Water outlet device and shower head using same

Abstract

The utility model discloses a water outlet device and discloses a shower head with the water outlet device, and the water outlet device comprises a water inlet channel and a water outlet channel, the water storage cavity is communicated with the water inlet channel, and a plurality of connecting parts are arranged in the water storage cavity; the water outlet nozzle comprises water inlet ends capable of elastically deforming, the water inlet ends are configured to be inserted into the connecting part in a one-to-one matching mode, and the water inlet ends can be extruded by the water pressure of the water storage cavity to elastically contract to form a water passing gap with the connecting part so as to communicate the water outlet nozzle with the water storage cavity; the water inlet end can be elastically reset and opened to abut against the interior of the connecting part so as to cut off communication between the water outlet nozzle and the water storage cavity. When the water pressure in the water storage cavity drops, the water inlet end of the water outlet nozzle elastically resets along with the drop of the water pressure, the water passing gap is closed, the communication between the water outlet nozzle and the water storage cavity is cut off, and residual water in the water storage cavity cannot flow into the water outlet nozzle to be discharged; the water outlet device is simple in structure, all the water outlet nozzles independently achieve stopping when water is turned off, other components do not need to be installed, the space of the water storage cavity can be reduced, and the overall space occupied by the water outlet device is reduced.

Description

Technical Field

[0001] This utility model relates to a water outlet device, and more particularly to a water outlet device and a shower head using the same. Background Technology

[0002] To achieve an immediate stop when the water is turned off, existing showerheads typically incorporate a pressure plate or other components inside. This design not only complicates the internal structure of the showerhead but also requires more space within the water chamber for the pressure plate to move, resulting in a larger overall size of the showerhead. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes a water outlet device.

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

[0005] This utility model also proposes a shower head with the above-mentioned water outlet device.

[0006] The water outlet device according to a first aspect embodiment of the present invention includes:

[0007] Water inlet channel;

[0008] A water storage chamber, which is connected to the water inlet channel, and the water storage chamber is provided with several connecting parts;

[0009] A plurality of water outlets, each water outlet including an elastically deformable inlet end, the inlet ends being configured to be paired and inserted into the connecting portion, the inlet ends being elastically contracted by the water pressure of the water storage chamber to form a water passage gap with the connecting portion to connect the water outlets to the water storage chamber, the inlet ends being elastically reset and open to abut against the connecting portion to disconnect the communication between the water outlets and the water storage chamber.

[0010] The water outlet device according to the embodiment of this utility model has at least the following beneficial effects: the water pressure in the water storage chamber drops, the water inlet end of the water outlet elastically resets as the water pressure drops, closes the water passage gap, shuts off the connection between the water outlet and the water storage chamber, and the remaining water in the water storage chamber cannot flow into the water outlet for discharge; the structure is simple, each water outlet can independently achieve water shut-off, no other components need to be installed, the space of the water storage chamber can be reduced, and the overall space occupied by the water outlet device can be reduced.

[0011] According to some embodiments of this utility model, it also includes a water sealing plate and a water outlet component, a plurality of water outlets are disposed on the water outlet component, the water outlet component and the water sealing plate define the water storage cavity, and the water sealing plate is provided with a plurality of the connecting portions.

[0012] According to some embodiments of the present invention, the connecting part is cylindrical and extends out from the inner wall of the water storage cavity. The connecting part is hollow inside and open at one end. The water inlet extends in a flared shape along the axial direction of the water outlet in a direction away from the water outlet end of the water outlet.

[0013] According to some embodiments of this utility model, the height of the water storage cavity is not greater than 1.5mm, the water passage gap formed after the elastic contraction of the water inlet end is not greater than 0.5mm, and the thickness of the water inlet end is not less than 0.1mm and not greater than 0.5mm.

[0014] According to some embodiments of the present invention, the water outlet component further includes a plate portion, the water outlet nozzle is integrally formed on the plate portion, and the water storage cavity is defined between the plate portion and the water sealing plate.

