Micro bubble water box and washing equipment having the same

Abstract

The present invention relates to a microbubble water box and a washing device having the same. The microbubble water box capable of significantly increasing the microbubble content comprises a box body, which comprises a water inlet, a water outlet, and a throttle hole located between the two, the water inlet is provided with a water inlet, the water outlet is provided with a plug-in chamber, an air suction groove extending along the periphery of the plug-in chamber and forming air communication therewith, and a water outlet located downstream of the plug-in chamber; a plug-in configured to be accommodated in the plug-in chamber, a negative pressure chamber and a mixing chamber located downstream of the negative pressure chamber are provided in the plug-in, a first end of the plug-in is positioned close to the throttle hole and an air inlet channel connecting the air suction groove and the negative pressure chamber is formed between the plug-in chamber, so that the negative pressure generated by the water flow after throttling by the throttle hole in the negative pressure chamber can suck air from the air suction groove into the negative pressure chamber, and the air and the water flow are mixed in the mixing chamber to form bubble water; and a microbubble bubbling net, which is fixed on the second end of the plug-in and configured to cut the bubble water into microbubble water that can be discharged from the water outlet.

Description

Technical Field

[0001] The invention relates to washing equipment, in particular to a micro bubble water box and a washing equipment having the same. Background Art

[0002] Microbubbles usually refer to tiny bubbles with a diameter of less than 50 microns (μm) when bubbles occur. Microbubbles can also be called micro / nano-bubbles, micron bubbles or nano-bubbles according to their diameter range. Microbubbles have low buoyancy in liquids, so they stay in liquids for a long time. In addition, microbubbles shrink in liquids until they finally break, generating smaller nanobubbles. In this process, the bubbles become smaller, so their rising speed becomes slow, resulting in high melting efficiency. When microbubbles break, high pressure and high temperature heat are generated locally, which can destroy foreign matter such as organic matter floating in the liquid or attached to objects. In addition, the contraction process of microbubbles is also accompanied by an increase in negative charge. The peak state of negative charge is usually when the diameter of the microbubble is 1-30 microns, so it is easy to adsorb positively charged foreign matter floating in the liquid. The result is that the foreign matter will be adsorbed by the microbubbles after it is destroyed by the breaking of the microbubbles, and then slowly float to the surface of the liquid. These characteristics make microbubbles have strong cleaning and purification capabilities. At present, microbubbles have been widely used in washing machines and other washing equipment.

[0003] For example, Chinese invention patent CN108396516B discloses a pulsator washing machine having a water injection device arranged in a disc seat. The water injection device has a connection port connected to a water supply source, a water injection box, and a micro-bubble generator arranged between the connection port and the water injection box. Specifically, the micro-bubble generator disclosed in CN108396516B has a cylindrical nozzle, and a conical channel portion with a reduced diameter, a protrusion (forming a throttling hole) and a mixing chamber (the diameter is larger than the diameter of the throttling hole and remains unchanged) are formed in the nozzle along the direction of water flow. After the electromagnetic water supply valve is opened, the water flow from the main water pipe is rapidly depressurized when flowing through this micro-bubble generator, so that the air in the water flow is precipitated and micro-bubbles are generated in the water, thereby forming micro-bubble water. The micro-bubble water enters the washing drum and is used for washing clothes. However, this micro-bubble generator can only rely on the very limited air carried by the liquid flowing through it to generate micro-bubbles. Therefore, the micro-bubble generator cannot provide micro-bubble water containing enough micro-bubbles, resulting in that the cleaning effect still has a lot of room for improvement, and the residual detergent may pose a hidden danger to the user's health.

[0004] Accordingly, the art needs a new technical solution to solve the above problems. Summary of the invention

[0005] In order to solve the above-mentioned problems in the prior art, that is, to solve the technical problem that the microbubble generation efficiency of the existing water injection device is not high, the present invention provides a microbubble water box, the microbubble water box comprising: a box body, which includes a water inlet, a water outlet, and a throttling hole located between the water inlet and the water outlet, the water inlet is provided with a water inlet, the water outlet is provided with a plug-in chamber, an air suction groove extending along the outer periphery of the plug-in chamber and forming air communication with the plug-in chamber, and a water outlet located downstream of the plug-in chamber; a plug-in configured to be accommodated in the plug-in chamber, and a plug-in in the plug-in A negative pressure chamber and a mixing chamber located downstream of the negative pressure chamber are provided, the first end of the plug-in is positioned close to the throttling hole and an air inlet channel is formed between the first end of the plug-in and the plug-in chamber, connecting the air suction groove and the negative pressure chamber, so that the negative pressure generated in the negative pressure chamber by the water flow throttled by the throttling hole can suck air from the air suction groove into the negative pressure chamber, and the air and water flow are mixed in the mixing chamber to form bubble water; and a micro-bubble bubbling net, which is fixed on the second end of the plug-in and is configured to cut the bubble water into micro-bubble water that can be discharged from the water outlet.

