Dual induction mode pull-out faucet

CN224649219UActive Publication Date: 2026-08-18NINGBO WANHAI VALVE TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202521728506.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2026-08-18
Estimated Expiration
2035-08-13

AI Technical Summary

Technical Problem

[0004]1、感应模式单一:仅依赖单一感应器,如红外感应器实现出水控制,手必须移至感应位置才能进行感应,然抽拉操作时,手大多不在感应为准,使得必须用另外一只手保持在感应位置,操作非常不便;另,其感应效果易受环境光线(如强光、逆光)、物体颜色或遮挡角度影响,存在误触发或感应失效的风险,难以适应复杂使用场景

Benefits of technology

[0027] Compared with the prior art, the advantages of this utility model are as follows: by setting up an infrared sensor and a Hall sensor in combination with a magnet to form a dual sensing mode, the infrared sensor can sense external objects and output a first sensing signal. The magnet moves synchronously with the pull-out tube assembly and causes the Hall sensor to output a second sensing signal through changes in the magnetic field. The solenoid valve module controls the water circuit opening and closing according to the first or second sensing signal. In addition, by setting the Hall sensor and the magnet that moves with the pull-out tube assembly at relative intervals, and simultaneously making the solenoid valve module electrically connected to both to respond to the sensing signals, the dual sensing mode can avoid the situation of false triggering or sensing failure caused by the influence of ambient light, object color or obstruction angle of a single sensing mode, thus improving sensing stability and realizing the linkage between the pull-out action and sensing control, which can adapt to complex usage scenarios.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224649219U_ABST
    Figure CN224649219U_ABST
Patent Text Reader

Abstract

A double induction mode pull-out faucet, comprising a faucet body, a pull-out pipe assembly, an infrared sensor, a Hall sensor, a magnet, a control valve group and a solenoid valve module. By setting the infrared sensor and the Hall sensor to cooperate with the magnet to form a double induction mode, the infrared sensor outputs a first induction signal, the magnet moves with the pull-out pipe assembly to make the Hall sensor output a second induction signal, and the solenoid valve module controls the water circuit on-off according to any signal. In addition, by independently setting the solenoid valve module outside the faucet body, the control valve group realizes manual and induction mode switching. Due to the adoption of the double induction mode, the problem of single induction being affected by the environment is avoided, the induction stability is improved, the pull-out and induction linkage is realized, and the internal layout is optimized, facilitating maintenance.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of kitchen and bathroom faucet technology, specifically to a pull-out faucet with dual sensing modes. Background Technology

[0002] Pull-out sensor faucets are widely used in kitchens and bathrooms due to their flexible water outlet position adjustable via a pull-out tube and contactless water dispensing control. Their core functionality lies in controlling the water flow through a sensor and solenoid valve, while the movement of the pull-out tube expands their usability, enhancing both ease of use and hygiene.

[0003] In the prior art, taking the Chinese utility model patent application number 202222169958.6 (authorization announcement number CN218118769U) entitled "A Pull-out Sensor Faucet" as an example, its structure includes a faucet body, a water circuit control component (including an integrated valve seat, a solenoid valve, and a mixing valve core), a pull-out pipe, a pull-out head, and a sensor. This patent, by installing the integrated valve seat and solenoid valve inside the main pipe of the faucet body and securing them with screws along the connection line of the branch pipe, avoids the solenoid valve passing through the branch pipe, thereby reducing the size of the branch pipe, lowering material costs, and optimizing the compactness of the faucet body, thus possessing certain structural advantages. However, this pull-out sensor faucet still has the following unresolved technical problems:

[0004] 1. Single sensing mode: It relies on a single sensor, such as an infrared sensor, to control water dispensing. The hand must be moved to the sensing position for the system to detect the water. However, during the pull-out operation, the hand is usually not at the sensing position, so the other hand must be used to keep the water in the sensing position, which is very inconvenient. In addition, its sensing effect is easily affected by ambient light (such as strong light, backlight), object color or obstruction angle, which poses a risk of false triggering or sensor failure, making it difficult to adapt to complex usage scenarios.