[0015] According to some embodiments of this utility model, it also includes a face cover, the water outlet component is made of an elastic material, the plate is clamped and fixed between the sealing plate and the face cover, and the water outlet end of the water outlet is inserted through the face cover.

[0016] According to some embodiments of the present invention, the connecting part is provided with a plurality of pressure columns in the circumferential direction, the pressure columns abut against the plate and press the plate down onto the cover.

[0017] According to some embodiments of this utility model, it also includes a Venturi tube, which is connected between the water inlet channel and the water storage chamber. The negative pressure section of the Venturi tube is connected to a Tesla valve, which is used to unidirectionally deliver outside air to the negative pressure section when water flows through the Venturi tube.

[0018] According to some embodiments of the present invention, the Venturi tube includes an inlet section, a constriction section, a throat section, a negative pressure section, and an outlet section connected in sequence. The end of the inlet section is connected to the inlet channel. The constriction section gradually narrows towards the throat section. The cross-sectional area of ​​the negative pressure section is larger than that of the throat section. The outlet section is connected to the water storage chamber.

[0019] According to some embodiments of the present invention, one side of the Venturi tube is open, and the open side of the Venturi tube covers the outer wall of the water storage cavity. The outer wall of the water storage cavity is provided with a connection port, and the end of the water outlet section is connected to the connection port. The outer wall of the water storage cavity corresponding to the water outlet section is set as an inclined surface, and the inclined surface extends downward towards the connection port.

[0020] A shower head according to a second aspect of the present invention includes a water outlet device.

[0021] The shower head according to the embodiments of the present invention has at least the following beneficial effects: it can stop the water flow immediately when the water is turned off, thus avoiding the problem of dripping.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is an exploded view of the water outlet device.

[0025] Figure 2 This is an internal sectional view of the water outlet device;

[0026] Figure 3 yes Figure 2 A magnified schematic diagram of a local structure;

[0027] Figure 4 yes Figure 3 Another state diagram;

[0028] Figure 5 This is a structural diagram of the water sealing plate;

[0029] Figure 6 This is a schematic diagram of the water sealing plate from another perspective;

[0030] Figure 7 This is a schematic diagram of a Venturi tube and a Tesla valve.

[0031] Reference numerals: Water inlet channel 100; Water storage chamber 200; Connecting part 210; Water passage gap 211; Pressure column 220; Connecting port 230; Water outlet 300; Water inlet end 310; Water outlet end 320; Sealing plate 400; Inclined surface 401; Water outlet component 500; Plate part 510; Cover 600; Venturi tube 700; Water inlet section 710; Narrowing section 720; Throat section 730; Negative pressure section 740; Water outlet section 750; Tesla valve 800. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0033] This utility model relates to a water outlet device, including a water inlet channel 100, a water storage chamber 200 and a plurality of water outlets 300.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, the water outlet device can be applied to shower heads, spray guns, and other products. The water inlet channel 100 can be constructed from a cylindrical connector. An external water supply system, such as a tap water pipe or a water heater, is connected to the water inlet channel 100 via a water pipe. The water inlet channel 100 communicates with the water storage chamber 200. Water is transported to the water storage chamber 200 through the water inlet channel 100. The water storage chamber 200 is provided with several connecting parts 210. Several water outlets 300 are installed in the water storage chamber 200. Each water outlet 300 has an inlet end 310 and an outlet end 320. The inlet end 310 can be elastically deformed; it can be that only the inlet end 310 of the water outlet 300 is made of an elastic material such as rubber or silicone, or the entire water outlet 300 can be made of an elastic material such as rubber or silicone. The inlet end 310 of the spout 300 is installed in the connecting part 210 by a plug-in connection. One spout 300 is paired with one connecting part 210, and the outlet end 320 of the spout 300 extends out of the water storage chamber 200. The inlet end 310 of the spout 300 will undergo elastic deformation due to changes in water pressure within the water storage chamber 200. When water enters the water storage chamber 200, the water pressure inside the water storage chamber 200 increases. The water pressure acts on the outside of the inlet end 310, causing the inlet end 310 to elastically contract under the pressure. Figure 4 As shown, after the inlet end 310 elastically contracts, a certain gap is formed between it and the connecting part 210. This gap is defined as the water passage gap 211. Water in the water storage chamber 200 flows into the outlet 300 through the water passage gap 211, and is sprayed outwards as a water column through the outlet end 320 of the outlet 300. Figure 3 As shown, when water supply to the water storage chamber 200 is stopped, the water pressure in the water storage chamber 200 drops, and the inlet end 310 of the outlet 300 elastically resets as the water pressure decreases. When the inlet end 310 elastically resets, it is open and abuts against the connecting part 210, closing the water passage gap 211 and shutting off the connection between the outlet 300 and the water storage chamber 200. The remaining water in the water storage chamber 200 cannot flow into the outlet 300 for discharge. This achieves the function of stopping water supply immediately upon shutting off. The structure is simple, and each outlet 300 independently achieves the function of stopping water supply immediately upon shutting off.

