CN210912422U - Floor sound insulation structure - Google Patents
Floor sound insulation structure Download PDFInfo
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- CN210912422U CN210912422U CN201921127334.XU CN201921127334U CN210912422U CN 210912422 U CN210912422 U CN 210912422U CN 201921127334 U CN201921127334 U CN 201921127334U CN 210912422 U CN210912422 U CN 210912422U
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Abstract
The utility model provides a floor sound insulation structure, which is used for a rail vehicle and comprises an underframe; the fireproof layer is made of a material with heat and sound insulation performance and is arranged on the outer surface of the underframe; the damping layer is made of a material with vibration-proof, sound-proof and heat-insulating properties and is arranged on the inner surface of the underframe; the draining plate is arranged on the damping layer; the sound absorption layer is arranged on the draining board; the carbon fiber layer is arranged on the sound absorption layer; fireproof sound-proof layer sets up on the carbon fiber layer to and aluminium honeycomb floor, the setting is in fireproof sound-proof layer top. Through the utility model discloses a floor sound insulation structure satisfies the requirement of fire-resistant 15 minutes integrality and heat-proof quality, and satisfies the sound insulation index requirement, has improved floor structure's fire resistance.
Description
Technical Field
The utility model relates to a rail vehicle makes technical field, in particular to floor sound insulation structure.
Background
The existing motor train unit floor structure can meet the requirement of a sound insulation index (the weighted sound insulation amount is 54dB), the aluminum floor structure design of the existing motor train unit vehicle does not adopt any fireproof protection measures, the aluminum material has a low melting point which is about 660.4 ℃, after the floor structure is subjected to a fireproof test for about 10min, the temperature in a combustion furnace reaches 700 ℃, the aluminum floor is directly subjected to fire to deform or even collapse, meanwhile, the upper surface temperature of floor cloth exceeds the standard requirement, the floor structure which cannot meet the requirement in the EN 45545 standard needs to meet the fireproof requirement of integrity and heat insulation for 15min, the wire passing hole does not have an independent fireproof protection design, flame can escape from the wire passing hole, and the whole floor structure does not have good structural fireproof performance. Meanwhile, the floor has safe fireproof performance under the condition that the acoustic comfort index is met by considering the acoustic performance of the floor structure.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a floor sound insulation structure, this structural design satisfy the requirement of fire-resistant 15 minutes integrality and heat-proof quality, and satisfy the sound insulation index requirement, have improved floor structure's fire resistance.
In order to achieve the above object, the present application provides a floor sound insulating structure for a rail vehicle, the structure including an underframe; the fireproof layer is made of a material with heat and sound insulation performance and is arranged on the outer surface of the underframe; the damping layer is made of a material with vibration-proof, sound-proof and heat-insulating properties and is arranged on the inner surface of the underframe; the draining plate is arranged on the damping layer; the sound absorption layer is arranged on the draining board; the carbon fiber layer is arranged on the sound absorption layer; fireproof sound-proof layer sets up on the carbon fiber layer to and aluminium honeycomb floor, the setting is in fireproof sound-proof layer top.
Further, the floor sound insulation structure further comprises a wood rib, and the wood rib is arranged between the damping layer and the fireproof sound insulation layer.
Further, the aluminum honeycomb floor includes a phenolic composite board layer.
Furthermore, the floor sound insulation structure is provided with a wire passing hole penetrating through the floor sound insulation structure.
Furthermore, the floor sound insulation structure further comprises a sleeve structure, and the sleeve structure is sleeved on the inner wall of the wire passing hole.
Further, the sleeve structure is made of stainless steel.
Further, the thickness of the fire-retardant layer ranges from 2mm to 4 mm.
Further, the damping layer has a thickness in the range of 3mm to 4.5 mm.
Further, the thickness of the draining board ranges from 10mm to 15mm, the thickness of the sound absorption layer ranges from 10mm to 15mm, the thickness of the carbon fiber layer ranges from 35mm to 40mm, and the thickness of the fireproof sound insulation layer ranges from 0.8mm to 1 mm.
Further, the thickness of the phenolic composite board layer ranges from 19.5mm to 21 mm.
Through the utility model discloses a floor sound insulation structure satisfies the requirement of fire-resistant 15 minutes integrality and heat-proof quality, and satisfies the sound insulation index requirement, has improved floor structure's fire resistance.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view illustrating a floor sound-insulating structure according to a preferred embodiment of the present application.
