CN220539724U

CN220539724U - Muffler

Info

Publication number: CN220539724U
Application number: CN202322146325.8U
Authority: CN
Inventors: 李虎; 唐雷
Original assignee: Chongqing Tengyi Industrial Automation Equipment Co ltd
Current assignee: Chongqing Tengyi Industrial Automation Equipment Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-02-27
Anticipated expiration: 2033-08-10

Abstract

The utility model discloses a muffler in the technical field of noise reduction, which comprises a lower cover and an upper cover, wherein the upper cover is arranged at the top of the lower cover, one side of the lower cover is provided with an air inlet pipe, the other end of the air inlet pipe is provided with a flange plate, the air inlet pipe penetrates through the lower cover to the inner middle section of the lower cover, and through the air inlet pipe, an air outlet pipe, partition plates, a hole array and a reinforcing plate which are arranged, the device is provided with the plates through structural optimization and reasonable arrangement, two partition plates are provided with two chambers, and the reinforcing plate and three hole arrays are matched, so that more gas noise can be treated under the smaller volume, the volume of the muffler can be reduced while the exhaust noise of an engine is effectively reduced, the installation and the use of various engines are facilitated, and the muffler has better effects than the common muffler under the conditions of high temperature resistance, moisture resistance, larger convection speed and higher cleaning requirements.

Description

Muffler

Technical Field

The utility model belongs to the technical field of noise reduction, and particularly relates to a muffler.

Background

The muffler means that for the air flow pipeline with noise transmission, the noise in the pipeline can be attenuated or reflected back by using the pipeline with sound absorption lining and elbow or using the noise reduction devices such as the pipeline with suddenly changed sectional area and other discontinuous acoustic impedance. The former is called a resistive muffler, and the latter is called a resistive muffler, and there is also a resistive composite muffler, which is often used for reducing exhaust noise of an engine.

The existing muffler has large volume, short service life in high-temperature, high-speed, water-containing steam, dust-containing, oil-containing and corrosive gas to sound-absorbing materials, and poor noise elimination effect; the noise elimination effect on low-frequency noise is not ideal, and therefore, we propose a muffler.

Disclosure of Invention

The utility model aims to provide a muffler, which aims to solve the problems that in the background technology, the service life is short and the noise elimination effect is poor in gases which contain water vapor, dust and oil and are corrosive to sound absorption materials at high temperature and high speed; the noise elimination effect on low-frequency noise is not ideal.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a silencer, includes lower cover and upper cover, the upper cover is located the lower cover top, lower cover one side is equipped with the intake pipe, the intake pipe other end is equipped with the ring flange, the intake pipe passes lower cover to its inside middle section, the intake pipe surface is equipped with first baffle, the intake pipe surface still is equipped with the second baffle, the intake pipe surface still is equipped with the reinforcing plate, lower cover one side is equipped with the outlet duct, the outlet duct surface also is equipped with the reinforcing plate, the reinforcing plate surface is equipped with the third hole array, the intake pipe middle section is equipped with first hole array, the intake pipe rear section is equipped with the second hole array, the upper cover surface is equipped with the guard shield, upper cover and lower cover front portion are equipped with the front end housing, upper cover and lower cover rear portion are equipped with the rear end cap, lower cover one side is equipped with the journal stirrup, the journal stirrup surface is equipped with the accommodation hole, the ring flange surface also is equipped with the accommodation hole, the inside is equipped with the bolt, the bolt surface is equipped with the spring.

Preferably, the upper cover is arranged at the top of the lower cover, one side of the lower cover is provided with an air inlet pipe, and the other end of the air inlet pipe is provided with a flange plate.

Preferably, the air inlet pipe penetrates through the lower cover to the middle section inside the lower cover, the surface of the air inlet pipe is provided with a first partition board, the surface of the air inlet pipe is also provided with a second partition board, and the surface of the air inlet pipe is also provided with a reinforcing plate.

Preferably, an air outlet pipe is arranged on one side of the lower cover, a reinforcing plate is also arranged on the surface of the air outlet pipe, a third hole array is arranged on the surface of the reinforcing plate, a first hole array is arranged in the middle section of the air inlet pipe, and a second hole array is arranged in the rear section of the air inlet pipe.

