Water discharge device
The water discharge device uses a Venturi tube and divided member to generate negative pressure for effective soap foaming and rinsing, addressing poor foaming and residue issues in existing shower heads.
Patent Information
- Application Number
- JP2025004275U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2025-08-07
- Filing Date
- 2025-12-10
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-12-10
AI Technical Summary
Existing shower heads with Venturi tubes fail to effectively foam liquid body soap with water, leading to poor cleaning efficacy and residue on the skin.
A water discharge device with a Venturi tube, a liquid storage box, and a first divided member with larger-than-minimum-diameter holes, generating negative pressure to mix and foam soap with water, ensuring efficient mixing and easy rinsing.
The device creates dense, milky foam without external tools, facilitating easy removal of soap residues, while maintaining optimal water flow rates and preventing clogging.
Smart Images

Figure 0003254688000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to the technical field of sanitary equipment, in particular to a water discharge device. [Background technology]
[0002] Showers are a vital part of daily life, providing a relaxing and clean environment for both the body and mind. However, showering requires the use of consumables such as body wash, which can remove sweat, sebum, dust, and waste products from the skin while also providing a pleasant fragrance for mood adjustment. However, liquid body soaps are often applied to the body by hand or using a bath ball or similar device, which can be time-consuming.
[0003] Therefore, related technology has proposed a shower head that has a Venturi tube inside the outer shell and also has a liquid storage box. When the water flows through the Venturi tube, negative pressure is generated, forcing the liquid body soap from the storage box into the water channel, allowing the liquid body soap to mix with the water flow. However, because the liquid body soap is mixed with the water flow and then discharged directly through the shower head's outlet, it is difficult to generate foam, reducing the cleaning effect of the liquid body soap. In addition, because the liquid body soap does not foam sufficiently, it is prone to remain on the body, and vigorously scrubbing is required to avoid clogging of pores due to residual liquid body soap. Summary of the Invention [Problem to be solved by the invention]
[0004] The present utility model aims to provide a water discharge device that solves the problem of poor foaming effect after mixing liquid body soap with water. [Means for solving the problem]
[0005] To achieve this objective, the present utility model: a liquid storage box; a Venturi tube having a first liquid supply port for communicating with an external water supply pipe, a second liquid supply port communicating with the liquid storage box, and a liquid discharge port; a first water discharge cavity having an air supply hole communicating with the outside and a first water discharge port, and also having a first water supply port communicating with the liquid discharge port; and a first divided member having a first divided member disposed within the first water discharge cavity and located between the first water discharge port and the first water supply port, and having a plurality of divided holes each having an area larger than the minimum pipe diameter of the Venturi tube. Adopt the technical proposal for the water discharge device.
[0006] In one embodiment, the first partition member is configured as a groove-like structure, the groove opening of the first partition member is arranged facing away from the first water outlet, and the multiple partition holes are arranged at intervals on the side wall of the first partition member along the circumferential direction.
[0007] In one embodiment, the groove bottom wall of the first divided member is provided with a protrusion whose circumferential length gradually increases from one end of the first divided member near the groove opening to the other end.
[0008] In one embodiment, the dividing holes are configured as rectangular holes.
[0009] In one embodiment, the first divided member is closer to the first water outlet than the first water inlet.
[0010] In one embodiment, the water discharger further includes a second divided member disposed between the first divided member and the first water discharge port and employing a filtering net.
[0011] In one embodiment, the water discharge device further includes a second water discharge cavity having a second water discharge port communicating with the outside world and a second water supply port for communicating with the external water supply pipeline, and a switching valve selectively communicating with the first water supply port or the second water supply port.
[0012] In one embodiment, the water discharger further includes a water discharger body in which the liquid storage box, the first water discharger cavity, the Venturi tube, and the second water discharger cavity are all integrated.
[0013] In one embodiment, the Venturi tube is provided within the water discharge body.
[0014] In one embodiment, the water discharger further comprises a handle provided on one side of the water discharger body.
