CN216142879U

CN216142879U - Silencer capable of adjusting noise

Info

Publication number: CN216142879U
Application number: CN202121108475.4U
Authority: CN
Inventors: 孙邦国; 陈华成; 李永利; 朱冬冬
Original assignee: Zhejiang Shengpa Electromechanical Co ltd
Current assignee: Zhejiang Shengpa Electromechanical Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-03-29
Anticipated expiration: 2031-05-24

Abstract

The utility model discloses a silencer capable of adjusting the noise, which comprises a silencer main body and an air inlet quantity control mechanism arranged in the silencer main body; cylinder cover air suction ports are symmetrically arranged on one side of two ends of the silencer main body, and the silencer air suction ports are arranged on one side of the silencer main body; the muffler air suction port extends inwards to the other side in the muffler main body and is diffused towards the cylinder cover air suction port, and the muffler air suction port is connected with the cylinder cover air suction ports symmetrically arranged at two ends of the muffler main body; the silencer air suction port extending part is provided with a silencing sponge, and the air inlet amount control mechanism is arranged on the silencer air suction port extending part on one side of the silencing sponge. The utility model can be used for freely selecting between air charging and silencing effects, influences the silencing effect and the air charging speed by controlling the inflow size of air, and manually selects the required use scene gear.

Description

Silencer capable of adjusting noise

Technical Field

The utility model relates to the field of air compressors, in particular to a silencer capable of adjusting the noise.

Background

The oil-free air compressor is called as oil-free air compressor, is the main body of air source device, it is the device which converts the mechanical energy of prime power (usually motor) into gas pressure energy, it is the air pressure generating device of compressed air, the structural design of single shaft double cylinder makes the compressor gas flow rate be twice of single cylinder at the rated speed.

The prior art has the main defects that the cost is high, the size of the mechanism is changed along with the flow limiting structure, the attractiveness of a product is influenced, and the existing air compressor silencer has a good silencing effect and is slow in air feeding speed; the silencing effect is not good when the air is fast inflated.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a silencer capable of adjusting the noise, which can freely select between air feeding and silencing effects, influences the silencing effect and the air feeding speed by controlling the size of an air inflow section, and manually selects a required use scene gear.

The silencer capable of adjusting the noise size is realized by the following technical scheme: comprises a silencer main body and an air inlet quantity control mechanism arranged in the silencer main body;

one side of the two ends of the silencer main body is symmetrically provided with cylinder cover air suction ports, and one side of the silencer main body is provided with a silencer air suction port; the silencer air suction port extends inwards to the other side in the silencer main body and is diffused towards the cylinder cover air suction port, and the silencer air suction port is connected with the cylinder cover air suction ports symmetrically arranged at two ends of the silencer main body; the extension part of the air suction port of the silencer is provided with a silencing sponge, and the air intake control mechanism is arranged on the extension part of the air suction port of the silencer on one side of the silencing sponge.

As a preferred technical scheme, the air intake control mechanism comprises a knob switch and a baffle plate; the rotary switch is arranged above the silencer main body, a hinged part is arranged on an extending part of a silencer air suction port, the center of the baffle is hinged on the hinged part at one side which is deviated, and the baffle is connected with the rotary switch.

As the preferred technical scheme, a plurality of stoppers are arranged in the extending part of the silencer air suction port, and the stoppers are arranged at the extending part of the silencer air suction port.

The utility model has the beneficial effects that: the utility model can freely select between aeration and silencing effects, influences the silencing effect and aeration speed by controlling the size of the inflow section of air, and manually selects the required use scene gear.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 the drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is a schematic view of the intake air control mechanism installation of the present invention;

fig. 5 is a schematic diagram of noise cross-section adjustment of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 5, the silencer of the present invention includes a silencer body 1 and an intake air amount control mechanism 2 installed inside the silencer body 1;

one side of two ends of the silencer main body 1 is symmetrically provided with a cylinder cover air suction port 3, and one side of the silencer main body 1 is provided with a silencer air suction port 4; the muffler air suction port 4 extends inwards to the other side in the muffler main body 1 and diverges towards the cylinder cover air suction port 3, and the muffler air suction port 4 is connected with the cylinder cover air suction ports 3 symmetrically arranged at two ends of the muffler main body 1; a silencing sponge 9 is arranged on the extension part of the silencer air suction port 4, and the air intake control mechanism 2 is arranged on the extension part of the silencer air suction port 4 on one side of the silencing sponge 9.

