Engine with high-temperature protection function for mower

Abstract

The utility model relates to the technical field of mowing machine driving, and discloses an engine with a high-temperature protection function for a mowing machine, which comprises an engine main body, a temperature sensor is fixedly arranged in the middle of the front end face of the engine main body, and a heat insulation pad is fixedly arranged at the top of the rear end face of the engine main body. A relay is fixedly arranged at the bottom of the rear end face of the heat insulation pad. According to the engine, the temperature sensor is arranged at the front end of the engine, the temperature sensor can monitor the temperature of the engine in real time when the engine works, and when the temperature is too high, the relay works to cut off the current of the oil pump to achieve oil cut-off, so that the engine is in a flameout state; the situation that parts of the engine are damaged due to continuous working in the high-temperature state is avoided, meanwhile, the buzzer makes a sound to remind workers that oil is cut off due to high temperature, and the engine needs to be cooled, and therefore high-temperature protection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mower driving, in particular to an engine with a high temperature protection function for a lawn mower. Background Art

[0002] A lawn mower is a mechanical device used to cut grass or grass. It usually consists of a blade or blades that rotate to cut the overgrown grass or weeds on the lawn. Lawn mowers usually use a gasoline engine or a diesel engine as a power source. Gasoline engines are usually used in domestic lawn mowers, and diesel engines are usually used in commercial or large lawn mowers.

[0003] Traditional lawn mower engines tend to generate high temperatures after long-term use, which can cause the engine and other components to overheat, increasing the risk of wear and damage to the machine. Long-term high-temperature operation may cause aging and damage to engine components, affecting the performance and life of the lawn mower.

[0004] Therefore, those skilled in the art provide an engine with a high temperature protection function for a lawn mower to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and an engine with high-temperature protection function for a lawn mower is proposed. A temperature sensor is arranged at the front end of the engine. When the engine is working, the temperature sensor can monitor the engine temperature in real time. When the temperature is too high, the relay works to cut off the current of the oil pump to cut off the oil, so that the engine is in a flameout state, avoiding the situation where the engine parts are damaged due to continued operation under high temperature. At the same time, a buzzer sounds to remind the staff that the oil is cut off due to high temperature and the engine needs to be cooled down, thereby achieving high-temperature protection.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An engine with a high-temperature protection function for a lawn mower comprises an engine body, a temperature sensor is fixedly arranged in the middle of the front end face of the engine body, a heat insulation pad is fixedly arranged on the top of the rear end face of the engine body, a relay is fixedly arranged on the bottom of the rear end face of the heat insulation pad, an oil pot is fixedly arranged on the bottom of the front end face of the engine body, an oil pipe is fixedly arranged on the top of the oil pot, an oil pump is fixedly arranged in the middle of the oil pipe, the oil pump is fixedly connected to a side wall of the engine body, a fuel nozzle is fixedly arranged on one side of the top of the engine body, the fuel pipe is fixedly connected to the fuel nozzle away from the oil pot, and a buzzer is fixedly arranged on the top of the rear end face of the heat insulation pad.

[0008] Through the above technical solution, a temperature sensor is set at the front end of the engine to monitor the engine temperature in real time. When the temperature is higher than the normal operating temperature of the engine, the relay cuts off the circuit of the oil pump to cut off the oil supply, thereby avoiding the impact of the engine working in a high temperature state on the components and realizing high temperature protection of the engine.

[0009] Furthermore, a driving shaft is provided at the middle of the bottom end of the engine body, a fan is fixedly provided at one side of the driving shaft, a protective frame is fixedly provided at one side of the engine body close to the fan, and isolation nets are fixedly provided at both sides of the protective frame;

[0010] Through the above technical solution, a fan is arranged on one side of the driving shaft. When the engine drives the driving shaft to work, the fan is driven to rotate, accelerating the air flow and cooling the outer wall of the engine, thereby improving the active heat dissipation capacity of the engine. The fan is isolated from the isolation net by a protective frame to prevent the fan from cutting the staff.