[0015] In one embodiment, a gravity-type liquid suction ball is movably disposed within the liquid reservoir and communicates with the Venturi tube. [Effects of the Invention]
[0016] The beneficial effects of this utility model are as follows: The water discharge device has a first dividing member downstream of the Venturi tube. After the water flows through the Venturi tube, the flow speed of the water is fastest at the throat of the Venturi tube according to the Venturi principle, generating negative pressure. The negative pressure pushes the consumables from the liquid storage box into the Venturi tube and mixes with the water. As the water flows downstream to the first discharge cavity, the dividing holes in the first dividing member act to divide the water into multiple water columns, and the water flows through the first dividing member. Even after flowing, a certain amount of negative pressure is generated, and air is sucked into the first water outlet cavity through the air inlet, promoting the mixing and foaming of the consumables and water flow, so that the water spray flowing out of the first water outlet is milky white with dense foam. On the one hand, it eliminates the need to use external objects to create foam during bathing, and on the other hand, the consumables that have been thoroughly mixed and foamed can be easily washed off the skin with clean water, reducing the possibility of the consumables remaining on the skin. In addition, because the area of the dividing hole is larger than the minimum diameter of the Venturi tube, flow restriction at the dividing hole can be avoided and the flow rate at the throat of the Venturi tube is ensured to be greater than the flow rate at the dividing hole, preventing the Venturi tube from failing to suck in the consumables. [Brief explanation of the drawings]
[0017] [Figure 1] 1 is a structural schematic diagram of a water discharge device according to an embodiment of the present invention. [Figure 2] 1 is a cross-sectional view of a water discharge device according to an embodiment of the present invention at one angle. [Figure 3] 10 is a cross-sectional view of the water discharge device according to the embodiment of the present invention from another angle. FIG. [Figure 4] 10 is a cross-sectional view of the water discharge device according to the embodiment of the present invention at a further angle. [Figure 5] FIG. 5 is an enlarged schematic view of a portion A in FIG. [Figure 6] 2 is a schematic diagram of the three-dimensional structure of a first divided member according to an embodiment of the present invention. FIG. [Figure 7] FIG. 2 is a structural schematic diagram of a first water discharge lid according to an embodiment of the present utility model. DETAILED DESCRIPTION OF THE INVENTION
[0018] The present invention will be described in more detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are merely for the purpose of illustrating the present invention and do not limit the present invention. For the sake of convenience, the drawings show only parts relevant to the present invention, rather than all of the structures.
[0019] In the description of this utility model, unless otherwise clearly defined and limited, the terms "connect," "couple," and "fix" should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated, may be mechanically connected, or electrically connected, may be directly connected, or indirectly connected via an intermediate medium, or may be an internal communication between two elements or an interactive relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model in specific situations.
[0020] In this utility model, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include direct contact between the first and second features, or contact between the first and second features via another feature between them. Furthermore, a first feature being "above," "above," and "on the upper surface" of a second feature may include the first feature being directly above and diagonally above the second feature, or simply mean that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," and "on the lower surface" of a second feature may include the first feature being directly below and diagonally below the second feature, or simply mean that the horizontal height of the first feature is lower than that of the second feature.
[0021] In the description of this embodiment, the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are merely used to facilitate the description and simplify the operation. They do not necessarily indicate or suggest that such devices or elements must have a specific orientation, be configured and operated in a specific orientation, and should not be understood as limiting this utility model. In addition, the terms "first" and "second" are merely used to distinguish between the two in the description and do not have any special meaning.
[0022] As shown in Figures 1 to 7, an embodiment of this utility model proposes a water discharge device comprising a Venturi tube 7, a liquid storage box 2, a first water discharge cavity 3, and a first divided member 30. A liquid consumable product with a cleansing effect is stored in the liquid storage box 2. The consumable product may be liquid body soap or liquid hand soap, and can be mixed with a water flow to form a foam. To facilitate adding consumable products to the liquid storage box 2, the liquid storage box 2 comprises a box body 21 and a box lid 22. The box lid 22 is detachably connected to the box body 21 using a method that is not limited to a fastening or bolt connection. When adding consumable products, the consumable product can be refilled into the box body 21 simply by removing the box lid 22. The Venturi pipe 7 has a first liquid supply port 71 for communicating with an external water supply pipe, a second liquid supply port 72 communicating with the liquid storage box 2, and a liquid discharge port 73 communicating with a first water supply port (not shown) provided in the first water discharge cavity 3, and the first water discharge cavity 3 is provided with an air supply hole 323 communicating with the outside world and a first water discharge port 321, and a plurality of first water discharge ports 321 may be provided, and the first divided member 30 is The air inlet 323 is located within the first water discharge cavity 3 and is positioned between the first water supply port and the first water discharge port 321, and the first divided material 30 has a plurality of dividing holes 302, the area of each of which is larger than the minimum pipe diameter of the Venturi tube 7, i.e., larger than the cross-sectional area of the narrowest part (throat portion) of the Venturi tube 7.
