阅读说明：本技术 一种铁道交通用复合式吸音板 (Combined type acoustic panel for railway traffic ) 是由 不公告发明人 于 2018-06-22 设计创作，主要内容包括：本发明提供一种铁道交通用复合式吸音板,涉及交通设备领域。该铁道交通用复合式吸音板,包括消音板,所述消音板的上下两侧均固定安装有过渡板,所述上侧过渡板的一侧固定安装有第一进音板,所述下侧过渡板的底部固定安装有第二进音板,所述第一进音板和第二进音板远离过渡板的一侧均固定安装有隔音板。该铁道交通用复合式吸音板,通过设置导音杆,能将噪音引导至阻音片,通过将阻音片设置成波浪状,使噪音和阻音片的接触面积增大,通过设置消音装置,能使大部分噪音吸收并消除,通过设置过渡板配合传音孔,使残余的噪音引导至消音板内,通过设置消音板,使残余的噪音完全吸收。(The invention provides a composite acoustic board for railway traffic, and relates to the field of traffic equipment. This combined type abatvoix for railway traffic, including the acoustical panel, the equal fixed mounting in upper and lower both sides of acoustical panel has the cab apron, one side fixed mounting that the cab apron was crossed to the upside has first acoustical panel of advancing, the bottom fixed mounting that the cab apron was crossed to the downside has the second to advance the acoustical panel, first acoustical panel and second advance the acoustical panel and keep away from the equal fixed mounting in one side of crossing the cab apron and have the acoustic celotex board. This combined type abatvoix for railway traffic leads the sound pole through the setting, can lead the noise to the sound blocking piece, through setting the sound blocking piece into the wavy, makes the area of contact increase of noise and sound blocking piece, through setting up silencing device, enables most noise absorption and eliminates, passes the cab apron cooperation through setting up and passes the sound hole, makes in remaining noise guide to the abatvoix, through setting up the abatvoix, makes remaining noise absorb completely.)

1. The utility model provides a combined type abatvoix for railway transportation, includes abatvoix (1), the equal fixed mounting in upper and lower both sides of abatvoix (1) has cab apron (2), its characterized in that: the acoustic board is characterized in that one end, far away from the acoustic board (1), of the transition plate (2) is provided with a first sound inlet plate (3) and a second sound inlet plate (4) respectively, one side, far away from the acoustic board (2), of the first sound inlet plate (3) and the second sound inlet plate (4) is fixedly provided with an acoustic board (5), the outer sides of the two acoustic boards (5) are fixedly provided with an upper top plate (6) and a lower top plate (7) respectively, the inside of the first sound inlet plate (3) is fixedly provided with a sound inlet pipe (12), a support plate (13) is fixedly arranged above the inside of the sound inlet pipe (12), the middle of the top of the support plate (13) is fixedly provided with a partition plate (14), the two sides of the partition plate (14) are fixedly provided with acoustic wool (15), the middle of the bottom of the support plate (13) is fixedly provided with a sound guide rod (16), and the two sides of the sound guide rod, the interior fixed mounting of second sound incoming plate (4) has silencing device (18), silencing device (18) are including hush pipe body (19), the top fixed mounting of hush pipe body (19) has sound inlet (20), the top of hush pipe body (19) inner chamber is provided with leads sound hole (21), the bottom of leading sound hole (21) is provided with abatvoix (22).

2. The composite acoustic panel for railway transportation according to claim 1, wherein: go up roof (6) and roof (7) down and all seted up draw-in groove (9) in both ends about, it has C type fossil fragments (8) to go up roof (6) and roof (7) down through draw-in groove (9) joint.

3. The composite acoustic panel for railway transportation according to claim 1, wherein: the sound attenuation panel is characterized in that a sound return pipe (10) is fixedly mounted inside the sound attenuation panel (1), the sound return pipe (10) is U-shaped, and the sound blocking pieces (17) are wavy.

4. The composite acoustic panel for railway transportation according to claim 1, wherein: the surface of the transition plate (2) is provided with sound transmission holes (11), the sound transmission holes (11) are through holes, and the sound transmission holes (11) are uniformly distributed on the surface of the transition plate (2).

5. The composite acoustic panel for railway transportation according to claim 1, wherein: the sound guide hole (21) is communicated with the sound inlet (20), and the sound guide hole (21) is vertically arranged at the top of the sound absorption plate (22).

6. The composite acoustic panel for railway transportation according to claim 1, wherein: the upper surface of the upper top plate (6) is provided with a semicircular lug (23) and a rectangular lug (24) respectively, and the semicircular lug (23) and the rectangular lug (24) are arranged adjacently in sequence.

Technical Field

The invention relates to the technical field of traffic equipment, in particular to a composite acoustic board for railway traffic.