[0011] Furthermore, the engine body is provided with four threaded holes on a side away from the fan;

[0012] Furthermore, bolts are threadedly arranged inside the four threaded holes;

[0013] Through the above technical solution, the engine can be installed and connected to the lawn mower through bolts and threaded holes.

[0014] Furthermore, an oil filling port is fixedly provided on one side of the top of the oil pot;

[0015] Through the above technical solution, the oil filling port can be used to fill the oil pot with fuel.

[0016] Further, the relay is electrically connected to the oil pump;

[0017] Through the above technical solution, the relay is electrically connected to the oil pump, and the relay can control the operation of the oil pump.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model proposes an engine with high-temperature protection function for a lawn mower. A temperature sensor is arranged at the front end of the engine. When the engine is working, the temperature sensor can monitor the engine temperature in real time. When the temperature is too high, the relay will work to cut off the current of the oil pump to cut off the oil, so that the engine is in a flameout state, avoiding the situation where the engine parts are damaged due to continued operation under high temperature. At the same time, a buzzer sounds to remind the staff that the oil is cut off due to high temperature and the engine needs to be cooled down, thereby achieving high-temperature protection.

[0020] 2. The utility model proposes an engine with high-temperature protection function for a lawn mower. A fan is arranged on the transmission shaft of the engine. When the lawn mower is working, the transmission shaft can drive the fan to cool the outer wall of the engine. The fan is isolated from the isolation net by a protective frame to avoid the fan cutting the staff. The engine can be cooled so that the temperature is not too high, the active cooling capacity is improved, and the engine is more durable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a left side axonometric view of an engine with a high temperature protection function for a lawn mower proposed by the utility model;

[0022] Figure 2 This is a right side isometric view of an engine with a high temperature protection function for a lawn mower proposed by the utility model;

[0023] Figure 3 This is an exploded view of the right side of an engine with high temperature protection function for a lawn mower proposed by the utility model;

[0024] Figure 4 This is a rear end isometric view of an engine with a high temperature protection function for a lawn mower proposed by the utility model;

[0025] Figure 5 This is a left side exploded view of an engine with high temperature protection function for a lawn mower proposed by the utility model.

[0026] Legend:

[0027] 1. Engine body; 2. Oil can; 3. Oil filling port; 4. Oil pipe; 5. Bolts; 6. Oil pump; 7. Heat insulation pad; 8. Fuel injector; 9. Buzzer; 10. Temperature sensor; 12. Protective frame; 13. Isolation net; 14. Fan; 15. Drive shaft; 16. Relay; 17. Threaded hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. In the description of this application, it should be noted that the terms used here are only for describing specific implementations, and are not intended to limit the exemplary implementations according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals 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 discussed in subsequent drawings.

[0029] Reference Figure 1-5 , an embodiment provided by the utility model:

[0030] An engine with a high-temperature protection function for a lawn mower comprises an engine body 1, a temperature sensor 10 is fixedly arranged in the middle of the front end face of the engine body 1, a heat insulation pad 7 is fixedly arranged on the top of the rear end face of the engine body 1, a relay 16 is fixedly arranged on the bottom of the rear end face of the heat insulation pad 7, an oil pot 2 is fixedly arranged on the bottom of the front end face of the engine body 1, an oil pipe 4 is fixedly arranged on the top of the oil pot 2, an oil pump 6 is fixedly arranged in the middle of the oil pipe 4, the oil pump 6 is fixedly connected to a side wall of the engine body 1, a fuel injection nozzle 8 is fixedly arranged on one side of the top of the engine body 1, the fuel pipe 4 is fixedly connected to the fuel injection nozzle 8 away from the side of the oil pot 2, a buzzer 9 is fixedly arranged on the top of the rear end face of the heat insulation pad 7, a temperature sensor 10 is arranged at the front end of the engine to monitor the engine temperature in real time, when the temperature is higher than the normal operating temperature of the engine, the relay 16 cuts off the circuit of the oil pump 6 to cut off the oil, thereby avoiding the influence of the engine working in a high temperature state on the components, and realizing the high temperature protection of the engine.

