CN115031052A

CN115031052A - Electromagnetic valve faucet

Info

Publication number: CN115031052A
Application number: CN202210705027.5A
Authority: CN
Inventors: 刘洋; 陈翔宇; 张凯; 苑旭冲; 张石
Original assignee: Beijing Andawell Aviation Equipment Co Ltd
Current assignee: Beijing Andawell Aviation Equipment Co Ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-09-09

Abstract

The application relates to a solenoid valve faucet, which comprises a faucet main body and a solenoid valve core group; the water tap main body comprises a water inlet part and a water outlet part, and the water outlet part is obliquely arranged towards the bottom end of the water inlet part; the electromagnetic valve core group comprises a valve seat, the valve seat is provided with a water inlet hole and a water flowing cavity, and a communication channel for communicating the water inlet hole and the water flowing cavity is arranged inside the valve seat; the water flowing cavity comprises a water outlet cavity and a water inlet cavity, and the communicating channel is communicated with one end of the water inlet cavity facing the water outlet cavity; a water outlet pipe is arranged in the water outlet part, and a water outlet channel is also arranged in the valve seat; the water outlet channel inclines towards the bottom end of the water outlet part; the electromagnetic valve core group also comprises a control component for controlling the disconnection or the communication between the water inlet cavity and the water outlet cavity, and the control component seals the water inlet cavity and the opening of the valve seat facing the top end of the water inlet part. This application has the effect of solving the inside deposit water that reduces current tap.

Description

Electromagnetic valve faucet

Technical Field

The application relates to the field of faucets, in particular to a solenoid valve faucet.

Background

Tap on the existing market is mostly mechanical type structure, mainly comprises tap case and tap main part, and tap case mainly has ceramic case, stainless steel case and rubber case three kinds, has decided tap's life, and tap main part is the brass material at present mostly.

Along with intelligent development, the induction type tap has appeared in the market, controls the break-make through the solenoid valve, but tap and solenoid valve are two parts mostly, and tap still adopts original mechanical structure, increases an infrared inductor, and the solenoid valve is adorned in a control box alone, and such structure component structure is complicated, and weight is great, is unsuitable to be used in the aviation field.

The existing induction type faucet has the problem of water storage, one section of water flow exists in the faucet and cannot be discharged completely, and the structure can possibly cause the faucet to be frozen and unusable in winter or under the low-temperature condition.

Disclosure of Invention

In order to reduce the problem of the inside water of current tap, this application provides a solenoid valve tap.

The application provides a solenoid valve tap adopts following technical scheme:

a kind of electromagnetic valve faucet, including faucet body and electromagnetic valve core group;

the faucet body comprises a water inlet part with a bottom end opening and a hollow interior and a water outlet part which is positioned on the side of the water inlet part and communicated with the interior of the water inlet part, and the water outlet part is obliquely arranged towards the bottom end direction of the water inlet part;

the electromagnetic valve core group is positioned inside the water inlet part;

the electromagnetic valve core group comprises a valve seat, a water inlet hole is formed in the end face, facing the bottom end of the water inlet part, of one end of the valve seat, a flowing water cavity is formed in the end face, facing the top end of the water inlet part, of the valve seat, and a communicating channel for communicating the water inlet hole with the flowing water cavity is formed in the valve seat;

the water flowing cavity comprises a water outlet cavity and a water inlet cavity which communicates the water outlet cavity with the end face of one end of the valve seat facing the top end of the water inlet part, and the communicating channel is communicated with one end of the water inlet cavity facing the water outlet cavity;

a water outlet pipe is arranged in the water outlet part, a water outlet channel is also arranged in the valve seat, one end of the water outlet channel is communicated with the water outlet cavity, and the other end of the water outlet channel is communicated with the water outlet pipe; the water outlet channel is inclined towards the bottom end of the water outlet part from one end communicated with the water outlet cavity to one end communicated with the side wall surface of the valve seat, which faces the water outlet part;

the electromagnetic valve core group also comprises a control component for controlling the disconnection or the communication between the water inlet cavity and the water outlet cavity, and the control component seals the water inlet cavity and the opening of the valve seat towards the top end of the water inlet part.