[0006] In the preferred technical solution of the above-mentioned microbubble water box, the microbubble water box also includes a pressure plate, which includes a plate-like body and a pressure leg extending outward from the inner side of the plate-like body, and the pressure plate presses the microbubble bubbling net against the second end of the plug-in through the pressure leg, so that a microbubble water chamber that receives the microbubble water and is connected to the water outlet is formed between the microbubble bubbling net and the plate-like body.

[0007] In the preferred technical solution of the above-mentioned microbubble water box, the pressure leg includes a plurality of pressure legs, and the plurality of pressure legs are arranged in a ring shape matching the second end of the plug-in and a circumferential gap is formed between adjacent pressure legs, and the microbubble water flows from the microbubble water chamber to the water outlet via the circumferential gap.

[0008] In the preferred technical solution of the above-mentioned microbubble water box, the water outlet portion includes a circumferential outer wall and a circumferential inner wall surrounding the plug-in chamber, the circumferential outer wall is composed of an upper wall, a lower wall, a left wall and a right wall, the circumferential inner wall extends parallel to at least a portion of the upper wall, the left wall and the right wall, the air suction groove is formed between the circumferential outer wall and the circumferential inner wall and forms air communication with the air inlet channel via an air inlet formed on the circumferential inner wall.

[0009] In the preferred technical solution of the above-mentioned microbubble water box, a portion of the lower wall close to the second end of the plug-in is radially expanded outward to form the water outlet.

[0010] In the preferred technical solution of the above-mentioned microbubble water box, along the flow direction of the water flow, the inner diameter of the negative pressure chamber gradually decreases, and the inner diameter of the mixing chamber gradually increases.

[0011] In the preferred technical solution of the above-mentioned micro bubble water box, a plurality of overflow ports are provided on the second end of the plug-in.

[0012] In the preferred technical solution of the above-mentioned micro-bubble water box, a spoiler rib is provided on the inner wall of the negative pressure chamber.

[0013] In the preferred technical solution of the above-mentioned microbubble water box, the microbubble bubbling net includes a multi-layer net structure, and each layer of the net structure has at least one mesh hole with a diameter reaching the micron level.

[0014] It can be understood by those skilled in the art that in the technical scheme of the microbubble water box of the present invention, the microbubble water box includes a box body, a plug-in, and a microbubble bubbling net. A plug-in chamber and an air suction groove extending along the periphery of the plug-in chamber and forming air communication therewith are formed on the box body. A negative pressure chamber and a mixing chamber located downstream of the negative pressure chamber are provided in the plug-in chamber that can be accommodated in the plug-in chamber, and the first end of the plug-in is positioned close to the throttle hole and an air inlet channel connecting the air suction groove and the negative pressure chamber with the plug-in chamber is formed, so that the negative pressure generated by the water flow after throttling by the throttle hole in the negative pressure chamber can suck air from the air suction groove into the negative pressure chamber, and the air and the water flow are fully mixed in the mixing chamber to form bubble water. Through the air suction groove and the inlet channel connected with the air, sufficient air from the outside of the microbubble water box can be sucked into the negative pressure chamber, and the inhaled air and the water flow are fully mixed through the mixing chamber to provide bubble water containing a large number of bubbles. The bubble water is cut and mixed by the microbubble bubbling net to form microbubble water rich in microbubbles. Therefore, the microbubble water box of the present invention significantly increases the microbubble content in the microbubble water.

[0015] Preferably, the water outlet portion includes a circumferential outer wall and a circumferential inner wall surrounding the plug-in chamber, the circumferential outer wall is composed of an upper wall, a lower wall, a left wall and a right wall, the circumferential inner wall extends in parallel along at least a portion of the upper wall, the left wall and the right wall, the air suction groove is formed between the circumferential outer wall and the circumferential inner wall and is connected to the air inlet channel via an air inlet formed on the circumferential inner wall. The air suction groove is arranged between the circumferential outer wall and the circumferential inner wall which are spaced apart and arranged in parallel, and an air inlet which can be connected to the negative pressure chamber is provided on the circumferential inner wall, which not only provides a sufficiently large air suction groove, but also avoids the air suction groove and the air inlet from being blocked, thereby ensuring that sufficient air can flow smoothly into the negative pressure chamber.

[0016] Preferably, the microbubble water box further comprises a pressing plate composed of a plate-like body and a pressing leg, wherein the pressing plate presses the microbubble bubbling net against the second end of the plug-in through the pressing leg, and forms a microbubble water chamber between the microbubble bubbling net and the plate-like body for receiving microbubble water and communicating with the water outlet. The microbubble water can be guided to the water outlet through the microbubble water chamber. Moreover, the plate-like body can serve as an end cover of the water outlet of the box body.

