CN210106138U

CN210106138U - Pneumatic silencer

Info

Publication number: CN210106138U
Application number: CN201920453031.0U
Authority: CN
Inventors: 郑乘风
Original assignee: Ruian City Ledeen Auto Parts Co
Current assignee: Ruian City Ledeen Auto Parts Co
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-02-21
Anticipated expiration: 2029-04-04

Abstract

The utility model discloses a pneumatic silencer, which belongs to the field of pneumatic diaphragm pump accessories and comprises a cylinder body and an outer cover, wherein the upper end surface of the outer cover is provided with an air inlet, the inner wall surface of the cylinder body is fixedly connected with a sound-absorbing cylinder, the lower surface of the cylinder body is fixedly connected with a sealing cover, the outer surfaces of the cylinder body and the sound-absorbing cylinder are provided with air release ports, the inner end surfaces of the upper side and the lower side of the sound-absorbing cylinder are fixedly connected with an I-shaped sound-absorbing circular plate and a sound-absorbing circular plate, the inner side surface of the center of the I-shaped sound-absorbing circular plate is provided with a large opening, the outer surface of the upper end of the I-shaped sound-absorbing circular plate is provided with a first air guide large opening, the lower end surface of the I-shaped sound-absorbing circular plate is provided with a first air, when the air exhaust cover is replaced, only the barrel part needs to be detached, and the outer cover is further connected to the air exhaust opening, so that the air exhaust cover is convenient to replace and use.

Description

Pneumatic silencer

Technical Field

The utility model relates to a pneumatic diaphragm pump accessory field, more specifically say, relate to a pneumatic silencer.

Background

The pneumatic diaphragm pump is a novel conveying machine, adopts compressed air as a power source, and can pump and suck up various corrosive liquids, liquids with particles, high-viscosity, volatile, inflammable and extremely toxic liquids;

the gas vent of pneumatic diaphragm pump is because the exhaust pressure is great, the during operation can produce great vibration and noise, consequently need install dedicated silencer in the gas vent with the noise reduction, current silencer is falling when making an uproar the gas flow through can not be good carry out a lot of variables, it falls the performance of making an uproar weak, current silencer in addition is mostly a whole, silencer air inlet adopts threaded connection in pneumatic diaphragm pump exhaust port department when installing, still need all pull down when changing to change, it is very inconvenient.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, an object of the utility model is to provide a pneumatic silencer, through add the processing shape and inhale the sound plectane in inhaling the sound drum, it has a plurality of openings with big or small to distribute at its surface, can carry out a lot of variables when the air current passes through, improve noise cancelling effect, through adopting the sectional type design, install the silencer through the joint structure and wholly cover in the dustcoat, when changing, only need pull down the barrel part, the dustcoat still is connected on the gas vent, be convenient for change the use.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a pneumatic silencer, includes barrel, enclosing cover, the upper end surface of enclosing cover is equipped with the air inlet, the inner wall fixed surface of barrel is connected with inhales the sound drum, the lower fixed surface of barrel even has sealed lid, the barrel is equipped with disappointing mouthful with the surface of inhaling the sound drum, inhale the equal fixedly connected with worker's shape of the upper and lower side inner surface of sound drum and inhale the sound plectane, the inboard surface in the center department of worker's shape sound plectane is equipped with big opening, the upper end surface of worker's shape sound plectane is equipped with first air guide macrostoma, the lower extreme surface of worker's shape sound plectane is equipped with first air guide osculum, first air guide macrostoma and first air guide osculum evenly distributed inhales the upper end and the lower extreme surface of sound plectane at worker's, through add the design shape and inhale the sound plectane in inhaling the sound drum, it has a plurality of openings with big or small to distribute on its surface, can carry out a lot of variables when the air current passes through, improves noise cancelling effect, through adopting the sectional type design, installs the silencer whole on the enclosing cover through the joint structure, when changing, only needs to pull down the barrel part, and the enclosing cover still is connected on the gas vent, is convenient for change the use.

Furthermore, the second air guide small opening and the second air guide large opening are uniformly distributed on the surface of the sound-absorbing circular plate.

Further, the upper end surface fixed connection of sealed lid has the circular concave piece, and the circular concave piece adopts soft sponge material, can collide sealed lid when the air current reachs the bottom, will produce sound at this moment, adds the circular concave piece of establishing sponge material and can carry out the air current ring towards, carries out the amortization, improves the amortization performance.

Furthermore, the sound absorption cylinder is made of polyester fiber sound absorption materials, and the I-shaped sound absorption circular plate and the sound absorption circular plate are made of polyester fiber sound absorption materials, so that the sound absorption cylinder has good sound absorption performance and good sound attenuation performance.

Furthermore, the inner end surfaces of the front side and the rear side of the outer cover are connected with a clamping block and a spring in a sliding way through a sliding chute,

further, the inner end surface of the spring presses the outer end surface of the fixture block.

