WO2022000372A1

WO2022000372A1 - Intelligent valve

Info

Publication number: WO2022000372A1
Application number: PCT/CN2020/099744
Authority: WO
Inventors: 李跃明
Original assignee: 杭州联和工具制造有限公司; 杭州巨星科技股份有限公司
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2022-01-06

Abstract

An intelligent valve (10), comprising: a pipeline (200) with a valve assembly (220), a housing (100) fixed on the pipeline (200), a power mechanism (500) and a control device (300) located in the housing (100), and a measurement device disposed on the pipeline (200). The power mechanism (500) is coupled to the valve assembly (220) and is capable of driving the valve assembly (220) to move, wherein the power mechanism (500) comprises a driving device (501). The measurement device is capable of measuring status information of a fluid, such as rate of flow, temperature, and pressure. The control device (300) comprises a communication module (305) and a control module (309), wherein the communication module (305) can receive a control instruction; and the control module (309) is respectively connected to the driving device (501) and the communication module (305), and can control the driving device (501) in response to the control instruction. The intelligent valve (10) can feed back, in real time, state information of a fluid, such as rate of flow, temperature and pressure, thereby facilitating a user in making a decision according to the state information, remotely controlling the adjustment of the usage amount of fluid flowing through a pipeline, and switching on and off the intelligent valve. In addition, leakage detection can be carried out, and the pipeline can be automatically closed in a timely manner, thereby preventing property loss and avoiding potential safety hazards.

Description

Smart valve

technical field

The invention relates to the technical field of valves, in particular to an intelligent valve.

Background technique

In daily life, the valve is the key device for the home to control the opening and closing of the water and gas circuits. Most of the valves currently in use are manually operated valves. If there is water leakage, air leakage, etc. in the home, and there is no one in the home, it will cause damage to property and cause safety hazards. Therefore, the intelligent valve with real-time monitoring function and capable of remote operation can well avoid the above-mentioned situation.

Therefore, those skilled in the art are devoted to developing an intelligent valve, which can monitor the state of the fluid and control the valve through remote operation, which is convenient for users to deal with abnormal situations such as water leakage and air leakage in a timely manner when no one is at home.

SUMMARY OF THE INVENTION

In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide an intelligent valve, which can monitor the state of the fluid and control the valve through remote operation.

To achieve the above purpose, the present invention provides an intelligent valve, comprising:

Pipes with valve assemblies;

a shell, fixed on the pipe;

a power mechanism located in the housing, the power mechanism is coupled with the valve assembly, the power mechanism is configured to drive the valve assembly to move; wherein the power mechanism includes a driving device;

a detection device provided on the pipeline, the detection device is configured to be able to detect the state information of the fluid;

A control device located in the housing, the control device includes a communication module and a control module, wherein the communication module is configured to receive control instructions; the control module is respectively connected with the driving device and the communication module , the control module is configured to be able to control the drive device in response to the control command.

In some embodiments, optionally, the detection device includes at least two flow sensors for measuring the flow of the fluid flowing through the smart valve.

In some embodiments, optionally, the detection device further includes a temperature sensor and a pressure sensor, the temperature sensor is used to measure the temperature of the fluid, and the pressure sensor is used to measure the fluid flowing through the pipeline time pressure.

In some embodiments, optionally, the at least two flow sensors include a first flow sensor and a second flow sensor, the valve assembly includes a valve in the conduit, the first flow sensor and the The second flow sensors are located on both sides of the valve, respectively.

In some embodiments, optionally, the first flow sensor is a turbine-type flow sensor for measuring the flow of the fluid flowing into the smart valve; the first flow sensor comprises a flow sensor disposed in the pipeline The turbine mechanism and the first induction device arranged on the outer wall of the pipe.

In some embodiments, optionally, the second flow sensor is used to measure the flow of the fluid flowing out of the smart valve, including:

a fixed wheel, which is fixed in the pipeline, and is provided with a plurality of through holes for the fluid to pass through;

a stopper configured to move in the direction of flow of the fluid when subjected to pressure due to the flow of the fluid;

a sliding shaft, one end of the sliding shaft is connected with the block, the other end of the sliding shaft passes through the fixed wheel, and the sliding shaft is configured to be able to move together with the block;

a magnetic object, the magnetic object is sleeved on the sliding shaft, and the magnetic object is configured to be able to move together with the block;

A second inductive device, the second inductive device is disposed on the outer wall of the pipe, the second inductive device is configured to be able to sense changes in the magnetic field of the magnetic object.

In some embodiments, optionally, the second flow sensor further includes an elastic element disposed between the fixed wheel and the magnetic object and configured to be able to apply on the magnetic object An elastic force causes the magnetic object and the stopper to move away from the fixed wheel.

In some embodiments, optionally, the stopper has a first state and a second state, wherein when the stopper is in the first state, there is a gap between the stopper and the inner wall of the pipe a gap for the fluid to pass through; the fluid flows from the gap to the through hole, and the cross-sectional area of the gap along the radial direction of the pipe is S≥the length of the plurality of through holes along the pipe Radial cross-sectional area S'; when the stopper is in the second state, the stopper is in contact with the inner wall of the pipe.

In some embodiments, optionally, a fitting portion is provided on the inner wall of the pipe, and when the stopper is in the second state, the stopper is located at the fitting portion.

In some embodiments, optionally, a sloped portion is further provided on the inner wall of the pipe, and the sloped portion is located on one side of the fitting portion along the flow direction of the fluid and adjacent to the Matching Department.

In some embodiments, optionally, each of the plurality of through holes is cylindrical or waist-shaped.

In some embodiments, optionally, the power mechanism further includes a transmission device, the driving device is connected with the transmission device, the transmission device is coupled with the valve assembly, and the driving device passes through the transmission device to drive the valve assembly to move.

In some embodiments, optionally, the valve assembly includes a valve rotating shaft, the valve rotating shaft extends from the pipeline to a direction away from the pipeline; the transmission device includes a first drive device connected to the driving device. A driving gear, a first driven gear fixed on the valve rotating shaft, and a second driven gear, the first driven gear drives the first driven gear to move through the second driven gear.

