Microbubble generating device and bathtub using same

Abstract

The utility model discloses a microbubble generating device and discloses a bathtub with the microbubble generating device, and the microbubble generating device comprises a water return assembly, a water outlet assembly, a water outlet assembly, a water inlet assembly, a water outlet assembly and a water outlet assembly, the water return assembly comprises a water return pipe and a filter cover, and the filter cover is provided with a plurality of filter holes; the venturi tube comprises a water inlet end, a first water outlet end and an air inlet end, the water inlet end is connected with the water return pipe, and water entering from the water inlet end and air entering from the air inlet end are mixed in the venturi tube and then output from the first water outlet end; the booster water pump is provided with a water return end and a second water outlet end; the water return end is connected with the first water outlet end; the release joint is connected with the second water outlet end, a plurality of release holes are formed in the release joint, and the hole diameter of the release holes is not smaller than that of the filter holes; the water return assembly cancels a conventional overtight filter screen component, and filter holes of a filter cover are matched with release holes, so that smooth flowing of water, stable generation of microbubbles and the water outlet effect are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-bubble generating equipment, in particular to a micro-bubble generating device and a bathtub using the same. Background Art

[0002] At present, microbubble water technology has been widely used in the field of cleaning and environmental management. In the home appliance and bathroom industry, the pressurized dissolved air method is generally used. The principle of pressurized dissolved air can be explained as "pressurization of air intake and decompression of water outlet", that is, the pressure needs to be increased when the air is inlet (increase the water pressure or air pressure), and the pressure needs to be reduced when the water is outlet, thus ensuring the process of air introduction and release. However, to achieve better microbubble water, a gas mixing step is also required. Usually, a gas mixing tank needs to be added after the booster pump to improve the gas-liquid mixing effect, and a degassing device needs to be added to remove the larger bubbles that are not well dissolved. In this way, the system becomes complicated, there are many accessories in the water channel, and multiple filters are often used at the inlet and outlet of the water channel to filter solid foreign matter in the water. The water stays in the pipeline for a long time, and the water flow is not smooth enough, which affects the emulsification / cavitation effect of the water. Utility Model Content

[0003] The utility model aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. To this end, the utility model provides a micro-bubble generating device.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model also provides a bathtub with the micro-bubble generating device.

[0006] According to the first embodiment of the present invention, the microbubble generating device comprises:

[0007] A water return assembly comprises a water return pipe and a filter cover, wherein the filter cover is mounted on the water return pipe and is provided with a plurality of filter holes;

[0008] A venturi tube, the venturi tube comprising a water inlet end, a first water outlet end and an air inlet end, the water inlet end is connected to the water return pipe, the water entering from the water inlet end and the air entering from the air inlet end are mixed in the venturi tube and then output from the first water outlet end;

[0009] A booster water pump, the booster water pump having a water return end and a second water outlet end, the water return end being connected to the first water outlet end;

[0010] A release joint, wherein the release joint is connected to the second water outlet end, and a plurality of release holes are provided on the release joint, and the aperture of the release holes is not less than the aperture of the filter hole.

[0011] The microbubble generating device according to the embodiment of the utility model has at least the following beneficial effects: the return water component eliminates the conventional over-dense filter component, and adopts the coordination of the filter holes, venturi tube and release holes of the filter cover to ensure the smooth flow of water, the stable generation of microbubbles and the water discharge effect.

[0012] According to some embodiments of the present utility model, the water return assembly further comprises a water return joint, which is installed on an end of the water return pipe away from the venturi tube, and the filter cover is covered on the end of the water return joint.

[0013] According to some embodiments of the present utility model, the water return joint and the water return pipe form a straight-through flow channel.

[0014] According to some embodiments of the utility model, a water spray pipe is further included, one end of which is connected to the release joint, the release hole is located on the water path between the booster pump and the water spray pipe, and the water spray pipe is a straight-through water outlet.

[0015] According to some embodiments of the utility model, a water spray joint is provided on the end of the water spray pipe away from the release joint, and the water spray joint is a straight-through water outlet; the inner diameter of the end of the water spray pipe connected to the release joint is the same as the inner diameter of the water spray joint.

[0016] According to some embodiments of the utility model, the air inlet end is connected to an air inlet pipe, and the air inlet pipe is provided with a dustproof device.