Furthermore, the inner end surfaces of the clamping blocks are connected to the inner side surfaces of the front side and the rear side of the upper end of the barrel body in a sliding mode through the clamping grooves, when the silencer is installed, the barrel body is clamped into the outer cover, the clamping blocks are driven to bounce through the springs, the clamping blocks can be rapidly clamped into the clamping grooves of the barrel body, the barrel body can be fixed, and the silencer is convenient to install and fix and is convenient to use.

Furthermore, the draw pin is fixedly connected to the center of the outer surface of the clamping block, the spring is sleeved on the outer surface of the draw pin, the pull head is fixedly connected to the outer surface of the draw pin, the draw pin is convenient to pull through the pull head to slide outwards, the clamping block can be driven to slide outwards to separate from the clamping groove, the silencer main body can be rapidly disassembled, and the silencer main body is convenient to use.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) through add the design shape and inhale the sound plectane in inhaling the sound drum, it has a plurality of openings with big or small to distribute on its surface, can carry out a lot of variables when the air current passes through, improves noise cancelling effect, through adopting the sectional type design, installs the silencer whole on the enclosing cover through the joint structure, when changing, only needs to pull down the barrel part, and the enclosing cover still is connected on the gas vent, is convenient for change the use.

(2) Can collide sealed lid when the air current reachs the bottom, will produce sound at this moment, add the circular concave block of establishing the sponge material and can carry out the air current ring towards, carry out the amortization, improve the amortization performance.

(3) The sound-absorbing cylinder is made of polyester fiber sound-absorbing material, and the I-shaped sound-absorbing circular plate and the sound-absorbing circular plate are made of polyester fiber sound-absorbing material, so that the sound-absorbing cylinder has good sound-absorbing performance and good sound-deadening performance.

(4) When the silencer is installed, the barrel is clamped into the outer cover, the clamping block is driven to bounce through the spring, the clamping block can be quickly clamped into the clamping groove of the barrel, the barrel can be fixed, the silencer is convenient to install and fix, and the silencer is convenient to use.

(5) The pull head is convenient for pulling the pull pin to slide outwards, the clamping block can be driven to slide outwards and separate from the clamping groove, the silencer main body can be quickly disassembled, and the silencer is convenient to use.

Drawings

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

FIG. 2 is a schematic view of a partial structure of an I-shaped acoustical circular plate according to the present invention;

FIG. 3 is a schematic view of a partial structure of the sound-absorbing circular plate of the present invention;

fig. 4 is an enlarged view of the position a of the present invention.

The reference numbers in the figures illustrate:

the sound absorption device comprises a barrel body 1, an outer cover 2, an air inlet 3, a sealing cover 4, a sound absorption cylinder 5, an air leakage opening 6, an I-shaped sound absorption circular plate 7, a sound absorption circular plate 8, a large opening 9, a first air guide large opening 10, a first air guide small opening 11, a second air guide small opening 12, a second air guide large opening 13, a circular concave block 14, a sliding groove 15, a clamping block 16, a spring 17, a clamping groove 18, a pulling pin 19 and a pulling head 20.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

1. referring to fig. 1-4, a pneumatic muffler comprises a cylinder 1 and an outer cover 2, wherein an air inlet 3 is disposed on the upper end surface of the outer cover 2, a sound-absorbing cylinder 5 is fixedly connected to the inner wall surface of the cylinder 1, a sealing cover 4 is fixedly connected to the lower surface of the cylinder 1, air vents 6 are disposed on the outer surfaces of the cylinder 1 and the sound-absorbing cylinder 5, an i-shaped sound-absorbing circular plate 7 and a sound-absorbing circular plate 8 are fixedly connected to the inner end surfaces of the upper and lower sides of the sound-absorbing cylinder 5, a large opening 9 is disposed on the inner side surface of the center of the i-shaped sound-absorbing circular plate 7, a first air guide large opening 10 is disposed on the outer surface of the upper end of the i-shaped sound-absorbing circular plate 7, a first air guide small opening 11 is disposed on the lower end surface of the i-shaped sound-absorbing circular plate 7, a second air, the outer end surface of the sound-absorbing circular plate 8 is provided with a second air guide large opening 13, and the second air guide small opening 12 and the second air guide large opening 13 are uniformly distributed on the surface of the sound-absorbing circular plate 8.

Referring to fig. 1-3, a circular concave block 14 is fixedly connected to the upper end surface of the sealing cover 4, the circular concave block 14 is made of soft sponge, when the airflow reaches the bottom, the airflow collides with the sealing cover 4, sound is generated at this time, the circular concave block 14 made of sponge is additionally arranged to perform airflow circular flushing, so as to perform sound attenuation, and improve sound attenuation performance, the sound absorption cylinder 5 is made of polyester fiber sound absorption material, and the i-shaped sound absorption circular plate 7 and the sound absorption circular plate 8 are also made of polyester fiber sound absorption material, so that sound absorption performance is good, and sound attenuation performance is good.

