Sensing faucet

Abstract

The utility model discloses an induction faucet which comprises a faucet body, an electromagnetic valve switch module, a water mixing module and an electric eye induction module, the electromagnetic valve switch module, the water mixing module and the electric eye induction module are all arranged in the faucet body, and the electric eye induction module is electrically connected with the electromagnetic valve switch module; the water outlet end of the water mixing module is connected with the water inlet end of the electromagnetic valve switch module, and the water outlet end of the electromagnetic valve switch module is connected with a water outlet of the faucet body; the water mixing module comprises a water mixing valve body, a water mixing valve element and a clamping spring, the water mixing valve body is provided with a valve element cavity, and the water mixing valve element is arranged in the valve element cavity; the water mixing valve body is further provided with a clamping ring hole communicated with the valve element cavity, the water mixing valve element is further provided with a clamping ring groove, and the clamping spring can stretch into the clamping ring groove from the clamping ring hole, so that the water mixing valve element is axially fixed relative to the water mixing valve body. By the adoption of the faucet, the automatic water outlet sensing and water temperature adjusting functions of the faucet can be achieved, disassembly and assembly are convenient, a certain module can be replaced independently when breaking down, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to a faucet, in particular to an induction faucet. Background Art

[0002] The existing induction faucets include induction elements, switch elements, temperature control elements, etc. to realize the functions of automatic induction of water flow and temperature control of water flow. Each element is connected through corresponding pipelines, and a large number of screws or threaded connections are required between different elements, resulting in complex assembly and high production costs.

[0003] In addition, for some induction faucets with temperature control adjustment, the temperature control valve core is completely wrapped by the temperature control valve body. After the temperature control valve core is installed in the temperature control valve body, an end cover is required for fixation, which is cumbersome to install and also increases the assembly cost. Summary of the Utility Model

[0004] In order to solve the defects of the prior art, the utility model provides an induction faucet, which can realize the automatic induction of water flow of the faucet, and is convenient for disassembly and assembly. When a certain module fails, it can be replaced separately, reducing the maintenance cost; the mixing valve core is reliably positioned relative to the mixing valve body through a snap ring, and no additional fixing parts such as end covers are required, reducing the number of components.

[0005] In order to solve the above technical problems, the utility model provides an induction faucet, which includes a faucet body, a solenoid valve switch module, a mixing module and an electro-optical induction module. Among them, the solenoid valve switch module, the mixing module and the electro-optical induction module are all arranged in the faucet body, and the electro-optical induction module is electrically connected to the solenoid valve switch module; the water outlet end of the mixing module is connected to the water inlet end of the solenoid valve switch module, and the water outlet end of the solenoid valve switch module is connected to the water outlet of the faucet body; the mixing module includes a mixing valve body, a mixing valve core and a snap ring. The mixing valve body is provided with a valve core cavity, and the mixing valve core is arranged in the valve core cavity; the mixing valve body is further provided with a snap ring hole communicating with the valve core cavity, and the mixing valve core is further provided with a snap ring groove. The snap ring can extend into the snap ring groove from the snap ring hole, so that the mixing valve core is axially fixed relative to the mixing valve body.

[0006] As an improvement of the above solution, the bottom of the solenoid valve switch module is provided with a first connecting portion extending outwards, and the top of the mixing valve body is provided with a first water outlet hole; the first connecting portion can extend into the first water outlet hole, and a first sealing ring is arranged on the outer surface of the first connecting portion.

[0007] As an improvement to the above solution, it further includes a water outlet module, and the water outlet module includes a front positioning member, a water outlet pipe, and a bracket; an installation ring is provided at the water outlet end of the faucet body, and an installation post is provided above the solenoid valve switch module. The front positioning member is connected to the front end of the water outlet pipe. The front positioning member is provided with a claw, and by inserting the claw into the installation ring, the front positioning member can be fixed at the water outlet end of the faucet body; both sides of the bracket have connecting convex rods, and a C-shaped bayonet is in the center. The installation post is provided with a connecting hole, and the connecting convex rod can extend into the connecting hole to fix the claw on the faucet body; the lower end of the water outlet pipe is fixed in the C-shaped bayonet.

[0008] As an improvement to the above solution, the solenoid valve switch module includes a solenoid valve and a switch valve, and the solenoid valve is fixedly connected to the switch valve by bolts.

