Novel micro-nano bubble shower head

Abstract

A novel micro-nano bubble shower head relates to the technical field of spraying devices and comprises a holding handle, a spraying head module detachably connected with the holding handle and a built-in water path penetrating through the holding handle and the spraying head module. A first physical filtering unit, a second physical filtering unit and a chemical hydrogen production unit are arranged in the holding handle, the first physical filtering unit and the second physical filtering unit are of detachable filtering structures, and the chemical hydrogen production unit is connected with the first physical filtering unit and the second physical filtering unit. The first physical filtering unit and the second physical filtering unit are respectively arranged at the upstream and the downstream of the chemical hydrogen production unit; the chemical hydrogen production unit is a porous reaction chamber, and a self-reaction hydrogen production and dechlorination module driven by water flow is arranged in the chemical hydrogen production unit; and the holding handle is in threaded connection with the spraying head module through the external threads and the internal thread grooves. The brush and the self-reaction module of the chemical hydrogen production unit synchronously release hydrogen molecules and adsorb residual chlorine, so that the electric leakage risk caused by electrochemical hydrogen production is avoided.

Description

Technical Field

[0001] This utility model relates to the field of spray device technology, and in particular to a novel micro-nano bubble shower head. Background Technology

[0002] Traditional handheld showerheads typically allow water to flow directly into the spray head through internal tubing within the handle. These showerheads have a simple structure, primarily focusing on even water distribution and basic rinsing. In recent years, however, multifunctional "health showerheads" have emerged to further enhance the health and beauty benefits of bathing.

[0003] For example, Chinese utility model patent CN221890132U discloses a detachable intelligent hydrogen-rich shower head, including a nozzle body and a handle connected to the lower end of the nozzle body. A partition is provided inside the nozzle body, with an electrolysis plate on one side and a battery compartment on the other. The electrolysis plate is detachably connected to the partition, and the battery compartment is detachably connected to the nozzle body. A water outlet assembly is provided on the side of the electrolysis plate away from the partition. A power supply unit is provided inside the battery compartment, with a power conductive contact protruding from the end face of the battery compartment near the partition. The power supply unit is connected to the power conductive contact. A conductive post runs through the partition, with one end of the conductive post abutting against the electrolysis plate and the other end abutting against the power conductive contact. The electrolysis plate is detachable and replaceable, ensuring the hydrogen production effect of the shower head.

[0004] Existing technologies require batteries or external power supplies to drive the electrolytic plates, which increases the cost of this application. Furthermore, in later use, if maintenance is needed, the waterproof performance of the device will be affected. Moreover, regardless of whether it is disassembled or not, electrical appliances working in a humid environment for a long time are prone to water leakage, short circuits, and damage, and may even pose safety problems to users. Utility Model Content

[0005] The technical problem this invention aims to solve is how to achieve stable hydrogen production and chlorine removal in a shower head without relying on electric power.

[0006] To achieve the above objectives, according to one aspect of the utility model, a novel micro-nano bubble shower head is provided, comprising a handle, a spray head module detachably connected to the handle, and an internal water channel connecting the two; the handle is provided with a first physical filtration unit, a second physical filtration unit, and a chemical hydrogen production unit, wherein the first physical filtration unit and the second physical filtration unit are detachable filtration structures, and the first physical filtration unit and the second physical filtration unit are respectively disposed upstream and downstream of the chemical hydrogen production unit; the chemical hydrogen production unit is a porous reaction chamber, which contains a water flow-driven self-reaction hydrogen production and dechlorination module; the handle and the spray head module are connected by an external thread and an internal thread groove.

[0007] As a preferred embodiment of the above technical solution, the grip handle is further provided with a modular installation chamber, which includes a detachably connected chamber body and a pressurizing seat. The first physical filtration unit, the second physical filtration unit, and the chemical hydrogen production unit are built into the chamber body. The pressurizing seat is located downstream of the second physical filtration unit and is detachably connected to the chamber body via a threaded structure.

