CN211087919U

CN211087919U - Silencer

Info

Publication number: CN211087919U
Application number: CN201921736125.5U
Authority: CN
Inventors: 梁增胜
Original assignee: Dongguan Refrigeration Equipment Parts Co ltd
Current assignee: Dongguan Refrigeration Equipment Parts Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-07-24
Anticipated expiration: 2029-10-16

Abstract

A silencer comprises an upper cylinder body with an opening at the bottom, a lower cylinder body with an opening at the top, an air outlet pipe and an air inlet pipe, wherein the upper cylinder body and the lower cylinder body are connected in a threaded manner to form an internal space of a capsule-shaped silencer; the inner part of the lower cylinder is further sleeved with buffer glue along the wall, a U-shaped inserting hole is formed in the middle position of the upper surface of the buffer glue in a downward forming mode, a U-shaped sleeve with an upward opening is inserted into the U-shaped inserting hole, and the bottom of the air inlet pipe extends to the position close to the bottom end of the U-shaped sleeve.

Description

Silencer

Technical Field

The utility model belongs to the technical field of the silencer and specifically relates to a silencer is related to.

Background

The silencer is an airflow pipeline with noise propagation, noise in the pipeline can be attenuated or reflected by using a pipeline and an elbow with sound-absorbing cotton or noise reduction devices such as a pipeline with suddenly changed sectional area and other discontinuous acoustic impedance, but the existing silencer can generate a vibration effect after receiving the impact of impact airflow because the internal elbow is integrally connected with a silencer shell, and the silencer shell can generate slight shock due to the connected driving effect, so that certain noise still exists, and more impurities can be absorbed by the silencer after the silencer is used for a long time and are left on the sound-absorbing cotton, and the silencing effect of the silencer can be reduced due to the fact that the silencer cannot be cleaned in time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A silencer comprises an upper cylinder body with an opening at the bottom, a lower cylinder body with an opening at the top, an air outlet pipe, an air inlet pipe and a silencer body, wherein the upper cylinder body and the lower cylinder body are connected in a threaded manner to form an inner space of a capsule-shaped silencer; the inner part of the lower cylinder is further sleeved with buffer glue along the wall, a U-shaped inserting hole is formed in the middle position of the upper surface of the buffer glue in a downward forming mode, a U-shaped sleeve with an upward opening is inserted into the U-shaped inserting hole, and the bottom of the air inlet pipe extends to the position close to the bottom end of the U-shaped sleeve.

Furthermore, sound-absorbing cotton is adhered to the inner wall of the U-shaped sleeve in an adherence manner.

Furthermore, the opening position of the U-shaped sleeve is higher than the pipe orifice of the air outlet pipe in the inner space.

Further, go up barrel bottom opening and lean out to extend and have the skew wall, the skew wall bottom still extends downwards and has the internal thread lateral wall to the open-top of barrel is equipped with the external screw thread lateral wall down, and internal thread lateral wall and external screw thread lateral wall threaded connection, and has sealed glue of round at the intussuseption of skew wall.

Furthermore, the openings of the air inlet pipe and the air outlet pipe which are positioned outside are internally provided with dustproof plugs.

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

the U-shaped sleeve is arranged around the inner space through the air inlet pipe, the U-shaped sleeve and the inner wall of the lower barrel are fixed through buffering glue in a buffering mode, when impact air flow enters the inner space of the silencer, the U-shaped sleeve and the buffering glue act together to buffer the air flow with impact performance, noise generated by impact is reduced, and due to the effect of the buffering glue, the U-shaped sleeve cannot be connected to the side wall of the lower barrel due to vibration generated by the impact air flow, and effective isolation of the noise is guaranteed.

