CN202209198U

CN202209198U - Silencer with built-in air inlet tube

Info

Publication number: CN202209198U
Application number: CN2011203219474U
Authority: CN
Inventors: 艾刚; 涂定国
Original assignee: CHONGQING BEIBEI DISTRICT FENGHUO MACHINERY MANUFACTURING Co Ltd
Current assignee: CHONGQING BEIBEI DISTRICT FENGHUO MACHINERY MANUFACTURING Co Ltd
Priority date: 2011-08-30
Filing date: 2011-08-30
Publication date: 2012-05-02
Anticipated expiration: 2021-08-30

Abstract

The utility model relates to the technical field of silencers, in particular to a silencer with a built-in air inlet tube, which is better in silencing effect and comprises a silencer body, an exhaust pipe and an air inlet. The air inlet tube extending inwards is arranged on the air inlet, and the inner portion of the silencer body is divided sequentially into a cavity I, a cavity II and a cavity III along the air inlet direction by partition plates. An exhausting end of the air inlet tube extends into the cavity II, the cavity II is communicated with the cavity III through a first tube, the cavity III is communicated with the cavity I through a second tube, and an air inlet end of the exhaust pipe is communicated with the cavity I. The silencer with the built-in air inlet tube is provided with three buffering cavities so that air flow can be fully buffered, and users can arrange flow passing sequence of the three buffering cavities so that the air flow can collide with walls of the cavities, thereby improving silencing effect.

Description

The silencing apparatus of built-in suction tude

Technical field

The utility model relates to the silencing apparatus technical field.

Background technique

Device such as internal-combustion engine, air compressor, the air-flow that its when operation produces can send huge noise, therefore, needs silencing apparatus to eliminate air power noise, stops sound transmission and allows the air communication mistake.

But the effect that present silencing apparatus abates the noise is relatively poor.

The model utility content

In view of this, the purpose of the utility model provides a kind of better silencing apparatus of noise effects of eliminating.

The purpose of the utility model is achieved in that and comprises muffler body and outlet pipe; Also comprise suction port; Said suction port is provided with the suction tude that extends internally; Said muffler body inside is divided into chamber I, chamber II and chamber III along airintake direction by dividing plate successively, and the exhaust end of said suction tude stretches in the chamber II and with chamber II and is communicated with, and said chamber II is communicated with through pipe I with chamber III; Said chamber III is communicated with through pipe II with chamber I, and the inlet end of said outlet pipe is communicated with chamber I.

Further, said muffler body comprises inner core, urceolus, front cover and rear end cover, is placed in the urceolus in the said inner core, and front cover and rear end cover are arranged at the two ends of urceolus respectively, and suction tude and outlet pipe are stretched in the muffler body by front cover.

Further, also be provided with the noise reduction cotton between said inner core and the urceolus.

Further, the sealing of said pipe I both ends of the surface, the sidewall at pipe I two ends is provided with a plurality of holes that are communicated with chamber III with chamber II respectively.

Further, said pipe II is positioned at the end face sealing of muffler body, and pipe II is communicated with chamber I through the hole that is arranged on its sidewall.

Further, said muffler body outer side wall is provided with stiffening plate, and said stiffening plate is provided with support.

Further, said suction tude is connected in the suction port inboard through flange.

The beneficial effect of the utility model is: 3 buffer chamber are set; Air-flow is fully cushioned; And, air-flow is repeatedly bumped with chamber wall through setting to 3 buffer chamber overcurrent orders, increase the noise elimination effect; Built-in suction tude can make things convenient for being connected of silencing apparatus and outlet pipes such as internal-combustion engine; In further technological scheme, also be provided with the noise reduction cotton between inner core and the urceolus, further increase the noise elimination effect, and have effect of heat insulation; Pipe I is communicated with buffer chamber through a plurality of apertures with pipe II, when air-flow passes through through hole, the frequency spectrum of jet noise will shift to high frequency or ultra-high frequency, the audible sound composition in the frequency spectrum is obviously reduced, thereby minimizing is to people's interference and injury.

Description of drawings

For the purpose, technological scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done further to describe in detail below:

Fig. 1 shows the silencing apparatus internal structure schematic representation of built-in suction tude;

Fig. 2 shows the silencing apparatus external structure schematic representation of built-in suction tude.