[0008] As a preferred embodiment of the above technical solution, a pressure flange is formed on the outer side of the pressure seat, and the pressure flange abuts against the lower end face of the external thread of the spray head module; after the grip handle is threadedly engaged with the spray head module, the pressure flange is squeezed by the spray head module to generate an axial preload force to restrict the displacement of the combined installation chamber.

[0009] As a preferred embodiment of the above technical solution, a plurality of positioning ribs are fixedly provided on the inner wall of the main body of the chamber, and the positioning ribs extend axially; the upper end face of the positioning rib abuts against the lower end of the threaded structure of the pressure seat; the lower end of the positioning rib forms an insertion part and an abutment part, wherein the insertion part extends downward and forms an annular gap between the outer periphery of the first physical filtration unit and the inner wall of the main body of the chamber; the abutment part abuts against the upper end face of the first physical filtration unit; the axial path of the positioning rib avoids the porous reaction chamber of the chemical hydrogen production unit.

[0010] As a preferred embodiment of the above technical solution, both the first physical filtration unit and the second physical filtration unit include a filter screen frame and a filter screen sleeved around the filter screen frame, wherein a plurality of through holes are distributed axially at intervals on the periphery of the filter screen frame.

[0011] As a preferred embodiment of the above technical solution, a radial protrusion forms a mating flange on the outer peripheral wall of the first physical filter unit. The lower end of the main body of the chamber is open, and a limiting groove adapted to the mating flange is provided on the inner peripheral wall of the opening. A guide slope is also provided at the lower opening of the main body of the chamber. The guide slope extends axially upward and inward from the end face of the opening to the limiting groove. The guide slope is used to guide the mating flange to slide into the limiting groove during assembly.

[0012] As a preferred embodiment of the above technical solution, the spray head module further includes a spray head cavity and an adjustment component disposed inside the spray head cavity. The adjustment component includes a water distribution plate, a pressurized water jet plate, a direct jet plate, and a spray plate. The pressurized water jet plate, the direct jet plate, and the spray plate are coaxially arranged and embedded on the water distribution plate. The water distribution plate has a water inlet hole on its central axis, and a first guide groove, a second guide groove, and a third guide groove are distributed circumferentially on its bottom surface, which respectively connect the pressurized water jet plate, the direct jet plate, and the spray plate.

[0013] As a preferred embodiment of the above technical solution, an annular air intake gap is formed between the regulating component and the spray head cavity. The annular air intake gap is connected to the interior of the regulating component. When the water jet passes through the regulating component, a negative pressure is generated inside the regulating component, and air enters the regulating component through the annular air intake gap.

[0014] As a preferred embodiment of the above technical solution, the outer surface of the adjustment component is further provided with an adjustment lever, which is used to rotate the adjustment component relative to the spray head cavity.

[0015] As a preferred embodiment of the above technical solution, a sealing rubber ring is provided at the bottom of the external thread of the spray head module.

[0016] In summary, this utility model has the following advantages:

[0017] 1. By flushing with water and simultaneously releasing hydrogen molecules and adsorbing residual chlorine through the self-reaction module of the chemical hydrogen production unit, the risk of leakage caused by electrochemical hydrogen production is avoided; in addition, large particulate impurities are intercepted by the first physical filter upstream and hydrogen production reaction debris is intercepted by the second physical filter downstream, thus preventing the nozzle from clogging.

[0018] 2. By cooperating with the pressure flange and positioning rib of the combined chamber, the tightening pressure of the spray head is converted into an axial locking force on the first physical filter unit and the second physical filter unit, so as to achieve zero movement of the components under the impact of high-speed water flow and facilitate modular disassembly and maintenance.

[0019] 3. The adjustment component enables the shower head to have multiple adjustment modes. In addition, the Venturi negative pressure structure of the adjustment component actively draws in air and, combined with the filter layer cutting, generates micro-nano bubbles, thereby making the spraying mode more diverse to meet the needs of different people.

