An induction spray head for a faucet

Abstract

The utility model relates to the technical field of shower head, specifically disclose a kind of induction shower head for faucet, comprising: butt joint pipe fitting, valve assembly, sensing component, power supply component, base and shell;The butt joint pipe fitting is equipped with first water delivery pipeline, and the two ends of the water delivery pipeline are water inlet and first interface respectively, and the water inlet is equipped with the butt joint thread connected with faucet each other.The utility model passes through the butt joint thread of butt joint pipe fitting water inlet setting, so that it can be directly and ordinary faucet are connected with screwing.This design breaks the limitation of complex modification to faucet when installing traditional sensing equipment, user does not need to help professional tool or seek professional personnel, only needs to simply rotate butt joint pipe fitting, can quickly complete the installation of induction shower head and ordinary faucet, greatly saves installation time and cost.

Description

Technical Field

[0001] This utility model relates to the field of nozzle technology, specifically to a sensor nozzle for a faucet. Background Technology

[0002] Faucets are indispensable water-using devices in daily life and various public places. Traditional faucets usually require manual operation to turn on and off, which is inconvenient in the process. For example, when hands are dirty or need to be kept clean, manually operating the faucet can easily soil the hands; in public places, frequent contact with faucet switches by multiple people can also lead to cross-infection of bacteria.

[0003] To address these issues, some sensor-operated faucets have emerged on the market. However, most of these faucets are complex in structure, have high installation and maintenance costs, and poor compatibility with existing faucets, making it difficult to meet the needs of different users. Therefore, developing a sensor-operated spray head that is simple in structure, easy to install, and well-compatible with existing faucets is of significant practical importance. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, the purpose of this utility model is to provide a sensor nozzle for a faucet.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a sensor nozzle for a faucet, comprising: Connecting pipe fittings, valve assemblies, sensing components, power supply components, base, and housing; The connecting pipe fitting is provided with a first water supply pipeline, the two ends of which are a water inlet and a first pair of interfaces, respectively. The water inlet is provided with a mating thread for connecting with a faucet. The valve assembly includes a second water supply pipeline and a solenoid valve. The solenoid valve is located on one side of the second water supply pipeline, with its drive end facing the second water supply pipeline. The drive end of the solenoid valve controls the second water supply pipeline to close or open by extending or retracting. The two ends of the second water supply pipeline are a second pair of interfaces and a water outlet, respectively. The first pair of interfaces and the second pair of interfaces are connected to each other, and the water outlet is connected to the outside. The valve assembly, the sensing assembly, and the power supply assembly are all mounted on one side of the base, and the base has a through hole that connects to the water outlet; the outer shell is fastened to one side of the base, and the base and the outer shell fasten the connecting pipe fitting, the valve assembly, the sensing assembly, and the power supply assembly into a sealed cavity; the connecting pipe fitting, the valve assembly, the sensing assembly, and the power supply assembly are electrically connected. Main working principle: A sensor-operated spray head for faucets can directly connect with ordinary faucets, providing users with a convenient and hygienic automatic water-sensing experience. The connecting pipe fitting is the key component for connecting the sensor spray head to the ordinary faucet. Its inlet has a matching thread that aligns with the ordinary faucet's outlet. Users simply align the inlet of the connecting pipe fitting with the outlet of the ordinary faucet, and then rotate the fitting. Utilizing the threaded engagement, the sensor spray head can be easily and securely installed onto the ordinary faucet. This design requires no modification to the ordinary faucet or the addition of extra connecting parts, greatly simplifying the installation process and allowing ordinary users to quickly complete the installation.

