CN205636536U - Railroad platform is with interfering noise elimination component and device - Google Patents
Railroad platform is with interfering noise elimination component and device Download PDFInfo
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- CN205636536U CN205636536U CN201620384063.6U CN201620384063U CN205636536U CN 205636536 U CN205636536 U CN 205636536U CN 201620384063 U CN201620384063 U CN 201620384063U CN 205636536 U CN205636536 U CN 205636536U
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- dividing plate
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- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model relates to a railroad platform is with interfering noise elimination component and device belongs to noise elimination denoising technique field. This railroad platform is with interfering the noise elimination component to include base plate, baffle, baffle and slot, and the base plate divide into the region that sets up the regional of baffle and do not set up the baffle, the vertical region that sets up the baffle at the base plate that sets up of baffle, baffle around side at the base plate and bottom edge, baffle and baffle setting the base plate openly, two sides and the bottom constitution of base plate are trapezoidal, the slot and baffle and baffle phase -match, set up the back at the base plate. Constitute the railroad platform with interfering noise eliminator by apron and at least one foretell railroad platform with interfering the noise elimination component. The utility model discloses a noise elimination component and device simple structure, size is interfered and construction environmental conditioning can be followed, installation back elegant appearance, the weatherability is good, and the baffle of a plurality of different length makes its working frequency band who has the broad to the centering low -frequency noise also has fine the noise reduction effect.
Description
Technical field
This utility model relates to a kind of interference noise elimination component and device, particularly to a kind of railroad platform with interfering noise elimination component and device, belongs to noise elimination noise reduction technical field.
Background technology
Effectively reduce one of railroad platform influence of noise precondition being by railway station land used comprehensive development and utilization.In railroad platform region, wheel-rail noise is one of topmost noise source.At present, there is no the Railways Stations district noise reduction technology scheme of maturation both at home and abroad, common sound-absorbing material mainly absorbs high-frequency noises, therefore needs Middle and low frequency noise to design new noise reduction schemes.
The result of study of sound barrier diffraction sound is shown, sound barrier top " if soft-sided circle ", diffraction sound will be greatly lowered (Rawlills, AD Diffraction of Sound by a Rigid Screen with a Soft Perfectly Absorbing Edge 1976).It is born respectively waterwheel shape top denoiser (T.Okubo according to this principle；K.Fujiwara Efficiency of a noise barrier on the ground with an acoustically soft cylindrical edge [foreign language periodicals] 1998 (05)) and there is T-shaped top denoiser (the Kyoji Fujiwara of different depth recess；David C.Hothersall；Chul-hwan Kim.Noise barriers with reactive surfaces [foreign language periodicals]).This class top denoiser all utilizes the principle of sound wave interference, and a part of sound wave enters in denoiser groove and reflects at bottom portion of groove, forms the purpose that the interference wave contrary with primary sound wave phase reaches to eliminate the noise.Owing to denoiser is mounted on sound barrier top, for guaranteeing sound barrier and traffic safety, common interference noise reducing device size is little and structure is single, and working frequency range is narrow.
At home and abroad there is no interference-type structure and be applied to the noise elimination noise reduction of railroad platform, under railroad platform, space is relatively big, is adapted to fit larger-size interference-type denoiser, and big construction space is also beneficial to design wide band sound absorption structure, relative to other noise reduction measures, it is particularly conducive to reduce low-frequency noise.
Utility model content
The purpose of this utility model is to solve the noise problem of railroad platform, it is provided that a kind of noise elimination component utilizing principle of interference to reduce train wheel-rail noise, particularly reduces Middle and low frequency noise.
The purpose of this utility model is completed by following technology:
A kind of railroad platform is with interfering noise elimination component, including substrate, baffle plate, dividing plate and slot etc., described substrate is divided into the region arranging dividing plate and the region being not provided with dividing plate, described dividing plate is disposed longitudinally on substrate and arranges the region of dividing plate, described baffle plate is centered around side and the bottom edge of substrate, and described dividing plate and baffle plate are arranged at substrate front side, and two sides of described substrate and bottom constitute inverted trapezoidal, described slot matches with described dividing plate and baffle plate, is arranged on the back side of substrate.
Preferably, described substrate is provided with at least one piece of longitudinal baffle, and the length of described longitudinal baffle is shorter than the side board of substrate side, and the length of every dividing plate all differs.
Preferably, described substrate is provided with 2-6 longitudinal baffle along sonic propagation direction, the length of longitudinal baffle is successively decreased successively, the most identical, the opening part of substrate front end (or upper end) has the part of dividing plate to be referred to as entering tone mouth, the part of non-inductive windings is referred to as outlet sound mouth, and entering tone mouth is divided into several entering tone passages by dividing plate.