By adopting the technical scheme, when the electromagnetic faucet needs to be controlled to discharge water, the control assembly communicates the water inlet cavity with the water outlet cavity, and water entering from the water inlet hole finally flows into the water outlet pipe along the water inlet cavity and the water outlet cavity of the communicating channel and the water flowing cavity and is finally discharged. When water needs to stop flowing out, the control assembly disconnects the water inlet cavity and the water outlet cavity of the water flowing cavity, and the water outlet portion and the water outlet channel are both arranged in a downward inclined mode, so that water in the water outlet channel in situ flows out along the water outlet channel, and water stored in the electromagnetic valve faucet is reduced.

Optionally, the transverse cross-sectional area of the water inlet cavity is larger than that of the water outlet cavity, so that a step is formed between the water inlet cavity and the water outlet cavity; the communicating channel is communicated with the water inlet cavity and the communicating position is positioned on the side wall of one side of the step facing the water inlet cavity; the control assembly comprises a core column with a closed opening between a water inlet cavity and the end face of the top end of the valve seat facing the water inlet part, a mounting hole communicated with the water flowing cavity is formed in the core column, one end of the mounting hole is open, the other end of the mounting hole is closed, a movable iron core is connected to the inside of the mounting hole in a sliding mode, an elastic body is arranged between the movable iron core and the closed end of the mounting hole, an electromagnetic coil is arranged on the outside of the core column, the movable iron core moves towards the closed end of the mounting hole after the electromagnetic coil is electrified, the elastic body is in a compressed state at the moment, and the movable iron core and the step are in a separated state; after the electromagnetic coil is powered off, the movable iron core is abutted against the step, so that the water inlet cavity is disconnected from the water outlet cavity.

By adopting the technical scheme, when the electromagnetic coil is electrified, the movable iron core moves towards the closed end of the mounting hole, and the movable iron core is separated from the step so as to communicate the water inlet cavity with the water outlet cavity; when the electromagnetic coil is powered off, the movable iron core is abutted against the step under the action of the elastic piece, so that the water inlet cavity is disconnected from the water outlet cavity.

Optionally, an accommodating hole is formed in the end face, facing the mounting hole, of the movable iron core, the elastic body is located in the accommodating hole, and when the movable iron core is abutted to the closed end of the mounting hole, the elastic body is in a compressed state.

Through adopting above-mentioned technical scheme, the accommodation hole can restrict the elastomer, makes the compression direction of elastomer fixed, is difficult for taking place to twist.

Optionally, a pressure relief hole communicating the accommodating hole with the water flow cavity is formed in the movable iron core.

Through adopting above-mentioned technical scheme, the pressure release hole communicates mounting hole and flowing water chamber, when moving the iron core and removing to the blind end direction of mounting hole, moves the air between iron core and the mounting hole blind end and can enter into the flowing water chamber along the pressure release hole to do benefit to the removal of moving the iron core.

Optionally, the stem is including the main part post and be located the shutoff portion of the main part post towards the one end of disk seat, the shutoff portion will the opening in income water cavity is sealed, the transverse cross sectional area of shutoff portion is greater than the transverse cross sectional area of main part post greatly, solenoid is located the outside of main part post and with shutoff portion butt, the one end that shutoff portion was kept away from to the main part post is provided with the retaining ring, the retaining ring presss from both sides with shutoff portion and tightly fixes solenoid.

By adopting the technical scheme, the electromagnetic coil can be conveniently installed on the core column, and the electromagnetic coil can be quickly disassembled and assembled when the subsequent maintenance is needed.

Optionally, the water-saving device further comprises a three-way valve, one interface of the three-way valve is communicated with the water inlet hole, a water drain pipe is connected to one interface, the rest interfaces are used for being communicated with a water source, a pressure releasing hole which is communicated with the water flowing cavity and the inner cavity of the water inlet portion is formed in the core column, when the water flowing cavity and the water outlet cavity are disconnected by the movable iron core, the water flowing cavity and the inner cavity of the water inlet portion are communicated by the pressure releasing hole, and when the water flowing cavity and the water outlet cavity are communicated by the movable iron core, the pressure releasing hole is sealed by the movable iron core.

