A sound-absorbing panel and a manufacturing process thereof

Abstract

The application discloses a sound-absorbing plate and a manufacturing process thereof, and relates to the field of sound-absorbing plates. The sound-absorbing plate comprises a sound-absorbing hole plate and sound-absorbing material arranged in the sound-absorbing hole plate. Four surrounding plates are formed by bending and shaping around the sound-absorbing hole plate. An installation area is formed among the four surrounding plates, and the sound-absorbing material is arranged in the installation area. The sound-absorbing material is a light sparite plate and is in a honeycomb shape. The application realizes the multifunctionality of the sound-absorbing plate.

Description

Technical Field

[0001] This application relates to the field of sound-absorbing panels, and more particularly to a sound-absorbing panel and its manufacturing process. Background Technology

[0002] Currently, sound-absorbing panels are used for sound insulation on exterior walls, interior walls, and along highways. They are widely used in walls for noise reduction and protection.

[0003] However, current wall structures not only need to reduce noise, but also need to block the penetration of water, heat, and air, while also withstanding physical damage from water, fire, wind, and earthquakes. Existing wall structures will incorporate multi-layered wall panel structures before and after the sound-absorbing panels to address these issues.

[0004] Existing sound-absorbing panels typically employ multiple sound-absorbing holes to refract, reflect, and scatter sound, thereby reducing sound wave energy and achieving noise reduction. Currently, most sound-absorbing panels are designed solely for sound absorption, making their function relatively singular. Summary of the Invention

[0005] To achieve the multi-functionality of the sound-absorbing panel, this application provides a sound-absorbing panel and its manufacturing process.

[0006] The sound-absorbing panel and its manufacturing process provided in this application adopt the following technical solution: A sound-absorbing panel includes a perforated sound-absorbing plate and a sound-absorbing material disposed within the perforated sound-absorbing plate. The perforated sound-absorbing plate has four surrounding plates bent around its perimeter, and an installation area is formed between the four surrounding plates. The sound-absorbing material is disposed within the installation area. The sound-absorbing material is a lightweight crystalline stone plate and is honeycomb-shaped.

[0007] By adopting the above technical solution, the sound-absorbing panel is composed of a perforated sound-absorbing plate and a lightweight crystal stone plate. The numerous pores in the perforated sound-absorbing plate serve to reduce noise. The lightweight crystal stone plate is a material made primarily from silicon-based solid waste, sintered at high temperatures. It not only has noise reduction and sound absorption functions but also blocks the penetration of water, heat, and air, and is resistant to physical damage from water, fire, wind, and earthquakes. It is a new type of building material. Its use in the sound-absorbing panel gives it multiple functions beyond sound absorption. During wall construction, using this sound-absorbing panel can meet various wall requirements, reduce the use of other materials, and make the overall construction simpler and faster. In practice, the lightweight crystal stone plate is placed in the center of the perforated sound-absorbing plate, and then the four sides of the perforated sound-absorbing plate are bent using a bending device to form four surrounding plates, which clamp the perforated sound-absorbing plate, thus achieving the forming of the perforated sound-absorbing panel.

[0008] Preferably, each of the enclosure panels has a first connecting plate at one end and a second connecting plate at the other end. The length direction of the first connecting plate is consistent with the length direction of the enclosure panel to which it is connected, and the length direction of the second connecting plate is consistent with the length direction of the enclosure panel to which it is connected. The first connecting plate has multiple insertion holes along its length direction, and the second connecting plate has multiple rubber protrusions along its length direction. The number of rubber protrusions is the same as the number of insertion holes. When two sound-absorbing panels are connected, all the corresponding rubber protrusions and all the insertion holes correspond one-to-one and are inserted into each other.

[0009] By adopting the above technical solution, all enclosure panels are equipped with a first connecting plate and a second connecting plate. The first connecting plate has multiple insertion holes, and the second connecting plate has multiple rubber protrusions. During wall construction, each sound-absorbing panel usually needs to be dry-hung onto the supporting frame using back bolts. During the connection process, construction workers need to hold the sound-absorbing panel with one hand while using the other hand to tighten the bolts. Moreover, the sound-absorbing panel often tilts during the tightening process, causing some installation trouble. In this application, adjacent sound-absorbing panels can be connected by corresponding rubber protrusions and insertion holes one by one. Whether connecting two sound-absorbing panels horizontally or vertically, they can be pre-fixed in this way. Then, they can be connected to the supporting frame for quick and efficient installation of the sound-absorbing panels. In addition, the connection between adjacent sound-absorbing panels through the first and second connecting plates can improve the structural strength of the entire sound-absorbing wall after the wall construction is completed.

