CN202202924U

CN202202924U - Muffler

Info

Publication number: CN202202924U
Application number: CN2011203219205U
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: 2012-04-25
Anticipated expiration: 2021-08-30

Abstract

The utility model relates to the technical field of mufflers, and specifically provides a muffler with a better noise elimination effect. The muffler comprises a muffler body, an air inlet pipe and an air exhaust pipe, wherein the inside of the muffler body is sequentially divided into a chamber I, a chamber II and a chamber III by partition plates along the direction of inlet air. The muffler also comprises an inlet-air communicating pipe and an exhausted-air communicating pipe, wherein the muffler body is provided with an air inlet and an air outlet; one end of the inlet-air communicating pipe is connected with the inside of the air inlet, the other end of the inlet-air communicating pipe extends to the inside of the chamber II and is communicated with the chamber II, and one end of the air inlet pipe is communicated with the inlet-air communicating pipe; one end of the exhausted-air communicating pipe is arranged in the chamber III and communicated with the chamber III, the other end of the exhausted-air communicating pipe is connected with the air outlet, and one end of the air exhaust pipe is communicated with the exhausted-air communicating pipe; and the chamber II and the chamber I are communicated by a pipe II, and the chamber I and the chamber III are communicated by a pipe I. The muffler provided by the utility model is provided with three buffering chambers, so that an air flow can be buffered sufficiently; and through setting a flow-passing sequence for the three buffering chambers, the air flow can have a collision operation with the walls of the chambers many times, thereby increasing the noise elimination effect.

Description

Silencing apparatus

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 silencing apparatus; Comprise muffler body, suction tude and outlet pipe; Said muffler body inside is divided into chamber I, chamber II and chamber III along airintake direction by dividing plate successively; Also comprise air inlet connecting tube and exhaust connecting tube, said muffler body is provided with suction port and relief opening, said air inlet connecting tube one end be connected in the suction port inboard; The other end stretches into chamber II and is communicated with chamber II, and an end of said suction tude was communicated with air inlet connecting tube; End was arranged in the chamber III and with chamber III and was communicated with said exhaust connecting tube one, and the other end of exhaust connecting tube is connected with relief opening, and an end of said outlet pipe was communicated with exhaust connecting tube; Said chamber II is communicated with through pipe II with chamber I, and chamber I is communicated with through pipe I with chamber III.

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 air inlet connecting tube and exhaust connecting tube are arranged on the front cover.

Further, also be provided with the glass felt between said inner core and the urceolus.

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

Further, said plug I is provided with through hole.

Further, the exhaust end end of said air inlet connecting tube is provided with plug II, and air inlet connecting tube is communicated with chamber II through the hole that is arranged on its sidewall.

Further, said plug II is provided with through hole.

The beneficial effect of the utility model is: 3 buffer chamber are set, air-flow is fully cushioned, and through the setting to 3 buffer chamber overcurrent orders, air-flow is repeatedly bumped with chamber wall, increase the noise elimination effect; In further technological scheme, also be provided with the glass felt between inner core and the urceolus, further increase the noise elimination effect; Suction tude, suction tude and pipe I all are communicated with chamber through a plurality of apertures, when air-flow when the 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 reduces interference and injury the people.

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 acoustic wave filter structure schematic representation.

Embodiment

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

Referring to Fig. 1; The silencing apparatus of present embodiment, silencing apparatus comprises muffler body 1, suction tude 2 and outlet pipe 3; 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; Also comprise air inlet connecting tube 22 and exhaust connecting tube 23, said muffler body 1 is provided with suction port 21 and relief opening 24, said air inlet connecting tube 22 1 end be connected in suction port 21 inboards; The other end stretches into chamber II 8 and is communicated with chamber II 8, and an end of said suction tude 2 was communicated with air inlet connecting tube 22; End was arranged in the chamber III 9 and with chamber III 9 and was communicated with said exhaust connecting tube 23 1, and the other end of exhaust connecting tube 23 is connected with relief opening 24, and an end of said outlet pipe 3 was communicated with exhaust connecting tube 23; Said chamber II 8 is communicated with through pipe II 20 with chamber I 7, and chamber I 7 is communicated with through pipe I10 with chamber III 9.

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, air inlet connecting tube 22 be arranged on the front cover 13 exhaust connecting tube 23.Also be provided with glass felt 15 between said inner core 11 and the urceolus 12.

Said pipe I 10 both ends of the surface are provided with plug I 16, and the sidewall at pipe I 10 two ends is provided with a plurality of holes that are communicated with chamber III 9 with chamber I 7 respectively.Said plug I 16 is provided with through hole.

The exhaust end end of said air inlet connecting tube 22 is provided with plug II 17, and air inlet connecting tube 22 is communicated with chamber II 8 through the hole that is arranged on its sidewall.Said plug II 17 is provided with through hole.

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. silencing apparatus; Comprise muffler body (1), suction tude (2) and outlet pipe (3); It is characterized in that: 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; Also comprise air inlet connecting tube (22) and exhaust connecting tube (23), said muffler body (1) is provided with suction port (21) and relief opening (24), said air inlet connecting tube (22) one end be connected in suction port (21) inboard; The other end stretches into chamber II (8) and is communicated with chamber II (8), and an end of said suction tude (2) was communicated with air inlet connecting tube (22); End was arranged in the chamber III (9) and with chamber III (9) and was communicated with said exhaust connecting tube (23) one, and the other end of exhaust connecting tube (23) is connected with relief opening (24), and an end of said outlet pipe (3) was communicated with exhaust connecting tube (23); Said chamber II (8) is communicated with through pipe II (20) with chamber I (7), and chamber I (7) is communicated with through pipe I (10) with chamber III (9).

2. silencing apparatus 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 air inlet connecting tube (22) and exhaust connecting tube (23) are arranged on the front cover (13).

3. silencing apparatus as claimed in claim 2 is characterized in that: also be provided with glass felt (15) between said inner core (11) and the urceolus (12).

4. silencing apparatus as claimed in claim 3 is characterized in that: said pipe I (10) both ends of the surface are provided with plug I (16), and the sidewall at pipe I (10) two ends is provided with a plurality of holes that are communicated with chamber III (9) with chamber I (7) respectively.

5. silencing apparatus as claimed in claim 4 is characterized in that: said plug I (16) is provided with through hole.

6. silencing apparatus as claimed in claim 5 is characterized in that: the exhaust end end of said air inlet connecting tube (22) is provided with plug II (17), and air inlet connecting tube (22) is communicated with chamber II (8) through the hole that is arranged on its sidewall.

7. silencing apparatus as claimed in claim 6 is characterized in that: said plug II (17) is provided with through hole.