[0017] Preferably, the lower wall of the water outlet portion near the second end of the plug-in unit is radially expanded outward to form a water outlet. When the microbubble water box is placed horizontally, the water outlet inclined downward facilitates the introduction of microbubble water downward to a predetermined position.

[0018] Preferably, along the flow direction of the water flow, the inner diameter of the negative pressure chamber gradually decreases to form a tapered chamber with a gradually decreasing diameter, and the inner diameter of the mixing chamber gradually increases to form a tapered chamber with a gradually increasing diameter. The configuration of the negative pressure chamber is used to enhance the intake of air, while the configuration of the mixing chamber is used to enhance the mixing degree of air and water.

[0019] Preferably, the spoiler ribs provided on the inner wall of the negative pressure chamber can help the water flow to mix the inhaled air more effectively downstream by increasing the turbulence of the water, thereby generating more bubbles in the water.

[0020] Preferably, a plurality of overflow ports are provided on the second end of the plug-in. When the water pressure in the nozzle is insufficient and the water flow cannot quickly penetrate the micro-bubble bubbling net, the water flow can flow out from these overflow ports, thereby avoiding the problem of the micro-bubble bubbling net being blocked and the inability to inhale due to the accumulation of water flow in the mixing chamber, thereby ensuring the high reliability of the micro-bubble water box to continuously generate micro-bubble water.

[0021] Preferably, the microbubble bubbling net is a multi-layer net structure, which can significantly reduce the diameter of the microbubbles and increase the mixing degree of the microbubbles and water by cooperating with the micron pores on each layer of the net structure.

[0022] In order to solve the above-mentioned problems in the prior art, that is, to solve the technical problems that the existing washing equipment has poor cleaning effect and the residual detergent may cause hidden dangers to the health of users, the present invention also provides a washing equipment, which includes any one of the micro-bubble water boxes as described above, and the micro-bubble water box is arranged in the washing equipment to provide micro-bubble water for the washing equipment. By spraying micro-bubble water into the washing equipment, it can help improve the cleaning ability of the washing equipment, and at the same time can save the amount of detergent, which is also beneficial to the health of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0024] Figure 1is a three-dimensional schematic diagram of an embodiment of a micro bubble water box of the present invention;

[0025] Figure 2 yes Figure 1 A front view of an embodiment of a microbubble water box of the present invention is shown;

[0026] Figure 3 It is along Figure 2 A cross-sectional view of an embodiment of the microbubble water box of the present invention taken along section line AA;

[0027] Figure 4 It is along Figure 2 A cross-sectional view of an embodiment of a microbubble water box of the present invention taken along section line BB;

[0028] Figure 5 is a first stereoscopic schematic diagram of an embodiment of an insert of a micro bubble water box of the present invention;

[0029] Figure 6 is a second stereoscopic schematic diagram of an embodiment of the insert of the micro bubble water box of the present invention;

[0030] Figure 7 is a three-dimensional schematic diagram of an embodiment of a pressing plate of a micro bubble water box of the present invention;

[0031] Figure 8 It is a schematic structural diagram of an embodiment of a washing device of the present invention;

[0032] Fig. 9 yes Figure 8 The figure shows a partially enlarged schematic diagram of an embodiment of a washing device of the present invention.

[0033] List of reference numerals:

[0034] 1. Pulsator washing machine; 11. Box body; 12. Plate base; 13. Upper cover; 14. Foot; 21. Outer barrel; 31. Inner barrel; 311. Dehydration hole; 32. Pulsator; 33. Transmission shaft; 34. Motor; 35. Balance ring; 41. Drain valve; 42. Drain pipe; 5. Micro bubble water box; 51. Box body; 511. Water inlet; 111. Water inlet; 112. Pressurization channel; 1 13, straight channel; 512, radial wall; 512a, conical boss; 513, throttle hole; 514, water outlet; 141, circumferential outer wall; 141a, upper wall; 141b, lower wall; 141c, left wall; 141d, right wall; 142, circumferential inner wall; 142a, inner upper wall; 142b, inner left wall; 142c, inner right wall; 143, suction groove; 144, rib wall; 145, air inlet; 146, plug-in chamber; 147, water outlet; 148, reinforcing rib; 149, mesh groove; 515, micro-bubble water chamber; 516, air inlet channel; 52, pressure plate; 521, plate-shaped body; 521a, inner side; 521b, upper edge; 521c, lower edge; 522, pressure leg; 522a, first pressure leg; 522b, second pressure leg; 523, circumferential gap; 524, fixing hole; 525, sleeve; 53, plug-in; 531, negative pressure chamber; 532, mixing chamber; 533, sealing groove; 534, sealing ring; 535, overflow port; 536, transition hole; 537, straight mixing chamber; 538, spoiler rib; 539a, first end; 539b, second end; 54, micro-bubble bubbling net; 61, water inlet valve; 62, water inlet pipe. DETAILED DESCRIPTION

