Gasoline engine water pump autonomous start-stop system

Abstract

The utility model provides a kind of gasoline engine water pump autonomous start-stop system, system includes: battery, water level controller, water level probe, intermediate relay, time-delay relay, starter, gasoline engine ignition controller, flameout line;Battery supplies power to water level controller, the input end of water level controller is connected with water level probe, the output end of water level controller is connected with intermediate relay, intermediate relay has two groups of normally open / closed output, one group of output is connected with flameout line, another group of output is connected with time-delay relay, time-delay relay is connected in parallel with gasoline engine ignition controller, starter is connected with gasoline engine ignition controller.The utility model detects the change of reservoir water level under the condition of no power supply environment, and needs to frequently pump water, automatically controls the start of gasoline engine water pump, and controls the flameout line bonding iron in gasoline engine water pump ignition system to realize the flameout of gasoline engine water pump.

Description

Technical Field

[0001] This utility model mainly relates to the field of automatic control of gasoline engine water pumps, and in particular to an autonomous start-stop system for gasoline engine water pumps. Background Technology

[0002] In industrial and agricultural production and daily life, there is a need to pump water according to changes in water level. For example, during the flood season, communication cable wells and sewage wells need to be pumped when the water level reaches a certain limit, otherwise it will threaten communication security or cause large-scale sewage pollution. In areas without electricity supply, electric water pumps cannot be used, and gasoline engine water pumps are required. However, these gasoline engine water pumps, whether started manually or electrically, require manual on-site operation, which is inconvenient. Operators need to frequently go to the site to check and start and stop the pumps, which is not only inefficient but also prone to operational errors due to human factors, resulting in high operating costs and low safety.

[0003] Existing technical solutions exist: While an automatic water replenishment device for a reservoir (CN222848338U) can detect water level changes to achieve automatic pumping, it still relies on an electric power source to maintain its operation. Its power is limited, making it only suitable for fixed locations with available power. The water pump control device (CN217783738U) used in new coal mining faces is still an electric water pump device requiring a power source environment, which differs from the scope of this invention. A general-purpose gasoline engine reverse start module circuit (CN207245910U) still requires manual pressing of the electric start button to achieve the gasoline engine's water pumping function, necessitating manual operation. The dual-pool water level controller (CN2358473Y) and the automatic water level controller for rural household reservoirs (CN202838045U) are among the water level controllers used in this invention's system, but their use still requires a power source environment to control the electric water pump.

[0004] This invention designs an autonomous start-stop system for a gasoline engine water pump, which can automatically control the start and stop of the gasoline engine water pump, saving manpower. Especially in environments where there is a lack of power supply and frequent water pumping is required, this invention can operate independently, and is simple in composition and low in cost, and can replace traditional electric water pumps. Summary of the Invention

[0005] This invention provides an autonomous start-stop system for a gasoline engine water pump, which can automatically control the start and stop of the gasoline engine water pump to perform drainage work by detecting the water level in the pool when there is no power or human operation.

[0006] To achieve the above objectives, this utility model provides an autonomous start-stop system for a gasoline engine water pump, characterized by comprising: a battery, a water level controller, a water level probe, an intermediate relay, a time delay relay, a starter motor, a gasoline engine ignition controller, and a shutdown wire; the battery is connected to the water level controller to supply power, the input terminal of the water level controller is connected to the water level probe, and the output terminal of the water level controller is connected to the intermediate relay, the intermediate relay having two sets of normally open / normally closed outputs, one set of outputs connected to the shutdown wire, and the other set of outputs connected to the time delay relay, the time delay relay being connected in parallel with the gasoline engine ignition controller, and the starter motor being connected to the gasoline engine ignition controller.

[0007] Specifically, the water level controller is model DF-96DK. Terminals C, D, and E of the water level controller are connected to three water level probes respectively. The output terminal N2 of the water level controller is connected to the intermediate relay A1 terminal, and the output terminal L2 is connected to the intermediate relay coil B1 terminal. Water level probe E is placed at the upper limit of the water level, and water level probe D is placed at the lower limit of the water level. Water level probe C is the ground wire, placed in the water tank below water level probe D, serving as the grounding terminal for water level detection. When the water level rises to the upper limit, water level probe E senses this and automatically starts the gasoline engine water pump to begin draining water. When the water level drops to the lower limit, it is sensed by probe D, the ignition stop wire is grounded, and the gasoline engine water pump stops draining water.

[0008] Specifically, the normally open contact NO2 of the other set of intermediate relays is connected to the negative terminal of the battery, and its common terminal COM2 is connected to the A2 terminal of the time-delay relay coil; the common terminal COM1 of the other set of intermediate relay outputs is connected to the kill line, and its normally closed contact NC1 is connected to the negative terminal of the battery. The other end of the kill line is connected to the gasoline engine ignition system. When the gasoline engine water pump starts, the kill line is open; when the water level is detected as low, the normally closed contact NC1 of the intermediate relay closes, the kill line is grounded, and the gasoline engine water pump stops running.

