A water outlet control device

Abstract

A water outlet control device, comprising a valve body assembly and a control assembly arranged in the valve body assembly, the valve body assembly is provided with a pressure relief port, the control assembly comprises a motor, a first pressure rod connected to the output end of the motor in transmission and a swing rod swing connected to the valve body assembly, the first pressure rod is driven by the motor and presses down or releases the first end of the swing rod, so that the second end of the swing rod opens or closes the pressure relief port, compared with the existing technology, the electromagnetic valve control back pressure flow channel is directly driven by mechanical transmission to drive the swing rod to act, avoiding the risk of misoperation caused by electromagnetic interference, realizing the precise opening and closing control of the pressure relief port, the structure is more simple, the response is more stable, especially under the condition of high pressure water supply, it can still work reliably, avoiding the out of control problem caused by magnetic force attenuation, and reducing the production cost and maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of water outlet device technology, and in particular to a water outlet control device. Background Technology

[0002] In smart bathroom appliances, especially the flushing system of smart toilets, precise control of water inlet and outlet is crucial for ensuring flushing effectiveness and water safety. Current technology primarily uses solenoid valves to control the pressure relief channel, thereby utilizing the back pressure principle to control the opening and closing of the main water flow channel. Such devices typically include an inlet, inlet chamber, back pressure chamber, pressure relief channel, and outlet channel. A guide hole is installed on the valve diaphragm to connect the inlet chamber and back pressure chamber, and a resilient device provides the reset force, thus achieving automatic opening and closing. These devices feature good sealing and fast response.

[0003] However, the above-mentioned electromagnetic control method has revealed several technical defects in practical applications: First, the structure of the solenoid valve is relatively complex and the manufacturing cost is high; second, in a high-pressure water supply environment, the solenoid valve may have insufficient opening power, leading to the risk of failure. Utility Model Content

[0004] This utility model provides a water outlet control device, which aims to solve the technical problems of high cost and easy loss of control under high pressure in the existing electromagnetic valve control method.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A water outlet control device includes a valve body assembly and a control component disposed within the valve body assembly. The valve body assembly is provided with a pressure relief port. The control component includes a motor, a first pressure rod that is driven to the output end of the motor, and a swing rod that is oscillatingly connected to the valve body assembly. The first pressure rod is driven by the motor and presses down or releases the first end of the swing rod, so that the second end of the swing rod opens or closes the pressure relief port to control the flow of water inside the valve body assembly.

[0007] Furthermore, a reset element is provided between the rocker arm and the valve body assembly. The two ends of the reset element abut against the rocker arm and the valve body assembly respectively. The reset element is used to provide a force to the rocker arm to close the pressure relief port.

[0008] Furthermore, the lever is rotatably connected to the valve body assembly near the second end. The valve body assembly is provided with a fixing post, and the middle part of the lever is provided with a fixing groove. The two ends of the reset member are respectively connected to the fixing post and the fixing groove.

[0009] Furthermore, the valve body assembly is provided with an inlet and an outlet. A diaphragm assembly is installed inside the valve body assembly. The diaphragm assembly divides the inner cavity of the valve body assembly into an inlet chamber that connects to the inlet, a back pressure chamber that connects to the pressure relief port, and an outlet chamber that connects to the outlet. The back pressure chamber is connected to the pressure relief port. The diaphragm assembly is provided with a flow passage that connects the inlet chamber and the back pressure chamber. The diaphragm assembly controls whether the inlet chamber and the outlet chamber are connected according to the opening and closing of the pressure relief port.

[0010] Furthermore, the valve body is provided with multiple diaphragm assemblies, and multiple back pressure chambers and multiple water outlet chambers are formed between each diaphragm assembly and the valve body assembly. The valve body is provided with water outlets that are connected to each water outlet chamber. The spaces separated in the valve body assembly are interconnected and form a water inlet chamber.

[0011] The number of swing arms corresponds to the back pressure chamber configuration. The motor drives the first pressure rod to press down or release the first end of any swing arm, causing the second end of the swing arm to open or close the corresponding pressure relief port, thereby opening or closing the water outlet.

