Assembling structure of intelligent water-control leakage-proof device

By using modular quick-connect flanges and distributed sensor design, combined with 4G remote control and dual power supply redundancy, the problems of detection accuracy, response delay and installation complexity of existing intelligent water control and leak prevention devices have been solved, realizing intelligent water control and leak prevention functions with high-precision detection, remote control and emergency redundancy.

CN224094276UActive Publication Date: 2026-04-07SHANGHAI NASENHE INTELLIGENT TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing intelligent water control and leak prevention devices suffer from insufficient detection accuracy and reliability, response delay, complex installation, poor environmental adaptability, and lack of emergency redundancy, resulting in high false alarm rates, high installation costs, inability to remotely monitor in real time, and difficulties in maintenance.

Method used

It adopts a modular quick-connect flange and a distributed multi-sensor design, combined with 4G remote control and dual power supply redundancy, integrating Hall effect flow sensors, solenoid valves, 4G IoT cloud control boxes and power management units to achieve high-precision detection, remote control, simplified installation and emergency redundancy.

Benefits of technology

It achieves high-precision leak detection and flow control, supports remote monitoring, simplifies the installation process, ensures long-term stable operation of the system in humid environments, and provides 48 hours of continuous operation and manual emergency water shut-off in the event of a power outage, reducing false alarm rate and installation complexity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224094276U_ABST
    Figure CN224094276U_ABST
Patent Text Reader

Abstract

The utility model discloses an assembly structure of an intelligent water-control leakage-proof device, which comprises a shell assembly made of waterproof engineering plastics, a front shell, a rear cover, a panel integrated touch screen and a state indicator lamp, and is characterized in that a 4G Internet of Things gateway cloud control box and a water flow control valve are mounted in the shell; the left water inlet fitting and the right water inlet fitting are connected through a buckle type coupler, a turbine switch shell and a magnetic rotor are embedded in the left fitting, and a flow deflector is arranged in the right fitting to stabilize water flow. The water flow control valve comprises a Hall effect flow sensor of a water inlet, an electromagnetic valve and a water outlet, and is hermetically connected with the pipeline through a quick-connection flange; the power supply redundancy interface is integrated with a lithium battery cabin and a solar charging interface; according to the device, distributed multi-sensor fusion is adopted to detect humidity and flow abnormity, and 4G remote control and SSL / TLS encryption communication are combined.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model provides a kind of assembly structure, in particular to a kind of assembly structure of intelligent water control leak-proof device. BACKGROUND

[0002] The intelligent water control leak-proof device is a kind of security equipment for real-time monitoring water environment anomaly (such as water leakage, pipe explosion) and cutting off water flow through automatic or remote control valve, and its core function is to reduce water resource waste and property loss.The typical device in prior art is usually composed of basic sensor (such as single humidity probe), mechanical valve and local controller, for example: humidity sensor is laid on the ground to detect water leakage, and controller triggers electromagnetic valve to close pipeline through wired signal;Some improved schemes introduce WiFi module to realize mobile phone alarm function.The basic structure of such device is single sensor+one-way control link, and sensor only relies on humidity threshold to trigger alarm, and valve control relies on local logic, and communication mode is limited to short-distance wireless transmission (such as Bluetooth).

[0003] The above structure has the following defects: first, the detection accuracy and reliability are insufficient, single sensor is easily disturbed by environmental humidity fluctuation, and cannot distinguish water leakage from normal water use (such as mopping floor), resulting in high false alarm rate;Second, control delay and single function, local controller only supports simple valve closing operation, lacks remote real-time monitoring and strategy optimization capability, and user cannot intervene when going out;Third, installation and maintenance are complex, sensor and valve need independent wiring, pipeline connection relies on professional tools (such as welding), and lacks modular design, and the cost of replacing faulty components is high;Fourth, poor environmental adaptability, traditional shell has low waterproof grade (below IP54), sealing material is easily aged, and electromagnetic valve is easily misoperated in strong interference environment;Fifth, lack of emergency redundancy, no backup power supply or manual operation mechanism, and cannot stop loss in time when power failure or system failure.These problems seriously limit the practicability and popularity of existing device in home and commercial scenarios. UTILITY MODEL CONTENTS

