CN212135914U - Be applied to noise insulation of piano - Google Patents

Abstract

The utility model discloses a sound insulation device applied to a piano, which comprises a piano body, a piano frame, a pillar, sound insulation boards and a shock absorption backing plate, wherein the front end of the piano body is provided with the piano frame, the bottom of the piano frame is provided with the pillar, the bottom of the piano body and the pillar are both connected with the shock absorption backing plate, the exterior of the piano body is provided with the sound insulation boards, positioning holes are distributed inside the two sides of the sound insulation boards, positioning bolts are distributed outside the two sides of the sound insulation boards, the outer side of the sound insulation boards is provided with a back plate, the inner side of the back plate is provided with a foam board, the inner side of the foam board is provided with rubber and plastic rock wool, the inner side of the rubber and plastic rock wool is provided with a light steel keel frame, the inner side of the light steel keel frame is provided with glass fiber sound insulation cotton, which relates to the technical field of piano sound insulation, fireproof and waterproof, noise reduction and sound absorption, effective isolation of impact noise and air propagation noise, and reasonable design.

Description

Be applied to noise insulation of piano

Technical Field

The utility model relates to a piano sound insulation technical field specifically is a be applied to sound insulation of piano.

Background

A piano (italian: pianoforte) is a keyboard instrument in western classical music, and has a name of "king of instrument". It is composed of 88 keys (52 white keys, 36 black keys) and a metal string sound board. When the piano is played, the sound produced by the vibration of the strings is large, and the normal life of residents is influenced by the piano practice.

The noise insulation of current piano can only the separation rear portion sound, and application range limits, and inconvenient dismantlement combination is difficult to the efficient protection, and factor of safety is low, and structural strength is low, and stability can not be not enough, and sound is easy to be followed the bottom vibration, can not completely cut off striking noise and air propagation noise.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a be applied to sound insulation of piano, the sound insulation of having solved current piano can only the separation rear portion sound, and application range limits to, and inconvenient dismantlement combination is difficult to the efficient protection, and factor of safety is low, and structural strength is low, and stability can not be enough, and sound is easy to be followed the bottom and is vibrated, can not completely cut off the problem of striking noise and air propagation noise.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a sound insulation device applied to a piano comprises a piano body, a piano frame, a supporting column, sound insulation boards and a damping base plate, wherein the piano frame is arranged at the front end of the piano body, the supporting column is arranged at the bottom of the piano frame, the damping base plate is connected with the bottom of the piano body and the supporting column, the sound insulation boards are arranged outside the piano body, positioning holes are distributed in the two sides of each sound insulation board, positioning bolts are distributed outside the two sides of each sound insulation board, a back plate is arranged outside the sound insulation boards, a foam board is arranged inside the back plate, rubber rock wool is arranged inside the foam board, a light steel keel frame is arranged inside the rubber rock wool, glass fiber sound insulation cotton is arranged inside the light steel keel frame, a polyurethane cushion is arranged at the top of the damping base plate, a polyethylene foam cushion is arranged at the bottom of the polyurethane cushion, and a high-density rubber layer is arranged at the bottom of the polyethylene foam cushion, the bottom of high density rubber layer is equipped with the cotton pad of EVA bubble.

Preferably, the piano body has all welded the mounting panel with the bottom of pillar, be connected between mounting panel and the shock attenuation backing plate and install the bolt.

Preferably, the top welding of piano body has the apron, the sound cotton is inhaled in the bottom front and back end bonding of apron.

Preferably, the rubber-plastic rock wool is made of 150k polyester fiber, and the light steel keel frame is of a Z-shaped frame structure.

Preferably, the light steel keel frame is filled with high-density sound-absorbing cotton, and the thickness of the light steel keel frame is 1.3 cm.

