Drawing head function switching device

Abstract

The utility model provides a pull head function switching device which comprises a shell. The water inlet connector is connected with a water supply pipeline; the bubbler module is arranged on the outer wall of the shell and used for providing a first water outlet mode; the water distribution body is used for distributing water flow; the water distribution switching assembly comprises an upper water outlet nozzle capable of being hidden and used for providing a second water outlet mode; the button is linked with the upper water outlet nozzle and is used for controlling the upper water outlet nozzle to extend out or hide; and the resetting element is used for automatically resetting the upper water outlet nozzle. The water faucet is simple in structure and convenient to operate, an operation component and a water outlet component are combined into a whole through the innovative button-water outlet nozzle linkage design, and the one-button dual-mode switching function is achieved.

Description

Technical Field

[0001] This utility model relates to a pull-out head function switching device. Background Technology

[0002] Currently, pull-out faucets on the market typically feature two water flow modes: regular water flow and shower water flow. Switching between these modes usually employs a lever, knob, or push-pull mechanism. However, these switching methods present several problems: Inconvenient operation: Traditional lever or knob switching requires manual operation, which is not convenient, especially when hands are wet or the pull-out head is being held, as it can easily slip and negatively impact the user experience; Complex structure: Some switching mechanisms use additional push-pull rods or diverter valves, increasing the number of internal components, which not only increases manufacturing costs but also makes them prone to wear and tear or leaks over time; Unsightly appearance: External switching components (such as levers and knobs) can detract from the overall aesthetics of the pull-out head, affecting the integrated design of the product.

[0003] Furthermore, existing pull-out tap switching devices typically separate the operating components (such as buttons) from the water outlet components (such as spouts), resulting in structural redundancy, large space occupation, and hindering miniaturization and lightweight design. Therefore, there is an urgent need for a pull-out tap function switching device that is simple in structure, easy to operate, and can achieve one-button switching of water outlet modes to improve user experience and optimize product design. Utility Model Content

[0004] This invention provides a pull-out head function switching device, which can effectively solve the above problems.

[0005] This utility model is implemented as follows:

[0006] A pull-out head function switching device, including

[0007] shell;

[0008] Water inlet connector, used to connect to water supply pipes;

[0009] An aerator module is disposed on the outer wall of the housing to provide a first water output mode;

[0010] Water distribution bodies are used to distribute water flow.

[0011] The water diversion switching component includes:

[0012] A retractable top spout provides a second water flow mode;

[0013] A button, linked to the upper water outlet, is used to control the extension or retraction of the upper water outlet;

[0014] A reset element is used to automatically reset the upper water outlet.

[0015] Normally, the upper water outlet is located inside the outer casing, and water flows out from the aerator module; when the button is pressed, the upper water outlet extends, and the water flow is switched to the upper water outlet.

[0016] The beneficial effects of this utility model are:

[0017] (1) This utility model integrates the operating component and the water outlet component into one through an innovative button-outlet linkage design, realizing a "one-button" dual-mode switching function. When the button is pressed, the upper water outlet retracts into the outer shell to switch to the aerator water outlet mode. When the button is released, the upper water outlet automatically extends to restore the shower water outlet mode. This integrated structure not only simplifies the operation process (mode switching can be completed with one hand) and optimizes the product appearance (no exposed paddles or other redundant components), but also ensures the reliability and sealing of the switching action through the synergy of mechanical transmission and water pressure system (tested to withstand 1.6MPa water pressure). At the same time, the compact layout reduces the overall volume by 40% compared with the traditional structure and increases the assembly efficiency by 50%. It can provide an intuitive, stable and ergonomic water outlet control experience in multiple scenarios such as kitchens and bathrooms. 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 This is the front view of this utility model.

[0020] Figure 2 This is the bottom view of this utility model.

[0021] Figure 3 This is an exploded view of this utility model.

[0022] Figure 4 This is a schematic diagram of the water distribution switching component of this utility model.

[0023] Figure 5 This is a cross-sectional view of the present invention AA.

[0024] Figure 6 This is a utility model Figure 5 A reverse diagram of AA in the middle.

[0025] Explanation of icon numbers:

[0026] 10. Outer casing;

[0027] 20. Water inlet connector; 200. First extension plate; 202. First snap hole;

[0028] 30. Aerator module;

[0029] 40. Connector; 400. First latch; 402. Second latch;

[0030] 50. Water divider; 500. Second extension plate; 502. Second snap hole;

[0031] 60. Water distribution switching assembly; 600. Water distribution shaft; 604. Upper water outlet; 6040. Connecting end; 6042. Lower connecting plate; 6044. First screw; 6046. Upper connecting bracket; 606. Spring; 608. Button; 610. Push rod; 6100. Hanging interface; 612. Bracket; 6120. Second screw. Detailed Implementation

[0032] 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 some, not all, of the 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. 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 to represent selected embodiments of this utility model.

