CN107940068B

CN107940068B - Automatic water leakage protection system and integrated electric valve

Info

Publication number: CN107940068B
Application number: CN201711160535.5A
Authority: CN
Inventors: 李远雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-20
Filing date: 2017-11-20
Publication date: 2020-03-31
Anticipated expiration: 2037-11-20
Also published as: CN107940068A

Abstract

The invention discloses an automatic water leakage protection system which mainly comprises a detector, a signal emitter, a signal receiver, a main controller and a valve with a motor, wherein the signal emitter is arranged on the detector; the detector is used for detecting surface water and comprises a power supply circuit, a standby power supply circuit and a trigger circuit; the power circuit has an AC input terminal and a DC output terminal; the standby power supply circuit is used for storing electric energy from the power supply circuit; the trigger circuit is simultaneously connected with the power supply circuit and the standby power supply circuit and is provided with a probe for detecting surface water accumulation; the signal emitter is connected with the output end of the trigger circuit; the main controller is connected with the signal receiver, and the signal receiver is connected with the signal transmitter through a wireless link; the main controller controls the forward transmission or the reverse transmission of the motor. The invention also provides an integrated electric valve. The invention can effectively realize automatic protection of water pipe leakage, has low price, safety and reliability, and can reduce or avoid property loss.

Description

Automatic water leakage protection system and integrated electric valve

Technical Field

The invention belongs to the technical field of water heating valves, and particularly relates to an automatic water leakage protection system and an integrated electric valve.

Background

The automatic water consumption of residents is one of the main manifestations of modern life. However, due to factors such as pipeline construction defects, water valve failure or pipeline aging, accidents such as indoor flooding and water soaking are often caused. Particularly, in residential buildings, water leakage accidents easily cause permeation of upper and lower floors, and more serious property loss is brought.

In a residential building for central heating in the north, each household is provided with three water inlet pipes such as a tap water pipe, a heating water supply pipe and a heating water return pipe. In building construction, it is common practice to install a water valve on each of the three water pipes, and the water valve is generally installed outside a door, such as in a water and electricity box of a building unit. However, the general indoor water pipes are all installed in the wall, and when a water leakage accident occurs, the water leakage position and the specific water pipe are difficult to judge in the first time in a short time. Therefore, people need to manually close the water valves on the three water pipes one by one from the unit water and electricity box, the method is not timely, the method is more complicated, and the water valves are more in quantity and high in cost.

More seriously, a water leak occurs when no one is present in the house, in which case it is not possible to close all the water valves at all in time.

Some have designed automatic control valves for automatically detecting water leakage accidents, using a box-shaped detector placed on the ground to wirelessly transmit signals to a valve controller. However, from the use point of view, the box-shaped detector has at least the following defects:

1. the mode of placing on the ground is adopted, so that the walking and indoor cleaning of people are influenced;

2. for example, in the case of bathing and the like, false triggering caused by water splashing and water splashing is easy to happen;

3. dust, stains and bacteria are easy to be infected;

4. the batteries need to be replaced frequently.

It is seen that the product for automatically detecting and controlling the valve is inconvenient in use.

The invention provides a complete and perfect solution for the automatic protection of indoor water leakage accidents.

Disclosure of Invention

The invention aims to solve the technical problem that water valves of residential building entrance water pipes cannot be closed timely and simultaneously when a water leakage accident occurs in the prior art, and provides an automatic water leakage protection system and an integrated electric valve.

The invention provides an automatic water leakage protection system which mainly comprises a detector, a signal emitter, a signal receiver, a main controller and a valve with a motor, wherein the signal emitter is arranged on the detector; the detector is used for detecting surface water and comprises a power supply circuit, a standby power supply circuit and a trigger circuit; the power supply circuit is provided with an alternating current input end and a direct current output end; the standby power supply circuit is used for storing the electric energy from the power supply circuit; the trigger circuit is simultaneously connected with the power supply circuit and the standby power supply circuit and is provided with a probe for detecting surface water accumulation; the signal emitter is connected with the output end of the trigger circuit; the main controller is connected with a signal receiver, and the signal receiver is connected with a signal transmitter through a wireless link; the main controller controls the forward transmission or the reverse rotation of the motor.