[0005] 2. Insufficient coordination between pull-out action and sensor control: The function of the pull-out tube is limited to adjusting the water outlet position. Its pull-out or reset action is not linked with the sensor control, and it cannot realize the mechanical sensing logic of "pull out water and reset to turn off water". It needs to rely entirely on external sensors to trigger, resulting in insufficient operation continuity.

[0006] 3. The solenoid valve is built into the main pipe of the faucet body, sharing limited space with components such as the integrated valve seat and pull-out tube, resulting in a compact internal layout. When the pull-out tube is frequently pulled out and moved, it is prone to friction or interference with the solenoid valve, affecting the smoothness of the pull-out process. At the same time, the built-in solenoid valve concentrates the water circuit and electrical components inside the main pipe, which not only increases the difficulty of maintenance but may also affect the stability of the solenoid valve due to changes in water temperature and humidity.

[0007] Therefore, in view of the shortcomings of existing pull-out sensor faucets in terms of sensing stability, coordination between pulling and sensing, and rationality of internal layout, there is an urgent need to develop a pull-out sensor faucet with a more reliable sensing mode, closer linkage between pulling action and sensing control, and more optimized internal structural layout. Utility Model Content

[0008] The first technical problem to be solved by this utility model is to provide a pull-out faucet with a dual-sensor mode to improve sensing stability and realize the linkage between pull-out action and sensing control, in view of the above-mentioned technical status.

[0009] The second technical problem to be solved by this utility model is to provide a pull-out faucet with a dual-sensor mode that reduces the faucet size and interference with internal components by using an external solenoid valve assembly, in view of the above-mentioned technical status.

[0010] The technical solution adopted by this utility model to solve the first technical problem is: the dual-sensor pull-out faucet, including...

[0011] The main body of the dragon head has an internal pull-out channel that extends vertically.

[0012] The pull-out tube assembly is movably inserted into the pull-out channel of the faucet body and can move along its axial direction;

[0013] An infrared sensor is used to sense external objects and output a first sensing signal.

[0014] A Hall sensor is fixed to the inner wall of the pull-out channel of the faucet body;

[0015] A magnet is fixed to the pull-out tube assembly and moves synchronously with it. It is positioned opposite to the Hall sensor so that the Hall sensor outputs a second sensing signal through changes in the magnetic field.

[0016] A control valve assembly includes a valve seat and a valve core. The valve seat is provided with an inlet and an outlet. The valve core is used to control the opening and closing of the water flow channel and can realize the switching of different water circuit modes.

[0017] The solenoid valve module is electrically connected to both the infrared sensor and the Hall sensor. Its inlet end is connected to the outlet of the valve seat, and its outlet end is connected to the pull-out pipe assembly. It can control the water flow based on the first or second sensing signal.

[0018] To achieve a continuous water path for the pull-out tube assembly and facilitate the installation and fixation of the magnet, while ensuring smoothness of the pull-out process, preferably, the pull-out tube assembly includes a first pull-out tube, a second pull-out tube, and a hose connector. The first pull-out tube and the second pull-out tube are respectively connected to the two ends of the hose connector, forming a continuous water path. The end of the second pull-out tube away from the hose connector is connected to the water outlet of the solenoid valve module, and the end of the first pull-out tube away from the hose connector is the water outlet. The magnet is disposed on the hose connector and located between the first pull-out tube and the second pull-out tube.

[0019] To enhance the connection stability between the hose connector and the pull tube, and to ensure the magnet is securely installed and positioned to prevent displacement during the pulling process, the hose connector preferably includes a first connecting part, a second connecting part, and an annular flange. The first connecting part and the second connecting part are respectively connected to the first pull tube and the second pull tube, and the annular flange is formed between the first connecting part and the second connecting part. The magnet is annular and is fitted around the outer periphery of the first connecting part and abuts against the annular flange and the water inlet end of the first pull tube.