[0010] Preferably, all the insertion holes on the first connecting plate gradually decrease in size along the direction away from the enclosure plate, and all the rubber protrusions on the second connecting plate gradually increase in size along the direction away from the enclosure plate.

[0011] By adopting the above technical solution, the insertion holes on the first connecting plate become smaller along the direction away from the enclosure plate, and the corresponding rubber protrusions on the second connecting plate gradually become larger along the direction away from the enclosure plate. Therefore, when adjacent sound-absorbing plates are connected, the size of all the rubber protrusions on the second connecting plate will correspond to the size of all the insertion holes and fit together to form an interference fit. When two adjacent sound-absorbing plates are connected, taking two horizontal directions as an example, when the first connecting plate of one sound-absorbing plate is connected to the second connecting plate of another sound-absorbing plate, there will be a relative sliding process. At this time, the outermost rubber protrusion on the second connecting plate will... The outermost insertion hole on the first connecting plate is now in contact. However, since the outermost rubber protrusion is the largest and the outermost insertion hole is the smallest, the outermost rubber protrusion will not be inserted into the insertion hole. This ensures the relative sliding of the two sound-absorbing plates until the outermost rubber protrusion connects with the innermost insertion hole. At this point, all rubber protrusions are engaged with the corresponding sized insertion holes, thus achieving the pre-fixation of the two sound-absorbing plates. In this way, to prevent the rubber protrusions from prematurely inserting into the front insertion hole, which would affect the relative sliding of the two sound-absorbing plates and thus affect the pre-fixation efficiency of the two sound-absorbing plates, the pre-fixation efficiency of the two sound-absorbing plates is ensured.

[0012] Preferably, the first connecting plate has a movable groove, which is located on the side of the first connecting plate where the smallest insertion hole is furthest from the largest insertion hole, and the movable groove is connected to the smallest insertion hole on the first connecting plate; all the insertion holes on the first connecting plate are connected to each other through connecting grooves.

[0013] By adopting the above technical solution, if there is a certain error in the overall size of the wall after all the sound-absorbing panels are connected together to form a sound-absorbing wall, the area of ​​the sound-absorbing wall needs to be adjusted appropriately. At this time, the sound-absorbing panels can be pulled to increase the distance between adjacent sound-absorbing panels to match the required wall area. Finally, building materials are filled into the gaps between the sound-absorbing panels to achieve sealing and waterproofing. When the sound-absorbing panels are pulled, the rubber ridges will slide in the connecting grooves, and the smallest rubber ridge will move into the movable groove. As the rubber ridges move towards the smaller insertion hole side during the pulling process, the connection between adjacent sound-absorbing panels will be more secure during the pulling process.

[0014] Preferably, the four enclosure panels are two first enclosure panels and two second enclosure panels, with the two first enclosure panels facing each other and the two second enclosure panels facing each other. One of the first enclosure panels is provided with a plug-in plate, and the lightweight crystal plate is provided with a plug-in groove, with the plug-in plate and the plug-in groove being plugged in and engaged.

[0015] By adopting the above technical solution, the insertion plate of the first enclosure plate and the insertion groove of the light crystal plate are used to connect and cooperate, which helps to improve the connection strength between the sound-absorbing perforated plate and the light crystal plate. In the process of forming the sound-absorbing plate, the first enclosure plate at this location is first bent, and the light crystal plate is inserted and cooperated with the insertion plate of the first enclosure plate. Then, the remaining three enclosure plates are bent to realize the forming of the sound-absorbing plate.

[0016] Preferably, the plug plate has a lifting groove, and the plug plate is positioned within the lifting groove to lift and lower a clamping block for pressing against the inner wall of the plug groove. The surface of the clamping block has a plurality of abutting teeth. The plug plate also has a moving groove, the length direction of which is perpendicular to the length direction of the lifting groove. The plug plate is slidably connected to a moving block within the moving groove. A first wedge-shaped surface is formed on the moving block, and a second wedge-shaped surface is provided on the lower side of the clamping block. The first wedge-shaped surface and the second wedge-shaped surface are adapted to each other. A first sliding hole and a second sliding hole are provided on the first enclosure plate connected to the plug-in plate. The length direction of the first sliding hole is parallel to the length direction of the moving groove, and the length direction of the second sliding hole is perpendicular to the length direction of the first sliding hole. One end of the second sliding hole is connected to the first sliding hole, and the other end of the second sliding hole is connected to the moving groove. A first push block is slidably disposed in the first sliding hole, and a second push block is slidably disposed in the second sliding hole. The first push block is provided to protrude from the surface of the first enclosure plate. The end of the first push block located in the first sliding hole forms a third wedge-shaped surface. One end of the second push block forms a fourth wedge-shaped surface, and the other end of the second push block forms a fifth wedge-shaped surface. The third wedge-shaped surface and the fourth wedge-shaped surface are adapted to each other. The end of the moving block near the second sliding hole forms a sixth wedge-shaped surface, and the fifth wedge-shaped surface and the sixth wedge-shaped surface are adapted to each other. When the lightweight crystal plate is inserted into the plug plate, the lightweight crystal plate abuts against the first push block. The first push block slides into the first sliding hole, which drives the second push block to slide in the direction of the moving groove. The second push block drives the moving block to slide, and the moving block drives the pressing block to slide and press against the lightweight crystal plate.