[0006] After connecting the fitting to the ordinary faucet, install the valve assembly, sensor assembly, and power supply assembly sequentially on one side of the base. The second pair of interfaces on the valve assembly mates with the first pair of interfaces on the fitting, ensuring the first and second water supply lines are connected, forming a complete water flow channel. Then, fasten the outer casing to one side of the base. The base and casing fit tightly together, securing the fitting, valve assembly, sensor assembly, and power supply assembly within a sealed cavity. This sealing design not only protects the internal components from external dust, moisture, and debris, extending the equipment's lifespan, but also ensures the stability of the connections between components and the safety of the electrical connections. The power supply assembly provides power to all components of the sensor-operated sprinkler head. Once the power supply is normal, the sensor assembly, solenoid valve, etc., enter standby mode. At this time, the drive end of the solenoid valve is extended, tightly pressing against the second water supply line, completely sealing it and preventing water flow. Even when a regular faucet is on, water cannot flow from the inlet into the second water supply pipe via the first water supply line, the first pair of connectors, and the second pair of connectors, and therefore cannot flow out of the outlet; the sensor-operated sprinkler head remains in standby mode, not dispensing water. The sensing component uses infrared sensing technology. When a person approaches the sensor-operated sprinkler head to a certain distance, the infrared sensor in the component can sensitively capture the infrared signals emitted by these people and convert them into electrical signals. This electrical signal contains information such as the presence and distance of the person, which is crucial for controlling the solenoid valve. The sensing component transmits the received electrical signal to the control circuit. The control circuit analyzes and processes the electrical signal to determine if the conditions for triggering the solenoid valve are met. When the control circuit determines that the human signal is valid and meets the water dispensing requirements, it sends a control command to the solenoid valve. This command is transmitted to the solenoid valve in the form of an electrical signal. Upon receiving the command, the solenoid valve's internal electromagnetic coil is energized, generating magnetic force that attracts the drive end to retract. After the drive end retracts, the second water supply line is no longer closed, and the second water supply line is opened. After the second water supply line is opened, water from a regular faucet can flow smoothly from the inlet into the first water supply line, and then through the first and second pairs of connectors into the second water supply line. Finally, the water flows out from the outlet, passing through the through-hole on the base to achieve automatic water dispensing. Users can use the dispensed water for handwashing, cleaning items, etc., as needed.

[0007] When a human body leaves the sensing range of the spray nozzle, the infrared sensor in the sensing component no longer receives infrared signals emitted by the human body. At this time, the sensing component sends an electrical signal indicating the disappearance of the human body signal to the control circuit. After detecting the disappearance of the human body signal, the control circuit sends a control command to the solenoid valve again after a preset delay time. Upon receiving the command, the solenoid valve de-energizes the solenoid coil, the magnetic force disappears, and the drive end extends under the action of the spring, re-closing the second water supply pipe, preventing water from continuing to flow, and the spray nozzle stops dispensing water, returning to its initial standby state.

[0008] Throughout the entire usage process, as long as the regular faucet remains open, the sensor-activated sprinkler head will continuously repeat the cycle of sensing and stopping water flow based on the approach and departure of a person, providing users with a continuous and convenient automatic water service. If the regular faucet is closed, no water will flow even if the sensor-activated sprinkler head detects a human signal, as there is no water supply.

[0009] Preferably, the first water supply pipeline is flat and located on one side of the center of the water inlet, with the center of the water inlet as the base point.

[0010] Preferably, the valve assembly has a first slot on one side, which is clamped and fixed to the first water supply pipeline; and a second slot is provided between the end of the slot and the side wall of the outlet. First blocks are provided on both sides of the first interface, which are clamped and fixed to the second slot. The first block is provided with a first fixing hole, which is screwed to the valve assembly.

[0011] Preferably, a second fixing hole is provided on one side of the water outlet, and a third fixing hole is provided on one side of the through hole. The valve assembly and the base are connected to each other through the second fixing hole and the third fixing hole.

[0012] Preferably, the outer shell has a first opening and a second opening. The first opening has a retaining edge, and the two sides of the water inlet have first buckles. The first buckles and the retaining edge are locked together. The second opening is engaged with the base.

[0013] Preferably, the sensing component includes a sensor and a waterproof housing; The base is provided with a second buckle, and the surface of the waterproof shell is provided with a second buckle. The second buckle and the second buckle are fastened to each other. The sensor is installed inside the waterproof shell, and the waterproof shell is provided with a sensing window on the side facing the base and the side facing the side wall of the shell. The sensor is connected to the two sensing windows.

[0014] Preferably, the power supply component includes a battery box and a battery, the battery being installed inside the battery box, and the battery box being connected to the base.

[0015] Preferably, the battery box has a cover on one side, which passes through the base and is flush with the surface of the base.

[0016] Preferably, the outlet is provided with an external thread that can be connected to other connectors.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a threaded connection at the inlet of the connector fitting, allowing it to be directly screwed into a regular faucet. This design overcomes the limitations of traditional sensor installations that require complex modifications to the faucet. Users can quickly install the sensor nozzle onto a regular faucet simply by rotating the connector fitting, without needing specialized tools or professional assistance, significantly saving installation time and costs.

[0018] The entire operation of the sensor-operated sprinkler head is based on human body sensing, requiring no complicated settings or learning from the user. Users of different ages and educational levels can easily learn and use it, providing a more convenient and intuitive water usage experience.