[0033] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] Reference Figure 1-6 As shown, a pull-out head function switching device includes...

[0035] The housing 10; the water inlet connector 20 for connecting to the water supply pipeline; the aerator module 30, which is disposed on the outer wall of the housing 10 for providing the first water outlet mode; and the water distributor 50 for distributing the water flow.

[0036] It also includes a connector 40, which is disposed between the water inlet connector 20 and the water distribution body 50 for water circuit connection; the connector 40 is provided with a guide groove (not shown in the figure) to restrict the movement path of the water distribution shaft 600; the mating surface of the connector 40 is provided with an axial sealing ring and a radial sealing ring to form a multi-seal structure.

[0037] The water distribution switching component 60 includes: a retractable upper water outlet 604 for providing a second water outlet mode; a button 608 linked to the upper water outlet 604 for controlling the extension or retraction of the upper water outlet 604; and a reset element for automatically resetting the upper water outlet 604. Normally, the upper water outlet 604 is located inside the housing 10, and water flows from the aerator module 30. When the button 608 is pressed, the upper water outlet 604 extends, and the water flow switches to the upper water outlet 604.

[0038] Furthermore, the dual identity definition of button 608,

[0039] Ease of use: Button 608 is the component directly operated by the user, and it is responsible for triggering the water flow mode switching. By pressing, the user can actively control the extension or retraction of the upper water outlet 604, thereby switching the water flow path (shower-style water flow / normal water flow) (the surface of button 608 can be integrated with anti-slip texture or pressure feedback structure to improve the clarity of the operation feel and avoid accidental touches);

[0040] Water outlet characteristics: Button 608 and upper water outlet 604 are integrated or fixed with screws. They are physically inseparable. When pressed, button 608 drives upper water outlet 604 to extend. When upper water outlet 604 extends, button 608 is exposed on the surface of housing 10, becoming the direct outlet of water flow. Under normal conditions, upper water outlet 604 is hidden inside housing 10, and water flow is switched to aerator module 30 (the connection between button 608 and upper water outlet 604 adopts a sealed nesting process (such as silicone sealing ring) to ensure no risk of water leakage during extension and retraction, while maintaining the integrated aesthetic appearance).

[0041] Extended position (direct water output)

[0042] Extended working condition: Press button 608, the upper water outlet 604 is kept extended through the linkage of push rod 610 and water distribution shaft 600. At this time, button 608 and upper water outlet 604 are exposed on the surface of housing 10 and directly exposed as water outlet.

[0043] Water flow path: The water flow is guided through the water distribution chamber to the composite structure of button 608 / upper water outlet 604 to form a direct water flow, which is suitable for large-area rinsing or washing scenarios.

[0044] Default state (aerator module 30 water output)

[0045] Button 608 and upper water outlet 604 are hidden inside housing 10. Push rod 610 pushes water distribution shaft 600 to slide, closing the channel of upper water outlet 604 and opening the passage from water distribution chamber to aerator module 30.

[0046] Hidden design: Button 608 retracts into the housing 10 in sync with the upper water outlet 604, leaving only the water inlet connector 20 and the aerator module 30 with water output function.

[0047] Reset mechanism: After pressing button 608, spring 606 drives water distribution shaft 600 to slide in the opposite direction, and upper water outlet 604 and button 608 extend outward again, restoring direct water flow.

[0048] By designing button 608 as a dual carrier of operation and water dispensing, this solution achieves a breakthrough in both functional integration and user experience. This innovation not only simplifies the product structure but also redefines the operating paradigm of faucets with intuitive interaction logic and reliable mechanical performance.

[0049] The water distribution switching assembly 60 also includes: a water distribution shaft 600, which is slidably disposed within the water distribution body 50; a push rod 610, which connects the water distribution shaft 600 and the upper water outlet 604, and is used to push the water distribution shaft 600 to move when the button 608 is pressed, so as to change the water flow path; the button 608 is integrally formed or fixedly connected to the upper water outlet 604, and directly drives the upper water outlet 604 to move when pressed; the reset element is a spring 606, which is disposed between the water distribution shaft 600 and the water distribution body 50, and is used to automatically reset the upper water outlet 604.

[0050] The water distribution body 50 has a water distribution chamber. The movement of the water distribution shaft 600 can switch the connection state of the water distribution chamber, so that the water flow is directed to the aerator module 30 or the upper water outlet 604. The sealing surface of the water distribution shaft 600 is arranged in a stepped manner, and the height difference between each step is 0.3-0.5mm, so that the axial force generated under water pressure and the restoring force of the spring 606 are dynamically balanced.

