阅读说明：本技术 一种减振龙骨、隔声墙体单元和隔声墙体 (Vibration reduction keel, sound insulation wall unit and sound insulation wall ) 是由 董占波 刘明海 徐正东 于 2020-06-29 设计创作，主要内容包括：本申请公开了一种减振龙骨、隔声墙体单元和隔声墙体。减振龙骨包括依次连接的第一固定臂、连接臂和第二固定臂,所述第一固定臂和所述第二固定臂相平行,所述连接臂倾斜设置,且所述连接臂与所述第二固定臂连接的一端朝向远离所述第一固定臂的一侧倾斜。隔声墙体包括第一墙板、第二墙板和减振龙骨,所述第一墙板和所述第二墙板通过所述减振龙骨连接,并在所述第一墙板和所述第二墙板之间形成第一空腔。该隔声墙体中,通过设置减振龙骨,大大提高了墙体的隔声性能。(The application discloses damping fossil fragments, sound insulation wall unit and sound insulation wall. Damping fossil fragments are including the first fixed arm, linking arm and the second fixed arm that connect gradually, first fixed arm with the second fixed arm parallels, the linking arm slope sets up, just the linking arm with the one end orientation that the second fixed arm is connected is kept away from one side slope of first fixed arm. The sound insulation wall comprises a first wallboard, a second wallboard and a vibration reduction keel, wherein the first wallboard is connected with the second wallboard through the vibration reduction keel, and a first cavity is formed between the first wallboard and the second wallboard. In the sound insulation wall, the sound insulation performance of the wall is greatly improved by arranging the vibration reduction keel.)

1. The utility model provides a damping fossil fragments, its characterized in that, is including the first fixed arm, linking arm and the second fixed arm that connect gradually, first fixed arm with the second fixed arm parallels, the linking arm slope sets up, just the linking arm with the one end orientation that the second fixed arm is connected is kept away from one side slope of first fixed arm.

2. The vibration damping keel according to claim 1, wherein one end of the second fixing arm far away from the first fixing arm is provided with a supporting edge, the supporting edge is bent towards one side where the first fixing arm is located, and the height of the supporting edge is smaller than that of the vibration damping keel.

3. The vibration dampening keel as defined in claim 2, wherein said support edge is a straight edge disposed perpendicularly relative to said second stationary arm;

or the supporting edge is an inclined edge which is obliquely arranged relative to the second fixing arm, and an included angle between the supporting edge and the second fixing arm is an obtuse angle.

4. The vibration dampening keel according to claim 2, wherein the distance between said support edge and the end surface of said first fixed arm distal from said second fixed arm is 3mm to 10 mm.

5. The vibration dampening keel according to any one of claims 1-4, wherein the end of said first fixed arm remote from said second fixed arm is provided with a bead, said bead being bent toward the side where said second fixed arm is located, and the height of said bead is less than the height of said vibration dampening keel.

6. The vibration dampening keel according to any of claims 1-4, wherein the angle between the connecting arm and the first fixed arm is between 100 ° and 160 °.

7. The vibration dampening keel according to any of claims 1-4, wherein the first securing arm has a width different than a width of the second securing arm.

8. The vibration dampening keel according to any of claims 1-4, wherein said first and second securing arms have screw retaining holes therein.

9. Vibration-damping runner as claimed in any of the claims 1-4, characterized in that the vibration-damping runner has a width of 50mm-150mm, a height of 10mm-50mm and a wall thickness of 0.4mm-1mm and is manufactured from galvanized steel strip.

10. An acoustical isolation wall unit comprising a first wall panel, a second wall panel, and the vibration dampening grid of any one of claims 1-9, wherein the first wall panel and the second wall panel are connected by the vibration dampening grid and form a first cavity between the first wall panel and the second wall panel.

11. The sound insulating wall unit of claim 10, wherein the first fixed arm has a width less than a width of the second fixed arm, the first wall panel is positioned outside the second wall panel, and the first wall panel is attached to the second fixed arm of the vibration dampening keel, and the second wall panel is attached to the first fixed arm of the vibration dampening keel.

12. An acoustical isolation wall unit as set forth in claim 11, wherein said second stationary arm has a gap between its supporting edge and said second wall panel, said gap being between 3mm and 12 mm.

13. A sound insulating wall unit according to claim 12, wherein the first wall panel is connected to the second fixing arm by a screw, and the second wall panel is connected to the first fixing arm by a screw.

14. A sound insulation wall, which is characterized by comprising a first wall unit, a second wall unit, a support keel and the vibration reduction keel according to any one of claims 1-9, wherein the vibration reduction keel is fixed on both sides of the support keel, and the vibration reduction keels on both sides are respectively connected with the first wall unit and the second wall unit.