[0017] By adopting the above technical solution, during the insertion process of the lightweight crystal slab and the insertion plate, the lightweight crystal slab will contact the first push block. The first push block, through the cooperation of the third wedge surface and the fourth wedge surface of the second push block, causes the second push block to slide towards the moving groove. The second push block, through the cooperation of the fifth wedge surface and the sixth wedge surface of the moving block, causes the moving block to slide. The moving block, through the cooperation of the first wedge surface and the second wedge surface of the abutment block, causes the abutment block to protrude from the lifting groove and abut against the inner wall of the lightweight crystal slab insertion groove, thereby fixing the lightweight crystal slab. Since bending is required later, this prevents the lightweight crystal slab from moving relative to the insertion plate due to equipment vibration or bending, which would affect subsequent operations.

[0018] Preferably, each of the second enclosure plates is provided with hook teeth, which are arc-shaped and gradually decrease in size along the direction away from the second enclosure plate. The end of the hook tooth away from the second enclosure plate is sharp. The center of curvature of the hook tooth is located on the bending axis of the second enclosure plate. The two hook teeth are located on both sides of the insertion plate. Hook grooves are provided on both sides of the lightweight crystal plate. The shape of the hook grooves matches the shape of the hook teeth. The center of curvature of the hook grooves is located on the bending axis of the second enclosure plate. The two hook teeth and the two hook grooves correspond one-to-one, and the hook teeth and the corresponding hook grooves hook into each other.

[0019] By adopting the above technical solution, the hook teeth on the two second enclosure plates and the hook groove on the light crystal plate are hooked together, which helps to improve the connection strength between the light crystal plate and the sound-absorbing perforated plate. In the process of making the sound-absorbing plate, the first enclosure plate with the plug plate is bent first, and the light crystal plate and the plug plate are plugged together. Then, the two second enclosure plates are bent. During the bending process, since the curvature centers of the hook groove and the hook teeth are both located on the bending axis of the second enclosure plate, the hook teeth will gradually plug into the hook groove during the bending process of the second enclosure plate.

[0020] Preferably, the second enclosure plate is provided with a sliding groove, and the hook tooth is slidably connected in the sliding groove. The length direction of the sliding groove is parallel to the width direction of the second enclosure plate, and the second enclosure plate is provided with a first spring in the sliding groove. The length direction of the first spring is parallel to the length direction of the sliding groove. One end of the first spring is connected to the inner wall of the sliding groove, and the other end of the first spring is connected to the hook tooth.

[0021] By adopting the above technical solution, if there is a certain error in the height of the hook groove during molding, the hook tooth cannot match the position of the hook groove. During the bending process of the second enclosure plate, the tip of the hook tooth will enter the hook groove first. Even if there is a certain error, the tip of the hook tooth can still enter the hook groove. Subsequently, during the hook tooth and hook insertion process, the height of the hook tooth can be appropriately changed by the first spring to ensure that the hook tooth can be fully inserted into the hook groove.

[0022] Preferably, the second enclosure plate is slidably connected to a sliding block within a sliding groove. The first spring is connected to the sliding block. The hook tooth is disposed on the sliding block. An installation groove is formed within the sliding block. A second spring is disposed within the installation groove of the sliding block. A plug-in post is disposed at one end of the hook tooth near the sliding block. The plug-in post and the installation groove are plugged into each other. A limit plate is disposed at the end of the plug-in post away from the hook tooth. One end of the second spring is connected to the limit plate, and the other end of the second spring is connected to the bottom wall of the installation groove. A limit surface is formed on the side of the installation groove near the hook tooth. The limit plate and the limit surface abut against each other to limit the hook tooth and prevent it from detaching.

[0023] By adopting the above technical solution, if there is an error during the bending process of the second enclosure plate, causing the bending axis of the second enclosure plate to deviate, there will be an error in height and width between the hook teeth and the hook groove after bending. The height error has been resolved by the first spring, and the width error will be resolved by the action of the second spring, whereby the hook teeth will fit into the hook groove. When there is no error in the bending axis, the hook teeth and hook groove are inserted, which will compress the second spring, making the hook teeth and hook groove fit together.