[0012] Furthermore, it also includes a second pressure rod, the middle of which is rotatably connected to the valve body assembly. By manually driving the second pressure rod to swing, either end of the second pressure rod can press down or release the first end of either swing rod, thereby opening or closing the corresponding pressure relief port at the second end of the swing rod, thus opening or closing the water outlet.

[0013] Furthermore, the valve body assembly is provided with a movable operating element, which is connected to the second pressure rod, and the operating element drives the second pressure rod to swing.

[0014] Furthermore, the rotation axes of the first and second pressure rods are set coaxially.

[0015] Furthermore, there are two diaphragm assemblies and two swing arms, with the swing arms located on both sides of the rotation axis of the first pressure rod, and the second ends of the two swing arms being positioned close to the first pressure rod and the second pressure rod.

[0016] Furthermore, the valve body assembly is also provided with an anti-siphon assembly, which includes an anti-siphon cover connected to the valve body assembly. The space enclosed by the anti-siphon cover and the valve body assembly forms an installation cavity. The valve body assembly is provided with a communication port connecting the water inlet cavity and the installation cavity. The anti-siphon cover is provided with a vent port connecting to the atmospheric environment. The installation cavity is provided with a valve core that can move under water pressure. The valve core has a first position for opening the vent port and a second position for closing the communication port.

[0017] When the valve core is in the first position, the connecting port, the mounting cavity, and the vent are interconnected; when the valve core is in the second position, the connecting port, the mounting cavity, and the vent are closed.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model proposes a water outlet control device, including a valve body assembly and a control component disposed within the valve body assembly. The valve body assembly is provided with a pressure relief port. The control component includes a motor, a first pressure rod connected to the output end of the motor, and a swing rod connected to the valve body assembly. The first pressure rod is driven by the motor and presses down or releases the first end of the swing rod, so that the second end of the swing rod opens or closes the pressure relief port. Compared with the prior art of using a solenoid valve to control the back pressure flow channel, this solution directly drives the swing rod to move through mechanical transmission, avoiding the risk of malfunction caused by electromagnetic interference, realizing precise opening and closing control of the pressure relief port, with a simpler structure, more stable response, and reduced production costs and maintenance difficulty.

[0020] 2. The water outlet control device proposed in this utility model has a reset component between the rocker arm and the valve body assembly. The reset component is used to provide a force to the rocker arm to close the pressure relief port, ensuring that the rocker arm always remains in a safe state of closing the pressure relief port when the motor is not driven, thereby improving the reliability and safety of the device.

[0021] 3. The water outlet control device proposed in this utility model further includes a second pressure rod, the middle of which is rotatably connected to the valve body assembly. By manually driving the second pressure rod to swing, either end of the second pressure rod presses down or releases the first end of either swing rod, causing the second end of the swing rod to open or close the corresponding pressure relief port, thereby opening or closing the water outlet. This design, while retaining the automatic control function, further provides a manual emergency operation mode, effectively improving the device's flexibility and fault response capability. It ensures reliable control of the water outlet status even under abnormal operating conditions such as power outages or motor failures, enhancing system redundancy and safety.

[0022] 4. The water outlet control device proposed in this utility model is further provided with an anti-siphon component in the valve body assembly. The anti-siphon component is used to block the backflow path of the medium between the water supply pipeline and the water outlet end, and prevent sewage backflow and pollution caused by negative pressure, which complies with the drinking water hygiene and safety standards. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is one of the schematic diagrams of a water outlet control device according to the present invention;

[0025] Figure 2 This is a second schematic diagram of a water outlet control device according to the present invention;

[0026] Figure 3 This is a cross-sectional view of a water outlet control device according to the present invention (the first pressure rod is in the initial position).

[0027] Figure 4 This is a cross-sectional view of a water outlet control device according to the present invention (the first pressure rod is in the working position).

[0028] Figure 5 This is a cross-sectional view of a water outlet control device according to the present invention (the second pressure rod is in the initial position).