15. An acoustical insulating wall unit as claimed in claim 10, wherein the vibration dampening keel has free ends at both ends.

16. A sound insulating wall unit according to claim 15, wherein the vibration absorbing keel is disposed transversely or longitudinally or obliquely.

Technical Field

The present invention relates to, but is not limited to, the technical field of buildings, and particularly to a vibration damping keel, a sound insulation wall unit and a sound insulation wall.

Background

Gypsum board walls are increasingly used as indoor partitions in modern buildings as a lightweight wall. In the gypsum board wall body, the gypsum board is fixed on the light steel keel, and the light steel keel is utilized to support and fix the gypsum board. However, although the gypsum board wall has a certain sound insulation capability, a good sound insulation effect is difficult to achieve, and the requirements of people cannot be met.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the application provides a vibration reduction keel, a sound insulation wall unit and a sound insulation wall, wherein the vibration reduction keel can convert sound energy into mechanical vibration energy and then convert the mechanical vibration energy into heat energy to be dissipated, so that the purposes of sound insulation and noise reduction are achieved, and the sound insulation wall has a good sound insulation effect.

The embodiment of the application provides a damping fossil fragments, including first fixed arm, linking arm and the second fixed arm that connects gradually, first fixed arm with the second fixed arm parallels, the linking arm slope sets up, just the linking arm with the one end orientation that the second fixed arm is connected is kept away from one side slope of first fixed arm.

The embodiment of the application provides a sound insulation wall unit, including first wallboard, second wallboard and above the damping fossil fragments, first wallboard with the second wallboard passes through the damping fossil fragments are connected, and form the cavity between first wallboard with the second wallboard.

The embodiment of the application provides a sound insulation wall body, including first wall body unit, second wall body unit, support fossil fragments and the above damping fossil fragments, the both sides of supporting fossil fragments all are fixed with damping fossil fragments, both sides damping fossil fragments respectively with first wall body unit with second wall body unit connects.

In the embodiment of the application, the damping fossil fragments are including the first fixed arm, linking arm and the second fixed arm that connect gradually, make the damping fossil fragments roughly be "it" style of calligraphy, consequently, the damping fossil fragments have certain elasticity, when energy such as sound wave acts on wall body or damping fossil fragments on, the damping fossil fragments can produce the vibration, turns into solid mechanical vibration energy with acoustic energy through the vibration, turns into heat energy again and dissipates to reach the sound insulation, fall the purpose of making an uproar, improve the sound insulation performance of wall body.

Other features and advantages of the present application will be set forth in the description that follows.

Drawings

Fig. 1 is a first structural schematic view of a vibration-damping keel according to a first embodiment of the application;

fig. 2 is a structural schematic view of a vibration-damping keel according to the first embodiment of the application;

fig. 3 is a schematic structural view of a vibration-damping keel according to a second embodiment of the application;

fig. 4 is a structural schematic view of a vibration-damping keel according to the second embodiment of the application;

fig. 5 is a partial structural schematic view of a sound insulation wall unit according to an embodiment of the present application;

fig. 6 is a partial structural schematic view of a sound insulation wall according to a first embodiment of the present application;

fig. 7 is a schematic structural view of a sound insulation wall according to a second embodiment of the present application.

Reference numerals:

1: a first wall panel; 2: a second wall panel; 3: vibration damping keel; 31: a first fixed arm; 32: a second fixed arm; 33: a connecting arm; 34: curling; 35: a support edge; 4: a support keel; 5: a sound insulating strip; 61: a first cavity; 62: second cavity, 7: screw, 8: sound absorbing material, 9-a first wall element, 10-a second wall element.

Detailed Description

Embodiments of the present application will be described below with reference to the accompanying drawings.

The embodiment of the present application provides a vibration reduction keel 3, as shown in fig. 1-4, including first fixed arm 31, connecting arm 33 and second fixed arm 32 that connect gradually, first fixed arm 31 and second fixed arm 32 are parallel, and connecting arm 33 inclines to set up, and the one end orientation that connecting arm 33 is connected with second fixed arm 32 inclines away from one side of first fixed arm 31.

As shown in fig. 1 to 4, the first fixing arm 31 and the second fixing arm 32 are horizontally disposed with a horizontal and vertical interval therebetween, so that the first fixing arm 31 and the second fixing arm 32 are in a staggered state (i.e., a projection of the first fixing arm 31 on a plane where the second fixing arm 32 is located is separated from the second fixing arm 32), a first end (a left end in fig. 1 to 4) of the connecting arm 33 is connected to the first fixing arm 31, a second end (a right end in fig. 1 to 4) is connected to the second fixing arm 32, and the second end of the connecting arm 33 is inclined toward a side (a right side in fig. 1 to 4) away from the first fixing arm 31. The wall thickness of the vibration damping keel 3 is omitted in fig. 2 and 4.