[0035] In some specific embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 3As shown, it also includes a water sealing plate 400 and a water outlet component 500. A plurality of water outlets 300 are disposed on the water outlet component 500. Each water outlet 300 can be installed on the water outlet component 500 as an independent component, or each water outlet 300 can be integrally formed on the water outlet component 500. The water inlet channel 100 can be columnar or installed on the water sealing plate 400. The water sealing plate 400 and the water outlet component 500 are connected, defining a water storage cavity 200 between them. A plurality of connecting portions 210 are provided on the surface of the water sealing plate 400 facing the water storage cavity 200. The connecting portions 210 can be integrally formed on the water sealing plate 400. The connecting portions 210 can be columnar, extending from the surface of the water sealing plate 400. The connecting portions 210 are located within the water storage cavity 200. The interior of the connecting portions 210 is hollow, and the end of the connecting portions 210 facing the water outlet component 500 is open. The inlet end 310 of the spout 300 is circularly flared, and the flare direction of the inlet end 310 gradually widens away from the outlet end 320 along the axial direction of the spout 300. The inlet end 310 is inserted into the connecting part 210. When the water storage chamber 200 is not filled with water, the edge of the inlet end 310 abuts against the inner wall of the connecting part 210, thereby separating the water storage chamber 200 and the spout 300. When water is filled into the water storage chamber 200 and the pressure is increased, at least a portion of the edge of the inlet end 310 retracts towards the central axis, thereby forming a water passage gap 211 between it and the inner wall of the connecting part 210.

[0036] In this embodiment, the water outlet device is set to spray water at a water pressure of 0.3KG. Correspondingly, the height of the water storage chamber 200 is no greater than 1.5mm, the water passage gap 211 formed after the elastic contraction of the water inlet end 310 is no greater than 0.5mm, and the thickness of the water inlet end 310 is no less than 0.1mm and no greater than 0.5mm. This ensures that the water outlet 300 opens and sprays water at a water pressure of 0.3KG.

[0037] In some specific embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, the water outlet component 500 also includes a plate portion 510. The water outlet nozzle 300 is integrally formed on the plate portion 510, defining a water storage cavity 200 between the plate portion 510 and the sealing plate 400. The plate portion 510 and the sealing plate 400 can be connected by snap-fit, plug-in, or other methods. The water outlet component 500 can be entirely made of elastic materials such as rubber or silicone, meaning the plate portion 510 and the water outlet nozzle 300 are integrally formed from elastic materials. A cover 600 covers the outside of the water outlet component 500, meaning the water outlet component 500 is clamped and fixed between the cover 600 and the sealing plate 400, with the periphery of the plate portion 510 sealed and clamped by the periphery of the cover 600 and the periphery of the sealing component. The water outlet end 320 of the water outlet nozzle 300 passes through the cover 600. Furthermore, several pressure posts 220 are provided circumferentially on the connecting portion 210. Each pressure post 220 can extend from the end face of the connecting part 210, or each pressure post 220 can extend from the circumferential side wall of the connecting part 210. After installation, the water inlet end 310 is inserted into the connecting part 210, and the pressure post 220 abuts against the plate part 510, pressing the plate part 510 down onto the cover 600. The pressure posts 220 on the same connecting part 210 are distributed around the corresponding water outlet 300. The pressure posts 220 locally press the plate part 510 around the adjacent water outlet 300, that is, fix the water outlet 300, so as to prevent the water outlet 300 from swinging or shifting during use, thereby ensuring the connection stability between the water inlet end 310 and the connecting part 210.

