阅读说明：本技术 一种片式消声器 (Sheet type silencer ) 是由 许伟清 文永辉 冯颖 秦建伟 于 2019-10-11 设计创作，主要内容包括：本发明公开了一种片式消声器,包括片式消声器本体与设置在片式消声器本体上的外壳与吸音片,所述外壳的两端均设置有过滤网,且过滤网的边缘处固定有边框,所述吸音片两侧外表面均开设有键槽,所述吸音片的四个拐角处均设置有定位机构,且吸音片的一端外表面中部设置有把手机构,所述定位机构包括固定片与限位件,所述固定片上设置有第一螺栓,所述限位件上开设有限位槽,所述把手机构包括把手杆与连接件,所述连接件上开设有连接槽,且连接件上设置有第二螺栓,所述外壳相对立的两个内侧壁面上均固定有若干定位键。本发明结构简单,方便了吸音片的拆装更换,且更换效率高,同时延长了消声器的使用寿命,实用性强。(The invention discloses a sheet type silencer, which comprises a sheet type silencer body, a shell and a sound absorbing sheet, wherein the shell and the sound absorbing sheet are arranged on the sheet type silencer body, filter screens are arranged at two ends of the shell, a frame is fixed at the edge of each filter screen, key grooves are formed in the outer surfaces of two sides of the sound absorbing sheet, positioning mechanisms are arranged at four corners of the sound absorbing sheet, a handle mechanism is arranged in the middle of the outer surface of one end of the sound absorbing sheet, each positioning mechanism comprises a fixing sheet and a limiting piece, a first bolt is arranged on each fixing sheet, a limiting groove is formed in each limiting piece, each handle mechanism comprises a handle rod and a connecting piece, a connecting groove is formed in each connecting piece, a second bolt is arranged on each connecting piece, and a plurality of positioning keys are fixed on two opposite. The silencer is simple in structure, convenient to disassemble, assemble and replace, high in replacement efficiency, capable of prolonging the service life of the silencer and high in practicability.)

1. A chip muffler comprises a chip muffler body (1), a shell (2) arranged on the chip muffler body (1) and a sound absorption piece (3), and is characterized in that filter screens (4) are arranged at two ends of the shell (2), a frame (5) is fixed at the edge of each filter screen (4), key grooves (6) are formed in the outer surfaces of two sides of the sound absorption piece (3), positioning mechanisms (7) are arranged at four corners of the sound absorption piece (3), a handle mechanism (8) is arranged in the middle of the outer surface of one end of the sound absorption piece (3), each positioning mechanism (7) comprises a fixed piece (9) and a limiting piece (10), a first bolt (11) is arranged on each fixed piece (9), a limiting groove (12) is formed in each limiting piece (10), each handle mechanism (8) comprises a handle rod (13) and a connecting piece (14), connecting groove (15) has been seted up on connecting piece (14), and is provided with second bolt (16) on connecting piece (14), all be fixed with a plurality of navigation keys (17) on two interior wall surfaces that shell (2) are mutually opposite, and four first through-holes (18) have all been seted up at the both ends of shell (2), second through-hole (19) have been seted up on frame (5), the one end opening part of second through-hole (19) is fixed with two flexure strips (20), and the one end of flexure strip (20) is fixed with screens piece (21), two be provided with between flexure strip (20) extrusion post (22), the one end fixedly connected with dog (23) of extrusion post (22), and recess (24) are seted up to the side of dog (23).

2. The plate muffler as claimed in claim 1, wherein the fixing plate (9), the limiting member (10), the handle bar (13) and the connecting member (14) are made of plastic, the fixing plate (9) is fixedly connected with the limiting member (10), and the handle bar (13) is fixedly connected with the connecting member (14).

3. A chip muffler according to claim 1, wherein the fixing piece (9) is fixedly mounted to the inner surface of the housing (2) by a first bolt (11), and the connecting piece (14) is fixedly mounted to the sound-absorbing piece (3) by a second bolt (16).

4. A chip muffler according to claim 1, characterized in that the outer surface of the handle bar (13) is provided with slip-resistant strips.

5. A plate muffler according to claim 1, wherein the stopper (23) is of a disc-shaped configuration, and the stopper (23) has a cross-sectional diameter larger than the diameter of the first through-hole (18), and the diameter of the first through-hole (18) is larger than the diameter of the second through-hole (19).

6. A plate muffler as claimed in claim 1, wherein the extruded post (22) is a rectangular post and the key slot (6) and locating key (17) are in mating arrangement.