In some embodiments, optionally, the smart valve further includes a first trigger device and a second trigger device, both the first trigger device and the second trigger device are connected to the control device, and the first trigger device and the second trigger device are both connected to the control device. When a trigger device and the second trigger device are configured to be triggered, the drive device stops moving; a trigger member is provided on the end of the valve shaft away from the pipeline, and the trigger member is configured to: when When the valve assembly moves to the open position, the trigger member contacts and triggers the first trigger device; when the valve assembly moves to the closed position, the trigger member contacts and triggers the second trigger device.

In some embodiments, optionally, the power mechanism further includes a manual drive mechanism for manually operating to control the valve assembly; the manual drive mechanism is connected to the transmission device and driven by the transmission device The valve assembly moves.

In some embodiments, optionally, the manual drive mechanism includes a pull shaft, the transmission device further includes a second drive gear, the second drive gear is fixed on the pull shaft, and the pull shaft is configured In order to move under the action of external force, the second driving gear is engaged with or disengaged from the second driven gear.

In some embodiments, optionally, the manual drive mechanism further includes a limiting device for limiting the position of the pulling shaft; the limiting device includes a retaining spring, a first retaining slot and a second retaining slot; The first card slot and the second card slot are both arranged on the pull shaft and can be matched with the circlip; the limiting device is configured to: when the circlip is in contact with the first card When the groove is matched, the second driving gear is engaged with the second driven gear; when the retaining spring is matched with the second locking groove, the second driving gear is separated from the second driven gear .

In some embodiments, optionally, the housing includes a first housing, a first bracket and a third bracket, and the valve assembly is provided with a valve seat, wherein:

the first housing is connected to the first bracket and is enclosed with the first bracket to form a first accommodating cavity;

Both the third bracket and the valve seat are located on the opposite side of the first bracket from the first housing, the third bracket is connected to the first bracket, and the valve seat is connected to the first bracket. three brackets;

Two ends of the first bracket along the length direction of the pipe are respectively provided with support parts, and the support parts are connected to the pipe.

In some embodiments, optionally, the casing further includes a second casing, the second casing is located on the side of the first bracket facing the pipe, the second casing is along the The length direction of the pipeline is provided with a groove matching the outline of the pipeline; the second shell is connected to the first bracket, so as to wrap at least part of the pipeline between the second shell and the into the cavity between the first brackets.

In some embodiments, optionally, the housing further includes a second bracket and a third housing located in the first accommodating cavity; the second bracket is connected to the first bracket and is connected to the first bracket. the first bracket is enclosed to form a second accommodating cavity; the third housing is connected to the first bracket and enclosed with the second bracket to form a third accommodating cavity; the control device and the drive The devices are all arranged in the third accommodating cavity.

The intelligent valve provided by the present invention has the following technical effects:

1. The present invention can monitor various states of the fluid in real time by setting up multiple flow sensors, temperature sensors, pressure sensors and other detection devices, which is convenient for users to make decisions and set different working modes, such as opening the valve, closing the valve, controlling the dosage, etc. ;

2. Users can remotely control the intelligent valve through the network, so as to deal with the abnormality of the fluid pipeline in time, or automatically close the pipeline when serious leakage occurs, to avoid property loss and safety hazards; at the same time, the intelligent valve can detect The various status information of the fluid is sent to the user terminal, which is convenient for the user to view the fluid status in real time;

3. By setting a large flow detection sensor and a small flow detection sensor and detecting the flow into the valve and the flow out of the valve respectively, not only can the flow information be accurately detected, the detection sensitivity can be improved, but also whether there is a valve that cannot be completely detected. Closure of situations that result in minute flow rates to detect and prevent leaks in a timely manner.

The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present invention.

Description of drawings

1 is a schematic structural diagram of an intelligent valve of a preferred embodiment of the present invention;

Fig. 2 is the exploded schematic diagram of the intelligent valve of Fig. 1;

Fig. 3 is the side view of Fig. 1;

Fig. 4 is the sectional view of the direction I-I in Fig. 3;

Fig. 5 is the transmission schematic diagram of the transmission device;

Figure 6 is a partial schematic view of the transmission;

Fig. 7 is the assembly schematic diagram of the drive device;

Fig. 8 is the front view of the intelligent valve in Fig. 1;

Fig. 9 is the sectional view of VI-VI direction in Fig. 8;

Figure 10 is a sectional view in the direction of VII-VII in Figure 8;

Fig. 11 is a sectional view of the direction II-II in Fig. 8;

Fig. 12 is the sectional view of III-III direction in Fig. 8;

Fig. 13 is the sectional view of IV-IV direction in Fig. 8;

Fig. 14 is a sectional view in the direction of V-V in Fig. 8;

Fig. 15 is the pipeline schematic diagram in Fig. 2;

Fig. 16 is a sectional view in the direction of VIII-VIII in Fig. 15;

17 is a schematic structural diagram of a second flow sensor;

FIG. 18 is a schematic structural diagram of an embodiment of the fixed wheel of the second flow sensor;

19 is a schematic structural diagram of another embodiment of the fixed wheel of the second flow sensor;

Figure 20 is a schematic diagram of the stopper of the second flow sensor in the open position;

FIG. 21 is a schematic diagram of the functional structure of the control device.

Among them, 10-smart valve, 100-shell, 101-logo, 110-first shell, 111-first accommodating cavity, 120-second shell, 121-fourth accommodating cavity, 122-second Arc-shaped groove, 123-hook, 130-third shell, 131-third accommodating cavity, 132-seal ring, 140-first bracket, 141-support part, 142-first arc-shaped groove, 143-first side wall, 144-concave area, 145-second accommodating cavity, 150-second bracket, 160-third bracket;

200-Pipe, 201-Inlet, 202-Outlet, 203-Valve, 204-Valve shaft, 2041-End, 205-Trigger, 206-Valve seat, 207-First groove, 208-Pipe inner wall, 209-bevel part, 210-matching part, 211-clearance, 212-outer wall of pipeline, 220-valve assembly;

300-control device, 301-power cord, 302-first travel switch, 303-second travel switch, 304-power module, 305-communication module, 306-data acquisition module, 307-user terminal, 308-leakage detection device , 309-control module;

400-control panel, 401-button, 402-indicator, 403 transmission line channel, 404-cap, 405-gasket, 406-control panel shell, 407-button cap, 408-indicator shell;

500-power mechanism, 501-drive device, 520-transmission device, 521-first driven gear, 522-first driving gear, 523-second driving gear, 524-second driven gear, 540-manual drive mechanism , 541-pull shaft, 542-knob, 543-circle, 544-first slot, 545-second slot, 546-pin;

610-first flow sensor, 611-first induction device, 612-turbine mechanism, 620-second flow sensor, 621-second induction device, 622-stop, 623-slide shaft, 624-magnetic object, 625- Fixed wheel, 626 - elastic element, 627 - through hole, 630 - temperature sensor, 640 - pressure sensor.

detailed description

The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

In the drawings, structurally identical components are denoted by the same numerals, and structurally or functionally similar components are denoted by like numerals throughout. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thicknesses of components are appropriately exaggerated in some places in the drawings.