Through adopting above-mentioned technical scheme, the three-way valve is with drain pipe and inlet opening intercommunication, and the water that has intercommunication passageway and income water intracavity can be discharged through the drain pipe to can will have the inside water discharge of disk seat, further reduce the inside deposit water of solenoid valve tap.

Optionally, a pipe butt joint is installed at the water inlet.

Through adopting above-mentioned technical scheme, be convenient for dock inlet opening and water supply pipe.

Optionally, the top of the water inlet part is in an open shape, and the top of the water inlet part is provided with a cap for sealing the opening at the top of the water inlet part.

Through adopting above-mentioned technical scheme, the inside of the portion of intaking is installed to the solenoid valve core group of being convenient for.

Optionally, the inlet opening with leave the distance between the bottom of the portion of intaking, be provided with the access hole on the lateral wall of the portion of intaking, the access hole is located between the bottom of disk seat and the portion of intaking, it is used for keeping access hole confined closing cap to be provided with in the portion of intaking, the closing cap can be dismantled and be connected in intake on the portion.

Through adopting above-mentioned technical scheme, be convenient for overhaul the water inlet department of disk seat.

Optionally, the inside of the water inlet part is provided with a plurality of convex rings arranged along the axial direction of the water inlet part.

Through adopting above-mentioned technical scheme, increase the structural strength of portion of intaking, it is the difficult emergence of crooked of portion of intaking.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when water outlet is stopped, the control assembly disconnects the water inlet cavity and the water outlet cavity of the water flowing cavity, and water in the water outlet channel in situ flows out along the water outlet channel due to the fact that the water outlet part and the water outlet channel are arranged in a downward inclined mode, and water stored in the electromagnetic valve faucet is reduced;

2. the three-way valve is communicated with the water inlet hole through the water discharge pipe, and water in the communicating channel and the water inlet cavity can be discharged through the water discharge pipe, so that water in the valve seat can be discharged, and water stored in the electromagnetic valve faucet is further reduced.

Drawings

Fig. 1 is a schematic structural diagram of a solenoid valve faucet according to a first embodiment of the present application;

FIG. 2 is a cross-sectional view of a solenoid operated faucet according to a first embodiment of the present application;

fig. 3 is a schematic structural diagram of an electromagnetic valve core set of the electromagnetic valve faucet according to the first embodiment of the present application;

fig. 4 is a schematic structural view of a faucet body according to a first embodiment of the present application, with a cover removed from a service opening;

fig. 5 is a sectional view of a solenoid valve faucet according to a second embodiment of the present application;

fig. 6 is a schematic structural view of an electromagnetic valve core set of the electromagnetic valve faucet according to the second embodiment of the present application.

Description of reference numerals: 1. a faucet body; 11. a water inlet part; 111. a bottom end; 112. a top end; 113. an access hole; 114. sealing the cover; 115. a convex ring; 12. a water outlet part; 13. a cap; 2. an electromagnetic valve core group; 21. a valve seat; 211. a water inlet hole; 212. a running water cavity; 2121. a water inlet cavity; 2122. a water outlet cavity; 213. a communication channel; 214. a water outlet channel; 22. a stem; 221. a main body column; 222. a plugging section; 223. mounting holes; 224. releasing the pressure hole; 23. an electromagnetic coil; 24. a retainer ring; 25. a movable iron core; 251. an accommodation hole; 252. a pressure relief vent; 26. a compression spring; 3. a pipe butt joint; 4. a spray head; 5. a water outlet pipe; 6. a three-way valve; 7. and a water discharge pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses solenoid valve tap.

Referring to fig. 1 and 2, the solenoid valve faucet includes a faucet body 1 and a solenoid valve core assembly 2 installed inside the faucet body 1.