[0020] To achieve the integrated installation of the infrared sensor and the Hall sensor, ensure the precise alignment of the Hall sensor and the magnet, and ensure that the infrared sensor can effectively sense external objects, preferably, the faucet body is provided with a sensor bracket, and both the infrared sensor and the Hall sensor are mounted on the sensor bracket; the sensing end of the Hall sensor and the magnet maintain a preset distance from each other when the pull-out tube assembly is in the reset state, and are always on the corresponding sensing path during the pull-out process; the sensing end of the infrared sensor is connected to the external environment through a light-transmitting protective component, which is embedded in the outer surface of the faucet body.

[0021] The technical solution adopted by this utility model to solve the second technical problem is as follows: the solenoid valve module is independently set outside the faucet body, its water inlet end is connected to the water outlet of the valve seat through the first water pipe, and its water outlet end is connected to the water inlet end of the pull-out pipe assembly through the second water pipe.

[0022] To effectively protect the solenoid valve module and provide flexible power supply options for easy battery replacement and to meet power requirements in different scenarios, the system preferably includes an openable housing. The solenoid valve module is housed within the housing, which has a battery compartment. The solenoid valve module is configured to be powered by a battery in the battery compartment or by an external power cord.

[0023] To achieve mixed control of hot and cold water and provide both manual and sensor-based water outlet modes to meet different usage habits and scenario requirements, preferably, the control valve assembly is a dual-mode control valve assembly. The inlet of the valve seat includes a cold water inlet and a hot water inlet, and the outlet of the valve seat includes a manual mode outlet and a sensor-based mode outlet. By operating the valve core, the manual mode outlet or the sensor-based mode outlet can be selectively opened.

[0024] To achieve independent control and water flow convergence in manual and sensor modes, and to ensure smooth water flow to the pull-out pipe assembly in both modes, preferably, the solenoid valve module includes a solenoid valve and a water inlet connected in parallel; the inlet of the water inlet is connected to the manual mode outlet of the valve seat, and the inlet of the solenoid valve is connected to the sensor mode outlet of the valve seat; the water inlet and the outlet of the solenoid valve converge to a common outlet, which is connected to the inlet of the pull-out pipe assembly.

[0025] To optimize the connection structure between the valve core and the valve seat, facilitate the installation and operation of the valve core, and rationally arrange the positions of the inlet and outlet to improve the overall structural compactness, preferably, the valve core is horizontally built into the faucet body, and the side of the valve seat is provided with a mating surface that connects with and communicates with the valve core. The cold water inlet, hot water inlet, manual mode outlet, and sensor mode outlet are all located at the bottom of the valve seat.

[0026] To guide the movement of the pull-out tube assembly, ensure the smoothness of its pull-out and reset actions, and guarantee the precise alignment of the magnet and the Hall sensor after reset, thereby improving sensing reliability, preferably, the valve seat has a movable groove for the pull-out tube assembly to move; when the pull-out tube assembly resets to a preset position along the length direction of the movable groove, the magnet and the Hall sensor are adjacent to each other and arranged opposite each other.

[0027] Compared with the prior art, the advantages of this utility model are as follows: by setting up an infrared sensor and a Hall sensor in combination with a magnet to form a dual sensing mode, the infrared sensor can sense external objects and output a first sensing signal. The magnet moves synchronously with the pull-out tube assembly and causes the Hall sensor to output a second sensing signal through changes in the magnetic field. The solenoid valve module controls the water circuit opening and closing according to the first or second sensing signal. In addition, by setting the Hall sensor and the magnet that moves with the pull-out tube assembly at relative intervals, and simultaneously making the solenoid valve module electrically connected to both to respond to the sensing signals, the dual sensing mode can avoid the situation of false triggering or sensing failure caused by the influence of ambient light, object color or obstruction angle of a single sensing mode, thus improving sensing stability and realizing the linkage between the pull-out action and sensing control, which can adapt to complex usage scenarios. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0029] Figure 2 This is a schematic diagram of the decomposed state structure of this embodiment;

[0030] Figure 3 This is a cross-sectional view of the structure in this embodiment (the pull-out tube assembly is in the reset state).

