Gasoline engine cooling system structure

Abstract

The utility model discloses an engine cooling system structure of a gasoline engine, which comprises two groups of heat dissipation machine shells which are designed in a bilateral symmetry manner, and connecting bolts are in threaded connection with two sides of the heat dissipation machine shells close to the outside. When the engine main body is started, air can enter the heat dissipation machine shell to completely wrap the engine main body and the heat dissipation box, the air gathering pipe gathers air, the air dissipation pipe dissipates air, the amount of air sucked into the heat dissipation machine shell is guaranteed, the two sets of cooling systems conduct external cooling and internal cooling on the engine, the cooling efficiency is improved, and the service life of the engine is prolonged. The problem that heat radiation metal hardness of part of functional parts is reduced due to the fact that a heat dissipation box and an engine body are exposed outside in the past, heat is high after starting, the engine body can only be cooled through the heat dissipation box and a draught fan, and the cooling efficiency of the heat dissipation machine shell on the engine body and the heat dissipation box is improved.

Description

Technical Field

[0001] The utility model relates to the field of gasoline engines, in particular to a gasoline engine cooling system structure. Background Art

[0002] A gasoline engine is an engine that operates by internal combustion and mainly uses gasoline as fuel. The working principle of a gasoline engine is to convert chemical energy into mechanical energy. Its core process includes four steps: intake, compression, combustion (or ignition) and exhaust. These steps are performed in a cycle, driving the engine piston to reciprocate, and then transmitting this motion to the output shaft through the crank-connecting rod mechanism, thereby driving a car or other machinery. The characteristics of a gasoline engine include high speed, light weight, low noise, easy starting, and relatively low maintenance costs.

[0003] The existing gasoline engine is a single-cylinder four-stroke engine connected to a fuel tank. A radiator is arranged under the fuel tank and the engine to take away the heat generated by the engine. However, a single radiator has a poor heat dissipation effect when dissipating heat from the engine and is prone to cause heat radiation to functional parts. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing heat dissipation method is to dissipate heat from the engine through a separate radiator, dust is easily accumulated near the air inlet, resulting in reduced heat dissipation effect, and the heat dissipation efficiency of a single air inlet is low.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a gasoline engine cooling system structure, including a heat sink casing, the heat sink casing has two groups of left-right symmetrical designs, both sides of the heat sink casing are threadedly connected with connecting bolts near the external position, the inner side of the heat sink casing is clamped with an engine body near the front top position, the bottom of the engine body is fixedly connected with a heat sink, the rear end of the heat sink is fixedly connected with a fan, the front end of the heat sink casing is fixedly connected with an air outlet, the rear end of the heat sink casing is abutted with a cover plate near the bottom position, the rear end of the cover plate is fixedly connected with a dispersion duct, the dispersion duct is arranged in a quadrangular pyramid, the rear end of the dispersion duct is fixedly connected with an air gathering duct, and the air gathering duct is arranged in an inverted quadrangular pyramid.

[0006] The above-mentioned parts enable the heat dissipation casing to wrap the power generation equipment and cool it uniformly, which solves the problem of low cooling efficiency and metal fatigue of some functional parts caused by cooling only in one position in the past, and improves the cooling effect of the equipment on the engine body.

[0007] The utility model is further configured that a fixing bolt is threadedly connected inside the air dispersion duct near the outer side, and one end of the fixing bolt away from the cover plate is threadedly connected to the rear end of the heat dissipation housing near the bottom.

[0008] The utility model is further configured such that the rear end of the engine body is fixedly connected to a fuel tank body, the front end of the heat sink is fixedly connected to a muffler, the top of the heat sink casing near the left rear end is fixedly connected to a fuel tank cover, and the fuel tank cover is connected to the fuel tank body.

[0009] The utility model is further configured such that the oil tank body is engaged at a rear end position near the top of the inner side of the heat dissipation housing, an auxiliary connection port is abutted at the lower side of the oil tank body, and the auxiliary connection port is configured in an inwardly concave shape.