In the present embodiment, the intake air amount control mechanism 2 includes a rotary switch 5 and a baffle 6; the rotary switch 5 is arranged above the silencer main body 1, a hinged part 8 is arranged on an extending part of the silencer air suction port 4, the center of the baffle 6 is hinged on the hinged part 8 at a position deviated to one side, and the baffle 6 is connected with the rotary switch 5; the air intake quantity control mechanism 2 can be replaced by other mechanisms for adjusting the cross section.

In this embodiment, a plurality of stoppers 7 are disposed in the extension portion of the muffler air suction port 4, and the stoppers 7 are disposed at the extension portion of the muffler air suction port 4.

In this embodiment, one side of the baffle 7 and one side of the extension part of the muffler air suction port 4 are taken as a gap a, the other side of the baffle 7 and the other side of the extension part of the muffler air suction port 4 are taken as a gap B, the diameter of the muffler air suction port 4 is taken as the air inlet section length, and the height of the baffle is taken as h; the formula of the ratio of the silencing effect is as follows:

air cross-sectional area = (gap a + gap B) · h;

the noise reduction effect ratio value = (gap a + gap B) · h/intake section length · h;

the closer the noise reduction effect ratio is to 0, the better the noise reduction effect is, and the slower the air feeding speed is;

the noise reduction effect ratio is closer to 1, the noise reduction effect is not good, and the air feeding speed is fastest.

The working principle is as follows:

the noise is generated by high-frequency impact of a valve plate in the cylinder cover, and is transmitted to human ears through a noise transmission route from a cylinder cover air suction port, a noise reduction sponge and a silencer air suction port; the air suction route passes through an air suction port of the silencer, filters sundries through the silencing sponge and transmits the filtered sundries to an air suction port of a cylinder cover; under the same condition, by controlling the air inlet silencing ratio, the closer to 0 the ratio is, the better the silencing effect is, the slower the air inlet is; the closer the ratio is to 1, the noise reduction effect is determined by the length of the noise passing through the noise reduction sponge; a mechanism for controlling the noise section is additionally arranged in the silencer and is divided into a plurality of gears, and the silencing function is optimized by controlling the size of the section of the air suction channel.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A silencer capable of adjusting the noise size is characterized in that: comprises a silencer main body (1) and an air inlet control mechanism (2) arranged in the silencer main body (1);

one side of two ends of the silencer main body (1) is symmetrically provided with a cylinder cover air suction port (3), and one side of the silencer main body (1) is provided with a silencer air suction port (4); the muffler air suction port (4) extends inwards to the other side in the muffler main body (1) and diverges towards the cylinder cover air suction port (3), and the muffler air suction port (4) is connected with the cylinder cover air suction ports (3) symmetrically arranged at two ends of the muffler main body (1); a silencing sponge (9) is arranged on the extending part of the silencer air suction port (4), and the air intake control mechanism (2) is arranged on the extending part of the silencer air suction port (4) on one side of the silencing sponge (9).

2. The adjustable noise level muffler of claim 1, wherein: the air intake control mechanism (2) comprises a knob switch (5) and a baffle (6); the rotary switch (5) is arranged above the silencer main body (1), a hinged part (8) is arranged on an extending part of the silencer air suction port (4), the center of the baffle (6) is hinged to the hinged part (8) at one side deviated from, and the baffle (6) is connected with the rotary switch (5).

3. The adjustable noise level muffler of claim 1, wherein: a plurality of check blocks (7) are arranged in the extending part of the silencer air suction port (4), and the check blocks (7) are arranged at the extending part of the silencer air suction port (4).