A kind of induction faucet valve core

Abstract

The present invention discloses an induction faucet valve core, comprising a shell, wherein a water passage and a solenoid valve are arranged in sequence in the shell, wherein a control board is installed on the solenoid valve through a mounting portion, and the control board is electrically connected to the solenoid valve; the control board is provided with a sensor terminal and a battery terminal; a water inlet interface and a water outlet interface are provided at one end of the shell; the input end and the output end of the water passage are arranged adjacent to the water inlet interface and the water outlet interface respectively; the input end and the output end of the solenoid valve are connected to the middle of the water passage. The induction faucet valve core provided by the present invention is small in size and can be compatible with faucets of various styles.

Description

Technical Field

[0001] The invention relates to the field of faucets, and in particular to a valve core of an induction faucet. Background Art

[0002] Faucets are commonly used water-drawing tools in people's daily lives. Conventional faucets are generally operated manually. With the continuous emergence of electronic sensing technology, contactless automatic faucets have become a better choice. At present, considering the hygiene problem, by setting a sensor switch, contactless water drawing from the faucet can be achieved, which can effectively prevent the faucet from being contaminated by dirt and germs.

[0003] Traditional induction faucets have the following disadvantages: existing induction faucets are basically designed for public places, and require electrical sockets to be reserved in advance or control boxes to be embedded in the wall before decoration. They are also bulky and not easily compatible with various styles of household faucets. The control box is basically placed at the bottom of the table, and can only adjust the temperature when operated on the table. It cannot be manually turned off on the table when replacing batteries or when the sensor fails. It cannot be applied to most popular faucet styles on the market and has poor versatility. Summary of the invention

[0004] The purpose of the present invention is to provide an induction faucet valve core which is small in size and compatible with faucets of various styles.

[0005] To achieve the above-mentioned purpose, the present invention provides an induction faucet valve core, including a shell, wherein a water passage and a solenoid valve are arranged in sequence in the shell, and the solenoid valve is installed with a control board through a mounting portion, and the control board is electrically connected to the solenoid valve; the control board is provided with a sensor terminal and a battery terminal; a water inlet interface and a water outlet interface are provided at one end of the shell; the input end and the output end of the water passage are arranged adjacent to the water inlet interface and the water outlet interface respectively; the input end and the output end of the solenoid valve are connected to the middle of the water passage.

[0006] As a further improvement of the present invention, a stator and a movable plate which are adjacently arranged and relatively rotatable are provided in the shell; the water passage includes a cold water inlet, a hot water inlet and a mixed water outlet arranged on the stator, and also includes a first water through hole and a second water through hole arranged on the movable plate; the first water through hole is arranged between the cold water inlet, the hot water inlet and the input end of the solenoid valve; the second water through hole is arranged between the output end of the solenoid valve and the mixed water outlet; the cold water inlet and the hot water inlet both correspond to the water inlet interface of the shell, and the mixed water outlet corresponds to the water outlet interface of the shell.

[0007] As a further improvement of the present invention, the input end of the solenoid valve is the third water through hole, and the output end is the fourth water through hole; the actuator of the solenoid valve is movably arranged between the third water through hole and the fourth water through hole.

[0008] As a further improvement of the present invention, the solenoid valve includes a valve housing, and an annular boss is provided in the inner cavity of the valve housing; the third water hole and the fourth water hole are respectively located on the outer side and the inner side of the annular boss; the actuator of the solenoid valve includes a diaphragm, and the diaphragm is adapted to the top of the annular boss.

[0009] As a further improvement of the present invention, a rotating seat is provided on one side of the solenoid valve; the stator and the outer shell are relatively stationary, and the movable plate, the solenoid valve, the mounting part and the rotating seat are fixedly connected in sequence; the rotating seat passes through the outer shell; the rotating seat is cylindrical and is sleeved on the outside of the electromagnetic coil group of the solenoid valve.

