Gasoline engine with air cooling structure

Abstract

The utility model discloses a gasoline engine with an air cooling structure, which comprises a gasoline engine, a ventilation slot is arranged on the side wall of the gasoline engine, a mounting rack is fixedly connected to the inner wall of the ventilation slot, a plurality of groups of cooling fans are fixedly mounted on the mounting rack, a support cylinder is fixedly connected to the outer wall of the ventilation slot, and a protective cover is movably connected to the outer wall of the support cylinder. Supporting frames are symmetrically and fixedly connected to the outer wall of the supporting cylinder, each supporting frame is of an L-shaped structure, a limiting assembly is arranged in each supporting frame, a supporting ring is movably connected into each supporting frame in an inserted mode, a filter plate is fixedly connected to the middle of each supporting ring, and multiple sets of limiting holes are formed in each supporting ring, so that the sliding plate is high in moving stability; and the sucked air is filtered, impurities are prevented from entering the cooling fan to cause blockage, influence the use effect of the cooling fan and reduce the use efficiency of the cooling fan, the service life of the cooling fan is effectively prolonged, and the device is convenient to operate, time-saving, labor-saving and high in protection performance.

Description

Technical Field

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

[0002] A gasoline engine is an engine that uses gasoline as fuel to convert internal energy into kinetic energy. Since gasoline has low viscosity and evaporates quickly, a gasoline injection system can be used to spray gasoline into a cylinder. After being compressed to a certain temperature and pressure, it is ignited by a spark plug to expand the gas and do work. The characteristics of a gasoline engine are high speed, simple structure, light weight, low cost, stable operation, and convenient use and maintenance. Gasoline engines are widely used in automobiles, especially small cars. An existing air-cooled gasoline engine includes a cylinder block, a cylinder head is installed at the front end of the cylinder block, a cooling fan and a fan cover are installed on the side of the cylinder block, and an upper air guide cover and a lower air guide cover are installed on the upper and lower parts of the cylinder cover respectively. The cooling fan rotates to generate an airflow, which is guided by the fan cover, the upper air guide cover, and the lower air guide cover and blown to the cylinder head, thereby cooling and dissipating the cylinder block and cylinder head of the air-cooled gasoline engine.

[0003] In this regard, the Chinese utility model patent with the authorization announcement number CN218581685U discloses a heat dissipation structure of an air-cooled gasoline engine, including a cylinder block, a cooling fan, a fan cover, and a cylinder head. The upper cover of the cylinder head is provided with an upper air guide cover, and the lower cover of the cylinder head is provided with a lower air guide cover. The cylinder head includes a plurality of heat dissipation fins 1, and the gap L1 between the heat dissipation fins 1 and the upper air guide cover is 4 to 12MM, and the gap L2 between the heat dissipation fins 1 and the lower air guide cover is 4 to 12MM. By uniformly changing the gap between the upper air guide cover and the heat dissipation fin 1, and the gap between the lower air guide cover and the heat dissipation fin 1, it is avoided that the gap suddenly becomes larger, causing the pressure around the flowing airflow to suddenly decrease, causing airflow turbulence, and affecting the heat dissipation of the air-cooled gasoline engine; it is also avoided that the gap suddenly becomes smaller, resulting in an increase in the resistance of the airflow, causing a decrease in the intake volume, and thus affecting the heat dissipation of the air-cooled gasoline engine;

[0004] The cooling fan on the existing gasoline engine is exposed to the outside of the gasoline engine. In harsh environments, dust and impurities are easily blocked in the cooling fan, affecting the air cooling effect of the fan, thereby reducing the service life of the gasoline engine. For this reason, we propose a gasoline engine with an air cooling structure to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a gasoline engine with an air-cooling structure to solve the problems raised in the above-mentioned background technology.

