Micro-nano bubble water generating device and bathtub

Abstract

The utility model relates to the technical field of bathroom accessories, and discloses a micro-nano bubble water generating device and a bathtub, which comprise a booster pump, a water return pipeline, an air inlet pipeline, a release pipeline and an accumulation discharge pipeline, the water return pipeline is sequentially communicated with the air inlet pipeline and an inlet of the booster pump in the water flow direction, and the release pipeline is communicated with an outlet of the booster pump. A filter screen is arranged in the water return pipeline; and the accumulation discharging pipeline is communicated with the bottom of the water return pipeline and the bottom of the booster pump. According to the micro-nano bubble water generating device, micro-nano bubble water faults caused by blocking of the release head can be avoided.

Description

Technical Field

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

[0002] The bathtub uses a power source to absorb water in the bathtub and mix it with air, and then sprays the water mixed with air into the bathtub, thereby producing a massage effect on the human body.

[0003] When the existing bathtub uses a booster pump to pressurize and release the water mixed with air, due to the relatively small aperture of the release head, the micro-nano bubble water generating device is easily blocked by impurities such as human keratin, oil and scale in the water, causing micro-nano bubble water failure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a micro-nano bubble water generating device to avoid micro-nano bubble water failure caused by blockage of the release head.

[0005] In order to solve the above technical problems, the utility model provides a micro-nano bubble water generating device, including a booster pump, a water return pipeline, an air intake pipeline, a release pipeline and an accumulation discharge pipeline;

[0006] The return water pipeline is connected to the air intake pipeline and the inlet of the booster pump in sequence along the water flow direction, and the release pipeline is connected to the outlet of the booster pump;

[0007] A filter is provided in the return water pipeline;

[0008] The drainage pipeline is communicated with the bottom of the return pipeline and the bottom of the booster pump.

[0009] As an improvement of the above solution, the release pipeline is a flexible pipeline.

[0010] As an improvement of the above solution, a release head for connecting to the bathtub is provided at the end of the release pipeline, a release sheet and a screen are provided in the release head, a release hole is provided on the release sheet, and the screen is provided on the water outlet side of the release hole.

[0011] As an improvement of the above-mentioned scheme, the release head includes a first seat body, a first surface cover, a first positioning core, and a locking piece. The first positioning core and the locking piece are both arranged in the first seat body. The two ends of the first positioning core are respectively connected to the first seat body and the locking piece. The locking piece locks the release piece in the first positioning core. The screen is arranged between the locking piece and the first surface cover, or is clamped with the inner wall of the first surface cover.

[0012] As an improvement on the above scheme, the first surface cover is provided with a first cylindrical body portion extending into the first seat body, the inner wall of the first cylindrical body portion is provided with a first limiting step adapted to the screen, and a first slot is provided at the end of the first cylindrical body portion opposite to the locking piece, the screen is clamped with the inner wall of the first surface cover, and the locking piece presses the screen against the first limiting step.

[0013] As an improvement on the above scheme, a return seat for connecting to the bathtub is provided at the end of the return pipe, and the return seat includes a second seat body, a second surface cover, and a second positioning core. The second surface cover is provided with a second cylindrical body portion extending into the second seat body, and the inner wall of the second cylindrical body portion is provided with a second limiting step adapted to the filter screen. The filter screen is clamped with the inner wall of the second surface cover, and a second notch is provided at the end of the second cylindrical body portion opposite to the second positioning core. One end of the second positioning core is connected to the second seat body, and the other end presses the filter screen against the second limiting step.

[0014] As an improvement of the above solution, the booster pump is a multi-stage booster pump, and at least two impellers are provided in the booster pump along the inlet direction.

[0015] As an improvement of the above solution, the return water pipeline is provided with a Venturi pipe section, the Venturi pipe section includes a contraction section, a throat section and an expansion section arranged in sequence, and the air intake pipeline is connected to the throat section of the Venturi pipe section;

[0016] The throat section is provided with a negative pressure air intake port, the two ends of the air intake pipeline are respectively connected to the atmosphere and the negative pressure air intake port, and the top end of the air intake pipeline is provided with a regulating valve for adjusting the airflow size.