[0010] As a further improvement of the present invention, the installation portion is a box body, and the box body is provided with a sensor wire passing hole; the side wall and / or the end of the shell is provided with a wire passing hollow portion.

[0011] As a further improvement of the present invention, a wire passing tube is provided on the shell near the water inlet interface and the water outlet interface; the wire passing tube passes through the side wall of the shell; and a first clearance groove adapted to the wire passing tube is provided on one side of the stator.

[0012] As a further improvement of the present invention, a wire-passing groove is provided on the outer wall of the shell of the solenoid valve; the outer wall of the shell of the solenoid valve is matched with the inner wall of the shell in size.

[0013] Beneficial Effects

[0014] Compared with the prior art, the advantages of the induction faucet valve core of the present invention are:

[0015] 1. The water passage, the solenoid valve and the mounting part are arranged in sequence along the center line of the shell, which can greatly reduce the shell cross-sectional size of the induction faucet valve core. It is small in size and can be compatible with various styles of faucets.

[0016] 2. The fixed plate, the moving plate, the solenoid valve and the rotating seat are arranged on the outer shell in sequence, with reasonable layout and small size. After the valve core is installed on the faucet, the external sensor and the solenoid valve are electrically connected to the control panel. After the sensor senses the manual action, the solenoid valve opens or closes, thereby realizing the opening and closing of the valve core. By operating the rotating seat, the relative rotation angle between the moving plate and the fixed plate can be adjusted, thereby adjusting the overlap ratio of the cold water inlet and the hot water inlet on the fixed plate and the first water hole on the moving plate, and adjusting the mixing ratio and flow rate of cold water and hot water. When it is necessary to replace the battery or charge the lithium battery, the solenoid valve does not work at this time. The rotating seat is operated to stagger the first water hole with the cold water inlet and the hot water inlet, so that the faucet can be easily closed to avoid waste caused by leakage.

[0017] 3. The control board is arranged between the solenoid valve and the rotating seat and inside the housing, which can not only protect the control board but also further miniaturize the valve core. The data line connected to the sensor passes through the housing and can be arranged at will.

[0018] 4. A wire-passing hollow portion and a wire-passing tube are provided on the side wall and / or the end of the shell, so that the data cable connected to the sensor can pass through from different positions, which reduces the difficulty of wiring and is more convenient for processing various styles of induction faucets.

[0019] 5. A wire-passing groove is provided on the outer wall of the solenoid valve shell, and the outer wall of the solenoid valve shell is matched with the inner wall of the shell, which is conducive to the miniaturization of the shell.

[0020] The present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, which are used to illustrate embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 One of the three-dimensional images of the valve core of the induction faucet;

[0023] Figure 2 The second is a three-dimensional diagram of the valve core of the induction faucet;

[0024] Figure 3 One of the three-dimensional images of the induction faucet valve core after removing the outer shell;

[0025] Figure 4 The second stereoscopic image of the induction faucet valve core after removing the outer shell;

[0026] Figure 5 This is an exploded view of the valve core of the induction faucet;

[0027] Figure 6 is a bottom view of the fixed piece;

[0028] Figure 7 This is a bottom view of the moving piece;

[0029] Figure 8 One of the three-dimensional diagrams of the solenoid valve;

[0030] Fig. 9 The second is a three-dimensional diagram of the solenoid valve;

[0031] Fig.10 A partial cross-sectional view of the solenoid valve. DETAILED DESCRIPTION

[0032] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0033] Example

[0034] The specific embodiments of the present invention are as follows Figures 1 to 10 As shown, an induction faucet valve core includes a housing 1, in which a water passage, a solenoid valve 5 and a mounting portion 7 are arranged in sequence along the center line. The solenoid valve 5 is mounted with a control board through the mounting portion 7, and the control board is electrically connected to the solenoid valve 5. The control board is provided with a sensor terminal and a battery terminal. A water inlet interface and a water outlet interface are provided at one end of the housing 1. The input end and the output end of the water passage are arranged adjacent to the water inlet interface and the water outlet interface respectively. The input end and the output end of the solenoid valve 5 are connected to the middle of the water passage.

