CN212898673U

CN212898673U - Exhaust bellows for engine unit

Info

Publication number: CN212898673U
Application number: CN202021472929.1U
Authority: CN
Inventors: 汪淼
Original assignee: Wuhan Zhongkangxing Power Engineering Co ltd
Current assignee: Wuhan Zhongkangxing Power Engineering Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-04-06
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses an engine unit is with exhaust bellows, including mounting flange, bellows and coupling mechanism, mounting flange's junction fixed mounting has spacing network structure, and there is the sound absorbing layer bottom of bellows, coupling mechanism's junction fixedly connected with gas vent, the utility model discloses the beneficial effect who reaches is: the utility model discloses compact structure, convenient to use, the function is practical, fixed plate one is connected with the gas vent, has made things convenient for waste gas's discharge, spacing network structure on the bellows, the deformation and the direction of restraint bellows that can be fine, the setting up of bloop has reduced the noise that the bellows striking brought, fixed plate one in the mutually supporting of connecting plate, has increased the steadiness of device, on the material of inhaling sound layer and bellows is selected, has adopted the excellent material of practicality high quality, has increased the life of device.

Description

Exhaust bellows for engine unit

Technical Field

The utility model relates to an exhaust bellows for the engine unit, in particular to exhaust bellows for the engine unit belongs to automobile exhaust system technical field.

Background

The exhaust corrugated pipe is used in the exhaust systems of various engines such as an engine for a vehicle, an engine for power generation or a marine engine, and the corrugated pipe is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction, and the exhaust corrugated pipe is used in the exhaust system of the engine and can play a role in absorbing shock and reducing noise and prolonging the service life of an exhaust silencing system.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide an exhaust bellows for engine unit.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an exhaust bellows for engine group, mounting flange, bellows, coupling mechanism, mounting flange's junction fixed mounting has spacing network structure, the bottom fixed mounting of bellows has the sound absorbing layer, the bottom on sound absorbing layer is connected with fixed plate two, the junction of fixed plate two has the silencing device inlayer, there is the bloop in the inside of silencing device inlayer, one side junction fixed mounting of coupling mechanism has the connecting pipe, the connecting plate is installed to coupling mechanism's opposite side, the connecting plate links to each other with fixed plate one, one side stationary phase of fixed plate one even has the gas vent.

Preferably, a first fixing plate is installed at the joint of the connecting pipe, and an exhaust port is formed in one side of the first fixing plate.

Preferably, the top of the corrugated pipe is provided with a limiting net structure, and the limiting net structure is a metal mesh grid.

Preferably, the inner layer of the silencer is internally provided with silencing holes which are longitudinally distributed.

Preferably, the second fixing plate is of a telescopic structure and is tightly connected with the inner layer of the silencer.

Preferably, the joint of the corrugated pipe is provided with a sound absorption layer, and the sound absorption layer is made of glass fiber.

Preferably, the bellows is a metal airtight bellows.

The utility model discloses the beneficial effect who reaches is: the utility model has novel structure, convenient use, practical function, high integrity of the device, compact structure, and the design of the fixed flange, which can effectively fix the exhaust device at the rear of the vehicle, the spacing net structure on the corrugated pipe is a metal woven net, which can better restrain and guide the deformation degree and direction of the corrugated pipe, effectively avoid the performance of the exhaust system influenced by the overlarge deformation of the corrugated pipe when in work, and can avoid the corrugated pipe from being impacted by the outside to a certain extent, the corrugated pipe is a metal airtight corrugated pipe, which can move but not leak, the metal material can prevent rusting, the service life is prolonged, the fixed plate is a telescopic design, which guides the exhaust airflow, the silencing hole is arranged in the inner layer of the silencing device, and the sound absorption layer is arranged between the corrugated pipes in the inner layer of the silencing device, when the sound wave passes through the exhaust corrugated pipe, the sound absorption layer can effectively, the noise of well, high-frequency can be eliminated, the bellows dress can also be avoided and the noise is taken, and fixed plate two can prevent that the sound absorbing layer from freely moving, and the material on sound absorbing layer adopts glass fiber, and the sound insulation is good, and the heat resistance is strong, and fixed plate one firmly fixes exhaust apparatus with mutually supporting of connecting plate, makes the gas vent can stabilize the function in a flexible way.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the sound absorbing device of the present invention;