The vibration-damping keel 3 is approximately in a shape of Chinese character 'ji', and has good elasticity, when energy such as sound waves acts on the vibration-damping keel 3 or a wall body (shown in figures 5-7) provided with the vibration-damping keel 3, the vibration-damping keel 3 can generate vibration, sound energy is converted into solid mechanical vibration energy through the vibration, and then the solid mechanical vibration energy is converted into heat energy to be dissipated, so that the purposes of sound insulation and noise reduction are achieved, and the sound insulation performance of the wall body is improved.

Compare ordinary light gauge steel (like C type etc.), Z type fossil fragments, "it" style of calligraphy damping fossil fragments 3 have better elasticity, connect the wallboard of "it" style of calligraphy damping fossil fragments 3 both sides for non-rigid connection, during the wallboard vibration of its one side, be difficult for passing to another side wallboard with the vibration to improve the sound-proof performance of wall body.

Because the damping material with good elasticity has good noise reduction effect on low frequency, the Z-shaped keel has better sound absorption effect than the Z-shaped keel in low frequency, especially between 100 Hz and 300 Hz, and can make up the defect that the traditional C-shaped keel and Z-shaped keel have poorer sound absorption performance in low frequency.

In some exemplary embodiments, as shown in fig. 1 to 4, an end of the second fixing arm 32 away from the first fixing arm 31 is provided with a supporting edge 35, the supporting edge 35 is bent toward a side where the first fixing arm 31 is located, and the height of the supporting edge 35 is smaller than that of the vibration-damping keel 3.

As shown in fig. 1 to 4, an end (right end in fig. 1 to 4) of the second fixing arm 32 remote from the first fixing arm 31 is provided with a support edge 35, the support edge 35 is bent toward a side (upper side in fig. 1 to 4) where the first fixing arm 31 is located, and a height B1 of the support edge 35 is smaller than a height B of the vibration-damping keel 3, so that a height difference B2 exists between the support edge 35 and the first fixing arm 31.

The support edges 35 can enhance the stiffness of the vibration damper grid 3 so that the vibration damper grid 3 can be used to connect wall panels. The height difference B2 is provided between the supporting edge 35 and the first fixing arm 31, so that when the wall boards are connected to both sides of the vibration-damping keel 3, a gap is provided between the supporting edge 35 and the second wall board 2 connected to the first fixing arm 31 (as shown in fig. 5), so that the vibration characteristics of the vibration-damping keel 3 under the action of sound waves are not affected by the arrangement of the supporting edge 35, and the sound insulation and noise reduction effects of the vibration-damping keel 3 are not affected.

In some exemplary embodiments, the distance B2 between the support edge 35 and the end surface of the first retaining arm 31 remote from the second retaining arm 32 is 3mm to 10 mm. In some exemplary embodiments, B2 may be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, and the like.

In an exemplary embodiment, the height B1 of the supporting edge 35 may be 20mm, and the height B of the vibration-damping keel 3 may be 25mm, so that the distance B2 between the supporting edge 35 and the end surface of the first fixing arm 31 remote from the second fixing arm 32 may be 5 mm.

In some exemplary embodiments, the angle β between the support edge 35 and the second securing arm 32 may be 70-160 °.

In some exemplary embodiments, as shown in fig. 1 and 2, the supporting edge 35 is a straight edge perpendicularly disposed with respect to the second fixing arm 32, i.e., the included angle β between the supporting edge 35 and the second fixing arm 32 is 90 °.

In some exemplary embodiments, as shown in fig. 3 and 4, the supporting edge 35 is an oblique edge disposed obliquely to the second fixing arm 32, and the included angle β between the supporting edge 35 and the second fixing arm 32 is an obtuse angle. In some exemplary embodiments, β may range from 100 ° to 160 °, such as 110 °, 120 °, 130 °, 140 °, 150 °, 153 °, 155 °, and so on.

In some exemplary embodiments, the supporting edge 35 is a bevel edge disposed obliquely to the second fixing arm 32, and the included angle β between the supporting edge 35 and the second fixing arm 32 is an acute angle. In some exemplary embodiments, β may range from 70 ° to 90 °, such as may be 75 °, 80 °, 85 °, and so forth.

In some exemplary embodiments, as shown in fig. 1 to 4, the end of the first fixing arm 31 remote from the second fixing arm 32 is provided with a bead 34, the bead 34 is bent toward the side where the second fixing arm 32 is located, and the height of the bead 34 is smaller than the height of the vibration-damping keel 3.

As shown in fig. 1 to 4, an end (left end in fig. 1 to 4) of the first fixing arm 31 remote from the second fixing arm 32 is provided with a curled edge 34, the curled edge 34 is bent toward a side (lower side in fig. 1 to 4) where the second fixing arm 32 is located, and a height B3 of the curled edge 34 is smaller than a height B of the vibration-damping keel 3.