Preferably, the passage formed between described longitudinal baffle and between longitudinal baffle and baffle plate is horn-like.
Preferably, described longitudinal baffle is 4.
Preferably, described longitudinal baffle can be rectangle or irregularly shaped, such as bending, arc-shaped.
Preferably, the height of described baffle plate is identical with divider height.Baffle plate purpose is to reflect the sound wave inciding in component, is trapped among substrate edges in inverted trapezoidal.
Preferably, the region that described substrate is not provided with dividing plate is provided with openwork part.
Preferably, front end or the upper end of described substrate can be circular arc or elliptic arc, it is also possible to is shaped as sector, almost fan or trapezoidal for straight line, i.e. substrate.
Preferably, the front end of described substrate is two circular arcs intersected, and a circular arc correspond to entering tone mouth, and another circular arc correspond to outlet sound mouth.
Preferably, described substrate, dividing plate, baffle plate and slot use the metal of material of the same race or plastics to cast or thermoplastic shaping, form integral structure.
Preferably, the front of described substrate is it can also be provided that slot, and the most described dividing plate and baffle plate are separately machined.Described dividing plate is the rectangular slab of different length, and described baffle plate is the plate being passed through the inverted trapezoidal being bent to form by an entire plate (rectangle).It is connected by slot between described dividing plate with described substrate and between described baffle plate with described substrate.I.e. dividing plate and baffle plate is processed respectively, and substrate is integrally machined with its positive and negative slot, each part of plug-in mounting the most successively during site operation.
A kind of railroad platform is with interfering silencing apparatus, including cover plate and at least one above-mentioned interference noise elimination component.
Preferably, the shape of described cover plate is identical with substrate, is arranged at the top of longitudinal baffle and baffle plate.The back side of described cover plate is provided with the slot matched with described longitudinal baffle and baffle plate, and described cover plate is connected with longitudinal baffle and baffle plate by slot.
Preferably, the back side of described substrate is provided with the slot matched with described longitudinal baffle and baffle plate, and the longitudinal baffle of a noise elimination component substrate front side and baffle plate may be inserted into the slot of another noise elimination component substrate back.Demand according to site of deployment height, can be connected in series by multiple this utility model interference noise elimination component, from the bottom up, the baffle plate of first substrate is connected by back slot and second substrate of second substrate with longitudinal baffle, the like, uppermost substrate be arranged over cover plate.By multiple interference noise elimination component phase insert groups successively of the present utility model are synthesized certain altitude, it is installed under railroad platform.
Operation principle of the present utility model is:
This utility model make use of interferes the principle eliminated the noise, it is diffraction to occur after a part of sound wave enters component at the longitudinal baffle of different length or reflects at baffle plate, make its sound wave outer with component inversely add counteracting by increasing the sound path of incident acoustic wave, reach the purpose of noise reduction sound-deadening.This utility model devises the longitudinal baffle of several different lengths at entering tone mouth, can interfere, with broadening, the frequency range eliminated the noise.
The utility model has the advantages that:
This utility model simple in construction, it is easy to process and install, size can regulate with construction environment, and after construction, structure is attractive in appearance, good weatherability.This utility model has wider bandwidth of operation, also has good noise reduction to Middle and low frequency noise.
Below by the drawings and specific embodiments, this utility model is described further, but is not meant to the restriction to this utility model protection domain.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram that noise elimination component interfered by this utility model embodiment 1 railroad platform.
Fig. 2 is the structure schematic diagram that noise elimination component interfered by this utility model embodiment 1 railroad platform.
Fig. 3 is the package assembly schematic diagram that noise elimination component interfered by this utility model embodiment 1 railroad platform.
Fig. 4 is the structure schematic diagram of the cover plate that this utility model embodiment 1 railroad platform interferes noise elimination component to be used when assembling.
Fig. 5-1 and Fig. 5-2 interferes the structural representation of difformity substrate in noise elimination component for this utility model railroad platform.
Fig. 6 is the schematic top plan view that this utility model railroad platform interferes noise elimination component and rail relation.
Main Reference Numerals illustrates:
1 substrate 2 longitudinal baffle
3 baffle plate 4 slots
5 substrate hollow parts
Detailed description of the invention
Embodiment 1
As shown in Figure 1, the Facad structure schematic diagram of noise elimination component is interfered for the present embodiment railroad platform, this railroad platform is with interfering noise elimination component, constituting trapezium structure including substrate 1, longitudinal baffle 2, baffle plate 3 and slot 4, two sides of substrate 1 and bottom, the front end of substrate 1 i.e. upper end is two circular arcs intersected, one circular arc correspond to entering tone mouth, another circular arc correspond to outlet sound mouth, and the lower end connected with two circular arcs is inverted trapezoidal, the sector being shaped as approximation of substrate 1.Longitudinal baffle 2 and baffle plate 3 are arranged on substrate 1 front, and baffle plate 3 is centered around side and the bottom edge of substrate 1, and substrate 1 includes arranging the region of longitudinal baffle 2 and being not provided with the region of longitudinal baffle 2.