Wherein the figures include the following reference numerals:
10. a rubber floor cloth; 20. an aluminum honeycomb floor; 30. a fire-proof sound-proof layer; 40. a carbon fiber layer; 50. A sound absorbing layer; 60. a draining board; 70. a damping layer; 80. wood bones; 90. a chassis; 100. and a fire-proof layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The utility model provides a floor sound insulation structure, which is used for a rail vehicle and comprises an underframe; the fireproof layer is made of a material with heat and sound insulation performance and is arranged on the outer surface of the underframe; the damping layer is made of a material with vibration-proof, sound-proof and heat-insulating properties and is arranged on the inner surface of the underframe; the draining plate is arranged on the damping layer; the sound absorption layer is arranged on the draining board; the carbon fiber layer is arranged on the sound absorption layer; fireproof sound-proof layer sets up on the carbon fiber layer to and aluminium honeycomb floor, the setting is in fireproof sound-proof layer top.
According to the floor sound insulation structure, the requirements of fire resistance and heat insulation performance within 15 minutes can be met, and the sound insulation index requirement can be met, so that the floor structure has safe fire resistance and has the fire resistance performance meeting the requirements.
Fig. 1 is a schematic structural view illustrating a floor sound-insulating structure according to a preferred embodiment of the present application.
As shown in fig. 1, the floor sound insulation structure includes a rubber floor cloth 10, an aluminum honeycomb floor 20, a fireproof sound insulation layer 30, a carbon fiber layer 40, a sound absorption layer 50, a draining board 60, a damping layer 70, a wood frame 80, a bottom frame 90, and a fireproof layer 100.
As shown, a fire barrier layer 100 is disposed on an exterior surface of the chassis 90. According to a preferred embodiment of the present application, the bottom frame 90 is an aluminum bottom frame, and a fireproof paint (i.e., a fireproof layer) is sprayed under the aluminum bottom frame, so that the fireproof paint expands when heated and has good heat and sound insulation performance, the aluminum profile can be protected, collapse and cracks can be prevented, the structural integrity is ensured, meanwhile, heat transfer is reduced, and the situation that the rubber floor cloth 10 has too high surface and thus the heat insulation index does not meet the standard requirement can be prevented.
The inner surface of the bottom chassis 90 is provided with a damping layer 70, for example, according to the present application, damping paste may be sprayed on the inner surface of the bottom chassis 90. The damping slurry is made of materials with vibration-proof, sound-proof and heat-insulating properties, and the vibration-proof, sound-proof and heat-insulating properties of the floor sound-insulating structure are enhanced by spraying the damping slurry.
The draining board 60 is arranged on the damping layer 70, and the functionality of the floor sound insulation structure can be ensured by arranging the draining board 60.
The sound absorption layer 50 is arranged on the draining board 60, the carbon fiber layer 40 is arranged on the sound absorption layer 50, and the fireproof sound insulation layer 30 is arranged on the carbon fiber layer 40. The sound absorbing layer 50 and the fireproof soundproof layer (such as fireproof soundproof felt) 30 have good sound insulation and noise reduction effects, and do not affect the fireproof performance of the floor soundproof structure.
An aluminum honeycomb floor 20 is disposed on the fireproof and soundproof layer 30, and according to a preferred embodiment of the present application, the aluminum honeycomb floor 20 includes a phenolic composite board layer. According to a preferred embodiment of the present application, an aluminum phenolic composite floor is used as the aluminum honeycomb floor 20. The phenolic composite floor has excellent heat insulation performance and sound insulation performance, so that the heat insulation performance and the sound insulation performance of the sound insulation structure of the floor can be ensured.
As shown, in the present application, a carbon fiber layer 40, such as carbon fiber cotton, is disposed between the aluminum honeycomb floor 20 and a chassis (such as an aluminum profile chassis) 90. The carbon fiber cotton is a porous material, is non-combustible and has good sound absorption performance, so that the sound insulation index of the sound insulation structure of the floor can be ensured, and meanwhile, the sound insulation structure of the floor also has certain heat insulation performance of the floor.
The floor sound insulating structure according to the present application is further provided with a wood rib 80, and the wood rib 80 serves as a support structure of the floor structure. Moreover, the wood frame 80 is obtained by processing wood through a special process, and can provide a good supporting effect for the floor structure.
In addition, a rubber floor cloth 10 is further provided on the aluminum honeycomb floor 20 for protecting the entire floor sound insulation structure.
According to a preferred embodiment of the present application, the floor sound-insulating structure is provided with a wire through hole (not shown) penetrating the floor sound-insulating structure, the wire through hole being used for accommodating a cable. A sleeve structure (not shown, for example, a stainless steel sleeve structure) is sleeved on the inner wall of the wire passing hole, the flame-retardant cable is arranged inside the sleeve structure, the cable has good flame retardancy, and the periphery of the cable is blocked by using A365 fireproof expansion glue. The A365 fireproof expansion glue is in a liquid state in an initial state, has certain gap permeability, can completely block the wire passing hole, has strong adhesion with a blocked material, and has certain hardness and elasticity after being cured. Can expand and form a flame-retardant layer when a fire disaster happens, and can effectively prevent flame from passing through the wire through hole.