[0004] To solve the above problems, the application provides an assembly structure of intelligent water control leak-proof device, which adopts modular quick flange and distributed multi-sensor fusion design, combines 4G remote control and dual power redundancy, and solves the problems of high false alarm rate, response delay and complex installation.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: an assembly structure of intelligent water control leak-proof device, comprising:

[0006] The panel is made of waterproof engineering plastic, and the detachable front shell and rear cover jointly constitute the shell assembly, the panel surface is provided with touch screen and status indicator light, and the rear cover inner side is reserved with clamping groove for fixing circuit board;

[0007] The left water inlet fitting and the right water inlet fitting are respectively integrated on both sides of the shell, the left water inlet fitting is embedded with a turbine switch shell and a magnetic rotor, and both ends are provided with external threaded interfaces for docking with household PPR / PVC pipelines; the right water inlet fitting is fixed to the downstream of the valve body through a clamp, and an internal flow guide plate is arranged to reduce water flow pulsation;

[0008] 4G Internet of Things gateway cloud control box, installed in the shell, comprising:

[0009] Microcontroller board, fixed in the card slot by screws, with on-board WiFi / Bluetooth and 4G communication chips;

[0010] Power management unit, connected with external DC power input and built-in lithium battery compartment;

[0011] Water flow control valve, connected with 4G Internet of Things gateway cloud control box through shielded cable, comprising:

[0012] Water inlet, embedded with a flow sensor based on Hall effect to detect water flow;

[0013] Solenoid valve, connected with DN15 / DN20 specification pipeline through quick flange, and opens and closes the valve after receiving the control signal;

[0014] Water outlet, connected with the water inlet structure through a snap coupling, and the inner wall of the coupling is provided with a flow guide rib to align the water flow direction;

[0015] Power redundancy interface, provided on the side of the shell, including DC power input and lithium battery compartment, and the compartment is connected with 18650 battery pack through spring needle contact, and the compartment cover is sealed with a waterproof silicone plug.

[0016] Preferably, an annular waterproof groove is provided between the front shell and the rear cover, a fluororubber sealing ring is embedded in the groove, and anti-slip silicone foot pads are provided at the four corners of the shell.

[0017] Preferably, the flow sensor and the solenoid valve are designed in a split type, the flow sensor is directly connected in the pipeline through a flange plate, the solenoid valve is connected with the pipeline through a quick flange, an O-shaped silicone ring is arranged in the flange for sealing, and a locking knob is arranged on the outside to prevent loosening.

[0018] Preferably, the left water inlet fitting and the right water inlet fitting are connected through a snap coupling, and the flow guide ribs in the inner wall of the coupling are consistent with the water flow direction.

[0019] Preferably, the microcontroller board of the 4G Internet of Things gateway cloud control box is connected with the solenoid valve through a plug-in flat cable, and a metal shielding net is arranged on the outer sleeve of the flat cable to resist electromagnetic interference.

[0020] Preferably, a manual emergency knob is arranged on the outside of the water inlet of the water flow control valve, the knob is linked with the valve core through a gear set, and an on / off mark is engraved on the surface.

[0021] Preferably, the lithium battery compartment of the power redundancy interface has a built-in battery status detection circuit, and the detection results are displayed in real time via a touch screen.

[0022] Preferably, the touch screen supports touch operation and the interface integrates real-time traffic monitoring, alarm recording, remote control and parameter setting functions.

[0023] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0024] This device employs distributed high-precision leakage sensors to monitor humidity changes in leak-prone areas such as kitchens and bathrooms in real time. Combined with Hall effect flow sensors, it accurately measures water flow. When humidity or flow data exceeds preset thresholds, the control module immediately pushes multi-level alarm information to a mobile app via a 4G IoT cloud control box. Users can remotely shut off electric water valves deployed at key pipeline nodes with a single click. Simultaneously, the system incorporates a self-learning algorithm to analyze historical water usage patterns and automatically optimize valve shut-off strategies. Addressing installation complexity, a modular design allows for quick magnetic attachment of the leakage sensors and tool-free installation of the water valves via DN15 / DN20 quick-connect flanges. A snap-fit ​​coupling simplifies pipeline connection. To mitigate the risk of power outages or equipment failures, an integrated 18650 lithium battery pack provides 48 hours of continuous operation. A gear-linked emergency knob is added to the valve body, supporting purely mechanical water shut-off. Furthermore, shielded cables and metal braided mesh effectively suppress electromagnetic interference, while fluororubber sealing rings and polyurethane injection-molded joints ensure long-term stable operation in humid environments. Ultimately, this forms a complete leak-proof solution integrating intelligent monitoring, remote control, emergency redundancy, and ease of maintenance.

