Noise-proof gasoline engine

Abstract

The utility model relates to the technical field of generators, and discloses an anti-noise gasoline engine which comprises a noise reduction box and a gasoline engine body, a damping assembly is arranged at the bottom of the inner side of the noise reduction box, the gasoline engine body is arranged on the damping assembly in the noise reduction box, and the damping assembly is used for damping and noise reduction of the gasoline engine body. The outer portion of the noise reduction box is slidably sleeved with a rectangular frame plate, a noise reduction cylinder is fixed to the upper surface of the rectangular frame plate, a plurality of first exhaust pipes are fixed to the rectangular frame plate in a penetrating mode, first cooling fans are arranged in the first exhaust pipes, and two fixing columns are fixed to the top of the inner side of the noise reduction cylinder. The outer side of the top end of the noise reduction box is wrapped with the noise reduction cylinder, the noise reduction cylinder is used for wrapping the second exhaust pipe so as to prevent noise overflowing along the second exhaust pipe from being directly spread, the second cooling fan is used in cooperation with the first cooling fans, the guiding-out efficiency of air in the noise reduction box can be improved, and the noise reduction effect is improved. And the heat dissipation effect of the gasoline engine in the noise reduction box is better.

Description

Technical Field

[0001] The utility model relates to the technical field of generators, and more specifically, the utility model relates to a gasoline engine with noise prevention. Background Art

[0002] A gasoline engine is usually composed of components such as a stator, a rotor, an end cover, and bearings. An engine is a machine that converts chemical energy into mechanical energy. Its conversion process is actually the process of a working cycle. Simply put, by burning the fuel in the cylinder, kinetic energy is generated to drive the piston in the engine cylinder to reciprocate. Thereby, the connecting rod connected to the piston and the crank connected to the connecting rod are driven to make a reciprocating circular motion around the center of the crankshaft, and power is output.

[0003] When a gasoline engine is running, it will generate high-decibel noise, which is very unfavorable for some people who need to work in a quiet environment. Therefore, noise reduction treatment needs to be carried out on the gasoline engine. The traditional noise reduction means for gasoline engines generally directly cover a sound insulation box on the outside. In order to ensure the normal heat dissipation of the gasoline engine, ventilation holes are opened on the sound insulation box. The opening of these ventilation holes will cause the noise to spread out, resulting in a great reduction in the overall noise reduction effect of the gasoline engine. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a gasoline engine with noise prevention. By wrapping a noise reduction cylinder outside the top end of the noise reduction box, the noise reduction cylinder is used to wrap the second exhaust pipe to avoid the direct propagation of the noise overflowing along the second exhaust pipe. With the combined use of the second radiator fan and several first radiator fans, the air discharge efficiency in the noise reduction box can be accelerated.

[0005] To achieve the above object, the utility model provides the following technical solution: A gasoline engine with noise prevention, including a noise reduction box and a gasoline engine. A shock absorption component is arranged at the bottom inside the noise reduction box. The gasoline engine is arranged on the shock absorption component inside the noise reduction box. The shock absorption component is used for shock absorption and noise reduction of the gasoline engine. A rectangular frame plate is slidably sleeved outside the noise reduction box. A noise reduction cylinder is fixed on the upper surface of the rectangular frame plate. Several first exhaust pipes are fixedly penetrated through the rectangular frame plate. A first radiator fan is arranged inside the first exhaust pipe. Two fixing columns are fixed at the top inside the noise reduction cylinder. The bottom ends of the two fixing columns are fixed with a cover plate. The cover plate covers the top of the noise reduction box, and a second exhaust pipe is fixedly penetrated through the cover plate. A second radiator fan is arranged inside the second exhaust pipe, and the second exhaust pipe is located inside the noise reduction cylinder. Air inlet components are arranged on the front and rear sides of the noise reduction box. The air inlet components are used for introducing air into the noise reduction box.