[0017] In addition, the utility model also provides a bathtub, which includes a cylinder body and the above-mentioned micro-nano bubble water generating device, the cylinder body is provided with a water return port and a release port, the water return pipe is fixed to the water return port, and the release pipe is fixed to the release port.

[0018] As an improvement of the above solution, a dewatering device is provided at the bottom of the cylinder body, and the drainage pipeline is connected to the drainage switch of the dewatering device.

[0019] The implementation of this utility model has the following beneficial effects:

[0020] The utility model discloses a micro-nano bubble water generating device. By arranging a filter screen in a return water pipeline, impurities such as human keratin, grease and scale in the water can be blocked in the return water pipeline, thereby avoiding the blockage of the release head causing micro-nano bubble water failure, and at the same time reducing the generation of scale in the booster pump and the release pipeline;

[0021] In addition, by setting up a drainage pipeline, the bottom of the return pipeline and the bottom of the booster pump are connected to the drainage pipeline. When the work is stopped, the accumulated water in the booster pump and the return pipeline can be drained, further reducing the generation of scale and avoiding the blockage of the release head causing micro-nano bubble water failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of an embodiment of a micro-nano bubble water generating device of the utility model;

[0023] Figure 2 yes Figure 1 Another perspective structural diagram of;

[0024] Figure 3 yes Figure 1 Schematic diagram of the structure of the release head;

[0025] Figure 4 yes Figure 3 A schematic diagram of the structure of the middle release tablet;

[0026] Figure 5 yes Figure 1 Structural diagram of the middle water return seat;

[0027] Figure 6 It is a schematic diagram of the structure of the regulating valve on the intake pipe. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 6 As shown, the utility model discloses an embodiment of a micro-nano bubble water generating device, comprising a booster pump 1, a return water pipeline 2, an air intake pipeline 3, a release pipeline 4 and an accumulation discharge pipeline 5; the return water pipeline 2 is connected with the air intake pipeline 3 and the inlet of the booster pump 1 in sequence along the water flow direction, and the release pipeline 4 is connected with the outlet of the booster pump 1; a filter screen 61 is provided in the return water pipeline 2; the accumulation discharge pipeline 5 is connected with the bottom of the return water pipeline 2 and the bottom of the booster pump 1.

[0030] In this embodiment, by setting a filter 61 in the return pipe 2, impurities such as human keratin, oil, and scale in the water can be blocked in the return pipe 2, avoiding the blockage of the release head causing micro-nano bubble water failure, and at the same time reducing the generation of scale in the booster pump 1 and the release pipe 4; in addition, by setting the drainage pipe 5, the bottom of the return pipe 2 and the bottom of the booster pump 1 are connected to the drainage pipe 5, and when the work is stopped, the accumulated water in the booster pump 1 and the return pipe 2 can be drained, further reducing the generation of scale and avoiding the blockage of the release head causing micro-nano bubble water failure.

[0031] The release pipe 4 of this embodiment is preferably a flexible pipe, preferably a stainless steel mesh pipe instead of a conventional nanotube. The flexible stainless steel mesh pipe can be bent into a relatively smooth waterway according to the shape of the bathtub, and no accessories such as right-angle elbows that hinder the water flow are used. This can reduce the scale deposition in the waterway on the one hand, and reduce the aggregation of water flow in the pipe due to collision on the other hand, helping to produce a more uniform bubble water discharge effect; the flexible release pipe 4 is more effective in irregularly shaped bathtubs, which not only reduces the use of accessories and saves installation time, but also can obtain a better bubble water discharge effect.

[0032] refer to Figure 3 and Figure 4 The end of the release pipe 4 is provided with a release head 7 for connecting to the bathtub, and a release sheet 71 is provided in the release head 7, and a release hole 711 is provided on the release sheet 71. A screen 72 is also provided in the release head 7, and the screen 72 is located on the water outlet side of the release hole 711. The number of release holes 711 is preferably 3 to 5, and the diameter is preferably Ф0.6 to Ф1.5mm. The release hole 711 can control the water flow speed and water flow rate to avoid the collision and bursting of bubbles accelerated by the water flow adjustment operation. When the microbubbles released by the release sheet 71 flow to the vicinity of the screen 72, the aggregated large bubbles will be further divided and refined when encountering the screen 72, so that the mixed water flow flowing into the bathtub is in a uniform effect.

