Engine oil alarm for mini-tiller

Abstract

The invention discloses an engine oil alarm for a mini-tiller, which is characterized in that a processor is arranged in a body, and the processor is a microprocessor with a processing program or a chip module; a first flameout line, a second flameout line and an engine oil sensor are further arranged, the first flameout line, the second flameout line and the engine oil sensor are electrically connected with the processor, and the engine oil sensor inputs monitored engine oil liquid level height signals or pressure signals in the oil tank into the processor; the processor sends out a control signal through calculation, so that the first flameout wire generates a corresponding action, and a flameout switch of the mini-tiller is driven to generate a flameout action; the body is also provided with a grounding end. According to the alarm, through the arrangement of the first flameout line and the second flameout line which are connected with the flameout switch of the mini-tiller and the flameout line of the igniter respectively, when the processor monitors the condition of engine oil deficiency, the control signals can be directly generated, the flameout switch is turned on, and an engine can be shut down immediately to protect related parts of the engine; and the damage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of micro-tillage machine generators, and in particular to an oil alarm for a micro-tillage machine engine. Background Art

[0002] my country's hilly and mountainous areas are mostly composed of irregular surfaces and slopes. With the increase of population aging, the rural labor force is decreasing. Various agricultural machinery is needed to help and replace villagers in heavy physical labor. Micro-tillage machines play a great role in replacing manpower in agricultural production and can significantly reduce the labor burden of villagers.

[0003] The engine of a tiller is the main power unit; the lubrication system of the engine plays an important role in lubricating rotating parts, such as providing oil for lubrication and cooling of pistons, flywheels, transmission gears and other parts. If the engine lacks oil lubrication during operation, the relevant parts of the engine may be damaged immediately or even scrapped. In the prior art, a variety of detection and alarm devices are provided for the engine oil to dynamically monitor the liquid level (volume) of the oil in the tank, and alarm when the liquid level is lower than the set position to remind the operator to pay attention and add oil in time to ensure the normal operation of the engine.

[0004] For example, Chinese utility model patent CN2622842Y, entitled "Parallel reed switch alarm device for a general-purpose generator set", discloses an alarm device comprising an oil level switch (6), a reed switch (3), and a buoy (5) with a magnetic ring (4), wherein the oil level switch (6) is provided with two reed switches (3) in the cavity, the two reed switches (3) are provided with buoys (5) with magnetic rings (4) on the outer tubes, one end of the two reed switches (3) is connected to the ground, and the other ends are connected to the flameout switch (1) and the indicator light (2) respectively; the present invention enables the two reed switches to be opened and closed by means of the buoy with a magnetic ring installed in the cavity of the oil level switch so as to float up and down with the change of the oil level, thereby enabling the flameout switch and the indicator light to work; the engine cannot be started when the oil is not filled enough, and an alarm is displayed.

[0005] However, the main deficiencies of the oil alarm device in the prior art are as follows: first, the engine is usually in working condition when the alarm sounds, and the engine used in conjunction with the micro-tiller has an uneven working site, large bumps, etc., which causes the oil level sensed by the sensor to change greatly, and the accuracy is poor, and it cannot accurately reflect the actual liquid level of the oil. When the oil is missing, it may not be able to prompt or alarm in time; second, it is not directly connected to the engine shutdown switch, and the linkage is poor. Even if the liquid level is lower than the process set height and is in an oil missing state, it cannot be directly shut down, which poses a safety hazard; third, the overall structure is relatively complicated, and it is inconvenient to install and disassemble. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide an oil alarm for a micro-tiller to solve the problems of the prior art such as poor accuracy in detecting the oil level, poor linkage, and inability to directly shut down the engine.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: An oil alarm for a micro-tillage machine comprises a body, characterized in that: a processor is arranged in the body, the processor is a microprocessor or a chip module, and has a processing program, performs calculations according to the internal processing program, and outputs a control signal; A first flameout line, a second flameout line and an oil sensor are also provided, the first flameout line, the second flameout line and the oil sensor are respectively connected to the processor, and the oil sensor inputs the oil level height signal or pressure signal monitored in the oil tank into the processor; After calculation, the processor sends out a control signal to make the first flameout line produce a corresponding action, driving the flameout switch of the micro-tillage machine to produce a flameout action; a grounding terminal is also arranged on the body.

