Foaming showerhead

Abstract

A foaming showerhead, comprising a switching valve assembly (3), a handle (1), and a main body (2). The handle (1) is internally provided with a water intake channel (11), and the main body (2) is internally provided with a first water discharge channel (21), a second water discharge channel (22), and an accommodating cavity (23) for storing body wash. The switching valve assembly (3) can selectively connect the water intake channel (11) to either the first water discharge channel (21) or the second water discharge channel (22). The second water discharge channel (22) comprises a Venturi tube section (221), the Venturi tube section (221) having a negative pressure passage. The accommodating cavity (23) is internally provided with a first through hole (231) and a second through hole (232). The first through hole (231) is in communication with the negative pressure passage, and the second through hole (232) is in communication with outside air or with the second water discharge channel (22). When the water intake channel is in communication with the second water discharge channel, the liquid in the accommodating cavity can be drawn into the Venturi tube section through the first through hole under negative pressure, mixed with a water flow, and flow out, thereby achieving automatic spraying of water containing body wash foam. Operation of the foaming showerhead is simple and convenient.

Description

A foam shower head Technical Field

[0001] This utility model relates to the field of shower head technology, and more specifically, to a foam shower head. Background Technology

[0002] To facilitate showering, many showerheads on the market currently dispense a mixture of shower gel and body wash. For example, patent CN211756082U discloses a showerhead that includes a body, a nozzle, and a handle connected to one side of the nozzle. The nozzle has a first chamber for storing cleaning liquid. The body has a water outlet switch that can close or connect to the main water pipe. The body also has a squeezing part that allows the cleaning liquid in the first chamber to be expelled through a connecting port to the spray nozzle. The nozzle stores cleaning liquid, and pressing it causes the liquid to spray out from the spray nozzle. The water flow can be turned on and off by toggling a switch located on the side of the nozzle housing. However, to continuously spray the body with cleaning liquid, one must hold the squeezing part down with one hand. Furthermore, when holding the showerhead in one hand, one needs to use the other hand to squeeze the liquid, making operation inconvenient and resulting in a poor user experience.

[0003] In view of this, the applicant hereby submits this application after studying the existing technology.

[0004] Utility Model Content

[0005] This invention provides a foam shower head, which aims to improve at least one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a foam shower head, including a switching valve assembly, a connected handle, and a body. The handle has a water inlet channel, and the body has a first water outlet channel, a second water outlet channel, and a cavity for storing shower gel. The switching valve assembly is located at the water inlet end of the body, which enables the water inlet channel to selectively connect with either the first water outlet channel or the second water outlet channel. The second water outlet channel includes a Venturi tube section with a negative pressure channel. The cavity has a first through hole and a second through hole. The first through hole connects to the negative pressure channel, and the second through hole connects to the outside air or to the second water outlet channel at the front end of the negative pressure channel. This allows the liquid in the cavity to be drawn into the Venturi tube section under negative pressure and mixed with the water flow before flowing out.

[0007] As a further optimization, a water outlet panel assembly is joined to the main body. The water outlet panel assembly includes a water distribution plate, a shower outlet panel, and a foam water outlet assembly joined within the shower outlet panel. The water distribution plate is provided with a first water inlet and a second water inlet. The shower outlet panel is connected to the outlet end of the first water outlet channel through the first water inlet of the water distribution plate, and the foam water outlet assembly is connected to the outlet end of the second water outlet channel through the second water inlet of the water distribution plate.

[0008] As a further optimization, the foam water outlet assembly includes a water outlet net, several steel meshes and gaskets. The several steel meshes are arranged sequentially along the axial direction within the water outlet net, and adjacent steel meshes are separated by the gaskets.

[0009] As a further optimization, a silicone water nozzle is attached to the shower head water outlet panel.

[0010] As a further optimization, the switching valve assembly includes a switching valve core and a knob. The knob is rotatably connected to the body. The switching valve core is provided with a first sliding groove and a lever. The body is provided with a second sliding groove that matches the first sliding groove. The lever passes through the first sliding groove and the second sliding groove and is connected to the knob, so that when the knob is rotated, it can drive the lever to slide along the sliding groove to achieve waterway switching.