Referring to fig. 2, the faucet body 1 includes a hollow water inlet portion 11 having two cylindrical openings at both ends and a water outlet portion 12 located laterally to the water inlet portion 11 and communicating with the interior of the water inlet portion 11, and the water inlet portion 11 and the water outlet portion 12 are integrally cast. The faucet body 1 is made of aluminum alloy material and the surface is plated with chromium. One end of the two ends of the water inlet portion 11 is a bottom end 111 of the water inlet portion 11, and the other end is a top end 112. The outlet portion 12 is inclined toward the bottom 111 of the inlet portion 11. When the electromagnetic valve faucet is used, the water inlet part 11 is in a vertical state, the bottom end 111 of the water inlet part 11 is located below, and the top end 112 of the water inlet part is located above.

Referring to fig. 2 and 3, the electromagnetic valve core set 2 includes a valve seat 21 fixed inside the water inlet portion 11, and a space is left between the valve seat 21 and a side wall of the water inlet portion 11. A distance is left between the valve seat 21 and the end surface of the bottom end 111 of the water inlet part 11. A water inlet hole 211 is formed in the end face of the bottom end 111 of the valve seat 21 facing the water inlet portion 11, and the water inlet hole 211 is formed as a threaded hole. The water inlet hole 211 is connected with a pipeline butt joint 3 in a threaded manner, and the pipeline butt joint 3 adopts a pagoda joint.

The end surface of the valve seat 21 facing the top end 112 of the water inlet portion 11 is provided with a water flowing chamber 212, and the water flowing chamber 212 is communicated with the water inlet hole 211 through a communication passage 213. The water introduced into the water inlet hole 211 flows into the water flowing chamber 212 along the communication passage 213. The number of the communication passages 213 is 3 in the present embodiment, and is arranged in a circumferential array centering on the axis of the valve seat 21.

The flow chamber 212 includes a cylindrical inlet chamber 2121 and an outlet chamber 2122, wherein the outlet chamber 2122 communicates with an end surface of the valve seat 21 facing the top end 112 of the inlet portion 11, and the outlet chamber 2122 is located at a side of the inlet chamber 2121 facing away from the top end 112 of the inlet portion 11. The transverse cross-sectional area of the inlet 2121 is greater than the transverse cross-sectional area of the outlet 2122, such that the interface between the inlet 2121 and the outlet 2122 forms a step. The portion of the communication passage 213 communicating with the water flowing chamber 212 is located on a side wall surface of the step facing the water inlet chamber 2121.

A stem 22 having a cylindrical structure is provided at an end of the valve seat 21 facing the tip 112 of the water inlet portion 11, and the stem 22 and the valve seat 21 are coaxially provided. The stem 22 includes a main body pillar 221 and a stopper 222 located at one end of the main body pillar 221 facing the valve seat 21, and the main body pillar 221 and the stopper 222 are integrally formed. The diameter of the blocking portion 222 is larger than that of the main body column 221. The main body post 221 has a smaller diameter than the inlet chamber 2121. An internal thread is formed on the wall of the water inlet cavity 2121, an external thread adapted to the internal thread on the wall of the water inlet cavity 2121 is formed on the outer surface of the blocking portion 222, and the blocking portion 222 is screwed into the water inlet cavity 2121 to close the opening of the water inlet cavity 2121 far from the water outlet cavity 2122. The stopper 222 is screwed to the valve seat 21 and sealed by a seal ring.

An electromagnetic coil 23 is attached to the outside of the main body column 221. One end of the main body column 221 remote from the blocking portion 222 is exposed through the electromagnetic coil 23. A retainer ring 24 is screwed to the outer surface of one end of the main body column 221 remote from the closing portion 222, and the electromagnetic coil 23 is clamped and fixed to the main body column 221 by the retainer ring 24 and the closing portion 222.

The stem 22 is provided with a mounting hole 223 communicated with the water flowing cavity 212, and the mounting hole 223 is a blind hole. The mounting hole 223 is disposed opposite the outlet chamber 2122. A movable iron core 25 is slidably connected inside the mounting hole 223, and a compression spring 26 is arranged between the movable iron core 25 and the closed end of the mounting hole 223. One end of the compression spring 26 abuts against the movable iron core 25, and the other end of the compression spring 26 abuts against the end face of the closed end of the mounting hole 223.