An embodiment of the present invention provides an intelligent valve 10 that can be applied in a pipeline for fluid to pass through and control the opening and closing of the pipeline. The fluid can be water or other liquids, gases and other fluids, especially domestic water, gas, and natural gas for domestic use. The smart valve 10 can detect fluid state information such as fluid flow, pressure, and temperature in the pipeline, and send the information to the user terminal 307 through the network; it can also receive control commands from the user terminal 307 to open or close the pipeline; It can also automatically close the line when a fluid leak is detected, preventing further fluid leakage.

As shown in FIGS. 1 and 2 , the smart valve 10 in this embodiment includes a housing 100 , a pipeline 200 with a valve assembly 220 , a control device 300 and a power mechanism 500 . The control device 300 and the power mechanism 500 are both arranged in the casing 100 . The casing 100 is fixed on the pipe 200 . The pipeline 200 is installed in the pipeline through which the fluid passes. The pipeline 200 has an inlet end 201 and an outlet end 202 in the direction of fluid flow. The fluid enters the intelligent valve 10 from the inlet end 201 of the pipeline 200, and flows out of the intelligent valve 10 from the outlet end 202 of the pipeline 200. Valve 10. 2 and 4, the valve assembly 220 includes a valve 203, a valve seat 206 and a valve shaft 204, wherein the valve 203 is arranged in the pipeline 200, between the inlet end 201 and the outlet end 202, by controlling the opening and closing of the valve 203 closed to realize the opening and closing of the pipeline; the valve seat 206 is arranged on the pipeline 200 for connecting with the casing 100; the valve shaft 204 is connected to the valve 20 and protrudes from the pipeline 200 in a direction away from the pipeline 200, used for It is coupled with the power mechanism 500 . The power mechanism 500 is coupled with the valve assembly 220 , specifically, the power mechanism 500 is coupled with the valve shaft 204 , and drives the valve 203 to move by driving the valve shaft 204 to open and close the valve 203 . The power mechanism 500 includes a driving device 501 , and the driving device 501 can drive the valve 203 to move, so as to realize the opening and closing of the valve 203 . The control device 300 is at least one circuit board disposed in the housing 100. In this embodiment, the control device 300 is set as a circuit board, and different functions of the control device 300 can also be set on different circuit boards according to actual needs . Referring to FIG. 21 , the control device 300 includes a control module 309 for controlling the driving device 501 and a communication module 305 for communicating with the outside world. The communication module 305 can communicate with the outside world, for example, with the user terminal 307 and the leak detection device 308 , and the communication module 305 receives the control command, the control module 309 then controls the drive device 501 in response to the control command to effect the opening and closing of the valve 203 . Referring to FIG. 2 and FIG. 4 , the smart valve 10 further includes a detection device, which is arranged on the pipeline 200 and can detect the state of the fluid, such as fluid state information such as flow rate, temperature, and pressure. The detection device is electrically connected to the control device 300 , and sends the collected fluid state information to the control device 300 , and the control device 300 can send the fluid state information to the user terminal 307 through the communication module 305 .

Referring to FIG. 4, the valve 203 is a shut-off valve for connecting or shutting off the fluid in the pipeline. In this embodiment, valve 203 is a ball valve. It should be understood that other types of shut-off valves can also be used in this embodiment, such as gate valves, shut-off valves, plug valves, butterfly valves, diaphragm valves, or other valves capable of connecting or shutting off fluid in the pipeline. The valve 203 can also be set as a valve for safety valve, regulating valve, check valve and other purposes according to actual needs. For example, in some application scenarios, the valve 203 can be set as a regulating valve only if the parameters such as the pressure and flow of the fluid need to be adjusted, or the valve 203 can be set as a check valve to prevent the backflow of the fluid.

On the smart valve 10 , there is a mark 101 indicating the direction of fluid flow. Referring to FIG. 1 , the mark 101 is provided on the housing 100 and is an arrow pointing from the inlet end 201 of the pipe 200 to the outlet end 202 .

The powertrain 500 also includes a transmission 520 . The driving device 501 is connected with the transmission device 520 , the transmission device 520 is coupled with the valve assembly 220 , and the driving device 501 drives the valve assembly 220 to move through the transmission device 520 . Specifically, as shown in FIG. 4 , the valve shaft 204 is connected with the valve 203 and extends from the pipe 200 to a direction away from the pipe 200 , and then cooperates with the transmission device 520 . The driving device 501 is connected with the transmission device 520, and the driving device 501 drives the valve shaft 204 to rotate through the transmission device 520, thereby driving the valve 203 to rotate. The transmission device 520 is used to convert the motion output by the driving device 501 into the motion of the valve 203 . For example, as shown in FIG. 4, in this embodiment, the valve 203 is a ball valve, which needs to be rotated to achieve normal operation, the driving device 501 is a motor, and the output motion is in the form of rotation, and the transmission device 520 can be configured as a gear drive, a belt In some embodiments, the motion form output by the drive device 501 is linear motion, for example, a pneumatic drive device is selected, the valve needs to be rotated to achieve normal operation, and the transmission device 520 can choose the form of a cam mechanism, a crank-slider mechanism, etc.; In some embodiments, the movement form output by the driving device 501 is rotation, and the valve needs to move in a straight line to achieve normal operation. Mechanism, worm gear, worm and other forms.

