Acoustic board

Abstract

The acoustic board comprises a board body, a top board, a bottom board and a clamping piece, a vertically-through cavity is formed in the board body, the top board is arranged on the upper portion in the cavity in a sliding mode, the bottom board is arranged on the lower portion in the cavity in a sliding mode, and the top board and the bottom board are used for extending the surface area of the board body. The plate body is provided with two groups of clamping pieces, the two groups of clamping pieces are respectively arranged at the top and the bottom of one side of the plate body, the two groups of clamping pieces are respectively matched with the top plate and the bottom plate, and the clamping pieces are used for fixing the top plate and the bottom plate. The barriers are arranged at the top and the bottom of the acoustic board, and the overall sound blocking and absorbing effect can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sound-absorbing panels, in particular to a sound-absorbing panel. Background Art

[0002] Generally, transparent partitions are installed on both sides of urban viaducts. The main function of the partitions is to block the propagation of sound, reflect and absorb most of the sound energy, and only allow part of the sound energy to diffract through, forming an acoustic shadow area behind the barrier, thereby reducing noise and reducing the impact of vehicle noise on nearby residents.

[0003] For example, Chinese utility model patent publication number CN217944576U discloses a micro-perforated transparent sound-absorbing panel for railways. This panel comprises three layers of panels, with the sound-absorbing holes on each layer interconnected and staggered, extending the sound absorption path and providing a diversion channel with a variable diameter. This allows for multiple reflections, absorption, and consumption of sound, effectively enhancing the sound absorption effect. The three layers of panels are stacked and snap-fitted together for easy assembly. Quick positioning is achieved through the use of plug-in blocks and slots, simplifying the production and assembly process.

[0004] In actual operation, the above-mentioned sound-absorbing panel diffuses outwards, and the sound-absorbing panel is formed by overlapping three layers of sound-absorbing panels without barriers at the top and bottom of the panel. As a result, noise waves pass through the top and bottom where no barriers are set, resulting in limited sound absorption and sound insulation of the panel, and thus poor sound absorption and sound insulation effect of the panel. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and to provide a sound absorbing panel to solve the technical problem of poor sound insulation and sound absorption effects in the prior art.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] The utility model provides a sound-absorbing plate, comprising a plate body, a top plate, a bottom plate and a retaining member, wherein a cavity penetrating from top to bottom is opened in the plate body, the top plate is slidably arranged in the upper part of the cavity, the bottom plate is slidably arranged in the lower part of the cavity, the top plate and the bottom plate are used to extend the surface area of ​​the plate body, the retaining member is provided with two groups, the two groups of retaining members are respectively arranged at the top and bottom of one side of the plate body, the two groups of retaining members are respectively adapted to the top plate and the bottom plate, and the retaining member is used to fix the top plate and the bottom plate.

[0008] In some embodiments, a sealing ring is provided on the bottom end of the top plate and the top end of the bottom plate, and the sealing ring is slidably connected to the inner wall of the cavity.

[0009] In some embodiments, the locking parts include two pressure plates, two fixing seats and two clamping rods, one end of the two pressure plates is rotatably connected to the middle of the two fixing seats respectively, a receiving groove is provided at the bottom of the pressure plate, and one end of the clamping rod is rotatably connected to the inner wall of the receiving groove.

[0010] In some embodiments, two groups of rectangular grooves are provided on the top and bottom of one side of the plate body, and the two groups of fixing seats are respectively fixedly installed on the outside of the two groups of rectangular grooves. The top plate and the bottom plate are provided with serrated grooves on one side close to the rectangular grooves, and the ends of the two groups of clamping rods away from the pressure plate are respectively adapted to the two groups of slots.

[0011] In some embodiments, a plurality of clamping holes are opened in the middle of one side of the top plate and the bottom plate, and screws are threadedly connected to the top and bottom of one side of the plate body respectively, and one end of the screw is adapted to the clamping hole.

[0012] In some embodiments, the top of the plate body is curved, and the curvature of the top plate is the same as the curvature of the curved portion of the top of the plate body.