The end surface of the plunger 25 facing the closed end of the mounting hole 223 is provided with a receiving hole 251, and the depth of the receiving hole 251 is shorter than the length of the compression spring 26 in a free state. The receiving hole 251 is sized such that the compression spring 26 is fitted into the receiving hole 251. When the plunger 25 abuts against the end face of the closed end of the mounting hole 223, the compression spring 26 is in a compressed state.

A pressure relief hole 252 for communicating the accommodation hole 251 with the water flow chamber 212 is further provided in the plunger 25.

The axial length of the plunger 25 is larger than the hole depth of the mounting hole 223. One end of the plunger 25 is located inside the mounting hole 223, and the other end of the plunger 25 extends into the interior of the water flowing chamber 212. The diameter of the end of the plunger 25 extending into the water flowing chamber 212 is larger than the diameter of the water outlet chamber 2122 and smaller than the diameter of the water inlet chamber 2121.

When the plunger 25 moves toward the outlet 2122, the plunger 25 abuts against a surface of the step facing the inlet 2121 to block the inlet 2121 from the outlet 2122. When the movable iron core 25 moves toward the closed end of the mounting hole 223 to abut against the end surface of the closed end of the mounting hole 223, the movable iron core 25 is separated from the step, and the water inlet chamber 2121, the water outlet chamber 2122, and the communication passage 213 communicate with each other.

When the solenoid coil 23 is energized, the plunger 25 moves toward the closed end of the mounting hole 223, thereby communicating the inlet chamber 2121, the outlet chamber 2122 and the communication passage 213.

A water outlet channel 214 is further disposed inside the valve seat 21, one end of the water outlet channel 214 is communicated with one end of the water outlet cavity 2122 away from the water inlet cavity 2121, and the other end of the water outlet channel 214 is communicated with the outer surface of the side wall of the valve seat 21 facing the water outlet portion 12. The axis of the outlet channel 214 is coaxial with the axis of the outlet portion 12.

A spray head 4 is arranged at one end of the interior of the water outlet part 12 far away from the water inlet part 11, a water outlet pipe 5 is arranged between the spray head 4 and the water outlet channel 214 of the valve seat 21, one end of the water outlet pipe 5 is connected with the water outlet channel 214 of the valve seat 21 through screw threads, and one end of the water outlet pipe 5 is fixedly connected with the spray head 4.

When the water outlet of the solenoid valve faucet needs to be controlled, the electromagnetic coil 23 is energized to drive the movable iron core 25 to move towards the closed end of the mounting hole 223, the movable iron core 25 is separated from the step, at this time, the water inlet hole 211, the communication channel 213, the water inlet cavity 2121 and the water outlet cavity 2122 of the water flowing cavity 212 are communicated with the water outlet channel 214, and the water entering from the water inlet hole 211 flows into the interior of the nozzle 4 along the communication channel 213, the water inlet cavity 2121 and the water outlet cavity 2122 of the water flowing cavity 212, the water outlet channel 214 and the water outlet pipe 5, and is finally sprayed out through the nozzle 4. When the water outlet needs to be stopped, the electromagnetic coil 23 is powered off, the movable iron core 25 is reset under the action of the compression spring 26 to be attached to the step, and the water inlet cavity 2121 and the water outlet cavity 2122 of the water flowing cavity 212 are disconnected. Since the outlet portion 12 is disposed at a downward inclination, the water in the outlet channel 214 flows out along the outlet channel 214.

Referring to fig. 2 and 4, an access hole 113 is formed in the direction of the water inlet portion 11, and the access hole 113 is located between the pipe butt joint and the bottom end 111 of the water inlet portion 11. A cover 114 for closing the access port 113 is provided at the access port 113 of the water inlet portion 11, and the cover 114 is fixed to the water inlet portion 11 by bolts. When the solenoid valve faucet needs to be replaced, the cover 114 is opened, and the pipe butt joint 3 can be separated from the multi-butted pipes.