[0011] As a further optimization, the second through hole is located on the side of the cavity near the handle, the body is provided with an air passage, and the body is provided with a third through hole at the connection with the knob. The two ends of the air passage are respectively connected to the second through hole and the third through hole. When the knob is rotated, it can control the closing of the third through hole.

[0012] As a further optimization, wear-resistant rings are provided at both ends of the inner side of the knob, and the knob is rotatably connected to the body through the wear-resistant rings.

[0013] As a further optimization, the cavity includes a cavity body and a sealing cap, the cavity body having a liquid inlet, and the sealing cap being adapted to engage with the liquid inlet.

[0014] As a further optimization, a sealing ring is provided between the liquid inlet and the sealing cap.

[0015] As a further optimization, the second through hole is provided on the sealing cover, and a sealing plug is movably disposed on the second through hole.

[0016] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0017] The foam shower head of this application features a Venturi tube section constructed in the first water outlet channel. This Venturi tube section creates a negative pressure channel. A first through-hole and a second through-hole are formed within the container holding the shower gel. The first through-hole connects to the negative pressure channel, while the second through-hole connects to the outside atmosphere or to a second channel upstream of the negative pressure channel. This allows the shower gel in the container to be drawn into the Venturi tube section under negative pressure when the inlet and outlet channels are connected, mixing with the water flow before flowing out. Therefore, when shower gel is needed, simply switching to the second water outlet channel will automatically spray it out, eliminating the need for continuous manual squeezing. This simple and convenient operation enhances the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 is an exploded structural diagram of a foam shower head according to the present invention;

[0020] Figure 2 is a cross-sectional view of the first embodiment of the present invention and a schematic diagram of the water outlet of the second water outlet channel.

[0021] Figure 3 is a cross-sectional view of the second embodiment of this utility model;

[0022] Figure 4 is a magnified view of part A in Figure 3;

[0023] Figure 5 is a cross-sectional view of the third embodiment of the present invention and a schematic diagram of the water outlet of the second water outlet channel.

[0024] Figure 6 is a partial enlarged view of the sealing cover of the third embodiment of this utility model;

[0025] Figure 7 is a schematic diagram of the water outlet of the first water outlet channel of a foam shower head according to this utility model.

[0026] The diagram shows the following markings: 1-Handle; 11-Inlet channel; 2-Body; 21-First outlet channel; 22-Second outlet channel; 221-Venturi tube section; 23-Cavity; 231-First through hole; 232-Second through hole; 233-Cavity; 234-Sealing cap; 235-Sealing ring; 24-Air passage; 25-Third through hole; 26-Water channel connecting block; 3-Switching valve; 31-Switching valve core; 32-Knob; 33-First sliding groove; 34-Lever; 35-Second sliding groove; 36-Wear-resistant ring; 41-Water distribution plate; 411-First inlet; 412-Second inlet; 42-Shower head water outlet panel; 421-Silicone water nozzle; 43-Water outlet screen; 44-Steel mesh; 45-Washer. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example

[0029] As shown in Figures 1, 3, 5 to 7, this embodiment of the present invention provides a foam shower head, including a switching valve assembly 3, a handle 1, and a body 2. The handle 1 has a water inlet channel 11. The body 2 is connected to the water outlet end of the handle 1. The body 2 has a first water outlet channel 21, a second water outlet channel 22, and a cavity 23 for storing shower gel. The switching valve assembly 3 is located at the water inlet end of the body 2, which enables the water inlet channel 11 to selectively connect with either the first water outlet channel 21 or the second water outlet channel 22. The second water outlet channel 22 includes a venturi. In the inner pipe section 221, when water flows through the venturi pipe section, a pressure difference is generated. Therefore, the venturi pipe section 24 can form a negative pressure channel. The cavity 23 is provided with a first through hole 231 and a second through hole 232. The first through hole 231 is connected to the negative pressure channel of the venturi pipe section 24, and the second through hole 232 can be connected to the outside air. So that when the water inlet 11 is connected to the second water outlet 22, the bath liquid in the cavity 23 can be drawn into the venturi pipe section 24 through the first through hole 231 under the action of negative pressure, mix with the water flow, and then flow out.