[0017] According to some embodiments of the utility model, the interior of the venturi tube includes an entrance section, a first contraction section, a first throat section, a first diffusion section, a mixing section, a second contraction section, a second throat section, a second diffusion section and a discharge section arranged in sequence, the end of the entrance section away from the first contraction section is the water inlet end, the first contraction section gradually contracts from the entrance section toward the first throat section, the first diffusion section gradually expands from the first throat section toward the mixing section, the second contraction section gradually contracts from the mixing section toward the second throat section, the second diffusion section gradually expands from the second throat section toward the discharge section, the end of the discharge section away from the second diffusion section is the first water outlet end, and the air inlet end is connected to the first diffusion section.

[0018] According to some embodiments of the present invention, the first water outlet is arranged close to the water return end, and the release joint is arranged close to the second water outlet.

[0019] According to some embodiments of the present utility model, the booster water pump is a multi-stage centrifugal pump.

[0020] The bathtub according to the second embodiment of the utility model comprises a cylinder body and a micro-bubble generating device, and one end of the water return assembly and one end of the water spray pipe are both connected to the inner cavity of the cylinder body.

[0021] The bathtub according to the embodiment of the utility model has at least the following beneficial effects: the water return component absorbs the water in the cylinder body under the pumping action of the booster water pump, and then forms micro-bubble water after the action of the venturi and the booster water pump, which is sprayed from the water spray pipe into the inner cavity of the cylinder body, and the user can enjoy the effects of massage and the like when taking a bath.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a schematic diagram of the structure of a microbubble generating device;

[0025] Figure 2 yes Figure 1 Schematic diagram of structural decomposition;

[0026] Figure 3 It is a schematic diagram of the structure of the metal parts;

[0027] Figure 4 is a cross-sectional view of the venturi tube;

[0028] Figure 5 It is a structural diagram of a bathtub.

[0029] Figure numerals: return water assembly 100; return water pipe 110; filter cover 120; filter hole 121; return water joint 130; venturi tube 200; entrance section 201; first contraction section 202; first throat section 203; first diffusion section 204; mixing section 205; second contraction section 206; second throat section 207; second diffusion section 208; discharge section 209; water inlet end 210; first water outlet end 220; air inlet end 230; air inlet pipe 231; dust prevention device 232; booster pump 300; return water end 310; second water outlet end 320; release joint 400; release hole 401; metal part 410; water spray pipe 500; water spray joint 510; cylinder body 600; inner cavity 610. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The utility model relates to a micro-bubble generating device, comprising a water return component 100, a venturi tube 200, a booster water pump 300 and a release joint 400.