In this embodiment, the transmission device 520 is selected as a gear mechanism. 5 and 6 , the transmission device 520 includes a first driving gear 522 connected with the driving device 501 , a first driven gear 521 connected with the valve shaft 204 , and a plurality of second driven gears 524 . The first driving gear 522 is rotated by the driving device 501 . The first driven gear 521 is fixedly connected with the valve shaft 204 so as to drive the valve shaft 204 to rotate. The fixing method can be welding, bonding, threading, or the first driven gear 521 and the valve shaft 204 are integrally formed. The first driving gear 522 drives the first driven gear 521 to move through the second driven gear 524 . Specifically, the first driving gear 522 cooperates with a plurality of second driven gears 524 to transmit the motion to the first driven gear 521 , thereby driving the valve shaft 204 to rotate. The number of the second driven gears 524 can be set to one or more according to actual requirements.

As shown in FIG. 7 , the driving device 501 in this embodiment is a motor. In order to precisely control the motion stroke of the motor, a triggering device is provided on the control device 300. When the triggering device is triggered, the control module 309 of the control device 300 controls The motor stops moving. In this embodiment, the triggering device includes a first triggering device 302 and a second triggering device 303 , and both the first triggering device 302 and the second triggering device 303 are connected to the control device 300 . The first trigger device 302 and the second trigger device 3303 select travel switches. The end 2041 of the valve shaft 204 away from the pipeline 200 is provided with a trigger member 205, and the trigger member 205 can rotate together with the valve shaft 204. When the valve 203 rotates to the open position, the trigger member 205 contacts and triggers the first trigger device 302, The motor stops moving; when the valve rotates to the closed position, the triggering member 205 contacts and triggers the second triggering device 303 , and the motor stops moving. Referring to FIG. 7 , the trigger member 205 may be a protrusion fixed on the valve shaft 204 by a fastener. It should be understood that the trigger member 205 may also be a component protruding from the valve shaft 204 . It should also be understood that other triggering devices can also be used to replace the travel switch. For example, in some embodiments, the triggering device can select an optocoupler device, and the triggering member 205 blocks the optical path of the optocoupler device to realize the triggering function; in some embodiments Among them, the triggering device can be set as an angle sensor. After detecting that the motor rotates at a preset angle, the angle sensor sends a trigger signal to the control module 309 to control the motor to stop moving, so that the trigger member 205 is not required. The motion stroke of the valve 203 can also be accurately realized by using other types of motors. For example, the motor can be selected as a stepper motor or a servo motor, and the start and stop of the motor can be precisely controlled by setting a preset stroke, so as to open or close the valve. 203, the triggering device can be omitted.

8 and 9, the power mechanism 500 further includes a manual drive mechanism 540 for controlling the valve assembly 220 through manual manual operation. When manual operation is required, the manual drive mechanism 540 can be switched. The switching of the manual drive mechanism 540 can be realized by switching the driving element of the transmission device 520 . The manual drive mechanism 540 is connected to the transmission device 520 and drives the valve assembly 220 through the transmission device 520 . The manual drive mechanism 540 includes a pulling shaft 541, and the transmission device 520 includes a second driving gear 523. The second driving gear 523 is connected to the pulling shaft 541 by welding, bonding, screwing, etc. It is integrally formed with the pull shaft 541. The second driving gear 523 moves together with the pulling shaft 541 . When it is necessary to switch to the manual drive mechanism 540, the driving gear of the gear mechanism can be switched to the second driving gear 203 connected with the manual driving mechanism 540, and then through the meshing of the second driving gear 203 with the second driven gear 524 to achieve Rotation of the valve shaft 204 . Specifically, the pulling shaft 541 can move under the action of an external force, so that the second driving gear 523 and a second driven gear 524 are meshed or separated; in this embodiment, the pulling shaft 541 is pulled away from the pipeline 200 When reaching a certain position, the second driving gear 523 meshes with a second driven gear 524. At this time, the movement of the valve assembly 220 can be driven by rotating the pulling shaft 541, and the pulling shaft 541 is in the working position; When the direction close to the pipeline 200 is pushed to a certain position, the second driving gear 523 is separated from the second driven gear 524, the manual driving mechanism 540 no longer works, and the pulling shaft 541 is in the initial position.

In order to facilitate the operation, a knob 542 is provided at the end of the pulling shaft 541, and the knob 542 is fixed on the pulling shaft 541 through the pin shaft 546. When the pulling shaft 541 is in the working position, the knob 542 is rotated to drive the second driving gear 203 to rotate, The valve shaft 204 is driven to rotate through the second driven gear 524 .

In order to limit the position of the pulling shaft 541, the manual driving mechanism 540 further includes a limiting device. Referring to FIG. 10 , the limiting device is used to limit the position of the pull shaft 541 , and the limiting device includes an L-shaped retaining spring 543 , a first retaining slot 544 and a second retaining slot 545 , wherein the first retaining slot 544 and the second retaining slot 544 The card slots 545 are all arranged on the pull shaft 541 . When the retaining spring 543 is matched with the second retaining slot 545 , that is, the retaining spring 543 falls into the second retaining slot 545 , the pulling shaft is at the initial position. When the retaining spring 543 is matched with the first retaining slot 544 , that is, the retaining spring 543 falls into the first retaining slot 544 , the pulling shaft is in the working position. By the retaining spring 543, the pull shaft 541 can be locked at the current position until the external force is applied to change the position of the pull shaft 541. At the same time, through the cooperation of the retaining spring 543 with the first clamping slot 544 and the second clamping slot 545, the pulling shaft 541 can be accurately positioned at the working position and the initial position, which is more conducive to the operation.

It should be understood that, in some embodiments, the transmission device 520 may not be provided, but the driving device 501 is directly connected with the valve assembly 220, and the manual driving device 540 is also not provided.