The trigger circuit comprises a relay; one end of a main coil of the relay is simultaneously connected with a power circuit and a standby power supply, and the other end of the main coil is vacant and used as a probe for detecting surface water accumulation; one end of a secondary coil of the relay is simultaneously connected with the power circuit and the standby power supply, and the other end of the secondary coil is connected with the switch K in series and is connected to the emitter module; the movable contact of the switch K is controlled by the main coil of the relay J.

One end of a main coil of the relay is connected with a power supply circuit through a resistor R1 and a resistor R2, and is connected with a standby power supply through a resistor R2; one end of the secondary coil of the relay J is connected with a power circuit, and is connected with a standby power supply through a resistor R1.

The transmitter module generates different transmitting signals according to the on or off of the switch K.

The detector and emitter modules are integrated on a circuit board, mounted in a wall hole under a socket panel or a switch panel, and the AC input end of the detector power circuit is connected to a single-phase live wire.

The detector and emitter modules are mounted in a housing and are in the form of two-pin plugs that plug into sockets.

A normally closed push-button switch is arranged between the switch K and the transmitter module.

The invention also provides an integrated electric valve for the automatic water leakage control system, which mainly comprises a valve body, a driver and a connected valve core; a plurality of water pipe joints are symmetrically arranged on the outer side of the valve body; a plurality of valve core seats are arranged in the valve body; the conjoined valve core is arranged in a valve core seat in the valve body and comprises at least two ball valve heads which are arranged on the valve rod in series, and the number of the ball valve heads is equal to the number of pairs of the water pipe connectors; the actuator is connected to the valve stem.

Preferably, the conjoined ball valve is provided with 3 ball valve heads and 3 pairs of water pipe joints.

The invention also provides another integrated electric valve for the automatic water leakage control system, which mainly comprises a valve body, a driver and a ball valve head; a plurality of water pipe joints are symmetrically arranged on the outer side of the valve body; a plurality of valve core seats are arranged in the valve body, and the number of the valve core seats is equal to the number of pairs of the water pipe joints; the driver is arranged on one side of the valve body in the length direction and is connected with the ball valve head; and one ball valve head is arranged in each valve core seat.

The invention designs a small and practical water leakage detector which can be arranged in a wall hole below a socket panel or a switch panel, thereby avoiding a plurality of defects caused by placing the water leakage detector on the ground and eliminating the inconvenience of replacing batteries. Meanwhile, the invention provides an integrated automatic valve which is convenient to close and open by a main controller at one time due to the structure. The invention can effectively realize automatic protection of water pipe leakage, has low price, safety and reliability, and can reduce or avoid property loss.

Drawings

FIG. 1 is a block diagram of an automatic water leakage control system according to the present invention;

FIG. 2 is a first preferred embodiment of the detection circuit of the present invention;

FIG. 3 is a second preferred embodiment of the detection circuit of the present invention;

FIG. 4 is an elevational view of a first preferred valve construction of the present invention;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

FIG. 6 is a front view of the one-piece valve cartridge of FIG. 4;

FIG. 7 is an elevational view of a second preferred valve construction of the present invention;

fig. 8 is a sectional view taken along line B-B in fig. 7.

In the figure: 1. a valve body; 11. a water pipe joint; 12. a valve core seat; 2. a driver; 21. a drive shaft; 22. a speed reduction mechanism; 3. a conjoined valve core; 31. a ball valve head; 32. a spacer; 33. a driving end; 34. a ball valve bore; 35. a waterproof gasket; 36 a handle jack; 4. a handle.

Detailed Description

The present invention is described in further detail below with reference to the attached drawing figures. The drawings are only for convenience of understanding the technical scheme of the invention and are not to be construed as limiting the technical scheme of the invention, and unnecessary components in the drawings can be combined, increased or decreased as required without affecting the main function of the invention.

Fig. 1 schematically shows an automatic water leakage protection system according to the present invention, which mainly comprises a detector, a signal transmitter, a signal receiver, a main controller and a valve with a motor.