Preferably, the surface of the upper cover is provided with a shield, the front parts of the upper cover and the lower cover are provided with front end covers, and the rear parts of the upper cover and the lower cover are provided with rear end covers.

Preferably, a support lug is arranged on one side of the lower cover, a containing hole is formed in the surface of the support lug, a containing hole is also formed in the surface of the flange plate, a bolt is arranged in the containing hole, and a spring is arranged on the surface of the bolt.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the intake pipe, outlet duct, baffle, hole array and the reinforcing plate that are equipped with, this device is through the optimization of structure and reasonable setting plate, two baffles add two cavities, cooperation reinforcing plate and three hole array again make it handle more gaseous noise under less volume, can reduce the volume of silencer when effectively reducing engine exhaust noise, be convenient for all kinds of engines's installation and use, owing to need not to use porous sound absorbing material, consequently at high temperature resistant, anti moist, convection velocity is great, clean higher condition of requirement all is better than ordinary silencer good effect.

2. The buffer effect can be effectively achieved through the bolts, the springs and the containing holes, and the muffler body can be stably kept at the initial position due to the impact of the reaction force of the springs and rebound after extrusion vibration, so that the stability of the muffler is guaranteed.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic side view of the present utility model;

fig. 4 is a schematic view of the structure of the shield of the present utility model.

In the figure: 1. a flange plate; 2. an air inlet pipe; 3. an air outlet pipe; 4. a shield; 5. a front end cover; 6. a support lug; 7. a lower cover; 8. an upper cover; 9. a rear end cover; 10. a first separator; 11. a second separator; 12. a first hole array; 13. a second hole array; 14. a third hole array; 15. a reinforcing plate; 16. a receiving hole; 17. a bolt; 18. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the muffler comprises a lower cover 7 and an upper cover 8, wherein the upper cover 8 is arranged at the top of the lower cover 7, one side of the lower cover 7 is provided with an air inlet pipe 2, the other end of the air inlet pipe 2 is provided with a flange plate 1, the air inlet pipe 2 penetrates through the lower cover 7 to the inner middle section of the lower cover, the surface of the air inlet pipe 2 is provided with a first partition plate 10, the surface of the air inlet pipe 2 is also provided with a second partition plate 11, the surface of the air inlet pipe 2 is also provided with a reinforcing plate 15, one side of the lower cover 7 is provided with an air outlet pipe 3, the surface of the air outlet pipe 3 is also provided with the reinforcing plate 15, the surface of the reinforcing plate 15 is provided with a third hole array 14, the middle section of the air inlet pipe 2 is provided with a first hole array 12, the rear section of the air inlet pipe 2 is provided with a second hole array 13, the surface of the upper cover 8 is provided with a shield 4, the front end covers 5 are arranged at the front parts of the upper cover 8 and the lower cover 7, the rear parts of the upper cover 8 and the lower cover 7 are provided with rear end covers 9, one side of the lower cover 7 is provided with lugs 6, the surfaces of the lugs 6 are provided with accommodating holes 16, the surfaces of the flange plate 1 are also provided with accommodating holes 16, bolts 17 are provided with the accommodating holes 17, the bolts 17 are 17, and the surface of the bolts 17 are provided with springs 18.

Specifically, upper cover 8 locates lower cover 7 top, lower cover 7 one side is equipped with intake pipe 2, the intake pipe 2 the other end is equipped with ring flange 1, intake pipe 2 passes lower cover 7 to its inside middle section, intake pipe 2 surface is equipped with first baffle 10, intake pipe 2 surface still is equipped with second baffle 11, intake pipe 2 surface still is equipped with reinforcing plate 15, lower cover 7 one side is equipped with outlet duct 3, outlet duct 3 surface also is equipped with reinforcing plate 15, reinforcing plate 15 surface is equipped with third hole array 14, intake pipe 2 middle section is equipped with first hole array 12, intake pipe 2 rear section is equipped with second hole array 13, upper cover 8 surface is equipped with guard shield 4, upper cover 8 and lower cover 7 front portion are equipped with front end cap 5, upper cover 8 and lower cover 7 rear portion are equipped with rear end cap 9, lower cover 7 one side is equipped with journal stirrup 6, journal stirrup 6 surface is equipped with accommodation hole 16, ring flange 1 surface also is equipped with accommodation hole 16, the inside of accommodation hole 16 is equipped with bolt 17, the bolt 17 surface is equipped with spring 18.

