Automatic drainage control module and automatic water inlet control module

Abstract

The utility model discloses an automatic drainage control module and an automatic water inlet control module. The automatic drainage control module comprises a shell; the shell is provided with a quick-plug terminal strip, a high liquid level indicating lamp, a low liquid level indicating lamp, a starting output indicating lamp and a fault indicating lamp. The quick-plug terminal strip is used for introducing a live wire, a zero wire and liquid level switches arranged in the tank body or the tank body, and a high liquid level control circuit, a low liquid level control circuit, a starting output circuit and a fault output circuit are connected in parallel between the live wire and the zero wire; the high-liquid-level control circuit comprises a high-liquid-level switch and a high-liquid-level relay coil which are connected in series, the low-liquid-level control circuit comprises a low-liquid-level switch and a low-liquid-level relay coil which are connected in series, and the starting output circuit comprises a high-liquid-level contact, a low-liquid-level contact, a fault contact and a starting relay coil which are connected in series. The high liquid level contact or the low liquid level contact is connected with a starting contact in parallel, and the fault output circuit comprises a high-high / low-low liquid level switch and a fault relay coil which are connected in series. Under the condition that no PLC control system exists, water discharging / feeding control can be effectively carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical control, and particularly relates to a drainage automatic control module and a water inlet automatic control module, which are used to control the start and stop of a drainage pump / drainage switch or a water inlet pump / water inlet switch of a pool or a tank, display the liquid level state, and monitor whether a fault occurs. Background Art

[0002] The drainage (water inlet) automatic control module is a module used to control the liquid level. In projects of all walks of life, there are liquid storage devices such as pools and tanks. Traditional drainage (water inlet) automatic control modules usually use mechanical float balls, pressure sensors, ultrasonic sensors, etc. to detect the liquid level, connect to control systems such as PLCs, and control devices such as solenoid valves and water pumps to achieve liquid level control, with a relatively high investment cost.

[0003] Liquid level switch quantity control is a simple and commonly used drainage (water inlet) method, usually used to control the upper and lower limits of the liquid level; based on the principle of a liquid level switch, when the liquid level reaches or exceeds the set upper and lower limits, the liquid level switch will send a signal to control the on / off of devices such as solenoid valves and water pumps, thereby achieving liquid level control.

[0004] In liquid level switch quantity control, the liquid level switch is usually installed at the top or bottom of the container, and the on / off of the device is controlled by detecting the height of the liquid level. When the liquid level is lower than the set lower limit, the liquid level switch will send a signal to control the solenoid valve to open and add water to the container; when the liquid level reaches the set upper limit, the liquid level switch will send a signal to control the solenoid valve to close and stop adding water.

[0005] Liquid level switch quantity control has the advantages of simple structure, low cost, easy maintenance, etc., and is suitable for some occasions with low requirements for drainage (water inlet). In actual projects, the liquid level switch signal needs to be fed back to the distribution cabinet or control system, and the wiring is relatively complex. If the distribution cabinet controls multiple pools, there are many liquid level signal access terminals, and the maintenance wiring is also inconvenient. It is easy to get confused if the markings are not clear. Content of the Utility Model

[0006] Aiming at the deficiencies in the prior art, the utility model provides a drainage automatic control module and a water inlet automatic control module, which are used to control the start and stop of a drainage pump / drainage switch or a water inlet pump / water inlet switch of a pool or a tank, display the liquid level state, and monitor whether a fault occurs. It can achieve reliable control of the liquid level, and achieve the purpose of reducing costs, convenient operation, and clear wiring.

