A wall-mounted faucet with automatic reset

Abstract

The utility model discloses a wall -hanging faucet of automatic reset, its technical scheme main points include the faucet body, the faucet body includes the fixed part of hollow setting, movable casing, movable casing can be relative fixed part axial movement, movable casing and fixed part cooperation forms the faucet fluid passage, the valve core subassembly according to movable casing axial movement position control faucet fluid passage's opening or close, movable casing can switch to initial position according to the fluid state in fluid passage. The utility model discloses through the setting of movable casing, will movable casing's axial movement position with the working mode of faucet direct association to set up automatic reset function, ensure that each time opening faucet is all in the default lower water -out mode, effectively avoided the problem of the mistake of high -position flower shower because of insufficient light or state identification difficulty.

Description

Technical Field

[0001] This utility model relates to the field of faucet technology, and more specifically to an automatic reset wall-mounted faucet. Background Technology

[0002] Currently, wall-mounted faucets are dual-function water supply devices installed on bathroom walls. They typically feature a spout extending from the wall, with a handheld or fixed spout at the end, and a raised pull-out or fixed shower head. They offer two modes: regular faucet flow and raised shower flow. In regular faucet mode, water flows directly from the lower spout, suitable for low-lying areas. In raised shower mode, the water flows through the higher nozzle in a spray pattern, convenient for rinsing the body or cleaning the bathroom space. The two modes are switched using a physical mechanism such as a lever, knob, or button, allowing users to easily select the mode according to their needs.

[0003] However, the existing technologies mentioned above still have some drawbacks. The water outlet mode switching device of the existing wall-mounted faucets is usually located at the front of the faucet or in the vicinity, requiring the user to manually adjust the water outlet mode. In situations with insufficient light or water surface reflection, it is difficult to identify the faucet status. When the lower water outlet mode needs to be turned on, the faucet may still be in the upper water outlet mode. At this time, when the faucet is turned on, the water flow will unexpectedly spray out from the shower head above, which can easily splash clothes and may startle or cause the user to slip due to the sudden water flow or slippery ground, resulting in an unpleasant experience. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides an automatic reset wall-mounted faucet.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a faucet body, which comprises a hollow fixed part and a movable shell. The movable shell is axially movable relative to the fixed part. The movable shell and the fixed part cooperate to form a faucet fluid channel. The faucet fluid channel includes a water outlet chamber disposed in the movable shell, a water inlet chamber disposed in the fixed part, and a fluid cavity jointly formed by the movable shell and the fixed part. The fluid cavity is provided with a valve core assembly for opening and closing the fluid channel. The valve core assembly controls the opening or closing of the faucet fluid channel according to the axial movement position of the movable shell. The movable shell can switch to an initial position according to the fluid state within the fluid channel.

[0006] The present invention is further configured such that: the valve core assembly has an active state and a passive state; when the movable housing is close to the fixed part, the valve core assembly is in a passive state, and the valve core assembly will not move when water flows through the fluid channel, allowing the water to flow smoothly; when the movable housing is far away from the fixed part, the valve core assembly is in an active state, and the fluid pressure generated when water flows through the fluid channel will drive the valve core assembly to close the fluid channel.

[0007] The present invention is further configured such that the cross-sectional area of ​​the fluid cavity connected to the outlet cavity is smaller than the cross-sectional area of ​​the inlet cavity.

[0008] The present invention is further configured such that: the valve core assembly includes a flow divider, a valve block, and an elastic body; the valve block is close to the outlet chamber; the elastic body is used to push the valve block away from the outlet chamber; the flow divider is close to the inlet chamber; and all fluid entering the fluid chamber will pass through the flow divider.

[0009] The present invention is further configured such that: the diversion part is fixedly connected to the movable shell; the diversion part has a through hole in the middle and several external protrusions on the outer side; the movable shell has a slot for clamping the external protrusions; the gap formed between the external protrusions is normally blocked by the inner wall of the fixed part; when the movable shell extends, it becomes a channel for water to flow through; the diversion part has a through hole in the middle, and the cross-sectional area of ​​the through hole is smaller than the cross-sectional area of ​​the flow channel at the inlet of the outlet chamber.

[0010] The present invention is further configured such that: the diversion section extends near the water inlet cavity with a diversion protrusion, which guides the fluid near the center to the surrounding areas.