[0020] Further or other beneficial effects will be discussed in the embodiments. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 This is a front view of the structure of this utility model;

[0023] Figure 3 This is a half-sectional view of the present invention;

[0024] Figure 4 for Figure 3 Enlarged view of area A;

[0025] Figure 5 for Figure 3 Enlarged view of area B;

[0026] Figure 6 This is an exploded view of the internal structure of the spray head module;

[0027] Figure 7 This is a schematic diagram of the water distribution plate structure;

[0028] Figure 8 This is a schematic diagram showing the connection between the water distribution plate and the water inlet plate.

[0029] Among them, 1-handle, 111-first physical filtration unit, 1111-annular mating flange, 11a-filter frame, 11b-filter, 12-chemical hydrogen production unit, 112-second physical filtration unit, 13-combined installation chamber, 131-chamber body, 1312-limiting groove, 1313-guide slope, 132-pressure seat, 1321-pressure flange, 14-positioning rib, 141-insertion part, 142-abutment part. 15-Annular elastic gasket, 2-Spray head module, 2a-Annular air inlet gap, 21-Spray head cavity, 22-Adjusting component, 221-Water distribution plate, 2211-Water inlet hole, 2212-First guide channel, 2213-Second guide channel, 2214-Third guide channel, 222-Pressurized water jet plate, 223-Direct spray plate, 2231-Filter layer, 224-Spray plate, 225-Adjusting lever, 23-Water inlet plate and 3-Built-in water channel. Detailed Implementation

[0030] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0031] The present invention will be further explained below with reference to the embodiments:

[0032] Example:

[0033] A novel micro-nano bubble shower head, please refer to Figures 1-5It includes a handle 1, a spray head module 2, and an internal water channel connecting the two. The handle 1 is a hollow tubular shell, and its interior is provided with a first physical filtration unit 111, a chemical hydrogen production unit (not shown in the figure), and a second physical filtration unit 112 along the water flow direction. The first physical filtration unit 111 is located above the inlet of the flow channel. The first physical filtration unit 111 and the second physical filtration unit 112 are detachable filtration structures. The first physical filtration unit 111 and the second physical filtration unit 112 are respectively located upstream and downstream of the chemical hydrogen production unit. The chemical hydrogen production unit is a porous reaction chamber filled with a self-reactive hydrogen production and dechlorination module composed of magnesium-based particles and calcium sulfite. When this module comes into contact with the water flow, it releases hydrogen and adsorbs residual chlorine. The upper inner wall of the handle 1 has an internal thread, while the lower inner wall of the spray head module 2 has an external thread at the corresponding position. The external thread of the spray head module 2 penetrates into the handle 1 and forms a fit with the internal thread of the handle 1. The two are axially locked by clockwise screwing. In addition, a sealing rubber ring is provided at the bottom of the external thread of the spray head module 2. After the external thread of the spray head module 2 and the internal thread of the handle 1 are tightened, a double seal is formed.

[0034] In fact, in this application, both the first physical filtration unit 111 and the second physical filtration unit 112 include a filter screen frame 11a and a filter screen 11b sleeved around the filter screen frame 11a. The filter screen frame has a number of through holes distributed axially along its periphery. Based on the above design, sediment, rust, and filter media can be filtered out at the first physical filtration unit 111, while debris generated by the reaction of water with the self-reaction hydrogen production and dechlorination module can be filtered out in the second physical filtration unit 112, ensuring that the water entering the spray head module 2 is free of solid impurities, thereby preventing the water outlet of the spray head from being blocked.

[0035] In this application, "upstream" and "downstream" are defined based on the relative positions of the water flow direction. Specifically, when water flows in from the inlet at the bottom of the handle 1, passes through the internal processing unit, and is sprayed out by the spray head module 2, the component closer to the inlet in the water flow path is the upstream component, and the component closer to the outlet of the spray head module 2 is the downstream component.

[0036] Reference Figure 4Furthermore, the handle 1 also includes a modular installation chamber 13, which comprises a detachably connected chamber body 131 and a pressure seat 132. A first physical filtration unit 111, a second physical filtration unit 112, and a chemical hydrogen production unit are housed within the chamber body 131. The pressure seat 132 is located downstream of the second physical filtration unit 112 and is detachably connected to the chamber body 131 via a threaded structure. Specifically, a pressure flange 1321 is formed on the outer side of the pressure seat 132, and the pressure flange 1321 abuts against the lower end face of the external thread of the spray head module 2. After the handle 1 and the spray head module 2 are threadedly engaged, the pressure flange 1321 is compressed by the spray head module 2, generating an axial preload force that restricts the displacement of the modular installation chamber 13.