Referring to fig. 2, the deformation resistance of the water inlet portion 11 is increased, a plurality of protruding rings 115 are provided at intervals along the axial direction of the water inlet portion 11 between the valve seat 21 and the bottom end of the water inlet portion 11 on the inner side surface of the water inlet portion 11, and the protruding rings 115 are integrally formed with the water inlet portion 11.

A cap 13 for covering the tip 112 of the water inlet portion 11 is provided at the tip 112 of the water inlet portion 11, and the cap 13 is engaged with the outside of the tip 112 of the water inlet portion 11.

Example two

The embodiment of the application discloses solenoid valve tap.

Referring to fig. 5 and 6, the difference between the second embodiment and the first embodiment is: the three-way valve 6 is installed at the one end of the pipeline butt joint 3 far away from the valve seat 21, three joints of the three-way valve 6 are connected, one joint is connected with the pipeline butt joint 3 in a butt joint mode, one joint is used for being connected with a water inlet pipeline in a butt joint mode, and the rest joints are connected with a water drain pipe 7.

The stem 22 is provided with a pressure release hole 224 for communicating the inlet chamber 2121 of the flow chamber 212 with the interior of the inlet 11. When the plunger 25 moves to the closed end of the mounting hole 223, the plunger 25 closes the pressure relief hole 224. When the plunger 25 abuts against the step, the pressure release hole 224 connects the water inlet chamber 2121 to the inside of the water inlet 11.

After the water outlet is stopped, the pressure release hole 224 communicates the water inlet cavity 2121 with the inside of the water inlet part 11, the three-way valve communicates the pipeline butt joint 3 with the water outlet pipe 7, and water in the water inlet cavity 2121 and the communication channel 213 flows into the water outlet pipe 7 under the action of gravity and is discharged, so that the stored water in the whole solenoid valve faucet is discharged to the outside, and the solenoid valve faucet is not easy to freeze and cannot be opened in a low-temperature environment.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A solenoid valve tap which is characterized in that: comprises a tap main body (1) and an electromagnetic valve core group (2);

the faucet body (1) comprises a water inlet part (11) with an opening at the bottom end (111) and a hollow inner part and a water outlet part (12) which is positioned on the side of the water inlet part (11) and is communicated with the inner part of the water inlet part (11), wherein the water outlet part (12) is obliquely arranged towards the bottom end (111) of the water inlet part (11);

the electromagnetic valve core group (2) is positioned inside the water inlet part (11);

the electromagnetic valve core group (2) comprises a valve seat (21), a water inlet hole (211) is formed in one end face, facing the bottom end (111) of the water inlet portion (11), of the valve seat (21), a flowing water cavity (212) is formed in one end face, facing the top end (112) of the water inlet portion (11), of the valve seat (21), and a communication channel (213) for communicating the water inlet hole (211) with the flowing water cavity (212) is formed in the valve seat (21);

the running water cavity (212) comprises a water outlet cavity (2122) and a water inlet cavity (2121) which communicates the water outlet cavity (2122) with one end face of the valve seat (21) facing to one end face of the top end (112) of the water inlet part (11), and the communicating channel (213) is communicated with one end of the water inlet cavity (2121) facing to the water outlet cavity (2122);

a water outlet pipe (5) is arranged inside the water outlet part (12), a water outlet channel (214) is also arranged inside the valve seat (21), one end of the water outlet channel (214) is communicated with the water outlet cavity (2122), and the other end of the water outlet channel (214) is communicated with the water outlet pipe (5); the water outlet channel (214) inclines towards the bottom end (111) of the water outlet part (12) from one end communicated with the water outlet cavity (2122) to one end communicated with the side wall surface of the valve seat (21) facing the water outlet part (12);

the electromagnetic valve core group (2) further comprises a control assembly for controlling the disconnection or the communication between the water inlet cavity (2121) and the water outlet cavity (2122), and the control assembly seals the openings of the water inlet cavity (2121) and the valve seat (21) towards the top end (112) of the water inlet part (11).