[0011] The present invention is further configured such that: the movable housing is provided with an inner protrusion near the fixed part; the fixed part is provided with a step adapted to the inner protrusion; an elastic part for resetting is provided between the step and the inner protrusion; an inner wall opening is provided on the side wall of the fixed part; a buoyancy ball is installed at the inner wall opening; the movable housing is provided with an inner wall opening adapted to the buoyancy ball; when the movable housing is in the pulled-out state, the buoyancy ball floats up under the buoyancy of the fluid inside the fixed part and cooperates with the inner wall opening to maintain the extended state.

[0012] In summary, this utility model has the following beneficial effects: by setting up the movable housing, the axial movement position of the movable housing is directly associated with the working mode of the faucet, and an automatic reset function is set up to ensure that the faucet is in the default lower water outlet mode every time it is turned on, effectively avoiding the problem of accidentally turning on the high-position shower head due to insufficient light or difficulty in recognizing the status. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This is a schematic diagram of the flow divider in this embodiment; Figure 3 This is a schematic diagram of the startup state in this embodiment; Reference numerals: 1. Fixed part; 11. Step; 12. Side wall opening; 13. Buoyancy ball; 2. Movable shell; 21. Groove; 22. Inner protrusion; 23. Inner wall opening; 3. Faucet fluid channel; 31. Water outlet chamber; 32. Water inlet chamber; 33. Fluid chamber; 4. Valve core assembly; 41. Diverter part; 411. Through hole; 412. Outer protrusion; 413. Diverter protrusion; 42. Valve block; 43. Elastomer; 5. Elastic part. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings.

[0015] This embodiment discloses an automatically resetting wall-mounted faucet, such as... Figures 1 to 2 As shown, the faucet includes a faucet body, which comprises a hollow fixed part 1 and a movable shell 2. The movable shell 2 is axially movable relative to the fixed part 1. The movable shell 2 and the fixed part 1 cooperate to form a faucet fluid channel 3. The faucet fluid channel 3 includes a water outlet chamber 31 disposed in the movable shell 2, a water inlet chamber 32 disposed in the fixed part 1, and a fluid cavity 33 jointly formed by the movable shell 2 and the fixed part 1. The fluid cavity 33 is provided with a valve core assembly 4 for opening and closing the fluid channel. The valve core assembly 4 controls the opening or closing of the faucet fluid channel 3 according to the axial movement position of the movable shell 2. The movable shell 2 can switch to an initial position according to the fluid state in the fluid channel 3. The initial position corresponds to the lower water outlet mode. The water outlet mode switching is no longer a small action such as touching or pressing, but an action of pulling out the entire movable shell 2 when the faucet is turned on in the lower water outlet mode. After use, the movable shell 2 will return to the initial position under the action of the reset resistance, so that the present invention is in the lower water outlet mode every time it is turned on.

[0016] Further improvements include a valve core assembly 4 having an active state and a passive state. When the movable housing 2 is close to the fixed part 1, the valve core assembly 4 is in a passive state, and the valve core assembly 4 will not move when water flows through the fluid channel, allowing the water to flow smoothly. When the movable housing 2 is away from the fixed part 1, the valve core assembly 4 is in an active state, and the fluid pressure generated when water flows through the fluid channel will drive the valve core assembly 4 to close the fluid channel.

[0017] To further improve the design, the cross-sectional area of ​​the flow path connecting the fluid chamber 33 and the outlet chamber 31 is smaller than that of the inlet chamber 32. At a constant flow rate, a smaller flow path cross-sectional area leads to an increase in flow velocity and a decrease in fluid pressure. This smaller cross-sectional area between the fluid chamber 33 and the outlet chamber 31 compared to the inlet chamber 32 results in a significant velocity difference at the connection point between the fluid chamber 33 and the outlet chamber 31 and the inlet chamber 32. This creates a significant pressure difference pointing towards the outlet chamber 31. When sufficient fluid flows through, this pressure difference is sufficient to drive the valve core assembly 4 to close the fluid passage.

[0018] Further improvements include a flow divider 41, a valve block 42, and an elastic body 43. The valve block 42 is located near the outlet chamber 31 and is used to close the flow channel under pressure. The elastic body 43 is used to push the valve block 42 away from the outlet chamber 31. The flow divider 41 is located near the inlet chamber 32, ensuring that all fluid entering the fluid chamber 33 passes through the flow divider 41, thus guiding the fluid entering the fluid chamber 33. This makes the fluid flow controllable, allowing the flow divider 41 to be positioned as needed to obtain a specific water flow. This valve core assembly 4 transforms the switching of the faucet's operating mode from traditional direct valve operation to indirect control of the fluid dynamic state by changing the position of the movable housing 2, providing a structural basis for proactively preventing misoperation.