[0009] Specifically, the intermediate relay model is JQX-38F-3Z.

[0010] Specifically, the A2 terminal of the time delay relay coil is connected to the common output terminal COM2 of the intermediate relay group, the B2 terminal of the time delay relay is connected to the positive terminal of the battery, the normally open contact NO3 of the time delay relay output is connected to the A3 terminal of the gasoline engine ignition controller coil, and the common output terminal COM3 of the time delay relay is connected to the positive terminal of the battery.

[0011] Specifically, the time delay relay model is GRT8-B2.

[0012] Specifically, the B3 terminal of the gasoline engine ignition controller coil is connected to the common terminal COM2 of the intermediate relay output, and the normally open contact NO4 of the gasoline engine ignition controller output is connected to the positive terminal of the battery.

[0013] Specifically, the gasoline engine ignition controller is model YKW-12V-05.

[0014] Specifically, the positive terminal 2 of the starter is connected to the common terminal COM4 output by the gasoline engine ignition controller, and the negative terminal 1 of the starter is connected to the B3 terminal of the gasoline engine ignition controller coil.

[0015] The beneficial effects of this utility model are: in the absence of power supply and when frequent water pumping is required, this gasoline engine water pump autonomous start-stop system can detect changes in the water level of the reservoir, automatically control the start of the gasoline engine water pump, and stop the water pump operation by controlling the on / off switch of the shut-off wire in the gasoline engine water pump. This can achieve unattended operation, save manpower, and reduce costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a gasoline engine water pump self-starting and stopping system according to this utility model. Wherein: K0 is the water level controller, K1 is the intermediate relay, K2 is the time delay relay, K3 is the gasoline engine ignition controller, K5 is the gasoline engine ignition system, U1 is the starter motor, and LINE1 is the shutdown line. Detailed Implementation

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments. However, this explanation should not be construed as limiting the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0018] The aforementioned gasoline engine water pump autonomous start-stop system is characterized by comprising: a battery, a water level controller, a water level probe, an intermediate relay, a time delay relay, a starter motor, a gasoline engine ignition controller, and a shutdown wire; the battery is connected to the water level controller, supplying power to it; the input terminal of the water level controller is connected to the water level probe; the output terminal of the water level controller is connected to the intermediate relay; the intermediate relay has two sets of normally open / normally closed outputs; one set of outputs is connected to the shutdown wire, and the other set of outputs is connected to the time delay relay; the time delay relay is connected in parallel with the gasoline engine ignition controller; and the starter motor is connected to the gasoline engine ignition controller. Figure 1 As shown.

[0019] The L1 and N1 terminals of the water level controller are power input terminals, connected to the positive and negative terminals of the battery, respectively. The C, D, and E terminals of the water level controller are connected to three water level probes. The probe connected to terminal E is placed at the high water level limit in the pool, the probe connected to terminal D is placed at the low water level limit, and the probe connected to terminal C is placed at the lowest point below the water surface in the pool as a ground wire. The L2 output terminal of the water level controller is connected to the coil B1 terminal of the intermediate relay, and the N2 output terminal is connected to the A1 terminal of the intermediate relay. When the water level rises above the high water level limit, the L2 and N2 output terminals of the water level controller output 12V; when the water level drops below the low water level limit, the L2 and N2 output terminals of the water level controller output 0V.

[0020] The intermediate relay converts the on / off state of the water level controller into two sets of normally open and normally closed contact outputs with two low-level outputs, so as to determine the start and stop signal status of the gasoline engine. Its normally open contact NO2 is connected to the negative terminal of the battery, the common terminal COM2 of the intermediate relay output is connected to the A2 terminal of the time delay relay coil, the common terminal COM1 of the intermediate relay output is connected to the kill line, the normally closed contact NC1 of the intermediate relay output is connected to the negative terminal of the battery, and the other end of the kill line is connected to the gasoline engine ignition system.

[0021] The A2 terminal of the time delay relay coil is connected to the common output terminal COM2 of the intermediate relay group, the B2 terminal of the time delay relay is connected to the positive terminal of the battery, the normally open contact NO3 of the time delay relay output is connected to the A3 terminal of the gasoline engine ignition controller coil, and the common output terminal COM3 of the time delay relay is connected to the positive terminal of the battery.

[0022] The B3 terminal of the gasoline engine ignition controller coil is connected to the common terminal COM2 of the intermediate relay output, and the normally open contact NO4 of the gasoline engine ignition controller output is connected to the positive terminal of the battery.