[0006] As a preferred technical solution of the present utility model, a first sound insulation cotton interlayer is provided in each of the noise reduction box, the noise reduction cylinder, and the cover plate, and four universal wheels are provided at the bottom of the noise reduction box.

[0007] As a preferred technical solution of the present utility model, fixing plates are fixed on both the left and right sides of the noise reduction box, bolts are threadedly connected to the fixing plates, the bottom end of each bolt is rotatably connected to a stop plate through a bearing, and a plurality of anti-slip blocks are provided at the bottom of the stop plate.

[0008] As a preferred technical solution of the present utility model, the air inlet assembly includes an air inlet pipe, the air inlet pipe is provided on the noise reduction box and is in communication with the noise reduction box, and a filter screen is provided at one end of the air inlet pipe away from the noise reduction box.

[0009] As a preferred technical solution of the present utility model, two first partition plates and two second partition plates are fixed inside the air inlet pipe, the two first partition plates and the two second partition plates are arranged at intervals, and a second sound insulation cotton interlayer is provided in each of the air inlet pipe, the first partition plates, and the second partition plates.

[0010] As a preferred technical solution of the present utility model, the shock absorption assembly includes four shock absorbers, the four shock absorbers are all arranged inside the noise reduction box, a support plate is provided at the top of the four shock absorbers, the gasoline engine is arranged on the support plate, and a rubber pad is provided between the gasoline engine and the support plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the noise reduction cylinder is wrapped around the outer side of the top end of the noise reduction box, and the second exhaust pipe is wrapped by the noise reduction cylinder to prevent the noise overflowing along the second exhaust pipe from directly spreading. By using the cooperation of the second heat dissipation fan and several first heat dissipation fans, the air extraction efficiency in the noise reduction box can be accelerated, so that the heat dissipation effect of the gasoline engine inside the noise reduction box is better.

[0013] 2. In the present utility model, two first partition plates and two second partition plates are arranged inside the air inlet pipe, and the two first partition plates and the two second partition plates are arranged at intervals, so that the air flows in a serpentine shape in the air inlet pipe, which can block the noise from directly escaping along the air inlet pipe, so that the noise reduction box not only meets the requirements of ventilation and heat dissipation, but also meets the requirements of sound insulation; with the cooperation of four shock absorbers and rubber pads, shock absorption protection can be provided for the operation of the gasoline engine, so that the vibration noise generated during the operation of the gasoline engine is weakened. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2Schematic diagram of the rectangular frame plate, noise reduction cylinder and first exhaust pipe in the present utility model;

[0016] Figure 3 Schematic diagram of the noise reduction cylinder, first radiator fan, cover plate and second radiator fan in the present utility model;

[0017] Figure 4 Schematic diagram of the noise reduction box, shock absorption assembly and air intake assembly in the present utility model;

[0018] Figure 5 Schematic diagram of the fixing plate, bolt, stop plate and anti-slip block in the present utility model.

[0019] In the figure: 1, noise reduction box; 2, gasoline engine; 3, rectangular frame plate; 4, noise reduction cylinder; 5, first exhaust pipe; 6, first radiator fan; 7, fixing column; 8, cover plate; 9, second exhaust pipe; 10, second radiator fan; 11, universal wheel; 12, fixing plate; 13, bolt; 14, stop plate; 15, anti-slip block; 16, intake pipe; 17, filter screen; 18, first partition board; 19, second partition board; 20, shock absorber; 21, support plate; 22, rubber pad. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0021] As Figures 1 to 5 shown, the present utility model provides a gasoline engine with noise prevention, including a noise reduction box 1 and a gasoline engine 2. A shock absorption assembly is provided at the bottom inside the noise reduction box 1. The gasoline engine 2 is arranged on the shock absorption assembly inside the noise reduction box 1. The shock absorption assembly is used for shock absorption and noise reduction of the gasoline engine 2. A rectangular frame plate 3 is slidably sleeved outside the noise reduction box 1. A noise reduction cylinder 4 is fixed on the upper surface of the rectangular frame plate 3. A plurality of first exhaust pipes 5 are fixedly penetrated through the rectangular frame plate 3. A first radiator fan 6 is arranged inside the first exhaust pipe 5. Two fixing columns 7 are fixed at the top inside the noise reduction cylinder 4. The bottom ends of the two fixing columns 7 are fixed with a cover plate 8. A first sound insulation cotton interlayer is arranged in the noise reduction box 1, the noise reduction cylinder 4 and the cover plate 8. The cover plate 8 covers the top of the noise reduction box 1, and a second exhaust pipe 9 is fixedly penetrated through the cover plate 8. A second radiator fan 10 is arranged inside the second exhaust pipe 9, and the second exhaust pipe 9 is located inside the noise reduction cylinder 4. Air intake assemblies are arranged on the front and rear sides of the noise reduction box 1, and the air intake assemblies are used for introducing air into the noise reduction box 1.