[0013] In some embodiments, the top of the top plate away from the card slot and the bottom of the bottom plate away from the card slot are both fixedly connected to a silencer plate, and the projected areas of the two silencer plates are the same as the projected areas of the top plate and the bottom plate, respectively.

[0014] In some embodiments, a plurality of sound-absorbing grooves are provided on one side of the two muffler plates away from the plate body.

[0015] In some embodiments, a rectangular through hole is opened outward from the middle of the cavity, and a transparent plate is provided in each of the two rectangular through holes.

[0016] In some embodiments, a mounting plate is provided on one side of the bottom of the base plate.

[0017] Compared with the prior art, the sound-absorbing panel provided by the present invention achieves the purpose of improving the sound insulation and sound absorption effects by providing a panel body, a top panel, a bottom panel and a retaining member. During specific operation, after the panel body is moved to an appropriate position, the top panel and the bottom panel are respectively extended upward or downward within the panel body to the maximum external area, and the top panel and the bottom panel are fixed by the retaining member, so that barriers are provided on the top and bottom of the sound-absorbing panel, thereby ensuring the overall sound insulation and sound absorption effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a sound-absorbing panel provided by an embodiment of the utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of a sound-absorbing panel provided by an embodiment of the utility model. Figure 2;

[0020] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0021] Figure 4 yes Figure 2 Schematic diagram of the side cross-sectional structure.

[0022] Explanation of the reference numerals: 100, plate body; 110, cavity; 111, rectangular through hole; 112, transparent plate; 120, rectangular groove; 200, top plate; 210, sealing ring; 300, bottom plate; 310, clamping hole; 320, screw; 400, clamping member; 410, pressure plate; 411, storage groove; 420, fixing seat; 430, clamping rod; 440, clamping groove; 500, sound-absorbing plate; 510, sound-absorbing groove; 600, mounting plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] In order to solve the technical problem of poor sound insulation and sound absorption effects, the utility model provides a sound absorbing plate that can achieve better sound insulation and sound absorption effects.

[0025] It should be noted that the sound-absorbing panel described in the present invention is used for but not limited to sound-absorbing panels, etc. For the sake of convenience, in the present invention, only one sound-absorbing panel is used for a sound-absorbing panel as an example for explanation. The principle of using a sound-absorbing panel in other types of equipment is essentially the same as that of the sound-absorbing panel, and will not be described in detail here.

[0026] See also Figure 1 - Figure 4 ,in, Figure 1 Schematic diagram of the structure of a sound-absorbing panel in one embodiment of the present invention, comprising a panel body 100, a top panel 200, a bottom panel 300, and a retaining member 400. A cavity 110 extending vertically is defined in the panel body 100. The top panel 200 is slidably disposed in the upper portion of the cavity 110, and the bottom panel 300 is slidably disposed in the lower portion of the cavity 110. The top panel 200 and the bottom panel 300 are used to extend the surface area of ​​the panel body 100. Two groups of retaining members 400 are provided, and the two groups of retaining members 400 are respectively adapted to the top panel 200 and the bottom panel 300. The retaining members 400 are used to fix the top panel 200 and the bottom panel 300.

[0027] In this embodiment, when in use, the plate body 100 is moved to a suitable position, and then the top plate 200 and the bottom plate 300 are respectively extended upward or downward within the plate body 100 to the maximum external area, and the top plate 200 and the bottom plate 300 are fixed by the retaining member 400, so that barriers are provided at the top and bottom of the sound-absorbing panel, thereby ensuring the overall sound insulation and sound absorption effect.

[0028] In one embodiment, see Figure 2 、 Figure 4 The bottom end of the top plate 200 and the top end of the bottom plate 300 are both sleeved with a sealing ring 210, and the sealing ring 210 is slidably connected to the inner wall of the cavity 110;

[0029] In this embodiment, the air content inside the cavity 110 is kept at a relatively low state. When the top plate 200 and the bottom plate 300 extend away from each other, the volume of the cavity 110 becomes larger, and the air density drops relatively to a lower level and approaches a vacuum state. At this time, the top plate 200 and the bottom plate 300 will be subjected to the negative pressure generated by the drop in air pressure in the cavity 110. At this time, the retaining member 400 cooperates with the negative pressure to fix the top plate 200 and the bottom plate 300, thereby ensuring stability and preventing noise waves from easily penetrating the cavity 110.