[0009] As an improvement to the above solution, the electric eye induction module includes an induction module, an energy storage capacitor, a power connection terminal, and a solenoid valve switch module connection terminal; the induction module is used to detect whether there is an object at a predetermined position in front. The power connection terminal, the energy storage capacitor, and the induction module are electrically connected in sequence. The energy storage capacitor is used to provide electric energy for a short time when power is off, the power connection terminal is used to connect to a power source, and the solenoid valve switch module connection terminal is connected to the induction module for electrically connecting to the solenoid valve switch module.

[0010] As an improvement to the above solution, an induction installation hole is provided on the side of the faucet body, and part of the induction module is located in the induction installation hole; a limiting groove is provided on the outer side of the mixing module, and the induction module is arranged in the limiting groove.

[0011] As an improvement to the above solution, a water hammer prevention device is provided inside the mixing module.

[0012] As an improvement to the above solution, it further includes a locking module, and the locking module includes a connecting ring with an external thread, and an internal thread matching the external thread is provided in the installation cavity at the lower part of the faucet body.

[0013] As an improvement to the above solution, a cold water inlet and a hot water inlet are provided at the bottom of the mixing module, and one-way valves are provided in both the cold water inlet and the hot water inlet.

[0014] Implementing the present utility model has the following beneficial effects:

[0015] With the above structure, the main functional modules of the induction faucet, namely the solenoid valve switch module, the water mixing module, and the electric eye induction module, are independently connected and installed, enabling the automatic induction water outlet and water temperature adjustment functions of the faucet. Moreover, the disassembly and assembly are convenient. If a certain module fails, it can be replaced separately, reducing the maintenance cost. The water mixing valve body is also provided with a snap ring hole communicating with the valve core cavity, and the water mixing valve core is also provided with a snap ring groove. The snap spring can extend from the snap ring hole into the snap ring groove, axially fixing the water mixing valve core relative to the water mixing valve body. The above structure can reliably position the water mixing valve core and the water mixing valve body, eliminating the need for additional fixing parts such as end covers, reducing the number of components, and also facilitating the reduction of the volume of the water mixing valve body. In addition, the snap spring can prevent the water pressure from pressing the water mixing valve core against the inner wall of the faucet body, ensuring a consistent rotating feel of the faucet's adjustment handle under different water pressures. Brief Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of an embodiment of an induction faucet of the present invention;

[0017] Figure 2 is a partial cross-sectional view of an embodiment of an induction faucet of the present invention;

[0018] Figure 3 is a cross-sectional view of an embodiment of an induction faucet of the present invention in another direction;

[0019] Figure 4 is Figure 3 the cross-sectional view of part A of

[0020] Figure 5 is a schematic structural diagram of the electric eye induction module of an embodiment of the present invention;

[0021] Figure 6 is a schematic internal structure diagram of an embodiment of an induction faucet of the present invention. Detailed Description of the Embodiment

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside, and outside that appear or will appear in the present invention are only based on the drawings of the present invention, and they do not specifically limit the present invention.

[0023] As Figures 1 - 3As shown in the figure, a specific embodiment of the utility model provides an induction faucet, which includes a faucet body 1, a solenoid valve switch module 2, a water mixing module 3, and an electric eye induction module 4. Among them, the solenoid valve switch module 2, the water mixing module 3, and the electric eye induction module 4 are all arranged in the faucet body 1, and the electric eye induction module 4 is electrically connected to the solenoid valve switch module 2; the water outlet end of the water mixing module 3 is connected to the water inlet end of the solenoid valve switch module 2, and the water outlet end of the solenoid valve switch module 2 is connected to the water outlet of the faucet body 1; the water mixing module 3 includes a water mixing valve body 31, a water mixing valve core 32, and a snap ring 33. The water mixing valve body 31 is provided with a valve core cavity 311, and the water mixing valve core 32 is arranged in the valve core cavity 311; the water mixing valve body 31 is further provided with a snap ring hole 312 communicating with the valve core cavity 311, and the water mixing valve core 32 is further provided with a snap ring groove 321. The snap ring 33 can extend from the snap ring hole 312 into the snap ring groove 321, so that the water mixing valve core 32 is axially fixed relative to the water mixing valve body 31.

[0024] With the above structure, the main functional modules of the induction faucet are composed of the solenoid valve switch module 2, the water mixing module 3, and the electric eye induction module 4 and are independently connected and installed, which can realize the automatic induction water outlet and water temperature adjustment functions of the faucet, and the disassembly and assembly are convenient. If a certain module fails, it can be replaced separately, reducing the maintenance cost. The water mixing valve body 31 is further provided with a snap ring hole 312 communicating with the valve core cavity 311, and the water mixing valve core 32 is further provided with a snap ring groove 321. The snap ring 33 can extend from the snap ring hole 312 into the snap ring groove 321, so that the water mixing valve core 32 is axially fixed relative to the water mixing valve body 31. The above structure can reliably position the water mixing valve core 32 and the water mixing valve body 31 without additional fixing parts such as end covers, reducing the number of components and also being beneficial to reducing the volume of the water mixing valve body 31. In addition, the snap ring 33 can prevent the water pressure from pressing the water mixing valve core 32 against the inner wall of the faucet body 1, ensuring the uniform rotation feel of the adjustment handle of the faucet under different water pressures.