The housing 100 is used to form the smart valve 10 into an integrated part, so that the structure of the smart valve 10 is more compact and has functions such as waterproof and dustproof. As shown in FIG. 2 , the housing 100 includes a first housing 110 , a first bracket 140 and a third bracket 160 . Referring to FIG. 4 , the first housing 110 is fixedly connected to the first bracket 140 , and a first accommodating cavity 111 is formed therebetween. The driving device 501 , the transmission device 520 , the control device 300 and other components are all arranged in the first accommodating cavity 111 . Inside the housing cavity 111 , the end of the pull shaft 541 on which the knob 542 is installed protrudes out of the first housing 110 , and the rest of the pull shaft 541 passes through the first housing 110 and enters the first accommodating cavity 111 . The first housing 110 and the first bracket 140 may be connected by fasteners, or may be connected by means of snaps, adhesives, or the like. Both the third bracket 160 and the valve seat 206 are located on the opposite side of the first bracket 140 from the first housing 110 . Specifically, the valve seat 206 and the wall of the pipeline 200 can be of an integral structure, the valve seat 206 is connected to the third bracket 160, the third bracket 160 is connected to the first bracket 140, and the connection methods can be fasteners, snaps, bonding, etc. The first bracket 140 and the third bracket 160 are both provided with through holes, so that the valve shaft 204 can pass through the through holes to cooperate with the transmission device 520 . Meanwhile, referring to FIG. 2 , two ends of the first bracket 140 along the length direction of the pipe 200 are respectively provided with support parts 141 , and the support parts 141 are connected to the pipe 200 . One end of the support portion 141 has a shape matching the outer wall 212 of the pipe 200. In this embodiment, the pipe 200 is cylindrical, and one end of the support portion 141 has a first arc-shaped groove 142 matching the cylindrical shape. The outer wall 212 of 200 is provided with a first groove 207 for receiving the support portion 141 . The other end of the support portion 141 is fixed to the first bracket 140 , which can be fixed by means of buckles, adhesives, fasteners, etc., or the support portion 141 and the first bracket 140 can be integrally formed. In this embodiment, a card is used. The support portion 141 is connected to the first bracket in the manner of a buckle.

As shown in FIG. 2 and FIG. 4 , the housing 100 further includes a third housing 130 and a second bracket 150 , and both the third housing 130 and the second bracket 150 are disposed in the first accommodating cavity 111 . The second bracket 150 is connected to the first bracket 140 and forms a second accommodating cavity 145 with the first bracket 140 . Specifically, a first side wall 143 is protruded on the side of the first bracket 140 facing the second bracket 150 , the first side wall 143 encloses a concave area 144 , and the second bracket 150 is fixed on the first bracket 140 The second accommodating cavity 145 is formed, and the second bracket 150 is the top cover of the second accommodating cavity 145 . The transmission device 520 may be arranged in the second accommodating cavity 145 . At the same time, the third housing 130 is also connected to the first side wall 143 of the first bracket 140 , and a third accommodating cavity 131 is formed between the third housing 130 and the second bracket 150 , the control device 300 and the driving device 501 It is located in the third accommodating cavity 131 , wherein the driving device 501 and the control device 300 are fixed on the second bracket 150 , and the output shaft of the driving device 501 is connected to the transmission device 520 through the second bracket 150 . In order to improve the waterproof performance, the third housing 130 and the second bracket 150 are further provided with a sealing ring 132 to improve the waterproof performance of the third accommodating cavity 131 and protect the electronic components from damage.

Referring to FIGS. 1 , 2 and 14 , the casing 100 further includes a second casing 120 for wrapping the pipe 200 . The second shell 120 is located on the side of the first bracket 140 facing the pipe 200 , and the two ends of the second shell 120 along the direction of the pipe 200 are respectively provided with second arc-shaped grooves 122 , and the shape of the second arc-shaped grooves 122 is the same as The contour of the pipe 200 is matched with the first arc-shaped groove 142 of the support part 141 and is disposed in the first groove 207 of the pipe 200 (see FIG. 4 ), and is matched with the first arc-shaped groove 142 to form a supply for the pipe. 200 through holes. At the same time, the second housing 120 can be connected to the first bracket 140 through the hooks 123 , and can also be connected to the first bracket 140 through fasteners, bonding, or the like. In this way, the second housing 120, the first bracket 140 and the support portion 141 are enclosed to form a fourth accommodating cavity 121, and the pipe 200 passes through the fourth accommodating cavity 121, so that the inlet end 201 and the outlet end 202 of the pipe 200 Outside the fourth accommodating cavity 121 , the rest of the pipeline 200 is located in the fourth accommodating cavity 121 . By arranging the second housing 120, the outer surfaces of the second housing 120 and the first housing 110 constitute the outer surface of the smart valve 10, so that most of the smart valve 10 is protected in the housing 100, and the smart valve can be effectively extended. 10203 service life.

The smart valve 10 can detect the fluid state in the pipeline through the detection device. Referring to FIG. 2 , FIG. 15 and FIG. 16 , in this embodiment, the detection device includes a flow sensor, a temperature sensor 630 and a pressure sensor 640 . The flow sensor is used to measure the flow rate of the fluid flowing through the smart valve 10 , the temperature sensor 630 is used to measure the temperature of the fluid, and the pressure sensor 640 is used to measure the pressure of the fluid flowing through the pipeline 200 . It should be understood that other sensors, such as sensors for detecting acidity and alkalinity, may also be provided according to the fluid state information that actually needs to be detected.

The detection devices are all arranged on the pipeline 200 . The temperature sensor 630 and the pressure sensor 640 are arranged on the outer wall 212 of the pipeline 200 , and a through hole is formed on the outer wall 212 of the pipeline 200 , and the temperature sensor 630 and the pressure sensor 640 are installed in the through hole. A temperature sensor 630 and a pressure sensor 640 are located between the outlet end 202 and the valve 203 . It should be understood that the positions of the temperature sensor 630 and the pressure sensor 640 can be arranged according to actual needs, and are not limited to being located between the outlet end 202 and the valve 203 here.

Flow detection is an important function of the smart valve 10 . In order to improve the accuracy of the flow rate detection, especially in order to be able to detect a small flow rate, in this embodiment, a first flow rate sensor 610 and a second flow rate sensor 620 are provided. The first flow sensor 610 is arranged on the side of the pipeline 200 close to the inlet end 201 , and the second flow sensor 620 is arranged on the side of the pipeline 200 near the outlet end 202 , namely the first flow sensor 610 and the second flow sensor 620 They are respectively arranged on both sides of the valve 203 . The first flow sensor 610 is a large flow sensor, used to detect the flow of the fluid flowing into the smart valve 10, that is, the flow of the fluid entering from the inlet end of the pipeline 200; the second flow sensor 620 is a small flow sensor, used to detect The flow rate of the fluid flowing out of the valve 10 is the flow rate of the fluid flowing out from the outlet end of the pipe 200 . It should be understood that more than two flow sensors may also be provided to further improve the flow detection accuracy.