[0035] The 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 used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0036] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In order to solve the technical problem that the microbubble generation rate of the existing water injection box is not high, the present invention provides a microbubble water box 5. The microbubble water box 5 includes: a box body 51, which includes a water inlet 511, a water outlet 514, and a throttle hole 513 located between the water inlet 511 and the water outlet 514, the water inlet 511 is provided with a water inlet 111, the water outlet 514 is provided with a plug-in chamber 146, an air suction groove 143 extending along the outer periphery of the plug-in chamber 146 and forming air communication therewith, and a water outlet 147 located downstream of the plug-in chamber 146; a plug-in 53, which is configured to be accommodated in the plug-in chamber 146, and a negative pressure chamber 531 and a mixing chamber 53 located downstream of the negative pressure chamber 531 are provided in the plug-in 53. 2, the first end 539a of the plug-in 53 is positioned close to the throttle hole 513 and an air inlet channel 516 is formed between the plug-in chamber 146 and the plug-in chamber 146, so that the negative pressure generated by the water flow after throttling by the throttle hole 513 in the negative pressure chamber 531 can suck air from the suction groove 143 into the negative pressure chamber 531, and the air and the water flow are mixed in the mixing chamber 532 to form bubble water; and a micro-bubble bubbling net 54, which is fixed on the second end 539b of the plug-in 53 and is configured to cut the bubble water into micro-bubble water that can be discharged from the water outlet 147. The design of the suction groove 143 provides a very smooth air flow channel for the micro-bubble water box 5, so that the micro-bubble water box 5 can inhale a large amount of ambient air from the outside, thereby being able to produce bubble water containing a large amount of bubbles, and the bubble water is then cut and mixed by the micro-bubble bubbling net 54 to form micro-bubble water containing a large amount of micro-bubbles.

[0039] Unless otherwise specified, the "upstream" and "downstream" mentioned in this document are relative to the water flow direction C shown in the drawings of the specification. The "upper wall", "lower wall", "left wall" and "right wall" mentioned in this document are all for the case where the microbubble water box of the present invention is placed horizontally and the microbubble water box is observed from the water outlet side.

[0040] Figure 1 2 is a three-dimensional schematic diagram of an embodiment of a micro bubble water box of the present invention. Figure 2 yes Figure 1 A front view of an embodiment of a microbubble water box of the present invention is shown, Figure 3 It is along Figure 2A cross-sectional view of an embodiment of the microbubble water box of the present invention taken along section line AA, and Figure 4 It is along Figure 2 A cross-sectional view of an embodiment of the microbubble water box of the present invention taken along the section line BB. Figure 1-Figure 4 As shown, in one or more embodiments, the microbubble water box 5 includes a box body 51, an insert 53 accommodated in the box body 51, a microbubble bubbling net 54, and a pressing plate 52 for fixing the microbubble bubbling net 54 on the second end 539b of the insert 53. Alternatively, the microbubble bubbling net 54 can also be fixed to the second end 539b of the insert 53 by other suitable means, such as a pressure ring or other structures.

[0041] like Figure 3 and Figure 4 As shown, the box body 51 includes a water inlet 511, a water outlet 514 and a throttle hole 513 located between the water inlet 511 and the water outlet 514. The water inlet 511 and the water outlet 514 are formed as one body and share a radial wall 512. In one or more embodiments, the throttle hole 513 is formed at the center of the radial wall 512. Preferably, a conical boss 512a is formed on the radial wall 512, which surrounds the throttle hole 513 and protrudes slightly downstream, and the outer diameter of the conical boss gradually decreases along the water flow direction C. Alternatively, the throttle hole 513 may be formed in the water inlet 511.

[0042] In one or more embodiments, the water inlet 511 is substantially cylindrical. Figure 3 and Figure 4 As shown, a water inlet 111 is formed on the outer end of the water inlet 511, and the water inlet 511 can be connected to an external water source, such as tap water, through the outer end. Alternatively, the water inlet 511 can also adopt other suitable shapes, such as a water inlet with an elliptical cross-section. In one or more embodiments, a straight channel 113 and a pressurized channel 112 are respectively formed in the water inlet 511. The so-called "straight channel" refers to a channel whose diameter remains unchanged along the extended length. As shown in FIG. Figure 3 As shown, along the water flow direction C, the straight channel 113 extends from the water inlet 111 to the pressurized channel 112, and the pressurized channel 112 extends from the straight channel 113 to the throttling hole 513. The diameter of the straight channel 113 remains unchanged along its extended length. The diameter of the pressurized channel 112 gradually decreases along the water flow direction C to form a tapered channel. The tapered channel can pressurize the water flowing through it, and the pressurized water can be rapidly expanded and ejected to the downstream through the throttling hole 513 and generate a large negative pressure. Optionally, the straight channel is omitted in the water inlet 511, so that the pressurized channel 112 can extend from the water inlet 111 to the throttling hole 513.