[0022] A noise reduction cylinder 4 is wrapped around the outside of the top of the noise reduction box 1, and the noise reduction cylinder 4 is used to wrap the second exhaust pipe 9 to prevent the noise overflowing along the second exhaust pipe 9 from spreading directly. By using the cooperation of the second radiator fan 10 and multiple first radiator fans 6, the air discharge efficiency in the noise reduction box 1 can be accelerated, making the heat dissipation effect of the gasoline engine 2 inside the noise reduction box 1 better.

[0023] Among them, four universal wheels 11 are provided at the bottom of the noise reduction box 1. Fixed plates 12 are fixed on both the left and right sides of the noise reduction box 1. Bolts 13 are threadedly connected to the fixed plates 12. The bottom end of the bolt 13 is rotatably connected to a stop plate 14 through a bearing. Multiple anti-slip blocks 15 are provided at the bottom of the stop plate 14.

[0024] With the help of the four universal wheels 11, it is more convenient to move the position of the gasoline engine 2. Use a wrench to turn the bolt 13, so that the bolt 13 pushes the stop plate 14 downward, forcing the anti-slip blocks 15 to abut against the ground to prevent the universal wheels 11 from rolling further.

[0025] Among them, the intake assembly includes an intake pipe 16. The intake pipe 16 is provided on the noise reduction box 1 and is in communication with the noise reduction box 1. A filter screen 17 is provided at one end of the intake pipe 16 away from the noise reduction box 1. Two first partition plates 18 and two second partition plates 19 are fixed inside the intake pipe 16. The two first partition plates 18 and the two second partition plates 19 are arranged at intervals. Second sound insulation cotton interlayers are provided in the intake pipe 16, the first partition plates 18, and the second partition plates 19.

[0026] Two first partition plates 18 and two second partition plates 19 are arranged at intervals inside the intake pipe 16, so that the air flows in a snake shape in the intake pipe 16. This can block the noise from being directly exported along the intake pipe 16, making the noise reduction box 1 meet both the requirements of ventilation and heat dissipation and the requirements of sound insulation.

[0027] Among them, the shock absorption assembly includes four shock absorbers 20. The four shock absorbers 20 are all arranged inside the noise reduction box 1. A support plate 21 is provided at the top of the four shock absorbers 20. The gasoline engine 2 is arranged on the support plate 21, and a rubber pad 22 is provided between the gasoline engine 2 and the support plate 21.

[0028] With the cooperation of the four shock absorbers 20 and the rubber pad 22, shock absorption protection can be provided for the operation of the gasoline engine 2, weakening the vibration noise generated during the operation of the gasoline engine 2.

