1. A flexible connecting piece is used for connecting a sound insulation and vibration reduction plate with a wall body and is characterized in that the flexible connecting piece is made of rubber materials, a first counter bore is formed in the back face of the flexible connecting piece, an expansion bolt connected with the wall body penetrates through the first counter bore, a second counter bore is formed in the front face of the flexible connecting piece, and a first bolt connected with a sound insulation and sound absorption plate penetrates through the second counter bore; the first counter sink is located below the second counter sink.

2. The flexible connection unit of claim 1 wherein the back side of the flexible connection unit is provided with a plurality of first semi-cylindrical slots and the front side of the flexible connection unit is provided with a plurality of second semi-cylindrical slots.

3. The sound-insulating vibration-damping sheet material according to claim 2, wherein the first semi-cylindrical groove is vertically disposed and the second semi-cylindrical groove is horizontally disposed; the first semi-cylindrical groove and the second semi-cylindrical groove are the same in shape.

4. A sound insulation vibration attenuation plate is hung on the outer surface of a wall body and is characterized by comprising a reflecting layer, a damping layer, a vibration isolation layer, a supporting plate and a sound attenuation cotton layer which are sequentially bonded with one another; the reflecting layer is a flat plate made of hard PPS, the damping layer is formed by polyvinyl butyral or vinyl acetate polymer, and the shock insulation layer is made of foam magnesium or foam aluminum.

5. The sound-insulating vibration-damping plate according to claim 4, wherein the reflecting layer is provided with a plurality of semi-elliptical grooves.

6. The sound-insulation vibration-damping plate as claimed in claim 5, wherein an outer packaging layer is arranged on the side of the sound-insulation vibration-damping plate facing away from the wall, and an inner packaging layer is arranged on the side of the sound-insulation vibration-damping plate facing towards the wall.

7. The sound insulation and vibration reduction plate as claimed in claim 6, wherein a covered edge is arranged around the sound insulation and vibration reduction plate, and the covered edge is formed by sequentially connecting a plurality of frame members.

8. The sound-insulating vibration-damping plate according to claim 7, wherein said frame members are hollow "L" shaped and comprise a first side and a second side, and the first side is connected to the second side of an adjacent frame member by a plurality of second bolts.

9. The sound insulation and vibration reduction plate according to claim 8, wherein the sound insulation and vibration reduction plate is connected with a wall body through the flexible connecting piece according to any one of claims 1 to 3, the sound insulation and vibration reduction plate further comprises a nut, and the first bolt penetrates through the second countersunk hole and the frame member and is in threaded connection with the nut.

Background

Along with the industrial development, the power of machine equipment is bigger and bigger, and the stronger the noise intensity that the machine sent, the noise makes people be distracted, seriously disturbs people's life or work in the surrounding environment. At present, the sound insulation performance of most sound insulation and absorption plates used in noise treatment projects mainly depends on the thickness and the surface density of a sound insulation back plate, and the sound absorption performance depends on the sound absorption characteristics of a sound absorption material. Under the condition of the same plate, the smaller the thickness of the sound insulation and absorption plate is, the weaker the sound insulation performance is. In addition, in the implementation process, the sound insulation and absorption plate vibrates due to noise, and the sound insulation and absorption plate vibrates to generate secondary noise. One part of noise is transmitted into the room through an air medium, and the other part of noise is transmitted into the room through a structure connected with a building, so that the sound insulation and noise reduction effects are reduced, and particularly the treatment effect of low-frequency noise is poor.

Disclosure of Invention

The invention aims to provide a sound insulation and vibration reduction plate and a flexible connecting piece. Has the advantages of sound insulation, sound absorption and noise reduction.

In order to solve the technical problems, the invention provides the following technical scheme: a flexible connecting piece is used for connecting a sound insulation and vibration reduction plate with a wall body and is made of rubber materials, a first counter bore is formed in the back face of the flexible connecting piece, an expansion bolt connected with the wall body is arranged to penetrate through the first counter bore, a second counter bore is formed in the front face of the flexible connecting piece, and a first bolt connected with a sound insulation and absorption plate is arranged to penetrate through the second counter bore; the first counter sink is located below the second counter sink.

