Liquid leakage detection alarm device

Abstract

A control loop of the liquid leakage detection alarm device comprises a storage battery, an isolating switch, a quick socket, a second relay, an alarm lamp and an alarm sounder which are connected in series on a positive electrode power supply line and a negative electrode power supply line, and a first fuse is arranged between the positive electrode of a power supply and the positive electrode power supply line. A second fuse is arranged between the quick socket and the positive power supply line, a first relay is arranged between the quick socket and the negative power supply line, a switch button is arranged between the second relay and the positive power supply line, one end of the leakage detection cable is inserted into the quick socket, and the other end of the leakage detection cable is exposed and contacted with a detected conductor. The utility model has the advantages that the design and manufacture are simple, the principle is clear, and a plurality of detection nodes can be expanded as required; the fault rate is low, and the maintenance cost can be reduced; construction wiring, pipe arrangement and wiring debugging work can be effectively reduced, and the construction progress is accelerated; compared with the prior art, the purchase of precision equipment can be reduced, the project purchase cost can be reduced, and repeated utilization can be realized; and various working conditions can be effectively adapted.

Description

Technical Field

[0001] This utility model relates to a liquid leakage detection and alarm device, specifically a simple rechargeable relay-type liquid leakage detection and alarm device for engineering construction projects with liquid leakage detection requirements. Background Technology

[0002] In engineering projects, alarms are required for certain areas where liquid leakage is prevented. However, in actual construction, there may be situations where power supply conditions are insufficient or budget is limited.

[0003] Existing leak detection and alarm equipment generally requires on-site power supply, a high-performance controller, dedicated detection cables, and professional installation engineers. These systems are often expensive, have complex control logic, and are unsuitable for the harsh conditions encountered during construction projects. This mismatch with the practical needs of temporary applications, cost constraints, and environmental factors in engineering projects, coupled with the higher failure rate due to the controller's involvement, makes them unsuitable for such environments.

[0004] In summary, existing leak detection and alarm devices have problems such as increased project costs, installation and commissioning costs, and inapplicability to on-site conditions. Utility Model Content

[0005] This utility model proposes a leakage detection and alarm device, which aims to overcome the above-mentioned shortcomings of the existing technology, realize reuse, reduce on-site investment costs, and meet various working conditions.

[0006] The technical solution of this utility model is as follows: A leakage detection alarm device includes a control circuit. The control circuit includes a battery, a disconnect switch, a quick-connect socket, a second relay, an alarm light, and an alarm sounder connected in series with the positive and negative power supply lines. A first fuse is installed between the positive power supply line and the positive power supply line, a second fuse is installed between the quick-connect socket and the positive power supply line, a first relay is installed between the quick-connect socket and the negative power supply line, and a switch button is installed between the second relay and the positive power supply line. One end of the leakage detection cable is plugged into the quick-connect socket, and the other end of the cable is exposed and in contact with the conductive body being tested. During operation, the device is powered by the battery. The cable is laid at the tested location. Utilizing the conductivity of the tested liquid, the cable is exposed in sections at the detection position. The exposed wires, through low-voltage DC characteristics, form a conductive circuit. A simple physical interlock within the device forms a complete alarm system, achieving audible and visual alarm.

[0007] Preferably, the control circuit also includes a power indicator light connected in series with the positive power supply line and the negative power supply line.

[0008] Preferably, the leakage detection cable has a plug at one end, and the detection wire is exposed near the other end of the cable. The detection wire is in contact with the conductive body being tested via a fixing sticker. This allows for detection to be arranged in any location, achieving point or area coverage.

[0009] Preferably, the control circuit is located inside the cabinet, the battery is a rechargeable battery, the top of the cabinet is equipped with a handle, the bottom of the cabinet is equipped with support legs, the quick socket is located on the side of the cabinet, the side of the cabinet is equipped with a charging port for connecting to the rechargeable battery, and the alarm light and alarm sounder constitute a column light located on the top of the cabinet.

[0010] The advantages of this utility model are: simple and reasonable structural design, easy design and manufacturing, clear principle, and multiple detection nodes can be expanded as needed; low failure rate, which can reduce maintenance costs; it can effectively reduce construction wiring, pipe laying, wiring and debugging work, and can speed up construction progress; compared with the existing technology, it can reduce the purchase of precision equipment, reduce project procurement costs, and can also be reused; powered by a storage battery, it can effectively adapt to various working conditions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the leakage detection and alarm device of this utility model.

[0012] Figure 2 yes Figure 1 A schematic diagram of the main body of the liquid leakage detection and alarm device.

[0013] Figure 3 yes Figure 2 A schematic diagram of the internal structure.

[0014] Figure 4 This is a schematic diagram of the detection principle of the leakage detection alarm device of this utility model.

[0015] Figure 5 yes Figure 1 A schematic diagram of the structure of the leakage detection line.

[0016] Figure 6 This is the schematic diagram of the first part of the control circuit of the leakage detection and alarm device of this utility model.

[0017] Figure 7 This is the schematic diagram of the control circuit of the second part of the leakage detection and alarm device of this utility model.

[0018] In the diagram, 1 is the main body of the leak detection alarm device, 11 is the quick socket, 12 is the cabinet, 13 is the handle, 14 is the support leg, 15 is the rechargeable battery, 151 is the charging port, 16 is the audible and visual alarm light, 2 is the leak detection cable, 21 is the plug, 22 is the detection wire, 23 is the fixing sticker, and 3 is the conductive body being tested. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.