[0051] A bracket 612 is also provided between the water distribution body 50 and the upper water outlet 604, which is used to fix the bracket 612 and the second screw 6120 of the water distribution body 50. One end of the push rod 610 forms a hanging interface 6100 that connects to the upper connecting frame 6046.

[0052] Specifically, the functions of the water distribution shaft 600 and the push rod 610 are as follows:

[0053] Structural relationships:

[0054] The water distribution shaft 600 is slidably disposed within the water distribution body 50, which provides a stable sliding track for the water distribution shaft 600, ensuring that the water distribution shaft can move in a predetermined direction. A push rod 610 connects the water distribution shaft 600 and the upper water outlet 604. One end of the push rod 610 is connected to the water distribution shaft 600, and the other end is connected to the upper water outlet 604. This connection method allows the force generated when the button 608 is pressed to be effectively transmitted to the water distribution shaft 600. When the button 608 is pressed, the force is transmitted to the push rod 610 through the upper water outlet 604 (or directly through the push rod if integrally formed or fixedly connected), and the push rod 610 then transmits the force to the water distribution shaft 600, thereby pushing the water distribution shaft 600 to move within the water distribution body 50. Therefore, the movement of the water distribution shaft 600 is key to changing the water flow path. The water distribution body 50 has a water distribution cavity, and the movement of the water distribution shaft 600 can switch the connection state of the water distribution cavity. When the water distribution shaft 600 moves to a certain position, the water flow will be directed to the aerator module 30; when it moves to another position, the water flow will be directed to the upper water outlet 604. This precise water flow path control is the basis for realizing different water outlet modes.

[0055] The function of the support

[0056] Structural relationships:

[0057] A bracket 612 is installed between the water distribution body 50 and the upper outlet 604. The bracket 612 is fixed to the water distribution body 50 by a second screw 6120. This fixing method ensures the positional stability of the bracket 612. One end of the push rod 610 has a hanging interface 6100, which connects to the upper connecting frame 6046 (which is part of the upper outlet 604). This connection method makes the connection between the push rod 610 and the upper outlet 604 more stable and facilitates the transmission of force. Thus, the presence of the bracket 612 enhances the structural stability of the entire water distribution switching assembly. It can withstand the forces from the push rod 610 and the upper outlet 604, preventing loosening or displacement of components during water flow impact and frequent operation. At the same time, the bracket 612 also provides a reference for the installation and positioning of other components (such as the push rod 610), which helps to improve the assembly accuracy and reliability of the entire assembly.

[0058] Overall effect: Users can easily switch between two water outlet modes (shower-style or other special water outlet modes from the upper spout 604 and the regular water outlet mode from the aerator module 30) simply by pressing or releasing button 608. This intuitive operation is ergonomic and requires no complicated steps or skills. The precise switching of the water distribution chamber's connection state via the water distribution shaft 600 ensures that water flow is accurately directed to the desired water outlet. Both the aerator module 30 and the upper spout 604 receive a stable water supply, preventing water flow disturbances or leaks during mode switching. The presence of a reset element (spring 606) ensures that the upper spout 604 resets quickly and accurately after button release, while reducing wear and tear on components that may result from frequent operation. The bracket 612 and the robust connections between components (such as screw fixing and hanging interface connections) improve the stability of the entire water distribution switching assembly under different usage environments, extending the product's lifespan. In summary, this compact water switching component design effectively utilizes the internal space of the faucet, and the rational layout between the various components enables the entire component to achieve complex functions within a limited space, which is conducive to the miniaturization and integration of the overall faucet structure.

[0059] It should be noted that the water pressure fixing mechanism of this utility model is fundamentally different from the traditional structure:

[0060] Traditional method: relies on static friction force generated by a single water pressure for locking;

[0061] This solution utilizes the stepped sealing surface design of the water distribution shaft 600 to generate an axial force F = ΔP × A (A is the effective pressure-bearing area) under a water pressure of 3-5 bar. This force forms a dynamic balance with the preload of the spring 606, achieving precise position retention.

[0062]

[0063]

[0064] When the water pressure is less than 1.5 bar, the system relies on the preload of the spring (606) (≥4 N) to maintain the position of the water distribution shaft; when the water pressure is greater than 1.5 bar, the hydraulic force and the spring force are proportional: F_total=K×P+4N (K is the structural coefficient).

[0065] The water inlet connector 20, connector 40, and water distribution body 50 are all provided with a first connector, a second connector, and a third connector that are interlocked with each other. The first connector includes a first extension plate 200 with a first snap hole 202 formed on the first extension plate 200. The second connector includes a first snap 400 and a second snap 402. The third connector includes a second extension plate 500 with a second snap hole 502 formed on the second extension plate 500. During assembly, the first snap hole 202 is engaged with the first snap 400, and the second snap hole 502 is engaged with the second snap 402, thereby quickly assembling the water inlet connector 20, connector 40, and water distribution body 50.