Preferably, referring to FIG. 2 and FIG. 4 , the first flow sensor 610 is a turbine-type flow sensor. The turbine-type flow sensor can measure the flow of gas and liquid. It has high measurement accuracy, can measure the pulsating flow, and outputs a pulse signal with strong anti-interference ability. The first flow sensor 610 includes a first sensing device 611 disposed on the outer wall 212 of the pipe 200 and a turbine mechanism 612 located in the pipe 200 . The second flow sensor 620 is a magnetic induction sliding flow sensor. Specifically, as shown in FIGS. 16 and 17 , the second flow sensor 620 includes a stopper 622 , a magnetic object 624 , a sliding shaft 623 , a fixed wheel 625 and a second sensing device 621 . The fixing wheel 625 is disposed opposite to the valve 203 and fixed on the inner wall 208 of the pipeline, which can be fixed by means of threads, or by means of welding or bonding. The stopper 622 is installed between the fixed wheel 625 and the valve 203, and is fixed on the first end of the sliding shaft 623. When the fluid flows through the stopper 622, the fluid flow generates pressure and acts on the stopper 622, which can push the stopper 622 Move in the direction of fluid flow. The second end of the sliding shaft 623 slidably passes through the fixed wheel 625 , and when the block 622 moves, the sliding shaft 623 moves together with the block 622 . The magnetic object 624 is sleeved on the sliding shaft 623, preferably close to the stopper 622. The magnetic object 624 is preferably in the shape of a ring, and the outer edge of the magnetic object 624 does not exceed the outer edge of the stopper 622 to avoid affecting the fluid flow. . When the stopper 622 is subjected to fluid pressure, the magnetic object 624 can be pushed to move together with the stopper 622 . The second sensing device 621 is disposed on the outer wall 212 of the pipe 200 , and can detect the flow change by sensing the magnetic change of the magnetic object 624 . An elastic element 626 is also arranged between the magnetic object 624 and the fixed wheel 625 . In the absence of fluid pressure, the elastic element 626 exerts elastic force, so that the magnetic object 624 and the stopper 622 move away from the fixed wheel 625 . The elastic element 626 is preferably a spring sleeved on the sliding shaft 623, and an elastic element such as an elastic sheet can also be selected.

Stop 622 has a first state and a second state. In the absence of fluid pressure, the stopper 622 is in the initial position, that is, the stopper 622 is in the second state. At this time, the stopper 622 is in contact with the inner wall 208 of the pipeline, that is, the gap between the stopper 622 and the inner wall 208 of the pipeline is substantially zero. Referring to Fig. 20, when the fluid passes through, under the influence of the fluid pressure, the stopper 622 moves to the open position in the direction close to the fixed wheel 625, that is, the stopper 622 is in the first state, at this time, the stopper 622 and the pipe inner wall 208 A gap 211 is formed therebetween for fluid to pass through. The fixed wheel 625 is provided with a through hole 627 which penetrates through the fixed wheel 625 along the fluid flow direction, for allowing the fluid to pass through the tube 625 .

In actual use, when the fluid passes through the second flow sensor 620 , the flow inlet of the second flow sensor 620 (ie the gap 211 between the stopper 622 and the inner wall 208 of the pipe) and the flow outlet (ie the gap on the fixed wheel 625 ) The through hole 627) needs to be balanced under ideal conditions. However, if the cross-section of the through hole 627 on the fixed wheel 625 is small, a fluid backflow will occur, and then the stopper 622 will not move due to resistance, so that the detection fails. Therefore, in order to ensure the accurate operation of the detection device, the area of the fluid inflow port should be greater than or equal to the area of the fluid outflow port. As shown in FIG. 20 , the area of the fluid inflow port is S, that is, when the stopper 622 is in the open position, the cross-sectional area of the gap 211 between the stopper 622 and the inner wall 208 of the pipe is S, and the area of the through hole 627 of the fixed wheel 625 is S ', where S≥S'.

As shown in FIG. 18 , the through holes 627 on the fixed wheel 625 include a plurality of cylindrical holes, which are evenly distributed along the circumferential direction of the fixed wheel 625 , and the specific number can be set according to actual needs. for 6. The six cylindrical holes have the same cross-sectional area and the radius is r, so the area of the through hole 627 is S'=6*πr ² . Assuming that the radius of the inner wall 208 of the pipe is R1 and the radius of the stopper 622 is R2, the cross-sectional area of the gap 211 is S=πR1 ² −πR2 ² , and S≧S′. It should be understood that the shape of the through hole 627 can also be set to other shapes, such as the racetrack circle shown in FIG. 19 , the cross section of which is waist-shaped.

As shown in FIG. 20 , when the stopper 622 is in the initial position, the gap between the stopper 622 and the inner wall 208 of the pipeline is substantially zero; when the stopper 622 is subjected to fluid pressure and is in the first state, there is a gap 211 between the stopper 622 and the inner wall 208 of the pipeline. In order to ensure that the size of the gap 211 is related to the fluid pressure, the inner wall 208 of the pipeline is provided with a matching portion 210. When the block 622 is in the second state, the block 622 is located at the matching portion 210, and the size of the matching portion 210 is basically the same as that of the block 622. Therefore, the stopper 622 is fitted with the inner wall 208 of the pipe, and the passage of the fluid can be blocked.

The inner wall 208 of the pipe is also provided with a sloped portion 209 , and the sloped portion 209 is located on one side of the fitting portion 210 along the fluid flow direction and is adjacent to the fitting portion 210 . The diameter of the slope portion 209 gradually increases along the fluid flow direction. When the stopper 622 is subjected to fluid pressure and moves along the fluid flow direction, the stopper 622 gradually disengages from the fitting portion 210 and enters the sloped portion 209. Since the diameter of the sloped portion 209 is larger than the diameter of the stopper 622, the stopper 622 and the inner wall of the pipeline are formed. A gap 211 is formed between the 208, and as the fluid pressure increases, the distance that the block 622 moves along the fluid direction increases, and the gap 211 between the block 622 and the inclined surface 209 also increases, thereby ensuring the flow of flow. The balance between the inlet and the flow outlet. When the block 622 continues to move and is separated from the inclined surface 209, the cross-sectional area of the gap 211 between the block 622 and the inner wall 208 of the pipe is S, which is greater than or equal to the area S' of the through hole 627 of the fixed wheel 625.

