CN111828717A

CN111828717A - Solenoid valve based on thing networking just has alarming function

Info

Publication number: CN111828717A
Application number: CN202010752682.7A
Authority: CN
Inventors: 廖慧明
Original assignee: Guangzhou Xinwa Technology Co ltd
Current assignee: Guangzhou Xinwa Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2020-10-27

Abstract

The invention provides an electromagnetic valve with an alarm function based on the Internet of things, which belongs to the technical field of electromagnetic valves and comprises an electromagnetic valve body: the middle part of the outer wall of the top of the electromagnetic valve body is fixed with a protection box through a screw, one end of the outer wall of the top of the protection box is hinged with a top cover through a hinge, one end of the outer wall of the top cover is fixed with a handle through a screw, the outer wall of the bottom of the top cover is provided with a valve mechanism, the middle parts of the outer walls of two sides of the electromagnetic valve body are provided with connecting mechanisms, and the outer wall of one side of the electromagnetic; through setting up coupling mechanism, insert sealing sleeve circumference inner wall with water pipe one end, through rotating the forked tail ear to rotate and close the lead screw and fix the water pipe, be the fill type through setting up sealing sleeve, conveniently seal water pipe one end, avoid spilling over of rivers simultaneously, improve when improving rivers exhaust and detect rivers and water pressure.

Description

Solenoid valve based on thing networking just has alarming function

Technical Field

The invention belongs to the technical field of electromagnetic valves, and particularly relates to an electromagnetic valve with an alarm function based on the Internet of things.

Background

In the prior art, an electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. Used in industrial control systems to regulate the direction, flow, velocity and other parameters of a medium. The electromagnetic valve can be matched with different circuits to realize expected control, the control precision and flexibility can be ensured, equipment is damaged due to the problems of water pressure and water flow in the use process of most electromagnetic valves, and the use state of the equipment cannot be detected and alarmed in the use process.

Through retrieval discovery, in the chinese patent with the publication number CN206582379U, an electromagnetic valve based on internet of things control is disclosed, which comprises a valve body, a water inlet pipe, a water outlet pipe, a switch mechanism and a central control mechanism, wherein the switch mechanism comprises a switch component and an electromagnetic component, the switch component comprises a piston, a piston rod, a conduction pipe, a spring, a movable iron core and a movable ejector rod, a working power supply module comprises a working power supply circuit, and in the electromagnetic valve based on internet of things control, a central control module, a coil control module, a wireless communication module, a flow detection module, a display control module, a key control module, a state indication module and a working power supply module are arranged in the central control mechanism.

However, according to the technical scheme, the water inlet pipe and the water outlet pipe are arranged on the two sides of the valve body, so that water cannot be discharged in time when water pressure is too high when water is drained, and the problem that equipment is damaged due to water pressure is solved.

Disclosure of Invention

The invention aims to provide an electromagnetic valve with an alarm function based on the Internet of things, and aims to solve the problem of the electromagnetic valve in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the electromagnetic valve comprises an electromagnetic valve body: the middle part of the outer wall of the top of the electromagnetic valve body is fixed with a protection box through screws, one end of the outer wall of the top of the protection box is connected with a top cover through a hinge, one end of the outer wall of the top cover is fixed with a handle through screws, the outer wall of the bottom of the top cover is provided with a valve mechanism, the middle parts of the outer walls of two sides of the electromagnetic valve body are provided with connecting mechanisms, and the outer wall of one side of the electromagnetic valve body.

In order to conveniently fix the slide rod and avoid the slide rod from deviating due to a certain pressure generated by the compression of the telescopic spring so as to damage the normal use of equipment, the valve mechanism preferably comprises the slide rod and a valve port, the slide rod is clamped in the middle part outside the bottom of the top cover, and one end of the circumferential outer wall of the slide rod is sleeved with the telescopic spring.

In order to facilitate the lifting and closing of the valve and prevent water from overflowing, as a preferable choice of the invention, one end of the circumferential outer wall of the sliding rod is connected with a lifting support in a sliding manner, iron cores are fixed at the top ends of the outer walls on the two sides of the lifting support through screws, the outer key at the bottom of the sliding rod is connected with a limiting plate in a connecting manner, one end of a telescopic spring is welded at the middle part of the outer wall at the top of the lifting support, a valve port is arranged at the middle part of the outer wall at the top of the electromagnetic valve body, sealing rings are arranged on the outer walls on the.