(III) advantageous effects

The utility model provides a be applied to sound insulation of piano. The method has the following beneficial effects:

(1) this be applied to sound insulation of piano, through the acoustic celotex board that sets up in the outside of piano body, a plurality of locating holes through its both sides and the outside a plurality of positioning bolt location fixed mounting of both sides, the combination is dismantled to the convenience, the installation fastening, it is effectual to give sound insulation, backplate through setting up in the outside of acoustic celotex board, it is sturdy and durable, protection safety, cystosepiment and rock wool rubber and plastic through the inboard setting at the backplate, give sound insulation and fall and make an uproar, block the volume, through the fine soundproof cotton of light steel keel frame and the glass that sets up at acoustic celotex board medial extremity, the structural strength is improved, high stability, reach the effect of closed sound, wide application range.

(2) This be applied to sound insulation of piano, through the shock attenuation backing plate of being connected in the bottom of piano body and pillar for whole shock attenuation buffering improves stability, fills up and polyethylene foam through the polyurethane that sets up on shock attenuation backing plate, and is corrosion-resistant, fire prevention and water prevention falls to make an uproar and inhales the sound, and antiskid is wear-resisting, fills up through high density rubber layer and the EVA bubble cotton that sets up at shock attenuation backing plate lower extreme, effectual isolated striking noise and air propagation noise, reasonable in design.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the sound insulation board of the present invention;

fig. 3 is the schematic view of the shock absorbing pad structure of the present invention.

In the figure, a piano body 1, a piano frame 2, a strut 3, a sound insulation board 4, a shock absorption base plate 5, a mounting plate 6, a positioning hole 7, a positioning bolt 8, a cover plate 9, a back plate 10, a foam plate 11, rubber and plastic rock wool 12, a light steel keel frame 13, glass fiber sound insulation cotton 14, a polyurethane pad 15, a polyethylene foam pad 16, a high-density rubber layer 17 and an EVA foam pad 18.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides a technical solution: a sound insulation device applied to a piano comprises a piano body 1, a piano frame 2, a strut 3, sound insulation boards 4 and a shock absorption base plate 5, wherein the piano frame 2 is arranged at the front end of the piano body 1, the strut 3 is arranged at the bottom of the piano frame 2, the shock absorption base plate 5 is connected with the bottoms of the piano body 1 and the strut 3, the sound insulation boards 4 are arranged outside the piano body 1, positioning holes 7 are distributed inside the two sides of the sound insulation boards 4, positioning bolts 8 are distributed outside the two sides of the sound insulation boards 4, a back plate 10 is arranged outside the sound insulation boards 4, a foam board 11 is arranged inside the back plate 10, rubber and plastic rock wool 12 is arranged inside the foam board 11, a light steel keel frame 13 is arranged inside the rubber rock wool 12, sound insulation cotton 14 is arranged inside the light steel keel frame 13, a polyurethane cushion 15 is arranged at the top of the shock absorption base plate 5, the bottom of polyurethane pad 15 is equipped with polyethylene foam pad 16, the bottom of polyethylene foam pad 16 is equipped with high density rubber layer 17, the bottom of high density rubber layer 17 is equipped with EVA foam pad 18.

The bottom of piano body 1 and pillar 3 has all welded mounting panel 6, the bolt is installed in connection between mounting panel 6 and the shock attenuation backing plate 5, and the location installation of being convenient for is dismantled, and the fastening is reliable.

The top welding of piano body 1 has apron 9, the sound cotton is inhaled in the bottom front and back end bonding of apron 9, and convenient further shelters from the top sound production.

The rubber-plastic rock wool 12 is made of 150k polyester fiber, the light steel keel frame 13 is of a Z-shaped frame structure, and the light steel keel frame is high in structural strength and good in sound insulation effect.

The light steel keel frame 13 is filled with high-density sound-absorbing cotton, the thickness of the light steel keel frame 13 is 1.3cm, the thickness is large, and the effect of professional sound insulation is achieved.

