Volute of gasoline engine

Abstract

The utility model discloses a gasoline engine volute which comprises a shell and further comprises a noise reduction assembly, the noise reduction assembly is composed of a sound absorption piece and a connecting piece, the sound absorption piece is arranged in the shell, the connecting piece is connected with the shell in a penetrating mode, one end of the connecting piece abuts against the sound absorption piece, and therefore the sound absorption piece is limited, and the noise reduction assembly is arranged in the shell. The sound absorption piece is a sound absorption plate, a plurality of holes are formed in the side face, facing the interior of the shell, of the sound absorption plate, and the connecting piece abuts against the side face, with the holes, of the sound absorption plate; through the designed noise reduction assembly, the volute has the noise reduction function, when the gasoline engine is used, the noise reduction effect is improved by being matched with an external existing noise reduction structure, meanwhile, the noise reduction assembly is simple in structure and convenient to machine and install, meanwhile, the improvement amplitude of the volute is small, normal production cannot be greatly influenced, the overall volute has large practicability and generalization performance, and the cost is reduced. The problem that an existing volute is lack of functionality in the using process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gasoline engines, and in particular relates to a volute of a gasoline engine. 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, it can be sprayed into the cylinder using a gasoline injection system. After being compressed to a certain temperature and pressure, it is ignited by a spark plug, causing the gas to expand and do work. The volute is the outer shell structure of the gasoline engine.

[0003] The existing gasoline engine volute has a simple structure and a single function. It can only protect the internal structure of the gasoline engine. During use, the gasoline engine will generate a lot of noise, which has a great impact on the working environment. The current treatment method mainly focuses on adding a noise reduction structure to the outside of the gasoline engine. Therefore, how to add a noise reduction structure inside the volute to improve the noise reduction effect is a problem that needs to be solved at present. Utility Model Content

[0004] The utility model aims to provide a gasoline engine volute to solve the problem that the existing volute mentioned in the above background technology has a single function and cannot achieve noise reduction.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gasoline engine volute, comprising a shell, and also comprising a noise reduction component, the noise reduction component being composed of a sound absorbing member and a connecting member, wherein the sound absorbing member is arranged inside the shell, and the connecting member is connected through the shell, and one end of the connecting member is against the sound absorbing member, thereby limiting the sound absorbing member and preventing the sound absorbing member from being separated from the inside of the shell.

[0006] Preferably, the sound absorbing member is a sound absorbing plate having a plurality of holes formed on the side of the sound absorbing plate facing the interior of the shell. When noise passes through the holes, the noise is reflected back and forth on the inner walls of the holes, thereby extending the propagation time of the noise on the sound absorbing plate, thereby achieving longer-term absorption of the noise. The connecting member abuts against the side of the sound absorbing plate with the holes.

[0007] Preferably, a plurality of screw holes are formed on the outer surface of the shell, and the connecting member is a limiting bolt screwed into the screw hole, and the limiting bolt abuts against the sound absorbing board, thereby limiting the sound absorbing board.

[0008] Preferably, a first magnetic block and a second magnetic block are fixed to the side of the sound absorbing board facing away from the interior of the shell, and the first magnetic block and the second magnetic block are magnetically connected to the inner wall of the shell, thereby facilitating installation and preventing the sound absorbing board from loosening and separating.

[0009] Preferably, the middle portion of the shell is in a through shape, and a plurality of through holes are provided at equal angles outside the through area, and the through holes are connected to the gasoline engine cover by bolts.

[0010] Preferably, the outer surface of the shell is also provided with an annular oil filling groove, which is connected to all the through holes. In later use, lubricating oil can be injected into the through holes through the oil filling groove to facilitate the removal of the bolts.

[0011] Preferably, a plurality of mounting blocks are integrally formed at the opening edge of the shell, which are not shown in the figure. Screw holes are provided on the mounting blocks, and the two shells are assembled through the mounting blocks.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Through the designed noise reduction component, the volute has a noise reduction function. When the gasoline engine is used, it cooperates with the existing external noise reduction structure to improve the noise reduction effect. At the same time, the noise reduction component has a simple structure and is convenient for processing and installation. At the same time, the improvement of the volute is small and will not cause a major impact on normal production. It has great practicality and promotability as a whole, and improves the functional deficiencies of the existing volute during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a rear view of the utility model;

[0016] Figure 3 It is a rear view of the sound-absorbing panel of the utility model.