[0043] like Figure 3 and Figure 4As shown, the water outlet portion 514 includes a plug-in chamber 146, an air suction groove 143 extending along the periphery of the plug-in chamber 146 and forming air communication therewith, and a water outlet 147 located downstream of the plug-in chamber 146. The plug-in chamber 146 is directly connected to the throttling hole 513 upstream thereof. The cross-section of the plug-in chamber 146 perpendicular to the water flow direction C is roughly circular. In one or more embodiments, the water outlet portion 514 is a roughly hollow box-shaped structure having an upstream end, a downstream end, and four side surfaces located between the upstream end and the downstream end. The upstream end is connected to the water inlet portion 511, and the downstream end is an open opening. The plug-in chamber 146 extends between the upstream end and the downstream end. As Figure 1 and Figure 2 As shown, an upper wall 141a, a lower wall 141b, a left wall 141c, and a right wall 141d are formed on the four sides of the water outlet 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 surrounds the entire plug-in chamber 146 in the circumferential direction. Figure 3 and Figure 4 As shown, in one or more embodiments, the portion of the lower wall 141b close to the downstream end of the water outlet portion 514 gradually extends downward in the radial direction (relative to Figure 3 The expanded portion 514 is enlarged (in the direction shown), and the space enclosed by the expanded portion forms a water outlet 147. In order to increase the strength of the expanded portion, a plurality of reinforcing ribs 148 are provided thereon, which are spaced apart from each other and extend substantially parallel to each other. The extending direction of these reinforcing ribs 148 is substantially the same as the direction of the water flow leaving the micro bubble water box, and thus also guides the flow 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. For example, Figure 1 and Figure 2 As shown, in one or more embodiments, a circumferential inner wall 142 is further formed between the circumferential outer wall 141 and the plug-in chamber 146. The circumferential inner wall 142 is substantially parallel to the circumferential outer wall 141 and a gap having a predetermined distance is formed therebetween, and the gap constitutes an air intake groove 143. The air intake groove 143 is completely open toward the downstream end of the water outlet portion 514, thereby allowing outside air to freely and sufficiently enter the air intake groove 143. Accordingly, an air inlet 145 passing through the circumferential inner wall 142 is provided on the portion of the circumferential inner wall 142 located at the upstream end of the water outlet portion 514, thereby allowing air communication to be formed between the plug-in chamber 146 and the air intake groove 143. The air inlet 145 may be one or more circular holes, or may be a narrow and long hole of an appropriate size. As shown in FIG. Figure 1 and Figure 2As shown, 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 of the circumferential outer wall 141 respectively. 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 141d. Therefore, the air suction groove 143 is a roughly U-shaped annular groove. In order to enhance the strength of the water outlet 514 and prevent the circumferential outer wall 141 from deforming, a plurality of rib walls 144 spaced a certain distance from each other are provided between the circumferential outer wall 141 and the circumferential inner wall 142. Alternatively, the circumferential inner wall 142 extends only along the upper wall 141a, so that only an "I"-shaped air suction groove 143 is formed between the upper wall 141a and the inner upper wall 142a; or, the circumferential inner wall 142 extends along the upper wall 141a and the left wall 141c, so that an "L"-shaped air suction groove 143 is formed between the upper wall 141a, the left wall 141c and the inner upper wall 142a, the inner left wall 142b. Similarly, the circumferential inner wall 142 extends along the upper wall 141a and the right wall 141d, so that an "L"-shaped air suction groove 143 is formed between the upper wall 141a, the right wall 141d and the inner upper wall 142a, the inner right wall 142c.