Embodiment

Below will carry out detailed description to the preferred embodiment of the utility model.

Referring to Fig. 1, the silencing apparatus of the built-in suction tude of present embodiment comprises muffler body 1 and outlet pipe 3; Also comprise suction port 21; Said suction port 21 is provided with the suction tude 2 that extends internally, and said suction tude 2 is connected in suction port 21 inboards through flange 22, and said muffler body 1 inside is divided into chamber I 7, chamber II 8 and chamber III 9 along airintake direction by dividing plate 4,5 successively; The exhaust end of said suction tude 2 stretches in the chamber II 8 and with chamber II 8 and is communicated with; Said chamber II 8 is communicated with through pipe I 10 with chamber III 9, and said chamber III 9 is communicated with through pipe II 20 with chamber I 7, and the inlet end of said outlet pipe 3 is communicated with chamber I 7.

Said muffler body 1 comprises inner core 11, urceolus 12, front cover 13 and rear end cover 14; Be placed in the urceolus 12 in the said inner core 11; Front cover 13 and rear end cover 14 are arranged at the two ends of urceolus 12 respectively, and suction tude 2 is stretched in the muffler body 1 by front cover 13 with outlet pipe 3.Also be provided with noise reduction cotton 15 between said inner core 11 and the urceolus 12.The sealing of said pipe I 10 both ends of the surface, the sidewall at pipe I 10 two ends are provided with a plurality of holes that are communicated with chamber III 9 with chamber II 8 respectively.Said pipe II 20 is positioned at the end face sealing of muffler body 1, and pipe II 20 is communicated with chamber I 7 through the hole that is arranged on its sidewall.

Referring to Fig. 2, said muffler body 1 outer side wall is provided with stiffening plate 15, and said stiffening plate 15 is provided with support 16, and said support is used for fixing muffler body 1.

What the above was merely the utility model preferably is not limited to the utility model, and obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and the scope of the utility model the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.

Claims

1. the silencing apparatus of built-in suction tude; Comprise muffler body (1) and outlet pipe (3); It is characterized in that: also comprise suction port (21), said suction port is provided with the suction tude (2) that extends internally, and said muffler body (1) is inner to be divided into chamber I (7), chamber II (8) and chamber III (9) along airintake direction by dividing plate (4,5) successively; The exhaust end of said suction tude (2) stretches in the chamber II (8) and with chamber II (8) and is communicated with; Said chamber II (8) is communicated with through pipe I (10) with chamber III (9), and said chamber III (9) is communicated with through pipe II (20) with chamber I (7), and the inlet end of said outlet pipe (3) is communicated with chamber I (7).

2. the silencing apparatus of built-in suction tude as claimed in claim 1; It is characterized in that: said muffler body (1) comprises inner core (11), urceolus (12), front cover (13) and rear end cover (14); Be placed in the said inner core (11) in the urceolus (12); Front cover (13) and rear end cover (14) are arranged at the two ends of urceolus (12) respectively, and outlet pipe (3) is stretched in the muffler body (1) by front cover (13).

3. the silencing apparatus of built-in suction tude as claimed in claim 2 is characterized in that: also be provided with noise reduction cotton (15) between said inner core (11) and the urceolus (12).

4. the silencing apparatus of built-in suction tude as claimed in claim 3 is characterized in that: the sealing of said pipe I (10) both ends of the surface, the sidewall at pipe I (10) two ends are provided with a plurality of holes that are communicated with chamber III (9) with chamber II (8) respectively.

5. the silencing apparatus of built-in suction tude as claimed in claim 4 is characterized in that: said pipe II (20) is positioned at the end face sealing of muffler body (1), and pipe II (20) is communicated with chamber I (7) through the hole that is arranged on its sidewall.

6. like the silencing apparatus of each described built-in suction tude in the claim 1 to 4, it is characterized in that: said muffler body (1) outer side wall is provided with stiffening plate (15), and said stiffening plate (15) is provided with support (16).

7. the silencing apparatus of built-in suction tude as claimed in claim 6, it is characterized in that: said suction tude (2) is connected in suction port (21) inboard through flange (22).