[0031] A driving shaft 15 is provided at the middle of the bottom end of the engine body 1, and a fan 14 is fixedly provided on one side of the driving shaft 15. A protective frame 12 is fixedly provided on the side of the engine body 1 close to the fan 14, and isolation nets 13 are fixedly provided on both sides of the protective frame 12. The fan 14 is provided on one side of the driving shaft 15. When the engine drives the driving shaft 15 to work, the fan 14 is driven to rotate, accelerating the air flow and cooling the outer wall of the engine, thereby improving the active heat dissipation capacity of the engine. The fan 14 is isolated from the isolation net 13 by the protective frame 12 to prevent the fan 14 from cutting the staff. Four threaded holes 17 are provided on the side of the engine body 1 away from the fan 14, and bolts 5 are threadedly provided inside the four threaded holes 17. The engine can be installed and connected to the lawn mower through the bolts 5 and the threaded holes 17. An oil filling port 3 is fixedly provided on one side of the top of the oil pot 2, and the oil filling port 3 can be used to fill the oil pot 2 with fuel. The relay 16 is electrically connected to the oil pump 6, and the relay 16 is electrically connected to the oil pump 6. The relay 16 can control the operation of the oil pump 6.

[0032] Working principle: A temperature sensor 10 is arranged at the front end of the engine to monitor the engine temperature in real time. When the temperature is higher than the normal working temperature of the engine, the relay 16 cuts off the circuit of the oil pump 6 to cut off the oil, thus avoiding the impact of the engine working in a high temperature state on the components and realizing the high temperature protection of the engine. A fan 14 is arranged on one side of the drive shaft 15. When the engine drives the drive shaft 15 to work, the fan 14 is driven to rotate, accelerating the air flow and cooling the outer wall of the engine, thereby improving the active heat dissipation capacity of the engine. The fan 14 is isolated from the isolation net 13 by the protective frame 12 to avoid the fan 14 from cutting the staff.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine with a high temperature protection function for a lawn mower, comprising an engine body (1), characterized in that: A temperature sensor (10) is fixedly arranged in the middle of the front end face of the engine body (1), a heat insulation pad (7) is fixedly arranged at the top of the rear end face of the engine body (1), a relay (16) is fixedly arranged at the bottom of the rear end face of the heat insulation pad (7), an oil pot (2) is fixedly arranged at the bottom of the front end face of the engine body (1), an oil pipe (4) is fixedly arranged at the top of the oil pot (2), an oil pump (6) is fixedly arranged in the middle of the oil pipe (4), the oil pump (6) is fixedly connected to a side wall of the engine body (1), an oil nozzle (8) is fixedly arranged on one side of the top of the engine body (1), the oil pipe (4) is fixedly connected to the oil nozzle (8) on a side away from the oil pot (2), and a buzzer (9) is fixedly arranged at the top of the rear end face of the heat insulation pad (7).

2. The engine with high temperature protection function for a lawn mower according to claim 1, characterized in that: A drive shaft (15) is provided at the middle of the bottom end of the engine body (1), a fan (14) is fixedly provided on one side of the drive shaft (15), a protective frame (12) is fixedly provided on the side of the engine body (1) close to the fan (14), and isolation nets (13) are fixedly provided on both sides of the protective frame (12).

3. The engine with high temperature protection function for a lawn mower according to claim 1, characterized in that: Four threaded holes (17) are provided on a side of the engine body (1) away from the fan (14).

4. The engine with high temperature protection function for a lawn mower according to claim 3, characterized in that: Bolts (5) are threadedly arranged inside the four threaded holes (17).

5. The engine with high temperature protection function for a lawn mower according to claim 1, characterized in that: An oil filling port (3) is fixedly provided on one side of the top of the oil pot (2).

6. The engine with high temperature protection function for a lawn mower according to claim 1, characterized in that: The relay (16) is electrically connected to the oil pump (6).

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