Background

With the development and progress of science and technology, a plurality of novel material technologies suitable for urban rail transit appear, because the space available for buildings in cities is limited, in order to ensure the stability and smoothness of rail transit and reduce the maintenance of rail transit facilities, an integral track bed is generally adopted, but the noise reduction coefficient is only about 0.07, in the operation process of a train, the noise is mainly caused by noise of a tractor and power equipment, wheel track noise and pantograph noise, and in cities with dense population, the long-term existing noise seriously influences the life and work of residents nearby.

The noise between two rails on a track bed is relatively large, and a sound-absorbing material made of fibers such as glass wool is used in the past and is arranged on a sound-insulating wall near a road, so that the train can suffer from train wind pressure when a vehicle passes through the sound-absorbing material. Therefore, if a sound absorbing material using glass wool fibers as a sound insulating wall material is applied to a sound insulating wall for a rail on which a high-speed railway vehicle travels, the fibers may be scattered by repeated wind pressure due to deterioration caused by long-term use, and the service life is short, and the sound absorbing effect is poor.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a composite sound-absorbing board for railway traffic, which solves the problem of poor sound-absorbing effect caused by the fact that common sound-absorbing board materials are not suitable for railway traffic.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a composite sound-absorbing board for railway traffic comprises a sound-absorbing board, transition boards are fixedly mounted on the upper side and the lower side of the sound-absorbing board, a first sound inlet board and a second sound inlet board are respectively mounted at one ends, far away from the sound-absorbing board, of the transition boards, sound-absorbing boards are fixedly mounted on one sides, far away from the transition boards, of the first sound inlet board and one side, far away from the sound-absorbing board, of the second sound inlet board, sound-absorbing boards are respectively fixedly mounted on the outer sides of the two sound-absorbing boards, an upper top board and a lower top board are respectively fixedly mounted on the outer sides of the two sound-absorbing boards, a sound inlet pipe is fixedly mounted in the first sound inlet board, a support board is fixedly mounted above the sound inlet pipe, a partition board is fixedly mounted in the middle of the top of the support board, sound-absorbing cotton is fixedly mounted on the two sides of the partition board, a sound guide rod is fixedly, the top fixed mounting of amortization pipe body has into sound mouth, the top of amortization pipe body inner chamber is provided with leads the sound hole, the bottom of leading the sound hole is provided with the abatvoix.

Preferably, the clamping grooves are formed in the left end and the right end of the upper top plate and the lower top plate, and the C-shaped keels are clamped on the upper top plate and the lower top plate through the clamping grooves.

Preferably, the sound attenuation plate is fixedly provided with a sound return pipe inside, the sound return pipe is U-shaped, and the sound blocking pieces are wavy.

Preferably, the surface of the transition plate is provided with sound transmission holes, the sound transmission holes are through holes, and the sound transmission holes are uniformly distributed on the surface of the transition plate.

Preferably, the sound guide hole is communicated with the sound inlet, and the sound guide hole is vertically arranged at the top of the sound absorption plate.

Preferably, the upper surface of the upper top plate is provided with a semicircular lug and a rectangular lug respectively, and the semicircular lug and the rectangular lug are arranged adjacently in sequence.

(III) advantageous effects

The invention provides a composite acoustic board for railway traffic. The method has the following beneficial effects:

1. this combined type abatvoix for railway traffic, this compound abatvoix through setting up C type fossil fragments cooperation draw-in groove, makes compound multiply wood firmly fixed, through setting up semicircle lug and rectangle lug, makes compound abatvoix antiskid in transport and use, through setting up roof and roof down, plays the protection and inhales the inside structure of sound composite sheet, through setting up the acoustic celotex board, filters partial frequency's sound, through setting up into the sound pipe, enables most noise absorption and eliminates.

2. This combined type abatvoix for railway traffic leads the sound pole through the setting, can lead the noise to the sound blocking piece, through setting the sound blocking piece into the wavy, makes the area of contact increase of noise and sound blocking piece, through setting up silencing device, enables most noise absorption and eliminates, passes the cab apron cooperation through setting up and passes the sound hole, makes in remaining noise guide to the abatvoix, through setting up the abatvoix, makes remaining noise absorb completely.

Drawings

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

FIG. 2 is a cross-sectional view of the sound inlet tube of the present invention;

FIG. 3 is a cross-sectional view of the acoustical panel of the present invention;

fig. 4 is a cross-sectional view of a silencer device of the present invention.