[0024] A manufacturing process for a sound-absorbing panel includes the following steps: S1: Process and shape sound-absorbing perforated plates and lightweight crystal slabs; S2: Bend one side of the sound-absorbing perforated plate; S3: Place the light crystal slab in the middle of the sound-absorbing perforated plate; S4: Bend the other three sides of the sound-absorbing perforated plate.

[0025] By adopting the above technical solution, the sound-absorbing perforated plate and the light crystal stone plate are first processed. One side of the sound-absorbing perforated plate is bent at 90 degrees, and then the light crystal stone plate is placed in the middle of the sound-absorbing perforated plate. Then the other three sides of the sound-absorbing perforated plate are bent at 90 degrees, so that the light crystal stone plate can be surrounded in it to form a sound-absorbing plate.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. Using light crystal stone as a sound-absorbing material, the honeycomb structure formed by the light crystal stone not only has the function of sound absorption, but also has the function of blocking the physical penetration of water, heat and air and resisting the physical damage of water, fire, wind and earthquake. It combines multiple functions and can reduce the use of other boards when constructing walls, making the construction of walls simpler and faster. 2. When constructing the wall, all sound-absorbing panels need to be installed on the support frame by back bolt dry hanging. By using all the plug holes on the first connecting plate and all the rubber protrusions on the second connecting plate, the pre-fixation between adjacent sound-absorbing panels can be achieved, which makes it easy for construction personnel to quickly connect the sound-absorbing panels and the support frame. 3. The use of hook teeth on the second enclosure plate and hook grooves on the light crystal plate for interlocking helps to improve the structural strength of the sound-absorbing plate. Under the action of the first and second springs, the position of the hook teeth can be adjusted appropriately. Even if there is an error in the hook groove or an error in the bending axis during bending, the hook teeth can always be inserted and fixed with the hook groove. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2This is another perspective view of the overall structure of Embodiment 1 of this application, mainly showing the structure of the lightweight crystalline stone slab; Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this application; Figure 4 for Figure 3 A magnified view of part A in the image; Figure 5 This is a schematic diagram of the connection of multiple sound-absorbing plates in Embodiment 2 of this application; Figure 6 This is a schematic diagram of the exploded structure of Embodiment 2 of this application; Figure 7 This is a cross-sectional structural diagram of Embodiment 2 of this application, mainly illustrating the structure of the clamping block; Figure 8 for Figure 7 A magnified view of part B in the image; Figure 9 This is a cross-sectional view of Embodiment 2 of this application, mainly illustrating the structure of the hook-and-loop connection. Figure 10 for Figure 9 A magnified view of part C.

[0028] Reference numerals: 1. Silencing plate; 2. Lightweight crystal plate; 21. Insertion groove; 22. Hook groove; 3. First enclosure plate; 31. First sliding hole; 32. Second sliding hole; 4. Second enclosure plate; 41. Sliding groove; 42. First spring; 5. First connecting plate; 51. Insertion hole; 52. Movable groove; 53. Connecting groove; 6. Second connecting plate; 61. Rubber protrusion; 7. Insertion plate; 71. Lifting groove; 72. Anchor block; 721. Second wedge surface; 73. Abutting tooth; 74. Moving groove; 75. Moving block; 751. First wedge surface; 752. Sixth wedge surface; 76. Abutting spring; 8. First push block; 81. Third wedge surface; 9. Second push block; 91. Fourth wedge surface; 92. Fifth wedge surface; 10. Hook tooth; 101. Insertion post; 102. Limiting plate; 20. Sliding block; 201. Mounting groove; 202. Second spring. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] This application discloses a sound-absorbing plate and its manufacturing process.

[0031] Example 1, Reference Figure 1 and Figure 2The sound-absorbing plate includes a sound-absorbing perforated plate 1 and sound-absorbing material. The sound-absorbing perforated plate 1 has several sound-absorbing holes and is rectangular in shape. The sound-absorbing material is made of lightweight crystal stone slab 2, which is made of silicon-based solid waste as the main raw material and is sintered at high temperature in one piece. It is honeycomb-shaped. The sound-absorbing perforated plate 1 is bent at 90 degrees around its perimeter to form four surrounding plates. The four surrounding plates are two first surrounding plates 3 and two second surrounding plates 4. The two first surrounding plates 3 are arranged opposite each other, and the two second surrounding plates 4 are arranged opposite each other. An installation area is formed between the four surrounding plates, and the lightweight crystal stone slab 2 is placed in the installation area.