[0038] In some embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 7As shown, it also includes a Venturi tube 700. The Venturi tube 700 is connected between the water inlet channel 100 and the water storage chamber 200. A Tesla valve 800 is connected to the negative pressure section 740 of the Venturi tube 700. Water enters from the water inlet channel 100, flows through the Venturi tube 700, and is then transported to the water storage chamber 200. One or more Venturi tubes 700 can be installed between the water inlet channel 100 and the water storage chamber 200. When water flows through the Venturi tube 700, a negative pressure section 740 is formed in the Venturi tube 700 through the Venturi effect. The negative pressure section 740 is connected to the Tesla valve 800. The Tesla valve 800 can be integrally formed on the Venturi tube 700. The negative pressure section 740 forms a negative pressure, and the Tesla valve 800 draws in outside air unidirectionally into the negative pressure section 740. Water and air mix and pressurize in the Venturi tube 700. When the external water supply system has low water pressure, the pressurization effect of the Venturi tube 700 increases the water pressure entering the water storage chamber 200. The application of the Tesla valve 800 improves the efficiency of air intake, prevents fluid backflow in the reverse direction, and avoids water from the Venturi tube 700 from being sprayed out through the Tesla valve 800. It also has a noise reduction effect during air intake. Combined with the water outlet 300's automatic shut-off function, it can prevent water leakage at the air intake of the Venturi tube 700 caused by pressure buildup in the water storage chamber 200 after the water is turned off.

[0039] Specifically, the Venturi tube 700 includes an inlet section 710, a constriction section 720, a throat section 730, a negative pressure section 740, and an outlet section 750 connected in sequence. The end of the inlet section 710 is connected to the inlet channel 100. The cross-sectional area of ​​the inlet section 710 is equal to the maximum cross-sectional area of ​​the constriction section 720, and the constriction section 720 gradually narrows towards the throat section 730. The cross-sectional area of ​​the throat section 730 is equal to the minimum cross-sectional area of ​​the constriction section 720. The cross-sectional area of ​​the negative pressure section 740 is larger than that of the throat section 730, and the outlet section 750 is connected to the water storage chamber 200. Water flows sequentially along the inlet section 710, the constriction section 720, the throat section 730, the negative pressure section 740, and the outlet section 750. The water flow velocity is fastest at the throat section 730. When it flows into the negative pressure section 740, a negative pressure is formed. Based on the atmospheric pressure difference, outside air is drawn into the negative pressure section 740 through the Tesla valve 800.

[0040] Among them, such as Figure 2 , Figure 5 and Figure 7As shown, one side of the Venturi tube 700 is open. A cover 600 of the open side of the Venturi tube 700 fits onto the outer wall of the water storage chamber 200. Alternatively, the open side of the Venturi tube 700 can be fitted onto a sealing plate 400, with a portion of the outer surface of the sealing plate 400 serving as the tube wall of the Venturi tube 700. A connection port 230 is provided on the outer wall of the water storage chamber 200, and the end of the outlet section 750 is connected to the connection port 230. Water flows from the outlet section 750 through the connection port 230 into the water storage chamber 200. The outer wall of the water storage chamber 200 corresponding to the outlet section 750 is configured with a slope 401, i.e., the slope 401 is provided on the outer surface of the sealing plate 400. The sealing plate 400 is placed horizontally, and the slope 401 extends downwards towards the connection port 230. The inclined surface 401 is designed to facilitate the discharge of water in the negative pressure section 740 to the connection port 230, thus preventing water from accumulating in the negative pressure section 740 and affecting the air intake effect.