[0032] like Figure 1 , Figure 2 and Figure 3As shown, the return water assembly 100, the venturi tube 200, the booster pump 300, and the release joint 400 are connected in sequence. The return water assembly 100 includes a return water pipe 110 and a filter cover 120. The return water pipe 110 is a straight-through pipe. The return water pipe 110 can be an integrally formed pipe body or can be assembled from multiple sections of pipe bodies. The filter cover 120 can be installed on one end of the return water pipe 110. If the return water pipe 110 is assembled from multiple sections of pipe bodies, the filter cover 120 can be installed between two of the pipe bodies. A plurality of filter holes 121 are provided on the filter cover 120. The venturi tube 200 includes a water inlet end 210, a first water outlet end 220, and an air inlet end 230. The water inlet end 210 is connected to the return water pipe 110, and the first water outlet end 220 is connected to the return water end 310 of the booster pump 300. Under the pumping action of the booster water pump 300, the water from the outside is pumped into the return pipe 110. Then the water enters the venturi tube 200 from the water inlet end 210, and the water flows from the water inlet end 210 to the first water outlet end 220. Using the Venturi effect, the air in the external environment is sucked into the inside of the venturi tube 200 through the air inlet end 230, and the air and water are mixed. After the water and air are mixed, they are transported to the booster water pump 300 through the first water outlet end 220. When the water flows through the booster water pump 300, the impeller in the booster water pump 300 rotates at a high speed, cutting the water, and then further cutting the bubbles in the water, thereby improving the microbubble effect. Among them, the booster water pump 300 can use a multi-stage centrifugal pump, which can repeatedly cut the bubbles in the water under the action of the multi-stage impeller, and effectively improve the microbubble effect. The release joint 400 is connected to the second water outlet end 320 of the booster water pump 300. The release joint 400 is provided with a plurality of release holes 401. The downstream side of the release joint 400 can be connected to other pipes to transport water outward. In this embodiment, the release joint 400 is connected to the water spray pipe 500, and the release hole 401 is located on the water passage path between the boosting water pump 300 and the water spray pipe 500. The water sprayed from the second water outlet 320 of the boosting water pump 300 will flow into the water spray pipe 500 after passing through the release hole 401. The release joint 400 can be connected to one water spray pipe 500, or it can be connected to two or more parallel water spray pipes 500. The release joint 400 is used to limit the amount of water released from the boosting water pump 300 to the water spray pipe 500, increase the residence time of water in the boosting water pump 300, thereby determining the number of water cuttings in the gas-liquid mixed state of the blades in the boosting water pump 300, and also plays a role in cutting the bubbles in the water multiple times to form microbubbles, so as to promote the water to achieve an emulsified effect. The external water enters the return pipe 110 and flows through the filter cover 120. Solids in the water with a particle size larger than the filter hole 121 will be blocked on the filter cover 120 and cannot continue to flow along the return pipe 110 through the filter cover 120. Some solids with a particle size smaller than the filter hole 121 will pass through the filter hole 121 and continue to flow along the return pipe 110.The aperture of the release hole 401 is not less than the aperture of the filter hole 121, that is, the aperture of the release hole 401 is greater than or equal to the aperture of the filter hole 121, ensuring that the solid that can pass through the filter hole 121 can also pass through the release hole 401, avoiding clogging of the release hole 401 and affecting the water output effect. Figure 2 and Figure 3 As shown, the outside of the release joint 400 can be assembled by multiple sections of pipe fittings, and the release hole 401 is set on the component inside the release joint 400. For example, a cylindrical metal part 410 is set inside the release joint 400, and the metal part 410 is hollow inside, one end is a closed end, and the other end is an open end. The open end of the metal part 410 faces the second water outlet end 320. The release holes 401 are opened on the circumferential side wall of the metal part 410 and distributed along the circumference. The water in the booster pump 300 rushes into the metal part 410 along the axial direction, and under the blocking effect of the closed end of the metal part 410, the water is sprayed out from each release hole 401 in the radial direction, thereby forming a slow release effect. The return water component 100 cancels the conventional over-dense filter component, and adopts the cooperation of the filter hole 121 of the filter cover 120 and the release hole 401 to ensure the smooth flow of water, the stable generation of microbubbles and the water outlet effect.

[0033] The microbubble generating device can be used in various water-using equipment that need to use microbubble water, such as showers, etc. Figure 5 As shown, the utility model also relates to a bathtub, and a microbubble generating device is applied to the bathtub. The bathtub also includes a cylinder 600. One end of the return water component 100 of the microbubble generating device and one end of the water spray pipe 500 are both connected to the inner cavity 610 of the rod body. The return water component 100 absorbs the water in the cylinder 600 under the pumping action of the booster water pump 300, and then forms microbubble water after the action of the venturi 200 and the booster water pump 300, and sprays it from the water spray pipe 500 into the inner cavity 610 of the cylinder 600, so that the user can have the effect of massage and the like when taking a bath.

[0034] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the water return assembly 100 also includes a water return joint 130. The water return joint 130 is used to adapt the connection between the water return pipe 110 and the water-using equipment. For example, the water return pipe 110 is a straight pipe, and the water return joint 130 can be a curved pipe. One end of the water return joint 130 is installed on the end of the water return pipe 110 away from the venturi 200. The filter cover 120 covers the end of the water return joint 130. The water return joint 130 is fixed on the side wall of the cylinder body 600 and communicates with the inner cavity 610. Among them, the water return joint 130 and the water return pipe 110 constitute a straight-through flow channel. No other accessories such as filters that block the flow of water are installed in the water return joint 130 and the water return pipe 110. After passing through the filter cover 120, the water flows straight along the water return joint 130 and the water return pipe 110 toward the venturi 200.