[0033] The release head 7 specifically includes a first seat body, a first cover 74, a first positioning core 75, and a locking member 76. The first positioning core 75 and the locking member 76 are both disposed in the first seat body, and the two ends of the first positioning core 75 are respectively connected to the first seat body and the locking member 76, and the locking member 76 locks the release sheet 71 in the first positioning core 75. The bottom diameter of the first positioning core 75 is preferably Φ5 to Φ8 mm.

[0034] Among them, a receiving groove for accommodating the release sheet 71 is provided in the first positioning core 75, and a water hole is provided at the bottom of the receiving groove. A plurality of first annular gaskets 78 can be optionally arranged between the release sheet 71 and the water hole and between the locking member 76 according to needs, so that the locking member 76 can lock the release sheet 71 in the receiving groove.

[0035] The screen 72 may be disposed between the locking member 76 and the first surface cover 74 , or may be clamped to the inner wall of the first surface cover 74 .

[0036] In this embodiment, the first cover 74 is provided with a first cylinder portion 741 extending into the first seat body, the screen 72 is engaged with the inner wall of the first cover 74, and a first notch 742 is formed at one end of the first cylinder portion 741 opposite to the locking member 76. When the screen 72 is removed from the first seat body along with the first cover 74, the first notch 742 can be used to conveniently separate the screen 72 from the first cover 74, so that the screen 72 can be conveniently disassembled and cleaned.

[0037] The inner wall of the first cylinder portion 741 is provided with a first limiting step 743 matched with the screen 72 , and the locking member 76 presses the screen 72 against the first limiting step 743 to prevent the screen 72 from falling off the first cover 74 .

[0038] The first seat body specifically includes a first base 731 and a first front body 732. The first base 731 is arranged outside the bathtub body, the first front body 732 is arranged outside the bathtub body, the first front body 732 extends into the first base 731 and is threadedly connected with the first base 731, a first rubber ring 77 for contacting with the inner and outer walls of the bathtub body is arranged between the first front body 732 and the first base 731, and the first surface cover 74 is covered on the first front body 732.

[0039] refer to Figure 5 The end of the return water pipe 2 is provided with a return water seat 6 for connecting to the bathtub, and the filter screen 61 is arranged in the return water seat 6, and the filter screen 61 is preferably arranged as a detachable structure for easy cleaning to ensure the water filtering effect.

[0040] Specifically, the water return seat 6 includes a second seat body, a second surface cover 63, and a second positioning core 64. The second surface cover 63 is provided with a second cylinder portion 631 extending into the second seat body, and the inner wall of the second cylinder portion 631 is provided with a second limiting step 633 adapted to the filter 61, the filter 61 is clamped with the inner wall of the second surface cover 63, and the second cylinder portion 631 is provided with a second notch 632 at one end opposite to the second positioning core 64. When the filter 61 is removed from the second seat body along with the second surface cover 63, the filter 61 can be easily separated from the second surface cover 63 through the second notch 632, so that the filter 61 can be cleaned separately. One end of the second positioning core 64 is connected to the interface in the second seat body, and the other end presses the filter 61 against the second limiting step 633 to prevent the filter 61 from falling off the second surface cover 63.

[0041] Among them, a plurality of second annular gaskets 66 can be selectively arranged between the second positioning core 64 and the filter screen 61 according to the assembly distance between the two, so as to achieve a tight contact effect between the bracket of the filter screen 61 and the second limiting step 633 .

[0042] The second seat body specifically includes a second base 621 and a second front body 622. The second base 621 is arranged outside the bathtub body, the second front body 622 is arranged outside the bathtub body, the second front body 622 extends into the second base 621 and is threadedly connected with the second base 621, a second rubber ring 65 for contacting with the inner and outer walls of the bathtub body is arranged between the second front body 622 and the second base 621, and the second surface cover 63 is covered on the second front body 622.