[0037] Reference Figure 4 and Figure 5 Three positioning ribs 14 are fixedly arranged circumferentially on the inner wall of the main body 131 of the chamber, and the positioning ribs 14 extend axially. The upper end face of the positioning rib 14 abuts against the lower end of the threaded structure of the pressure seat 132. The lower end of the positioning rib 14 forms an insertion part 141 and an abutment part 142, wherein the insertion part 141 extends downward and forms an annular gap between the outer periphery of the first physical filtration unit 111 and the inner wall of the main body 131 of the chamber; the abutment part 142 abuts against the upper end face of the first physical filtration unit 111; the axial path of the columnar positioning rib 14 avoids the porous reaction chamber of the chemical hydrogen production unit.

[0038] In summary, when the user rotates to install the spray head module 2, the external thread of the spray head module 2 engages with the internal thread of the grip handle 1 until the lower end face of the spray head module 2 presses against the pressure flange 1321 of the pressure seat 132. During this process, the axial pressure of the spray head module 2 on the pressure seat 132 is transmitted to the columnar positioning rib 14 through the threaded structure, and is ultimately converted into a vertical locking force on the first physical filter unit 111. This prevents the overall filtration structure, consisting of the first physical filter unit 111, the second physical filter unit 112, the chemical hydrogen production unit, and the combined installation chamber 13, from axial movement or radial displacement under the impact of high-speed water flow. At the same time, the avoidance design of the columnar positioning rib 14 ensures that the reaction chamber of the chemical hydrogen production unit is not affected by structural interference, maintaining hydrogen production efficiency. In addition, the first filter unit has a risk of radial sway due to the gap. The insertion part 141 of the columnar positioning rib 14 is inserted into the gap to eliminate radial freedom; the abutment part 142 presses against the upper end face to restrict axial displacement.

[0039] Reference Figure 5Furthermore, the outer peripheral wall of the first physical filtration unit 111 has a radially protruding annular fitting flange 1111. The lower end of the main body 131 is open, and a limiting groove 1312 adapted to the fitting flange 1111 is provided on the inner peripheral wall of the opening. A guide slope 1313 is also provided at the lower opening of the main body 131. The guide slope 1313 extends axially upward and inward from the end face of the opening to the limiting groove 1312. The guide slope 1313 is used to guide the fitting flange 1111 to slide into the limiting groove 1312 during assembly. When the fitting flange 1111 is embedded in the limiting groove 1312, the fitting flange 1111 is completely stuck in the limiting groove 1312 to form an axial limiting fit, and its radial inner side forms a lateral constraint with the inner wall of the limiting groove 1312. Specific installation operation: When installing the first physical filter unit 111, insert it into the lower opening of the main body 131, so that the outer surface of the mating flange 1111 contacts the guide slope 1313 at the opening. When the first physical filter unit 111 is pushed forcefully, the mating flange 1111 slides upward along the guide slope 1313 and retracts inward until the mating flange 1111 passes the highest point of the limiting recess 1312 to complete the engagement. However, in this embodiment, the mating flange 1111 and the limiting recess 1312 structure are used to fix the lower half of the first physical filter unit 111 relative to the main body 131. The upper half of the first physical filter unit 111 may still sway under the scouring of high-pressure water. At this time, the cooperation with the columnar positioning rib 14 mentioned above can further strengthen the relative positional fixation relationship between the first physical filter unit 111 and the main body 131. Of course, it is also relatively convenient to disassemble and assemble the two, and there will be no situation where it is difficult or impossible to disassemble.