[0025] As Figure 3 shown, in order to save the connecting pipeline between the solenoid valve switch module 2 and the water mixing module 3, the bottom of the solenoid valve switch module 2 is provided with a first connecting portion 21 extending outward, and the top of the water mixing valve body 31 is provided with a first water outlet hole 313; the first connecting portion 21 can extend into the first water outlet hole 313, and a first sealing ring 22 is arranged on the outer surface of the first connecting portion 21. The first sealing ring 22 ensures the sealing performance between the first connecting portion 21 and the first water outlet hole 313. During installation, only need to first install the solenoid valve switch module 2 into the faucet body 1, then install the water mixing module 3 from the bottom of the faucet body 1, and press the first water outlet hole 313 into the first connecting portion 21.

[0026] Preferably, as Figure 4 andFigure 6 As shown in the figure, the induction faucet further includes a water outlet module 5, and the water outlet module 5 includes a front-end positioning member 51, a water outlet pipe 52, and a bracket 53; an installation ring 11 is provided at the water outlet end of the faucet body 1, and an installation post 12 is provided above the solenoid valve switch module 2. The front-end positioning member 51 is connected to the front end of the water outlet pipe 52. The front-end positioning member 51 is provided with a claw 511. By inserting the claw 511 into the installation ring 11, the front-end positioning member 51 can be fixed at the water outlet end of the faucet body 1; both sides of the bracket 53 have connecting convex rods 531, and a C-shaped bayonet 532 is provided in the center. The installation post 12 is provided with a connecting hole 121. The connecting convex rod 531 can extend into the connecting hole 121 to fix the claw 511 on the faucet body 1; the lower end of the water outlet pipe 52 is fixed in the C-shaped bayonet 532. With the above structure, the water outlet pipe 52 can be fixed in the middle position of the inner cavity of the faucet body 1 by the bracket 53. When the water outlet pipe 52 needs to be removed during later maintenance, the water outlet pipe 52 can be pulled out from the C-shaped bayonet 532, and the disassembly and assembly are convenient.

[0027] Preferably, the solenoid valve switch module 2 includes a solenoid valve 23 and a switching valve 24, and the solenoid valve 23 is fixedly connected to the switching valve 24 by a bolt 25. The solenoid valve 23 drives the valve core to move through electromagnetic force, driving the switching valve 24 to open or close to connect or disconnect the water path of the faucet.

[0028] As Figure 5 shown in the figure, in order to enable the electronic components in the faucet to obtain short-term power supply when suddenly powered off, so that the solenoid valve switch module 2 has enough time to close the water path. The electric eye induction module 4 includes an induction module 41, an energy storage capacitor 42, a power connection terminal 43, and a solenoid valve switch module connection terminal 44; the induction module 41 is used to detect whether there is an object at a predetermined position in front. The power connection terminal 43, the energy storage capacitor 42, and the induction module 41 are electrically connected in sequence. The energy storage capacitor 42 is used to provide electrical energy for a short time when powered off. The power connection terminal 43 is used to connect to the power supply. The solenoid valve switch module connection terminal 44 is connected to the induction module 41 for electrically connecting to the solenoid valve switch module 2. When the faucet is in the open state and suddenly powered off, the energy storage capacitor 42 can provide electrical energy for a short time, enabling the solenoid valve switch module 2 to close the water path before power off, preventing the faucet from continuously opening after power off and wasting water resources.

[0029] In addition, an induction mounting hole 13 is provided on the side of the faucet body 1, and a part of the induction module 41 is located in the induction mounting hole 13; a limiting groove 34 is provided on the outer side surface of the water mixing module 3, and the induction module 41 is arranged in the limiting groove 34. The induction module 41 is pressed against the faucet body 1 through the limiting groove 34. The induction module 41 itself does not need to be provided with a limiting structure, which simplifies the structure of the induction module 41 and is also beneficial to later maintenance.

[0030] Preferably, a water hammer prevention device 35 is provided in the water mixing module 3.