The provision of the beads 34, similar to the ribs, ensures the rigidity of the vibration damper keel 3. The beads 34 cooperate with the support beads 35 to ensure that the vibration damper keel 3 has sufficient rigidity to support the wall panel. The height B3 of the curled edge 34 is less than the height B of the vibration-damping keel 3, so that when the two sides of the vibration-damping keel 3 are connected with the wall board, a gap is formed between the curled edge 34 and the first wall board 1 connected to the second fixing arm 32 (as shown in fig. 5), so that the arrangement of the curled edge 34 does not affect the vibration characteristics of the vibration-damping keel 3 under the action of sound waves, and the sound insulation and noise reduction effects of the vibration-damping keel 3 are not affected.

In some exemplary embodiments, the height B3 of the hem 34 may be less than the height B1 of the support rim 35. In an exemplary embodiment, the height B of the vibration dampening spine 3 may be 25mm, the height B1 of the support rim 35 may be 20mm, and the height B3 of the bead 34 may be 3.5 mm. In other exemplary embodiments, the height B3 of the hem 34 may be equal to or greater than the height B1 of the support rim 35.

In some exemplary embodiments, as shown in fig. 1-4, bead 34 is L-shaped. In other exemplary embodiments, the bead 34 may be arcuate, or may be in the shape of a vertical or beveled edge, etc.

In other exemplary embodiments, a bead 34 is provided at an end of the second fixing arm 32 remote from the first fixing arm 31, and a support edge 35 is provided at an end of the first fixing arm 31 remote from the second fixing arm 32; alternatively, a curled edge 34 is provided at both ends, or a support edge 35 is provided at both ends. When the two ends of the first fixing arm 31 and the second fixing arm 32, which are far away from each other, are provided with the curled edges, the distance between the curled edge provided on the second fixing arm 32 and the end face of the first fixing arm 31, which is far away from the second fixing arm 32, is 3mm-10 mm.

In some exemplary embodiments, as shown in fig. 1-4, the angle α between the connecting arm 33 and the first retaining arm 31 is 100 ° -160 °. Such as: the included angle α can be 110 °, 118 °, 120 °, 122 °, 125 °, 128 °, 130 °, 133 °, 135 °, 140 °, 145 °, 150 °, and so forth.

The included angle alpha between the connecting arm 33 and the first fixing arm 31 is set to be 100-160 degrees, the vibration reduction keel 3 is guaranteed to have enough elasticity and rigidity, the problem that the vibration reduction keel 3 is insufficient in elasticity and poor in sound insulation due to the fact that the angle alpha is too small is avoided, or the vibration reduction keel 3 is insufficient in rigidity due to the fact that the angle alpha is too large, and therefore a wallboard cannot be stably supported.

In some exemplary embodiments, the width a1 of the first securing arm 31 is different than the width a2 of the second securing arm 32. In one exemplary embodiment, as shown in fig. 2 and 4, the width a1 of the first securing arm 31 is less than the width a2 of the second securing arm 32.

In some exemplary embodiments, the width a1 of the first securing arm 31 is approximately equal to half the width a2 of the second securing arm 32.

In an exemplary embodiment, as shown in fig. 1 and 2, the width a of the vibration dampening keel 3 may be 90mm, the width a1 of the first securing arm 31 may be 23mm-27mm (e.g., may be 24mm), and the width a2 of the second securing arm 32 may be 50 mm.

In another exemplary embodiment, as shown in fig. 3 and 4, the width a of the vibration dampening keel 3 may be 130mm, the width a1 of the first securing arm 31 may be 23mm-27mm (e.g., may be 24mm), and the width a2 of the second securing arm 32 may be 50 mm.

As shown in fig. 5, when the vibration-damping keel 3 is used in a sound-proof wall, the first fixing arm 31 of the vibration-damping keel 3 is connected with the second wall board 2 at the inner side, and the second fixing arm 32 is connected with the first wall board 1 at the outer side. When the seam of two first wallboards 1 corresponds second fixed arm 32, need fix the flange limit of two first wallboards 1 simultaneously on second fixed arm 32, when the nailing is fixed, the screw is apart from the flange limit more than 10mm at least, if second fixed arm 32 is too narrow, just is not fixed two first wallboards 1 well. Therefore, the width a2 of second fixing arm 32 is set to be larger, so that nailing and fixing are facilitated on the plate edges of two first wall plates 1 at the joint of the two first wall plates 1.

In some exemplary embodiments, the first fixing arm 31 and the second fixing arm 32 are provided with screw fixing holes.