When the valve 203 is closed, the stopper 622 is no longer subjected to fluid pressure, and under the action of the elastic element 626 , the stopper 622 moves toward the matching portion 210 . In order to allow the block 622 to enter the matching portion 210 smoothly, a chamfer 6211 is further provided on the edge of the side of the block 622 facing the matching portion 210 .

The second flow sensor 620 adopts a magnetic induction sliding sensor, which can accurately measure the change of flow. For example, if the valve 203 is faulty and cannot be fully closed, thereby forming a small flow, it can also be measured by the second flow sensor 620 . Therefore, the flow measurement accuracy is greatly improved by disposing the second flow sensor 620 .

FIG. 21 is a functional schematic diagram of the control device 300 . The control device 300 includes a control module 309 , a communication module 305 , a power supply module 304 and a data acquisition module 306 , and can implement various functions such as power supply management, communication, collection of fluid state information, and control of the driving device 501 . The communication module 305 and the data acquisition module 306 are respectively connected with the control module 309 . The communication module 305 communicates with the outside world, for example, with the user terminal 307 and the leak detection device 308; the data acquisition module 306 is connected with the detection device, and transmits the fluid state information collected by the detection device to the control module 309; The control device 300 performs power supply management.

The smart valve 10 can be powered in a variety of ways, such as using a battery, connecting to a household AC outlet through a transformer. The first housing 110 and the third housing 130 are provided with through holes for the power cables 301 to pass through. The power cables 301 enter the third accommodating cavity 131 from the through holes and are connected to the control device 300 .

The smart valve 10 can communicate with the user terminal 307 through various communication methods. For example, the communication module 305 is provided with a wireless communication method or a wired communication method. The communication module 305 can also communicate with the leak detection device 308 to obtain leak information. The leak detection device 308 may be a water immersion sensor disposed at the fluid outlet of the pipeline, and communicates with the smart valve 10 by means of Bluetooth, wlan, ZigBee, zwave, or the like.

As shown in FIG. 2 and FIG. 4 , a button 401 and a display device are arranged on the first housing 110 , which are used to establish a communication connection between the intelligent valve 10 and the outside world, and feedback the connection status. As shown in FIG. 2 , a control panel 400 is provided on the first housing 110, the control panel 400 includes buttons 401 and indicator lights 402, and the control panel 400 is connected to the control device 300 through a transmission line. The body 130 is provided with a transmission line channel 403, and the transmission line connects the control panel 400 and the control device 300 through the transmission line channel 403; the cap 404 is connected to the third housing 130 by screws, and the middle of the cap 404 is a through hole, which is connected to the third housing. The vias in body 130 together form transmission line channel 403 . A gasket 405 is also disposed between the cap 404 and the third housing 130 . A key 401 on the control panel 400 is a "set" key 401, which is connected to the operation terminal by pressing the key 401, and is connected to the network through the terminal setting parameters. The display device is an indicator light 402 arranged on both sides of the button 401 to indicate the connection state. In order to better protect the control panel 400, the control panel 400 is covered with a control panel case 406, and the control panel case 406 is provided with a key cap 407 covering the keys 401 and an indicator case 408 covering the indicator light 402 ( See Figure 3). The control panel 400 is arranged in the first accommodating cavity 111 and is fixed on the inner wall of the first housing 110 by the control panel shell 406 and fasteners. hole. It should be understood that a touch screen can also be used to replace the keys 401 and/or indicator lights 402, and operations can be performed by setting virtual keys 401 on the touch screen, and at the same time, information such as connection status, fluid status, and the like are displayed on the touch screen.

The user terminal 307 can be a mobile terminal or a PC terminal, and the user terminal 307 can display information such as flow, pressure, temperature and other information in real time, as well as statistical fluid consumption, and through the user terminal 307, can issue instructions to the smart valve 10, such as opening, closing , Adjust the flow size, etc.

The smart valve 10 can be set to a variety of working modes. By setting the settings on the user terminal 307, the smart valve 10 can work in different working modes. The working modes of the smart valve 10 include health mode, home mode, and home mode. In the health mode, the smart valve 10 can automatically check for water leakage and air leakage. In the away-from-home mode, if the smart valve 10 detects any leakage, it will automatically close the valve and send an alarm. In the home mode, the smart valve 10 will send an alarm when it detects a leak or other abnormality. The smart valve 10 also has the function of adjusting the amount of flow and fluid. By setting the target of the amount of fluid, the smart valve 10 automatically sets the amount of fluid according to the target, which can be set in units of days, weeks, and months. When the amount exceeds the standard, it can be prompted on the user terminal 307 Excessive usage.

The intelligent valve 10 is provided with an alarm device, and the alarm device is a buzzer (not shown) set on the control device 300. When the intelligent valve 10 has an abnormality, an alarm sound is issued, for example, the valve cannot be opened and closed normally, and the valve cannot be completely closed. Closed, unable to communicate, abnormal traffic, etc. The specific situation that needs to be alarmed can be set according to actual needs.

The preferred embodiments of the present invention have been described in detail above. It should be understood that many modifications and changes can be made according to the concept of the present invention by those skilled in the art without creative efforts. Therefore, any technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the prior art according to the concept of the present invention shall fall within the protection scope determined by the claims.