2. A solenoid operated faucet according to claim 1, wherein: the transverse cross-sectional area of the water inlet cavity (2121) is larger than that of the water outlet cavity (2122) so as to form a step between the water inlet cavity (2121) and the water outlet cavity (2122), the communication channel (213) is communicated with the water inlet cavity (2121) and the communication position is positioned on the side wall of the step facing the water inlet cavity (2121); the control assembly comprises a core column (22) with a closed opening between the water inlet cavity (2121) and the end face of the top end (112) of the valve seat (21) facing the water inlet part (11), a mounting hole (223) communicated with the running water cavity (212) is formed in the core column (22), one end of the mounting hole (223) is open and one end of the mounting hole is closed, a movable iron core (25) is connected to the inside of the mounting hole (223) in a sliding mode, an elastic body is arranged between the movable iron core (25) and the closed end of the mounting hole (223), an electromagnetic coil (23) is arranged on the outside of the core column (22), after the electromagnetic coil (23) is electrified, the movable iron core (25) moves towards the closed end of the mounting hole (223), at the moment, the elastic body is in a compressed state, and the movable iron core (25) and the step () are in a separated state; after the electromagnetic coil (23) is powered off, the movable iron core (25) is abutted with the step () so as to disconnect the water inlet cavity (2121) and the water outlet cavity (2122).

3. A solenoid operated faucet according to claim 2, wherein: an accommodating hole (251) is formed in one end face, facing the mounting hole (223), of the movable iron core (25), the elastic body is located in the accommodating hole (251), and when the movable iron core (25) is abutted to the closed end of the mounting hole (223), the elastic body is in a compressed state.

4. A solenoid operated faucet according to claim 3, wherein: and a pressure relief hole (252) for communicating the accommodating hole (251) with the running water cavity (212) is formed in the movable iron core (25).

5. A solenoid operated faucet according to claim 2, wherein: the stem (22) comprises a main body column (221) and a blocking portion (222) located at one end, facing the valve seat (21), of the main body column (221), the blocking portion (222) closes an opening of the water inlet cavity (2121), the transverse cross-sectional area of the blocking portion (222) is larger than that of the main body column (221), the electromagnetic coil (23) is located outside the main body column (221) and is abutted to the blocking portion (222), a retaining ring (24) is arranged at one end, far away from the blocking portion (222), of the main body column (221), and the electromagnetic coil (23) is clamped and fixed by the retaining ring (24) and the blocking portion (222).

6. A solenoid operated faucet according to claim 2, wherein: still including three-way valve (6), an interface of three-way valve (6) with inlet opening (211) are linked together, are connected with drain pipe (7) on an interface, and remaining interface is used for putting through with the water source, be provided with on stem (22) with flowing water chamber (212) and the pressure hole (224) of putting that the inner chamber of inlet portion (11) is linked together, when moving iron core (25) will go into water chamber (2121) and go out water chamber (2122) disconnection, put pressure hole (224) and communicate between the inner chamber of flowing water chamber (212) and inlet portion (11), when moving iron core (25) will go into water chamber (2121) and go out water chamber (2122) and communicate, move iron core (25) will put pressure hole (224) and seal.

7. A solenoid operated faucet according to claim 1, wherein: and a pipeline butt joint (3) is arranged at the water inlet hole (211).

8. A solenoid operated faucet according to claim 1, wherein: the top (112) of the water inlet part (11) is in an opening shape, and the top (112) of the water inlet part (11) is provided with a cap (13) which seals the opening of the top (112) of the water inlet part (11).

9. A solenoid operated faucet according to claim 1, wherein: the utility model discloses a water inlet structure, including inlet opening (211), inlet opening (11), maintenance mouth (113) are provided with on the lateral wall of the portion of intaking (11), maintenance mouth (113) are located between valve seat (21) and the bottom (111) of the portion of intaking (11), it is used for examining and repairing mouthful (113) confined closing cap (114) to be provided with on the portion of intaking (11), closing cap (114) can be dismantled the connection and be in on the portion of intaking (11).

10. A solenoid operated faucet according to claim 1, wherein: the water inlet part (11) is internally provided with a plurality of convex rings (115) arranged along the axial direction of the water inlet part (11).