[0030] In one embodiment, see Figure 2 - Figure 4 The clamping member 400 includes two pressing plates 410, two fixing seats 420 and two clamping rods 430. One end of the two pressing plates 410 is rotatably connected to the middle of the two fixing seats 420. The bottom of the pressing plate 410 is provided with a receiving groove 411. One end of the clamping rod 430 is rotatably connected to the inner wall of the receiving groove 411. Two sets of rectangular grooves 120 are provided on the top and bottom of one side of the plate body 100. The two sets of fixing seats 420 are fixedly installed on the two sets of rectangular grooves 120. On the outside of the groove 120, a serrated groove 440 is provided on one side of the top plate 200 and the bottom plate 300 close to the rectangular groove 120, and one end of the two groups of the clamping rods 430 away from the pressure plate 410 is respectively adapted to the two groups of the clamping grooves 440, and a plurality of clamping holes 310 are provided in the middle of one side of the top plate 200 and the bottom plate 300, and screws 320 are respectively threadedly connected to the top and bottom of one side of the plate body 100, and one end of the screw 320 is adapted to the clamping hole 310.

[0031] In this embodiment, during operation, one end of the pressing plate 410 is rotatably connected to one side of the plate body 100. For example, when the bottom plate 300 is extended, the portion of the bottom plate 300 in the plate body 100 is subjected to the negative pressure of the cavity 110, and as the bottom plate 300 moves outward, the negative pressure in the cavity 110 gradually increases. Therefore, the pressing plate 410 can be rotated counterclockwise, and the clamping rod 430 falls clockwise under gravity and makes its bottom end fit into the clamping groove 440 of the bottom plate 300. Then, the pressing plate 410 is pressed down to rotate clockwise, and the pressing plate 410 pushes the bottom plate 300 downward by driving the clamping rod 430, and then, the same operation is performed on the other pressure plate 410. The two operations are alternated until the bottom plate 300 is extended to the maximum length. At this time, the two pressure plates 410 are rotated clockwise until they contact the bottom plate 300, so that the clamping rod 430 is received in the receiving groove 411, and then the screw 320 is screwed in to further fix the bottom plate 300 and the plate body 100. At the same time, the extension operation of the top plate 200 is the same as the operation steps of the bottom plate 300, and the operation can be mirrored.

[0032] In one embodiment, see Figure 2 - Figure 4 The top of the plate body 100 is curved, and the curvature of the top plate 200 is the same as the curvature of the curved portion of the top of the plate body 100. A muffler plate 500 is fixedly connected to the top of the top plate 200 away from the slot 440 and the bottom of the bottom plate 300 away from the slot 440. The projected areas of the two muffler plates 500 are the same as the projected areas of the top plate 200 and the bottom plate 300, respectively. A plurality of sound-absorbing grooves 510 are provided on the side of the two muffler plates 500 away from the plate body 100.

[0033] In this embodiment, the top plate 200 and the bottom plate 300 are both provided with a sound-absorbing plate 500 on the sound-absorbing side. The sound-absorbing side of the sound-absorbing plate 500 has a sound-absorbing groove 510 for disrupting and absorbing noise waves. The sound-absorbing plate 500 can move together with the top plate 200 and the bottom plate 300, thereby ensuring the sound-absorbing effect of the top plate 200 and the bottom plate 300.

[0034] In one embodiment, see Figure 2 , a rectangular through hole 111 is opened outward from the middle of the cavity 110, and a transparent plate 112 is provided in each of the two rectangular through holes 111;

[0035] In this embodiment, the transparent plate 112 is used to improve the aesthetics of the sound absorbing panel so that it can be better integrated into the working scene.

[0036] In one embodiment, see Figure 1 A mounting plate 600 is provided on one side of the bottom of the base plate 300 .