[0007] The first object of the utility model is to provide a drainage automatic control module, including: a housing;

[0008] The housing is provided with a high liquid level indicator light, a low liquid level indicator light, a start output indicator light, a fault indicator light and a quick-connect terminal block;

[0009] The first terminal of the quick-connect terminal block is connected to the live wire, and the second terminal is connected to the neutral wire. A high liquid level control circuit, a low liquid level control circuit, a start output circuit and a fault output circuit are connected in parallel between the live wire and the neutral wire;

[0010] The high liquid level control circuit includes a high liquid level switch and a high liquid level relay coil connected in series, and the high liquid level indicator light is connected in parallel on the high liquid level relay coil; wherein, the high liquid level switch is plugged into the third terminal and the fourth terminal of the quick-connect terminal block;

[0011] The low liquid level control circuit includes a low liquid level switch and a low liquid level relay coil connected in series, and the low liquid level indicator light is connected in parallel on the low liquid level relay coil; wherein, the low liquid level switch is plugged into the fifth terminal and the sixth terminal of the quick-connect terminal block;

[0012] The start output circuit includes a high liquid level contact, a low liquid level contact, a fault contact and a start relay coil connected in series. A start contact is connected in parallel on the high liquid level contact, and the start output indicator light is connected in parallel on the start relay coil; wherein, the start contact is plugged into the eleventh terminal and the twelfth terminal of the quick-connect terminal block, the fault contact is plugged into the thirteenth terminal and the fourteenth terminal of the quick-connect terminal block, the start contact is connected to an external drain switch or drain pump, and the fault contact is connected to an external alarm device;

[0013] The fault output circuit includes a high-high liquid level switch and a fault relay coil connected in series. A low-low liquid level switch is connected in parallel on the high-high liquid level switch, and the fault indicator light is connected in parallel on the fault relay coil; wherein, the high-high liquid level switch is plugged into the seventh terminal and the eighth terminal of the quick-connect terminal block, and the low-low liquid level switch is plugged into the ninth terminal and the tenth terminal of the quick-connect terminal block.

[0014] As a further improvement of the present utility model, the housing is further provided with an equipment identification area. The high liquid level indicator light, the low liquid level indicator light, the start output indicator light, the fault indicator light and the equipment identification area are arranged on the front of the housing, the quick-connect terminal block is arranged on the back of the housing, the high liquid level indicator light, the low liquid level indicator light and the start output indicator light are green LED lights, and the fault indicator light is a red LED light.

[0015] As a further improvement of the present utility model, the high-level relay coil, high-level contact, low-level relay coil, low-level contact, start relay coil, and fault relay coil are installed in the housing. The high-level contact and start contact are normally open contacts, and the low-level contact and fault contact are normally closed contacts. The high-high-level switch, high-level switch, low-level switch, and low-low-level switch are sequentially arranged from top to bottom in the pool or tank. The drain switch (solenoid valve) or drain pump is arranged at the drain outlet of the pool or tank. Further, the above-mentioned level switch is a digital quantity level switch.

[0016] As a further improvement of the present utility model, the terminals of the quick-insert terminal block adopt an anti-reverse insertion design.

[0017] As a further improvement of the present utility model, a fuse is provided on the live wire.

[0018] As a further improvement of the present utility model,

[0019] In the drainage mode, when the high-level switch is triggered, the high-level indicator light is lit, the start contact outputs, and the drain switch or drain pump starts to drain. When the low-level switch is triggered during drainage, the low-level indicator light is lit, and the start contact output stops.

[0020] When the high-level switch and the low-level switch fail, and the high-high-level switch or the low-low-level switch is triggered, the fault indicator light is lit, and the fault contact outputs an alarm interlock signal.

[0021] The second object of the present utility model is to provide an automatic water inlet control module, including: a housing;

[0022] The housing is provided with a high-level indicator light, a low-level indicator light, a start output indicator light, a fault indicator light, and a quick-insert terminal block;

[0023] The live wire is introduced into the first terminal of the quick-insert terminal block, and the neutral wire is introduced into the second terminal. A high-level control circuit, a low-level control circuit, a start output circuit, and a fault output circuit are connected in parallel between the live wire and the neutral wire;

[0024] The high-level control circuit includes a high-level switch and a high-level relay coil connected in series, and the high-level indicator light is connected in parallel with the high-level relay coil. Among them, the high-level switch is plugged into the third terminal and the fourth terminal of the quick-insert terminal block;