[0020] like Figure 1-3 As shown, a leakage detection alarm device includes a leakage detection alarm device body 1, a leakage detection cable 2, and a conductive body 3 to be tested. The leakage detection alarm device body 1 includes a rechargeable battery 15 and an audible and visual alarm light 16. One end of the leakage detection cable 2 is plugged into the leakage detection alarm device body 1, and the other end of the leakage detection cable 2 is exposed and in contact with the conductive body 3 to be tested.

[0021] At work, such as Figure 4 As shown, the main body 1 of the leakage detection alarm device is powered by a storage battery (rechargeable battery 15). A cable (leakage detection cable 2) is laid at the tested location. Based on the conductivity of the tested liquid, the cable is exposed in sections at the detection location. The exposed wires form a conductive circuit through the low-voltage DC characteristics. A complete alarm device is formed inside the cabinet 12 of the main body 1 of the leakage detection alarm device through simple physical interlocking, so as to realize the sound and light alarm.

[0022] like Figure 5 As shown, a plug 21 is provided at one end of the leakage detection cable 2, and the detection wire 22 is exposed near the other end of the leakage detection cable 2. The detection wire 22 is in contact with the conductive body 3 being tested through the fixing sticker 23.

[0023] like Figure 2 , 3 As shown, in the actual design, the main body 1 of the leakage detection alarm device includes a cabinet 12, a handle 13 on the top of the cabinet 12, a support leg 14 at the bottom of the cabinet 12, a quick socket 11 on the side of the cabinet 12, a rechargeable battery 15 inside the cabinet 12, a charging port 151 connected to the rechargeable battery 15 on the side of the cabinet 12, and an audible and visual alarm light 16 on the top of the cabinet 12.

[0024] like Figure 6 , 7 As shown, the control circuit inside the cabinet 12 includes a battery PS1, a disconnect switch QF1, a power indicator light HL1, a quick-connect socket CZ1, a second relay KA2, an alarm light HA1, and an alarm sounder HD1 connected in series with the positive power supply line L+ and the negative power supply line M-. A first fuse FU1 is installed between the positive terminal of the power supply PS1 and the positive power supply line L+, a second fuse FU2 is installed between the quick-connect socket CZ1 and the positive power supply line L+, a first relay KA1 is installed between the quick-connect socket CZ1 and the negative power supply line M-, and a switch button SB1 is installed between the second relay KA2 and the positive power supply line L+.

[0025] It is also preferable to connect the IoT module WF1 in series, which can be used to configure remote alarm functions such as mobile phone WeChat alarm push as needed.

[0026] Based on the above structure, the power supply is provided by a rechargeable battery, the relay circuit alarm is activated, and the leakage detection cable 2 can be set arbitrarily according to the detection point. Compared with the existing technology, it can reduce investment costs and shorten installation and commissioning time. It can be deployed for detection in any situation, can achieve point and area coverage, is reusable, and has a simple material composition. Example

[0027] Cabinet 12 measures 350mm x 500mm x 300mm.

[0028] The disconnector switch QF1 is model C65N-2P / 6A.

[0029] The fuse element 2A of the first fuse FU1 and the second fuse FU2 includes the base.

[0030] Intermediate relays: The coil voltage of the first relay KA1 and the second relay KA2 is DC24V, 2P.

[0031] The power indicator light HL1 is a green indicator light for DC24V.

[0032] The switch button SB1 is a blue button with NO+NC contacts.

[0033] The alarm light HA1 and alarm sounder HD1 are integrated into the pillar light, which is a DC24V red pulse alarm light.

[0034] The PS1 battery is a DC24V 10Ah lead-acid battery.

[0035] The CZ1 quick-connect plug is a 10A 2-hole waterproof quick-connect plug.

[0036] Leakage detection cable 2 uses RVV2*1.0 and can be self-made or purchased according to actual needs.

[0037] During operation, it utilizes a 24V DC battery and relay structure, employing safe low-voltage DC characteristics. Through circuit interlocking, it leverages the conductivity of the measured object and provides alarm prompts via a simple logic circuit. On-site alarms can be set at segmented points using ordinary cables, enabling both single-point and large-area detection. Optional components can be added for remote real-time alerts via cloud networks, effectively addressing the increased cost and installation challenges of existing complex equipment.

[0038] All of the components described above are existing technologies, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A leakage detection and alarm device, characterized in that, The system includes a control circuit, which consists of a battery, a disconnect switch, a quick-connect socket, a second relay, an alarm light, and an alarm sounder connected in series with the positive and negative power supply lines. A first fuse is installed between the positive power supply line and the positive power supply line, a second fuse is installed between the quick-connect socket and the positive power supply line, a first relay is installed between the quick-connect socket and the negative power supply line, and a switch button is installed between the second relay and the positive power supply line. One end of the leakage detection cable is plugged into the quick-connect socket, and the other end of the cable is exposed and in contact with the conductive body being tested.

2. The leakage detection and alarm device as described in claim 1, characterized in that, The control circuit also includes a power indicator light connected in series with the positive and negative power supply lines.

3. The leakage detection and alarm device as described in claim 1, characterized in that, The leakage detection cable has a plug at one end and a detection wire exposed near the other end. The detection wire is in contact with the conductive body being tested through a fixing sticker.

4. The leakage detection and alarm device as described in claim 2, characterized in that, The control circuit is located inside the cabinet. The battery is a rechargeable battery. The top of the cabinet has a handle, the bottom of the cabinet has support legs, the quick socket is located on the side of the cabinet, and the side of the cabinet has a charging port for connecting to the rechargeable battery. The alarm light and alarm sounder form a pillar light located on the top of the cabinet.

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