According to an embodiment of the present invention, the whole aluminum floor fire-resistant main body structure of the floor sound insulation structure preferably adopts the fire-proof layer 100 with a thickness range between 2mm to 4mm, the damping layer 70 with a thickness range between 3mm to 4.5mm, and adopts the draining board 60 with a thickness range between 10mm to 15mm, the sound absorbing layer 50 with a thickness range between 10mm to 15mm, the carbon fiber layer 40 with a thickness range between 35mm to 40mm, the fire-proof sound insulation layer 30 with a thickness range between 19.5mm to 21mm, and the rubber floor cloth 10 with a thickness range between 3mm to 4 mm.
According to the utility model discloses a still another embodiment, floor sound-proof structure's aluminium alloy chassis 90 surface spraying 2 mm's fire prevention lacquer, chassis 90's internal surface spraying 3 mm's damping thick liquid, and be provided with a plurality of wooden bones 80 in floor sound-proof structure, and wooden bone 80 sets up on the damping thick liquid and sets up between carbon fiber layer 40, sound absorbing layer 50, waterlogging caused by excessive rainfall board 60, 10 mm's sound absorbing layer 50 and 35 mm's carbon fiber cotton 40, and set up 0.8 mm's fire prevention acoustic blanket 30 on carbon fiber cotton 40, set up 19.5mm on fire prevention acoustic blanket 30, set up 3 mm's rubber floor cloth 10 on the phenol-formaldehyde composite board.
The floor sound insulation structure can meet the requirements of fire resistance and heat insulation for 15 minutes, and can meet the requirement of sound insulation indexes, so that the floor structure has safe fire resistance and meets the required fire resistance.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A floor sound insulating structure, comprising:
a chassis (90);
a fire-proof layer (100), the fire-proof layer (100) being made of a material having heat and sound insulation properties, and being disposed on an outer surface of the base frame (90);
a damping layer (70), the damping layer (70) being made of a material having vibration-proof, sound-proof and heat-insulating properties, and being disposed on an inner surface of the chassis (90);
a draining plate (60) disposed on the damping layer (70);
a sound absorbing layer (50) disposed on the draining board (60);
a carbon fiber layer (40) provided on the sound absorbing layer (50);
a fireproof sound-insulating layer (30) provided on the carbon fiber layer (40), and
an aluminum honeycomb floor (20) disposed above the fireproof and soundproof layer (30).
2. The floor sound insulating structure according to claim 1, further comprising a wood rib (80), the wood rib (80) being disposed between the damping layer (70) and the fire-proof sound insulating layer (30).
3. The floor sound insulating structure of claim 1, wherein the aluminum honeycomb floor (20) comprises a phenolic composite board layer.
4. The floor sound insulating structure according to claim 1, wherein the floor sound insulating structure is provided with a wire passing hole penetrating through the floor sound insulating structure.
5. The floor sound insulation structure of claim 4, further comprising a sleeve structure, wherein the sleeve structure is sleeved on an inner wall of the wire through hole.
6. The floor sound insulating structure of claim 5, wherein the sleeve structure is made of stainless steel.
7. The floor sound insulating structure of claim 1, characterized in that the thickness of the fire protection layer (100) ranges between 2mm and 4 mm.
8. A floor acoustic structure according to claim 1, characterized in that the damping layer (70) has a thickness in the range between 3mm and 4.5 mm.
9. The floor sound insulating structure according to claim 1, characterized in that the thickness of the draining board (60) ranges between 10mm and 15mm, the thickness of the sound absorbing layer (50) ranges between 10mm and 15mm, the thickness of the carbon fiber layer (40) ranges between 35mm and 40mm, and the thickness of the fire-proof and sound-proof layer (30) ranges between 0.8mm and 1 mm.
10. The floor sound insulating structure of claim 3, wherein the phenolic composite board layer has a thickness ranging between 19.5mm and 21 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921127334.XU CN210912422U (en) | 2019-07-17 | 2019-07-17 | Floor sound insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921127334.XU CN210912422U (en) | 2019-07-17 | 2019-07-17 | Floor sound insulation structure |
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| Publication Number | Publication Date |
|---|---|
| CN210912422U true CN210912422U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921127334.XU Active CN210912422U (en) | 2019-07-17 | 2019-07-17 | Floor sound insulation structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682329A (en) * | 2021-10-08 | 2021-11-23 | 中车大同电力机车有限公司 | Locomotive cab rear wall and locomotive |
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2019
- 2019-07-17 CN CN201921127334.XU patent/CN210912422U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682329A (en) * | 2021-10-08 | 2021-11-23 | 中车大同电力机车有限公司 | Locomotive cab rear wall and locomotive |
| CN113682329B (en) * | 2021-10-08 | 2022-11-29 | 中车大同电力机车有限公司 | Locomotive cab rear wall and locomotive |
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