As shown in fig. 5-7, when the vibration-damping keel 3 is installed on a wall, the first fixing arm 31 and the second fixing arm 32 can be fixed with other parts of the wall (such as a wall board, a supporting keel 4, etc.) by using the screw 7.

In an exemplary embodiment, as shown in fig. 5, the vibration dampening keel 3 is connected between the first wall panel 1 and the second wall panel 2, the first fixing arm 31 is connected with the second wall panel 2 by a screw 7, and the second fixing arm 32 is connected with the first wall panel 1 by a screw 7. When the second fixed arm 32 of first wallboard 1 of screw 7 fixation and damping fossil fragments 3, second fixed arm 32 can elastic deformation under the thrust effect of screw 7, it moves towards second wallboard 2 to drive support limit 35, until the face butt of support limit 35 with second wallboard 2, can fix a position second fixed arm 32 this moment, screw 7 can be screwed to the screw fixed hole of second fixed arm 32 in, along with the tightening of screw 7, second fixed arm 32 resumes primitive state under the effect of self elasticity and screw, finally realize the fixed of second fixed arm 32 with first wallboard 1.

In another exemplary embodiment, during installation, a supporting block (e.g., a foam block) is filled between the second fixing arm 32 and the second wall panel 2, and the second fixing arm 32 is fixed to assist the second fixing arm 32 to fix with the first wall panel 1, so as to prevent the second fixing arm 32 from deforming and displacing under the action of the screw 7 when fixed with the first wall panel 1.

When adopting the supporting shoe to assist the installation, second fixed arm 32 need pull down the supporting shoe with first wallboard 1 is fixed the back, but the supporting shoe is dismantled the difficulty, and after beating the screw, the supporting shoe is difficult to take out completely, can weaken the elasticity of damping fossil fragments, reduces wall body sound insulation performance. And the second fixing arm 32 is positioned by the supporting edge 35 without the assistance of a supporting block, so that the fixing operation of the first wall board 1 is simple, and the assembly efficiency of the wall body is high.

In some exemplary embodiments, the width A of the vibration dampening keel is 50mm to 150 mm. In an exemplary embodiment, the width a of the vibration damper keel 3 as a whole may be 64mm or 90mm or 130 mm.

In some exemplary embodiments, the height B of the vibration dampening keel is 10mm to 50 mm. In an exemplary embodiment, the height B of the vibration damping keel 3 as a whole may be 15mm or 25 mm.

In some exemplary embodiments, the wall thickness of the vibration dampening keel 3 may be 0.4mm to 1 mm. In an exemplary embodiment, the wall thickness of the vibration damping keel 3 may be 0.6mm or 1 mm. The wall thickness of the vibration-damping keel 3 is not limited to 0.6mm or 1mm, and can be adjusted as required.

In some exemplary embodiments, the vibration-damping studs 3 are light gauge steel studs and may be made of galvanized steel strip.

In an exemplary embodiment, the width a of the vibration-damping keel 3 may be about 64mm, the height B may be 15mm, and the wall thickness may be 0.6mm, that is, the cross-sectional dimension of the vibration-damping keel 3 is 64 × 15 × 0.6 (referred to as 64 vibration-damping keel), the cross-sectional dimension is smaller, the wall thickness is thinner, and the vibration-damping keel 3 has good elasticity, so that the noise reduction function of the middle and low frequency noise can be enhanced. The wall thickness of the vibration reduction keel 3 is 0.6mm, and in order to enhance the noise reduction effect of the vibration reduction keel 3, the wall thickness of the vibration reduction keel 3 can be thinner under the condition of ensuring the use strength, so that the elasticity of the vibration reduction keel 3 is enhanced, and the capability of reducing noise at medium and low frequencies is enhanced. The better the elasticity of the vibration-damping keel 3 is, the better the sound-absorbing effect thereof on low frequencies is.

In an exemplary embodiment, the width a of the vibration damper keel 3 may be about 90mm, the height B may be 25mm, and the wall thickness 0.6mm, i.e., the cross-sectional dimension of the vibration damper keel 3 is 90 × 25 × 0.6.

In an exemplary embodiment, the width a of the vibration damper keel 3 may be about 130mm, the height B may be 25mm, and the wall thickness 0.6mm, i.e. the cross-sectional dimension of the vibration damper keel 3 is 130 × 25 × 0.6.

The embodiment of the application provides a sound insulation wall unit, as shown in fig. 5, which comprises a first wall panel 1, a second wall panel 2 and the above vibration damping keels 3, wherein the first wall panel 1 and the second wall panel 2 are connected through the vibration damping keels 3, and a first cavity 61 is formed between the first wall panel 1 and the second wall panel 2.