[0040] Reference Figure 5 An annular elastic gasket 15 is provided between the bottom of the first physical filter unit 111 and the end face of the water inlet. The outer diameter of the annular elastic gasket 15 is larger than the outer circumferential diameter of the first physical filter unit 111, and more specifically, larger than the outer circumferential diameter of the main body 131. The upper end face of the annular elastic gasket 15 abuts against the lower end face of the first physical filter unit 111 and simultaneously against the lower end face of the main body 131. Silicone O-rings are provided at the contact points between the main body 131, the first physical filter unit 111, and the annular elastic gasket 15 for waterproof sealing. The inner diameter of the annular elastic gasket 15 is aligned with the water passage hole of the filter screen frame 11a. The annular elastic gasket 15 contacts and abuts against the bottom of the internal cavity of the handle 1 (outside the combined installation chamber 13). The design of the annular elastic gasket 15 can buffer mechanical vibration, reduce noise and component wear. At the same time, because the outer diameter of the annular gasket covers the outer perimeter of the filter screen, it can cut off the leakage path to a certain extent.

[0041] Reference Figures 6-8The spray head module 2 also includes a spray head cavity 21 and an adjustment component 22 disposed inside the spray head cavity 21. The adjustment component 22 includes a water distribution plate 221, a pressurized water jet plate 222, a direct spray plate 223, and a spray plate 224. The pressurized water jet plate 222, the direct spray plate 223, and the spray plate 224 are coaxially arranged and embedded on the water distribution plate 221. The water distribution plate 221 has a water inlet hole 2211 on its central axis. The bottom surface has a first guide groove 2212, a second guide groove 2213, and a third guide groove 2214 distributed circumferentially, which respectively connect to the pressurized water jet plate 222, the direct spray plate 223, and the spray plate 224, corresponding to the pressurized water jet mode, the direct spray mode, and the spray mode, respectively.

[0042] More specifically, it also includes a water inlet plate 23, which is fixedly mounted on the spray head cavity 21. The water inlet plate 23 is provided with a pair of water passage holes, while the water distribution plate 221 is actually provided with three pairs of water passage holes. Each pair of water passage holes corresponds to the first guide groove 2212, the second guide groove 2213, and the third guide groove 2214, respectively. When the entire adjustment assembly 22 rotates relative to the spray head cavity 21, the water passage holes of the water inlet plate are aligned with at most one pair of water passage holes, thereby realizing adjustment in three modes.

[0043] An annular air inlet gap 2a is formed between the regulating component 22 and the spray head cavity 21. The annular air inlet gap 2a is connected to the inside of the regulating component 22. When the water jet passes through the regulating component 22, a negative pressure is generated inside the regulating component 22, and air enters the regulating component through the annular air inlet gap 2a. A filter layer 2231 for cutting air and water is also provided on the direct spray plate 223.

[0044] After the entire shower head is connected to the water pipe, the water flows through the built-in water circuit. When the water flows through the regulating component 22, the flow channel narrows, causing the water flow speed to increase. According to the Venturi principle, air will be drawn in from the annular air intake gap 2a. When the air and water flow are fully mixed, and then the air and water are cut by the filter layer 2231, bubble water can be produced. This is air bubble water.

[0045] In this embodiment, the pressurized water jet mode and spray mode release hydrogen-rich water, while the direct injection mode releases hydrogen-rich microbubble water.

[0046] In addition, an adjustment lever 225 is provided on the outer surface of the adjustment component 22. The adjustment lever 225 is used to rotate the adjustment component 22 relative to the spray head cavity 21. The adjustment lever 225 is provided to facilitate switching between the three modes of the shower head.

[0047] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A novel micro-nano bubble shower head, characterized in that, It includes a grip (1), a spray head module (2) detachably connected to the grip (1), and an internal water passage connecting the two; The handle (1) is provided with a first physical filtration unit (111), a second physical filtration unit (112), and a chemical hydrogen production unit (12). The first physical filtration unit (111) and the second physical filtration unit (112) are detachable filtration structures. The first physical filtration unit (111) and the second physical filtration unit (112) are respectively located upstream and downstream of the chemical hydrogen production unit. The chemical hydrogen production unit is a porous reaction chamber with a built-in water flow-driven self-reaction hydrogen production and dechlorination module. The handle (1) and the spray head module (2) are connected by an external thread and an internal thread groove.