[0010] The utility model is further configured such that a maintenance start plate is slidably connected to the top of the heat dissipation casing near the left front end, a sealing cover is threadedly connected below the maintenance start plate on the left side of the heat dissipation casing, and the interior of the sealing cover is connected to the heat dissipation box.

[0011] The above parts enable the coolant to be added through the sealing cover when the heat sink casing is in operation, and the inside of the heat sink casing to be inspected by sliding the inspection start plate, thus solving the problem of the previous integrated structure requiring the connecting bolts to be turned to disassemble the heat sink casing for inspection, thereby improving the convenience of maintenance and repair.

[0012] The utility model is further configured such that an air inlet is opened at the rear of the heat dissipation housing near the bottom, a dust shielding plate is fixedly connected inside the air inlet, and the dust shielding plates have a total of a plurality of groups in a linear array at the front end of the dust shielding plates.

[0013] The utility model is further configured that a filter plate is arranged at the rear of the fan, the filter plate is fixedly connected to the inside of the heat dissipation casing near the rear and near the bottom, and the filter plate abuts against the front end of the dust shielding plate.

[0014] The utility model is further configured such that the auxiliary connection port is fixedly connected to the rear end of the heat dissipation housing near the top, a handle is fixedly connected to the top of the heat dissipation housing, and an anti-slip sticker is glued to the outside of the handle.

[0015] The above parts enable the heat sink casing to be moved by simply holding it outside the handle, thus solving the complexity of the previous heavy engine that needs to be bundled before transportation, and improving the convenience of transporting the heat sink casing.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model can fully wrap the engine body and the radiator box by allowing air to enter the heat sink casing when the engine body is started, and the air collecting duct collects the air and the air dispersing duct disperses the air, thereby ensuring the amount of air sucked into the heat sink casing. The two cooling systems perform external and internal cooling on the engine, thereby improving the cooling efficiency, and solving the problem that the radiator box and the engine body are exposed to the outside, and the high heat after starting can only be cooled by the radiator box and the fan to cool the engine body, resulting in a reduction in the metal hardness of some functional parts causing heat radiation, thereby improving the cooling efficiency of the heat sink casing for the engine body and the radiator box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the main structural diagrams of the utility model;

[0019] Figure 2 This is the second schematic diagram of the main structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 5 For the utility model Figure 4 Enlarged structural diagram at B in the middle.

[0023] In the figure: 1. heat sink casing; 2. engine body; 3. heat sink; 4. fan; 5. muffler; 6. air outlet; 7. fuel tank body; 8. fuel tank cap; 9. sealing cover; 10. maintenance start plate; 11. handle; 13. auxiliary connection port; 14. air inlet; 15. filter plate; 16. cover plate; 17. fixing bolts; 18. air dispersion duct; 19. air collection duct; 20. connecting bolts. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] See also Figure 1 - Figure 5A gasoline engine cooling system structure includes a heat sink 1. The heat sink 1 has two groups of left-right symmetrical designs. The heat sink 1 has two connecting bolts 20 threadedly connected near the outer position on both sides. The engine body 2 is clamped near the top of the front end of the inner side of the heat sink 1. The bottom of the engine body 2 is fixedly connected with a heat sink 3. The rear end of the heat sink 3 is fixedly connected with a fan 4. The front end of the heat sink 1 is fixedly connected with an air outlet 6. The rear end of the heat sink 1 is abutted with a cover plate 16 near the bottom. The rear end of the cover plate 16 is fixedly connected with a diffuser duct 18. The diffuser duct 18 is arranged in a quadrangular pyramid. The rear end of the diffuser duct 18 The end is fixedly connected with an air collecting pipe 19, which is set in an inverted quadrangular pyramid. The inside of the air dispersing pipe 18 is threadedly connected with a fixing bolt 17 near the outside. The fixing bolt 17 is threadedly connected to the rear end of the heat dissipating casing 1 near the bottom at one end away from the cover plate 16. The rear end of the engine body 2 is fixedly connected with a fuel tank body 7. The front end of the heat dissipating casing 3 is fixedly connected with a muffler 5. The top of the heat dissipating casing 1 is fixedly connected with a fuel tank cover 8 near the rear end of the left side. The fuel tank cover 8 is connected to the fuel tank body 7. The fuel tank body 7 is engaged with the inner side of the heat dissipating casing 1 near the top rear end. The lower part of the fuel tank body 7 is abutted with an auxiliary connection port 1 3, the auxiliary connection port 13 is set in a concave shape, and the top of the heat sink casing 1 is slidably connected to the maintenance start plate 10 near the left front end. When working, first add gasoline into the inside of the fuel tank body 7 along the fuel tank cover 8, then rotate and tighten the fuel tank cover 8, open the maintenance start plate 10, inject the coolant into the heat sink 3, and then start the heat sink casing 1. At this time, the fan 4 is also started. When the heat sink casing 1 is transmitting, the fan 4 inhales the wind along the rear of the heat sink casing 1, and gathers the wind through the wind gathering pipe 19. Since the wind gathering pipe 19 gradually narrows toward the heat sink casing 1, the wind force will become stronger. After the wind force becomes stronger, the wind force will be drawn along the rear of the heat sink casing 1. The expansion of the dispersion air duct 18 can ensure that the wind will completely wrap around the outside of the engine body 2 and the heat sink 3 along the inside of the heat sink casing 1 to cool the engine body 2 and the heat sink 3. After the cooling is completed, since the fan 4 continues to inhale air, the air that has cooled the engine body 2 will be blown out along the muffler 5. The fan 4 has a large wind force when it is in operation, and the wind passing through the muffler 5 can remove the noise and reduce the wind force. When the equipment is in operation, the auxiliary connecting port 13 can support the fuel tank body 7 to prevent the engine body 2 from sliding during operation, causing the connection between the fuel tank body 7 and the engine body 2 to loosen.