[0035] In some embodiments of the utility model, a water spray pipe 500 is also included. A water spray joint 510 is provided on the end of the water pipe 500 away from the release joint 400. The water spray joint 510 is used to connect the water spray pipe 500 to the cylinder body 600. The water spray pipe 500 can be an integrated pipe section or assembled from multiple pipe sections. The water spray pipe 500 is a straight-through water outlet, that is, no other accessories such as a grid are provided inside the water spray pipe 500 or on the end away from the release joint 400, so as to avoid the microbubble water colliding with other accessories when flowing in the water spray pipe 500 and affecting the flow rate, thereby reducing the water residence time in the water spray pipe 500, that is, to avoid the water flowing in the water spray pipe 500 or staying at the end when spraying out, causing the microbubbles to aggregate to form large bubbles and affect the emulsification effect. The water spray joint 510 can use an elbow. The water spray joint 510 is a straight-through water outlet, that is, no other accessories such as filters are installed on the water spray joint 510. After water is sprayed into the water spray pipe 500 from the release joint 400, the water can be directly sprayed out from the water spray joint 510. This ensures the smoothness of the microbubble water spraying process and avoids the aggregation of microbubbles to form large bubbles. Further, the inner diameter of the end of the water spray pipe 500 connected to the release joint 400 is the same as the inner diameter of the water spray joint 510, that is, the diameter of the two ends of the water channel formed by the water spray pipe 500 and the water spray joint 510 is the same, and the water flow entering the water spray pipe 500 is consistent with the water flow sprayed from the water spray joint 510. With the cooperation of the direct water outlet, the water flow spraying process is stable, reducing the residence time of water in the water spray pipe 500 or the water spray joint 510.

[0036] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the air inlet end 230 is connected to an air inlet pipe 231, and the air inlet pipe 231 can extend to the upper plane of the cylinder body 600. By controlling the inner diameter of the air inlet pipe 231, the water inlet and outlet flow of the return pipe and the water spray pipe 500 can be coordinated to achieve a reasonable air intake volume. The venturi tube 200 is used to replace the conventional air volume regulating valve to ensure the stability of the air intake volume and avoid the air intake volume failing to meet the cavitation / emulsification effect after mixing with water due to manual adjustment of the air volume regulating valve. Among them, a dustproof device 232 is provided on the air inlet pipe 231 to prevent foreign matter from entering the air inlet pipe 231. The dustproof device 232 can be a structure such as a dustproof mesh cover.

[0037] The venturi tube 200 utilizes the negative pressure formed in the tube when water flows through the inside to draw in the outside air. Figure 4As shown, the interior of the venturi tube 200 includes an inlet section 201, a first contraction section 202, a first throat section 203, a first diffuser section 204, a mixing section 205, a second contraction section 206, a second throat section 207, a second diffuser section 208 and a discharge section 209 arranged in sequence. The end of the inlet section 201 away from the first contraction section 202 is a water inlet end 210. The water of the return pipe 110 enters the inlet section 201 after passing through the water inlet end 210. The first contraction section 202 gradually contracts in a shrinking shape from the inlet section 201 to the first throat section 203. The first diffuser section 204 gradually expands in an expanding shape from the first throat section 203 to the mixing section 205. The inner diameter of the first throat section 203 is the same as the inner diameter of the small mouth end of the first contraction section 202 and the small mouth end of the first diffuser. The mixing section 205 is connected between the first diffusion section 204 and the second contraction section 206. The inner diameter of the mixing section 205 is the same as the inner diameter of the large mouth end of the first diffusion section 204 and the large mouth end of the second contraction section 206. The second contraction section 206 gradually contracts in a shrinking shape from the mixing section 205 to the second throat section 207, and the second diffusion section 208 gradually expands in a flaring shape from the second throat section 207 to the discharge section 209. The inner diameter of the second throat section 207 is the same as the inner diameter of the small mouth end of the second contraction section and the small mouth end of the second diffusion section 208. The end of the discharge section 209 away from the second diffusion section 208 is the first water outlet end 220. The air inlet end 230 is connected to the first diffusion section 204. The air inlet end 230 can be connected to the first diffusion section 204 along the radial direction of the first diffusion section 204. Water flows in sequence along the inlet section 201, the first contraction section 202, the first throat section 203, the first diffusion section 204, the mixing section 205, the second contraction section 206, the second throat section 207, the second diffusion section 208 and the discharge section 209. The negative pressure of the first diffusion section 204 and the second diffusion section 208 makes the gas and water mix more fully, preparing for the subsequent booster pump 300 to cut the bubbles in the water.