The detector is used for detecting surface water and sending out a water leakage detection signal and comprises a power supply circuit, a standby power supply circuit and a trigger circuit. The power supply circuit is used for converting single-phase alternating current into direct current, and is preferably provided with a filter circuit. The standby power supply is used for storing electric energy, and the automatic water leakage protection system does not work when the power is cut off. The trigger circuit can detect surface water accumulation and is connected with the emitter module.

As shown in fig. 2, the ac input terminal of the power circuit is a half-wave rectifier circuit (single-tube) or a bidirectional half-bridge rectifier circuit (double-tube reverse parallel) composed of power diodes (D1, D2), transistors, MOS transistors, IGBTs, or the like. The direct current output end of the power supply circuit is connected with a filter circuit consisting of an inductor L and a capacitor C1.

The standby power supply selects an energy storage capacitor C2 or a rechargeable lithium battery, and a current limiting resistor R1 is arranged between the standby power supply and the power supply circuit. The standby power supply is connected with a voltage limiting diode D3 in parallel.

The trigger circuit comprises a normally open or normally closed relay J, one end of a main coil of the relay J is connected with a power supply circuit through a resistor R1 and a resistor R2, and is connected with a standby power supply through a resistor R2, and the other end of the main coil is vacant and used as a probe T for detecting surface water. One end of a secondary coil of the relay J is connected with a power circuit, and is connected with a standby power supply through a resistor R1, and the other end of the secondary coil is connected with a switch K in series and is connected to the emitter module. The movable contact of the switch K is controlled by the main coil of the relay J.

The transmitter module generates different transmitting signals according to different signals of the trigger circuit, namely the on or off of the switch K.

The receiver module is used for receiving the signal of the transmitter module and transmitting the signal to the main controller. The main controller controls the forward transmission or the reverse transmission of the valve motor according to different transmitting signals of the transmitter module.

The transmitter module and the receiver module in the invention can use wireless communication technology in the prior art, such as Bluetooth communication, WIFI communication, ZIGBEE communication, or analog communication technology used by interphone. The main controller can select a mature singlechip or MCU to realize signal identification processing and control on the motor.

In practical application, the detector and emitter module of the invention is integrated on a circuit board, and can be installed in a wall hole under a common socket panel or a switch panel due to very small volume, so that the alternating current input end of the detector power supply circuit is connected to a single-phase live wire. The probe T is preferably a flat wire of a plastic package body, which is led out from the edge of the socket panel or the switch panel and is hung on the ground. According to experience and tests, water drops and water beaches on the ground are not caused by water leakage accidents generally, indoor water soaking and other losses are not caused, and the thickness of the water drops and the water beaches is basically below 3 mm. The probe T is an electric wire with an exposed wire end, is arranged at a height of 5 mm from the ground, and can be connected with a power circuit or a standby power supply when indoor water leakage reaches or exceeds 5 mm, the relay main coil is conducted and enables the contact of the switch K to act, so that the emitter module is triggered to send out a signal (one of high level, low level and code), and the main controller controls the motor to close the valve according to the signal. When the probe T is not in contact with water, the main coil of the relay loses power, the contact of the switch K acts again, the emitter module acts accordingly to emit corresponding signals, and the main controller controls the motor to open the valve according to the corresponding signals. The circuit of this embodiment adopts a structure as shown in fig. 2.

As another alternative embodiment, the detector and emitter module of the present invention may be mounted in a single housing and configured to be inserted into a socket in the form of a two-pin plug, the circuit configuration of which is shown in FIG. 3.

In a preferred embodiment, in the embodiment shown in fig. 2 and 3, a normally closed push button switch (not shown) is provided between switch K and the transmitter module, and activation of the push button switch forces the transmitter module to signal opening of the valve.

In a preferred embodiment, the invention is additionally provided with a remote control which can be manually controlled to signal the receiver module to open or close the valve.

As an alternative, the foregoing embodiment of the present invention may omit the transmitter module and the receiver module, and the detector and the main controller are directly connected by wires.