[0032] Lightweight crystalline stone slab 2 originates from microcrystalline stone, with a hardness similar to stone. Its interior is composed of honeycomb-shaped foam formed by high-temperature melting and foaming, with a closed-cell rate exceeding 75%. Its thermal conductivity ranges from 0.076 to 0.15 W / m·K. Due to its high-temperature melting process, it resembles volcanic rock, possessing Class A fire resistance and an ablation resistance (mass loss rate) up to 50 times the national standard. Furthermore, lightweight crystalline stone exhibits water-repellent properties similar to glass, making it a stable and weather-resistant material.

[0033] The sound-absorbing panels made of lightweight crystalline stone slab 2 possess multiple properties. They not only reduce noise but also block the penetration of water, heat, and air, and withstand physical damage from water, fire, wind, and earthquakes. When constructing walls, minimal additional panels are required, as the panels themselves possess the main functions needed for modern walls, reducing the need for other materials and making wall construction simpler and faster.

[0034] Example 2, Reference Figure 3 and Figure 4 This embodiment differs from Embodiment 1 in that a first connecting plate 5 is provided at one end of both the first enclosure plate 3 and the second enclosure plate 4, and a second connecting plate 6 is provided at the other end of both. The length direction of the first connecting plate 5 is consistent with the length direction of the enclosure plate it is connected to, and similarly, the length direction of the second connecting plate 6 is consistent with the length direction of the enclosure plate it is connected to. All first connecting plates 5 have multiple insertion holes 51, and all second connecting plates 6 have multiple rubber protrusions 61. The number of insertion holes 51 on the first connecting plate 5 is the same as the number of rubber protrusions 61 on the second connecting plate 6. In practice, the first enclosure plate 3 and the second enclosure plate 4 are arranged perpendicularly, therefore the two connecting plates at the near ends of the first enclosure plate 3 and the second enclosure plate 4 are staggered.

[0035] When connecting the sound-absorbing plates, all the insertion holes 51 on the first connecting plate 5 and the rubber protrusions 61 on the second connecting plate 6 are inserted to form an interference fit, thereby achieving the pre-fixation of the two sound-absorbing plates. Figure 5 This is a schematic diagram of multiple sound-absorbing panels joined together.

[0036] In actual wall construction, the sound-absorbing panels are connected to the supporting frame via back-bolt dry-hanging. However, during connection, the construction worker needs to hold the sound-absorbing panel with one hand to align its position with the installation position of the supporting frame, and then use a tool with the other hand to tighten the bolts to connect the sound-absorbing panel and the supporting frame. During this process, the sound-absorbing panel needs to be held by the construction worker, and when tightening the bolts, the sound-absorbing panel may become misaligned, resulting in poor installation effect. In this application, after one sound-absorbing panel is installed in the above manner, subsequent sound-absorbing panels can be pre-fixed to the installed sound-absorbing panel by using the rubber protrusion 61 and the insertion hole 51. Then, the worker can quickly connect the sound-absorbing panel to the supporting frame without holding the sound-absorbing panel to position it, greatly improving construction efficiency. Similarly, the installation method of subsequent sound-absorbing panels is the same as described above, and the installation principle is the same whether the sound-absorbing panel is installed horizontally or vertically.

[0037] In addition, after the sound-absorbing panels are installed, the connection between each sound-absorbing panel is facilitated by the first connecting plate 5 and the second connecting plate 6, which helps to improve the connection strength between the sound-absorbing panels, that is, helps to improve the structural strength of the sound-absorbing wall.

[0038] All the insertion holes 51 on the first connecting plate 5 gradually decrease in size along the direction away from the connected enclosure plate, while all the rubber protrusions 61 on the second connecting plate 6 gradually increase in size along the direction away from the connected enclosure plate. When adjacent sound-absorbing plates are connected, whether in a horizontal or vertical direction, there is a relative sliding process. The largest rubber protrusion 61 on the second connecting plate 6 will preferentially contact the first connecting plate 5 and will move along the direction of increasing size of the insertion holes 51 on the first connecting plate 5. During this process, because the other insertion holes 51 are smaller, the largest rubber protrusion 61 will not form an insertion joint until it moves to the largest insertion hole 51 on the first connecting plate 5. Only then will all the rubber protrusions 61 adapt to the corresponding insertion holes 51 and form an insertion joint, thereby fixing the two sound-absorbing plates together. Conversely, if the insertion holes 51 are the same size and the rubber protrusions 61 are the same size, when the two sound-absorbing plates are connected, the outermost rubber protrusion 61 on the second connecting plate 6 will directly insert into the outermost insertion hole 51 on the first connecting plate 5, making it difficult to continue moving and affecting the pre-fixing rate of the two sound-absorbing plates.