Claims

An intelligent valve, characterized in that it includes:

Pipes with valve assemblies;

a shell, fixed on the pipe;

a power mechanism located in the housing, the power mechanism is coupled with the valve assembly, the power mechanism is configured to drive the valve assembly to move; wherein the power mechanism includes a driving device;

a detection device provided on the pipeline, the detection device is configured to be able to detect the state information of the fluid;

A control device located in the housing, the control device includes a communication module and a control module, wherein the communication module is configured to receive control instructions; the control module is respectively connected with the driving device and the communication module , the control module is configured to be able to control the drive device in response to the control command.
The smart valve of claim 1, wherein the detection device comprises at least two flow sensors for measuring the flow rate of the fluid flowing through the smart valve.
The intelligent valve of claim 2, wherein the detection device further comprises a temperature sensor and a pressure sensor, the temperature sensor is used to measure the temperature of the fluid, and the pressure sensor is used to measure the fluid flow pressure through the pipeline.
3. The smart valve of claim 2, wherein the at least two flow sensors include a first flow sensor and a second flow sensor, the valve assembly includes a valve in the pipeline, the first flow The sensor and the second flow sensor are located on both sides of the valve, respectively.
The smart valve of claim 4, wherein the first flow sensor is a turbine-type flow sensor for measuring the flow of the fluid flowing into the smart valve; the first flow sensor comprises a A turbine mechanism in the duct and a first induction device disposed on the outer wall of the duct.
The smart valve of claim 4, wherein the second flow sensor is used to measure the flow of the fluid flowing out of the smart valve, comprising:

a fixed wheel, which is fixed in the pipeline, and is provided with a plurality of through holes for the fluid to pass through;

a stopper configured to move in the direction of flow of the fluid when subjected to pressure due to the flow of the fluid;

a sliding shaft, one end of the sliding shaft is connected with the block, the other end of the sliding shaft passes through the fixed wheel, and the sliding shaft is configured to be able to move together with the block;

a magnetic object, the magnetic object is sleeved on the sliding shaft, and the magnetic object is configured to be able to move together with the block;

A second inductive device, the second inductive device is disposed on the outer wall of the pipe, the second inductive device is configured to be able to sense changes in the magnetic field of the magnetic object.
The intelligent valve of claim 6, wherein the second flow sensor further comprises an elastic element, the elastic element is disposed between the fixed wheel and the magnetic object and is configured to be able to An elastic force is exerted on the magnetic object, so that the magnetic object and the stopper move in a direction away from the fixed wheel.
The intelligent valve according to claim 7, wherein the stopper has a first state and a second state, wherein when the stopper is in the first state, the contact between the stopper and the pipeline There is a gap between the inner walls for the fluid to pass through; the fluid flows from the gap to the through hole, and the cross-sectional area of the gap along the radial direction of the pipe is S ≥ the plurality of through holes along the The radial cross-sectional area S' of the pipe; when the block is in the second state, the block is in contact with the inner wall of the pipe.
The intelligent valve according to claim 8, characterized in that, a fitting portion is provided on the inner wall of the pipeline, and when the stopper is in the second state, the stopper is located at the fitting portion.
The intelligent valve according to claim 9, characterized in that, the inner wall of the pipeline is further provided with a sloped portion, and the sloped portion is located on one side of the matching portion along the flow direction of the fluid and adjacent to the matching portion.
The intelligent valve of claim 6, wherein each of the plurality of through holes is cylindrical or waist-shaped.
The intelligent valve according to claim 1, wherein the power mechanism further comprises a transmission device, the driving device is connected with the transmission device, the transmission device is coupled with the valve assembly, and the driving device passes through the The transmission drives the valve assembly to move.
The intelligent valve according to claim 12, wherein the valve assembly comprises a valve rotating shaft, and the valve rotating shaft extends from the pipe to a direction away from the pipe; the transmission device includes a connection with the driving device The connected first driving gear, the first driven gear and the second driven gear fixed on the valve shaft, the first driving gear drives the first driven gear to move through the second driven gear .
The smart valve according to claim 13, wherein the smart valve further comprises a first trigger device and a second trigger device, and the first trigger device and the second trigger device are both connected to the control device , the first trigger device and the second trigger device are configured to be triggered, the drive device stops moving; the end of the valve shaft away from the pipeline is provided with a trigger member, the trigger member is It is configured that: when the valve assembly moves to the open position, the trigger member contacts and triggers the first trigger device; when the valve assembly moves to the closed position, the trigger member contacts and triggers the second trigger device trigger device.
The intelligent valve of claim 12, wherein the power mechanism further comprises a manual drive mechanism for manual operation to control the valve assembly; the manual drive mechanism is connected with the transmission device and passes through the A transmission drives the valve assembly to move.
The intelligent valve according to claim 15, wherein the manual drive mechanism comprises a pull shaft, the transmission device further comprises a second driving gear, the second driving gear is fixed on the pull shaft, the The pull shaft is configured to move under the action of an external force, thereby engaging or disengaging the second driving gear and the second driven gear.
The intelligent valve according to claim 16, wherein the manual drive mechanism further comprises a limiting device for limiting the position of the pulling shaft; the limiting device comprises a retaining spring, a first retaining groove and a first retaining device. Two card slots; the first card slot and the second card slot are both arranged on the pull shaft and can be matched with the circlip; the limiting device is configured to: when the circlip is in contact with the circlip When the first locking groove is matched, the second driving gear is engaged with the second driven gear; when the retaining spring is matched with the second locking groove, the second driving gear is engaged with the second driving gear. The driven gear is separated.
The intelligent valve of claim 1, wherein the housing comprises a first housing, a first bracket and a third bracket, and a valve seat is provided on the valve assembly, wherein:

the first shell is connected to the first bracket and is enclosed with the first bracket to form a first accommodating cavity;

Both the third bracket and the valve seat are located on the opposite side of the first bracket from the first housing, the third bracket is connected to the first bracket, and the valve seat is connected to the first bracket. three brackets;

Two ends of the first bracket along the length direction of the pipe are respectively provided with support parts, and the support parts are connected to the pipe.
The intelligent valve according to claim 18, wherein the casing further comprises a second casing, the second casing is located on the side of the first bracket facing the pipe, the second casing The body is provided with a groove along the length of the pipe that matches the contour of the pipe; the second shell is connected to the first bracket so as to wrap at least part of the pipe in the second in the cavity between the housing and the first bracket.
The intelligent valve of claim 18, wherein the housing further comprises a second bracket and a third housing located in the first accommodating cavity; the second bracket is connected to the first housing a bracket is enclosed with the first bracket to form a second accommodating cavity; the third housing is connected to the first bracket and enclosed with the second bracket to form a third accommodating cavity; the control device and the driving device are both arranged in the third accommodating cavity.