[0025] The low-level control circuit includes a low-level switch and a low-level relay coil connected in series, and the low-level indicator light is connected in parallel with the low-level relay coil. Among them, the low-level switch is plugged into the fifth terminal and the sixth terminal of the quick-insert terminal block;

[0026] The starting output circuit includes a low liquid level contact, a high liquid level contact, a fault contact, and a starting relay coil connected in series. A starting contact is connected in parallel to the low liquid level contact, and a starting output indicator light is connected in parallel to the starting relay coil. Among them, the starting contact is plugged into the eleventh terminal and the twelfth terminal of the quick-insert terminal block, the fault contact is plugged into the thirteenth terminal and the fourteenth terminal of the quick-insert terminal block, the starting contact is connected to an external water inlet switch or a water inlet pump, and the fault contact is connected to an external alarm device.

[0027] The fault output circuit includes a high-high liquid level switch and a fault relay coil connected in series. A low-low liquid level switch is connected in parallel to the high-high liquid level switch, and a fault indicator light is connected in parallel to the fault relay coil. Among them, the high-high liquid level switch is plugged into the seventh terminal and the eighth terminal of the quick-insert terminal block, and the low-low liquid level switch is plugged into the ninth terminal and the tenth terminal of the quick-insert terminal block.

[0028] As a further improvement of the present utility model, an equipment identification area is also provided on the housing. The high liquid level indicator light, the low liquid level indicator light, the starting output indicator light, the fault indicator light, and the equipment identification area are arranged on the front of the housing, the quick-insert terminal block is arranged on the back of the housing, the high liquid level indicator light, the low liquid level indicator light, and the starting output indicator light are green LED lights, and the fault indicator light is a red LED light.

[0029] As a further improvement of the present utility model, the high liquid level relay coil, the high liquid level contact, the low liquid level relay coil, the low liquid level contact, the starting relay coil, and the fault relay coil are installed inside the housing. The low liquid level contact and the starting contact are normally open contacts, and the high liquid level contact and the fault contact are normally closed contacts. The high-high liquid level switch, the high liquid level switch, the low liquid level switch, and the low-low liquid level switch are arranged in the pool or tank from top to bottom in sequence, and the water inlet switch (solenoid valve) or the water inlet pump is arranged at the water inlet of the pool or tank.

[0030] As a further improvement of the present utility model, the terminals of the quick-insert terminal block adopt an anti-reverse insertion design.

[0031] As a further improvement of the present utility model,

[0032] In the water inlet mode, when the low liquid level switch is triggered, the low liquid level indicator light is lit, the starting contact outputs, and the water inlet switch or the water inlet pump starts to let water in. When the water inlet triggers the high liquid level switch, the high liquid level indicator light is lit, and the output of the starting contact stops.

[0033] When the high liquid level switch and the low liquid level switch fail, and the high-high liquid level switch or the low-low liquid level switch is triggered, the fault indicator light is lit, and the fault contact outputs an alarm interlock signal.

[0034] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0035] The present utility model can connect the liquid level signals that originally needed to be connected to a power distribution cabinet or a PLC, etc., into the automatic control module, and the module outputs control signals; at the same time, it is standardized to the integrated module, achieving standardization and standardization;

[0036] By standardizing the standard drainage (inlet) water automatic control module, the present utility model can improve the production efficiency of the switchgear factory and the wiring efficiency of on-site construction;

[0037] By standardizing the standard drainage (inlet) water automatic control module, through reasonable layout, it can be installed on the power distribution cabinet and the on-site control box; the liquid level state can be visually seen, which is neat and uniform, beautiful and convenient for later maintenance and repair;

[0038] By standardizing the standard drainage (inlet) water automatic control module, the present utility model simplifies the secondary control circuit, reduces the wiring terminals for signal access, saves the space of the distribution box cabinet, is convenient to operate, simplifies the wiring, and improves the work efficiency of installation and later maintenance. Description of the Drawings

[0039] Figure 1 It is the front view of the drainage automatic control module disclosed by the present utility model;

[0040] Figure 2 It is the back view of the drainage automatic control module disclosed by the present utility model;

[0041] Figure 3 It is the control schematic diagram of the drainage automatic control module disclosed by the present utility model;

[0042] Figure 4 It is the front view of the inlet water automatic control module disclosed by the present utility model;

[0043] Figure 5 It is the back view of the inlet water automatic control module disclosed by the present utility model;

[0044] Figure 6 It is the control schematic diagram of the inlet water automatic control module disclosed by the present utility model.