[0039] The first connecting plate 5 is also provided with a movable groove 52. The movable groove 52 is located on the side of the smallest plug hole 51 away from the largest plug hole 51. The length direction of the movable groove 52 is parallel to the distribution direction of the plug holes 51. The movable groove 52 is connected to the smallest plug hole 51. All plug holes 51 on the first connecting plate 5 are connected to each other through the connecting groove 53.

[0040] After the sound-absorbing panels are pre-fixed, there may be situations where the distance between the sound-absorbing panels needs to be fine-tuned to adapt to the size of the entire wall. The conventional method is to directly adjust the installation position of the sound-absorbing panels on the supporting frame. In this application, since the connection between the first connecting plate 5 and the second connecting plate 6 is difficult to adjust, the connection between the movable groove 52 and the insertion hole 51 is utilized. When the position of the two sound-absorbing panels increases, the rubber protrusion 61 moves through the connecting groove 53 to the insertion hole 51 on the side. The smallest rubber protrusion 61 will enter the movable groove 52, thereby realizing the fine-tuning of the distance between the sound-absorbing panels. During the fine-tuning process, since the larger rubber protrusion 61 will move into the smaller insertion hole 51, the connection between the rubber protrusion 61 and the insertion hole 51 is more secure. That is, after the sound-absorbing panels are fine-tuned, the connection stability between adjacent sound-absorbing panels becomes higher.

[0041] The connecting groove 53 gradually decreases in size, and the connecting groove 53 gradually decreases in size along the direction of the larger insertion hole 51 to the smaller insertion hole 51. When fine-tuning the spacing between the sound-absorbing plates, in order to facilitate the smooth entry of the larger rubber protrusion 61 into the smaller insertion hole 51, the connecting groove 53 is used as a guide. The connecting groove 53 gradually decreases in size, that is, the area that restricts the rubber protrusion 61 also gradually decreases in size, and there will be no sudden decrease in size.

[0042] Reference Figure 3 and Figure 6 One of the first enclosure plates 3 has a welded insertion plate 7. The insertion plate 7 is rectangular and perpendicular to the first enclosure plate 3. The lightweight crystal plate 2 has an insertion groove 21, and the insertion plate 7 and the insertion groove 21 are inserted into each other. The connection between the insertion plate 7 and the lightweight crystal plate 2 helps to improve the connection strength between the sound-absorbing perforated plate 1 and the lightweight crystal plate 2.

[0043] Reference Figure 6 and Figure 7 The insertion plate 7 has a lifting groove 71. The insertion plate 7 slides up and down in the lifting groove 71 with a pressing block 72. The surface of the pressing block 72 has a number of abutting teeth 73. When the pressing block 72 abuts against the inner wall of the insertion groove 21 of the light crystal plate 2, the abutting teeth 73 contact the inner wall of the insertion groove 21. Because the light crystal plate 2 is honeycomb-shaped, a number of honeycombs will be formed. The abutting teeth 73 are inserted into the honeycomb to fix the light crystal plate 2.

[0044] The plug-in plate 7 is also provided with a movable groove 74. The length direction of the movable groove 74 is perpendicular to the length direction of the lifting groove 71, and the length direction of the movable groove 74 is perpendicular to the plane where the first enclosure plate 3 is located. The plug-in plate 7 is slidably connected to the movable block 75 in the movable groove 74. A first wedge-shaped surface 751 is formed on the movable block 75, and a second wedge-shaped surface 721 is formed on the lower side of the abutting block 72. The first wedge-shaped surface 751 and the second wedge-shaped surface 721 are adapted to each other. Reference Figure 7 and Figure 8 The first enclosure plate 3, connected to the plug-in plate 7, has a first sliding hole 31 and a second sliding hole 32. The length direction of the first sliding hole 31 is parallel to the length direction of the moving groove 74, and the length direction of the second sliding hole 32 is perpendicular to the first sliding hole 31 and parallel to the length direction of the lifting groove 71. One end of the second sliding hole 32 is connected to the first sliding hole 31, and the other end of the second sliding hole 32 is connected to the moving groove 74. A first push block 8 is slidably connected inside the first sliding hole 31. A second push block 9 is slidably connected within the second sliding hole 32. The first push block 8 is positioned protruding from the surface of the first enclosure plate 3. The end of the first push block 8 located within the first sliding hole 31 forms a third wedge-shaped surface 81. One end of the second push block 9 forms a fourth wedge-shaped surface 91, and the other end of the second push block 9 forms a fifth wedge-shaped surface 92. The third wedge-shaped surface 81 and the fourth wedge-shaped surface 91 are adapted to each other. The end of the moving block 75 near the second sliding hole 32 forms a sixth wedge-shaped surface 752. The fifth wedge-shaped surface 92 and the sixth wedge-shaped surface 752 are adapted to each other.