Damping fossil fragments 3 are "it" style of calligraphy damping fossil fragments 3, have better elasticity, connect first wallboard 1 and second wallboard 2 of "it" style of calligraphy damping fossil fragments 3 both sides be non-rigid connection, and during the wallboard of its one side (like first wallboard 1) vibration, be difficult for passing to the opposite side wallboard (like second wallboard 2) with the vibration to improve the sound insulation performance of sound insulation wall unit.

In addition, a first cavity 61 is formed between the first wall plate 1 and the second wall plate 2, and due to the action of an elastic layer of an air layer in the first cavity 61, similarly to the fact that a spring or a damper is added in the wall body, sound energy is attenuated due to the vibration of air, and the purpose of sound insulation is achieved; meanwhile, due to the addition of the air layer, sound waves can be converted among different media in the process of transmission, the reflection and attenuation of the sound waves are increased, the purposes of sound insulation and noise reduction are achieved, and the sound insulation performance of the sound insulation wall unit is improved.

Through the cooperation of damping fossil fragments 3 and first cavity 61, greatly improved sound insulation performance of sound insulation wall unit.

In some exemplary embodiments, as shown in fig. 5, the width of the first fixing arm 31 is smaller than the width a2 of the second fixing arm 32, the first wall panel 1 is located outside the second wall panel 2, and the first wall panel 1 is connected with the second fixing arm 32 of the vibration damping keel 3, and the second wall panel 2 is connected with the first fixing arm 31 of the vibration damping keel 3. In other exemplary embodiments, the first fixing arm 31 may be connected with the first wall panel 1 on the outside and the second fixing arm 32 provided with the supporting edge 35 may be connected with the second wall panel 2 on the inside.

In some exemplary embodiments, the first wall plate 1 and the second fixing arm 32 are connected by a screw 7, and the second wall plate 2 and the first fixing arm 31 are connected by a screw 7.

First wallboard 1 is located the outside of second wallboard 2, and when first wallboard 1 passed through screw 7 with the second fixed arm 32 of damping fossil fragments 3 fixed like this, first wallboard 1 and second fixed arm 32 were passed in proper order from the outside to screw 7, and the second fixed arm 32 can be fixed a position with second wallboard 2 cooperation to the last support edge 35 of second fixed arm 32, helps screw 7 to screw to the screw fixed of second fixed arm 32 downtheholely for screw 7 is fixed easy and simple to handle.

In some exemplary embodiments, the supporting edge 35 of the second fixing arm 32 has a gap with the second wall panel 2, and the gap is 3mm-12 mm.

Support and have the clearance between limit 35 and the second wallboard 2 for support limit 35 can not contact with second wallboard 2, does not influence the vibration characteristic of damping fossil fragments 3 under the sound wave effect, so that do not influence the sound insulation of damping fossil fragments 3, noise reduction effect. This clearance is 3mm-12mm, and when being convenient for first wallboard 1 and second fixed arm 32 pass through screw 7 to be connected, damping fossil fragments 3 can warp and make supporting edge 35 and second wallboard 2 cooperation location second fixed arm 32, the nailing operation of being convenient for.

In an exemplary embodiment, as shown in fig. 5, sound insulation strips 5 are arranged between the vibration-damping keel 3 and the first wall panel 1 and between the vibration-damping keel 3 and the second wall panel 2. Specifically, a sound insulation strip 5 is arranged between the second fixing arm 32 of the vibration reduction keel 3 and the first wall plate 1, and a sound insulation strip 5 is arranged between the first fixing arm 31 of the vibration reduction keel 3 and the second wall plate 2. The sound insulation strip 5 can be an elastic strip, such as a rubber strip, a nylon strip and the like, and can be stuck and fixed or formed by a damping sound insulation sealant.

The arrangement of the sound insulation strip 5 ensures that no hard connection (direct connection) exists between the vibration reduction keel 3 and the first wallboard 1 and between the vibration reduction keel 3 and the second wallboard 2, and the sound energy attenuation is enhanced through the sound insulation strip 5, so that the purpose of further sound insulation is achieved.

In some exemplary embodiments, a sound insulation strip 5 is disposed between the first fixing arm 31 of the vibration-damping keel 3 and the second wall board 2, and a gap between the supporting edge 35 of the second fixing arm 32 and the second wall board 2 is greater than a distance between the supporting edge 35 and an end face of the first fixing arm 31 far away from the second fixing arm 32. In some exemplary embodiments, the sound-proof strip 5 is not disposed between the first fixing arm 31 of the vibration-damping keel 3 and the second wall panel 2, and the gap between the supporting edge 35 of the second fixing arm 32 and the second wall panel 2 is equal to the distance between the supporting edge 35 and the end face of the first fixing arm 31 far away from the second fixing arm 32. Wherein, the thickness of the sound insulation strip 5 can be 2mm-5 mm.