[0019] The base and housing securely hold the connecting pipes, valve assembly, sensing components, and power supply components within a sealed cavity, effectively preventing dust, moisture, and debris from entering the nozzle. This sealed design protects the components from external environmental corrosion and damage, especially in humid bathroom or kitchen environments, extending the equipment's lifespan, reducing the failure rate caused by environmental factors, and improving the equipment's stability and reliability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 Cross-section of the sensor-operated spray head for a faucet Figure 1 ; Figure 2 Cross-section of the sensor-operated spray head for a faucet Figure 2 ; Figure 3 This is a schematic diagram of the bottom of the sensor-operated spray head used in a faucet; Figure 4 This is a side view of the sensor-operated nozzle used in a faucet; Figure 5 This is a schematic diagram of the connecting pipe fittings; Figure 6 This is a schematic diagram of the base; Figure 7 This is a schematic diagram of the battery box; Figure 8 This is a schematic diagram of the bin cover; Figure 9 This is a schematic diagram of a valve assembly. Figure 10 This is a schematic diagram of the outer casing.

[0022] 1. Connecting fitting; 10. First water supply pipeline; 100. Inlet; 101. First connecting interface; 11. First snap-fit; 12. First locking block; 2. Valve assembly; 20. Second water supply pipeline; 200. Second connecting interface; 201. Outlet; 21. Solenoid valve; 22. First slot; 23. Second slot; 25. First fixing hole; 26. Second fixing hole; 3. Sensing assembly; 30. Sensor; 31. Waterproof shell; 32. Second locking block; 33. Sensing window; 4. Power supply assembly; 40. Battery box; 42. Battery; 43. Compartment cover; 5. Base; 50. Second snap-fit; 50. Third fixing hole; 6. Outer shell; 60. First opening; 61. Second opening; 62. Locking edge. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0025] Example 1 This embodiment discloses a sensor-operated nozzle for a faucet, such as... Figures 1-10As shown, the device includes a connecting pipe fitting 1, a valve assembly 2, a sensing assembly 3, a power supply assembly 4, a base 5, and a housing 6. This sensor-operated spray head for faucets can directly connect with ordinary faucets, providing users with a convenient and hygienic automatic water-sensing experience. The connecting pipe fitting 1 connects to the ordinary faucet: the connecting pipe fitting 1 is the key part for connecting the sensor spray head to the ordinary faucet. Its inlet 100 has a mating thread that matches the ordinary faucet. Users only need to align the inlet 100 of the connecting pipe fitting 1 with the outlet 201 of the ordinary faucet, and then rotate the connecting pipe fitting 1. Utilizing the threaded engagement, the sensor spray head can be easily and securely installed onto the ordinary faucet. This design requires no modification to the ordinary faucet or the addition of extra connecting parts, greatly simplifying the installation process and allowing ordinary users to quickly complete the installation.

[0026] After connecting fitting 1 is connected to a regular faucet, valve assembly 2, sensor assembly 3, and power supply assembly 4 are sequentially installed on one side of base 5. The second pair of interfaces 200 of valve assembly 2 mates with the first pair of interfaces 101 of connecting fitting 1, ensuring that the first water supply pipe 10 and the second water supply pipe 20 are connected, forming a complete water flow channel. Then, the outer casing 6 is fastened to one side of base 5. Base 5 and outer casing 6 fit tightly together, securing connecting fitting 1, valve assembly 2, sensor assembly 3, and power supply assembly 4 within a sealed cavity. This sealing design not only protects the internal components from external dust, moisture, and debris, extending the equipment's lifespan, but also ensures the stability of the connections between components and the safety of the electrical connections. Power supply assembly 4 provides power to all components of the entire sensor nozzle. When the power supply is normal, sensor assembly 3, solenoid valve 21, etc., enter standby mode. At this time, the drive end of solenoid valve 21 is extended, tightly pressing against the second water supply pipe 20, completely sealing the second water supply pipe 20 and preventing water flow. Even when a regular faucet is on, water cannot flow from the inlet 100 through the first water supply pipe 10, the first pair of interfaces 101, and the second pair of interfaces 200 into the second water supply pipe 20, and therefore cannot flow out from the outlet 201. The sensor-operated nozzle remains in a standby state with no water output. The sensing component 3 uses infrared sensing technology. When a human body approaches the sensor-operated nozzle to a certain distance, the infrared sensor 30 in the sensing component 3 can sensitively capture the infrared signals emitted by these human bodies and convert them into electrical signals. This electrical signal contains information such as the presence and distance of the human body, which is crucial for controlling the subsequent action of the solenoid valve 21. The sensing component 3 transmits the received electrical signal to the control circuit. The control circuit analyzes and processes the electrical signal to determine whether the conditions for triggering the solenoid valve 21 are met. When the control circuit determines that the human body signal is valid and meets the water output requirements, it sends a control command to the solenoid valve 21. This command is transmitted to the solenoid valve 21 in the form of an electrical signal. Upon receiving the command, the solenoid valve 21's internal electromagnetic coil is energized, generating magnetic force that attracts the drive end to retract. After the drive end retracts, the second water supply pipe 20 is no longer closed, and it is opened. With the second water supply pipe 20 open, water from a regular faucet can flow smoothly from the inlet 100 into the first water supply pipe 10, and then through the first pair of interfaces 101 and the second pair of interfaces 200 into the second water supply pipe 20. Finally, the water flows out from the outlet 201, passes through the through hole on the base 5, and achieves automatic water dispensing. Users can use the dispensed water for handwashing, cleaning items, etc., as needed.