The invention preferably uses an integrated electric water pipe valve with the structure shown in the attached figures 4 to 6, which mainly comprises a valve body 1, a driver 2 and a conjoined valve core 3. A plurality of water pipe joints 11 are symmetrically arranged on the outer side of the valve body 1. A plurality of valve core seats 12 are arranged in the valve body 1, and the number of the valve core seats 12 is preferably equal to the number of pairs of the water pipe joints 11. Each valve core seat 12 is provided with a through hole which is communicated with the water pipe connector 11.

As shown in fig. 5 and 6, the conjoined valve core 3 is installed in the valve core seat 12 in the valve body 1, and includes at least two ball valve heads 31 arranged on the valve rod in series, and the number of the ball valve heads 31 is equal to the number of pairs of the water pipe joints 11. The number of the ball valve heads 31 is the same as that of the valve core seats 12, each ball valve head 31 is provided with a through ball valve hole 34, and the ball valve holes 34 of the plurality of ball valve heads 31 are arranged in a coplanar mode along the axis of the valve rod. The two sides of each ball valve head 31 are provided with a spacer 32, the spacer 32 is provided with at least one waterproof gasket 35, and the spacer 32 and the waterproof gasket 35 can seal and isolate the ball valve heads 31 from each other in the valve body 1.

Referring to fig. 4 and 5, the driver 2 is disposed at one end of the valve body 1, and includes a motor, a driving shaft 21 and a speed reducing mechanism 22, wherein one end of the driving shaft 21 is connected to an output shaft of the motor through the speed reducing mechanism 22, and the other end is coaxially connected to the valve rod, and the connection manner includes, but is not limited to, threaded connection, key-slot fit, welding, interference fit, and the like.

Referring to fig. 4 and 6, as a preferred embodiment, a handle insertion hole 36 is formed at one end of the valve rod perpendicular to the axis of the valve rod, and the handle 4 is inserted into the handle insertion hole 36 through a strip-shaped handle through hole formed in the valve body 1. As an alternative means, the handle 4 can be manually stirred to control the opening and closing of the integrated electric water pipe valve.

Preferably, in the valve of the invention, the valve body 1 and the conjoined valve core 3 are both made of copper materials. Of course, the valve body 1 and the conjoined valve core 3 may also be made of other materials, such as the valve body 1 made of stainless steel, the conjoined valve core 3 made of ceramic material, and the like.

In another alternative embodiment of the present invention, an integrated electric valve as shown in fig. 7 and 8 is selected, which mainly comprises a valve body 1, an actuator 2 and a ball valve head 3.

A plurality of water pipe joints 11 are symmetrically arranged on the outer side of the valve body 1. A plurality of valve core seats 12 are arranged in the valve body 1, and the number of the valve core seats 12 is equal to the logarithm of the water pipe joints 11. Each valve core seat 12 is provided with a through hole which is communicated with a pair of water pipe joints 11.

The driver 2 is arranged on one side of the valve body 1 in the length direction and comprises a motor, a speed reducing mechanism 21 and a driving shaft 22, wherein one end of the driving shaft 22 is connected to an output shaft of the motor through the speed reducing mechanism 21, the other end of the driving shaft is connected with the ball valve head 3, and the connecting mode comprises but is not limited to threaded connection, key groove fit, welding, interference fit and the like.

A ball valve head 3 is mounted in each valve cartridge 12. The number of the ball valve heads 3 is the same as that of the valve core seats 12, and each ball valve head 3 is provided with a through ball valve hole 31. The ball valve head 3 is fixed with a driving shaft 22 connected with the driver 2, and the axis of the driving shaft 22 is vertical to the central axis of the ball valve hole 31.

In a preferred embodiment, the motor of the present invention is preferably a direct current motor. When a dc servo motor is used, the reduction mechanism 22 and the drive shaft 21 can be eliminated, and the output shaft of the dc servo motor is directly coaxially connected to the valve stem.