[0031] Figure 4 This is a cross-sectional view of the structure in this embodiment (the pull-out tube assembly is in the pull-out state);

[0032] Figure 5 This is a three-dimensional structural diagram of the pull-out tube assembly in this embodiment;

[0033] Figure 6 This is a three-dimensional structural schematic diagram of the valve seat in this embodiment;

[0034] Figure 7 This is a three-dimensional structural diagram of the valve seat from another angle in this embodiment;

[0035] Figure 8 This is a three-dimensional structural diagram of the hose connector in this embodiment;

[0036] Figure 9 This is a schematic diagram showing the exploded state structure of the sensor bracket, infrared sensor, and Hall sensor in this embodiment.

[0037] Figure 10 This is a schematic diagram of the internal structure of the solenoid valve module 7 in this embodiment (the arrows indicate the direction of water flow). Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] Figures 1-10 The figure shown is the preferred embodiment of this utility model.

[0040] The dual-sensor pull-out faucet in this embodiment mainly includes a faucet body 1, a pull-out tube assembly 2, an infrared sensor 3, a Hall sensor 4, a magnet 5, a control valve assembly 6, a solenoid valve module 7, and a housing 8. It aims to solve the problems of existing pull-out sensor faucets having a single sensing mode that is easily affected by environmental interference, insufficient coordination between the pull-out action and sensing control, and a compact internal layout. By combining infrared and Hall sensors, linking the pull-out action with the sensing, and designing an external solenoid valve module, it achieves stable sensing, smooth operation, and optimized structure.

[0041] The structure and connection relationship of each component in this embodiment are as follows:

[0042] Leading Body 1: Reference Figures 1 to 3 As shown, the faucet body 1 has a hollow internal structure and can be made of brass or stainless steel. An internal pull-out channel 1a extends vertically, allowing the pull-out tube assembly 2 to pass through. Its outer wall has a sensor bracket 1b, which is fixed with screws and used to install the infrared sensor 3 and the Hall sensor 4. The wiring terminals of the infrared sensor 3 and the Hall sensor 4 are sealed with waterproof adhesive. The connecting wires are water-resistant insulated wires, such as PVC insulated wires, and the portion passing through the faucet body 1 is fitted with a waterproof silicone sleeve. A rubber waterproof sealing ring is provided at the interface between the wires and the solenoid valve module 7 to prevent moisture intrusion. The faucet body 1 also has a cavity inside for the horizontal installation of the valve core 6b, ensuring convenient operation of the valve core 6b.

[0043] Pull-out tube assembly 2: Reference Figures 2 to 5 , Figure 8 As shown, the pull-out tube assembly 2 can be freely pulled out or reset along the axial direction of the pull-out channel 1a of the faucet body 1. It includes a first pull-out tube 2a, a second pull-out tube 2b, and a hose connector 2c, which form a continuous water path. The first pull-out tube 2a is a flexible metal corrugated pipe, with the end away from the hose connector 2c being the water outlet. The end of the second pull-out tube 2b away from the hose connector 2c is connected to the water outlet of the solenoid valve module 7. The hose connector 2c includes a first connecting part 2c1, a second connecting part 2c2, and an annular flange 2c3. The first connecting part 2c1 is threaded to the water inlet of the first pull-out tube 2a, the second connecting part 2c2 is engaged with the water outlet of the second pull-out tube 2b, and the annular flange 2c3 is integrally formed between the first connecting part 2c1 and the second connecting part 2c2, serving as a limiting element.

[0044] Magnet 5: Reference Figures 2 to 5 As shown, the magnet 5 is ring-shaped and is sleeved on the outer periphery of the first connecting part 2c1 of the hose connector 2c, and abuts against the annular flange 2c3 and the water inlet end of the first pull tube 2a. It is fixed by the clamping force of the two and moves synchronously with the pull tube assembly 2.

[0045] Infrared sensor 3: Reference Figure 2 and Figure 8 As shown, the infrared sensor 3 is embedded in the sensor bracket 1b. The sensing end of the infrared sensor 3 is connected to the external environment through a light-transmitting protective component. The light-transmitting protective component can be embedded in the outer surface of the faucet body. This light-transmitting protective component can be made of glass or transparent acrylic, etc.