[0029] Figure 6 This is a cross-sectional view of a water outlet control device according to the present invention (the second pressure rod is in the working position).

[0030] Figure 7 This is an exploded view of a water outlet control device according to the present invention;

[0031] Figure 8 for Figure 3 A magnified view of a section at point A in the middle;

[0032] Figure 9 for Figure 3 A magnified view of a section at point B in the middle;

[0033] In the diagram, 10 is the valve body assembly; 20 is the upper body; 201 is the fixing column; 202 is the pressure relief port; 30 is the lower body; 3011 is the water inlet chamber; 3012 is the water inlet; 3021 is the water outlet chamber; 3022 is the water outlet; 303 is the connecting port; 40 is the motor; 501 is the first pressure rod; 502 is the second pressure rod; 60 is the operating component; 70 is the swing arm; 701 is the fixing groove; 80 is the reset component; 90 is the diaphragm assembly; 901 is the diaphragm body; 902 is the support cover; 9021 is the support column; 90211 is the flow passage hole; 903 is the reset spring; 9031 is the descaling needle; 100 is the back pressure chamber; 110 is the anti-siphon assembly; 1101 is the anti-siphon cover; 11011 is the vent; 1102 is the valve core; and 120 is the drain pipe. Detailed Implementation

[0034] The following is combined with Figures 1 to 7 This utility model will be described in detail.

[0035] A water outlet control device includes a valve body assembly 10 and a control component disposed within the valve body assembly 10. The valve body assembly 10 has a pressure relief port 202. The control component includes a motor 40, a first pressure rod 501 driven by the output end of the motor 40, and a swing rod 70 oscillatingly connected to the valve body assembly 10. The first pressure rod 501 is driven by the motor 40 and presses down or releases the first end of the swing rod 70, causing the second end of the swing rod 70 to open or close the pressure relief port 202. The second end of the swing rod 70 is provided with a sealing gasket to seal the pressure relief port 202. The rotation range of the first pressure rod 501 driven by the motor 40 is from 0 degrees to 120 degrees, ensuring that the first end of the swing rod 70 can be pressed down and released.

[0036] This water outlet control device achieves precise control of the pressure relief port 202 through mechanical transmission, abandoning the traditional design approach of directly applying a solenoid valve to the pressure relief mechanism. Specifically, the motor 40 serves as the power source, providing controllable rotational output; the first pressure rod 501 is connected to the output end of the motor 40, converting the rotational motion of the motor 40 into a pressing or releasing action on the swing rod 70; the swing rod 70 is mounted on the valve body assembly 10 in a swingable manner, forming a lever mechanism. Its first end receives the force from the first pressure rod 501, and its second end directly controls the opening and closing of the pressure relief port 202. The overall structure achieves the opening or closing of the pressure relief port 202 through the linkage mechanism of the motor 40, the first pressure rod 501, and the swing rod 70.

[0037] The first end of the rocker arm 70 is located on the movement trajectory of the first pressure rod 501 and is used to receive mechanical pressure from the first pressure rod 501; the second end is set corresponding to the pressure relief port 202, and the rocker arm 70 can be blocked or opened by swinging up and down. The fulcrum of the rocker arm 70 can be rotatably connected to the valve body assembly 10 through a pin, a rotating shaft or an integrally formed rotating arm structure, so as to ensure that it can swing flexibly around a fixed axis when subjected to force.

[0038] The above-mentioned components form a collaborative working mechanism: after the motor 40 starts, it drives the first pressure rod 501 to rotate. When the first pressure rod 501 rotates to a predetermined angle, its free end abuts against and presses down the first end of the swing rod 70, causing the swing rod 70 to swing, thereby driving the second end to lift up and opening the pressure relief port 202; conversely, when the motor 40 rotates in the opposite direction, the first pressure rod 501 retracts and releases pressure on the swing rod 70, the swing rod 70 returns to its original position, the second end re-presses the cover tightly, and closes the pressure relief port 202 to control the opening and closing of the water passage inside the valve body assembly 10.