Furthermore, the back of the flexible connecting piece is provided with a plurality of first semi-cylinder grooves, and the front of the flexible connecting piece is provided with a plurality of second semi-cylinder grooves.

Furthermore, the first semi-cylinder groove is vertically arranged, and the second semi-cylinder groove is horizontally arranged; the first semi-cylindrical groove and the second semi-cylindrical groove are the same in shape.

The invention also provides a sound insulation vibration attenuation plate which comprises a reflecting layer, a damping layer, a vibration isolation layer, a supporting plate and a sound attenuation cotton layer which are sequentially bonded with one another; the reflecting layer is a flat plate made of hard PPS, the damping layer is formed by polyvinyl butyral or vinyl acetate polymer, and the shock insulation layer is made of foam magnesium or foam aluminum.

Furthermore, a plurality of semi-elliptical grooves are arranged on the reflecting layer.

Furthermore, an outer packaging layer is arranged on one surface, back to the wall body, of the sound insulation and vibration reduction plate, and an inner packaging layer is arranged on one surface, facing the wall body, of the sound insulation and vibration reduction plate.

Furthermore, the periphery of the sound insulation and vibration reduction plate is provided with a covered edge, and the covered edge is formed by sequentially connecting a plurality of frame pieces.

Furthermore, the frame pieces are hollow and L-shaped and comprise a first edge and a second edge, and the first edge and the second edge of the adjacent frame piece are connected together through a plurality of second bolts.

Furthermore, the sound insulation and vibration reduction plate is connected with the wall body through a flexible connecting piece, the sound insulation and vibration reduction plate further comprises a nut, and the first bolt penetrates through the second counter sink and the frame piece and is in threaded connection with the nut.

Compared with the prior art, the invention has the beneficial effects that: because the back of the flexible connecting piece is provided with the first counter sink, the expansion bolt which is connected with the wall body is arranged through the first counter sink; a second countersunk hole is formed in the front face of the flexible connecting piece, and a first bolt connected with the sound insulation and absorption plate penetrates through the second countersunk hole; the first counter sink is located below the second counter sink. The sound insulation and absorption board is connected with the wall body through a flexible connecting piece. The vibrating sound insulation and absorption plate can not transmit vibration to the wall body through the flexible connecting piece, so that the noise can be blocked from being transmitted to the indoor space.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a flexible connecting element and a wall according to an embodiment of the present invention;

FIG. 2 is a schematic view of the flexible connector of FIG. 1 from another perspective;

FIG. 3 is a schematic structural diagram of a sound insulation and vibration reduction plate according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of the reflective layer of FIG. 3;

fig. 5 is a schematic structural diagram of a frame member according to an embodiment of the invention.

In the figure: 1. an outer packaging layer; 2. a reflective layer; 3. a damping layer; 4. a seismic isolation layer; 5. a support plate; 6. a sound-deadening cotton layer; 7. an inner packaging layer; 8. a flexible connector; 9. a wall body; 10. a first bolt; 11. a nut; 12. an expansion bolt; 13. a frame member; 14. a second bolt; 131. a first side; 132. a second edge; 81. a first semi-cylindrical slot; 82. a second semi-cylindrical slot; 83. a first counterbore; 84. a second counterbore; 21. a semi-elliptical trough.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, a flexible connecting member according to a preferred embodiment of the present invention is used for connecting a sound insulation and vibration reduction plate to a wall 9, the flexible connecting member 8 is made of rubber material, a first countersunk hole 83 is formed in a back surface of the flexible connecting member 8, an expansion bolt 12 connected to the wall 9 is disposed through the first countersunk hole 83, a second countersunk hole 84 is formed in a front surface of the flexible connecting member 8, and a first bolt 10 connected to a sound insulation and sound absorption plate is disposed through the second countersunk hole 84; the first counterbore 83 is located below the second counterbore 84.