in the figure, 1, a flange is fixed; 2. a limiting net structure; 3. a bellows; 4. a silencing hole; 5. a sound absorbing layer; 6. an inner layer of a silencer; 7. a connecting pipe; 8. a connecting mechanism; 9. a first fixing plate; 10. a connecting plate; 11. an exhaust port; 12. and a second fixing plate.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-2, the utility model provides an exhaust bellows for engine group, including mounting flange 1, bellows 3, coupling mechanism 8, mounting flange 1's junction fixed mounting has spacing network structure 2, the bottom fixed mounting of bellows 3 has sound absorbing layer 5, sound absorbing layer 5's bottom is connected with fixed plate two 12, there is silencing device inlayer 6 in the junction of fixed plate two 12, there is bloop 4 in silencing device inlayer 6's inside, one side junction fixed mounting of coupling mechanism 8 has connecting pipe 7, connecting plate 10 is installed to coupling mechanism 8's opposite side, connecting plate 10 links to each other with fixed plate one 9, one side of fixed plate one 9 is fixed and links to each other there is gas vent 11.

Furthermore, a first fixing plate 9 is installed at the joint of the connecting pipe 7, and an exhaust port 11 is formed in one side of the first fixing plate 9, so that the stability of the device is improved, and gas exhaust is facilitated.

Further, spacing network structure 2 is installed at 3 tops of bellows, and spacing network structure 2 structure is the metal mesh grid, and restraint that can be better and guide bellows 3's deformation degree and direction.

Furthermore, the silencing holes 4 are formed in the inner layer 6 of the silencing device, and the silencing holes 4 are longitudinally distributed, so that noise caused by collision between the corrugated pipe 3 and the inner layer 6 of the silencing device can be uniformly and effectively absorbed.

Furthermore, the second fixing plate 12 is of a telescopic structure, and the second fixing plate 12 is tightly connected with the inner layer 6 of the silencer, so that exhaust airflow can be guided, and the smoothness of exhaust is improved.

Furthermore, the sound absorption layer 5 is arranged at the joint of the corrugated pipe 3, and the sound absorption layer 5 is made of glass fiber, so that the sound insulation performance is good, the heat resistance is high, and the tensile degree is high.

Furthermore, the corrugated pipe 3 is a metal airtight corrugated pipe, so that the service life is long, and the practicability is improved.

Specific, in using the utility model discloses the time, at first need examine the device, see whether there is the damage, after the inspection is errorless, install mounting flange 1 after the car firmly, start the function when the vehicle, the exhaust gas that the engine produced, reach silencing device inlayer 6, waste gas is absorbed a part noise by sound absorbing layer 5 in the transmission, through gaseous continuous transport, bellows 3 can be collided with silencing device inlayer 6 production, at this moment spacing network structure 2 will protect bellows 3, prevent that bellows 3 from producing deformation, telescopic fixed plate two 12 can be through gaseous flow with gas guide in silencing hole 4, reach further amortization, waste gas after the amortization reachs by coupling mechanism 8 and the fixed gas vent 11 of a fixed plate 9 through connecting pipe 7, go out through gas vent 11.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an exhaust bellows for engine unit, includes mounting flange (1), bellows (3), coupling mechanism (8), its characterized in that: the utility model discloses a silencer, including bellows (3), fixed flange (1), connecting portion fixed mounting have spacing network structure (2), the bottom fixed mounting of bellows (3) has sound absorbing layer (5), the bottom of sound absorbing layer (5) is connected with fixed plate two (12), the junction of fixed plate two (12) has silencing device inlayer (6), there is bloop (4) in the inside of silencing device inlayer (6), one side junction fixed mounting of coupling mechanism (8) has connecting pipe (7), connecting plate (10) are installed to the opposite side of coupling mechanism (8), connecting plate (10) link to each other with fixed plate (9), one side of fixed plate (9) is fixed and links to each other gas vent (11).

2. An exhaust corrugated pipe for an engine block as claimed in claim 1, wherein a first fixing plate (9) is installed at the connection of the connection pipe (7), and an exhaust port (11) is formed at one side of the first fixing plate (9).

3. An exhaust corrugated pipe for an engine block as claimed in claim 1, wherein the top of the corrugated pipe (3) is provided with a limiting net structure (2), and the limiting net structure (2) is a metal mesh grid.

4. An exhaust bellows for an engine block according to claim 1, wherein the muffler inner layer (6) has muffling holes (4) therein, and the muffling holes (4) are longitudinally distributed.

5. The exhaust bellows for the engine block as set forth in claim 1, wherein the second fixing plate (12) is of a telescopic structure, and the second fixing plate (12) is tightly connected to the inner layer (6) of the muffler device.

6. The exhaust corrugated pipe for the engine block as claimed in claim 1, wherein the joint of the corrugated pipe (3) is provided with a sound absorption layer (5), and the sound absorption layer (5) is made of glass fiber.

7. An exhaust bellows for an engine block according to claim 1, characterized in that the bellows (3) is a metal gas tight bellows.