Technical Field

The invention relates to the technical field of silencers, in particular to a chip silencer.

Background

The silencer, as the name implies, be exactly the structure for noise reduction, the kind of silencer is loaded down with trivial details, and the structure of piece formula silencer is exactly a plurality of abatvoix of installation in the frame to reach noise reduction's purpose.

Piece formula silencer among the prior art is generally the inside that will inhale the sound piece and adopt bolt or other structure fixed mounting to the shell directly, the dismouting process of this kind of mounting means is loaded down with trivial details complicated, when its inside sound piece that inhales need to be changed, a large amount of time will be wasted in its dismouting, thereby influence actual work efficiency, secondly, because be provided with a plurality of sound holes of inhaling on the sound piece, consequently, just easily pollutant such as adhesion dust or floe on the sound piece, then influence the sound absorption effect of sound piece, simultaneously, inside insect etc. also can enter into the shell, and body fluid such as insect etc. can corrode whole silencer, its life has been reduced, therefore, we propose a piece formula silencer.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a sheet type silencer.

In order to achieve the purpose, the invention adopts the following technical scheme:

a sheet type silencer comprises a sheet type silencer body, a shell and a sound absorption sheet, wherein the shell and the sound absorption sheet are arranged on the sheet type silencer body, filter screens are arranged at two ends of the shell, a frame is fixed at the edge of each filter screen, key grooves are formed in the outer surfaces of two sides of the sound absorption sheet, positioning mechanisms are arranged at four corners of the sound absorption sheet, a handle mechanism is arranged in the middle of the outer surface of one end of the sound absorption sheet, each positioning mechanism comprises a fixing sheet and a limiting piece, a first bolt is arranged on each fixing sheet, a limiting groove is formed in each limiting piece, each handle mechanism comprises a handle rod and a connecting piece, a connecting groove is formed in each connecting piece, a second bolt is arranged on each connecting piece, a plurality of positioning keys are fixed on two opposite inner side wall surfaces of the shell, four first through holes are formed in two ends of the shell, two elastic pieces are fixed at an opening at one end of the second through hole, a clamping block is fixed at one end of each elastic piece, an extrusion column is arranged between the two elastic pieces, a check block is fixedly connected to one end of the extrusion column, and a groove is formed in the side face of the check block.

Preferably, stationary blade, locating part, handle pole and connecting piece are the plastics material and make, stationary blade and locating part fixed connection, handle pole and connecting piece fixed connection.

Preferably, the fixing piece is fixedly installed on the inner surface of the casing by a first bolt, and the connecting piece is fixedly installed on the sound absorbing piece by a second bolt.

Preferably, the outer surface of the handle bar is provided with a plurality of anti-slip strips.

Preferably, the stop block is of a disc-shaped structure, the diameter of the cross section of the stop block is larger than the aperture of the first through hole, and the aperture of the first through hole is larger than the aperture of the second through hole.

Preferably, the extrusion column is a rectangular column, and the key groove and the positioning key are arranged in a matched manner.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, by arranging the key groove, the fixing piece, the limiting piece, the first bolt, the limiting groove, the handle rod, the connecting piece, the connecting groove, the second bolt and the positioning key, and utilizing the matching of the four positioning mechanisms and the key groove and the positioning key, the positioning and fixing of each sound absorption piece are realized, so that the traditional installation mode that the sound absorption piece is directly fixed to the shell is changed, the sound absorption piece is convenient to disassemble, assemble and replace, and the working efficiency is high.

2. According to the silencer, the filter screen, the frame, the first through hole, the second through hole, the elastic sheet, the clamping block, the extrusion column, the stop block and the groove are arranged, and the filter screen can prevent large-particle dust or floccules from entering the shell and prevent insects and the like from entering the shell, so that the service life of the silencer is prolonged.

In conclusion, the sound absorption piece is convenient to disassemble, assemble and replace, the replacement efficiency is high, the service life of the silencer is prolonged, and the practicability is high.

Drawings

Fig. 1 is a schematic view of the overall structure of a plate muffler according to the present invention;

FIG. 2 is a structural diagram of a positioning mechanism of a chip muffler according to the present invention;

FIG. 3 is a structural view of a handle mechanism of a chip muffler according to the present invention;

FIG. 4 is a side view of the outer shell of a panel muffler in accordance with the present invention;

fig. 5 is an enlarged sectional view of a portion a in fig. 1 of a chip muffler according to the present invention.