[0045] Symbol Explanation:

[0046] 1-1, high liquid level indicator light; 1-2, low liquid level indicator light; 1-3, start output indicator light; 1-4, fault indicator light; 1-5, equipment identification area; 1-6, quick plug terminal block; 1~18, terminals of the quick plug terminal block;

[0047] L, live wire; N, neutral wire; FU, fuse; K1, high liquid level relay coil; k1, high liquid level contact; K2, low liquid level relay coil; k2, low liquid level contact; K3, start relay coil; k3, start contact; K4, fault relay coil; k4, fault contact; LS01, high liquid level switch; LS02, low liquid level switch; LS03, very high liquid level switch; LS04, very low liquid level switch. Detailed implementation mode

[0048] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0049] The following further describes the present utility model in detail in conjunction with the drawings:

[0050] The present utility model provides a drainage automatic control module and a water inlet automatic control module. This module can be installed on-site or in a power distribution cabinet; it is used in conjunction with a digital input / output (DI) liquid level switch, and the liquid level signal of the DI liquid level switch is connected to the module through a unified terminal block to feedback the liquid level status, which can display high and low liquid levels, high and low alarm liquid levels, and output to control the operation of a water inlet pump or solenoid valve; realizing simple drainage (water inlet) and meeting the basic automated drainage (water inlet) requirements. The terminal blocks on the back of the module are connected to the circuit according to a fixed order. The terminals adopt quick-insert design and have an anti-reverse insertion function. If there is a problem with the module, it can be quickly replaced and repaired, and the subsequent wires and cables are also convenient to neatly arrange, and can be quickly identified during the construction process, and can be well grouped to avoid confusion of feedback signals.

[0051] Embodiment 1:

[0052] As Figures 1 to 3 shown, the present utility model provides a drainage automatic control module, including: a housing;

[0053] The housing is preferably a square engineering plastic housing, which is installed on the pre-set opening of the main circuit power distribution cabinet (box) or on-site control box to complete the assembly of the housing and the main circuit power distribution cabinet (box) or on-site control box; if the drainage automatic control module is installed outdoors, the protection level of the housing is not less than IP54; a rain shield can also be set on the front panel of the housing, and the protection level is not less than IP65. The inside of the housing is designed to be sealed, the internal circuit uses a printed circuit board (PCB), the voltage level is AC220V, the rated current is not less than 3A, the intermediate relay uses 4 groups of contacts, and the power supply incoming line has short-circuit protection.

[0054] On the front panel of the housing, there are a display area and a device identification area 1-5. In the display area, there are a high liquid level indicator light 1-1, a low liquid level indicator light 1-2, a start output indicator light 1-3, and a fault indicator light 1-4. Corresponding indicator light identifications are provided beside the high liquid level indicator light 1-1, the low liquid level indicator light 1-2, the start output indicator light 1-3, and the fault indicator light 1-4. Moreover, the high liquid level indicator light 1-1, the low liquid level indicator light 1-2, and the start output indicator light 1-3 are green LED lights, and the fault indicator light 1-4 is a red LED light. The device identification area 1-5 can be identified according to the name of the pool body, that is, the name of the controlled pool body or tank is provided on the device identification area 1-5. One module corresponds to one pool body or tank, and the demarcation is clear. On the back panel of the housing, there is a quick-connect terminal block 1-6. The quick-connect terminal block 1-6 has multiple terminals, such as Figure 2 the terminals 1 to 18 shown. In the present utility model, the terminals used are 1 to 14, and subsequent expansion can be carried out according to the actual number of plug-in components. Through the quick-connect terminal block 1-6, the live wire, the neutral wire, different liquid level switches (such as liquid level float balls), the start contact output, and the fault contact output can be connected and led out in a quick-connect form from the quick-connect terminal block. At the same time, each terminal adopts an anti-reverse insertion design, which is convenient for realizing quick and accurate insertion.