The preferred application of the automatic water leakage protection system is a house inlet pipeline with a heating water pipe, and 3 ball valve heads and 3 pairs of water pipe joints are preferably arranged and are respectively connected with a tap water pipe, a heating water supply pipe and a heating water return pipe. The conjoined ball valve is controlled by a motor to switch the 3 pipelines. When water leakage occurs in the indoor pipeline, the automatic water leakage protection system automatically controls or remotely controls the motor, and simultaneously closes the tap water pipe, the heating water supply pipe and the heating water return pipe. After the water leakage pipeline is checked and repaired, the motor is automatically controlled or remotely controlled to open the water pipe valve.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

The present invention is not limited to the above description of the embodiments, and those skilled in the art should, in light of the present disclosure, appreciate that many changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an automatic protection system leaks which characterized in that:

mainly comprises a detector, a signal emitter, a signal receiver, a main controller and a valve with a motor;

the detector is used for detecting surface water and comprises a power supply circuit, a standby power supply circuit and a trigger circuit;

the power circuit has an AC input terminal and a DC output terminal; the standby power supply circuit is used for storing electric energy from the power supply circuit; the trigger circuit is simultaneously connected with the power supply circuit and the standby power supply circuit and is provided with a probe for detecting surface water accumulation;

the signal emitter is connected with the output end of the trigger circuit;

the main controller is connected with the signal receiver, and the signal receiver is connected with the signal transmitter through a wireless link;

the receiver module is used for receiving the signal of the transmitter module and transmitting the signal to the main controller; the main controller controls the forward rotation or the reverse rotation of the motor according to different transmitting signals of the transmitter module;

the trigger circuit comprises a relay; the relay is a normally open type or normally closed type relay;

one end of a main coil of the relay is simultaneously connected with the power circuit and the standby power supply, and the other end of the main coil is vacant and used as a probe for detecting surface water;

one end of a secondary coil of the relay is simultaneously connected with the power circuit and the standby power supply, and the other end of the secondary coil is connected with a switch K in series and is connected with the transmitter module;

the movable contact of the switch K is controlled through a main coil of the relay;

the trigger circuit can detect surface water accumulation and is connected with the emitter module.

2. The automatic water leakage protection system according to claim 1, wherein:

one end of a main coil of the relay is connected with the power supply circuit through a resistor R1 and a resistor R2, and is connected with the standby power supply through a resistor R2;

one end of the secondary coil of the relay is connected with the power circuit, and is connected with the standby power supply through a resistor R1.

3. The automatic water leakage protection system according to claim 2, wherein:

4. The automatic water leakage protection system according to claim 2, wherein:

5. The automatic water leakage protection system according to claim 1, wherein:

the detector and the emitter module are integrated on a circuit board, are arranged in a wall hole below a socket panel or a switch panel, and connect the alternating current input end of the detector power supply circuit to a single-phase live wire.

6. The automatic water leakage protection system according to claim 1, wherein:

7. An integrated electric valve for the automatic protection system against water leakage according to any one of the preceding claims 1 to 6, characterized in that:

mainly comprises a valve body, a driver and a conjoined valve core;

a plurality of water pipe joints are symmetrically arranged on the outer side of the valve body; a plurality of valve core seats are arranged in the valve body;

the conjoined valve core is arranged in a valve core seat in the valve body and comprises at least two ball valve heads which are arranged on the valve rod in series, and the number of the ball valve heads is equal to the number of pairs of the water pipe connectors;

the actuator is connected to the valve stem.

8. An integrated electric valve for the automatic protection system against water leakage according to any one of the preceding claims 1 to 6, characterized in that:

mainly comprises a valve body, a driver and a ball valve head;

a plurality of water pipe joints are symmetrically arranged on the outer side of the valve body;

a plurality of valve core seats are arranged in the valve body, and the number of the valve core seats is equal to the number of pairs of the water pipe joints;

the driver is arranged on one side of the valve body in the length direction and is connected with the ball valve head;

and one ball valve head is arranged in each valve core seat.

9. An integrated electrically operated valve according to claim 7 or 8 wherein:

the valve is provided with 3 ball valve heads and 3 pairs of water pipe connectors.