[0039] Because of the mechanical linkage structure between the first pressure rod 501 driven by the motor 40 and the swing rod 70, the risk of malfunction caused by electromagnetic interference and the risk of runaway caused by insufficient magnetic force of the solenoid valve under high water pressure are avoided, which significantly improves the reliability of the device in opening and closing under high pressure conditions. At the same time, the structure simplifies the complex circuit and magnetic circuit design of the original electromagnetic drive system, reducing manufacturing costs and maintenance difficulty.

[0040] like Figures 3 to 6 As shown, a reset member 80 is provided between the rocker arm 70 and the valve body assembly 10. The two ends of the reset member 80 abut against the rocker arm 70 and the valve body assembly 10, respectively. The reset member 80 provides a force to the rocker arm 70 to close the pressure relief port 202. By providing the reset member 80 between the rocker arm 70 and the valve body assembly 10, its elasticity provides the rocker arm 70 with a restoring force that continuously tends to close the pressure relief port 202, thereby ensuring that the control assembly can automatically return to a sealed state in a non-driven state, improving the safety and reliability of the device operation.

[0041] The "reset element 80" is a functional component capable of storing and releasing elastic potential energy. Its main function is to actively push the swing arm 70 in the reverse direction after the motor 40 stops driving and the first pressure rod 501 releases pressure on the swing arm 70, causing its second end to press against the pressure relief port 202 again, thus completing the automatic closing action. The reset element 80 can be a helical compression spring or a torsion spring, or it can be replaced with other forms of elastic mechanisms such as a rubber elastomer, a bellows-type elastic element, or a constant force spring. When a helical spring is used, one end abuts against the boss or groove on the swing arm 70, and the other end abuts against the inner wall of the valve body assembly 10 or a specially designed support step. If a torsion spring is used, it is sleeved on the shaft of the swing arm 70, with its two free ends pressing against the body of the swing arm 70 and the valve body assembly 10, thereby generating a restoring torque during the deflection of the swing arm 70. This passive reset mechanism does not rely on external energy and can still ensure that the device automatically enters a safe closing state in abnormal situations such as power failure, signal interruption, or control system failure.

[0042] The spring force parameters of the reset element 80 need to be reasonably matched according to the clamping force required for sealing the pressure relief port 202, the lever ratio of the swing rod 70, and the magnitude of the system back pressure. For example, under normal domestic water supply pressure (0.1~0.6MPa), the initial preload provided by the reset element 80 is set between 2N and 10N to ensure that it can overcome the opening tendency caused by the diaphragm back pressure without affecting the driving efficiency of the motor 40 due to excessive resistance.

[0043] like Figures 3 to 6As shown, the rocker arm 70 is rotatably connected to the valve body assembly 10 near its second end. The valve body assembly 10 has a fixing post 201, and the rocker arm 70 has a fixing groove 701 in its middle. The two ends of the reset member 80 are respectively connected to the fixing post 201 and the fixing groove 701. To ensure that the rocker arm 70 can reliably reset after the driving force is released, the reset member 80 needs to be provided to provide a continuous and directional restoring torque. Therefore, in this embodiment, the pivot point of the rocker arm 70 is set near its second end, so that the first end forms a longer lever arm when it is pressed down, which helps to reduce the force required for driving and improve the response sensitivity.

[0044] The valve body assembly 10 is provided with an inlet 3012 and an outlet 3022. A diaphragm assembly 90 is provided inside the valve body assembly 10. The diaphragm assembly 90 divides the inner cavity of the valve body assembly 10 into an inlet cavity 3011 connected to the inlet 3012, a back pressure cavity 100 connected to the pressure relief port 202, and an outlet cavity 3021 connected to the outlet 3022. The back pressure cavity 100 is connected to the pressure relief port 202. The diaphragm assembly 90 is provided with a flow passage 90211 connecting the inlet cavity 3011 and the back pressure cavity 100. The diaphragm assembly 90 controls whether the inlet cavity 3011 and the outlet cavity 3021 are connected according to the opening and closing of the pressure relief port 202.