In the figure: the sound absorption plate comprises a sound absorption plate 1, a transition plate 2, a first sound inlet plate 3, a second sound inlet plate 4, a sound insulation plate 5, an upper top plate 6, a lower top plate 7, a 8C-shaped keel, a clamping groove 9, a sound returning pipe 10, a sound transmission hole 11, a sound inlet pipe 12, a support plate 13, a partition plate 14, sound absorption cotton 15, a sound guide rod 16, a sound blocking sheet 17, a sound damping device 18, a sound damping pipe body 19, a sound inlet 20, a sound guide hole 21, a sound absorption plate 22, a semicircular lug 23 and a rectangular lug 24.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides a composite sound-absorbing board, as shown in fig. 1-4, comprising a sound-absorbing board 1, wherein the sound-absorbing board 1 is arranged to completely absorb residual noise, a sound returning pipe 10 is fixedly arranged in the sound-absorbing board 1, the sound returning pipe 10 is in a U shape, the noise is rubbed on the U-shaped sound returning pipe 10 and is converted into heat energy by sound energy, transition plates 2 are fixedly arranged on the upper side and the lower side of the sound-absorbing board 1, sound transmission holes 11 are arranged on the surface of the transition plates 2, the residual noise is guided into the sound-absorbing board 1 by arranging the transition plates 2 in a matching way with the sound transmission holes 11, the sound transmission holes 11 are through holes, the sound transmission holes 11 are uniformly distributed on the surface of the transition plates 2, a first sound-entering board 3 and a second sound-absorbing board 4 are respectively arranged at one end of the transition plates 2 far away from the sound-absorbing board 1, sound-absorbing boards 5 are fixedly arranged on one sides of the first sound-entering board 3 and the, the sound of partial frequency is filtered, the outer sides of two sound insulation boards 5 are respectively fixedly provided with an upper top board 6 and a lower top board 7, the structure for protecting the interior of the sound-absorbing composite board is achieved by arranging the upper top board 6 and the lower top board 7, the upper surface of the upper top board 6 is respectively provided with a semicircular lug 23 and a rectangular lug 24, the semicircular lug 23 and the rectangular lug 24 are sequentially arranged adjacently, the composite sound-absorbing board is prevented from slipping in carrying and using by arranging the semicircular lug 23 and the rectangular lug 24, the left end and the right end of the upper top board 6 and the lower top board 7 are respectively provided with a clamping groove 9, the upper top board 6 and the lower top board 7 are clamped with a C-shaped keel 8 through the clamping groove 9, the composite sound board is firmly fixed by arranging the C-shaped keel 8 to be matched with the clamping groove 9, the sound inlet pipe 12 is fixedly arranged in the first sound inlet pipe 3, most of noise can be absorbed and eliminated by arranging the sound inlet, a baffle plate 14 is fixedly arranged in the middle of the top of the supporting plate 13, silencing cotton 15 is fixedly arranged on both sides of the baffle plate 14, a sound guide rod 16 is fixedly arranged in the middle of the bottom of the supporting plate 13, the sound guide rod 16 is arranged to guide the noise to the sound blocking sheets 17, the sound blocking sheets 17 are fixedly arranged on the two sides of the sound guide rod 16, the sound blocking sheets 17 are wavy, by arranging the sound-blocking pieces 17 in a wavy shape, the contact area of noise and the sound-blocking pieces 17 is increased, the muffler device 18 is fixedly mounted inside the second sound-entering plate 4, through setting up silencing device 18, enable most noise absorption and eliminate, silencing device 18 includes silencing tube body 19, and silencing tube body 19's top fixed mounting has into sound mouth 20, and the top of silencing tube body 19 inner chamber is provided with leads sound hole 21, and the bottom of leading sound hole 21 is provided with abatvoix 22, leads sound hole 21 and advances sound mouth 20 intercommunication, leads sound hole 21 and sets up perpendicularly at abatvoix 22 top.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

In conclusion, this combined type abatvoix for railway traffic through setting up C type fossil fragments 8 cooperation draw-in groove 9, makes compound multiply wood firmly fixed, through setting up semicircle lug 23 and rectangle lug 24, makes compound abatvoix antiskid in transport and use, through setting up roof 6 and roof 7 down, plays the inside structure of protection sound composite board of inhaling, through setting up acoustic celotex board 5, filters partial frequency's sound, through setting up into sound pipe 12, enables most noise absorption and eliminates.

In addition, the composite sound absorbing board for railway transportation can guide noise to the sound blocking sheet 17 by arranging the sound guide rod 16, can increase the contact area between the noise and the sound blocking sheet 17 by arranging the sound blocking sheet 17 in a wavy shape, can absorb and eliminate most of the noise by arranging the silencing device 18, can guide the residual noise into the sound absorbing board 1 by arranging the transition plate 2 and matching the sound transmission hole 11, and can completely absorb the residual noise by arranging the sound absorbing board 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.