[0055] As Figure 3 shown, the live wire L is introduced onto the first terminal 1 of the quick-connect terminal block 1-6. A fuse FU is provided on the live wire L. The neutral wire N is introduced onto the second terminal 2. A high liquid level control circuit, a low liquid level control circuit, a start output circuit, and a fault output circuit are connected in parallel between the live wire L and the neutral wire N. Among them, the above circuits can achieve the stop of the high liquid level and the start of the low liquid level in the pool body or tank. In order to prevent the failure of the high and low liquid levels, a very high liquid level and a very low liquid level are set, and a fault is output when triggered. The above control scheme is applicable to simple control without a control system and is not applicable to precise control, PID control, etc.

[0056] Specifically:

[0057] The high liquid level control circuit includes a high liquid level switch LS01 and a high liquid level relay coil K1 connected in series. A high liquid level indicator light 1-1 is connected in parallel with the high liquid level relay coil K1. Among them, the high liquid level switch LS01 is plugged into the third terminal 3 and the fourth terminal 4 of the quick-connect terminal block 1-6, and the high liquid level relay coil K1 is arranged inside the housing.

[0058] The low liquid level control circuit includes a low liquid level switch LS02 and a low liquid level relay coil K2 connected in series. A low liquid level indicator light 1-2 is connected in parallel with the low liquid level relay coil K2. Among them, the low liquid level switch LS02 is plugged into the fifth terminal 5 and the sixth terminal 6 of the quick-connect terminal block 1-6, and the low liquid level relay coil K2 is arranged inside the housing.

[0059] The starting output circuit includes a high liquid level contact k1, a low liquid level contact k2, a fault contact k4 and a starting relay coil K3 connected in series. A starting contact k3 is connected in parallel with the high liquid level contact k1, and a starting output indicator light 1-3 is connected in parallel with the starting relay coil K3. Among them, the high liquid level contact k1 and the starting contact k3 are normally open contacts, and the low liquid level contact k2 and the fault contact k4 are normally closed contacts. The starting contact k3 is plugged into the eleventh terminal 11 and the twelfth terminal 12 of the quick-insert terminal block 1-6, and the fault contact k4 is plugged into the thirteenth terminal 13 and the fourteenth terminal 14 of the quick-insert terminal block 1-6. The starting contact k3 is connected to an external drain switch (solenoid valve switch) or a drain pump, and the fault contact k4 is connected to an external alarm device. The starting relay coil K3, the high liquid level contact k1 and the low liquid level contact k2 are arranged inside the housing.

[0060] The fault output circuit includes a very high liquid level switch LS03 and a fault relay coil K4 connected in series. A very low liquid level switch LS04 is connected in parallel with the very high liquid level switch LS03, and a fault indicator light 1-4 is connected in parallel with the fault relay coil K4. Among them, the very high liquid level switch LS03 is plugged into the seventh terminal 7 and the eighth terminal 8 of the quick-insert terminal block 1-6, and the very low liquid level switch LS04 is plugged into the ninth terminal 9 and the tenth terminal 10 of the quick-insert terminal block 1-6. The fault relay coil K4 is arranged inside the housing.

[0061] The above-mentioned very high liquid level switch LS03, high liquid level switch LS01, low liquid level switch LS02 and very low liquid level switch LS04 are arranged in sequence from top to bottom in the pool or tank, and the drain switch or drain pump is arranged at the drain outlet of the pool or tank.