[0025] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0026] Figure 1 This is an exploded view of the assembly structure of an intelligent water control and leak prevention device according to this utility model.

[0027] Figure 2 This is a structural diagram of the water flow control valve in the assembly structure of an intelligent water control and leak prevention device according to this utility model.

[0028] As shown in the figure:

[0029] 1. Panel; 2. Front shell; 3. Touch screen; 4. Left water inlet accessory; 5. Right water inlet accessory; 6. 4G IoT cloud control box; 7. Water flow control valve; 8. Rear cover; 9. Water inlet; 10. Flow sensor; 11. Solenoid valve; 12. Water outlet. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] like Figure 1 As shown, an assembly structure for an intelligent water control and leak prevention device includes: a panel made of waterproof engineering plastic, which, together with a detachable front shell and a rear cover, forms a housing assembly. The panel surface is equipped with a touch screen and status indicator lights, and the inner side of the rear cover has a pre-reserved slot for fixing a circuit board; a left water inlet accessory and a right water inlet accessory are respectively integrated on both sides of the housing. The left accessory has an embedded turbine switch shell and a magnetic rotor, and both ends are provided with external threaded interfaces to connect with household PPR / PVC pipes. The right accessory is fixed by clamps and has built-in guide vanes to reduce water flow pulsation; a 4G IoT cloud control box is installed inside the housing, including a microcontroller board and a power management unit; a water flow control valve is connected to the control box through a shielded cable, including a water inlet, a solenoid valve, and a water outlet; a power redundancy interface is located on the side of the housing, including a DC input port and a lithium battery compartment.

[0034] In this implementation, the panel is fixed to the front shell and rear cover by clips and screws to form a sealed protective structure. An annular waterproof groove with a fluororubber sealing ring is provided between the front shell and the rear cover, and anti-slip silicone pads are provided at the four corners to ensure waterproofing and stability. The touch screen is embedded in the panel surface and connected to the microcontroller board via a flexible ribbon cable to display the system status in real time.

[0035] The left and right water inlet fittings are connected in series via a snap-fit ​​coupling. The guide ribs inside the coupling optimize the water flow path and reduce turbulence. The external threaded interface of the left fitting connects directly to the household pipe, while the right fitting uses a clamp to fix the guide vane, reducing the interference of water flow pulsation on the sensor.

[0036] The microcontroller board inside the 4G IoT gateway control box is connected to the solenoid valve via a pluggable ribbon cable, shielding it from household electromagnetic interference; the power management unit integrates the main power supply and the lithium battery compartment, automatically switching to the backup power supply in case of power failure.

[0037] In the water flow control valve, the flow sensor detects water flow pulse signals based on the Hall effect, the solenoid valve achieves quick sealing installation through a quick-connect flange, and the outlet coupling guide ribs ensure stable water flow output.

[0038] Based on the above implementation plan

[0039] The flow sensor and solenoid valve are installed separately. The sensor is directly connected in series with the pipeline via a flange, and the solenoid valve is connected via a quick-connect flange. Installation can be completed without special tools, greatly reducing deployment difficulty. Snap-fit ​​couplings: The inlet and outlet are aligned by guide ribs, simplifying the pipeline connection process and avoiding the complexity of traditional welding or gluing.

[0040] The panel and housing are made of waterproof engineering plastic, combined with fluororubber sealing rings and silicone feet to ensure long-term stable operation in humid environments.

[0041] Shielded cables and metal braided cables: isolate electromagnetic interference from household appliances and ensure the reliability of control signal transmission.

[0042] 4G IoT Gateway Control Box: Supports remote monitoring and policy optimization. Users can set thresholds, view alarm records, and link with smart home systems via the touch screen.