In order to adsorb the iron core, enable the valve to lift and conveniently control the valve to drain water, the protection box is preferably selected; the top ends of the inner walls of the two sides are fixed with an electromagnetic coil box through screws, and an electromagnetic coil is arranged on the inner wall of one side of the electromagnetic coil box.

In order to facilitate the connection of the water pipe and facilitate the drainage at the same time, the connection mechanism preferably comprises a connection port, a first switching barrel is arranged outside one side of the connection port, a first fixing pipe is arranged on the outer wall of one side of the first switching barrel and welded in the middle of the outer wall of one side of the solenoid valve body, a second fixing pipe is welded on the outer wall of the other side of the solenoid valve body, a second switching barrel is arranged on the outer wall of one side of the second fixing pipe, a tightening screw rod is arranged on the outer wall of the circumference of the connection port, a dovetail lug is welded on the outer wall of the top of the tightening screw rod, a water inlet is arranged outside one side of the connection port.

Preferably, the detection mechanism comprises a water pressure sensor and a water flow sensor, the water pressure sensor is arranged on the circumferential inner wall of the first fixed pipe, and the water flow sensor is arranged on the circumferential inner wall of the second fixed pipe.

In order to alarm and remind when the detected water pressure is too high and avoid the water loss to detect the valve closing state, the invention is preferably characterized in that a water pressure alarm is fixed at one end of the outer wall of one side of the electromagnetic valve body through a screw, and a water flow alarm is fixed at the other end of the outer wall of one side of the electromagnetic valve body through a screw.

Preferably, the solenoid valve based on thing networking and have alarming function, its characterized in that still includes: the data acquisition device, the reminding device and the data analysis device and the data forwarding device are sequentially connected with the data acquisition device;

the data acquisition device is also connected with the water flow sensor;

the data acquisition device is used for acquiring water flow information which is detected by the water flow sensor and needs to be alarmed;

the data analysis device segments the water flow information which needs to be alarmed and is acquired by the data acquisition device, standardizes the segmented water flow information which needs to be alarmed, and analyzes whether abnormal data exist or not;

if the water flow sensor needs to alarm, sending a re-acquisition instruction to the data acquisition device, and acquiring water flow information which needs to alarm and is detected by the water flow sensor again by the data acquisition device according to the re-acquisition instruction;

if the water flow information does not exist, the analyzed water flow information needing to be alarmed is compared with the water flow information corresponding to the preset alarming time;

if the analyzed water flow information needing to be alarmed is smaller than the water flow information corresponding to the preset alarm, controlling the reminding device to remind that false alarm exists;

otherwise, controlling the reminding device to remind that false alarm does not exist, and forwarding the collected water flow information needing to be alarmed to the water flow alarm by the data forwarding device to alarm.

the data acquisition device is also connected with the water flow sensor;

the data analysis device segments the water flow information needing to be alarmed, which is acquired by the data acquisition device, standardizes the segmented water flow information needing to be alarmed to obtain a water flow value corresponding to the water flow information, and analyzes whether abnormal data exist or not;

if the water flow value does not exist, comparing the analyzed water flow value needing to be alarmed with a preset water flow value corresponding to alarming;

if the analyzed water flow value needing to be alarmed is smaller than the corresponding water flow value preset to be alarmed, controlling the reminding device to remind that false alarm exists;

Preferably, the solenoid valve based on the internet of things and having the alarm function includes:

a single chip microcomputer, a data comparator and an indicator light are arranged outside the electromagnetic valve body;

a flow velocity sensor is arranged in the electromagnetic valve body;

the single chip microcomputer is connected with the data comparator and the indicator lamp, and is also connected with the water flow alarm and the flow velocity sensor;

the single chip microcomputer is used for calculating the flow of water with different water flow speeds passing through the electromagnetic valve in a preset time period based on the water flow speed of the electromagnetic valve calculated by the flow speed sensor, and comprises:

the flow rate sensor is used for calculating the water flow speed passing through the electromagnetic valve according to the following formula:

wherein V represents the water flow rate through the solenoid valve; ρ represents the water density passing through the solenoid valve; r represents the radius of the electromagnetic valve water inlet; t represents the time of flow through the solenoid valve; ξ represents the sensitivity coefficient of the flow rate sensor;

the single chip microcomputer is also used for calculating the water flow passing through the electromagnetic valve according to the water flow speed and by the following formula:

wherein Q represents the water flow through the solenoid valve; v represents the water flow rate through the solenoid valve; p represents the pressure difference between two ends of the solenoid valve; η represents the viscosity coefficient of water passing through the solenoid valve; l represents a pipe length flowing through a pipe connected to the solenoid valve; d represents the diameter of the water inlet of the electromagnetic valve; t' represents the time of a preset time period;