[0023] The positive terminal 2 of the starter is connected to the common terminal COM4 output by the gasoline engine ignition controller, and the negative terminal 1 of the starter is connected to the B3 terminal of the gasoline engine ignition controller coil.

[0024] The circuit working principle of this utility model is as follows: When the water level in the reservoir rises above the high water level limit, the output terminal of the water level controller is turned on, outputting a 12V voltage. Current flows through the coils (A1, B1) of the intermediate relay. The normally open contact NO1 of the intermediate relay output terminal closes, and the normally closed contact NC1 opens, breaking the circuit of the ignition stop wire. At this time, the normally open contact NO2 of the intermediate relay output closes, forming a circuit through the coil of the time delay relay. The normally open contact NO3 of the time delay relay output closes, triggering the time delay relay (set to a delay of 5 seconds) to form a circuit with the gasoline engine ignition coil. The normally open contact NO4 of the gasoline engine ignition controller output closes, and the starter motor is energized and begins to run. After 5 seconds, the time delay relay resets, the normally closed contact NC3 of the time delay relay output returns to the closed state, the gasoline engine ignition controller is de-energized, and the normally closed contact NC4 of the gasoline engine ignition controller output returns to the closed state, stopping the starter motor. When the water level drops below the low water level limit, the output terminals (L2, N2) of the water level controller are de-energized, the normally closed contact NC1 of the intermediate relay is closed, the ignition stop wire is grounded, and the gasoline engine water pump stops working.

[0025] This invention enables automatic detection of water level changes and automatic pumping of water by a gasoline engine water pump within a specified water level range, even without power supply or personnel on duty.

[0026] The present invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

[0027] Through the above description of the embodiments, those skilled in the art can clearly understand that this utility model is implementable. Of course, the situations listed above are merely examples, and this utility model is not limited thereto. Those skilled in the art should understand that other modifications or simplifications of the technical solutions of this utility model can be appropriately applied to this utility model and should be included within the scope of this utility model.

Claims

1. A gasoline engine water pump autonomous start-stop system, characterized in that, The system includes: a battery, a water level controller, a water level probe, an intermediate relay, a time delay relay, a starter motor, a gasoline engine ignition controller, and a kill switch wire. The battery is connected to the water level controller to supply power. The input terminal of the water level controller is connected to the water level probe, and the output terminal of the water level controller is connected to the intermediate relay. The intermediate relay has two sets of normally open / normally closed outputs, one set of which is connected to the kill switch wire, and the other set of which is connected to the time delay relay. The time delay relay is connected in parallel with the gasoline engine ignition controller, and the starter motor is connected to the gasoline engine ignition controller.

2. The gasoline engine water pump autonomous start-stop system according to claim 1, characterized in that, The water level controller has three probes connected to terminals C, D, and E respectively. The output terminal L2 of the water level controller is connected to terminal B1 of the intermediate relay coil, and the output terminal N2 of the water level controller is connected to terminal A1 of the intermediate relay coil. The high water level probe at terminal E is used to detect the upper limit of the water level, and the low water level probe at terminal D is used to detect the lower limit of the water level. The probe at terminal C is placed in the water tank at a position lower than point D, serving as the grounding terminal for water level detection.

3. The gasoline engine water pump autonomous start-stop system according to claim 1, characterized in that, One set of intermediate relays has its normally open contact NO2 connected to the negative terminal of the battery, and its common terminal COM2 connected to the A2 terminal of the time delay relay coil; the other set of intermediate relays has its common terminal COM1 connected to the kill line, its normally closed contact NC1 connected to the negative terminal of the battery, and the other end of the kill line connected to the gasoline engine ignition system.

4. The gasoline engine water pump autonomous start-stop system according to claim 1, characterized in that, The A2 terminal of the time delay relay coil is connected to the common output terminal COM2 of the intermediate relay group, the B2 terminal of the time delay relay is connected to the positive terminal of the battery, the normally open contact NO3 of the time delay relay output is connected to the A3 terminal of the gasoline engine ignition controller coil, and the common output terminal COM3 of the time delay relay is connected to the positive terminal of the battery.

5. The gasoline engine water pump autonomous start-stop system according to claim 1, characterized in that, The B3 terminal of the gasoline engine ignition controller coil is connected to the common terminal COM2 of the intermediate relay output, and the normally open contact NO4 of the gasoline engine ignition controller output is connected to the positive terminal of the battery.

6. The gasoline engine water pump autonomous start-stop system according to claim 1, characterized in that, The positive terminal 2 of the starter is connected to the common terminal COM4 output by the gasoline engine ignition controller, and the negative terminal 1 of the starter is connected to the B3 terminal of the gasoline engine ignition controller coil.

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