[0026] A sealing cover 9 is threadedly connected below the maintenance start plate 10 on the left side of the heat dissipation casing 1. The interior of the sealing cover 9 is connected to the heat dissipation box 3. An air inlet 14 is opened at the rear of the heat dissipation casing 1 near the bottom. A dust shield is fixedly connected inside the air inlet 14. There are multiple groups of dust shields in a linear array at the front end of the dust shield. A filter plate 15 is arranged behind the fan 4. The filter plate 15 is fixedly connected to the inside of the heat dissipation casing 1 near the rear and near the bottom. The filter plate 15 abuts against the front end of the dust shield. The auxiliary connection port 13 is fixedly connected to the rear end of the heat dissipation casing 1 near the top. The top of the heat dissipation casing 1 is fixedly connected to a handle 1 1. The outside of the handle 11 is glued with an anti-slip sticker. When working, the coolant inside the heat sink 3 can be checked through the sealing cover 9 before starting the engine body 2 to see if it needs to be replenished. If it needs to be replenished, the coolant can be injected into the heat sink 3 along the sealing cover 9 to cool the engine body 2. After the equipment is started, the wind sucked in along 24 can be sucked in, and the dust sucked into the heat sink casing 1 can be adsorbed and blocked through the filter plate 15. When the equipment is used, the maintenance start plate 10 can be opened to stop the engine body 2, and then the equipment can be carried by holding the outside of the handle 11.

[0027] When the utility model is in use, gasoline is first added into the inside of the fuel tank body 7 along the fuel tank cap 8, then the fuel tank cap 8 is rotated and tightened, the maintenance start plate 10 is opened to inject the coolant into the inside of the radiator box 3, and then the radiator casing 1 is started. At this time, the fan 4 is also started. When the radiator casing 1 is transmitting, the fan 4 inhales the wind along the rear of the radiator casing 1, and gathers the wind through the wind collecting pipe 19. Since the wind collecting pipe 19 gradually narrows when it is considered to be located toward the radiator casing 1, the wind force will become larger. After the wind force becomes larger, it will expand along the scattered wind pipe 18, which can ensure that the wind will be completely wrapped along the inside of the radiator casing 1 to the outside of the engine body 2 and the radiator box 3 to cool the engine body 2 and the radiator box 3. After the cooling is completed, since the fan 4 continues to inhale air, the air cooled by the engine body 2 will be blown out along the muffler 5, and the fan 4 During operation, the wind force is relatively strong, and the wind passing through the muffler 5 can remove the noise and reduce the blown wind force. When the equipment is in operation, the auxiliary connection port 13 can support the fuel tank body 7 to prevent the engine body 2 from sliding during operation and causing the connection between the fuel tank body 7 and the engine body 2 to loosen. Before starting the engine body 2, the coolant inside the heat sink 3 can be checked through the sealing cover 9 to see if it needs to be replenished. If it needs to be replenished, the coolant can be injected into the heat sink 3 along the sealing cover 9 to cool the engine body 2. After the equipment is started, the wind inhaled along 24 can be sucked in, and the dust inhaled into the heat sink casing 1 can be adsorbed and blocked through the filter plate 15. When the equipment is used, the maintenance start plate 10 can be opened to stop the engine body 2, and then the equipment can be held outside the handle 11 to carry it.