[0035] The housing 1 includes a housing cylinder 11 and a base 12 that are interlocked. The inner cavity cross section of the housing 1 is circular. A first positioning protrusion 121 is provided on the base 12, and a first positioning groove 111 that cooperates with the first positioning protrusion 121 is provided on the opening edge of the housing cylinder 11. A second positioning protrusion 122 is provided on the base 12, and a second positioning groove 34 that cooperates with the second positioning protrusion 122 is provided on the edge of the stator 3, so that the stator 3 and the base 12 are relatively stationary. The water inlet and outlet interfaces of the housing 1 are arranged on the base 12.

[0036] The housing 1 is provided with a stator 3 and a rotor 4 which are arranged adjacently and can rotate relative to each other. The water passage includes a cold water inlet 31, a hot water inlet 32 ​​and a mixed water outlet 33 arranged on the stator 3, and also includes a first water hole 41 and a second water hole 42 arranged on the rotor 4. The first water hole 41 is arranged between the cold water inlet 31, the hot water inlet 32 ​​and the input end of the solenoid valve 5. The second water hole 42 is arranged between the output end of the solenoid valve 5 and the mixed water outlet 33. The cold water inlet 31 and the hot water inlet 32 ​​both correspond to the water inlet interface of the housing 1, and the mixed water outlet 33 corresponds to the water outlet interface of the housing 1. The water inlet interface on the housing 1 includes a cold water interface and a hot water interface, and the cold water interface, the hot water interface and the water outlet interface correspond to the cold water inlet 31, the hot water inlet 32 ​​and the mixed water outlet 33 on the stator 3, respectively, and a sealing ring 8 is arranged on the cold water interface, the hot water interface and the water outlet interface.

[0037] The second water through hole 42 includes a main through hole and an arc groove 421 connected on one side thereof, ensuring that when the first water through hole 41 of the movable plate 4 rotates to be connected to one of the cold water inlet 31 and the hot water inlet 32 ​​or to be connected to all three states at the same time, at least one of the main through hole and the arc groove 421 of the second water through hole 42 corresponds to the mixed water outlet 33, that is, the solenoid valve 5 can normally discharge cold water, hot water or warm water after being opened.

[0038] The input end of the electromagnetic valve 5 is the third water hole 53, and the output end is the fourth water hole 54. The actuator of the electromagnetic valve 5 is movably arranged between the third water hole 53 and the fourth water hole 54.

[0039] The solenoid valve 5 comprises a valve housing 55, and an annular boss 56 is provided in the inner cavity of the valve housing 55. The third water hole 53 and the fourth water hole 54 are respectively located on the outer side and the inner side of the annular boss 56. The actuator of the solenoid valve 5 comprises a diaphragm 57, and the diaphragm 57 is matched with the top of the annular boss 56. A third positioning convex block 52 is provided on the valve housing 55 of the solenoid valve 5, and a third positioning groove 43 matched with the third positioning convex block 52 is provided at the edge of the moving plate 4, so that the moving plate 4 can rotate together with the solenoid valve 5 and the rotating seat 6.

[0040] A rotating seat 6 is provided on one side of the electromagnetic valve 5. The fixed plate 3 is relatively stationary with respect to the housing 1, and the movable plate 4, the electromagnetic valve 5, the mounting portion 7 and the rotating seat 6 are fixedly connected in sequence. The rotating seat 6 passes through the housing 1. The rotating seat 6 is cylindrical and is sleeved on the outside of the electromagnetic coil group 9 of the electromagnetic valve 5.