[0006] A gasoline engine with an air cooling structure comprises a gasoline engine, a side wall of the gasoline engine is provided with a ventilation slot, an inner wall of the ventilation slot is fixedly connected with a mounting frame, and a plurality of cooling fans are fixedly mounted on the mounting frame;

[0007] The outer wall of the ventilation slot is fixedly connected with a support cylinder, the outer wall of the support cylinder is movably connected with a protective cover, the outer wall of the support cylinder is symmetrically fixedly connected with a support frame, and the support frame is an L-shaped structure, a limited position component is arranged in the support frame, a support ring is movably inserted in the support frame, a filter plate is fixedly connected to the middle of the support ring, and a plurality of groups of limit holes are provided on the support ring;

[0008] The limit assembly contains a limit cylinder, a slide plate, a limit rod, a pull rod and a spring. The side wall of the limit cylinder is fixedly connected to the inner wall of the support frame. The slide plate is movably connected inside the limit cylinder. One side wall of the slide plate is fixedly connected to the limit rod. The side end of the limit rod movably passes through the limit cylinder to extend outward, and the side end of the limit rod is movably inserted into the limit hole.

[0009] Preferably, the inner wall of the limiting cylinder is symmetrically provided with slide rails, and slide blocks are fixedly connected to both sides of the slide plate, and the side ends of the slide blocks are movably clamped in the slide rails.

[0010] Preferably, the other end of the slide plate is fixedly connected to a pull rod, the side end of the pull rod movably passes through the limit tube and the support frame to extend outward, and the side end of the pull rod is fixedly connected to a pull ring.

[0011] Preferably, a spring is movably sleeved on the pull rod, one end of the spring is fixedly connected to the slide plate, and the other end of the spring is fixedly connected to the inner wall of the limiting cylinder.

[0012] Preferably, the outer wall of the support tube is provided with an external thread, the inner wall of the protective cover is provided with an internal thread, and the outer wall of the protective cover is fixedly connected with a rotating plate.

[0013] Preferably, the side wall of the support ring is movably abutted against the outer wall of the support tube, and the outer wall of the support ring is symmetrically fixedly connected with a handle.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model is convenient for protecting the cooling fan by arranging a protective cover. When the gasoline engine is not working, the protective cover is covered to protect the cooling fan. The protective cover is used to quickly connect with the support tube through the use of internal threads and external threads. The protective cover can be quickly disassembled and assembled, which is convenient to use. The limited position component is provided to fix the position of the support ring, and the support ring is also convenient for quick disassembly and assembly, which is convenient for replacing the filter plate. The user pulls the pull ring to move, and the pull ring drives the pull rod to move. The pull rod drives the limit rod to move through the slide plate, and the limit rod retracts into the limit tube, and then the support The ring is inserted in the support frame, the pull ring is loosened, and the slide plate is pushed to reset under the rebound force of the spring, driving the limit rod to be inserted into the limit hole opened on the support ring, so as to quickly fix the position of the support ring, and the slider is used in conjunction with the slide rail to make the slide plate move stably. By providing a filter plate, the absorbed gas is filtered when the cooling fan is working to prevent impurities from entering the cooling fan and causing blockage, affecting the use effect of the cooling fan, reducing the use efficiency of the cooling fan, and effectively extending the service life of the cooling fan. The device is easy to operate, saves time and effort, is easy to replace, and has high protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal side view of the ventilation slot in the utility model;

[0018] Figure 3 This is a schematic diagram of the front view of the internal structure of the support tube in the utility model;

[0019] Figure 4 It is a schematic diagram of the internal side structure of the limiting cylinder in the utility model.