[0023] In the water discharge device, a first divided member 30 is provided in the first water discharge cavity 3 at the downstream end of the Venturi tube 7. After the water flows through the Venturi tube 7, the flow velocity of the water becomes the fastest at the throat of the Venturi tube 7 according to the Venturi principle, and negative pressure is generated. The negative pressure pushes the consumables from the liquid storage box 2 into the Venturi tube 7 and mixes with the water flow. As the water flows downstream to the first water discharge cavity 3, the water flow is divided into multiple water columns under the action of the dividing holes 302 in the first divided member 30. This also generates a certain amount of negative pressure, causing air to be sucked into the first water discharge cavity 3 through the air inlet 323, promoting the mixing and foaming of the consumables and the water flow, so that the water spray flowing out of the first water discharge port 321 is milky white with dense foam. On the one hand, this eliminates the need to use external objects to create foam during the bathing process, and on the other hand, the consumables that have been thoroughly mixed and foamed can be easily washed off the skin by rinsing them with a stream of clean water, reducing the possibility of the consumables remaining on the skin.
[0024] Furthermore, since the area of each of the divided holes 302 is larger than the minimum pipe diameter of the Venturi tube 7, flow rate restriction at the divided holes 302 can be avoided, and the flow rate of the water flow at the minimum pipe diameter of the Venturi tube 7 is ensured to be larger than the flow rate of the water flow at the divided holes 302, preventing the Venturi tube 7 from being unable to perform its function of sucking in consumables (if the area of the divided holes 302 is not too small, there will be no relative expansion space for the Venturi tube 7, and the pressure in the water channel will not be able to be released, static pressure will be generated, the frictional force of the water flow will increase, energy will be lost, the flow rate will be reduced, and as a result, the Venturi tube 7 will not be able to suck in consumables).
[0025] 5 and 6, the first divider 30 has a groove-like structure, with its groove opening facing away from the first water outlet 321. The water flows into the first divider 30 through the groove opening and then flows out of the first divider 30 through the dividing holes 302, which are spaced apart in the circumferential direction on the side wall of the first divider 30. More specifically, the dividing holes 302 are rectangular holes, and when the area is the same, the outer surface area of each water flow divided by the rectangular holes is large, resulting in more sufficient contact with air and denser bubbles being generated, resulting in a better foaming effect.
[0026] In addition, a protrusion 301 is provided on the bottom wall of the groove of the first divided member 30, the circumference of which gradually increases in length from one end near the groove opening of the first divided member 30 to the other end, thereby dividing the water flow so that the water flows evenly through each dividing hole 302.
[0027] In order to reduce the possibility that the bubbles formed by the first divided member 30 will disappear, the first divided member 30 is closer to the first water outlet 321 than the first water supply port, and thus the distance between the first divided member 30 and the first water outlet 321 is reduced, allowing the bubbles formed by the first divided member 30 to quickly flow out through the first water outlet 321. For example, the first divided member 30 is abutted against the first water outlet 321.
[0028] In one embodiment, the water discharger further includes a second divided member 40 provided between the first divided member 30 and the first water discharge port 321, which further divides the water flow, forming denser bubbles, and the second divided member 40 employs a filter net to reduce interference with the air suction action of the first divided member 30 and the liquid suction action of the Venturi tube 7. Specifically, the second divided member 40 employs a filter net with a mesh number between 30 and 50 mesh. Filter nets within this mesh number range have a high density of filter holes, and have little effect on restricting the water flow.
[0029] As shown in Figures 2 to 4, in order to meet the diverse usage needs of users, the water discharge device further comprises a second water discharge cavity 4 having a second water discharge outlet 421 communicating with the outside world and a second water supply port (not shown) for communicating with an external water supply pipe, and a switching valve 6, the specific shape of which is not limited thereto, that can selectively connect the external water supply pipe to the first liquid supply port 71 of the Venturi tube 7, or the external water supply pipe to the second water supply port of the second water discharge cavity 4. When the external water supply pipe is connected to the first water supply port 71 of the Venturi pipe 7, the water flow flows through the Venturi pipe 7, and under the action of negative pressure, the consumables are pushed into the Venturi pipe 7 and mixed with the water flow, and the water flow mixed with the consumables flows out from the first water outlet 321, at this time the water discharge device provides the user with foam formed by the mixture of the consumables and water; when the external water supply pipe is connected to the second water supply port, the water flow flows through the second water discharge cavity 4 and then directly to the second water outlet 421, at this time the water discharge device provides the user with a stream of clean water to wash away the foam formed by the consumables adhering to the human skin.
[0030] In order to increase the integration of the water discharger, the water discharger further comprises a water discharger main body 1 in which the liquid storage box 2, the first water discharge cavity 3, the Venturi tube 7, and the second water discharge cavity 4 are all integrated. In one embodiment, the Venturi tube 7 is provided within the water discharger main body 1 to reduce the volume of the water discharger, and a first connecting passage 11 is provided within the water discharger main body 1 to connect the Venturi tube 7 to an external water supply pipe.