Referring to fig. 1 and 4, the inner end surfaces of the front side and the rear side of the outer cover 2 are slidably connected with a clamping block 16 and a spring 17 through a sliding slot 15, the inner end surface of the spring 17 is extruded on the outer end surface of the clamping block 16, the inner end surface of the clamping block 16 is slidably connected on the inner side surfaces of the front side and the rear side of the upper end of the cylinder 1 through a clamping slot 18, when the silencer is mounted, the cylinder 1 is clamped into the outer cover 2, the clamping block 16 is driven by the spring 17 to bounce, the clamping block 16 can be quickly clamped into the clamping slot 18 of the cylinder 1, the cylinder 1 can be fixed, the whole silencer can be conveniently mounted and fixed, the silencer is convenient to use, the pull pin 19 is fixedly connected at the center of the outer surface of the clamping block 16, the spring 17 is sleeved on the outer surface of the pull pin 19, the outer surface of the pull pin 19 is.

When the sound-absorbing circular plate is used, gas enters through the gas inlet 3, is discharged through the first gas guide large opening 10 at the upper end of the I-shaped sound-absorbing circular plate 7 and then is discharged through the first gas guide small opening 11 at the lower end, the flow rate of the gas is changed from small to large and from large to small for the first time, the gas flow is simultaneously discharged through the large opening 9 at the center, reaches the sound-absorbing circular plate 8 and is discharged through the second gas guide small opening 12 and the second gas guide large opening 13, the flow rate of the gas is changed from small to large and from large to small for the second time, the gas flow is discharged through the air leakage opening 6 at the same time, the gas flow collides the sealing cover 4 when reaching the bottom, at the moment, sound is generated, the circular concave block 14 made of sponge materials can carry out air flow circular flushing for sound attenuation, the sound attenuation performance is improved, the sound-absorbing cylinder 5 is made of polyester fiber sound-absorbing materials, the I-shaped sound-absorbing, have good sound absorption, can have good noise elimination performance, improve noise elimination performance, when the installation, in advancing enclosing cover 2 with barrel 1 card, drive fixture block 16 through spring 17 and bounce, can make fixture block 16 block fast in advancing clamping groove 18 of barrel 1, can fix barrel 1, be convenient for install fixed silencer whole, convenient to use, be convenient for stimulate pull pin 19 through pull head 20 and slide outward, can drive fixture block 16 outer slippage and leave clamping groove 18, can dismantle barrel 1 part change fast, when changing, only need pull down barrel 1 part, enclosing cover 2 still connects on the gas vent, be convenient for change the use, convenient to use.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a pneumatic silencer, includes barrel (1), enclosing cover (2), its characterized in that: the upper end surface of enclosing cover (2) is equipped with air inlet (3), the inner wall fixed surface of barrel (1) is connected with inhales sound drum (5), the lower fixed surface of barrel (1) even has sealed lid (4), barrel (1) and the surface of inhaling sound drum (5) are equipped with disappointing mouth (6), inhale the equal fixedly connected with worker's shape of the upper and lower side inner surface of sound drum (5) and inhale sound disc (7) and inhale sound disc (8), the center department inboard surface that worker's shape inhaled sound disc (7) is equipped with wide open mouth (9), the upper end surface that worker's shape inhaled sound disc (7) is equipped with first air guide macrostoma (10), the lower extreme surface that worker's shape inhaled sound disc (7) is equipped with first air guide osculum (11), first air guide macrostoma (10) and first air guide osculum (11) evenly distributed inhale the upper end and the lower extreme surface of sound disc (7, inhale the center department surface of sound plectane (8) and be equipped with second air guide osculum (12), the outer end surface of inhaling sound plectane (8) is equipped with second air guide macrostoma (13).

2. A pneumatic muffler according to claim 1, wherein: the second air guide small opening (12) and the second air guide large opening (13) are uniformly distributed on the surface of the sound-absorbing circular plate (8).

3. A pneumatic muffler according to claim 1, wherein: the upper end surface of the sealing cover (4) is fixedly connected with a round concave block (14), and the round concave block (14) is made of soft sponge materials.

4. A pneumatic muffler according to claim 1, wherein: the sound absorption cylinder (5) is made of polyester fiber sound absorption materials, and the I-shaped sound absorption circular plate (7) and the sound absorption circular plate (8) are made of polyester fiber sound absorption materials.

5. A pneumatic muffler according to claim 1, wherein: the inner end faces of the front side and the rear side of the outer cover (2) are connected with a clamping block (16) and a spring (17) in a sliding mode through sliding grooves (15).

6. A pneumatic muffler according to claim 5, wherein: the inner end surface of the spring (17) is pressed on the outer end surface of the fixture block (16).

7. A pneumatic muffler according to claim 6, wherein: the inner end surfaces of the clamping blocks (16) are connected to the inner side surfaces of the front side and the rear side of the upper end of the barrel body (1) in a sliding mode through clamping grooves (18).

8. A pneumatic muffler according to claim 6, wherein: the center of the outer surface of the clamping block (16) is fixedly connected with a pull pin (19), a spring (17) is sleeved on the outer surface of the pull pin (19), and the outer surface of the pull pin (19) is fixedly connected with a pull head (20).