[0041] The mounting portion 7 is a box body, and a sensor wire hole 73 is provided on the box body. The box body includes a first box body 71 and a second box body 72 that are interlocked, and the control board is located in the box body. The first box body 71 is formed integrally with the rotating seat 6. The first box body 71 is provided with a screw, which passes through the second box body 72 and is threadedly connected to the solenoid valve 5. In addition, the mounting portion 7 can also adopt other forms of brackets instead of a box body. A wire hollow portion 13 is provided on the side wall and / or end of the housing 1. The battery terminal of the control board is electrically connected to the battery through an electric wire; the sensor terminal of the control board is connected to the sensor through a signal line.

[0042] A wire passing pipe 2 is provided near the water inlet and outlet interfaces on the housing 1. The wire passing pipe 2 penetrates the wall of the housing 1. A first clearance groove 35 adapted to the wire passing pipe 2 is provided on one side of the stator 3. A wire passing groove 51 is provided on the outer wall of the valve housing 55 of the solenoid valve 5. The outer wall size of the valve housing 55 is adapted to the inner wall size of the housing 1, that is, the two can be clearance-matched or in contact, and can ensure that the two can rotate relative to each other.

[0043] The signal line of the sensor can pass through the sensor wire hole 73 and the wire hollow part 13 of the housing 1 in sequence, or pass through the sensor wire hole 73 and then pass through the wire groove 51 to pass through the housing 1 from the wire tube 2. The wire connected to the battery can also pass through the sensor wire hole 73 and pass through the wire hollow part 13 or the wire tube 2 as needed.

[0044] The induction faucet valve core can be installed in the outer tube of the faucet, wherein the rotating seat 6 can be fixedly connected to the rotating adjustment handle on the faucet. When in use, when the solenoid valve 5 is not in operation, the diaphragm 57 contacts the top of the annular boss 56, and the rotating seat 6 drives the movable plate 4 to rotate until the first water hole 41 is completely offset from the cold water inlet 31 and the hot water inlet 32 ​​of the fixed plate 3, and at this time, neither cold water nor hot water enters the solenoid valve 5. When the sensor located outside (not shown in the figure) senses the manual action, the control panel receives the signal and makes the solenoid valve 5 work, the diaphragm 57 and the top of the annular boss 56 are separated from each other, and the movable plate 4 is driven to rotate through the rotating seat 6, so that the first water hole 41 of the movable plate 4 overlaps with at least one of the cold water inlet 31 and the hot water inlet 32 ​​of the fixed plate 3, so that cold water, hot water or warm water can flow out of the water outlet interface of the housing 1.

[0045] In addition to the above embodiments, the stator 3 may also not adopt the method of cold water and hot water entering separately, but only set one water inlet and one water outlet, which correspond to the first water hole 41 and the second water hole 42 of the movable plate 4 respectively. The first water hole 41 is arranged between the water inlet of the stator 3 and the third water hole 53 of the electromagnetic valve 5, and the second water hole 42 is arranged between the fourth water hole 54 of the electromagnetic valve 5 and the water outlet of the stator 3. The water inlet and the water outlet of the stator 3 correspond to the water inlet interface and the water outlet interface of the housing 1 respectively. The movable plate 4 rotates until the first water hole 41 overlaps with the water inlet of the stator 3 and the second water hole 42 of the movable plate 4 overlaps with the water outlet of the stator 3. At this time, the electromagnetic valve 5 is opened and the water passage is conducted. Rotate the movable plate 4 until the first water hole 41 is offset from the water inlet of the fixed plate 3, and the second water hole 42 of the movable plate 4 is offset from the water outlet of the fixed plate 3. At this time, even if the solenoid valve 5 is opened, the water passage is still in a disconnected state, which is convenient for battery replacement without water leakage.