[0044] Figure 5 is a first stereoscopic schematic diagram of an embodiment of the microbubble water box insert of the present invention, and Figure 6 FIG. 2 is a second perspective view of an embodiment of the microbubble water box insert of the present invention. Figure 5 and Figure 6 As shown, the plug-in 53 is a generally cylindrical structure that matches the plug-in chamber 146. The plug-in 53 has a first end 539a and a second end 539b. Figure 3 and Figure 4 As shown, in a state where the plug 53 is assembled into the plug chamber 146, the first end 539a of the plug 53 is placed in the upstream end of the water outlet 514, and is therefore close to the throttle hole 513 and the air inlet 145. The first end 539a of the plug 53 can abut against the conical boss 512a of the radial wall 512, so that a gap is formed between the first end 539a and the plug chamber 146, and the gap is connected to the air inlet 145, so that air communication can also be formed with the suction groove 143, thereby forming an air inlet passage 516. Figure 3 and Figure 4 As shown, in one or more embodiments, an annular sealing groove 533 is further provided on the circumferential outer wall of the plug-in 53 near the first end 539a, and the sealing groove 533 is used to accommodate a sealing ring 534, thereby forming a fluid seal between the plug-in 53 and the inner wall of the plug-in chamber 146. Figure 3-Figure 6As shown, inside the plug-in 53, along the center line of the plug-in 53, from the first end 539a to the second end 539b, a negative pressure chamber 531, a transition hole 536, a mixing chamber 532, and a straight mixing chamber 537 are sequentially formed. In the assembled state of the micro bubble water box 5, the negative pressure chamber 531 is located downstream of the throttle hole 513 and is directly connected to the throttle hole 513. The conical boss 512a on the radial wall 512 enters the upstream end of the negative pressure chamber 531 and is stuck on the upstream end, thereby maintaining the air inlet channel 516 between the upstream end 539a of the plug-in 53 and the plug-in chamber 146. In one or more embodiments, the diameter of the negative pressure chamber 531 gradually decreases along the water flow direction C, so that the negative pressure chamber 531 forms a tapered chamber with a gradually decreasing diameter. This tapered chamber with a gradually decreasing diameter can enhance the inhalation of air, so that more external air can enter the negative pressure chamber 531. The mixing chamber 532 is connected to the negative pressure chamber 531 through the transition hole 536. The diameter of the transition hole 536 is approximately the same as the minimum diameter of the negative pressure chamber 531. In one or more embodiments, the diameter of the mixing chamber 532 gradually increases along the water flow direction C, so that the mixing chamber 532 forms a tapered chamber with a gradually expanding diameter. An additional mixing chamber with the maximum diameter of the tapered chamber is also formed downstream of the tapered chamber with a gradually expanding diameter, which is called a straight mixing chamber 537, so that the air and water flow can be fully mixed. Alternatively, the straight mixing chamber 537 can be eliminated in the plug 53. Figure 6 As shown, a plurality of overflow ports 535 are provided on the second end 539b of the plug-in 53. These overflow ports 535 are distributed on the annular end surface of the second end 539b and are spaced apart by a predetermined distance. According to actual needs, the distances between adjacent overflow ports 535 may be the same or different. In the case of insufficient water pressure, the water flow may not be able to quickly penetrate the microbubble bubbling net 54, and therefore will accumulate in the mixing chamber. These overflow ports allow the water flow to flow out through them, thereby avoiding the microbubble bubbling net 54 being blocked by the accumulation of water flow in the mixing chamber, thereby ensuring the high reliability of the microbubble water box 5 in continuously producing microbubble water.

[0045] like Figure 6 As shown, in one or more embodiments, a plurality of spoiler ribs 538 are formed on the inner wall of the negative pressure chamber 531 of the plug-in 53. These spoiler ribs 538 are spaced apart from each other and extend longitudinally along the negative pressure chamber 531. These spoiler ribs 538 can increase the turbulence of the water flow, thereby being able to help the water flow to mix the inhaled air more effectively downstream. Alternatively, the spoiler ribs can be replaced by at least one radial protrusion provided on the inner wall of the negative pressure chamber, such as one or more columnar protrusions. Alternatively, other forms of spoilers can also be formed on the inner wall of the negative pressure chamber.

[0046] like Figure 3 and Figure 4As shown, the microbubble bubbling net 54 is fixed to the second end 539b of the plug-in 53 by the pressing plate 52. The microbubble bubbling net 54 completely covers the second end of the plug-in 53 and exceeds the outer periphery of the second end. Accordingly, an annular mesh groove 149 is formed at a corresponding position of the inner wall of the plug-in chamber 146, so that the portion of the microbubble bubbling net 54 that exceeds the outer periphery of the second end of the plug-in 53 can extend into the mesh groove 149. In one or more embodiments, the microbubble bubbling net 54 includes a multi-layer mesh structure, such as two layers, three layers or more layers. Each layer of the mesh structure has at least one mesh hole with a diameter of micron level. Preferably, the diameter of the mesh hole is between 0 and 1000 microns; more preferably, the diameter of the mesh hole is between 5 and 500 microns. The filter screen can be a plastic fence, a metal mesh, a polymer material mesh, or other suitable mesh structure. Plastic fences generally refer to polymer fences, which are integrally injection molded from polymer materials, or polymer materials are first made into plates, and then a microporous structure is produced on the plates by machining to form plastic fences. Polymer material nets generally refer to nets with microporous structures that are made by first making polymer materials into threads and then weaving the threads. Polymer material nets may include nylon nets, cotton nets, polyester nets, polypropylene nets, and the like. Alternatively, the net structure may be other mesh structures that can produce microbubbles, such as a mesh structure composed of two non-micrometer-sized honeycomb structures. When the bubble water flows through the mesh structure, the mesh structure produces a mixing and cutting effect on the bubble water, thereby producing a large amount of microbubble water.