[0029] The working principle and usage process of the present utility model:

[0030] Transfer the gasoline engine 2 to the designated position by means of four universal wheels 11. After reaching the designated position, use a wrench to turn two bolts 13, so that the bolts 13 push the stop plate 14 downward. The anti-slip block 15 below the stop plate 14 closely adheres to the ground, which can prevent the universal wheels 11 from moving continuously. When the gasoline engine 2 operates, the shock absorber 20 and the rubber pad 22 can provide shock protection for it, so that the vibration noise generated by the gasoline engine 2 can be weakened;

[0031] Start the second cooling fan 10 and multiple first cooling fans 6 to operate. The operation of the gasoline engine 2 will generate a large amount of heat. The second cooling fan 10 and multiple first cooling fans 6 can accelerate the discharge of the air and heat inside the noise reduction box 1. The outside air is supplemented into the inside of the noise reduction box 1 along the air inlet pipe 16. The newly introduced air can flow in a serpentine shape in the air inlet pipe 16 after being filtered by the filter screen 17. The two first partition plates 18 and the two second partition plates 19 arranged at intervals can block the noise from overflowing along the air inlet pipe 16. The noise reduction cylinder 4 covering the outside of the second exhaust pipe 9 can block the noise from overflowing along the second exhaust pipe 9, so that when the gasoline engine 2 operates, the surrounding noise decibel is reduced, which can better meet the user's needs.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gasoline engine with noise prevention, comprising a noise reduction box (1) and a gasoline engine (2), characterized in that: A shock absorbing assembly is arranged at the bottom of the inner side of the noise reduction box (1), the gasoline engine (2) is arranged on the shock absorbing assembly inside the noise reduction box (1), and the shock absorbing assembly is used for shock and noise reduction of the gasoline engine (2). A rectangular frame plate (3) is slidably sleeved on the outside of the noise reduction box (1), a noise reduction tube (4) is fixed on the upper surface of the rectangular frame plate (3), a plurality of first exhaust pipes (5) are fixed through the rectangular frame plate (3), a first heat dissipation fan (6) is arranged inside the first exhaust pipe (5), and the Two fixing columns (7) are fixed to the top of the inner side of the noise reduction tube (4), and a cover plate (8) is fixed to the bottom end of the two fixing columns (7). The cover plate (8) covers the top of the noise reduction box (1), and a second exhaust pipe (9) is passed through and fixed on the cover plate (8). A second heat dissipation fan (10) is arranged inside the second exhaust pipe (9), and the second exhaust pipe (9) is located inside the noise reduction tube (4). Air intake components are arranged on the front and rear sides of the noise reduction box (1), and the air intake components are used to introduce air into the noise reduction box (1).

2. A gasoline engine with noise prevention according to claim 1, characterized in that: The noise reduction box (1), the noise reduction tube (4) and the cover plate (8) are all provided with a first sound insulation cotton interlayer, and the bottom of the noise reduction box (1) is provided with four universal wheels (11).

3. A gasoline engine with noise prevention according to claim 1, characterized in that: A fixing plate (12) is fixed on both the left and right sides of the noise reduction box (1), a bolt (13) is threadedly connected to the fixing plate (12), the bottom end of the bolt (13) is rotatably connected to a stop plate (14) via a bearing, and a plurality of anti-sliding blocks (15) are arranged at the bottom of the stop plate (14).

4. A gasoline engine with noise prevention according to claim 1, characterized in that: The air intake assembly comprises an air intake pipe (16), the air intake pipe (16) is arranged on the noise reduction box (1), and the air intake pipe (16) and the noise reduction box (1) are in communication with each other, and a filter screen (17) is arranged at one end of the air intake pipe (16) away from the noise reduction box (1).

5. A gasoline engine with noise prevention according to claim 4, characterized in that: Two first partitions (18) and two second partitions (19) are fixed inside the air intake pipe (16), and the two first partitions (18) and the two second partitions (19) are arranged at intervals. A second sound insulation cotton interlayer is arranged in the air intake pipe (16), the first partition (18), and the second partition (19).

6. A gasoline engine with noise prevention according to claim 1, characterized in that: The shock absorbing assembly comprises four shock absorbers (20), the four shock absorbers (20) are all arranged inside the noise reduction box (1), a support plate (21) is arranged on the top of the four shock absorbers (20), the gasoline engine (2) is arranged on the support plate (21), and a rubber pad (22) is arranged between the gasoline engine (2) and the support plate (21).

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