[0062] The installation method of the present utility model includes:

[0063] Step 1: First, determine the installation positions of the high and low liquid levels of the pool or tank and the type selection of the liquid level switch. At least two liquid level switches, namely the high and low liquid level switches, need to be connected to this module to achieve automatic control. It is preferred to connect the very high liquid level switch LS03, high liquid level switch LS01, low liquid level switch LS02 and very low liquid level switch LS04.

[0064] Step 2: Install the module into the power distribution cabinet or the on-site control box, and determine the PU sealing strip to ensure that the protection level is ≥IP54. The outdoor operating column can be equipped with a protective cover to ensure that it will not be wetted by rain.

[0065] Step 3: Fix the module firmly without shaking, connect the liquid level signal, output the start-stop signal to the corresponding control circuit, and the fault interlock signal to the corresponding equipment to avoid water overflow or damage to the low liquid level drain pump during operation, and ensure the integrity of the function.

[0066] The usage method of the present utility model includes:

[0067] In the drainage mode: When the high-level switch LS01 in the pool or tank is triggered, the high-level switch LS01 closes, the high-level control circuit is connected, and the high-level indicator light 1-1 lights up; the high-level relay coil K1 is energized to make the high-level contact k1 close, the start output circuit is connected, and the start output indicator light 1-3 lights up; the start relay coil K3 is energized to make the start contact k3 close, and the start contact outputs, and the drainage switch or drainage pump starts to drain; at this time, even if the liquid level drops below the trigger point of the high-level switch LS01 and the high-level contact k1 disconnects, the start output circuit will still be ensured to be connected; when the water level in the pool drains to the low-level point, the low-level switch LS02 is triggered and closed, the low-level control circuit is connected, and the low-level indicator light 1-2 lights up; the low-level relay coil K2 is energized to make the low-level contact k2 disconnect, the start output circuit is disconnected, the start contact output stops, and the drainage switch or drainage pump stops draining; this repeats to achieve starting drainage at high level and stopping drainage at low level.

[0068] When the high-level switch LS01 and the low-level switch LS02 fail, when the water level in the pool reaches the very high level or the very low level, the very high-level switch LS03 or the very low-level switch LS03 is triggered and closed, the fault output circuit is connected, and the fault indicator light 1-4 lights up; the fault relay coil K4 is energized to make the fault contact k4 disconnect, the start output circuit is disconnected, the start contact output stops, and the drainage switch or drainage pump stops draining; at the same time, the fault contact outputs an alarm interlock signal externally.

[0069] Embodiment 2:

[0070] As Figures 4 to 6 shown, the present utility model provides an automatic water inlet control module, and the difference from Embodiment 1 is that:

[0071] As Figure 6 shown, the start output circuit of Embodiment 2 includes a series connection of a low-level contact k2, a high-level contact k1, a fault contact k4, and a start relay coil K3, and a start contact k3 is connected in parallel on the low-level contact k2; the low-level contact k2 and the start contact k3 are normally open contacts, and the high-level contact k1 and the fault contact k4 are normally closed contacts; the start contact k3 is connected to an external water inlet switch or water inlet pump, and the water inlet switch or water inlet pump is arranged at the water inlet of the pool or tank.

[0072] The usage method of the present utility model includes:

[0073] In the water inlet mode: When the low-level switch LS02 in the pool or tank is triggered and closed, the low-level control circuit is connected, and the low-level indicator light 1-2 is lit; the low-level relay coil K2 is energized to make the low-level contact k2 closed, the start output circuit is connected, and the start output indicator light 1-3 is lit; the start relay coil K3 is energized to make the start contact k3 closed, the start contact outputs, and the water inlet switch or the water inlet pump starts to let water in; at this time, even if the liquid level rises above the trigger point of the low-level switch LS02 and the low-level contact k2 is disconnected, the start output circuit will still be ensured to be connected; when the water level in the pool reaches the high-level point during water inlet, the high-level switch LS01 is triggered and closed, the high-level control circuit is connected, and the high-level indicator light 1-1 is lit; the high-level relay coil K1 is energized to make the high-level contact k1 disconnected, the start output circuit is disconnected, the start contact output stops, and the water inlet switch or the water inlet pump stops letting water in; and so on repeatedly to achieve starting water inlet at low level and stopping water inlet at high level.