[0046] Hall sensor 4: Reference Figure 2 and Figure 8As shown, the Hall sensor 4 is fixed on the sensor bracket 1b, located next to the infrared sensor 3, with its sensing end facing the magnet 5. When the pull-out tube assembly 2 is in the reset state, the Hall sensor 4 and the magnet 5 maintain a preset distance; during the pull-out process, the two are always on the corresponding sensing path, and the second sensing signal can be output through the change in the magnetic field generated by the movement of the magnet 5. The signal is also transmitted to the solenoid valve module 7 through the wire.

[0047] Control valve assembly 6: Reference Figures 2 to 4 , Figure 6 and Figure 7 The control valve assembly 6 is a dual-mode control valve assembly, including a valve seat 6a and a valve core 6b. The valve seat 6a is fixed inside the faucet body 1, and its side has a mating surface 6a5 that mates with and communicates with the valve core 6b. An annular silicone sealing ring is provided between the mating surface 6a5 and the valve core 6b. The sealing ring is embedded in the sealing groove of the valve seat 6a to ensure reliable water circuit sealing when the valve core 6a rotates or switches, preventing cross-contamination or leakage.

[0048] The bottom is equipped with a cold water inlet 6a1, a hot water inlet 6a2, a manual mode outlet 6a3, and a sensor mode outlet 6a4. The cold water inlet 6a1 and the hot water inlet 6a2 are connected to external cold and hot water pipes, respectively. The manual mode outlet 6a3 and the sensor mode outlet 6a4 are connected to the two inlet ends of the solenoid valve module 7 through the first water pipe 7a. The valve seat 6a is also provided with a movable groove 6a6 for the pull tube assembly 2 to move, guiding the pull tube assembly 2 to move up and down along the movable groove 6a6. The valve core 6b is a ceramic valve core, which is horizontally built into the cavity of the faucet body 1, and the end is connected to the control handle. By rotating the handle, the manual mode outlet 6a3 or the sensor mode outlet 6a4 can be selectively turned on. It is necessary to further explain here how to selectively open the manual mode outlet 6a3 or the sensor mode outlet 6a4 by controlling the valve core. This is existing technology and will not be elaborated here. The core principle is as follows: the valve core has a rotatable moving valve plate and a fixed fixed valve plate. The moving valve plate has a connecting hole, and the fixed valve plate has two corresponding water distribution holes that connect to the manual mode outlet and the sensor mode outlet, respectively. When the control handle is rotated, the moving valve plate can be selectively aligned with one of the water distribution holes to achieve the switching between manual mode and sensor mode. At the same time, the relative rotation angle between the moving valve plate and the fixed valve plate can adjust the hot and cold water mixing ratio, thereby controlling the outlet water temperature. For details, please refer to the patent document with application publication number CN15681569A.

[0049] Solenoid valve module 7: Reference Figure 1 , Figure 2 and Figure 10As shown, the solenoid valve module 7 is independently installed outside the faucet body 1, including a solenoid valve 7c and a water connector 7d connected in parallel, with their outlets converging at a common outlet. The inlet of the solenoid valve 7c is connected to the sensing mode outlet 6a4 of the valve seat 6a via a first water pipe 7a, and the inlet of the water connector 7d is also connected to the manual mode outlet 6a3 of the valve seat 6a via another first water pipe 7a. The common outlet of the solenoid valve 7c is connected to the inlet of the second pull-out pipe 2b of the pull-out pipe assembly 2 via a second water pipe 7b. The solenoid valve 7c of the solenoid valve module 7 is electrically connected to the infrared sensor 3 and the Hall sensor 4, and can receive and respond to the sensing signals from both.

[0050] Box 8: Reference Figure 1 and Figure 2 As shown, the box 8 is an openable plastic box that is fixed to the wall or cabinet by a buckle. The solenoid valve module 7 is placed inside the box 8. The side of the box 8 has a battery compartment 8a with a replaceable lithium battery inside. It also has a reserved interface for an external power cord. The solenoid valve module 7 can be powered by a battery or an external power source.