[0020] In the figure: 1. gasoline engine; 101. ventilation slot; 2. support cylinder; 201. external thread; 3. protective cover; 301. internal thread; 302. rotating plate; 4. mounting frame; 5. cooling fan; 6. support frame; 7. limit assembly; 71. limit cylinder; 72. slide rail; 73. slide plate; 74. slide block; 75. limit rod; 76. pull rod; 77. pull ring; 78. spring; 8. support ring; 801. filter plate; 802. limit hole; 803. handle. DETAILED DESCRIPTION

[0021] 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. Example

[0022] See also Figure 1-2 The utility model provides a technical solution: a gasoline engine with an air-cooling structure, comprising a gasoline engine 1, a ventilation slot 101 is opened on the side wall of the gasoline engine 1, a mounting frame 4 is fixedly connected to the inner wall of the ventilation slot 101, and a plurality of cooling fans 5 are fixedly installed on the mounting frame 4;

[0023] It should be noted that the outer wall of the ventilation slot 101 is fixedly connected with a support tube 2, and the outer wall of the support tube 2 is movably connected with a protective cover 3. The protective cover 3 is provided to facilitate the protection of the cooling fan 5. When the gasoline engine 1 is not working, the protective cover 3 is covered to protect the cooling fan 5. The outer wall of the support tube 2 is symmetrically fixedly connected with a support frame 6, and the support frame 6 is an L-shaped structure. A limiting component 7 is provided in the support frame 6, and a support ring 8 is movably inserted in the support frame 6. A filter plate 801 is fixedly connected to the middle of the support ring 8, and a plurality of groups of limiting holes 802 are provided on the support ring 8. By providing the filter plate 801, when the cooling fan 5 is working, the sucked gas is filtered to prevent impurities from entering the cooling fan 5, causing blockage and affecting the use effect of the cooling fan 5.

[0024] It should be noted that the limit assembly 7 contains a limit cylinder 71, a slide 73, a limit rod 75, a pull rod 76 and a spring 78. The side wall of the limit cylinder 71 is fixedly connected to the inner wall of the support frame 6. The slide 73 is movably connected inside the limit cylinder 71. One side wall of the slide 73 is fixedly connected to the limit rod 75. The side end of the limit rod 75 movably passes through the limit cylinder 71 to extend outward, and the side end of the limit rod 75 is movably inserted into the limit hole 802. Example

[0025] See also Figure 3 and Figure 4 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment;

[0026] Specifically, the outer wall of the support tube 2 is provided with an external thread 201, the inner wall of the protective cover 3 is provided with an internal thread 301, and the outer wall of the protective cover 3 is fixedly connected with a rotating plate 302. The internal thread 301 is used in conjunction with the external thread 201 to facilitate the protective cover 3 to be quickly connected to the support tube 2. The protective cover 3 can be quickly disassembled and assembled, and is convenient to use.

[0027] It should be noted that the side wall of the support ring 8 is movably abutted against the outer wall of the support tube 2, and the outer wall of the support ring 8 is symmetrically fixedly connected with a handle 803. The handle 803 is provided to facilitate taking the support ring 8, which is more humane.

[0028] It should be noted that the inner wall of the limiting cylinder 71 is symmetrically provided with slide rails 72, and sliders 74 are fixedly connected on both sides of the slide plate 73. The side ends of the sliders 74 are movably clamped in the slide rails 72. The sliders 74 are used in conjunction with the slide rails 72 to ensure that the slide plate 73 has strong movement stability.

[0029] In addition, a pull rod 76 is fixedly connected to the other end of the slide plate 73 , and a side end of the pull rod 76 movably passes through the limiting cylinder 71 and the support frame 6 to extend outward, and a pull ring 77 is fixedly connected to the side end of the pull rod 76 .

[0030] Specifically, a spring 78 is movably sleeved on the pull rod 76 , one end of the spring 78 is fixedly connected to the slide plate 73 , and the other end of the spring 78 is fixedly connected to the inner wall of the limiting cylinder 71 . Example

[0031] See also Figures 1 to 4 , which is the third embodiment of the utility model, and this embodiment is based on the above two embodiments;