[0074] When the high-level switch LS01 and the low-level switch LS02 fail, when the water level in the pool reaches the very high level or the very low level, the very high-level switch LS03 or the very low-level switch LS03 is triggered and closed, the fault output circuit is connected, and the fault indicator light 1-4 is lit; the fault relay coil K4 is energized to make the fault contact k4 disconnected, the start output circuit is disconnected, the start contact output stops, and the drain switch or the drain pump stops draining; at the same time, the fault contact outputs an alarm interlock signal externally.

[0075] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A drainage automatic control module, characterized in that: include: case; The housing is provided with a high liquid level indicator light, a low liquid level indicator light, a start output indicator light, a fault indicator light and a quick-insert terminal block; A live wire is introduced into the first terminal of the quick-plug terminal block, a neutral wire is introduced into the second terminal, and a high liquid level control circuit, a low liquid level control circuit, a start output circuit and a fault output circuit are connected in parallel between the live wire and the neutral wire; The high liquid level control circuit comprises a high liquid level switch and a high liquid level relay coil connected in series, and the high liquid level relay coil is connected in parallel with the high liquid level indicator light; wherein the high liquid level switch is plugged into the third terminal and the fourth terminal of the quick-plug terminal block; The low liquid level control circuit comprises a low liquid level switch and a low liquid level relay coil connected in series, and the low liquid level relay coil is connected in parallel with the low liquid level indicator light; wherein the low liquid level switch is plugged into the fifth terminal and the sixth terminal of the quick-plug terminal block; The start output circuit includes a high liquid level contact, a low liquid level contact, a fault contact and a start relay coil connected in series, the high liquid level contact is connected in parallel with the start contact, and the start output indicator light is connected in parallel with the start relay coil; wherein the start contact is plugged into the eleventh and twelfth terminals of the quick-plug terminal block, the fault contact is plugged into the thirteenth and fourteenth terminals of the quick-plug terminal block, the start contact is connected to an external drainage switch or drainage pump, and the fault contact is connected to an external alarm device; The fault output circuit includes a high-high liquid level switch and a fault relay coil connected in series, a low-low liquid level switch is connected in parallel to the high-high liquid level switch, and a fault indicator light is connected in parallel to the fault relay coil; wherein the high-high liquid level switch is plugged into the seventh terminal and the eighth terminal of the quick-plug terminal row, and the low-low liquid level switch is plugged into the ninth terminal and the tenth terminal of the quick-plug terminal row.

2. The drainage automatic control module according to claim 1, characterized in that: The shell is also provided with a device identification area, the high liquid level indicator light, the low liquid level indicator light, the start output indicator light, the fault indicator light and the device identification area are arranged on the front side of the shell, and the quick-plug terminal block is arranged on the back side of the shell. The high liquid level indicator light, the low liquid level indicator light and the start output indicator light are green LED lights, and the fault indicator light is a red LED light.

3. The drainage automatic control module according to claim 1, characterized in that: The high liquid level relay coil, high liquid level contact, low liquid level relay coil, low liquid level contact, start relay coil and fault relay coil are installed in the shell, the high liquid level contact and start contact are normally open contacts, and the low liquid level contact and fault contact are normally closed contacts; the high-high liquid level switch, high liquid level switch, low liquid level switch, and low-low liquid level switch are arranged in sequence from top to bottom in the pool body or tank body, and the drain switch or drain pump is arranged on the drain outlet of the pool body or tank body.

4. The drainage automatic control module according to claim 1, characterized in that: The terminals of the quick-insert terminal block adopt an anti-reverse insertion design.

