotton net, polyester net, polypropylene net, etc. Alternatively, the mesh structure may be other mesh structures capable of generating micro bubbles, for example, a mesh structure composed of two non-micron-sized honeycomb structures. When the bubble water flows through the mesh structure, the mesh structure produces mixing and cutting effects on the bubble water, thereby producing a large amount of micro-bubble water.

Fig. 7 is a schematic perspective view of an embodiment of a pressure plate of the microbubble water box of the present invention. As shown in fig. 7, in one or more embodiments, the pressure plate 52 has a plate-shaped body 521 and pressure legs 522 extending outwardly from an inner side surface 521a of the plate-shaped body 521. In the assembled state of the microbubble water cartridge 5, the inner side surface 521a of the plate-like body 521 faces the microbubble bubble net 54, and is therefore referred to as "inner side surface". Accordingly, the side of the plate-like body 521 facing away from the microbubble foaming web 54 is referred to as an outer side (not labeled in the figures). The plate-like body 521 also has an upper edge 521b and a lower edge 521 c. In the assembled state of the microbubble water cartridge 5, the plate-like body 521 substantially covers the downstream end of the water outlet portion 514, the upper edge 521b of the plate-like body 521 is adjacent to the upper wall 141a of the circumferential outer wall 141, and the lower edge 521c of the plate-like body 521 is adjacent to the lower wall 141b of the circumferential outer wall 141 and the water outlet 147. Therefore, the plate-like body 521 can serve as a downstream end cover of the water discharge portion 514, and only the water gap 147 and the suction groove 143 need to be exposed. Alternatively, the lower edge 521c of the plate-shaped body 521 may be formed in a substantially arc shape, and in the assembled state of the microbubble water cartridge 5, the lower edge 521c is bent inward so as to form a relatively smooth surface on the outside thereof. In one or more embodiments, as shown in FIG. 7, the pressure plate 52 is secured to the outlet portion 514 of the cartridge body 51 by screws or bolts. Accordingly, two fixing holes 524 are formed on the plate-shaped body 521. The two fixing holes 524 are distributed on the left and right sides of the plate-shaped body 521, and are spaced apart by a distance exceeding the maximum outer diameter of the card cage 146 to avoid interference with the card cage 146. Screws or bolts may extend through the securing holes 524 to secure the pressure plate 52 to the outlet portion 514. In one or more embodiments, an outwardly protruding sleeve 525 is formed on the inner side surface 521a of the plate-shaped body 521 around each fixing hole 524, respectively. Corresponding structures are formed on the outlet portion 514 that can be inserted into the sleeve 525 or fit over the sleeve 525. Thus, the sleeve 525 also serves as a guide when installed. Alternatively, the pressure plate 52 may be secured with the outlet portion 514 in other suitable manners, such as by a snap-fit arrangement. The pressing plate 52 not only has the function of fixing the micro-bubble bubbling net 54, but also has the function of retaining water, and the splashing of the water jet is avoided.

As shown in fig. 7, in one or more embodiments, the press legs 522 include a plurality of press legs arranged in a ring shape corresponding to the end surface of the second end 539b of the insert 53, such that the pressure plate 52 may press the microbubble bubbler 54 against the end surface of the second end 539b of the insert 53 via the press legs. By these legs, a microbubble water chamber 515 capable of receiving microbubble water is formed between the plate-like body 521 and the microbubble foaming net 54. Circumferential gaps 523 are formed between adjacent pressure legs to allow micro bubble water to flow from the micro bubble water chamber 515 to the water outlet 147 via the circumferential gaps 523. As shown in fig. 7, in one or more embodiments, the plurality of press legs 522 includes a first press leg 522a and a plurality of second press legs 522 b. The width of the first press leg 522a is larger than each of the second press legs 522b in the circumferential direction. The first press leg 522a having a relatively large width may perform positioning and aligning functions when the microbubble water cartridge 5 is assembled. Alternatively, the press leg 522 may form a cylindrical structure that can be end-fitted to the second end 539b of the insert 53, and a large opening that can be aligned with the water outlet is provided in a sidewall of the cylindrical structure to allow micro bubble water to flow from the micro bubble water chamber 515 into the water outlet 147.

When the microbubble water cartridge 5 is operated, water from an external water source enters the water inlet portion 511 from the water inlet 111, and water flows in the water flow direction C, is pressurized by the pressurizing passage 112, expands through the orifice 513, and is injected into the negative pressure chamber 531 and generates a negative pressure in the negative pressure chamber. Under the negative pressure, a large amount of outside air is sucked from the suction groove 143 into the negative pressure chamber 531 via the air inlet 145 and the air inlet passage 516. The air then flows into the mixing chamber 532 with the water stream and is more thoroughly mixed therein to produce bubble water. The bubble water then flows to the microbubble bubbler 54 and is cut and further mixed by the microbubble bubbler 54 to form microbubble water containing a large amount of microbubbles. The microbubble water flows from the microbubble water chamber 515 to the water outlet 147.

The present invention also provides a washing apparatus including the microbubble water cartridge 5 of the present invention. The micro bubble water cartridge 5 is disposed within the washing apparatus to supply micro bubble water. By the micro bubble water box, the washing capacity of the washing equipment can be improved, the using amount of the washing treatment agent can be reduced, the residual amount of the washing treatment agent in clothes can be reduced, and therefore, the micro bubble water box is not only beneficial to the health of a user, but also can improve the experience of the user.

Fig. 8 is a schematic structural view of an embodiment of the washing apparatus of the present invention, and fig. 9 is a partially enlarged schematic view of the embodiment of the washing apparatus of the present invention shown in fig. 8. In this embodiment, the washing apparatus is a pulsator washing machine 1. Alternatively, in other embodiments, the washing apparatus may be a drum washing machine or a dryer, etc.