transmitting the calculated water flow to a data comparator to be compared with a preset water flow;

if the calculated water flow is smaller than or equal to the preset water flow, the single chip microcomputer controls the indicator lamp to perform first display;

otherwise, the single chip microcomputer controls the indicating lamp to carry out second display, and simultaneously the single chip microcomputer controls the water flow alarm to give an alarm.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up the top cap, open and shut the top cap through the pulling handle, conveniently carry out the periodic overhaul to valve mechanism, prolong the life of solenoid valve body, reduce cost improves the availability factor and the quality of solenoid valve, conveniently connects the water pipe through coupling mechanism to the convenience carries out conventional detection to it.

2. Through setting up coupling mechanism, insert sealing sleeve circumference inner wall with water pipe one end, through rotating the forked tail ear to rotate and close the lead screw and fix the water pipe, be the fill type through setting up sealing sleeve, conveniently seal water pipe one end, avoid spilling over of rivers simultaneously, improve when improving rivers exhaust and detect rivers and water pressure.

3. Through setting up detection mechanism, water pressure sensor detects water pressure and transmits signal transmission to control system when too big to make control system control water pressure alarm report to the police, conveniently control the solenoid valve through control system, under the valve closed state, water flow sensor response has the rivers to pass through with signal transmission control system, control system opens water flow alarm suggestion valve trouble, the safety control to the drainage is conveniently avoided water pressure too big to damage equipment, the loss of water when avoiding closing the solenoid valve simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the inner structure of a second adapter of the present invention;

FIG. 4 is a schematic view of the valve mechanism of the present invention;

FIG. 5 is a schematic diagram of a control unit in the present invention;

FIG. 6 is a schematic diagram of the connection of the false alarm detection device according to the present invention;

fig. 7 is a schematic diagram of the connection of the single chip microcomputer in the invention.

In the figure: 1-a solenoid valve body; 2-a connecting port; 3-closing the screw rod; 4-dovetail ears; 5-a first transfer barrel; 6-a protection box; 7-a top cover; 8-handle; 9-a second transfer barrel; 10-water flow alarm; 11-a water inlet; 12-a water pressure sensor; 13-sealing the sleeve; 14-a valve; 15-a water flow sensor; 16-a solenoid case; 17-valve port; 18-a sealing ring; 19-a slide bar; 20-a telescopic spring; 21-iron core; 22-a lifting support; 23-a limiting plate; 24-water pressure alarm.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: including solenoid valve body 1, the middle part of the outer wall of 1 top of solenoid valve body has guard box 6 through the fix with screw, and the one end of the outer wall of 6 tops of guard box is passed through the hinge and is connected with top cap 7, and the one end of the outer wall of 7 tops of top cap has handle 8 through the fix with screw, and 7 bottom outer walls of top cap are provided with valve mechanism, and the middle part of the outer wall of 1 both sides of solenoid valve body is provided with coupling mechanism, and 1 one side outer wall of solenoid valve body is provided with detection mechanism.

In the specific embodiment of the invention, the handle 8 is pulled to open and close the top cover 7, so that the valve mechanism is convenient to periodically overhaul, the service life of the electromagnetic valve body 1 is prolonged, the cost is reduced, the use efficiency and the quality of the electromagnetic valve are improved, and the water pipe is convenient to connect through the connecting mechanism, so that the conventional detection is convenient.

Specifically, the valve mechanism comprises a sliding rod 19 and a valve port 17, the sliding rod 19 is clamped in the middle of the outside of the bottom of the top cover 7, an expansion spring 20 is sleeved at one end of the circumferential outer wall of the sliding rod 19, a lifting support 22 is slidably connected to one end of the circumferential outer wall of the sliding rod 19, an iron core 21 is fixed to the top ends of the outer walls of two sides of the lifting support 22 through screws, a limiting plate 23 is connected to the outside of the bottom of the sliding rod 19 in a key mode, one end of the expansion spring 20 is welded in the middle of the outer wall of the top of the lifting support 22, the valve port 17 is arranged in the middle of the outer wall of the top of the solenoid valve body 1, sealing rings 18 are arranged on the outer; the top ends of the inner walls of the two sides are fixed with an electromagnetic coil box 16 through screws, and an electromagnetic coil is arranged on the inner wall of one side of the electromagnetic coil box 16.