[0043] Manual emergency knob and lithium battery backup power: dual redundancy design ensures water control function even in extreme situations, preventing further leakage.

[0044] High-efficiency detection and energy-saving control:

[0045] Hall effect flow sensor: High-precision detection of water flow changes, combined with cloud-based machine learning analysis, to provide early warning of abnormal water usage patterns;

[0046] Flow guide vanes and flow stabilizing components: reduce water flow pulsation, extend sensor life, and reduce water pump energy consumption.

[0047] like Figure 2As shown, an annular waterproof groove with a fluororubber sealing ring is provided between the front shell and the rear cover, and anti-slip silicone pads are provided at the four corners of the shell; the flow sensor and the solenoid valve are designed separately, with the former connected in series to the pipeline via a flange and the latter connected to the pipeline via a quick-connect flange; the left and right inlet fittings are connected by a snap-fit ​​coupling, with the guide ribs of the coupling aligned with the water flow direction; the control box and the solenoid valve are connected by a pluggable ribbon cable to prevent interference; a manual emergency knob is provided on the outside of the inlet, which is linked to the valve core via a gear set and is marked with open / close; the lithium battery compartment with redundant power interface has a built-in battery status detection circuit, and the detection results are displayed on the touch screen in real time; the touch screen integrates real-time flow monitoring, alarm recording, remote control and parameter setting functions, and supports touch operation.

[0048] In this implementation scheme, under the existing technology, the actual application of this device also requires the following auxiliary devices and technologies not explicitly mentioned: To enhance waterproof reliability, a polyurethane injection-molded sealing layer is used at the shell seams, and an EPDM O-ring is nested inside the quick-connect flange, with a temperature resistance range of -40℃ to 120℃, suitable for hot and cold water environments; to improve energy redundancy, the solar charging panel is integrated into the back of the panel, connected to the lithium battery compartment through the MPPT controller, and a wireless charging coil is built into the bottom of the shell to support emergency reverse power supply for mobile phones; data transmission security is achieved through a hardware encryption chip, supporting AES-256 algorithm encryption of command streams to prevent remote communication from being intercepted; mechanical connection reliability is enhanced by a 304 stainless steel spring lock to strengthen the quick-connect flange structure, and the guide rib design reduces water flow impact deformation; user interaction expandability is achieved through a voice control module, supporting voice linkage with a smart home platform. In this device, the turbine switch shell uses a brass nickel-plated process, which is corrosion-resistant and reduces friction loss; the guide plate uses POM engineering plastic, with a smooth surface to reduce water flow resistance; the shielded cable is wrapped with an aluminum foil Mylar layer to further isolate high-frequency electromagnetic interference. The integrated application of these existing technologies and materials further improves the system's environmental adaptability, safety, and intelligence.

[0049] The steps for using this device are as follows: First, the user closes the main water valve at the main inlet of the household water supply pipe and in areas prone to leakage (such as the kitchen and bathroom) and drains the pipe. Connect the left inlet fitting 4 to the PPR / PVC pipe via the external thread interface, and fix the right inlet fitting 5 downstream with a clamp, ensuring that the direction of the guide vane is consistent with the water flow. Then, connect the inlet 9 of the water flow control valve 7 to the left fitting, and connect the outlet 12 to the right fitting via a snap-fit ​​coupling (with the inner guide ribs aligned). Wrap the quick-connect flange with Teflon tape and tighten the locking knob to seal. When installing the housing assembly, fix the microcontroller board of the 4G IoT cloud control box 6 into the slot of the rear cover 8, and connect the solenoid valve 11 via a pluggable ribbon cable (with a metal shielding mesh). Press the panel 1 and the front shell 2 together with a fluororubber sealing ring. Connect the power redundant interface to a DC power supply or install an 18650 battery pack. After completing the physical installation, the user downloads the mobile APP and registers an account, adding [the necessary information] within the APP. The device automatically pairs with the water leakage sensor 10 and solenoid valve 11 via WiFi / Bluetooth / 4G, sets the alarm humidity threshold (recommended to be 10%-15% higher than the ambient value), selects the automatic valve shut-off strategy (immediate shutdown or delayed confirmation), and configures timed tasks (such as shutting off unnecessary water use at night). During daily use, users can view flow data and valve status in real time via the touch screen 3 or the APP. When the sensor detects excessive humidity or abnormal flow, the APP pushes an alarm message, and users can remotely shut off the corresponding water valve with one click or activate the system self-test function to troubleshoot the fault. During maintenance, it is necessary to regularly clean the scale on the sensor surface, check the aging of the silicone gasket and O-ring, replace parts using the AR guidance module embedded in the APP, and optimize the control algorithm by automatically pushing firmware upgrade packages through the cloud. In case of sudden power failure, the lithium battery compartment (with a battery life of ≥48 hours) will automatically provide power, while the manual emergency knob can physically cut off the water flow to ensure reliable operation of the system in all scenarios.