In this embodiment, when the engine works, the exhaust gas enters the first chamber at the rear end of the muffler through the air inlet pipe 2, part of the gas leaks out through the second hole array 13 and the third hole array 14 on the surface of the air inlet pipe 2 and oscillates in the two chambers, the air inlet pipe of the muffler is internally provided with a pipe and a chamber with abrupt interface, which are combined as if being an acoustic filter, similar to an electric filter, each chamber with the pipe is a mesh of the filter, the air quality in the pipe is equivalent to the electric inductance and resistance, which are called acoustic quality and acoustic resistance, so that the other part of the gas oscillates back and forth on the pipe and the chamber on the abrupt interface of the air inlet pipe, finally reaches the first chamber, is discharged into the second chamber through the air outlet hole of the second partition 11 again, and is converged with the first wave gas, and as the front wave gas and the rear wave gas are converged, the vibration frequency is the same, the vibration direction is the same, the phase is the same, two sections of simple harmonic are overlapped through converging, low-frequency noise can be effectively reduced, the noise is reduced through the third hole array 14 on the surface of the reinforcing plate 15, noise is reduced again, finally the noise is discharged to the air outlet pipe 3 through the third hole array 14, the whole noise reduction process is finished, as two partition plates are added with two chambers, the reinforcing plate 15 and the three hole arrays are matched, more gas noise can be processed under a smaller volume, the device is structurally optimized and reasonably provided with plates, the volume of the muffler can be reduced while the exhaust noise of the engine is effectively reduced, the installation and the use of various engines are facilitated, and as porous sound absorbing materials are not needed, the noise reduction device has better effects than the common muffler under the conditions of high temperature resistance, moisture resistance, larger convection speed and higher cleaning requirements, and the bolts 17, the spring 18 and the accommodating hole 16 can effectively realize the buffering effect, in the process of silencing, a large amount of gas is gushed in, the silencer body can be driven to vibrate for a long time, the upper cover 8 and the lower cover 7 drive the supporting lugs 6 to vibrate, the supporting lugs are easy to fall off after long-time use, potential safety hazards are generated, the spring 18 is sleeved on the surface of the bolt 17, and the spring 18 can rebound after extrusion due to the influence of the reaction force of the spring 18, so that the silencer can be stably kept at the initial position, and the stability of the silencer is guaranteed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A muffler comprising a lower cover (7) and an upper cover (8), characterized in that: the utility model discloses a novel air conditioner, including upper cover (8) and lower cover (7), lower cover (7) top is located, lower cover (7) one side is equipped with intake pipe (2), the intake pipe (2) other end is equipped with ring flange (1), intake pipe (2) pass lower cover (7) to its inside middle section, intake pipe (2) surface is equipped with first baffle (10), intake pipe (2) surface still is equipped with second baffle (11), intake pipe (2) surface still is equipped with reinforcing plate (15), lower cover (7) one side is equipped with outlet duct (3), outlet duct (3) surface also is equipped with reinforcing plate (15), reinforcing plate (15) surface is equipped with third hole array (14), intake pipe (2) middle section is equipped with first hole array (12), intake pipe (2) rear section is equipped with second hole array (13), upper cover (8) surface is equipped with guard shield (4), upper cover (8) and lower cover (7) front portion are equipped with front end cap (5), upper cover (8) and lower cover (7) rear portion are equipped with back end cap (9), lower cover (7) one side is equipped with lug (6) and holds ring flange (16), the accommodating hole (16) is internally provided with a bolt (17), and the surface of the bolt (17) is provided with a spring (18).