[0031] Specifically, in order to reduce the difficulty of assembling the Venturi tube 7, an attachment passage 12 that communicates with the first connecting passage 11 is also provided within the water discharge body 1, and the attachment passage 12 communicates with the liquid storage box 2 via a communication hole 14. An annular abutment portion 15 is provided on the inner wall of one end of the attachment passage 12 that is connected to the first connecting passage 11, and one end of the Venturi tube 7 where the first liquid supply port 71 is provided abuts against the abutment portion 15, and the other end of the Venturi tube 7 where the liquid discharge port 73 is provided abuts against a position control sleeve 20 inserted and fixed within the attachment passage 12, and the position control sleeve 20 connects the Venturi tube 7 to the first water discharge cavity 3.
[0032] At the same time, the liquid storage box 2 and the second water discharge cavity 4 are respectively provided on opposite sides of the water discharge main body 1, and the first water discharge cavity 3 is located in a relief hole provided in the center of the second water discharge cavity 4 in order to provide a wider range of fresh water flow to the user and improve cleaning efficiency. More specifically, the second water discharge cavity 4 comprises a second water discharge lid 42 and a second water supply lid 41, the second water supply lid 41 is fixedly connected to the water discharge main body 1, the second water supply lid 42 is provided on the side of the second water supply lid 41 facing away from the liquid storage box 2, and is fitted with the second water supply lid 41 to form the second water discharge cavity 4, the second water supply port is provided in the second water supply lid 41, while the second water discharge port 421 is provided in the second water discharge lid 42. The first water discharge cavity 3 comprises a first water supply lid 31 and a first water discharge lid 32, of which the first water supply lid 31 is fixed to the water discharge main body 1, for example the first water supply lid 31 is integrally formed with the water discharge main body 1, whereas the first water discharge lid 32 is detachably connected to the second water discharge lid 42 and, together with the first water supply lid 31, forms the first water discharge cavity 3 that houses the first divided member 30 and the second divided member 40. The first water discharge port 321 and the air supply hole 323 are provided in the first water discharge lid 32, and the first water supply port is provided in the first water supply lid 31.
[0033] As shown in Figure 3, the water discharge device further comprises a mounting sleeve 10, the outer wall of which is provided with a male thread and the inner wall of the escape hole with a female thread, so that the mounting sleeve 10 and the second water discharge lid 42 are connected by screws, and at the same time, a position-regulating step is provided inside the mounting sleeve 10, and the first water discharge lid 32 is inserted into the mounting sleeve 10 and abuts against the position-regulating step, which restricts the position of the first water discharge lid 32 in one direction and prevents the first water discharge lid 32 from separating from the mounting sleeve 10 in a direction away from the water discharge main body 1. An annular engagement groove 322 is provided on the inner wall of the first water discharge lid 32, and the first separate member 30 is engaged within the engagement groove 322.
[0034] In order to allow water to flow more efficiently through the second partition 40, a ring-shaped boss 324 is also provided on the side of the first partition 32 facing the second partition 40, and a protruding position control portion 303 is provided on the side of the first partition 30 facing the second partition 40, and both opposing side surfaces of the second partition 40 abut against the position control portion 303 and boss 324, respectively, so that there are gaps between the second partition 40 and the first partition 30 and between the second partition 40 and the first partition 30 and the first partition lid 32.
[0035] In addition, a gap also exists between the first water spouting lid 32 and the mounting sleeve 10 to allow air to smoothly enter the first water spouting cavity 3 through the air supply hole 323.
[0036] During a normal shower, some users have the habit of holding the water discharge device in their hand to flexibly adjust the angle of the water discharge device. Taking this into consideration, the water discharge device further comprises a handle 5, which is provided on one side of the water discharge body 1 for easy holding, and a switching valve 6 is provided on the handle 5, which is provided with a first water supply passage 51 that connects the external water supply pipe to the first connecting passage 11, and a second water supply passage 52 that connects the external water supply pipe to the second water discharge chamber, and by adjusting the switching valve 6, the first water supply passage 51 and the second water supply passage 52 can selectively be connected to the external water supply pipe.