[0045] A retaining spring 76 is also installed at the end of the connecting plate 7 located in the moving groove 74 away from the second sliding hole 32. One end of the retaining spring 76 is connected to the bottom wall of the moving groove 74, and the other end is connected to the moving block 75. In the initial state, under the action of the retaining spring 76, the moving block 75 slides towards the second sliding hole 32. At this time, the retaining block 72 will not protrude from the lifting groove 71, and the moving block 75 will cause the second push block 9 to move towards the first sliding hole 31, eventually causing the first push block 8 to protrude from the first sliding hole 31.

[0046] During the insertion process of the lightweight crystal plate 2 and the insertion plate 7, the lightweight crystal plate 2 will abut against the first push block 8. The first push block 8 slides in the first sliding hole 31. The third wedge surface 81 of the first push block 8 and the fourth wedge surface 91 of the second push block 9 cooperate to make the second push block 9 slide in the direction of the moving groove 74. The fifth wedge surface 92 of the second push block 9 and the sixth wedge surface 752 of the moving block 75 cooperate to make the moving block 75 compress the abutment spring 76 and slide in the moving groove 74. With the cooperation of the first wedge surface 751 and the second wedge surface 721, the abutment block 72 slides in the lifting groove 71 and protrudes from the surface of the insertion plate 7 to abut against the inner wall of the insertion groove 21 of the lightweight crystal plate 2, thereby fixing the lightweight crystal plate 2.

[0047] During the installation of the lightweight crystal slab 2 and the sound-absorbing perforated plate 1, the first enclosure plate 3 with the plug-in plate 7 is bent first, and the lightweight crystal slab 2 is plugged into the plug-in plate 7. Then the remaining three enclosure plates are bent to surround the lightweight crystal slab 2 and form the sound-absorbing plate.

[0048] Reference Figure 3 and Figure 9Both second enclosure plates 4 are provided with hook teeth 10. The hook teeth 10 are arc-shaped and gradually decrease in size away from the connected second enclosure plate 4. The end of the hook tooth 10 away from the connected second enclosure plate 4 is sharp. The center of curvature of the hook tooth 10 is located on the bending axis of the second enclosure plate 4. Hook grooves 22 are provided on both sides of the lightweight crystal plate 2. The two hook grooves 22 and the two hook teeth 10 correspond one-to-one and are adapted in shape. When the lightweight crystal plate 2 and the insertion plate 7 are inserted, the center of curvature of the hook groove 22 is located on the bending axis of the second enclosure plate 4 on the same side. That is, during the bending process of the second enclosure plate 4, the hook teeth 10 will gradually enter the corresponding hook groove 22 to achieve hook engagement with the hook groove 22. The hooking of the hook teeth 10 and the hook groove 22 helps to improve the connection strength between the second enclosure plate 4 and the light crystal plate 2, which in turn helps to improve the structural strength of the sound-absorbing plate.

[0049] Reference Figure 9 and Figure 10 The following description will focus on one of the second enclosure plates 4. A sliding groove 41 is provided on the second enclosure plate 4. The length direction of the sliding groove 41 is parallel to the width direction of the second enclosure plate 4. A sliding block 20 is slidably connected to the second enclosure plate 4 within the sliding groove 41. A first spring 42 is installed in the second enclosure plate 4 within the sliding groove 41. The length direction of the first spring 42 is consistent with the length direction of the sliding groove 41. One end of the first spring 42 is connected to the inner wall of the sliding groove 41, and the other end of the first spring 42 is connected to the sliding block 20.

[0050] The sliding block 20 has an installation groove 201. The length direction of the installation groove 201 is perpendicular to the plane of the second enclosure plate 4. The larger side of the hook tooth 10 has an integrally formed insertion post 101. The insertion post 101 and the installation groove 201 are inserted and matched. The end of the insertion post 101 away from the hook tooth 10 is fixed with a limit plate 102. The sliding block 20 is installed in the installation groove 201 with a second spring 202. One end of the second spring 202 is connected to the bottom wall of the installation groove 201, and the other end of the second spring 202 is connected to the limit plate 102. The side of the installation groove 201 near the hook tooth 10 forms a limit surface. The limit plate 102 and the limit surface abut and limit, preventing the hook tooth 10 from disengaging.