[0047] Figure 7 2 is a perspective schematic diagram of an embodiment of a pressure plate of a micro bubble water box of the present invention. Figure 7 As shown, in one or more embodiments, the pressing plate 52 has a plate-like body 521 and a pressing leg 522 extending outward from the inner side 521a of the plate-like body 521. In the assembled state of the microbubble water box 5, the inner side 521a of the plate-like body 521 faces the microbubble bubbling net 54, and is therefore referred to as the "inner side". Correspondingly, the side of the plate-like body 521 that faces away from the microbubble bubbling net 54 is referred to as the outer side (not marked in the figure). The plate-like body 521 also has an upper edge 521b and a lower edge 521c. In the assembled state of the microbubble water box 5, the plate-like body 521 basically covers the downstream end of the water outlet 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 close 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 the downstream end cover of the water outlet 514, and only the water outlet 147 and the air suction groove 143 need to be exposed. Optionally, the lower edge 521c of the plate-like body 521 can be formed into a substantially arc shape, and in the assembled state of the micro bubble water box 5, the lower edge 521c is bent inwardly to form a relatively smooth surface on its outer side. Figure 7As shown, in one or more embodiments, the pressing plate 52 is fixed to the water outlet 514 of the box body 51 by screws or screws. Accordingly, two fixing holes 524 are formed on the plate-like body 521. The two fixing holes 524 are distributed on the left and right sides of the plate-like body 521, and the distance between the two exceeds the maximum outer diameter of the plug-in chamber 146 to avoid interference with the plug-in chamber 146. The screw or screw can extend through the fixing hole 524 to fix the pressing plate 52 on the water outlet 514. In one or more embodiments, a sleeve 525 protruding outward is formed around each fixing hole 524 on the inner side 521a of the plate-like body 521. A corresponding structure that can be inserted into the sleeve 525 or sleeved on the sleeve 525 is formed on the water outlet 514. Therefore, the sleeve 525 also plays a guiding role when installed. Alternatively, the pressing plate 52 can also be fixed to the water outlet 514 in other suitable ways, such as by a snap structure. The pressing plate 52 not only fixes the micro-bubble generating net 54, but also blocks water to prevent the sprayed water from splashing.

[0048] like Figure 7 As shown, in one or more embodiments, the press leg 522 includes a plurality of press legs, which are arranged in a ring shape, and the ring shape corresponds to the end surface of the second end 539b of the plug 53, so that the press plate 52 can press the microbubble bubbler 54 against the end surface of the second end 539b of the plug 53 through these press legs. Through these press legs, a microbubble water chamber 515 for receiving microbubble water is formed between the plate-like body 521 and the microbubble bubble net 54. Circumferential gaps 523 are formed between adjacent press legs to allow microbubble water to flow from the microbubble water chamber 515 to the water outlet 147 through these circumferential gaps 523. Figure 7 As shown, in one or more embodiments, a plurality of leg presses 522 include a first leg press 522a and a plurality of second leg presses 522b. Along the circumferential direction, the width of the first leg press 522a is greater than each second leg press 522b. When assembling the micro bubble water box 5, the first leg press 522a with a relatively large width can play a role in positioning and alignment. Alternatively, the leg press 522 can form a tubular structure that can match the second end 539b end face of the plug-in 53, and a large opening that can be aligned with the water outlet is provided on the sidewall of the tubular structure to allow micro bubble water to flow into the water outlet 147 from the micro bubble water chamber 515.

[0049] When the microbubble water box 5 is working, water from an external water source enters the water inlet 511 from the water inlet 111. Along the water flow direction C, the water flow is pressurized through the pressure channel 112 and then expanded through the throttle hole 513 and sprayed into the negative pressure chamber 531, and a negative pressure is generated in the negative pressure chamber. Under the action of the negative pressure, a large amount of external air is sucked into the negative pressure chamber 531 from the air suction groove 143 through the air inlet 145 and the air inlet channel 516. Then, the air and the water flow flow into the mixing chamber 532 together and are more fully 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 number of microbubbles. The microbubble water flows from the microbubble water chamber 515 to the water outlet 147.

[0050] The present invention also provides a washing device, which includes a microbubble water box 5 of the present invention. The microbubble water box 5 is arranged in the washing device to provide microbubble water. Through the microbubble water box, not only can the washing ability of the washing device be improved, but also the amount of detergent treatment agent used can be reduced and the residual amount of detergent treatment agent in, for example, clothes can be reduced, thereby not only benefiting the health of users, but also improving the user experience.

[0051] Figure 8 1 is a schematic structural diagram of an embodiment of the washing device of the present invention. Fig. 9 yes Figure 8 The partially enlarged schematic diagram of an embodiment of the washing device of the present invention is shown. In this embodiment, the washing device is a pulsator washing machine 1. Alternatively, in other embodiments, the washing device may be a drum washing machine or a drying machine.