Because the back of the flexible connecting piece 8 is provided with the first counter sink 83, the expansion bolt 12 connected with the wall 9 is arranged through the first counter sink 83; a second countersunk hole 84 is formed in the front face of the flexible connecting piece 8, and a first bolt 10 connected with the sound insulation and absorption plate penetrates through the second countersunk hole 84; the first counterbore 83 is located below the second counterbore 84. The sound insulation and absorption plate is connected with a wall body 9 through a flexible connecting piece 8. The vibrating sound insulation and absorption plate cannot conduct vibration to the wall 9 through the flexible connecting piece 8, so that the noise can be blocked from being transmitted indoors.

In order to enhance the bending resistance of the flexible connecting member 8 and reduce the transmission of sound vibration, further, the back surface of the flexible connecting member 8 is provided with a plurality of first semi-cylindrical grooves 81, and the front surface of the flexible connecting member 8 is provided with a plurality of second semi-cylindrical grooves 82. The first and second semi-cylindrical grooves 81 and 82 enhance the bending resistance of the flexible connector 8, and the effect of blocking the transmission of sound vibration is better.

In order to maintain the flexibility of the flexible connecting piece 8, further, the first semi-cylindrical groove 81 is vertically arranged, and the second semi-cylindrical groove 82 is horizontally arranged; the first semi-cylindrical slot 81 is identical in shape to the second semi-cylindrical slot 82. The criss-cross first and second semi-cylindrical grooves 81 and 82 not only keep the flexible connecting member 8 to have better toughness, but also block the sound vibration propagation with better effect.

The invention also provides a sound insulation vibration attenuation plate which comprises a reflecting layer 2, a damping layer 3, a vibration isolation layer 4, a supporting plate 5 and a noise attenuation cotton layer 6 which are sequentially bonded with one another; the reflecting layer 2 is a flat plate made of hard PPS, the damping layer 3 is formed of polyvinyl butyral or vinyl acetate polymer, and the seismic isolation layer 4 is made of foamed magnesium or foamed aluminum.

The reflecting layer 2 reflects the noise to the outside, and the damping layer 3 reduces the energy of the noise; the decibel value of the noise is reduced; the vibration isolation layer 4 made of foam magnesium or foam aluminum has obvious weight difference with other layers and different natural frequencies, so that vibration caused by noise can be reduced; the supporting plate 5 is used as a bearing structure for supporting the whole sound insulation vibration reduction plate to be in a plate shape; the rest noise enters the silencing cotton layer 6 and is continuously reflected on the silencing cotton layer 6, and the energy of the noise is gradually attenuated.

In order to enlarge the reflection area of the reflection layer 2, a plurality of semi-elliptical grooves 21 are further provided on the reflection layer 2. The larger the reflection area, the higher the reflectivity of the noise, and the less the noise passes through the reflective layer 2.

In order to facilitate installation and transportation of the sound insulation and vibration reduction plate, an outer packaging layer 1 is arranged on one surface of the sound insulation and vibration reduction plate, which is back to the wall body 9, and an inner packaging layer 7 is arranged on one surface of the sound insulation and vibration reduction plate, which faces the wall body 9.

In order to protect and facilitate installation of the sound insulation and vibration reduction plate, a wrapping edge is further arranged around the sound insulation and vibration reduction plate and is formed by sequentially connecting a plurality of frame pieces 13.

Further, the frame members 13 are hollow and have an "L" shape, and include a first edge 131 and a second edge 132, and the first edge 131 is connected to the second edge 132 of the adjacent frame member 13 by a plurality of second bolts 14. The edges of the sound-insulating vibration-damping sheet material are placed in the hollow of the frame member 13. The four frame pieces 13 are connected in sequence to completely wrap the edges of the sound-insulation vibration-reduction plate.

Further, the sound insulation and vibration reduction plate is connected with a wall 9 through a flexible connecting piece 8, the sound insulation and vibration reduction plate further comprises a nut 11, and the first bolt 10 penetrates through the second counter sink 84 and the frame piece 13 and is in threaded connection with the nut 11. The sound insulation vibration reduction plate is hung on the outer surface of the wall body 9 through the flexible connecting piece 8, and the noise is blocked from being transmitted to the inside of the wall body 9.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.