In this embodiment: control solenoid circular telegram through control system, solenoid produces magnetic force, thereby adsorb iron core 21, iron core 21 risees under magnetic force, iron core 21 drives lifting support 22 and goes up and down at slide bar 19 circumference outer wall, lifting support 22 drives valve 14 and risees in valve port 17, thereby drive valve port 17 and open and carry out the drainage, when lifting support 22 risees, expanding spring 20 compresses, cut off power supply to solenoid through control system, thereby lose magnetism to iron core 21, thereby make valve 14 reset under expanding spring 20 spring action, break off rivers, conveniently control the emission to rivers, carry out spacingly to slide bar 19 through limiting plate 23, slide bar 19 drops when avoiding sliding, damage solenoid valve body 1's normal use.

Specifically, coupling mechanism includes connector 2, connector 2 one side outside is provided with

first switching bucket

5, 5 one side outer walls of first switching bucket are provided with first fixed pipe, first fixed union coupling welds in the middle part of 1 one side outer wall of solenoid valve body, 1 opposite side outer wall welding of solenoid valve body has the fixed pipe of second, the fixed pipe of one side outer wall of second is provided with second switching bucket 9, connector 2 circumference outer wall is provided with the tight silk pole 3 that closes, the outer wall welding of 3 tops of tight silk pole has forked tail ear 4, connector 2 one side outside is provided with water inlet 11, water inlet 11 circumference inner wall is provided with sealing sleeve 13.

In this embodiment: insert sealed sleeve 13 circumference inner wall with water pipe one end, through rotating forked tail ear 4 to it fixes the water pipe to rotate to close lead screw 3, and is the fill type through setting up sealed sleeve 13, conveniently seals water pipe one end, avoids spilling over of rivers simultaneously, improves when improving rivers exhaust and detects rivers and water pressure.

Specifically, detection mechanism includes water pressure sensor 12 and water flow sensor 15, and water pressure sensor 12 sets up in the fixed pipe circumference inner wall of first, and water flow sensor 15 sets up in the fixed pipe circumference inner wall of second, and the one end of 1 one side outer wall of solenoid valve body has water pressure alarm 24 through the fix with screw, and water pressure alarm 24's model is YLM-4, and the other end of 1 one side outer wall of solenoid valve body has water flow alarm 10 through the fix with screw, and water flow alarm 10 is Siemens water flow alarm.

In this embodiment: the water pressure sensor 12 is of type PT311, the chip is enclosed in a first fixed tube, a steel cap on the top acts to protect the sensor diaphragm, meanwhile, the liquid is smoothly contacted with the diaphragm, the measured liquid level is not influenced by the change of the external atmospheric pressure, the measurement is accurate, the long-term stability is good, and the sealing and corrosion-resistant performance is excellent, can be directly put into water for long-term use, the water pressure sensor 12 transmits signals to the control system when detecting that the water pressure is overlarge, thereby leading the control system to control the water pressure alarm 24 to give an alarm, being convenient for controlling the electromagnetic valve through the control system, under the closing state of the valve 14, when the water flow sensor 15 senses that water flows, the signal transmission control system is used, the control system opens the water flow alarm 10 to prompt the fault of the valve 14, the safety control on drainage is facilitated, the equipment is prevented from being damaged due to excessive water pressure, and meanwhile, the water loss when the electromagnetic valve is closed is avoided.

The working principle and the using process of the invention are as follows: the device is connected with a power supply, one end of a water pipe is inserted into the circumferential inner wall of a sealing sleeve 13, the dovetail lug 4 is rotated, the water pipe is fixed by rotating the locking screw rod 3, the electromagnetic coil is controlled by a control system to be electrified and generates magnetic force to adsorb the iron core 21, the iron core 21 rises under the action of the magnetic force, the iron core 21 drives the lifting support 22 to rise and fall on the circumferential outer wall of the sliding rod 19, the lifting support 22 drives the valve 14 to rise in the valve port 17 to drive the valve port 17 to open for draining, when the lifting support 22 rises, the telescopic spring 20 is compressed, the electromagnetic coil is powered off by the control system, the magnetic attraction effect on the iron core 21 is lost, the valve 14 is reset under the elastic force action of the telescopic spring 20, the water flow is cut off, the sliding rod 19 is limited by the limiting plate 23, and, water pressure sensor 12 detects water pressure and transmits the signal to control system when too big to make control system control water pressure alarm 24 report to the police, conveniently control the solenoid valve through control system, under the valve 14 closed condition, water flow sensor 15 responds to the water flow and passes through the time with signal transmission control system, and control system opens water flow alarm 10 and reminds valve 14 trouble, opens and shuts top cap 7 through pulling handle 8, conveniently carries out periodic overhaul to valve mechanism.