[0028] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gasoline engine cooling system structure, comprising a heat dissipation housing (1), characterized in that: The heat dissipation casing (1) has two groups of designs that are bilaterally symmetrical. Connecting bolts (20) are threadedly connected to the two sides of the heat dissipation casing (1) near the external position. An engine body (2) is engaged with the inner side of the heat dissipation casing (1) near the front top position. A heat dissipation box (3) is fixedly connected to the bottom of the engine body (2). A fan (4) is fixedly connected to the rear end of the heat dissipation box (3). An air outlet (6) is fixedly connected to the front end of the heat dissipation casing (1). A cover plate (16) is abutted against the rear end of the heat dissipation casing (1) near the bottom. A dispersion duct (18) is fixedly connected to the rear end of the cover plate (16). The dispersion duct (18) is arranged in the form of a quadrangular pyramid. A gathering duct (19) is fixedly connected to the rear end of the dispersion duct (18). The gathering duct (19) is arranged in the form of an inverted quadrangular pyramid.

2. A gasoline engine cooling system structure according to claim 1, characterized in that: A fixing bolt (17) is threadedly connected inside the air dispersion pipe (18) near the outer side, and one end of the fixing bolt (17) away from the cover plate (16) is threadedly connected to a rear end of the heat dissipation housing (1) near the bottom.

3. A gasoline engine cooling system structure according to claim 1, characterized in that: The rear end of the engine body (2) is fixedly connected to a fuel tank body (7), the front end of the heat sink (3) is fixedly connected to a muffler (5), and the top of the heat sink housing (1) is fixedly connected to a fuel tank cover (8) near the left rear end, and the fuel tank cover (8) is connected to the fuel tank body (7).

4. A gasoline engine cooling system structure according to claim 3, characterized in that: The oil tank body (7) is engaged with the inner side of the heat dissipation housing (1) near the top rear end, and an auxiliary connection port (13) is abutted below the oil tank body (7), and the auxiliary connection port (13) is arranged in a concave shape.

5. A gasoline engine cooling system structure according to claim 1, characterized in that: A maintenance start plate (10) is slidably connected to the top of the heat dissipation housing (1) near the left front end, and a sealing cover (9) is threadedly connected below the maintenance start plate (10) on the left side of the heat dissipation housing (1), and the interior of the sealing cover (9) is connected to the heat dissipation box (3).

6. A gasoline engine cooling system structure according to claim 1, characterized in that: An air inlet (14) is provided at the rear of the heat dissipation housing (1) near the bottom, and a dust shielding plate is fixedly connected to the inside of the air inlet (14). The dust shielding plates have a total of multiple groups arranged in a linear array at the front end of the dust shielding plates.

7. A gasoline engine cooling system structure according to claim 1, characterized in that: A filter plate (15) is arranged at the rear of the fan (4); the filter plate (15) is fixedly connected to the inside of the heat dissipation housing (1) near the rear and near the bottom; the filter plate (15) abuts against the front end of the dust shielding plate.

8. A gasoline engine cooling system structure according to claim 4, characterized in that: The auxiliary connection port (13) is fixedly connected to the rear end of the heat dissipation housing (1) near the top, and a handle (11) is fixedly connected to the top of the heat dissipation housing (1), and an anti-slip sticker is glued to the outside of the handle (11).

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