The embodiment of the application provides a sound insulation wall, as shown in fig. 6, the sound insulation wall comprises a first wall unit 9, a second wall unit 10, a support keel 4 and vibration reduction keels 3, the vibration reduction keels 3 are fixed on two sides of the support keel 4, and the vibration reduction keels 3 on the two sides are respectively connected with the first wall unit 9 and the second wall unit 10.

The upper end and the lower end of the supporting keel 4 can be connected with the ceiling keel to support the sound insulation wall. The two sides of the supporting keel 4 are connected with vibration reduction keels 3, and the vibration reduction keels 3 can play a role in sound insulation and noise reduction.

In some exemplary embodiments, the ends of the vibration damping keel 3 are free ends.

One side (inboard) of damping fossil fragments 3 is connected with support fossil fragments 4, and opposite side (outside) is connected with first wall body unit 9 and the second wall body unit connection 10 of keeping away from support fossil fragments 4 respectively, and both ends are the free end, and then damping fossil fragments 3 realize the suspension setting on support fossil fragments 4. In other words, only one side (inner side) of the vibration-damping keel 3 is fixedly connected with a building wall (such as a ceiling, a floor, a side wall) or a structural member (such as a supporting keel, a ceiling keel), the other side (outer side) is connected with only the first wall unit 9 (or the first wall unit 9 and other wall units) or the second wall unit 10 (or the second wall unit 10 and other wall units), and both ends and the other side (outer side) have no structural member. The damping fossil fragments 3's that suspension set up home range is bigger, and elasticity is better, so it is better to the low frequency sound absorption. The better the elasticity of the vibration reduction keel 3 is, the sound insulation wall not only has obvious improvement on the sound insulation quantity of the low-frequency band, but also weakens the coincidence effect, and the weighted sound insulation quantity is larger.

In some exemplary embodiments, the vibration-damping keel 3 is arranged transversely or longitudinally or obliquely. The transverse direction is the direction parallel to the ground after the sound insulation wall body is installed, and the vertical direction is the direction perpendicular to the ground after the sound insulation wall body is installed.

The upper and lower both ends of the damping fossil fragments 3 of vertical setting can not be connected with world fossil fragments for damping fossil fragments 3 are the suspended state, and both ends are free. The left end and the right end of the vibration reduction keel 3 which is transversely arranged are not connected with the keel (such as the supporting keel 4) which is vertically arranged on the sound insulation wall body.

In some exemplary embodiments, the first wall element 9 and the second wall element 10 may comprise a single wall panel or may comprise multiple wall panels (two or more layers).

The embodiment of the application also provides a sound insulation wall body, as shown in fig. 7, the sound insulation wall body comprises a vertically arranged support keel 4 and sound insulation wall body units arranged on two sides of the support keel 4.

A first cavity 61 (two cavities) is formed between the adjacent first wall plate 1 and the second wall plate 2, a second cavity 62 is formed between the two second wall plates 2, so that three cavities are formed in the sound insulation wall body, three layers of air layers are added, and due to the action of an elastic layer of the air layers, the sound energy is attenuated due to the vibration of the air, and the sound insulation purpose is achieved; meanwhile, due to the addition of the air layer, sound waves can be converted among different media in the process of transmission, the reflection and attenuation of the sound waves are increased, the purposes of sound insulation and noise reduction are achieved, and the sound insulation performance of the wall body is greatly improved.

In some exemplary embodiments, the ends of the vibration damping keel 3 are free ends.

One side (inboard) of damping fossil fragments 3 is connected with second wallboard 2 or the support fossil fragments 4 that are close to support fossil fragments one side, and opposite side (outside) is connected with the first wallboard 1 of keeping away from support fossil fragments 4 one side, and both ends are the free end, and then the damping fossil fragments realize the suspension setting on supporting fossil fragments. In other words, only one side (inner side) of the vibration-damping keel is fixedly connected with a building wall (such as a ceiling, a floor and a side wall) or a structural member (such as a supporting keel and a ceiling keel), the other side (outer side) of the vibration-damping keel is only connected with the first wall plate 1 or the first wall plate 1 and other wall units, and both ends and the other side (outer side) of the vibration-damping keel do not have structural members. The range of the activity of the damping fossil fragments that the suspension set up is bigger, and elasticity is better, further promotes syllable-dividing effect.

In some exemplary embodiments, sound-proof strips 5 are provided between the vibration-damping keel 3 and the first wall panel 1, between the vibration-damping keel 3 and the second wall panel 2, and between the support keel 4 and the second wall panel 2.

The arrangement of the sound insulation strip 5 ensures that no hard connection (direct connection) exists between the vibration reduction keel 3 and the first wallboard 1, between the vibration reduction keel 3 and the second wallboard 2 and between the support keel 4 and the second wallboard 2, and the attenuation of sound energy is enhanced through the sound insulation strip 5, so that the purpose of further sound insulation is achieved.