The invention provides a new technical scheme, and the electromagnetic valve based on the internet of things and having the alarm function, as shown in fig. 6, further comprises: the data acquisition device, the reminding device and the data analysis device and the data forwarding device are sequentially connected with the data acquisition device;

the data acquisition device is also connected with the water flow sensor 15;

the data acquisition device is used for acquiring water flow information which needs to be alarmed and is detected by the water flow sensor 15;

if the alarm condition exists, sending a re-acquisition instruction to the data acquisition device, and acquiring water flow information needing to be alarmed, which is detected by the water flow sensor 15, again by the data acquisition device according to the re-acquisition instruction;

otherwise, controlling the reminding device to remind that false alarm does not exist, and forwarding the collected water flow information needing to be alarmed to the water flow alarm 10 by the data forwarding device to alarm.

In this embodiment, the preset water flow information corresponding to the alarm indicates that the solenoid valve performs a preset value in advance according to the required water flow

The working principle and the beneficial effects of the technical scheme are as follows: the detected water flow information is sampled through the data acquisition device, the data analysis device analyzes the sampled information, whether abnormal data exist in the sampled information or not is analyzed, irrelevant interference items are eliminated, accurate analysis on the data is facilitated, the data needs to be acquired again if the abnormal data exist, and if the abnormal data do not exist, the analyzed data are compared with preset data, so that whether false alarm exists or not is determined, and the accuracy of the device in alarming is improved.

The invention provides a new technical scheme, and the electromagnetic valve based on the Internet of things and having the alarm function is shown in fig. 7:

a single chip microcomputer, a data comparator and an indicator lamp are arranged outside the electromagnetic valve body 1;

a flow velocity sensor is arranged in the electromagnetic valve body 1;

the single chip microcomputer is connected with the data comparator and the indicator lamp, and is also connected with the water flow alarm 24 and the flow velocity sensor;

wherein V represents the water flow rate through the solenoid valve; ρ represents the water density passing through the solenoid valve; r represents the radius of the solenoid valve water inlet 11; t represents the time of flow through the solenoid valve; ξ represents the sensitivity coefficient of the flow rate sensor;

wherein Q represents the water flow through the solenoid valve; v represents the water flow rate through the solenoid valve; p represents the pressure difference between two ends of the solenoid valve; η represents the viscosity coefficient of water passing through the solenoid valve; l represents a pipe length flowing through a pipe connected to the solenoid valve; d represents the diameter of the electromagnetic valve water inlet 11; t' represents the time of a preset time period;

otherwise, the single chip microcomputer controls the indicator light to perform second display, and simultaneously the single chip microcomputer controls the water flow alarm 10 to alarm.

In this embodiment, the water density refers to the density of water corresponding to different water qualities.

The working principle and the beneficial effects of the technical scheme are as follows: the water flow speed passing through the electromagnetic valve is calculated through the flow velocity sensor, so that the water flow passing through the electromagnetic valve in the working time is calculated according to the water flow speed, the calculated result is compared with preset water flow information, the calculated water flow information is smaller than or equal to preset water flow, the single chip microcomputer controls the display lamp to perform first display, if the calculated water flow information is larger than the preset water flow, the single chip microcomputer controls the water flow alarm to give an alarm, meanwhile, the display lamp is controlled to perform second display, and the control of the electromagnetic valve on the water flow is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electromagnetic valve based on thing networking just has alarming function which characterized in that: comprises a solenoid valve body (1):

the middle part of the outer wall of the top of the electromagnetic valve body (1) is fixed with a protection box (6) through screws, one end of the outer wall of the top of the protection box (6) is connected with a top cover (7) through a hinge, one end of the outer wall of the top cover (7) is fixed with a handle (8) through screws, the outer wall of the bottom of the top cover (7) is provided with a valve mechanism, the middle parts of the outer walls of the two sides of the electromagnetic valve body (1) are provided with a connecting mechanism, and the outer wall of one side of the electromagnetic.

2. The electromagnetic valve based on the internet of things and having the alarm function as claimed in claim 1, wherein: the valve mechanism comprises a sliding rod (19) and a valve port (17), the sliding rod (19) is clamped in the middle of the outer portion of the bottom of the top cover (7), and one end of the circumferential outer wall of the sliding rod (19) is sleeved with a telescopic spring (20).