[0032] When the utility model is in use, the protective cover 3 is provided to protect the cooling fan 5. When the gasoline engine 1 is not working, the protective cover 3 is covered to protect the cooling fan 5. The internal thread 301 is used in conjunction with the external thread 201, so that the protective cover 3 is quickly connected to the support tube 2. The protective cover 3 can be quickly disassembled and assembled, which is convenient to use. The limited position component 7 is provided to fix the position of the support ring 8, and the support ring 8 is also quickly disassembled and assembled, so that the filter plate 801 can be easily replaced. The user pulls the pull ring 77 to move, and the pull ring 77 drives the pull rod 76 to move. The pull rod 76 drives the limit rod 75 to move through the slide plate 73, and the limit rod 75 retracts to the limit tube 71. The support ring 8 is then inserted into the support frame 6, and the pull ring 77 is loosened. Under the rebound force of the spring 78, the slide plate 73 is pushed to reset, driving the limiting rod 75 to be inserted into the limiting hole 802 provided on the support ring 8, and the support ring 8 is quickly fixed in position. The slider 74 is used in conjunction with the slide rail 72 to ensure that the slide plate 73 has strong movement stability. By providing a filter plate 801, when the cooling fan 5 is working, the absorbed gas is filtered to prevent impurities from entering the cooling fan 5 and causing blockage, affecting the use effect of the cooling fan 5, reducing the use efficiency of the cooling fan 5, and effectively extending the service life of the cooling fan 5. The device is easy to operate, saves time and effort, is easy to replace, and has high protection.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gasoline engine with an air-cooling structure, comprising a gasoline engine (1), characterized in that: The gasoline engine (1) has a side wall provided with a ventilation slot (101), the inner wall of the ventilation slot (101) is fixedly connected to a mounting frame (4), and a plurality of cooling fans (5) are fixedly mounted on the mounting frame (4); The outer wall of the ventilation slot (101) is fixedly connected to a support tube (2), the outer wall of the support tube (2) is movably connected to a protective cover (3), the outer wall of the support tube (2) is symmetrically fixedly connected to a support frame (6), and the support frame (6) is an L-shaped structure. A limit assembly (7) is arranged in the support frame (6), a support ring (8) is movably inserted in the support frame (6), a filter plate (801) is fixedly connected to the middle of the support ring (8), and a plurality of groups of limit holes (802) are provided on the support ring (8); The limiting assembly (7) contains a limiting cylinder (71), a slide plate (73), a limiting rod (75), a pull rod (76) and a spring (78); the side wall of the limiting cylinder (71) is fixedly connected to the inner wall of the support frame (6); the limiting cylinder (71) is movably connected with the slide plate (73); a side wall of the slide plate (73) is fixedly connected to the limiting rod (75); a side end of the limiting rod (75) movably passes through the limiting cylinder (71) and extends outwards; and the side end of the limiting rod (75) is movably inserted into the limiting hole (802).

2. A gasoline engine with an air-cooling structure according to claim 1, characterized in that: The outer wall of the support tube (2) is provided with an external thread (201), the inner wall of the protective cover (3) is provided with an internal thread (301), and the outer wall of the protective cover (3) is fixedly connected to a rotating plate (302).

3. A gasoline engine with an air-cooling structure according to claim 1, characterized in that: The side wall of the support ring (8) is movably abutted against the outer wall of the support tube (2), and a handle (803) is symmetrically fixedly connected to the outer wall of the support ring (8).

4. A gasoline engine with an air-cooling structure according to claim 1, characterized in that: The inner wall of the limiting cylinder (71) is symmetrically provided with slide rails (72), and both sides of the slide plate (73) are fixedly connected with slide blocks (74), and the side ends of the slide blocks (74) are movably clamped in the slide rails (72).

5. A gasoline engine with an air-cooling structure according to claim 4, characterized in that: The other end of the slide plate (73) is fixedly connected to a pull rod (76), and the side end of the pull rod (76) movably passes through the limit tube (71) and the support frame (6) to extend outwards, and the side end of the pull rod (76) is fixedly connected to a pull ring (77).

6. A gasoline engine with an air-cooling structure according to claim 5, characterized in that: A spring (78) is movably sleeved on the pull rod (76), one end of the spring (78) is fixedly connected to the slide plate (73), and the other end of the spring (78) is fixedly connected to the inner wall of the limiting cylinder (71).

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