The opening part of substrate 1 front end or upper end is divided into entering tone mouth and outlet sound mouth according to sonic propagation direction, the side with longitudinal baffle 2 is entering tone mouth, side without longitudinal baffle is outlet sound mouth, the longitudinal baffle 2 of 4 pieces of different lengths it is provided with near the front entering tone mouth of substrate 1, the length of the longest longitudinal baffle 2 is shorter than the side board of baffle plate 3, inside from outermost layer, the length of longitudinal baffle 2 is successively decreased successively, longitudinal baffle 2 is rectangle, the length of 4 pieces of longitudinal baffles 2 is different, the most identical, and the height of longitudinal baffle 2 is identical with the height of baffle plate 3.Be divided between longitudinal baffle 2 and between longitudinal baffle 2 and baffle plate 3 by entering tone mouth 4 in trumpet-shaped passage, the corresponding optimal interference frequency of noise elimination of dividing plate 2 longitudinally in each, multiple dividing plates can reach the purpose eliminated the noise in broadband.
As shown in Figure 2, the structure schematic diagram of noise elimination component is interfered for the present embodiment railroad platform, the back side of substrate 1 is provided with slot 4 corresponding with the position of longitudinal baffle 2 and baffle plate 3, for the grafting that matches with another longitudinal baffle 2 interfering noise elimination component being positioned under it and baffle plate 3.Substrate 1 region of non-inductive windings near outlet sound mouth is done hollow out and is processed, and makes its fretwork area maximum as far as possible, forms substrate hollow part 5.
Substrate 1, longitudinal baffle 2, baffle plate 3 and slot 4 use the metal of material of the same race or plastics to cast or thermoplastic shaping, form integral structure.
Cover plate and 4 above-mentioned interference noise elimination component composition railroad platforms are used to interfere silencing apparatus, as shown in Figure 3, the package assembly schematic diagram of noise elimination component is interfered for the present embodiment railroad platform, the quantity of the integral structure being made up of substrate 1, longitudinal baffle 2, baffle plate 3 and slot 4 is 4, from the bottom up, the baffle plate 3 of first integral structure and longitudinal baffle 2 insert in second integral structure in the back slot 4 of substrate, the like, the substrate 1 in uppermost integral structure be arranged over cover plate.After longitudinal baffle 2 and baffle plate 3 insert slot 4, splicing position being carried out bonding process, including using the bonding etc. of glue and epoxy resin, its purpose is not only increase structural stability, especially in order to prevent leakage sound at slot 4.So, the railroad platform of about four superpositions is formed with interfering noise elimination component.Select different integral structure numbers to meet the application scenarios of differing heights during in-site installation according to actual needs.
As shown in Figure 4, the present embodiment railroad platform structure schematic diagram of interference noise elimination component cover plate, the shape of cover plate is identical with substrate 1, is arranged at longitudinal baffle 2 and the top of baffle plate 3 of the superiors' component, sees the top of structure shown in Fig. 3.Slot on the back side of cover plate is consistent with the slot 4 at substrate 1 back side, and cover plate is connected with longitudinal baffle 2 and baffle plate 3 by slot, but entire plate is not done hollow out and processed.
As shown in Figure 6, when interfering noise elimination component to be applied to railroad platform for the present embodiment railroad platform, interfering the schematic top plan view of noise elimination component and the relation of rail, wherein arrow show train running direction.
Embodiment 2
Other is same as in Example 1, difference is: the shape of the front end of substrate 1 is designed as circular arc, elliptic arc or linear type, the structural representation of difformity substrate in noise elimination component is interfered as Fig. 5-1 and Fig. 5-2 show, Fig. 5-1 be substrate 1 front end be the schematic diagram of arc-shaped, Fig. 5-2 is linear schematic diagram for substrate 1 front end.
Embodiment 3
Other is same as in Example 1, and difference is: for increasing sound path further, part longitudinal baffle 2 may be designed as irregularly shaped, such as bending or arc-shaped etc..
Embodiment 4
Substrate 1 and longitudinal baffle 2 and baffle plate 3 in Fig. 1 of embodiment 1 are separated design, and the front and back of substrate 1 is designed as the inserting slot construction of symmetry, and wherein the position of a slot is consistent with slot in Fig. 24.Each longitudinal baffle 2 is respectively prepared the plate of different length, and baffle plate 3 is the inverted trapezoidal being bent into by a monoblock rectangle long slab.
