Fully automatic sensor faucet

Abstract

This utility model proposes a fully automatic sensor faucet, including a faucet housing. A detachable spout is installed inside the front end of the faucet housing, and a detachable sensor housing is installed at the front end of the spout. The sensor housing has a circuit board mounting slot with an opening at the top in the middle. A circuit board bracket is installed inside the mounting slot, and a circuit board is mounted on the bracket. A forward-facing sensor and a downward-facing sensor are electrically connected to the circuit board. The circuit board is covered by a shielding cover. A raised water-blocking ring is fixed to the bottom of the sensor housing, surrounding the downward-facing sensor. The water-blocking ring reduces the risk of the sensor housing accidentally triggering the downward-facing sensor due to water accumulation. This utility model features easy disassembly and installation of the spout and sensor housing, and simple maintenance. The water-blocking ring reduces the risk of the sensor housing accidentally triggering the downward-facing sensor due to water accumulation, resulting in better reliability. The use of dual sensors makes it suitable for different scenarios and offers better reliability than traditional single-sensor systems.

Description

Technical Field

[0001] This utility model relates to the field of faucet technology, and in particular to a fully automatic sensor faucet. Background Technology

[0002] Fully automatic sensor faucets work on the principle of infrared reflection. When a person's hand is placed within the infrared range of the faucet, the infrared rays emitted by the infrared emitter are reflected back to the infrared receiver due to the hand's obstruction. The signal is then processed by the microcomputer within the integrated circuit and sent to the pulse solenoid valve. Upon receiving the signal, the solenoid valve opens the valve core according to the specified instruction to control the water flow. When the person's hand leaves the infrared sensing range, the solenoid valve no longer receives a signal, and the valve core is reset by the internal spring to control the water flow to stop.

[0003] However, while the existing fully automatic sensor faucets generally work without problems, there are still some unreliable aspects and areas for improvement in the details. Utility Model Content

[0004] This utility model proposes a fully automatic sensor faucet, which solves the problems of insufficient reliability and room for improvement in the details of use of existing fully automatic sensor faucets.

[0005] The technical solution of this utility model is implemented as follows:

[0006] The fully automatic sensor faucet includes a faucet housing, a detachable spout installed inside the front of the faucet housing, a detachable sensor housing installed at the front of the spout, a circuit board mounting slot with an opening at the top in the middle of the sensor housing, a circuit board bracket installed in the circuit board mounting slot, a circuit board mounted on the circuit board bracket, a forward-facing sensor and a downward-facing sensor electrically connected to the circuit board, a shielding cover covering the circuit board, and a raised water-blocking ring fixed to the bottom of the sensor housing, the water-blocking ring surrounding the downward-facing sensor in the middle, the water-blocking ring can reduce the false triggering of the downward-facing sensor due to water accumulation in the sensor housing.

[0007] Preferably, the front end and the lower end of the faucet housing are both opening ends. The lower part of the front end of the faucet housing has a rearwardly extending limiting groove, which is used to limit and avoid the water outlet and the sensor box. The lower end of the faucet housing is fixed with a fixing seat.

[0008] Preferably, the fixing base has a screw hole, a screw rod is connected in the screw hole, an O-ring, a rubber gasket and a stainless steel gasket are sleeved on the screw rod, and a nut is also connected to the screw rod.

[0009] Preferably, the lower end of the water outlet is provided with a water outlet, and an aerator is connected to the water outlet. The aerator includes a sealing gasket, an aerator core, and an aerator seat.

[0010] Preferably, the lower part of the spout is fixed inside the front end of the faucet housing by screws; the rear end of the spout is a water inlet connector, a water inlet pipe is connected to the water inlet connector, the water inlet pipe is fixed to the water inlet connector by clamps, and the water inlet pipe extends from the lower end of the faucet housing.

[0011] Preferably, the front end of the water outlet is fixed with a buckle, and the rear end of the sensor box is provided with a slot that cooperates with the buckle.

[0012] Preferably, the circuit board bracket has a front opening corresponding to the front sensor and a lower opening corresponding to the lower sensor.

[0013] Preferably, the circuit board is electrically connected to a wire, the sensor housing has a wire hole, a wire hole sealing plug is provided on the wire hole, and the wire extends from the lower end of the faucet housing through the wire hole sealing plug.

[0014] Preferably, both the front sensor and the lower sensor are infrared sensors. The front sensor is used to release water when it detects a hand and to stop the water flow when it detects a hand again. The lower sensor is used to release water when it detects a hand and to stop the water flow when it does not detect a hand.

[0015] Preferably, the sensing box is an infrared-transparent PC box or an infrared-transparent ABS box.