2. The novel micro-nano bubble shower head according to claim 1, characterized in that, The grip (1) is also provided with a modular installation chamber (13), which includes a detachably connected chamber body (131) and a pressurizing seat (132). The first physical filtration unit (111), the second physical filtration unit (112) and the chemical hydrogen production unit are built into the chamber body (131). The pressurizing seat (132) is located downstream of the second physical filtration unit (112), and the pressurizing seat (132) is detachably connected to the chamber body (131) through a threaded structure.

3. The novel micro-nano bubble shower head according to claim 2, characterized in that, A pressure flange (1321) is formed on the outer side of the pressure seat (132), and the pressure flange (1321) abuts against the lower end face of the external thread of the spray head module (2); after the grip handle (1) is threadedly engaged with the spray head module (2), the pressure flange (1321) is squeezed by the spray head module (2) to generate an axial preload force to restrict the displacement of the combined installation chamber (13).

4. A novel micro-nano bubble shower head according to claim 2, characterized in that, A plurality of positioning ribs (14) are fixedly provided on the inner wall of the main body of the chamber (131), and the positioning ribs (14) extend axially; the upper end face of the positioning ribs (14) abuts against the lower end of the threaded structure of the pressure seat (132); the lower end of the positioning ribs (14) forms an insertion part (141) and abutting part (142), wherein the insertion part (141) extends downward and forms an annular gap between the outer periphery of the first physical filtration unit (111) and the inner wall of the main body of the chamber (131); the abutting part (142) abuts against the upper end face of the first physical filtration unit (111); the axial path of the positioning ribs (14) avoids the porous reaction chamber of the chemical hydrogen production unit.

5. A novel micro-nano bubble shower head according to claim 1, characterized in that, Both the first physical filtration unit (111) and the second physical filtration unit (112) include a filter frame (11a) and a filter (11b) sleeved around the filter frame (11a). The filter frame (11a) has a plurality of through holes spaced apart along the axial direction on its periphery.

6. A novel micro-nano bubble shower head according to claim 2, characterized in that, The first physical filter unit (111) has a radially protruding flange (1111) on its outer peripheral wall. The lower end of the chamber body (131) is open and a limiting groove (1312) adapted to the flange (1111) is provided on the inner peripheral wall of the opening. A guide slope (1313) is also provided at the lower opening of the chamber body (131). The guide slope (1313) extends axially upward and inward from the opening end face to the limiting groove (1312). The guide slope (1313) is used to guide the flange (1111) to slide into the limiting groove (1312) during assembly.

7. A novel micro-nano bubble shower head according to claim 1, characterized in that, The spray head module (2) further includes a spray head cavity (21) and an adjustment component (22) disposed inside the spray head cavity (21). The adjustment component (22) includes a water distribution plate (221), a pressurized water jet plate (222), a direct spray plate (223), and a spray plate (224). The pressurized water jet plate (222), the direct spray plate (223), and the spray plate (224) are coaxially arranged and embedded on the water distribution plate (221). The water distribution plate (221) has a water inlet hole (2211) on its central axis, and a first guide groove (2212), a second guide groove (2213), and a third guide groove (2214) are distributed circumferentially on its bottom surface, which respectively connect the pressurized water jet plate (222), the direct spray plate (223), and the spray plate (224).

8. A novel micro-nano bubble shower head according to claim 7, characterized in that, An annular air inlet gap (2a) is formed between the regulating component (22) and the spray head cavity (21). The annular air inlet gap (2a) is connected to the interior of the regulating component (22). When the water jet passes through the regulating component (22), a negative pressure is generated inside the regulating component (22), and air enters the regulating component through the annular air inlet gap (2a).

9. A novel micro-nano bubble shower head according to claim 7, characterized in that, The outer surface of the adjustment component (22) is also provided with an adjustment lever (225), which is used to rotate the adjustment component (22) relative to the spray head cavity (21).

10. A novel micro-nano bubble shower head according to claim 1, characterized in that, The bottom of the external thread of the spray head module (2) is provided with a sealing rubber ring.

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