Each parts such as the baffle plate 3 adding the substrate 1 with two-sided slot 4 in the man-hour, the dividing plate 2 of different length, inverted trapezoidal make respectively, substrate 1 is integrally machined with slot 4, this embodiment has the advantage that mould is simple, processing is easy, the each part simultaneously processed is put by class, take up space little, transport convenient.
Job site is connected into structure similar to Example 1 to above-mentioned each part according to Fig. 3.
Above-described embodiment is not to this utility model structure, the restriction of technique; any this utility model is made the structure after simple transformation; or the technique with identical function; there is analogous shape but change structure proportion, size, assembling mode; key position has the different process processing mode of identical function, belongs to the protection domain of this utility model patent.
Claims (10)
1. a railroad platform is with interfering noise elimination component, it is characterized in that: include substrate, baffle plate, dividing plate and slot, described substrate is divided into the region arranging dividing plate and the region being not provided with dividing plate, described dividing plate is disposed longitudinally on substrate and arranges the region of dividing plate, described baffle plate is centered around side and the bottom edge of substrate, described dividing plate and baffle plate are arranged on substrate front side, two sides of described substrate and bottom constitute inverted trapezoidal, described slot matches with described dividing plate and baffle plate, is arranged on the back side of substrate.
Noise elimination component interfered by railroad platform the most according to claim 1, it is characterised in that: described substrate is provided with at least one piece of dividing plate, and the length of described dividing plate is shorter than the side board of substrate side, and the length of every dividing plate all differs；The height of described baffle plate is identical with divider height.
Noise elimination component interfered by railroad platform the most according to claim 1, it is characterized in that: described substrate is provided with 2-6 dividing plate, the length of dividing plate is successively decreased successively, the most identical, the opening part of substrate front end has the part of dividing plate to be entering tone mouth, the part of non-inductive windings is outlet sound mouth, and entering tone mouth is divided into several entering tone passages by dividing plate.
Noise elimination component interfered by railroad platform the most according to claim 3, it is characterised in that: the passage formed between described dividing plate and between dividing plate and baffle plate is horn-like；The region being not provided with dividing plate on described substrate is provided with openwork part.
Noise elimination component interfered by railroad platform the most according to claim 4, it is characterised in that: described dividing plate is rectangle, bending or arc-shaped；The front end of described substrate is circular arc, elliptic arc or straight line.
Noise elimination component interfered by railroad platform the most according to claim 5, it is characterised in that: the front end of described substrate is two circular arcs intersected, and a circular arc correspond to entering tone mouth, and another circular arc correspond to outlet sound mouth.
7. according to the railroad platform according to any one of claim 1-6 with interfering noise elimination component, it is characterised in that: described substrate, dividing plate, baffle plate and slot use the metal of material of the same race or plastics to cast or thermoplastic shaping, form integral structure.
8. according to the railroad platform according to any one of claim 1-6 with interfering noise elimination component, it is characterised in that: described baffle plate is by the inverted trapezoidal being bent to form by an entire plate；The front of described substrate arranges slot, is connected by slot between described dividing plate with described substrate and between described baffle plate with described substrate.
9. a railroad platform is with interfering silencing apparatus, it is characterized in that: include that noise elimination component interfered by cover plate and the railroad platform according to any one of at least one claim 1-6, the shape of described cover plate is identical with substrate, and the back side of described cover plate is provided with the slot matched with described longitudinal baffle and baffle plate.
Silencing apparatus interfered by railroad platform the most according to claim 9, it is characterized in that: according to the requirement for height of application scenarios, multiple interference noise elimination components are connected in series, from the bottom up, the baffle plate of first substrate is connected by back slot and second substrate of second substrate with longitudinal baffle, the like, uppermost substrate be arranged over cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620384063.6U CN205636536U (en) | 2016-04-28 | 2016-04-28 | Railroad platform is with interfering noise elimination component and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620384063.6U CN205636536U (en) | 2016-04-28 | 2016-04-28 | Railroad platform is with interfering noise elimination component and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205636536U true CN205636536U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620384063.6U Expired - Fee Related CN205636536U (en) | 2016-04-28 | 2016-04-28 | Railroad platform is with interfering noise elimination component and device |
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| CN (1) | CN205636536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755973A (en) * | 2016-04-28 | 2016-07-13 | 中国铁道科学研究院 | Intervention noise abatement component for railroad platform |
-
2016
- 2016-04-28 CN CN201620384063.6U patent/CN205636536U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755973A (en) * | 2016-04-28 | 2016-07-13 | 中国铁道科学研究院 | Intervention noise abatement component for railroad platform |
| CN105755973B (en) * | 2016-04-28 | 2018-06-29 | 中国铁道科学研究院 | A kind of railroad platform interference noise elimination component |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20200428 |