[0038] In some specific embodiments of the present invention, Figure 1 and Figure 2 As shown, the first water outlet end 220 of the venturi tube 200 is arranged close to the return water end 310 of the booster water pump 300, reducing the distance that the water after the gas-liquid mixture is discharged from the venturi tube 200 and enters the booster water pump 300, thereby reducing the gas aggregation. The first water outlet end 220 and the return water end 310 can be directly connected, or they can be connected through a small pipe section. The release joint 400 is arranged close to the second water outlet end 320 of the booster water pump 300, so that the water can quickly flow through the release joint 400 after being discharged from the booster water pump 300 and be released into the smooth water spray pipe 500, thereby reducing the residence time and avoiding the aggregation of microbubbles.

[0039] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A microbubble generating device, characterized in that: include: A water return assembly (100) comprises a water return pipe (110) and a filter cover (120), wherein the filter cover (120) is installed on the water return pipe (110), and a plurality of filter holes (121) are provided on the filter cover (120); a venturi tube (200), the venturi tube (200) comprising a water inlet end (210), a first water outlet end (220) and an air inlet end (230), the water inlet end (210) being connected to the water return pipe (110), water entering from the water inlet end (210) and air entering from the air inlet end (230) being mixed in the venturi tube (200) and then being output from the first water outlet end (220); A booster water pump (300), the booster water pump (300) comprising a water return end (310) and a second water outlet end (320), the water return end (310) being connected to the first water outlet end (220); A release joint (400), the release joint (400) being connected to the second water outlet end (320), the release joint (400) being provided with a plurality of release holes (401), the aperture of the release holes (401) being not less than the aperture of the filter hole (121).

2. The microbubble generating device according to claim 1, characterized in that: The water return assembly (100) further comprises a water return joint (130), wherein the water return joint (130) is installed on an end of the water return pipe (110) away from the venturi tube (200), and the filter cover (120) covers the end of the water return joint (130).

3. The microbubble generating device according to claim 2, characterized in that: The water return joint (130) and the water return pipe (110) form a straight-through flow channel.

4. The microbubble generating device according to claim 1, characterized in that: It also comprises a water spray pipe (500), one end of which is connected to the release joint (400), the release hole (401) is located on the water flow path between the booster water pump (300) and the water spray pipe (500), and the water spray pipe (500) is a straight-through water outlet.

5. The microbubble generating device according to claim 4, characterized in that: A water spray joint (510) is provided at the end of the water spray pipe (500) away from the release joint (400); the water spray joint (510) is a straight-through water outlet; the inner diameter of the end of the water spray pipe (500) connected to the release joint (400) is the same as the inner diameter of the water spray joint (510).

6. The microbubble generating device according to claim 1, characterized in that: The air inlet end (230) is connected to an air inlet pipe (231), and a dust prevention device (232) is provided on the air inlet pipe (231).

7. The microbubble generating device according to claim 1 or 6, characterized in that: The interior of the venturi tube (200) comprises an inlet section (201), a first contraction section (202), a first throat section (203), a first diffusion section (204), a mixing section (205), a second contraction section (206), a second throat section (207), a second diffusion section (208) and a discharge section (209) which are arranged in sequence; an end of the inlet section (201) away from the first contraction section (202) is the water inlet end (210); the first contraction section (202) gradually contracts from the inlet section (201) toward the first throat section (203); The first diffuser section (204) gradually expands from the first throat section (203) toward the mixing section (205), the second contraction section (206) gradually contracts from the mixing section (205) toward the second throat section (207), the second diffuser section (208) gradually expands from the second throat section (207) toward the discharge section (209), an end of the discharge section (209) away from the second diffuser section (208) is the first water outlet end (220), and the air inlet end (230) is in communication with the first diffuser section (204).

8. The microbubble generating device according to claim 1, characterized in that: The first water outlet end (220) is arranged close to the water return end (310), and the release joint (400) is arranged close to the second water outlet end (320).

9. The microbubble generating device according to claim 1, characterized in that: The booster water pump (300) is a multi-stage centrifugal pump.

10. A bathtub, characterized in that: It comprises a cylinder (600) and the micro-bubble generating device according to any one of claims 1 to 9, wherein one end of the water return assembly (100) and one end of the release joint (400) are both in communication with the inner cavity (610) of the cylinder (600).

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