5. The drainage automatic control module according to any one of claims 1 to 4, characterized in that: In drainage mode, when the high liquid level switch is triggered, the high liquid level indicator light is on, the start contact output is on, and the drainage switch or drainage pump starts drainage; when drainage triggers the low liquid level switch, the low liquid level indicator light is on, and the start contact output is stopped; When the high liquid level switch and the low liquid level switch fail, the high-high liquid level switch or the low-low liquid level switch is triggered, the fault indicator light comes on, and the fault contact outputs an alarm interlock signal.

6. A water inlet automatic control module, characterized in that: include: case; The housing is provided with a high liquid level indicator light, a low liquid level indicator light, a start output indicator light, a fault indicator light and a quick-insert terminal block; A live wire is introduced into the first terminal of the quick-plug terminal block, a neutral wire is introduced into the second terminal, and a high liquid level control circuit, a low liquid level control circuit, a start output circuit and a fault output circuit are connected in parallel between the live wire and the neutral wire; The high liquid level control circuit comprises a high liquid level switch and a high liquid level relay coil connected in series, and the high liquid level relay coil is connected in parallel with the high liquid level indicator light; wherein the high liquid level switch is plugged into the third terminal and the fourth terminal of the quick-plug terminal block; The low liquid level control circuit comprises a low liquid level switch and a low liquid level relay coil connected in series, and the low liquid level relay coil is connected in parallel with the low liquid level indicator light; wherein the low liquid level switch is plugged into the fifth terminal and the sixth terminal of the quick-plug terminal block; The start output circuit includes a low liquid level contact, a high liquid level contact, a fault contact and a start relay coil connected in series, the low liquid level contact is connected in parallel with a start contact, and the start relay coil is connected in parallel with the start output indicator light; wherein the start contact is plugged into the eleventh and twelfth terminals of the quick-plug terminal block, the fault contact is plugged into the thirteenth and fourteenth terminals of the quick-plug terminal block, the start contact is connected to an external water inlet switch or water inlet pump, and the fault contact is connected to an external alarm device; The fault output circuit includes a high-high liquid level switch and a fault relay coil connected in series, a low-low liquid level switch is connected in parallel to the high-high liquid level switch, and a fault indicator light is connected in parallel to the fault relay coil; wherein the high-high liquid level switch is plugged into the seventh terminal and the eighth terminal of the quick-plug terminal row, and the low-low liquid level switch is plugged into the ninth terminal and the tenth terminal of the quick-plug terminal row.

7. The water inlet automatic control module according to claim 6, characterized in that: The shell is also provided with a device identification area, the high liquid level indicator light, the low liquid level indicator light, the start output indicator light, the fault indicator light and the device identification area are arranged on the front side of the shell, and the quick-plug terminal block is arranged on the back side of the shell. The high liquid level indicator light, the low liquid level indicator light and the start output indicator light are green LED lights, and the fault indicator light is a red LED light.

8. The water inlet automatic control module according to claim 6, characterized in that: The high liquid level relay coil, high liquid level contact, low liquid level relay coil, low liquid level contact, start relay coil and fault relay coil are installed in the shell, the low liquid level contact and start contact are normally open contacts, and the high liquid level contact and fault contact are normally closed contacts; the high-high liquid level switch, high liquid level switch, low liquid level switch, and low-low liquid level switch are arranged in sequence from top to bottom in the pool body or tank body, and the water inlet switch or water inlet pump is arranged on the water inlet of the pool body or tank body.

9. The water inlet automatic control module according to claim 6, characterized in that: The terminals of the quick-insert terminal block adopt an anti-reverse insertion design.

10. The water inlet automatic control module according to any one of claims 6 to 9, characterized in that: In the water inlet mode, when the low liquid level switch is triggered, the low liquid level indicator light is on, the start contact output, the water inlet switch or the water inlet pump starts to inlet water, and when the water inlet triggers the high liquid level switch, the high liquid level indicator light is on, and the start contact output is stopped; When the high liquid level switch and the low liquid level switch fail, the high-high liquid level switch or the low-low liquid level switch is triggered, the fault indicator light comes on, and the fault contact outputs an alarm interlock signal.

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