[0045] like Figure 7 and Figure 8 As shown, the diaphragm assembly 90 includes a diaphragm body 901 and a support cover 902. The diaphragm body 901 is mounted on the support cover 902, and the four edges of the diaphragm body 901 protrude beyond the four edges of the support cover 902 and are fixed. The central region can flex and deform under the action of pressure difference, thereby controlling the flow between the inlet chamber 3011 and the outlet chamber 3021. The support cover 902 is provided with a support column 9021 penetrating the diaphragm body 901. The support column 9021 is a hollow structure with both ends through to form a flow hole 90211. Furthermore, a return spring 903 is provided in the back pressure chamber 100. The two ends of the return spring 903 abut against the valve body assembly 10 and the diaphragm body 901, respectively. The return spring 903 is also provided with a descaling needle 9031 that is movably inserted through the flow hole 90211. There is a flow gap between the descaling needle 9031 and the flow hole 90211.

[0046] The collaborative working process of each component is as follows:

[0047] Initially, the pressure relief port 202 is closed. The back pressure chamber 100 receives water flow from the inlet chamber 3011 through the flow passage 90211. Because the force-bearing area of ​​the diaphragm body 901 in the back pressure chamber 100 is greater than the force-bearing area of ​​the diaphragm body 901 in the inlet chamber 3011, the diaphragm body 901 closes the outlet chamber 3021. Figure 3 or Figure 5As shown. When water needs to be turned on, the motor 40 drives the first pressure rod 501 to press down the first end of the swing rod 70, causing its second end to leave the pressure relief port 202. The back pressure chamber 100 is quickly depressurized. At this time, the pressure in the inlet chamber 3011 is much higher than that in the back pressure chamber 100, thereby pushing the diaphragm body 901 to deform upward. The inlet chamber 3011 is connected to the outlet chamber 3021, and water flows out through the outlet 3022, as shown. Figure 4 or Figure 6 The arrow in the diagram indicates the direction of water flow. When water flow stops, motor 40 drives the first pressure rod 501 away from the first end of the swing rod 70. The second end of the swing rod 70, under the action of the reset component 80, re-closes the pressure relief port 202. The back pressure chamber 100 is pressurized again, and the diaphragm body 901 falls back under the action of back pressure, closing the water outlet chamber 3021. Figure 3 or Figure 5 As shown.

[0048] The valve body is provided with multiple diaphragm assemblies 90, and multiple back pressure chambers 100 and multiple water outlet chambers 3021 are formed between each diaphragm assembly 90 and the valve body assembly 10. The valve body is provided with water outlets 3022 corresponding to each water outlet chamber 3021. Each diaphragm assembly 90 is interconnected in the space separated in the valve body assembly 10, and forms a water inlet chamber 3011. The number of rocker arms 70 corresponds to the configuration of the back pressure chambers 100. The motor 40 drives the first pressure rod 501 to press down or release the first end of any rocker arm 70, so that the second end of the rocker arm 70 opens or closes the corresponding pressure relief port 202, thereby opening or closing the water outlet 3022.

[0049] By setting up multiple diaphragm assemblies 90 with corresponding back pressure chambers 100 and outlet chambers 3021, combined with a matching number of swing rods 70 and selectively acting first pressure rods 501, independent control of multiple water outlet channels is achieved. Multiple diaphragm assemblies 90 are integrated within the same valve body assembly 10, each forming an independent back pressure chamber 100 and outlet chamber 3021 in its respective area. The outlet chambers 3021 are connected to independent outlets 3022 to support water output for different purposes, such as jet flushing and brush ring flushing. The inlet chambers 3011 separated by the diaphragm assemblies 90 are interconnected or share a common inlet chamber 3011, ensuring that each branch shares the same water source input, simplifying flow channel design and reducing the number of external interfaces. Simultaneously, the number of swing rods 70 corresponds one-to-one with the back pressure chambers 100. The first end of each swing rod 70 can be selectively pressed down or released by the first pressure rod 501, while its second end is used to open or close the corresponding pressure relief port 202, thereby controlling the action state of the corresponding diaphragm assembly 90.