[0027] When a human body leaves the sensing range of the induction nozzle, the infrared sensor 30 in the sensing component 3 no longer receives infrared signals emitted by the human body. At this time, the sensing component 3 sends an electrical signal indicating the disappearance of the human body signal to the control circuit. After detecting the electrical signal indicating the disappearance of the human body signal, the control circuit sends a control command to the solenoid valve 21 again after a preset delay time. Upon receiving the command, the solenoid valve 21 de-energizes the solenoid coil, the magnetic force disappears, and the drive end extends under the action of the spring, re-closing the second water supply pipe 20, preventing water from continuing to flow, and the induction nozzle stops discharging water, returning to the initial standby state.

[0028] Throughout the entire usage process, as long as the regular faucet remains open, the sensor-activated sprinkler head will continuously repeat the cycle of sensing and stopping water flow based on the approach and departure of a person, providing users with a continuous and convenient automatic water service. If the regular faucet is closed, no water will flow even if the sensor-activated sprinkler head detects a human signal, as there is no water supply.

[0029] In some optional embodiments, the first water supply pipeline 10 is flat and located on one side of the center of the inlet 100. This design optimizes the internal space layout while ensuring smooth water flow. Within a limited space, sufficient space is provided for the installation of the valve assembly 2, making the entire sensor nozzle structure more compact and reasonable. This not only does not affect the water delivery function but also effectively integrates the various components, improving the overall integrity and stability of the product.

[0030] In some optional embodiments, the first slot 22 on one side of the valve assembly 2 is clamped and fixed to the first water supply pipeline 10, initially determining the relative position of the connecting pipe 1 and the valve assembly 2. The first locking blocks 12 on both sides of the first connecting interface 101 are engaged with the second slot 23 between the end of the slot and the side wall of the outlet 201, further restricting the horizontal movement of the connecting pipe 1 and the valve assembly 2. Through the first fixing hole 25 on the first locking block 12, screws are used to tightly connect the first locking block 12 and the valve assembly 2, enhancing the firmness of the connection between the connecting pipe 1 and the valve assembly 2, preventing loosening or separation under water flow impact or external force, and ensuring the stability and sealing of the water circuit connection.

[0031] In some optional embodiments, the valve assembly 2 is connected to the base 5 using screws through the second fixing hole 26 on one side of the outlet 201 and the third fixing hole 51 on the other side of the through hole. This connection method ensures the stable installation of the valve assembly 2 on the base 5, making the valve assembly 2 and the base 5 a whole. During the operation of the sensing nozzle, it can withstand water pressure and external forces, ensuring the normal operation of each component.

[0032] In some optional embodiments, the retaining edge 62 of the first opening 60 of the outer casing 6 engages with the first latches 11 on both sides of the inlet 100, initially fixing the outer casing 6 to the inlet 100 and restricting the movement of the outer casing 6 in the direction perpendicular to the axis of the inlet 100. The second opening 61 of the outer casing 6 engages with the base 5, completing the overall connection between the outer casing 6 and the base 5. This dual fixing method ensures that the outer casing 6 is firmly fastened to the base 5, forming a sealed cavity, effectively protecting the internal components from the influence of the external environment, while ensuring the integrity and aesthetics of the sensor nozzle.

[0033] In some optional embodiments, the second latch 50 of the base 5 engages with the second latch 32 on the surface of the waterproof housing 31, fixing the waterproof housing 31 of the sensing assembly 3 to the base 5. The sensor 30 installed inside the waterproof housing 31 detects external signals through two sensing windows 33 facing the base 5 and the side wall of the housing 6. When a human body approaches, the sensor 30 receives the signal emitted by the human body through the sensing windows 33 and converts it into an electrical signal, which is then transmitted to the control circuit to realize the sensing function. The design of the waterproof housing 31 can protect the sensor 30 from moisture and other influences while ensuring normal signal transmission.