[0031] It should be noted that the water hammer prevention device 35 includes a spring 351, a buffer chamber 352 and a buffer piston 353. The spring 351 and the buffer piston 353 are arranged in the buffer chamber 352. The buffer chamber 352 is communicated with the first water outlet hole 313 of the water mixing module 3. When the electromagnetic valve switch module 2 is opened or closed, the water flow near the first water outlet hole 313 will generate vibration. At this time, the buffer piston 353 can absorb the above vibration energy to prevent noise generation.

[0032] In addition, this induction faucet may further include a locking module. The locking module includes a connecting ring 6 with an external thread. An internal thread 14 matching the external thread is provided in the installation cavity at the lower part of the faucet body 1. The locking module can be connected to the bottom of the faucet body 1 to press the water mixing module 3 tightly in the faucet body 1. A cold water inlet 36 and a hot water inlet 37 are provided at the bottom of the water mixing module 3. Check valves 38 are provided in both the cold water inlet 36 and the hot water inlet 37 to prevent the cold and hot pipes from cross-flowing due to excessive water pressure difference, resulting in chaos of the cold and hot in the pipeline system and water source pollution.

[0033] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. An induction faucet, characterized in that: It includes faucet body, solenoid valve switch module, water mixing module and electric eye sensor module. Wherein, the solenoid valve switch module, the water mixing module and the electric eye sensor module are all arranged in the faucet body, and the electric eye sensor module is electrically connected to the solenoid valve switch module; The water outlet end of the water mixing module is connected to the water inlet end of the solenoid valve switch module, and the water outlet end of the solenoid valve switch module is connected to the water outlet of the faucet body; The water mixing module comprises a water mixing valve body, a water mixing valve core and a retaining spring, the water mixing valve body is provided with a valve core cavity, and the water mixing valve core is arranged in the valve core cavity; The water mixing valve body is also provided with a snap ring hole connected to the valve core cavity, and the water mixing valve core is also provided with a snap ring groove. The snap ring can extend from the snap ring hole into the snap ring groove, so that the water mixing valve core is axially fixed relative to the water mixing valve body.

2. The induction faucet according to claim 1, characterized in that: The bottom of the solenoid valve switch module is provided with a first connecting portion extending outward, and the top of the water mixing valve body is provided with a first water outlet; The first connection portion can extend into the first water outlet hole, and a first sealing ring is provided on the outer surface of the first connection portion.

3. The induction faucet according to claim 2, characterized in that: It also includes a water outlet module, which includes a front end positioning member, a water outlet pipe and a bracket; The water outlet end of the faucet body is provided with a mounting ring, and a mounting column is provided above the solenoid valve switch module. The front end positioning member is connected to the front end of the water outlet pipe, and the front end positioning member is provided with a claw, which extends into the mounting ring through the claw to fix the front end positioning member at the water outlet end of the faucet body; The bracket has connecting protrusions on both sides and a C-shaped bayonet in the center. The mounting column is provided with a connecting hole, and the connecting protrusion can extend into the connecting hole to fix the claw on the faucet body; The lower end of the water outlet pipe is fixed in the C-shaped bayonet.

4. The induction faucet according to claim 1, characterized in that: The solenoid valve switch module comprises a solenoid valve and a switch valve, and the solenoid valve is connected and fixed to the switch valve by bolts.

5. The induction faucet according to claim 1, characterized in that: The electric eye sensing module includes a sensing module, an energy storage capacitor, a power connection end and a solenoid valve switch module connection end; the sensing module is used to detect whether there is an object at a predetermined position in front, the power connection end, the energy storage capacitor and the sensing module are electrically connected in sequence, the energy storage capacitor is used to provide electrical energy when the power is off, the power connection end is used to connect to the power supply, and the solenoid valve switch module connection end is connected to the sensing module and is used to be electrically connected to the solenoid valve switch module.

6. The induction faucet according to claim 5, characterized in that: A sensing installation hole is provided on the side of the faucet body, and the sensing module is partially located in the sensing installation hole; a limiting groove is provided on the outer side of the water mixing module, and the sensing module is arranged in the limiting groove.

7. The induction faucet according to claim 1, characterized in that: The water mixing module is provided with a water hammer prevention device.

8. The induction faucet according to claim 1, characterized in that: It also includes a locking module, which includes a connecting ring with an external thread, and an internal thread matching the external thread is provided in the installation cavity at the lower part of the faucet body.

9. The induction faucet according to claim 1, characterized in that: A cold water inlet and a hot water inlet are provided at the bottom of the water mixing module, and a one-way valve is provided in the cold water inlet and the hot water inlet.

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