The shell through with the muffler sets to the structure that has barrel and barrel down, can carry out the split to the muffler to can wash or the change of part the muffler is inside, effectively increase the life of muffler.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the external structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic diagram of a partially enlarged structure at a in fig. 2 according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, a muffler includes an upper cylinder 1 with an open bottom, a lower cylinder 2 with an open top, an air outlet pipe 4, and an air inlet pipe 3, wherein the upper cylinder 1 and the lower cylinder 2 are connected by a screw thread to form an internal space of a capsule-shaped muffler, the air inlet pipe 3 vertically extends downwards into the internal space from the middle position of the top of the upper cylinder 1, the air outlet pipe 4 horizontally extends into the inner side wall of the upper cylinder 1 from the outer side wall of the upper cylinder 1 to communicate the air inlet pipe 3 with the internal space, and the air outlet pipe 4 is perpendicular to the air inlet pipe 3; the interior of the lower barrel body 2 is further sleeved with a buffer glue 5 in an adherence manner, a U-shaped inserting hole 51 is formed downwards in the middle position of the upper surface of the buffer glue 5, a U-shaped sleeve 6 with an upward opening is inserted into the U-shaped inserting hole 51, and the bottom of the air inlet pipe 3 extends to a position close to the bottom end of the U-shaped sleeve 6.

In this embodiment, through setting the shell of muffler to the removable structure that has barrel 1 and barrel 2 down, but make the internals structure accessible split of silencer clear up or change, thereby the life of extension silencer, U type sleeve 6 is established to the rethread with the cover around intake pipe 3 is located the silencer inner space, thereby the impact air current that makes the entering silencer reduces the impact force through U type sleeve 6 and reduces the noise, and pass through cushion rubber 5 with U type sleeve 6 and barrel 2 fixed connection down, thereby effectively reduce the produced noise of vibrations of barrel 2 down.

As further shown in fig. 2, sound-absorbing cotton 7 is adhered to the inner wall of the U-shaped sleeve 6, so as to further absorb noise generated by the impinging air flow.

As shown in fig. 2, the opening of the U-shaped sleeve 6 is higher than the opening of the air outlet tube 4 in the inner space, so that the impact air can form a turn after coming out of the U-shaped sleeve 6, and the generation of noise caused by the direct impact of the air on the air outlet tube 4 is further reduced.

Further as shown in fig. 3, go up 1 bottom openings of barrel and lean out to extend and have skew wall 11, the 11 bottom of skew wall still downwardly extending has internal thread lateral wall 12 to the open-top of barrel 2 is equipped with external thread lateral wall 21 down, internal thread lateral wall 12 and external thread lateral wall 21 threaded connection, and have sealed glue 14 of round at skew wall 11 endotheca, through sealed glue 14, guarantee that muffler inner space and exterior space can seal sound insulation.

As further shown in fig. 2, the openings of the inlet pipe 3 and the outlet pipe 4 located outside are inserted with dust plugs 8 to prevent impurities in the air from entering the silencer.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A silencer comprises an upper cylinder body with an opening at the bottom, a lower cylinder body with an opening at the top, an air outlet pipe and an air inlet pipe, and is characterized in that the upper cylinder body and the lower cylinder body are connected in a threaded manner to form an internal space of a capsule-shaped silencer, the air inlet pipe vertically extends downwards into the internal space from the middle position of the top of the upper cylinder body, the air outlet pipe horizontally extends into the inner side wall of the upper cylinder body from the outer side wall of the upper cylinder body to enable the air inlet pipe to be communicated with the internal space, and the air outlet pipe is vertical to the air inlet pipe; the inner part of the lower cylinder is further sleeved with buffer glue along the wall, a U-shaped inserting hole is formed in the middle position of the upper surface of the buffer glue in a downward forming mode, a U-shaped sleeve with an upward opening is inserted into the U-shaped inserting hole, and the bottom of the air inlet pipe extends to the position close to the bottom end of the U-shaped sleeve.

2. The muffler of claim 1, wherein sound absorbing cotton is adhered to the inner wall of the U-shaped sleeve.

3. The muffler of claim 1, wherein the opening of the U-shaped sleeve is higher than the opening of the outlet pipe in the inner space.

4. The muffler of claim 1, wherein the bottom opening of the upper cylinder is outwardly and obliquely extended with an inclined wall, the bottom end of the inclined wall is further downwardly extended with an inner threaded side wall, the top opening of the lower cylinder is provided with an outer threaded side wall, the inner threaded side wall is in threaded connection with the outer threaded side wall, and a ring of sealant is sleeved in the inclined wall.

5. The muffler of claim 1, wherein dust plugs are inserted into the openings of the inlet pipe and the outlet pipe located at the outside.