[0037] In order to better understand the present invention, the following Figures 1 to 4The technical solution of the present invention is described in detail: when in use, the air content in the cavity 110 is kept at a relatively low state. When the top plate 200 and the bottom plate 300 are extended away from each other, the volume of the cavity 110 becomes larger, and the air density drops relatively to a lower level and approaches a vacuum state. At this time, the top plate 200 and the bottom plate 300 will be subjected to the negative pressure generated by the drop in air pressure in the cavity 110. If the bottom plate 300 is extended, the pressing plate 410 can be rotated counterclockwise with the connection point with the plate body 100 as the center of the circle. The clamping rod 430 falls clockwise under gravity and makes its bottom end fit into the clamping groove 440 of the bottom plate 300, and then the pressing plate 410 is pressed down. Make it rotate clockwise, the pressure plate 410 drives the clamping rod 430 to push the bottom plate 300 downward and hold it, then, operate the other pressure plate 410 in the same way, and the two are operated alternately until the bottom plate 300 is extended to the maximum length. At this time, the two pressure plates 410 are rotated clockwise until they contact the bottom plate 300, so that the clamping rod 430 is received in the receiving groove 411, and then the screw 320 is screwed in to further fix the bottom plate 300 and the plate body 100. At the same time, the extension operation of the top plate 200 is the same as the operation steps of the bottom plate 300, and the operation can be mirrored. Barriers are provided on the top and bottom of this sound-absorbing panel to ensure the overall sound insulation and sound absorption effect.

[0038] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A sound-absorbing panel, characterized in that: include: A plate body, wherein a cavity is formed in the plate body and passes through the plate body from top to bottom; a top plate, the top plate being slidably disposed in an upper portion of the cavity; A bottom plate, the bottom plate being slidably disposed in the lower portion of the cavity, and the top plate and the bottom plate being used to extend the surface area of ​​the plate body; as well as The clamping parts are provided with two groups, and the two groups of the clamping parts are respectively arranged at the top and bottom of one side of the plate body. The two groups of the clamping parts are respectively adapted to the top plate and the bottom plate, and the clamping parts are used to fix the top plate and the bottom plate.

2. The sound absorbing panel according to claim 1, characterized in that: The bottom end of the top plate and the top end of the bottom plate are both sleeved with sealing rings, and the sealing rings are slidably connected to the inner wall of the cavity.

3. The sound absorbing panel according to claim 1, characterized in that: The clamping member includes two pressure plates, two fixing seats and two clamping rods. One end of the two pressure plates is rotatably connected to the middle of the two fixing seats respectively. A receiving groove is provided at the bottom of the pressure plate, and one end of the clamping rod is rotatably connected to the inner wall of the receiving groove.

4. The sound absorbing panel according to claim 3, characterized in that: Two groups of rectangular grooves are provided on the top and bottom of one side of the plate body, and the two groups of fixing seats are respectively fixedly installed on the outside of the two groups of rectangular grooves. The top plate and the bottom plate are provided with serrated grooves on one side close to the rectangular grooves, and the ends of the two groups of card rods away from the pressure plate are respectively adapted to the two groups of card grooves.

5. The sound absorbing panel according to claim 4, characterized in that: A plurality of clamping holes are provided in the middle of one side of the top plate and the bottom plate, and screws are respectively threadedly connected to the top and bottom of one side of the plate body, and one end of the screw is adapted to the clamping hole.

6. The sound absorbing panel according to claim 4, characterized in that: The top of the plate body is curved, and the curvature of the top plate is the same as the curvature of the curved portion of the top of the plate body.

7. The sound absorbing panel according to claim 4, characterized in that: The top of the top plate away from the card slot and the bottom of the bottom plate away from the card slot are both fixedly connected with silencer plates, and the projected areas of the two silencer plates are respectively the same as the projected areas of the top plate and the bottom plate.

8. The sound absorbing panel according to claim 7, characterized in that: A plurality of sound absorbing grooves are provided on one side of the two sound-absorbing plates away from the plate body.

9. The sound absorbing panel according to claim 1, characterized in that: A rectangular through hole is opened outward from the middle of the cavity, and a transparent plate is arranged in each of the two rectangular through holes.

10. The sound absorbing panel according to claim 1, characterized in that: A mounting plate is provided on one side of the bottom of the base plate.

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