[0051] The working principle of the dual-sensor pull-out faucet in this embodiment is as follows:

[0052] 1. Dual-sensor control logic: When infrared sensor 3 detects an external object (such as a hand approaching), it outputs a first sensing signal. Upon receiving the signal, solenoid valve module 7 controls solenoid valve 7c to open. Water flows through the sensing mode outlet 6a3, the first water pipe 7a, solenoid valve 7c, and the second water pipe 7b into the pull-out tube assembly 2, finally flowing out from the outlet of the first pull-out tube 2a. When the pull-out tube assembly 2 is pulled outwards, magnet 5 moves with it, and the change in magnetic field triggers Hall sensor 4 to output a second sensing signal. Solenoid valve 7c also opens, achieving "pull-out water". When the pull-out tube assembly 2 returns to a preset position (magnet 5 and Hall sensor 4 are adjacent and opposite), Hall sensor 4 stops outputting a signal, and solenoid valve 7c closes, achieving "reset-off water". The dual-sensor modes can back each other up, avoiding single-sensor failure. When the infrared sensor and Hall sensor output sensing signals simultaneously, the Hall sensor signal (pull-out action) responds first to ensure the continuity of the pull-out operation. After the pull-out tube assembly returns to its original position, the dual-signal parallel response mode is restored.

[0053] 2. Mode switching and water transmission: The control handle of the rotary valve core 6b can switch the water transmission mode: When the manual mode outlet 6a3 is turned on, the water flows directly into the pull-out pipe assembly 2 through the water inlet connector 7d, and water can be continuously discharged without the need for a sensing signal; when the sensing mode outlet 6a4 is turned on, the water transmission is controlled by the solenoid valve 7c, and water is only triggered by the sensing signal.

[0054] The water transmission path is as follows: external cold / hot water → cold water inlet 6a1 / hot water inlet 6a2 of valve seat 6a → valve core 6b (adjusting water temperature and flow) → manual mode outlet 6a3 / induction mode outlet 6a4 of valve seat 6a → first water pipe 7a → solenoid valve module 7 (water inlet 7d / inlet of solenoid valve 7c) → second water pipe 7b → second pull-out pipe 2b → hose connector 2c → first pull-out pipe 2a → outlet.

[0055] 3. Structural Synergy: The movable groove 6a6 of the valve seat 6a ensures smooth movement of the pull-out tube assembly 2 and avoids displacement; the sensor bracket 1b ensures the installation accuracy of the infrared sensor 3 and the Hall sensor 4 and ensures reliable sensing; the housing 8 protects the solenoid valve module 7 from moisture; the battery compartment 8a and external power supply design improve the flexibility of use; and the external solenoid valve module 7 avoids friction interference with the pull-out tube assembly 2, extends its service life, and reduces the size of the faucet.

[0056] It should be noted that in the description of this embodiment, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A pull-out faucet with dual sensing modes, characterized in that: include The main body of the faucet (1) has an internal pull-out channel (1a) that extends vertically; The pull-out tube assembly (2) is movably inserted into the pull-out channel (1a) of the faucet body (1) and can move along its axial direction; Infrared sensor (3) is used to sense external objects and output a first sensing signal; Hall sensor (4) is fixed to the inner wall of the pull-out channel (1a) of the faucet body (1); A magnet (5) is fixed to the pull-out tube assembly (2) and moves synchronously with it. It is positioned opposite to the Hall sensor (4) so ​​that the Hall sensor (4) outputs a second sensing signal through changes in the magnetic field. The control valve assembly (6) includes a valve seat (6a) and a valve core (6b). The valve seat (6a) is provided with an inlet and an outlet. The valve core (6b) is used to control the opening and closing of the water flow channel and can realize the switching of different water circuit modes. The solenoid valve module (7) is electrically connected to the infrared sensor (3) and the Hall sensor (4). Its inlet end is connected to the outlet of the valve seat (6a), and its outlet end is connected to the pull-out pipe assembly (2). It can control the water circuit opening and closing according to the first sensing signal or the second sensing signal.