[0041] In the description of this specification, references to terms such as "some specific embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water outlet device, characterized in that, include: Water inlet channel (100); A water storage chamber (200) is connected to the water inlet channel (100), and the water storage chamber (200) is provided with a plurality of connecting parts (210). A plurality of water outlets (300) are provided, each water outlet (300) including an elastically deformable water inlet end (310). The water inlet end (310) is configured to be paired and inserted into the connecting part (210). The water inlet end (310) can be elastically contracted by the water pressure of the water storage cavity (200) to form a water passage gap (211) with the connecting part (210) to connect the water outlet (300) and the water storage cavity (200). The water inlet end (310) can be elastically reset and open to abut against the connecting part (210) to disconnect the connection between the water outlet (300) and the water storage cavity (200).

2. The water outlet device according to claim 1, characterized in that: It also includes a water sealing plate (400) and a water outlet (500), with a plurality of water outlets (300) disposed on the water outlet (500), the water outlet (500) and the water sealing plate (400) defining the water storage cavity (200), and the water sealing plate (400) being provided with a plurality of the connecting portions (210).

3. The water outlet device according to claim 1 or 2, characterized in that: The connecting part (210) extends out of the inner wall of the water storage cavity (200) in a cylindrical shape. The connecting part (210) is hollow inside and open at one end. The water inlet (310) extends in a flared shape along the axial direction of the water outlet (300) away from the water outlet (320) of the water outlet (300).

4. The water outlet device according to claim 3, characterized in that: The height of the water storage cavity (200) is no greater than 1.5 mm, the water passage gap (211) formed after the elastic contraction of the water inlet end (310) is no greater than 0.5 mm, and the thickness of the water inlet end (310) is no less than 0.1 mm and no greater than 0.5 mm.

5. The water outlet device according to claim 2, characterized in that: The water outlet component (500) also includes a plate portion (510), the water outlet nozzle (300) is integrally formed on the plate portion (510), and the water storage cavity (200) is defined between the plate portion (510) and the water sealing plate (400).

6. The water outlet device according to claim 5, characterized in that: It also includes a face cover (600), the water outlet (500) is made of elastic material, the plate (510) is clamped and fixed between the water sealing plate (400) and the face cover (600), and the water outlet end (320) of the water outlet (300) passes through the face cover (600).

7. The water outlet device according to claim 6, characterized in that: The connecting part (210) is provided with a plurality of pressure posts (220) in the circumferential direction. The pressure posts (220) abut against the plate part (510) and press the plate part (510) down onto the cover (600).

8. The water outlet device according to claim 1, characterized in that: It also includes a Venturi tube (700) connected between the water inlet channel (100) and the water storage chamber (200). The negative pressure section (740) of the Venturi tube (700) is connected to a Tesla valve (800). The Tesla valve (800) is used to unidirectionally transport outside air to the negative pressure section (740) when water flows through the Venturi tube (700).

9. The water outlet device according to claim 8, characterized in that: The Venturi tube (700) includes an inlet section (710), a constriction section (720), a throat section (730), a negative pressure section (740), and an outlet section (750) connected in sequence. The end of the inlet section (710) is connected to the inlet channel (100). The constriction section (720) gradually narrows towards the throat section (730). The cross-sectional area of ​​the negative pressure section (740) is larger than that of the throat section (730). The outlet section (750) is connected to the water storage chamber (200).

10. The water outlet device according to claim 9, characterized in that: One side of the Venturi tube (700) is open, and the side cover (600) of the Venturi tube (700) is fitted onto the outer wall of the water storage cavity (200). The outer wall of the water storage cavity (200) is provided with a connection port (230). The end of the water outlet section (750) is connected to the connection port (230). The outer wall of the water storage cavity (200) corresponding to the water outlet section (750) is set as a slope (401), and the slope (401) extends downward towards the connection port (230).

11. A shower head, characterized in that: Includes the water outlet device as described in any one of claims 1 to 10.

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