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

[0017] 1. The spout of this utility model is detachably installed inside the front end of the faucet housing, facilitating disassembly and maintenance. The sensor box and spout are separate and detachable structures. The separate sensor box structure is simple, reducing defects in plastic parts caused by increased corners and uneven wall thickness, resulting in better surface quality. If the sensor box is scratched or corroded by acidic cleaning agents, the sensor box can be replaced separately without replacing the spout and aerator, reducing maintenance costs. The two are connected by clips and slots, making installation quick and maintenance simple. Since the sensor box and spout are separate structures, there is no need to consider the light transmittance and compressive strength of the sensor head lens material, so materials with better light transmittance and lower cost can be selected. The spout material can be selected with higher strength and better high and low temperature resistance.

[0018] 2. A raised water-retaining ring is fixed to the bottom of the sensor box. The water-retaining ring surrounds the lower sensor in the middle. The water-retaining ring can reduce the false triggering of the lower sensor due to water on the sensor box, thus improving reliability.

[0019] 3. It adopts dual sensors (front sensor and lower sensor), which is suitable for different scenarios and has better reliability than the traditional single sensor. Specifically, the water flows out when the front sensor detects a hand and stops when it detects a hand again, which is suitable for scenarios with long-term water flow. The water flows out when the lower sensor detects a hand and stops when it does not detect a hand, which is used for scenarios with short-term water flow. The front sensor has a higher priority than the lower sensor. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is the front view of the present invention;

[0022] Figure 2 This is a perspective view of the present utility model;

[0023] Figure 3 These are leaked images of this utility model;

[0024] Figure 4 This is a connection diagram of the water outlet and the sensor box in this utility model;

[0025] Figure 5 This is a perspective view of the water outlet nozzle in this utility model;

[0026] Figure 6 This is a perspective view of the sensor box in this utility model.

[0027] In the diagram: 1. Faucet housing; 2. Spout; 3. Sensor housing; 4. Circuit board bracket; 5. Circuit board; 6. Shielding cover; 7. Water baffle; 8. Limiting groove; 9. Fixing base; 10. Screw; 11. O-ring seal; 12. Rubber gasket; 13. Stainless steel gasket; 14. Nut; 15. Aerator; 16. Sealing gasket; 17. Aerator core; 18. Aerator seat; 19. Screw; 20. Inlet connector; 21. Inlet pipe; 22. Clamp; 23. Buckle; 24. Slot; 25. Wire; 26. Wire hole; 27. Wire hole sealing plug. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1-6 The fully automatic sensor faucet includes a faucet housing 1, a detachable spout 2 installed in the front end of the faucet housing 1, a detachable sensor housing 3 installed in the front end of the spout 2, a circuit board mounting slot with an opening at the top in the middle of the sensor housing 3, a circuit board bracket 4 installed in the circuit board mounting slot, a circuit board 5 installed on the circuit board bracket 4, a forward-facing front sensor (not shown) and a downward-facing lower sensor (not shown) electrically connected to the circuit board 5, a shielding cover 6 covering the circuit board 5, and a raised water-blocking ring 7 fixed to the bottom of the sensor housing 3, which surrounds the lower sensor in the middle and reduces the risk of the lower sensor being accidentally triggered due to water accumulation in the sensor housing 3.

[0030] As a preferred embodiment, the front end and the lower end of the faucet housing 1 are both opening ends. The lower part of the front end of the faucet housing is provided with a rearwardly extending limiting groove 8, which is used to limit and avoid the water outlet 2 and the sensor box 3. The lower end of the faucet housing 1 is fixed with a fixing seat 9.

[0031] As a preferred embodiment, the fixing base 9 has a screw hole, and a screw 10 is connected inside the screw hole. The screw 10 is fitted with an O-ring 11, a rubber gasket 12, and a stainless steel gasket 13. A nut 14 is also connected to the screw 10. This facilitates installation.

[0032] As a preferred embodiment, the lower end of the water outlet 2 is provided with a water outlet, and an aerator 15 is connected to the water outlet. The aerator 15 includes a sealing gasket 16, an aerator core 17, and an aerator seat 18.

[0033] As a preferred embodiment, the lower part of the spout 2 is fixed inside the front end of the faucet housing 1 by screws 19; the rear end of the spout 2 is a water inlet connector 20, and a water inlet pipe 21 is connected to the water inlet connector 20. The water inlet pipe 21 is fixed to the water inlet connector 20 by clamps 22, and the water inlet pipe 21 extends from the lower end of the faucet housing 1.

[0034] As a preferred embodiment, the front end of the water outlet 2 is fixed with a buckle 23, and the rear end of the sensor box 2 is provided with a slot 24 that cooperates with the buckle.

[0035] As a preferred embodiment, the water-blocking ring 7 is circular, elliptical, or rectangular.

[0036] As a preferred embodiment, the circuit board bracket 4 has a front opening corresponding to the front sensor and a lower opening corresponding to the lower sensor.

[0037] As a preferred embodiment, the circuit board 5 is electrically connected to a wire 25, and the sensing box 3 has a wire hole 26. A wire hole sealing plug 27 is provided on the wire hole 26. The wire 25 extends from the lower end of the faucet housing 1 through the wire hole sealing plug 27, which provides good sealing and ensures safety and reliability.