[0008] In this way, the alarm of the present invention can directly generate a control signal to turn on the flameout switch of the micro-tiller and the flameout line of the ignition through the first and second flameout lines respectively set to connect to the flameout switch of the micro-tiller and the flameout line of the ignition, when the processor detects the lack of engine oil, thereby directly producing a linkage effect and being able to immediately shut down the engine to protect the relevant components of the engine and avoid damage thereto.

[0009] Furthermore: the processor sets a set speed n in the processing program therein. After the engine starts and reaches the set speed n, it starts to measure or receive the measurement signal sent by the oil sensor. If the speed is lower than the set speed n, it does not measure or receive the measurement signal sent by the oil sensor. A set time length T for detection is also set. After the engine reaches the set speed n, if the set time length T is exceeded, it does not measure or receive the measurement signal sent by the oil sensor.

[0010] In this way, the sensor of the present invention only measures within a set period of time T after the speed reaches the set speed n at the initial stage of the engine startup phase. During this time, the micro-tiller basically does not move, and the oil level is not affected by the bumps and tilts generated when the micro-tiller moves, which ensures the stability of the oil level during measurement and improves the measurement accuracy.

[0011] Furthermore, the set speed n is 800 rpm, and the set time length T is in the range of 1.8 + 0.2 sec.

[0012] Furthermore, a mounting portion is also provided on the main body, and the mounting hole provided on the mounting portion makes it easy to install and disassemble.

[0013] Furthermore, a main body part is arranged on the main body, a cavity is arranged in the main body part, and the processor is installed in the cavity. Installing the processor in the cavity produces a strong protective effect to prevent the processor from being accidentally damaged.

[0014] Furthermore: the processor is placed in the cavity and encapsulated with epoxy resin, and after curing, the processor is sealed in the cavity. After encapsulation with epoxy resin, a waterproof and dustproof closed structure is formed, which produces a stronger protective effect. Furthermore, the main body part is a rectangular parallelepiped structure, the mounting part is connected to the main body part, and the axis of the mounting part is perpendicular to the axis of the main body part, forming an optimized overall structure, which is convenient for installation and disassembly.

[0015] Furthermore, one or more reinforcing blocks are arranged between the mounting portion and the main body portion of the body, so as to enhance the overall strength and rigidity, and facilitate installation and disassembly.

[0016] Furthermore, the cavity is a rectangular parallelepiped structure, and the mounting portion is an arc-shaped structure. The rectangular parallelepiped structure is convenient for installing the processor, wiring, and the like.

[0017] During installation and connection, the first flameout wire and the second flameout wire are respectively connected to the flameout switch of the micro-tillage machine and the flameout wire on the ignition device of the micro-tillage machine to form a conductive circuit.

[0018] Compared with the prior art, the present invention has the following advantages: 1. The alarm of the present invention is provided with a first and a second flameout line, which are respectively connected to the flameout switch of the micro-tiller and the flameout line of the igniter. When the processor detects the lack of engine oil, it can directly generate a control signal to turn on the flameout switch, directly produce a linkage effect, and can immediately shut down the engine to protect the relevant components of the engine and avoid damage to them.

[0019] 2. The processor of the present invention is set so that at the initial stage of engine startup, after the rotation speed reaches a set speed, the sensor measures the oil level height, and the measurement only lasts for a set short period of time. After the set time is exceeded, no measurement is performed. When measuring during this time period, the micro-tillage machine basically does not move, and the micro-tillage machine basically has no bumps or tilts. The oil level is not affected by the bumps and tilts caused by the micro-tillage machine when it moves, thereby ensuring the stability of the oil level during measurement and improving the measurement accuracy.

[0020] 3. The entire alarm device is installed at a suitable position on the surface of the tiller engine, which is very convenient for installation, disassembly and maintenance.

[0021] 4. The entire alarm device has a simple structure and small components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a right view structural schematic diagram of the main body of the present invention; Figure 3 It is a schematic diagram of the top view of the structure of the main body of the present invention; Figure 4 It is a schematic diagram of the working circuit principle of the alarm of the present invention.