In the figure: 1 piece formula silencer body, 2 shells, 3 sound absorbing sheet, 4 filter screens, 5 frames, 6 keyways, 7 positioning mechanism, 8 handle mechanism, 9 stationary blade, 10 locating part, 11 first bolts, 12 spacing grooves, 13 handle pole, 14 connecting pieces, 15 spread grooves, 16 second bolts, 17 navigation key, 18 first through-hole, 19 second through-hole, 20 flexure strip, 21 screens piece, 22 extrusion post, 23 dog, 24 recesses.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a sheet muffler comprises a sheet muffler body 1, a housing 2 and a sound absorbing sheet 3 disposed on the sheet muffler body 1, wherein both ends of the housing 2 are provided with filter screens 4, a frame 5 is fixed at the edge of the filter screen 4, key slots 6 are disposed on the outer surfaces of both sides of the sound absorbing sheet 3, positioning mechanisms 7 are disposed at four corners of the sound absorbing sheet 3, a handle mechanism 8 is disposed at the middle of the outer surface of one end of the sound absorbing sheet 3, the positioning mechanism 7 comprises a fixing sheet 9 and a limiting member 10, a first bolt 11 is disposed on the fixing sheet 9, a limiting slot 12 is disposed on the limiting member 10, the handle mechanism 8 comprises a handle bar 13 and a connecting member 14, a connecting slot 15 is disposed on the connecting member 14, a second bolt 16 is disposed on the connecting member 14, a plurality of positioning keys 17 are fixed on both inner side wall surfaces of the housing 2 opposite to each other, and, the frame 5 is provided with a second through hole 19, two elastic pieces 20 are fixed at an opening at one end of the second through hole 19, a clamping block 21 is fixed at one end of each elastic piece 20, an extrusion column 22 is arranged between the two elastic pieces 20, a stop block 23 is fixedly connected at one end of the extrusion column 22, and a groove 24 is formed in the side surface of the stop block 23.

Stationary blade 9, locating part 10, handle pole 13 and connecting piece 14 are the plastics material and make, stationary blade 9 and locating part 10 fixed connection, handle pole 13 and connecting piece 14 fixed connection, stationary blade 9 is through the internal surface of first bolt 11 fixed mounting at shell 2, connecting piece 14 is through 16 fixed mounting of second bolt on sound absorption piece 3, the surface of handle pole 13 is provided with a plurality of antislip strips, dog 23 is disc structure, and the cross section diameter of dog 23 is greater than the aperture of first through-hole 18, the aperture of first through-hole 18 is greater than the aperture of second through-hole 19, the compression leg 22 is the rectangle post, keyway 6 and navigation key 17 are the phase-match setting.

The working principle is as follows: in the using process of the sheet type silencer body 1, after sound waves enter the shell 2, the sound absorption sheets 3 absorb the noise, so that the purpose of reducing the noise is achieved, the filter screen 4 can protect the inner space of the shell 2, and on one hand, dead objects such as dust or floccules can be prevented from entering the shell 2, so that the using effect of the sound absorption sheets 3 is ensured; on the other hand, can effectually prevent that insect etc. from entering into the inside of shell 2 to the condition of the body fluid corruption piece formula silencer body 1 of insect etc. takes place, thereby has prolonged the life of piece formula silencer body 1 on the whole, along with the time lapse, inhales the sound effect of sound piece 3 and can reduce gradually, after it reduces to certain degree, just needs to change it, and specific change step is as follows: the groove 24 is utilized to fasten the stop block 23, outward pulling force is exerted on the stop block 23, when the pulling force is larger than the friction force between the extrusion column 22 and the elastic sheets 20, the extrusion column 22 is pulled out from between the two elastic sheets 20, then the two clamping blocks 21 are pushed towards the middle until the clamping blocks 21 are separated from the shell 2, then the frame 5 is pulled outwards, the filter screen 4 is taken down, after the completion, the first bolt 11 is screwed by a screwdriver, the fixing sheet 9 and the limiting member 10 are taken down, then the handle rod 13 is tightly held and outward pulling force is exerted until the sound absorption sheet 3 needing to be replaced is pulled out, the key groove 6 is matched with the positioning key 17 to limit the position of the sound absorption sheet 3, the sound absorption sheet 3 is prevented from approaching together, the limiting groove 12 is matched with the shapes of the outer surfaces of the two ends of the sound absorption sheet 3, the sound absorption sheet 3 is further limited, the second bolt 16 is used for installing the connecting piece 14, the silencer is simple in structure, convenient to disassemble, assemble and replace, high in replacement efficiency, capable of prolonging the service life of the silencer and high in practicability.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.