In some exemplary embodiments, the first cavity 61 is filled with a sound absorbing material having a height smaller than that of the first cavity 61. Wherein the height of the sound absorbing material is 3mm to 10mm smaller than the height of the first cavity 61.

In some exemplary embodiments, the height of the vibration-damping keel is 25mm, the height of the first cavity 61 formed by the vibration-damping keel is 25mm, the height of the sound-absorbing material is 20mm, and the height of the sound-absorbing material which is 5mm is not filled in the first cavity 61, so that the sound-absorbing material cannot generate a sound bridge, and the sound insulation effect of the sound-insulating wall is improved.

In some exemplary embodiments, as shown in fig. 7, the sound-absorbing material 8 is filled in the second cavity 62, and the height of the sound-absorbing material 8 is smaller than the height of the second cavity 62, so that the sound-absorbing material 8 does not generate a sound bridge, and the sound insulation effect of the sound-insulating wall is improved.

In some exemplary embodiments, the sound absorbing material 8 is formed of a porous material such as glass wool or rock wool or ceramic wool.

In some exemplary embodiments, the first wall panel 1 and the second wall panel 2 may be single-layer wall panels, or multi-layer wall panels.

In some exemplary embodiments, the wall thickness of the vibration dampening keel 3 is less than the wall thickness of the support keel 4. In an exemplary embodiment, the wall thickness of the vibration damping keel 3 is 0.6mm and the wall thickness of the support keel 4 is 0.8 mm.

In some exemplary embodiments, the first wall panel 1 and the second wall panel 2 may be gypsum panels, such as: ordinary paper-faced gypsum board, fire-resistant gypsum board (such as glass fiber mat gypsum board), and the like; or a board made of other materials except gypsum board.

The sound insulation effect will be described below with reference to three wall structures.

1, a wall structure 1: sound insulation amount 1: rw (C; Ctr) 49 (-4; -12) dB

The construction method comprises the following steps: 9.5 thick (9.5mm thick, same below) ordinary gypsum plaster slab +12 thick ordinary gypsum plaster slab +75 light gauge steel (50mm thick rock wool is filled in) +12 thick ordinary gypsum plaster slab +9.5 thick ordinary gypsum plaster slab

Secondly, the wall structure 2: sound insulation amount 2: rw (C; Ctr) is 53dB

The construction method comprises the following steps: 9.5 thick common thistle board +12 thick common thistle board + Z type 75 fossil fragments (fill 50 thick rock wool) +12 thick common thistle board +9.5 thick common thistle board

Wall structure 3: sound insulation amount 3: rw (C; Ctr) 52 (-2; -8) dB

The construction method comprises the following steps: 9.5 thick ordinary gypsum plaster board +12 thick ordinary gypsum plaster board +64 vibration-damping keel +75 light gauge steel (filled with 50 thick rock wool) +64 vibration-damping keel +12 thick ordinary gypsum plaster board +9.5 thick ordinary gypsum plaster board (the wall structure is similar to the structure shown in FIG. 6, except that the first and second wall panels are formed by 9.5 and 12 thick two layers of gypsum boards)

TABLE 1

It can be seen from table 1 that, compared with the common C-shaped light steel keel, the Z-shaped keel and the vibration damping keel are used, which have a very obvious noise reduction effect on middle and low frequency noise, especially below 1000Hz (hertz).

Generally, the low-frequency sound insulation of a light wall is poor, and the main reason is that the wall board is light and is difficult to block low-frequency sound with large vibration amplitude and long wavelength. The Z-shaped keel and the vibration reduction keel are used, so that the defect that a gypsum board wall body using the light steel keel is poor in low-frequency sound insulation performance can be overcome.

As can be seen from the table 1, the sound absorption and noise reduction effects of the vibration reduction keel are better than those of the Z-shaped keel in the low frequency range, namely between 125Hz and 315Hz, and the condition that the noise reduction effect of the Z-shaped keel in the low frequency range is not ideal can be compensated. The sound insulation wall body using the vibration reduction keel has good sound absorption and noise reduction effects in a low-frequency range, and reduces the pollution of low-frequency noise such as a motor and a fan.

As can be seen from the table 1, the Z-shaped keel and the vibration reduction keel are used, so that the sound absorption and noise reduction effects are good at medium and high frequencies. Under the condition that gypsum boards of the same type and rock wool of the same height are used, compared with the traditional C-shaped light steel keel, the sound insulation performance of the wall is improved by using the Z-shaped keel and the vibration reduction keel, the sound insulation quantity of the wall using the Z-shaped keel is improved by 3dB (decibel), and the sound insulation quantity of the wall using the vibration reduction keel is improved by 2 dB.

Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.