[0052] like Figure 8 and Fig. 9As shown, a pulsator washing machine 1 (hereinafter referred to as washing machine) includes a housing 11. A foot 14 is provided at the bottom of the housing 11. A pan seat 12 is provided at the upper part of the housing 11, and a top cover 13 is pivotally connected to the pan seat 12. An outer barrel 21 as a water storage tub is provided in the housing 11. An inner barrel 31 is provided in the outer barrel 21, and a pulsator 32 is provided at the bottom of the inner barrel 31. A motor 34 is fixed to the lower part of the outer barrel 21, and the motor 34 is connected to the pulsator 32 through a transmission shaft 33. A dehydration hole 311 is provided on the side wall of the inner barrel 31. A drain valve 41 is provided on a drain pipe 42, and the upstream end of the drain pipe 42 is connected to the bottom of the outer barrel 21. The washing machine also includes a water inlet valve 61, a water inlet pipe 62 connected to the water inlet valve 61 at one end, and a micro bubble water box 5 connected to the other end of the water inlet pipe 62. The micro bubble water box 5 is installed on the pan seat 12. The micro bubble water box 5 can be any of the micro bubble water boxes described above. Water from a water source (e.g., tap water or recyclable water) enters the microbubble water box 5 via the water inlet valve 61 and the water inlet pipe 62, and microbubble water is produced by the microbubble water box 5, which is then sprayed into the outer barrel 21 and / or the inner barrel 31 for washing clothes. The microbubbles in the water collide with the detergent during the crushing process, and the microbubbles can also adsorb the detergent by carrying negative charges, so the microbubbles can increase the mixing degree of the detergent and water, thereby reducing the amount of the detergent and reducing the residual amount of the detergent on the clothes. In addition, the microbubbles will also collide with the stains on the clothes in the inner barrel 31, and will adsorb the foreign matter that produces the stains. Therefore, the microbubbles enhance the decontamination performance of the washing machine.

[0053] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art may combine the technical features from different embodiments, or make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A micro bubble water box, characterized in that: The micro bubble water box comprises: The box body comprises a water inlet, a water outlet, and a throttle hole between the water inlet and the water outlet, wherein the water inlet is provided with a water inlet, and the water outlet is provided with a plug-in chamber, an air suction groove extending along the outer circumference of the plug-in chamber and forming air communication therewith, and a water outlet located downstream of the plug-in chamber; A plug-in configured to be accommodated in the plug-in chamber, wherein a negative pressure chamber and a mixing chamber located downstream of the negative pressure chamber are provided in the plug-in, wherein a first end of the plug-in is positioned close to the throttling hole and an air inlet passage connecting the air suction groove and the negative pressure chamber is formed between the first end of the plug-in and the plug-in chamber, so that the negative pressure generated in the negative pressure chamber by the water flow throttled by the throttling hole can suck air from the air suction groove into the negative pressure chamber, and the air and water flow are mixed in the mixing chamber to form bubble water; and a micro-bubble bubbling net fixed to the second end of the insert and configured to cut the bubble water into micro-bubble water that can be discharged from the water outlet; Wherein, the microbubble water box further comprises a pressing plate, the pressing plate comprising a plate-shaped body and a pressing leg extending outward from the inner side of the plate-shaped body, the pressing plate presses the microbubble bubbling net against the second end of the plug-in through the pressing leg, so that a microbubble water chamber for receiving the microbubble water and communicating with the water outlet is formed between the microbubble bubbling net and the plate-shaped body; Wherein, the water outlet portion includes a circumferential outer wall and a circumferential inner wall surrounding the plug-in chamber, the circumferential outer wall is composed of an upper wall, a lower wall, a left wall and a right wall, the circumferential inner wall extends in parallel along at least a portion of the upper wall, the left wall and the right wall, the air suction groove is formed between the circumferential outer wall and the circumferential inner wall and forms air communication with the air intake channel via an air intake port formed on the circumferential inner wall; wherein a portion of the lower wall close to the second end of the insert is radially expanded outwardly to form the water outlet; Wherein, the microbubble bubbling net comprises a multi-layer net structure, and each layer of the net structure has at least one mesh hole with a diameter reaching micrometer level.

2. The microbubble water box according to claim 1, characterized in that: The press legs include a plurality of press legs, which are arranged in a ring shape matching the second end of the plug-in and forming a circumferential gap between adjacent press legs, and the microbubble water flows from the microbubble water chamber to the water outlet via the circumferential gap.

3. The microbubble water box according to claim 1 or 2, characterized in that: Along the flow direction of the water flow, the inner diameter of the negative pressure chamber gradually decreases, and the inner diameter of the mixing chamber gradually increases.

4. The microbubble water box according to claim 1 or 2, characterized in that: A plurality of overflow ports are disposed on the second end of the insert.

5. The microbubble water box according to claim 1 or 2, characterized in that: A spoiler rib is arranged on the inner wall of the negative pressure chamber.

6. A washing device, characterized in that: The washing device comprises a microbubble water box according to claims 1 to 5, and the microbubble water box is arranged on the washing device to provide microbubble water for the washing device.

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