[0019] like Figure 3 As shown, the diversion section 41 is fixedly connected to the movable housing 2. The diversion section 41 has a through hole 411 in the middle and several external protrusions 412 on the outside. The movable housing 2 has a slot 21 for clamping the external protrusions 412. The gaps formed between the external protrusions 412 are normally blocked by the inner wall of the fixed part 1. When the movable housing 2 is extended, it becomes a channel for water to flow through. The diversion section 41 has a through hole 411 in the middle. The cross-section of the through hole 411 is smaller than the cross-sectional area of ​​the water inlet of the outlet cavity 31. In the stopped state, the gap is blocked, and the water can only flow slowly through the central small through hole 411. The water flows through the valve block 42, but due to the low flow velocity, the front end of the valve block 42 cannot form a sufficiently low-pressure area. Therefore, the valve block 42 will not be driven to close, and the fluid will smoothly enter the outlet chamber 31 and flow out. In the started state, the gap is open, and the water mainly flows through these gaps at high speed. A large amount of water rushes into the fluid chamber 33 and into the inlet of the outlet chamber 31. When the high-speed water flows through the narrowed flow channel, the flow velocity increases and its static pressure decreases, thereby forming a pressure difference between the front and rear ends of the valve block 42 pointing towards the outlet chamber 31. This pressure difference will drive the valve block 42 to overcome the elastic force of the elastic body 43 and close it. After closing, the pressure inside the fluid chamber 33 will act on the back of the valve block 42 to maintain the closed state of the valve block 42.

[0020] To further improve the design, the diversion section 41 extends near the inlet chamber 32 with a diversion protrusion 413, which guides the fluid near the center outwards. The diversion protrusion 413 directs the water flow in the center towards the sidewalls, allowing it to enter the fluid channel formed by the gap more smoothly and evenly, thus optimizing the water flow distribution. This ensures that in the startup state, a sufficient and uniform high-speed water flow passes through the gap, preventing the valve block 42 from failing due to water flow not closing.

[0021] Further improvements include an inner protrusion 22 near the fixed part 1 on the movable shell 2, a step 11 corresponding to the inner protrusion 22 on the fixed part 1, an elastic part 5 for repositioning between the step 11 and the inner protrusion 22, an inner wall opening 23 on the side wall of the fixed part 1, and a buoyancy ball 13 installed at the inner wall opening 23. The movable shell 2 also has an inner wall opening 23 that matches the buoyancy ball 13. When the movable shell 2 is in the extended state, the buoyancy ball 13 floats upward under the buoyancy of the fluid inside the fixed part 1 and cooperates with the inner wall opening 23 to maintain its extended state. When water flows through and fills the fixed part 1, the water enters the chamber containing the buoyancy ball 13 through the side wall opening 12. The buoyancy ball 13 will float under the buoyancy of the flowing water. When switching the use state, when the movable shell 2 is pulled out, the fixed part 1 will be filled with fluid, and the buoyancy ball 13 will float. When the inner wall opening 23 on the movable shell 2 moves to the position of the buoyancy ball 13, the ball will be stuck in, mechanically preventing the movable shell 2 from retracting under the action of the spring. When the fluid in the fixed part 1 decreases, the fluid level drops, and the buoyancy ball 13 will detach from the inner wall opening 23 under the action of gravity, realizing automatic reset.

[0022] Working principle of this utility model In the normal state, the movable housing 2 is retracted under the action of the elastic part 5, tightly pressed against the fixed part 1. At this time, the valve core assembly 4 is in a stopped state. Water can only slowly pass through the small through hole 411 in the center of the diverter 41. At this time, the flow velocity through the front end of the valve block 42 is low, and the pressure difference before and after the valve block 42 is extremely small, which cannot overcome the pre-tightening force of the elastic body 43, so the valve block 42 remains open. The water flows smoothly out of the faucet spout below through the outlet chamber 31.

[0023] When switching shower modes, the movable housing 2 is actively pulled out. The movement of the movable housing 2 causes the diverter 41 to move outward, opening the gap between the outer protrusions 412 on its outer side, becoming the main flow channel. Most of the water flows at high speed through these gaps into the fluid chamber 33. The high-speed water flow forms a low-pressure zone at the front end of the valve block 42, generating a strong pressure difference before and after the valve block 42. This pressure difference drives the valve block 42 to overcome the elasticity of the elastic body 43, driving the valve block 42 to move towards the inlet of the water outlet chamber 31 and seal it, thus closing the channel of the lower faucet spout. At this time, the water flow is redirected to the high-position shower head for output. Simultaneously, when the movable housing 2 is pulled out and the water flow is turned on, the fixed part 1 quickly fills with water. The buoyancy ball 13 installed in the side wall opening 12 floats up under the action of buoyancy. When the inner wall opening 23 on the movable housing 2 moves to the corresponding position, the buoyancy ball 13 is locked in it, forming a mechanical lock, preventing the movable housing 2 from retracting under the action of the spring, thereby stably maintaining the shower water output mode. A reliable switch from normal state to showerhead usage state is completed through an active pull-out action.