[0043] The return water pipeline 2 is provided with a venturi section 21, and the venturi section 21 includes a contraction section, a throat section and an expansion section arranged in sequence, and the air intake pipeline 3 is connected to the throat section of the venturi section 21. The throat section is provided with a negative pressure air intake port, and the air volume required here is very small, so there is no need to use an external air pump to actively pump air, but the two ends of the air intake pipeline 3 are connected to the atmosphere and the negative pressure air intake port respectively, and the top of the air intake pipeline 3 is provided with a regulating valve 31 for adjusting the air flow size. Since factors such as water quality, water pressure, and voltage affect the air volume required for bubble water, using the regulating valve 31 to properly fine-tune the air intake flow can achieve a better emulsification effect.

[0044] There is a fine-tuning knob 311 on the side of the regulating valve 31, which is used to control the in and out movement of the tapered needle in the regulating valve 31 to adjust the size of the airflow. The amount of air flow is adjusted according to different use environments such as water depth, pressure, voltage, etc. to ultimately achieve the optimal emulsification effect.

[0045] When the voltage is lower than or higher than the rated voltage, the power of the booster pump 1 will decrease or increase accordingly, and the water flow rate passing through the Venturi tube section 21 per unit time will increase or decrease accordingly, and the negative pressure acting on the diffusion section of the Venturi tube section 21 will also change accordingly. The greater the negative pressure, the greater the suction force, and the smaller the negative pressure, the smaller the suction force. At this time, if the air inlet aperture remains unchanged, the ratio of water to gas (water-gas ratio) will change. Appropriate fine-tuning can ensure the best microbubble presentation effect.

[0046] According to the same principle, when the water depth changes, the water pressure acting on the release port will also be different. The deeper the water, the greater the pressure. To achieve the same release volume, the water discharge force must be adjusted appropriately. At this time, the power of the booster pump 1 is no longer adjustable. The only adjustable thing is the suction volume. The suction volume at the return water end of the booster pump 1 and the suction volume at the outlet water end of the booster pump 1 have exactly opposite effects on the water discharge force. If the suction volume at the return water end is large, the water discharge force is small. When a certain amount of air is reached, it will even idle and fail. If the suction volume at the outlet water end is large, the water discharge force is large. Therefore, appropriate fine-tuning of the air intake volume can balance the pressure changes caused by the water depth, thereby stabilizing the release of microbubbles.

[0047] In this embodiment, the distance between the venturi tube section 21 and the inlet of the booster pump 1 is preferably set to 100mm-300mm, the inner diameters of both ends of the venturi tube section 21 are set to 30mm-35mm, and the inner diameter of the throat section is set to 7mm-9mm, so that there is a slightly higher contraction or injection space from the contraction section to the throat section and from the throat section to the expansion section, so that the initial mixing of the gas and the water flow reaches a more ideal state.

[0048] The booster pump 1 of this embodiment is preferably a multi-stage booster pump 1, and at least two impellers are provided in the booster pump 1 along the inlet direction to perform overlapping and cutting on the water-gas mixture entering the booster pump 1, so that the gas and liquid are fully dissolved to reach a cavitation state. The booster pump 1 of this embodiment is preferably provided with a first-stage impeller, a second-stage impeller, and a third-stage impeller in the impeller boosting chamber.

[0049] In addition, the utility model also provides a bathtub, which includes a cylinder body and the above-mentioned micro-nano bubble water generating device, the cylinder body is provided with a water return port and a release port, the water return pipe 2 is fixed to the water return port, and the release pipe 4 is fixed to the release port.

[0050] A dewatering device is provided at the bottom of the cylinder body, and the drainage pipeline 5 is connected to the drainage switch of the dewatering device.

[0051] Among them, a drainage joint 11 connected to the drainage pipeline 5 is provided at the bottom of the booster pump 1. The drainage joint 11 is provided with a small drainage hole of Ф1mm to 2mm. The drainage hole is connected to the return pipeline 2 and the drain switch of the bathtub drainer. This design can reduce the loss of the booster pump 1. The pressure generated forces the water to the release pipeline 4 to form water reflux, and the drainage function can be achieved after shutdown.