[0017] In the figure:

[0018] 100, housing; 100a, screw hole; 100b, oil filling groove; 101, limit bolt;

[0019] 200. Sound-absorbing panel; 201. Magnetic block one; 202. Magnetic block two. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 3The utility model provides a technical solution: a gasoline engine volute, including a shell 100, and also including a noise reduction component, the noise reduction component is composed of a sound absorbing member and a connecting member, wherein the sound absorbing member is arranged inside the shell 100, and the connecting member is connected to the shell 100 through, and one end of the connecting member is against the sound absorbing member, so as to limit the sound absorbing member and prevent the sound absorbing member from being separated from the inside of the shell 100.

[0022] In this embodiment, preferably, the sound absorbing member is a sound absorbing plate 200, and a plurality of holes are formed on the side of the sound absorbing plate 200 facing the inside of the shell 100. When noise passes through the holes, the noise will be reflected back and forth on the inner wall of the holes, thereby extending the propagation time of the noise on the sound absorbing plate 200, thereby achieving longer absorption of the noise, and the connecting member is against the side of the sound absorbing plate 200 with holes.

[0023] In this embodiment, preferably, a plurality of screw holes 100 a are formed on the outer surface of the shell 100 , and the connecting member is a limiting bolt 101 screwed into the screw hole 100 a , and the limiting bolt 101 abuts against the sound absorbing board 200 , thereby limiting the sound absorbing board 200 .

[0024] In this embodiment, preferably, a magnetic block 201 and a magnetic block 202 are fixed to the side of the sound absorbing panel 200 facing away from the interior of the shell 100. The magnetic block 201 and the magnetic block 202 are magnetically connected to the inner wall of the shell 100, thereby facilitating installation and preventing the sound absorbing panel 200 from loosening and separating.

[0025] In this embodiment, preferably, the middle portion of the housing 100 is through-shaped, and a plurality of through holes are opened at equal angles outside the through-shaped region, and the through holes are connected to the gasoline engine cover by bolts.

[0026] In this embodiment, preferably, a circular oil filling groove 100b is further provided on the outer surface of the shell 100, and the oil filling groove 100b is connected to all the through holes. In later use, lubricating oil can be injected into the through holes through the oil filling groove 100b to facilitate the removal of the bolts.

[0027] In this embodiment, preferably, a plurality of mounting blocks are integrally formed at the opening edge of the shell 100 (not shown in the figure), and screw holes are provided on the mounting blocks, and the two shells 100 are assembled through the mounting blocks.

[0028] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gasoline engine volute, comprising a housing (100), characterized in that: It also includes a noise reduction component, which is composed of a sound absorbing component and a connecting component. The sound absorbing member is arranged inside the shell (100), and the connecting member is connected to the shell (100) through and through, and one end of the connecting member abuts against the sound absorbing member; the sound absorbing member is a sound absorbing board (200), and a plurality of holes are formed on the side of the sound absorbing board (200) facing the inside of the shell (100), and the connecting member abuts against the side of the sound absorbing board (200) with the holes; The outer surface of the shell (100) is provided with a plurality of screw holes (100a); the connecting member is a limiting bolt (101) screwed into the screw hole (100a); the limiting bolt (101) abuts against the sound absorbing plate (200).

2. A gasoline engine volute according to claim 1, characterized in that: A first magnetic block (201) and a second magnetic block (202) are fixed to the side of the sound absorbing board (200) facing away from the interior of the shell (100); the first magnetic block (201) and the second magnetic block (202) are magnetically connected to the inner wall of the shell (100).

3. A gasoline engine volute according to claim 1, characterized in that: The middle portion of the shell (100) is in a through shape.

4. A gasoline engine volute according to claim 1, characterized in that: The outer surface of the housing (100) is also provided with an annular oil injection groove (100b), and the oil injection groove (100b) is connected to all the through holes.

5. A gasoline engine volute according to claim 1, characterized in that: A plurality of mounting blocks are integrally formed at the opening edge of the shell (100), and screw holes are provided on the mounting blocks.

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