[0046] The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. An induction faucet valve core, comprising a housing (1), characterized in that: The housing (1) is provided with a water passage, a solenoid valve (5) and a mounting portion (7) arranged in sequence; the solenoid valve (5) is provided with a control board via the mounting portion (7); the control board is electrically connected to the solenoid valve (5); the control board is provided with a sensor terminal and a battery terminal; one end of the housing (1) is provided with a water inlet interface and a water outlet interface; the input end and the output end of the water passage are arranged adjacent to the water inlet interface and the water outlet interface respectively; The input end and the output end of the electromagnetic valve (5) are connected to the middle of the water passage; the housing (1) is provided with a stator (3) and a moving plate (4) arranged adjacently and relatively rotatable; the water passage comprises a water inlet and a water outlet arranged on the stator (3), and also comprises a first water passage hole (41) and a second water passage hole (42) arranged on the moving plate (4); the first water passage hole (41) is arranged between the water inlet of the stator (3) and the input end of the electromagnetic valve (5), and the second water passage hole (42) is arranged between the output end of the electromagnetic valve (5) and the water outlet of the stator (3); the water inlet and the water outlet of the stator (3) correspond to the water inlet interface and the water outlet interface of the housing (1) respectively. The second water passage hole (42) comprises a main through hole and an arc groove (421) connected on one side thereof, ensuring that when the first water passage hole (41) of the movable plate (4) is rotated to be connected to one of the cold water inlet (31) and the hot water inlet (32) or to be connected to all three states at the same time, at least one of the main through hole and the arc groove (421) of the second water passage hole (42) corresponds to the mixed water outlet (33); the movable plate (4) is rotated to the point where the first water passage hole (41) is staggered with the water inlet of the fixed plate (3) and the second water passage hole (42) of the movable plate (4) is staggered with the water outlet of the fixed plate (3), at which time, even if the solenoid valve (5) is opened, the water passage is still in a disconnected state.

2. The induction faucet valve core according to claim 1, characterized in that: The water inlet of the stator (3) comprises a cold water inlet (31) and a hot water inlet (32), and the water outlet of the stator (3) comprises a mixed water outlet (33); the first water passage hole (41) is arranged between the cold water inlet (31), the hot water inlet (32) and the input end of the solenoid valve (5); the cold water inlet (31) and the hot water inlet (32) both correspond to the water inlet interface of the housing (1).

3. The induction faucet valve core according to claim 2, characterized in that: The input end of the solenoid valve (5) is the third water passage hole (53), and the output end is the fourth water passage hole (54); the actuator of the solenoid valve (5) is movably arranged between the third water passage hole (53) and the fourth water passage hole (54).

4. The induction faucet valve core according to claim 3, characterized in that: The solenoid valve (5) comprises a valve housing (55), an annular boss (56) is provided in the inner cavity of the valve housing (55); the third water hole (53) and the fourth water hole (54) are respectively located on the outer side and the inner side of the annular boss (56); the actuator of the solenoid valve (5) comprises a diaphragm (57), and the diaphragm (57) is adapted to the top of the annular boss (56).

5. The induction faucet valve core according to claim 1, 2 or 4, characterized in that: A rotating seat (6) is provided on one side of the electromagnetic valve (5); the fixed plate (3) and the housing (1) are relatively stationary, and the movable plate (4), the electromagnetic valve (5), the mounting portion (7) and the rotating seat (6) are fixedly connected in sequence; the rotating seat (6) extends out of the housing (1); the rotating seat (6) is cylindrical and is sleeved on the outside of the electromagnetic coil group (9) of the electromagnetic valve (5).

6. The induction faucet valve core according to claim 1, 2 or 4, characterized in that: The mounting portion (7) is a box body, and a sensor wire hole (73) is provided on the box body; a wire hollow portion (13) is provided on the side wall and / or end of the housing (1).

7. The induction faucet valve core according to claim 1, 2 or 4, characterized in that: A wire passing tube (2) is provided on the outer shell (1) at a position close to the water inlet interface and the water outlet interface; the wire passing tube (2) penetrates the wall of the outer shell (1); and a first clearance groove (35) adapted to the wire passing tube (2) is provided on one side of the stator (3).

8. The induction faucet valve core according to claim 7, characterized in that: A wire-passing groove (51) is provided on the outer wall of the shell of the solenoid valve (5); the outer wall of the shell of the solenoid valve (5) is matched in size to the inner wall of the outer shell (1).

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