[0023] In the figure: 1 - main body, 2 - processor, 3 - first flameout line, 4 - second flameout line, 5 - oil sensor, 6 - ground terminal, 7 - mounting part, 8 - mounting hole, 9 - main body part, 10 - cavity, 11 - reinforcement block. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example: See Figure 1As shown in FIG. 4 , the oil alarm for a micro-tiller of the present invention comprises a body 1, in which a processor 2 is arranged, and the processor 2 is a microprocessor (single-chip microcomputer) or a chip module with a processing program, and performs logical operations according to the internal processing program to output a control signal; a first flameout line 3, a second flameout line 4 and an oil sensor 5 are also arranged, and the first flameout line 3, the second flameout line 4 and the oil sensor 5 are electrically connected to the processor 2 respectively, and the oil sensor 5 inputs the monitored oil level height signal or pressure signal in the oil tank into the processor 2; when installed and connected, the first flameout line 3 and the second flameout line 4 of the present invention ... respectively, and the first flameout line 3 and the second flameout line 4 of the present invention are electrically connected to the processor 2 respectively, and the oil sensor 5 inputs the monitored oil level height signal or pressure signal in the oil tank into the processor 2 respectively, and the first flameout line 3 and the second flameout line 4 of the present invention are electrically connected to the processor 2 respectively, and the oil sensor 5 inputs the monitored oil level height signal or pressure signal in the oil tank into the processor 2 respectively, and the first flameout line 3 and the second flameout line 4 of the present invention are electrically connected to the processor 2 respectively, and the oil sensor 5 inputs the monitored oil level height signal or pressure Line 4 is respectively connected to the flameout switch of the micro-tiller and the flameout line on the ignition of the micro-tiller to form a conductive circuit; when the processor 2 calculates and determines that the engine oil is in a missing state (the engine oil level reaches or is lower than the set height value, or the engine oil pressure change reaches the set value), the processor 2 sends a control signal to prompt the first flameout line 3 connected to the flameout switch of the micro-tiller to produce a corresponding action, driving the flameout switch of the micro-tiller to produce a flameout action, thereby directly driving the engine to shut down. When the engine oil is missing, a linkage effect is directly generated, which can cause the engine to shut down immediately to protect the relevant components of the engine and avoid damage to them.

[0028] The processor 2 of the present invention sets a set speed n in the processing program therein. For example, if n is set to 800 rpm, the engine starts and reaches the set speed n before sending a signal to the oil sensor 5 to start measuring or receiving the measurement signal sent by the oil sensor 5. If the speed is lower than the set speed n, the oil sensor 5 will not measure or receive the measurement signal sent by the oil sensor 5. The set time length T for detection is also set. For example, if T is 1.8 + Within the range of 0.2 seconds, or other time lengths required by the process, after the engine reaches the set speed n, the detection period is set to a time length T. If the set time length T is exceeded, the measurement signal sent by the oil sensor 5 will not be measured or received; in this way, it can be ensured that the measuring device of the present invention only performs measurements within a set period of time T after the speed reaches the set speed n at the initial stage of the engine start-up phase. During this time, the micro-tillage machine basically does not move, and the oil level is not affected by the bumps and tilts generated when the micro-tillage machine moves, which ensures the stability of the oil level during measurement and improves the measurement accuracy.

[0029] In one embodiment structure, the specific model of the processor 2 of the present invention is selected as PIC12F609, which can meet the needs of the present invention.

[0030] The main body 1 is also provided with a grounding terminal 6, through which the possible electrostatic charge is passed to the ground to protect the alarm of the present invention. The oil sensor 5 adopts an existing oil level sensor or pressure sensor, obtains monitoring data through the change of oil level height or oil pressure, is arranged in the oil tank, and usually has a float that can float up and down, senses the height position change or pressure change of the oil, and sends and transmits it to the matching processor 2.

[0031] A mounting portion 7 is also provided on the main body 1, and the alarm of the present invention can be quickly and effectively placed at a required position through a mounting hole 8 provided on the mounting portion 7; during specific installation, a screw rod or a screw is provided in the mounting hole 8, and the alarm of the present invention is installed on the engine through the screw rod or the screw; specifically, an installation station is provided at a suitable position on the surface of the engine, and the alarm is connected to the installation station through the screw rod or the screw, which facilitates installation, disassembly, maintenance and other operations.