[0034] In some optional embodiments, the battery 42 is installed inside the battery box 40, which is connected to the base 5 to ensure that the power supply component 4 is stably installed inside the sensor nozzle. The battery 42 provides the electrical energy required for the operation of the sensor component 3, solenoid valve 21, etc., ensuring that the sensor nozzle can work normally without an external power source, thus improving the product's flexibility and convenience.

[0035] In some optional embodiments, a cover 43 is provided on one side of the battery 42 box 40, which passes through the base 5 and is flush with the surface of the base 5. This design makes it convenient for users to open the cover 43 to replace the battery 42, while maintaining the flatness and aesthetics of the sensor nozzle. The cover 43 does not affect the overall appearance and avoids potential collision damage caused by the protruding cover 43.

[0036] In some optional embodiments, the external thread on the water outlet 201 can be connected to other connectors. When users have special needs, such as needing to connect longer water pipes, specific sprinklers, or other water circuit equipment, other connectors can be securely connected to the water outlet 201 through the external thread, expanding the functionality and range of the sensor sprinkler and meeting the water usage needs in different scenarios.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A sensor-operated nozzle for a faucet, characterized in that, include: Connecting pipe fittings, valve assemblies, sensing components, power supply components, base, and housing; The connecting pipe fitting is provided with a first water supply pipeline, the two ends of which are a water inlet and a first pair of interfaces, respectively. The water inlet is provided with a mating thread for connecting with a faucet. The valve assembly includes a second water supply pipeline and a solenoid valve. The solenoid valve is located on one side of the second water supply pipeline, with its drive end facing the second water supply pipeline. The drive end of the solenoid valve controls the second water supply pipeline to close or open by extending or retracting. The two ends of the second water supply pipeline are a second pair of interfaces and a water outlet, respectively. The first pair of interfaces and the second pair of interfaces are connected to each other, and the water outlet is connected to the outside. The valve assembly, the sensing assembly, and the power supply assembly are all mounted on one side of the base, and the base has a through hole that connects to the water outlet; the outer shell is fastened to one side of the base, and the base and the outer shell fasten the connecting pipe fitting, the valve assembly, the sensing assembly, and the power supply assembly into a sealed cavity; the connecting pipe fitting, the valve assembly, the sensing assembly, and the power supply assembly are electrically connected.

2. The sensor-operated nozzle for a faucet according to claim 1, characterized in that, The first water supply pipeline is flat and is located on one side of the center of the water inlet, with the center of the water inlet as the base point.

3. The sensor-operated nozzle for a faucet according to claim 1, characterized in that, The valve assembly has a first slot on one side, which is locked and fixed to the first water supply pipeline; and a second slot is provided between the end of the slot and the side wall of the outlet. The first locking blocks are provided on both sides of the first coupling interface, and the first locking blocks are locked and fixed to the second slot; the first locking block is provided with a first fixing hole, and the first locking block is screwed to the valve assembly through the first fixing hole.

4. The sensor-operated nozzle for a faucet according to claim 1, characterized in that, A second fixing hole is provided on one side of the water outlet, and a third fixing hole is provided on one side of the through hole. The valve assembly and the base are connected to each other through the second fixing hole and the third fixing hole.

5. The sensor-operated spray head for a faucet according to claim 1, characterized in that, The outer casing has a first opening and a second opening. The first opening has a retaining edge, and the two sides of the water inlet have first buckles. The first buckles and the retaining edge are locked together. The second opening is fastened to the base.

6. The sensor-operated nozzle for a faucet according to claim 1, characterized in that, The sensing component includes a sensor and a waterproof housing; The base is provided with a second buckle, and the surface of the waterproof shell is provided with a second buckle. The second buckle and the second buckle are fastened to each other. The sensor is installed inside the waterproof shell, and the waterproof shell is provided with a sensing window on the side facing the base and the side facing the side wall of the shell. The sensor is connected to the two sensing windows.

7. The sensor-operated nozzle for a faucet according to claim 1, characterized in that, The power supply component includes a battery box and a battery. The battery is installed inside the battery box, and the battery box is connected to the base.

8. The sensor-operated nozzle for a faucet according to claim 7, characterized in that, The battery box has a cover on one side, which passes through the base and is flush with the surface of the base.

9. The sensor-operated nozzle for a faucet according to claim 1, characterized in that, The outlet is provided with an external thread that can be connected to other connectors.

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