The working principle is as follows: the acoustic celotex board 4 outside piano body 1 fixes a position fixed mounting through a plurality of locating holes 7 and the outside a plurality of positioning bolt 8 in both sides of its both sides, the convenient dismantlement combination, backplate 10 outside acoustic celotex board 4 is sturdy and durable, protection safety, the cystosex 11 and the rubber and plastic rock wool 12 sound insulation of backplate 10 inboard are fallen and make an uproar, block the volume, light steel keel frame 13 and the fine soundproof cotton 14 of glass have improved its structural strength through 4 medial extremity light steel keel frame 13 of acoustic celotex board, the stability can be high, reach the effect of closed sound, piano body 1 makes whole shock attenuation buffering with 3 bottom connection's of pillar backing plate 5, polyurethane pad 15 and polyethylene foam pad 16 of the upper end of backing plate 5 make corrosion-resistant, fire prevention and water resistance, fall the sound of making an uproar, antiskid is wear-resistant, high density rubber layer.

The utility model relates to a piano body 1, a piano frame 2, a pillar 3, a sound insulation board 4, a shock absorption backing board 5, a mounting board 6, a positioning hole 7, a positioning bolt 8, a cover board 9, a back board 10, a foam board 11, rubber and plastic rock wool 12, a light steel keel frame 13, glass fiber sound insulation cotton 14, a polyurethane cushion 15, a polyethylene foam cushion 16, a high-density rubber layer 17 and an EVA foam cushion 18, wherein the components are all universal standard components or components known by technicians in the field, the structure and principle of the components can be known by technical manuals or conventional experimental methods, the utility model solves the problems that the existing sound insulation device of the piano can only obstruct rear sound, the application range is limited, the disassembly and assembly are inconvenient, the efficient protection is difficult, the safety coefficient is low, the structural strength is low, the stability is insufficient, the sound easily vibrates from the bottom, the impact noise and the air propagation noise can not be isolated, the utility model discloses a combination of each other of above-mentioned part, the combination is conveniently dismantled, and the installation is fastened, and it is effectual to give sound insulation, and it makes an uproar to give sound insulation, blocks the volume, and stability can be high, reaches the effect of closed sound, improves stability, and is corrosion-resistant, fire prevention and water prevention, fall the sound of making an uproar, and the antiskid is wear-resisting, effectual isolated striking noise and air propagation noise, reasonable in design.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. A be applied to noise insulation of piano which characterized in that: comprises a piano body (1), a piano frame (2), a strut (3), sound insulation boards (4) and shock absorption base plates (5), wherein the piano frame (2) is arranged at the front end of the piano body (1), the strut (3) is arranged at the bottom of the piano frame (2), the shock absorption base plates (5) are connected with the bottoms of the piano body (1) and the strut (3), the sound insulation boards (4) are arranged outside the piano body (1), positioning holes (7) are distributed inside two sides of each sound insulation board (4), positioning bolts (8) are distributed outside two sides of each sound insulation board (4), a back plate (10) is arranged outside the sound insulation boards (4), a foam board (11) is arranged inside the back plate (10), rubber and plastic rock wool (12) is arranged inside the foam board (11), a light steel skeleton (13) is arranged inside the rubber and plastic rock wool (12), the inboard of light steel keel frame (13) is equipped with fine soundproof cotton of glass (14), the top of shock attenuation backing plate (5) is equipped with polyurethane pad (15), the bottom of polyurethane pad (15) is equipped with polyethylene foam pad (16), the bottom of polyethylene foam pad (16) is equipped with high density rubber layer (17), the bottom of high density rubber layer (17) is equipped with EVA foam cotton pad (18).

2. A sound-proofing device for a piano according to claim 1, wherein: the bottom of piano body (1) and pillar (3) all welds has mounting panel (6), it installs the bolt to be connected between mounting panel (6) and shock attenuation backing plate (5).

3. A sound-proofing device for a piano according to claim 1, wherein: the top welding of piano body (1) has apron (9), the sound cotton is inhaled in the bottom front and back end bonding of apron (9).

4. A sound-proofing device for a piano according to claim 1, wherein: the rubber-plastic rock wool (12) is made of 150k polyester fiber, and the light steel keel frame (13) is of a Z-shaped frame structure.

5. A sound-proofing device for a piano according to claim 1, wherein: the light steel keel frame (13) is filled with high-density sound-absorbing cotton, and the thickness of the light steel keel frame (13) is 1.3 cm.

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