As shown in fig. 8 and 9, the pulsator washing machine 1 (hereinafter, referred to as a washing machine) includes a cabinet 11. Feet 14 are provided at the bottom of the case 11. The upper part of the box body 11 is provided with a tray 12, and the tray 12 is pivotally connected with an upper cover 13. An outer tub 21 as a tub is provided in the cabinet 11. An inner barrel 31 is arranged in the outer barrel 21, the bottom of the inner barrel 31 is provided with a wave wheel 32, the lower part of the outer barrel 21 is fixed with a motor 34, the motor 34 is in driving connection with the wave wheel 32 through a transmission shaft 33, and the side wall of the inner barrel 31 is provided with a dewatering hole 311. The drain valve 41 is provided on the drain pipe 42, and an upstream end of the drain pipe 42 communicates with the bottom of the outer tub 21. The washing machine further comprises a water inlet valve 61, a water inlet pipe 62 with one end connected with the water inlet valve 61, and a micro bubble water box 5 connected with the other end of the water inlet pipe 62. The microbubble water cartridge 5 is mounted on the tray 12. The micro bubble water tank 5 may be any of the micro bubble water tanks described above. Water from a water source (e.g., tap water or recycled water) enters the micro bubble water tank 5 via the water inlet valve 61 and the water inlet pipe 62, and micro bubble water is generated by the micro bubble water tank 5, which is then sprayed into the outer tub 21 and/or the inner tub 31 for laundry washing. The micro-bubbles in the water impact the washing treatment agent in the crushing process, and the micro-bubbles can adsorb the washing treatment agent through the carried negative charges, so that the micro-bubbles can increase the mixing degree of the washing treatment agent and the water, thereby reducing the using amount of the washing treatment agent and reducing the residual amount of the washing treatment agent on the clothes. In addition, the micro bubbles may also hit dirt on the laundry in the inner tub 31 and may adsorb foreign substances that generate the dirt. Therefore, the micro bubbles enhance the detergency performance of the washing machine.

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. Without departing from the principle of the invention, a person skilled in the art may combine technical features from different embodiments, and may make equivalent changes or substitutions for related technical features, and such changes or substitutions will fall within the scope of the invention.

Claims

1. A microbubble water cartridge, comprising:

the box body comprises a water inlet part, a water outlet part and a throttling hole positioned between the water inlet part and the water outlet part, wherein the water inlet part is provided with a water inlet, the water outlet part is provided with a plug-in room, an air suction groove which extends along the periphery of the plug-in room and is communicated with the plug-in room in an air mode, and a water outlet positioned on the downstream of the plug-in room;

an insert configured to be received within the insert chamber, a negative pressure chamber and a mixing chamber located downstream of the negative pressure chamber being provided within the insert, a first end of the insert being located proximate to the orifice and forming an air intake passage with the insert chamber in air communication with the air intake slot and the negative pressure chamber such that a negative pressure generated within the negative pressure chamber by a flow of water throttled by the orifice draws air from the air intake slot into the negative pressure chamber, the air and flow of water mixing to form bubble water within the mixing chamber; and

a micro-bubble bubbling net secured to the second end of the insert and configured to cut the bubble water into micro-bubble water that is dischargeable from the water outlet.

2. The microbubble water cartridge of claim 1, further comprising a pressure plate, the pressure plate comprising a plate-shaped body and a pressure leg extending outwardly from an inner side of the plate-shaped body, the pressure plate pressing the microbubble bubble screen against the second end of the insert via the pressure leg such that a microbubble water chamber is formed between the microbubble bubble screen and the plate-shaped body that receives the microbubble water and communicates with the water outlet.

3. The microbubble water cartridge of claim 2, wherein the press leg comprises a plurality of press legs arranged in a ring shape matching the second end of the insert and forming a circumferential gap between adjacent ones of the press legs, the microbubble water flowing from the microbubble water chamber to the water outlet via the circumferential gap.

4. A microbubble water cartridge according to any one of claims 1 to 3, wherein the water outlet portion includes a circumferential outer wall and a circumferential inner wall that surround the insert chamber, the circumferential outer wall being constituted by an upper wall, a lower wall, a left wall and a right wall, the circumferential inner wall extending in parallel along at least a part of the upper wall, the left wall and the right wall, the air suction groove being formed between the circumferential outer wall and the circumferential inner wall and being in air communication with the air intake passage via an air inlet formed on the circumferential inner wall.

5. The microbubble water cartridge of claim 4, wherein a portion of the lower wall near the second end of the insert is radially outwardly enlarged to form the water outlet.

6. A microbubble water cartridge according to any one of claims 1 to 3, wherein an inner diameter of the negative pressure chamber is gradually reduced and an inner diameter of the mixing chamber is gradually enlarged in a flow direction of the water flow.

7. A microbubble water cartridge according to any one of claims 1 to 3, wherein a plurality of overflow ports are provided on the second end of the insert.

8. A microbubble water cartridge according to any one of claims 1 to 3, wherein turbulence ribs are provided on an inner wall of the negative pressure chamber.

9. A micro bubble water cartridge according to any one of claims 1 to 3, wherein the micro bubble bubbling net comprises a multi-layer net structure, each layer of the net structure having at least one mesh hole with a diameter up to the micrometer scale.

10. A washing apparatus, characterized in that the washing apparatus comprises a microbubble water cartridge according to claims 1-9, the microbubble water cartridge being arranged on the washing apparatus to provide microbubble water to the washing apparatus.