[0066] Working principle: Under normal conditions, the upper water outlet 604 and button 608 remain retracted under the action of the return spring 606, hidden inside the outer casing 10. At this time, the water distribution shaft 600 is tightly fitted with the water outlet channel of the aerator module 30 under the preload of the spring. The water flows through the water distribution chamber of the water distribution body 50 and is guided to the aerator module 30, forming a dispersed water outlet through its porous structure. When the user presses the button 608, the upper water outlet 604 extends out of the outer casing 10 synchronously with the button. At the same time, the push rod 610 pushes the water distribution shaft 600 to move axially along the guide groove of the connector 40, compressing the return spring 606 and breaking the sealed connection between the water distribution shaft and the aerator module 30, thus connecting with the upper water outlet. The water outlet channel of the water nozzle 604 is opened, allowing the water flow to switch to a columnar outlet that sprays vertically upwards. After the button is released, the elastic restoring force of the return spring 606 drives the water distribution shaft 600 to precisely reset. The upper water outlet 604 and the button 608 retract synchronously into the housing 10. The water distribution shaft reseals the aerator module 30 channel, and the water flow resumes to a multi-hole dispersed flow. The entire switching process is ensured to have zero leakage by the axial / radial double sealing ring of the connector 40. The rigid fit between the push rod 610 and the guide groove ensures the motion accuracy. The damping characteristics of the return spring 606 take into account both the operating feel and the sealing stability, realizing the seamless switching of the extension and retraction of the hidden water outlet and the water flow mode under single-finger pressing operation.

[0067] 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 pull-out head function switching device, characterized in that, include Outer shell (10); Water inlet connector (20), used to connect to water supply pipe; Aerator module (30) is disposed on the outer wall of the housing (10) for providing a first water output mode; Water distribution body (50), used to distribute water flow; Water diversion switching assembly (60), comprising: A retractable top spout (604) is provided to offer a second water outlet mode; Button (608), linked to the upper water outlet (604), is used to control the extension or retraction of the upper water outlet (604); A reset element is used to automatically reset the upper water outlet (604); Under normal conditions, the upper water outlet (604) is located inside the outer shell (10), and the water flows out from the aerator module (30); when the button (608) is pressed, the upper water outlet (604) extends out, and the water flow is switched to the upper water outlet (604).

2. The pull-out head function switching device according to claim 1, characterized in that, The water diversion switching component (60) also includes: The water distribution shaft (600) is slidably disposed within the water distribution body (50); A push rod (610) connects the water distribution shaft (600) and the upper water outlet (604) and is used to push the water distribution shaft (600) to move when the button (608) is pressed, so as to change the water flow path.

3. A pull-out head function switching device according to claim 1 or 2, characterized in that, The button (608) is integrally formed or fixedly connected to the upper water outlet (604), and when pressed, it directly drives the upper water outlet (604) to move.

4. The pull-out head function switching device according to claim 2, characterized in that, The reset element is a spring (606), which is located between the water distribution shaft (600) and the water distribution body (50) and is used to automatically reset the upper water outlet (604).

5. The pull-out head function switching device according to claim 1, characterized in that, The water distribution body (50) is provided with a water distribution cavity. The movement of the water distribution shaft (600) can switch the connection state of the water distribution cavity, so that the water flow is directed to the aerator module (30) or the upper water outlet (604).

6. The pull-out head function switching device according to claim 1, characterized in that, It also includes a connector (40) disposed between the water inlet connector (20) and the water distribution body (50) for water passage connection.

7. A pull-out head function switching device according to claim 6, characterized in that, The connector (40) is provided with a guide groove to restrict the movement path of the water-dividing shaft (600).

8. A pull-out head function switching device according to claim 6, characterized in that, The connector (40) has an axial sealing ring and a radial sealing ring on its mating surface, forming a multi-seal structure.

9. A pull-out head function switching device according to claim 1, characterized in that, A bracket (612) is also provided between the water distribution body (50) and the upper water outlet (604) for fixing the bracket (612) and the second screw (6120) of the water distribution body (50). One end of the push rod (610) forms a hanging interface (6100) that connects to the upper connecting frame (6046).

10. A pull-out head function switching device according to claim 1, characterized in that, The water inlet connector (20), the connector (40), and the water distribution body (50) are all provided with a first connecting member, a second connecting member, and a third connecting member that are interlocked with each other; wherein, The first connector includes a first extension plate (200) and a first snap hole (202) formed on the first extension plate (200); The second connector includes a first latch (400) and a second latch (402); The third connector includes a second extension plate (500) and a second snap hole (502) formed on the second extension plate (500); During assembly, the first buckle hole (202) is fastened to the first buckle (400), and the second buckle hole (502) is fastened to the second buckle (402), thereby quickly assembling the water inlet connector (20), the connector (40), and the water distribution body (50).

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