[0050] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. An assembly structure for an intelligent water control and leak prevention device, characterized in that, include: The panel (1) is made of waterproof engineering plastic and together with the detachable front shell (2) and rear cover (8) form a housing assembly. The panel surface is provided with a touch screen (3) and status indicator lights. The inner side of the rear cover has a reserved slot for fixing the circuit board. The left water inlet fitting (4) and the right water inlet fitting (5) are integrated on both sides of the housing. The left water inlet fitting has an embedded turbine switch housing and a magnetic rotor, and external threaded interfaces at both ends to connect with household PPR / PVC pipes. The right water inlet fitting is fixed to the downstream of the valve body by a clamp, and a guide vane is provided inside to reduce water flow pulsation. The 4G IoT gateway control box (6), installed inside the housing, includes: The microcontroller board is fixed in the slot with screws and has onboard WiFi / Bluetooth and 4G communication chips. The power management unit connects to the external DC power input port and the built-in lithium battery compartment. A water flow control valve (7) is connected to a 4G IoT gateway control box via a shielded cable, including: The inlet (9) has an embedded flow sensor (10) that detects water flow based on the Hall effect; The solenoid valve (11) is connected to the DN15 / DN20 specification pipeline through a quick-connect flange, and opens and closes the valve after receiving the control signal; The outlet (12) is connected to the inlet structure by a snap-fit ​​coupling. The inner wall of the coupling is provided with guide ribs to align the water flow direction. The power redundancy interface is located on the side of the housing, including a DC power input port and a lithium battery compartment. The compartment is connected to the 18650 battery pack via spring-loaded contacts, and the compartment cover is sealed with a waterproof silicone plug.

2. The assembly structure according to claim 1, characterized in that: An annular waterproof groove is provided between the front shell (2) and the rear cover (8), and a fluororubber sealing ring is embedded in the groove. Anti-slip silicone pads are provided at the four corners of the shell.

3. The assembly structure according to claim 1, characterized in that: The flow sensor (10) and the solenoid valve (11) are designed separately. The flow sensor is directly connected in series in the pipeline through a flange, and the solenoid valve is connected to the pipeline through a quick-connect flange. The flange is sealed with an O-ring silicone seal inside and a locking knob is provided on the outside to prevent loosening.

4. The assembly structure according to claim 1, characterized in that: The left water inlet fitting (4) and the right water inlet fitting (5) are connected by a snap-fit ​​coupling, and the guide ribs on the inner wall of the coupling are aligned with the direction of water flow.

5. The assembly structure according to claim 1, characterized in that: The microcontroller board of the 4G IoT gateway control box (6) is connected to the solenoid valve (11) via a pluggable ribbon cable, and the ribbon cable is covered with a metal shielding mesh to resist electromagnetic interference.

6. The assembly structure according to claim 1, characterized in that: The water flow control valve (7) has a manual emergency knob on the outside of the inlet (9). The knob is linked to the valve core through a gear set and has an open / close mark on its surface.

7. The assembly structure according to claim 1, characterized in that: The lithium battery compartment of the power redundancy interface has a built-in battery status detection circuit, and the detection results are displayed in real time through the touch screen (3).

8. The assembly structure according to claim 1, characterized in that: The touch screen (3) supports touch operation and integrates real-time traffic monitoring, alarm recording, remote control and parameter setting functions.