2. The pull-out faucet with dual sensing modes according to claim 1, characterized in that: The pull-out tube assembly (2) includes a first pull-out tube (2a), a second pull-out tube (2b), and a hose connector (2c). The first pull-out tube (2a) and the second pull-out tube (2b) are respectively connected to the two ends of the hose connector (2c) and form a continuous water channel. The end of the second pull tube (2b) away from the hose connector (2c) is connected to the water outlet of the solenoid valve module (7), and the end of the first pull tube (2a) away from the hose connector (2c) is the water outlet; The magnet (5) is disposed on the hose connector (2c) and located between the first pull tube (2a) and the second pull tube (2b).

3. The pull-out faucet with dual sensing modes according to claim 2, characterized in that: The hose connector (2c) includes a first connecting part (2c1), a second connecting part (2c2), and an annular flange (2c3). The first connecting part (2c1) and the second connecting part (2c2) are respectively connected to the first pull tube (2a) and the second pull tube (2b). The annular flange (2c3) is formed between the first connecting part (2c1) and the second connecting part (2c2). The magnet (5) is ring-shaped and is sleeved on the outer periphery of the first connecting part (2c1) and abuts between the annular flange (2c3) and the water inlet end of the first pull tube (2a).

4. The pull-out faucet with dual sensing modes according to claim 1, characterized in that: The faucet body (1) is provided with a sensor bracket (1b), and the infrared sensor (3) and the Hall sensor (4) are both provided on the sensor bracket (1b); The sensing end of the Hall sensor (4) and the magnet (5) maintain a preset distance from each other when the pull tube assembly (2) is in the reset state, and are always on the corresponding sensing path during the pulling process; The sensing end of the infrared sensor (3) is connected to the external environment through a light-transmitting protective component, which is embedded in the outer surface of the faucet body (1).

5. The pull-out faucet with dual sensing modes according to any one of claims 1 to 4, characterized in that: The solenoid valve module (7) is independently installed outside the faucet body (1). Its inlet end is connected to the outlet of the valve seat (6a) through the first water pipe (7a), and its outlet end is connected to the inlet end of the pull-out pipe assembly (2) through the second water pipe (7b).

6. The pull-out faucet with dual sensing modes according to claim 5, characterized in that: It also includes an openable housing (8), the solenoid valve module (7) is located inside the housing (8), the housing (8) is provided with a battery compartment (8a), and the solenoid valve module (7) is configured to be powered by a battery in the battery compartment (8a) or an external power cord.

7. The pull-out faucet with dual sensing modes according to claim 1, characterized in that: The control valve assembly (6) is a dual-mode control valve assembly. The inlet of the valve seat (6a) includes a cold water inlet (6a1) and a hot water inlet (6a2). The outlet of the valve seat (6a) includes a manual mode outlet (6a3) and a sensor mode outlet (6a4). By operating the valve core (6b), the manual mode outlet (6a3) or the sensor mode outlet (6a4) can be selectively opened.

8. The pull-out faucet with dual sensing modes according to claim 7, characterized in that: The solenoid valve module (7) includes a solenoid valve (7c) and a water inlet connector (7d) arranged in parallel; The water inlet of the water connector (7d) is connected to the manual mode outlet (6a3) of the valve seat (6a), and the water inlet of the solenoid valve (7c) is connected to the induction mode outlet (6a4) of the valve seat (6a). The water inlet connector (7d) and the outlet of the solenoid valve (7c) converge at a common outlet, which is connected to the inlet of the pull-out pipe assembly (2).

9. The pull-out faucet with dual sensing modes according to claim 7, characterized in that: The valve core (6b) is horizontally embedded in the faucet body (1). The side of the valve seat (6a) is provided with a mating surface (6a5) that connects with and communicates with the valve core (6b). The cold water inlet (6a1), hot water inlet (6a2), manual mode outlet (6a3), and sensor mode outlet (6a4) are all located at the bottom of the valve seat (6a).

10. The pull-out faucet with dual sensing modes according to claim 1, characterized in that: The valve seat (6a) is provided with a movable groove (6a6) for the pull tube assembly (2) to move; when the pull tube assembly (2) is reset to a preset position along the length direction of the movable groove (6a6), the magnet (5) and the Hall sensor (4) are adjacent to each other and arranged opposite to each other.

Citation Information

Patent Citations

  • Drawing induction faucet

    CN218118769U