[0050] The water outlet control device also includes a second pressure rod 502, such as Figure 5As shown in Figure 6, the rotation axes of the first pressure rod 501 and the second pressure rod 502 are coaxially arranged. The middle part of the second pressure rod 502 is rotatably connected to the valve body assembly 10. By manually driving the second pressure rod 502 to swing, either end of the second pressure rod 502 presses down or releases the first end of either swing rod 70, so that the second end of the swing rod 70 opens or closes the corresponding pressure relief port 202, thereby opening or closing the water outlet 3022.

[0051] The addition of a second pressure rod 502 enables mechanical water outlet control without electric drive. The second pressure rod 502, as a manually operated component independent of the motor 40 drive system, is designed to allow users to directly intervene in the movement of the lever 70 without relying on an external power source or electronic control system. This allows control of the opening and closing of the pressure relief port 202, ultimately regulating the on / off state of the water outlet 3022. This solves the technical problem of not being able to perform the flushing function during power outages, achieving the technical effect of completing basic flushing operations even in the event of a motor 40 malfunction or power outage, thus improving product safety and ease of use.

[0052] The valve body assembly 10 is provided with a movable operating member 60, which is connected to the second pressure rod 502. The operating member 60 drives the second pressure rod 502 to swing. Furthermore, the operating member 60 is a steel wire rope.

[0053] There are two diaphragm assemblies 90 and two rocker arms 70. The rocker arms 70 are located on both sides of the rotation axis of the first pressure rod 501. The second ends of the two rocker arms 70 are located close to the first pressure rod 501 and the second pressure rod 502. Correspondingly, the valve body assembly 10 has two water outlet chambers 3021 and two water outlets 3022 that connect the two water outlet chambers 3021 respectively. By setting up two sets of diaphragm assemblies 90 and a corresponding number of rocker arms 70, and symmetrically arranging them on both sides of the rotation axis of the first pressure rod 501, separate control of two independent water paths, such as the jet water path and the brush ring water path, is achieved.

[0054] like Figures 3 to 7 as well as Figure 9 As shown, the valve body assembly 10 is also provided with an anti-siphon assembly 110. The anti-siphon assembly 110 includes an anti-siphon cover 1101 connected to the valve body assembly 10. The space enclosed by the anti-siphon cover 1101 and the valve body assembly 10 forms an installation cavity. The valve body assembly 10 is provided with a communication port 303 connecting the water inlet cavity 3011 and the installation cavity. The anti-siphon cover 1101 is provided with a vent 11011 connected to the atmospheric environment. The installation cavity is provided with a valve core 1102 that can move under water pressure. The valve core 1102 has a first position with the vent 11011 open and a second position with the communication port 303 closed.

[0055] When the valve core 1102 is in the first position, the connecting port 303, the mounting cavity, and the vent 11011 are interconnected; when the valve core 1102 is in the second position, the connecting port 303, the mounting cavity, and the vent 11011 are closed.

[0056] This embodiment effectively prevents sewage backflow in the water supply system during water outages or under negative pressure by incorporating an anti-siphon component 110, thus avoiding contamination of drinking water pipelines and ensuring water safety. This structure utilizes fluid pressure to drive the valve core 1102 to automatically switch states, achieving a passive protection logic of "pressurized sealing and pressure-free ventilation," enabling a safe response without external energy intervention.

[0057] In this embodiment, the valve body assembly 10 includes an upper body 20 and a lower body 30. The control assembly is located on the upper body 20. The upper body 20 is provided with a pressure relief port 202 and a fixing post 201. The lower body 30 is provided with a water inlet 3012 and two water outlets 3022. The lower body 30 is provided with a receiving groove for placing the anti-siphon assembly 110. The space enclosed by the anti-siphon cover 1101 and the receiving groove constitutes an installation cavity. A connecting port 303 is provided on the lower body 30. The anti-siphon cover 1101 in the anti-siphon assembly 110 is connected to the lower body 30. Furthermore, water discharged from the pressure relief port 202 and collected in the upper body 20 is connected to any of the water outlet chambers 3021 through a drain pipe 120, thereby discharging the water in the upper body 20.