[0032] In order to protect the processor 2 of the present invention, a main body part 9 is set on the main body 1, and a cavity 10 is set in the main body part 9. The processor 2 electrically connected with other components of the micro-tillage machine is loaded into the cavity 10 and encapsulated with epoxy resin. After curing, the processor 2 is sealed in the cavity 10 to form a protective layer structure for the processor 2 in the cavity 10.

[0033] In order to facilitate installation and simplify the structure, the main body part 9 is a rectangular parallelepiped structure, and the cavity 10 is also a rectangular parallelepiped structure for easy installation and placement of the processor 2. The mounting portion 7 is an arc-shaped structure, connected to the main body part 9, and the axis of the mounting portion 7 is perpendicular to the axis of the main body part 9. In order to enhance the overall strength, one or more reinforcing blocks 11 are provided between the mounting portion 7 and the main body part 9, which facilitates and quickly connects and enhances the overall structural strength.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Those skilled in the art should understand that those modifications or equivalent substitutions of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution should be included in the scope of the claims of the present invention.

Claims

1. An oil alarm for a micro-tillage machine, comprising a body (1), characterized in that: A processor (2) is provided in the body (1), wherein the processor (2) is a microprocessor or a chip module, and has a processing program, performs calculations according to the internal processing program, and outputs control signals; A first flameout line (3), a second flameout line (4) and an oil sensor (5) are also provided. The first flameout line (3), the second flameout line (4) and the oil sensor (5) are electrically connected to the processor (2) respectively. The oil sensor (5) inputs a monitored oil level height signal or a pressure signal in the oil tank into the processor (2); After calculation, the processor (2) sends a control signal to cause the first flameout line (3) to produce a corresponding action, thereby driving the flameout switch of the micro-tillage machine to produce a flameout action; a grounding terminal (6) is also provided on the body (1).

2. The oil alarm for a micro-tillage machine according to claim 1, characterized in that: The processor (2) is provided with a set speed n in its processing sequence. After the engine is started and reaches the set speed n, the oil sensor (5) starts to measure or starts to receive the measurement signal sent by the oil sensor (5). If the speed is lower than the set speed n, the measurement signal sent by the oil sensor (5) is not measured or received. A set detection time length T is also provided. After the engine reaches the set speed n, if the set time length T is exceeded, the measurement signal sent by the oil sensor (5) is not measured or received.

3. The oil alarm for a micro-tillage machine according to claim 2, characterized in that: The set speed n is 800 rpm, and the set time length T is in the range of 1.8 + 0.2 sec.

4. The oil alarm for a micro-tillage machine according to any one of claims 1 to 3, characterized in that: A mounting portion (7) is also provided on the main body (1), through which a mounting hole (8) is provided on the mounting portion (7).

5. The oil alarm for a micro-tillage machine according to claim 4, characterized in that: A main body portion (9) is arranged on the main body (1), a cavity (10) is arranged in the main body portion (9), and a processor (2) is installed in the cavity (10).

6. The oil alarm for a micro-tillage machine according to claim 5, characterized in that: The processor (2) is loaded into the cavity (10) and encapsulated with epoxy resin, and after curing, the processor (2) is sealed in the cavity (10).

7. The oil alarm for a micro-tillage machine according to claim 5, characterized in that: The main body portion (9) is a rectangular parallelepiped structure, the mounting portion (7) is connected to the main body portion (9), and the axis of the mounting portion (7) is perpendicular to the axis of the main body portion (9).

8. The oil alarm for a micro-tillage machine according to claim 4, characterized in that: One or more reinforcement blocks (9) are arranged between the mounting portion (7) and the main body portion (9).

9. The oil alarm for a micro-tillage machine according to claim 5, characterized in that: The cavity (10) is a rectangular parallelepiped structure, and the mounting portion (7) is an arc-shaped structure.

10. The oil alarm for a micro-tillage machine according to claim 4, characterized in that: During installation and connection, the first flameout wire (3) and the second flameout wire (4) are respectively connected to the flameout switch of the micro-tillage machine and the flameout wire on the ignition device of the micro-tillage machine to form a conductive circuit.

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