[0030] Referring to Figure 2, in another embodiment, the second through hole 232 is connected to the second water outlet 22 at the front end of the negative pressure channel. When the water inlet 11 is connected to the second water outlet 22, the second through hole 232 allows some water to enter the cavity 23 and mix with the bath liquid. The mixed liquid can be drawn into the Venturi tube section 24 through the first through hole 231 under the action of negative pressure and mixed with the water again.

[0031] In this application, by setting a Venturi tube section 221 on the second water outlet 22, the working principle of the fluid generating a pressure difference in the Venturi tube is utilized, so that the liquid in the cavity 23 can be adsorbed into the Venturi tube section 221, mixed with the water flow and then flowed out, thereby realizing automatic spraying of shower gel. Users only need to switch the water outlet to realize the shower head water or shower gel water, without any other operation, which is convenient to use.

[0032] Referring to Figures 1 and 7, a water outlet panel assembly is attached to the main body 2. The water outlet panel assembly includes a water distribution plate 41, a shower head water outlet panel 42, and a foam water outlet component attached within the shower head water outlet panel 42. The water distribution plate 41 has a first inlet 411 and a second inlet 412. The shower head water outlet panel 42 is connected to the outlet end of the first water outlet channel 21 through the first inlet 411 of the water distribution plate 41. A silicone water nozzle 421 is attached to the shower head water outlet panel 42. The foam water outlet component is connected to the outlet end of the second water outlet channel 22 through the second inlet 412 of the water distribution plate 41. It includes a water outlet mesh 43, several steel meshes 44, and gaskets 45. The steel meshes 44 are arranged sequentially along the axial direction within the water outlet mesh 43, and adjacent steel meshes 44 are separated by gaskets 45. By setting the foam water outlet component, water mixed with shower gel can generate dense foam after passing through multiple steel meshes 44 in sequence, thus achieving foam water outlet.

[0033] Furthermore, the switching valve assembly 3 in this application can be a rotary switching valve. Referring to FIG1, the switching valve assembly 3 includes a switching valve core 31 and a knob 32. The inlet ends of the first water inlet channel 21 and the second water inlet channel 22 are respectively connected to the switching valve core 31 through the water channel connecting block 26. The knob 32 is rotatably connected to the body 2. The switching valve core 31 is provided with a first sliding groove 33 and a lever 34. The body 2 is provided with a second sliding groove 35 adapted to the first sliding groove 33. The lever 34 passes through the first sliding groove 33 and the second sliding groove 35 and is connected to the knob 32, so that when the knob 32 is rotated, it can drive the lever 34 to slide along the sliding groove to realize water channel switching. Wear-resistant rings 36 are provided at both ends of the inner side of the knob 32. The knob 32 is rotatably connected to the body 2 through the wear-resistant rings 36. By providing the wear-resistant rings 36, the wear generated between the body 2 and the knob 32 can be reduced. Preferably, the knob 32 is configured such that rotating it 90 degrees counterclockwise switches to the second outlet channel, and rotating it 90 degrees clockwise switches to the first outlet channel. The switching valve core 31 used in this application is an existing device, therefore its internal structure is not detailed here. It is understood that the switching valve assembly can also be a push-button type switching valve assembly.

[0034] Referring to Figures 3 and 4, in one embodiment, the second through hole 232 is located on the side of the cavity 23 near the handle 1. An air passage 24 is also provided inside the body 2. A third through hole 25 is provided at the connection point between the body 2 and the knob 32. The two ends of the air passage 24 are connected to the second through hole 232 and the third through hole 25, respectively. When the knob 32 is rotated 90 degrees counterclockwise to switch to the second water outlet, the third through hole 25 can communicate with the outside atmosphere. When the knob 32 is rotated 90 degrees clockwise to switch to the first water outlet, the third through hole 25 can be closed. The closure of the third through hole can be controlled by opening a fourth through hole on the side wall of the knob 32, and by the staggering or overlapping of the third and fourth through holes, or by providing a gap between the knob and the body.