[0052] The bathtub water of this embodiment flows through the water return port, and the large diameter impurities are restricted by the filter 61 in the water return seat 6. When it reaches the venturi pipe section 21, it generates negative pressure to absorb air through contraction and diffusion. After preliminary mixing, it reaches the multi-stage booster pump 1 and passes through the superimposed cutting of the first-stage impeller, the second-stage impeller, and the third-stage impeller so that the gas and liquid are fully dissolved to reach the cavitation state. Then, it is slowly released into the bathtub through the release head 7 to mix with the clean water in the cylinder body. After continuous circulation for about 1 minute, the water in the entire bathtub can reach a milky white state.

[0053] The bathtub of this embodiment has the functions of filtering the return water pipe 2 and draining the return water pipe and the booster pump 1, which can avoid the clogging of the release head 7 and cause the micro-nano bubble water failure, and the operation stability of the micro-nano bubble water generating device is good.

[0054] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A micro-nano bubble water generating device, characterized in that: Including booster pump, return pipe, air intake pipe, release pipe and drainage pipe; The return water pipeline is connected to the air intake pipeline and the inlet of the booster pump in sequence along the water flow direction, and the release pipeline is connected to the outlet of the booster pump; A filter is provided in the return water pipeline; The drainage pipeline is communicated with the bottom of the return pipeline and the bottom of the booster pump.

2. The micro-nano bubble water generating device according to claim 1, characterized in that: The release pipeline is a flexible pipeline.

3. The micro-nano bubble water generating device according to claim 1 or 2, characterized in that: A release head for connecting to a bathtub is provided at the end of the release pipeline, a release sheet and a screen are provided in the release head, a release hole is provided on the release sheet, and the screen is provided on the water outlet side of the release hole.

4. The micro-nano bubble water generating device according to claim 3, characterized in that: The release head includes a first seat body, a first surface cover, a first positioning core, and a locking piece. The first positioning core and the locking piece are both arranged in the first seat body. The two ends of the first positioning core are respectively connected to the first seat body and the locking piece. The locking piece locks the release sheet in the first positioning core. The screen is arranged between the locking piece and the first surface cover, or is clamped with the inner wall of the first surface cover.

5. The micro-nano bubble water generating device according to claim 4, characterized in that: The first surface cover is provided with a first cylindrical body portion extending into the first seat body, the inner wall of the first cylindrical body portion is provided with a first limiting step adapted to the screen, and the end of the first cylindrical body portion opposite to the locking piece is provided with a first slot, the screen is clamped with the inner wall of the first surface cover, and the locking piece presses the screen against the first limiting step.

6. The micro-nano bubble water generating device according to claim 1, characterized in that: A return seat for connecting to the bathtub is provided at the end of the return pipe, and the return seat includes a second seat body, a second surface cover, and a second positioning core. The second surface cover is provided with a second cylinder portion extending into the second seat body, and the inner wall of the second cylinder portion is provided with a second limiting step adapted to the filter screen. The filter screen is clamped with the inner wall of the second surface cover, and a second notch is provided at the end of the second cylinder portion opposite to the second positioning core. One end of the second positioning core is connected to the second seat body, and the other end presses the filter screen against the second limiting step.

7. The micro-nano bubble water generating device according to claim 1, characterized in that: The booster pump is a multi-stage booster pump, and at least two impellers are arranged in the booster pump along the inlet direction.

8. The micro-nano bubble water generating device according to claim 1, characterized in that: The return water pipeline is provided with a venturi pipe section, the venturi pipe section includes a contraction section, a throat section and an expansion section arranged in sequence, and the air intake pipeline is connected to the throat section of the venturi pipe section; The throat section is provided with a negative pressure air intake port, the two ends of the air intake pipeline are respectively connected to the atmosphere and the negative pressure air intake port, and the top end of the air intake pipeline is provided with a regulating valve for adjusting the airflow size.

9. A bathtub, characterized in that: It comprises a cylinder body and the micro-nano bubble water generating device according to any one of claims 1 to 8, wherein the cylinder body is provided with a water return port and a release port, the water return pipe is fixed to the water return port, and the release pipe is fixed to the release port.

10. The bathtub according to claim 9, characterized in that: A dewatering device is provided at the bottom of the cylinder body, and the drainage pipeline is connected to the drainage switch of the dewatering device.

Images