[0058] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A water outlet control device, comprising a valve body assembly and a control component disposed within the valve body assembly, characterized in that, The valve body assembly is provided with a pressure relief port. The control assembly includes a motor, a first pressure rod connected to the output end of the motor, and a swing rod connected to the valve body assembly. The first pressure rod is driven by the motor and presses down or releases the first end of the swing rod, so that the second end of the swing rod opens or closes the pressure relief port to control the opening and closing of the water passage inside the valve body assembly.

2. The water outlet control device as described in claim 1, characterized in that, A reset member is provided between the rocker arm and the valve body assembly. The two ends of the reset member abut against the rocker arm and the valve body assembly, respectively. The reset member is used to provide a force to the rocker arm to close the pressure relief port.

3. The water outlet control device as described in claim 2, characterized in that, The rocker arm is rotatably connected to the valve body assembly near the second end. The valve body assembly is provided with a fixing post. The middle part of the rocker arm is provided with a fixing groove. The two ends of the reset member are respectively connected to the fixing post and the fixing groove.

4. The water outlet control device as described in claim 1, characterized in that, The valve body assembly has an inlet and an outlet. A diaphragm assembly is installed inside the valve body assembly. The diaphragm assembly divides the inner cavity of the valve body assembly into an inlet chamber that connects to the inlet, a back pressure chamber that connects to the pressure relief port, and an outlet chamber that connects to the outlet. The back pressure chamber is connected to the pressure relief port. The diaphragm assembly has a flow hole that connects the inlet chamber and the back pressure chamber. The diaphragm assembly controls whether the inlet chamber and the outlet chamber are connected according to the opening and closing of the pressure relief port.

5. The water outlet control device as described in claim 4, characterized in that, The valve body is provided with a plurality of diaphragm assemblies, and a plurality of back pressure chambers and a plurality of water outlet chambers are formed between each diaphragm assembly and the valve body assembly. The valve body is provided with a water outlet corresponding to each water outlet chamber. The spaces separated by each diaphragm assembly in the valve body assembly are interconnected and constitute the water inlet chamber. The number of swing arms corresponds to the configuration of the back pressure chamber. The motor drives the first pressure rod to press down or release the first end of any of the swing arms, so that the second end of the swing arm opens or closes the corresponding pressure relief port, thereby opening or closing the water outlet.

6. The water outlet control device as described in claim 5, characterized in that, It also includes a second pressure rod, the middle of which is rotatably connected to the valve body assembly. The second pressure rod is driven to swing manually or mechanically, so that either end of the second pressure rod presses down or releases the first end of either of the swing rods, thereby opening or closing the corresponding pressure relief port at the second end of the swing rod, and thus opening or closing the water outlet.

7. The water outlet control device as described in claim 6, characterized in that, The valve body assembly is provided with a movable operating element, which is connected to the second pressure rod, and the second pressure rod is driven to swing by the operating element.

8. The water outlet control device as described in claim 6, characterized in that, The rotation axes of the first and second pressure rods are set coaxially.

9. The water outlet control device as described in claim 6, characterized in that, The number of diaphragm assemblies and pendulums is two. The pendulums are located on both sides of the rotation axis of the first pressure rod, and the second ends of the two pendulums are located close to the first pressure rod and the second pressure rod.

10. The water outlet control device as described in claim 4, characterized in that, The valve body assembly is further provided with an anti-siphon assembly, which includes an anti-siphon cover connected to the valve body assembly. The space enclosed by the anti-siphon cover and the valve body assembly forms an installation cavity. The valve body assembly is provided with a communication port connecting the water inlet cavity and the installation cavity. The anti-siphon cover is provided with a vent communicating with the atmospheric environment. The installation cavity is provided with a valve core that can move under water pressure. The valve core has a first position for opening the vent and a second position for closing the communication port. When the valve core is in the first position, the connecting port, the mounting cavity, and the vent are interconnected; when the valve core is in the second position, the connecting port, the mounting cavity, and the vent are closed.

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