[0035] Referring to Figures 1, 5, and 6, the cavity 23 includes a cavity body 233 and a sealing cap 234. The cavity body 233 has a liquid inlet, and the sealing cap 234 is adapted to fit onto the liquid inlet. A sealing ring 235 is provided between the liquid inlet and the sealing cap 234. In another embodiment, a second through hole 232 is provided on the sealing cap 234, and a sealing plug is movably disposed on the second through hole 232. When switching to the second water outlet 22, the sealing plug is removed, allowing the second through hole 232 to communicate with the outside atmosphere, thus automatically dispensing bath liquid. When bath liquid is not needed, the sealing plug can be used to seal the second through hole 232. At this time, because the cavity 23 is in a closed state, the bath liquid cannot be sucked out. Therefore, the second water outlet 22 can have two water dispensing functions.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A foam shower head, comprising a switching valve assembly, a coupled handle, and a body, wherein the handle has a water inlet channel, the body has a first water outlet channel, a second water outlet channel, and a cavity for storing shower gel, and the switching valve assembly is located at the water inlet end of the body, enabling the water inlet channel to selectively communicate with either the first water outlet channel or the second water outlet channel, characterized in that, The second outlet includes a Venturi tube section with a negative pressure channel. The cavity is provided with a first through hole and a second through hole. The first through hole is connected to the negative pressure channel, and the second through hole is connected to the outside air or to the second outlet at the front end of the negative pressure channel. This allows the liquid in the cavity to be drawn into the Venturi tube section under negative pressure and mixed with the water flow before flowing out when the inlet channel is connected to the second outlet channel.

2. A foam shower head according to claim 1, characterized in that... The main body is fitted with a water outlet panel assembly, which includes a water distribution plate, a shower outlet panel, and a foam water outlet assembly fitted within the shower outlet panel. The water distribution plate is provided with a first water inlet and a second water inlet. The shower outlet panel is connected to the outlet end of the first water outlet channel through the first water inlet of the water distribution plate, and the foam water outlet assembly is connected to the outlet end of the second water outlet channel through the second water inlet of the water distribution plate.

3. A foam shower head according to claim 2, characterized in that... The foam water outlet assembly includes a water outlet net, several steel meshes, and gaskets. The several steel meshes are arranged sequentially along the axial direction within the water outlet net, and adjacent steel meshes are separated by the gaskets.

4. A foam shower head according to claim 2, characterized in that... The showerhead's water outlet panel is fitted with a silicone water outlet nozzle.

5. A foam shower head according to claim 1, characterized in that... The switching valve assembly includes a switching valve core and a knob. The knob is rotatably connected to the body. The switching valve core is provided with a first sliding groove and a lever. The body is provided with a second sliding groove that matches the first sliding groove. The lever passes through the first sliding groove and the second sliding groove and is connected to the knob so that when the knob is rotated, it can drive the lever to slide along the sliding groove to achieve waterway switching.

6. A foam shower head according to claim 5, characterized in that... The second through hole is located on the side of the cavity near the handle. The body is provided with an air passage. The body is provided with a third through hole at the connection with the knob. The two ends of the air passage are respectively connected to the second through hole and the third through hole. When the knob is rotated, it can control the closing of the third through hole.

7. A foam shower head according to claim 5, characterized in that... Wear-resistant rings are provided at both ends of the inner side of the knob, and the knob is rotatably connected to the body through the wear-resistant rings.

8. A foam shower head according to claim 1, characterized in that... The cavity includes a cavity body and a sealing cap. The cavity body has a liquid inlet, and the sealing cap is adapted to fit onto the liquid inlet.

9. A foam shower head according to claim 8, characterized in that... A sealing ring is provided between the liquid inlet and the sealing cap.

10. A foam shower head according to claim 8, characterized in that... The second through hole is provided on the sealing cover, and a sealing plug is movably disposed on the second through hole.

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