[0038] As a preferred embodiment, both the front sensor and the lower sensor are infrared sensors. The front sensor is used to release water when it detects a hand and to stop the water flow when it detects a hand again. The lower sensor is used to release water when it detects a hand and to stop the water flow when it does not detect a hand.

[0039] As a preferred embodiment, the sensing housing 1 is an infrared-transparent PC housing or an infrared-transparent ABS housing, which will not affect the sensing of the front sensor and the lower sensor.

[0040] The spout 2 of this utility model is detachably installed inside the front end of the faucet housing 1, facilitating disassembly and maintenance. The sensor housing 3 and the spout 2 are separate and detachable structures. The separate sensor housing 3 has a simple structure, reducing defects in plastic parts caused by increased corners and uneven wall thickness, and achieving better surface quality. If the sensor housing 3 is scratched or corroded by acidic cleaning agents, it can be replaced separately without replacing the spout 2 and aerator, reducing maintenance costs. The two are connected by clips and slots, making installation quick and maintenance simple. Since the sensor housing 3 and the spout 2 are separate structures, there is no need to consider the light transmittance and compressive strength of the sensor head lens material. Therefore, materials with better light transmittance and lower cost can be selected. The spout 2 material can be selected with higher strength and better high and low temperature resistance.

[0041] A raised water-blocking ring 7 is fixed to the bottom of the sensor box 3. The water-blocking ring 7 surrounds the lower sensor above and can reduce the false triggering of the lower sensor due to water on the sensor box.

[0042] Employing dual sensors (front and lower), it is suitable for various scenarios and offers better reliability than traditional single-sensor systems. Specifically, the front sensor dispenses water when it detects a hand and cuts off the water flow when it detects another hand, suitable for scenarios requiring prolonged water flow. The lower sensor dispenses water when it detects a hand and cuts off the water flow when it does not, suitable for scenarios requiring short-term water flow. The front sensor has higher priority than the lower sensor.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully automatic sensor faucet, characterized in that: The device includes a faucet housing, with a detachable spout installed inside the front end of the faucet housing. A detachable sensor housing is installed at the front end of the spout. The sensor housing has a circuit board mounting slot with an opening at the top in the middle. A circuit board bracket is installed inside the circuit board mounting slot, and a circuit board is installed on the circuit board bracket. A forward-facing sensor and a downward-facing sensor are electrically connected to the circuit board. The circuit board is covered by a shield. A raised water-blocking ring is fixed to the bottom of the sensor housing, which surrounds the downward-facing sensor in the middle. The water-blocking ring can reduce the false triggering of the downward-facing sensor due to water accumulation in the sensor housing.

2. The fully automatic sensor faucet as described in claim 1, characterized in that: The front and lower ends of the faucet housing are both opening ends. The lower part of the front end of the faucet housing has a rearwardly extending limiting groove, which is used to limit and avoid the water outlet and the sensor box. The lower end of the faucet housing is fixed with a fixing base.

3. The fully automatic sensor faucet as described in claim 2, characterized in that: The mounting base has a screw hole, a screw rod is connected inside the screw hole, and an O-ring, a rubber gasket and a stainless steel gasket are sleeved on the screw rod. A nut is also connected to the screw rod.

4. The fully automatic sensor faucet as described in claim 1, characterized in that: The lower end of the water outlet is provided with a water outlet, and an aerator is connected to the water outlet. The aerator includes a sealing gasket, an aerator core, and an aerator seat.

5. The fully automatic sensor faucet as described in claim 1, characterized in that: The lower part of the spout is fixed inside the front end of the faucet housing by screws; the rear end of the spout is a water inlet connector, on which a water inlet pipe is connected. The water inlet pipe is fixed to the water inlet connector by clamps and extends from the lower end of the faucet housing.

6. The fully automatic sensor faucet as described in claim 1, characterized in that: The front end of the water outlet is fixed with a buckle, and the rear end of the sensor box is provided with a slot that cooperates with the buckle.

7. The fully automatic sensor faucet as described in claim 1, characterized in that: The circuit board bracket has a front opening corresponding to the front sensor and a lower opening corresponding to the lower sensor.

8. The fully automatic sensor faucet as described in claim 1, characterized in that: The circuit board is electrically connected to wires, and the sensor box has wire holes with wire hole sealing plugs. The wires extend from the lower end of the faucet housing through the wire hole sealing plugs.

9. The fully automatic sensor faucet as described in claim 1, characterized in that: Both the front sensor and the lower sensor are infrared sensors. The front sensor is used to release water when it detects a hand and to stop the water flow when it detects a hand again. The lower sensor is used to release water when it detects a hand and to stop the water flow when it does not detect a hand.

10. The fully automatic sensor faucet as described in claim 1, characterized in that: The sensing box is an infrared-transparent PC box or an infrared-transparent ABS box.

Images