[0037] Furthermore, a gravity-type liquid suction ball 8 is movably provided within the liquid storage box 2. The gravity-type liquid suction ball 8 communicates with the Venturi tube 7 and, under the action of its own gravity, is always positioned below the boundary surface of the consumables within the liquid storage box 2, thereby ensuring that the consumables can be sucked in and pushed out into the Venturi tube 7. Specifically, the gravity-type liquid suction ball 8 is provided within the liquid storage box 2 via a liquid suction tube 9. The liquid suction tube 9 has a fixed part 91 and a movable part 92, of which the fixed part 91 is fixedly provided within the liquid storage box 2, and the movable part 92 is made of a flexible material, one end of which is connected to the fixed part 91 and the other end of which is connected to the gravity-type liquid suction ball 8. More specifically, the movable part 92 is inclined upward from its end connected to the gravity-type liquid suction ball 8 to its end connected to the fixed part 91. In this way, when there is no water flow through the Venturi tube 7, the consumables within the liquid storage box 2 are unlikely to enter the Venturi tube 7, reducing the possibility of the consumables being consumed when the showerhead is not in use.
[0038] Of course, the above examples of the present invention are merely enumerated to clearly explain the present invention, and do not limit the embodiments of the present invention. Those skilled in the art can make various obvious changes, adjustments, and substitutions without departing from the scope of protection of the present invention. There is no need or method to cover all the embodiments here. All modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention. [Explanation of symbols]
[0039] In the figure: DESCRIPTION OF SYMBOLS 1....Water discharge body, 11....First connecting passage, 12....Mounting passage, 14....Communicating hole, 15....Abutment part, 2....Liquid storage box, 21....Box body, 22....Box lid, 3....First water discharge cavity, 31....First water supply lid, 32....First water discharge lid, 321....First water discharge port, 322....Engaging groove, 323....Air supply hole, 324....Boss, 4....Second water discharge cavity, 41....Second water supply lid, 42....Second water discharge lid, 421....Second water discharge port, 5....H handle, 51...first water supply passage, 52...second water supply passage, 6...switching valve, 7...venturi tube, 71...first liquid supply port, 72...second liquid supply port, 73...liquid discharge port, 8...gravity type liquid suction ball, 9...liquid suction tube, 91...fixed part, 92...movable part, 10...mounting sleeve, 20...position control sleeve, 30...first divided member, 301...protrusion, 302...dividing hole, 303...position control part, 40...second divided member.
Claims
1. A liquid storage box (2), a Venturi tube (7) including a first liquid supply port (71) for communicating with an external water supply pipe, a second liquid supply port (72) for communicating with the liquid storage box (2), and a liquid discharge port (73); a first water discharge cavity (3), the first water discharge cavity (3) being provided with an air supply hole (323) and a first water discharge port (321) communicating with the outside, and the first water discharge cavity (3) also being provided with a first water supply port communicating with the liquid discharge port (73); a first divided member (30) provided in the first water discharge cavity (3) and positioned between a first water discharge port (321) and a first water supply port, the first divided member (30) having a plurality of divided holes (302) each having an area larger than the minimum pipe diameter of the Venturi pipe (7); A water discharge device characterized by:
2. The first divided member (30) is configured as a groove-shaped structure, the groove opening of the first divided member (30) is provided facing away from the first water outlet (321), and the plurality of dividing holes (302) are provided at intervals in the side wall of the first divided member (30) along the circumferential direction. The water discharge device according to claim 1 .
3. A protrusion (301) is provided on the groove bottom wall of the first divided member (30), the outer circumferential length of which gradually increases from one end of the first divided member (30) close to the groove opening to the other end. The water discharge device according to claim 2 .
4. The dividing hole (302) is configured as a rectangular hole. The water discharge device according to claim 1 .
5. The first divided member (30) is closer to the first water outlet (321) than the first water supply port. The water discharge device according to any one of claims 1 to 4.
6. The water discharge device further includes a second divided member (40) that is disposed between the first divided member (30) and the first water discharge port (321) and employs a filter net. The water discharge device according to any one of claims 1 to 4.
7. The water discharge device further includes a second water discharge cavity (4) having a second water discharge port (421) communicating with the outside world and a second water supply port for communicating with the external water supply pipe, and a switching valve (6) selectively communicating with the first water supply port (71) or the second water supply port. The water discharge device according to any one of claims 1 to 4.
8. The water discharge device further includes a water discharge body (1) in which the liquid storage box (2), the first water discharge cavity (3), the Venturi tube (7), and the second water discharge cavity (4) are all integrated. The water discharge device according to claim 7 .
9. The Venturi pipe (7) is provided in the water discharge body (1), The water discharge device according to claim 8 .
10. The water discharge device further includes a handle (5) provided on one side of the water discharge body (1). The water discharge device according to claim 8 .
11. A gravity-type liquid suction ball (8) is movably provided in the liquid storage box (2) and communicates with the Venturi tube (7). The water discharge device according to claim 8 .