[0024] When the water flow is turned off, the water inlet stops, the fluid pressure drops, the valve block 42 resets under the action of the elastic body 43, the faucet fluid channel 3 reopens, and the residual water in the channel flows out through the outlet chamber 31. As the water level in the fixed part 1 drops, the buoyancy ball 13 disengages from the inner wall opening 23, and the movable housing 2 automatically retracts under the action of the elastic part 5, returning to the normal mode. The faucet automatically and reliably resets to the initial faucet water outlet mode, ready for the next use.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wall-mounted faucet with automatic reset function, comprising a faucet body, characterized in that: The faucet body includes a hollow fixed part (1) and a movable shell (2). The movable shell (2) can move axially relative to the fixed part (1). The movable shell (2) and the fixed part (1) cooperate to form a faucet fluid channel (3). The faucet fluid channel (3) includes a water outlet chamber (31) disposed in the movable shell (2), a water inlet chamber (32) disposed in the fixed part (1), and a fluid cavity (33) composed of the movable shell (2) and the fixed part (1). The fluid cavity (33) is provided with a valve core assembly (4) for opening and closing the fluid channel. The valve core assembly (4) controls the opening or closing of the faucet fluid channel (3) according to the axial movement position of the movable shell (2). The movable shell (2) can switch to the initial position according to the fluid state in the fluid channel (3).

2. The wall-mounted faucet with automatic reset according to claim 1, characterized in that: The valve core assembly (4) has an active state and a passive state. When the movable housing (2) is close to the fixed part (1), the valve core assembly (4) is in a passive state. When water flows through the fluid channel, the valve core assembly (4) will not move and the water flows smoothly. When the movable housing (2) is far away from the fixed part (1), the valve core assembly (4) is in an active state. When water flows through the fluid channel, the generated fluid pressure will drive the valve core assembly (4) to close the fluid channel.

3. The wall-mounted faucet with automatic reset according to claim 2, characterized in that: The cross-sectional area of ​​the fluid cavity (33) connected to the outlet cavity (31) is smaller than the cross-sectional area of ​​the inlet cavity (32).

4. A wall-mounted faucet with automatic reset according to claim 2 or 3, characterized in that: The valve core assembly (4) includes a flow divider (41), a valve block (42), and an elastic body (43). The valve block (42) is close to the water outlet chamber (31), and the elastic body (43) is used to push the valve block (42) away from the water outlet chamber (31). The flow divider (41) is close to the water inlet chamber (32), and the fluid entering the fluid chamber (33) will pass through the flow divider (41).

5. The wall-mounted faucet with automatic reset according to claim 4, characterized in that: The diversion section (41) is fixedly connected to the movable housing (2). The diversion section (41) has a through hole (411) in the middle and several external protrusions (412) on the outside. The movable housing (2) has a slot (21) for clamping the external protrusions (412). The gaps formed between the external protrusions (412) are normally blocked by the inner wall of the fixed part (1). When the movable housing (2) extends, it becomes a channel for water to flow through. The diversion section (41) has a through hole (411) in the middle. The cross-section of the through hole (411) is smaller than the cross-sectional area of ​​the inlet of the outlet chamber (31).

6. The wall-mounted faucet with automatic reset according to claim 5, characterized in that: The diversion section (41) extends near the water inlet chamber (32) with a diversion protrusion (413), which guides the fluid near the center to the surrounding areas.

7. The wall-mounted faucet with automatic reset according to claim 1, characterized in that: The movable housing (2) has an inner protrusion (22) near the fixed part (1). The fixed part (1) has a step (11) adapted to the inner protrusion (22). An elastic part (5) for resetting is provided between the step (11) and the inner protrusion (22). An inner wall opening (23) is provided on the side wall of the fixed part (1). A buoyancy ball (13) is installed at the inner wall opening (23). The movable housing (2) has an inner wall opening (23) adapted to the buoyancy ball (13). When the movable housing (2) is in the pulled-out state, the buoyancy ball (13) floats up under the buoyancy of the fluid inside the fixed part (1) and cooperates with the inner wall opening (23) to maintain the extended state.

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