3. The electromagnetic valve based on the internet of things and having the alarm function as claimed in claim 2, wherein: the one end sliding connection of slide bar (19) circumference outer wall has lifting support (22), there is iron core (21) on the top of lifting support (22) both sides outer wall through the fix with screw, slide bar (19) bottom external key-type connection has limiting plate (23), expanding spring (20) one end welds in the middle part of lifting support (22) top outer wall, valve port (17) set up in the middle part of solenoid valve body (1) top outer wall, the outer wall of four sides of valve port (17) is provided with sealing washer (18), the outer wall sliding connection of four sides of sealing washer (18) has valve (14), valve (14) weld in lifting support (22) bottom outer wall.

4. The electromagnetic valve based on the internet of things and having the alarm function as claimed in claim 1, wherein: the protection box (6); the top ends of the inner walls at two sides are fixed with an electromagnetic coil box (16) through screws, and an electromagnetic coil is arranged on the inner wall at one side of the electromagnetic coil box (16).

5. The electromagnetic valve based on the internet of things and having the alarm function as claimed in claim 1, wherein: coupling mechanism includes connector (2), connector (2) one side outside is provided with first switching bucket (5), first switching bucket (5) one side outer wall is provided with first fixed pipe, first fixed union coupling is in the middle part of solenoid valve body (1) one side outer wall, solenoid valve body (1) opposite side outer wall welding has the fixed pipe of second, the fixed pipe one side outer wall of second is provided with second switching bucket (9), connector (2) circumference outer wall is provided with closes tight lead screw (3), close tight lead screw (3) top outer wall welding has forked tail ear (4), connector (2) one side outside is provided with water inlet (11), water inlet (11) circumference inner wall is provided with sealing sleeve (13).

6. The electromagnetic valve based on the internet of things and having the alarm function as claimed in claim 1, wherein: the detection mechanism comprises a water pressure sensor (12) and a water flow sensor (15), the water pressure sensor (12) is arranged on the inner wall of the circumference of the first fixed pipe, and the water flow sensor (15) is arranged on the inner wall of the circumference of the second fixed pipe.

7. The electromagnetic valve based on the internet of things and having the alarm function as claimed in claim 1, wherein: one end of the outer wall of one side of the electromagnetic valve body (1) is fixed with a water pressure alarm (24) through a screw, and the other end of the outer wall of one side of the electromagnetic valve body (1) is fixed with a water flow alarm (10) through a screw.

8. The electromagnetic valve based on the internet of things and having the alarm function as claimed in claim 1, further comprising: the data acquisition device, the reminding device and the data analysis device and the data forwarding device are sequentially connected with the data acquisition device;

the data acquisition device is also connected with the water flow sensor (15);

the data acquisition device is used for acquiring water flow information which is detected by the water flow sensor (15) and needs to be alarmed;

if the water flow sensor (15) is detected to be in the alarm state, sending a re-acquisition instruction to the data acquisition device, and re-acquiring the water flow information which is detected by the water flow sensor (15) and needs to be alarmed by the data acquisition device according to the re-acquisition instruction;

otherwise, the reminding device is controlled to remind that false alarm does not exist, and the data forwarding device forwards the collected water flow information needing to be alarmed to the water flow alarm (10) to alarm.

9. The electromagnetic valve based on the internet of things and having the alarm function as claimed in claim 7, wherein:

a single chip microcomputer, a data comparator and an indicator lamp are arranged outside the electromagnetic valve body (1);

a flow velocity sensor is arranged in the electromagnetic valve body (1);

the single chip microcomputer is connected with the data comparator and the indicator lamp, and is also connected with the water flow alarm (24) and the flow velocity sensor;

wherein V represents the water flow rate through the solenoid valve; ρ represents the water density passing through the solenoid valve; r represents the radius of the solenoid valve water inlet (11); t represents the time of flow through the solenoid valve; ξ represents the sensitivity coefficient of the flow rate sensor;

wherein Q represents the water flow through the solenoid valve; v represents the water flow rate through the solenoid valve; p represents the pressure difference between two ends of the solenoid valve; η represents the viscosity coefficient of water passing through the solenoid valve; l represents a pipe length flowing through a pipe connected to the solenoid valve; d represents the diameter of the electromagnetic valve water inlet (11); t' represents the time of a preset time period;

otherwise, the single chip microcomputer controls the indicating lamp to carry out second display, and simultaneously the single chip microcomputer controls the water flow alarm (10) to give an alarm.