[0051] The hook groove 22 on the lightweight crystal slab 2 may have a certain height error during molding, and there is also a deviation in the bending axis position during the bending process of the second enclosure plate 4. When the above errors occur, the connection between the hook tooth 10 and the hook groove 22 will be offset during the bending process of the second enclosure plate 4. In this application, when the hook groove 22 has a height error, the hook tooth 10 can easily enter the second enclosure plate 4 even with a certain error because the opening of the hook groove 22 on the surface of the lightweight crystal slab 2 is relatively large. If the position of the hook groove 22 is too high, the sliding block 20 will compress the first spring 42 during the rotation of the second enclosure plate 4, causing the hook tooth 10 to slide to match the height of the hook groove 22, thereby realizing the smooth insertion of the hook tooth 10 and the hook groove 22.

[0052] In the initial state, the second spring 202 abuts against the limiting plate 102, causing the limiting plate 102 and the limiting surface to come into contact. At this time, the hook tooth 10 extends the sliding block 20 by its maximum distance. When there is no error in the bending axis, when the hook tooth 10 enters the hook groove 22, it compresses the second spring 202, making the hook tooth 10 and the surface of the sliding block 20 fit tightly. The maximum distance that the hook tooth 10 extends is the maximum error of the bending axis. That is, in the initial state, the position of the hook tooth 10 can meet the insertion at the maximum error. As the error decreases, the hook tooth 10 will gradually compress the second spring 202 to adapt to the position of the hook groove 22.

[0053] The implementation principle of a sound-absorbing panel in this application embodiment is as follows: using light crystal stone board 2 as sound-absorbing material, it has the main functions required by modern walls and can replace the construction of traditional multi-layer boards, that is, reducing the use of boards and improving construction efficiency; the sound-absorbing panels can be pre-fixed by connecting the first connecting plate 5 and the second connecting plate 6, which facilitates subsequent installation; the sound-absorbing perforated plate 1 is connected to the light crystal stone board 2 by the plug-in plate 7 and the hook tooth 10 and the hook groove 22, which helps to improve the structural strength of the sound-absorbing panel.

[0054] A manufacturing process for a sound-absorbing panel, wherein the sound-absorbing panel is the sound-absorbing panel described in Example 2 above, includes the following steps: S1: Processing and shaping sound-absorbing perforated plate 1 and shaping lightweight crystal plate 2; S2: Bend one side of the sound-absorbing perforated plate 1; that is, bend the first enclosure plate 3 to which the plug plate 7 is connected; S3: Place the light crystal stone plate 2 in the middle of the sound-absorbing perforated plate 1; at the same time, make the insertion slot 21 of the light crystal stone plate 2 and the insertion plate 7 fit together. S4: Bend the other three sides of the sound-absorbing perforated plate 1; at the same time, make the hook teeth 10 of the second enclosure plate 4 and the hook groove 22 of the light crystal plate 2 fit together.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sound-absorbing panel, characterized in that: The system includes a sound-absorbing perforated plate (1) and sound-absorbing material disposed within the sound-absorbing perforated plate (1). The sound-absorbing perforated plate (1) has four surrounding plates formed by bending around its perimeter, and an installation area is formed between the four surrounding plates. The sound-absorbing material is disposed within the installation area. The sound-absorbing material is a lightweight crystalline stone plate (2) and is honeycomb-shaped. Each surrounding plate has a first connecting plate (5) at one end and a second connecting plate (6) at the other end. The length direction of the first connecting plate (5) is consistent with the length direction of the connected surrounding plate, and the length direction of the second connecting plate (6) is consistent with the length direction of the connected surrounding plate. The first connecting plate (5) has multiple insertion holes (51) along its length, and the second connecting plate (6) has multiple rubber protrusions (61) along its length. The number of rubber protrusions (61) is the same as the number of insertion holes (51). When the two sound-absorbing plates are connected, all the corresponding rubber protrusions (61) and all the insertion holes (51) correspond one-to-one and are inserted into each other. All the insertion holes (51) on the first connecting plate (5) gradually decrease in size along the direction away from the enclosure plate, and all the rubber protrusions (61) on the second connecting plate (6) gradually increase in size along the direction away from the enclosure plate.

2. The sound-absorbing plate according to claim 1, characterized in that: The first connecting plate (5) has a movable groove (52) on it. The movable groove (52) is located on the side of the first connecting plate (5) away from the largest plug hole (51) and the movable groove (52) is connected to the smallest plug hole (51) on the first connecting plate (5). All the plug holes (51) on the first connecting plate (5) are connected to each other through a connecting groove (53).

3. A sound-absorbing plate according to claim 1, characterized in that: The four enclosure panels are two first enclosure panels (3) and two second enclosure panels (4). The two first enclosure panels (3) are arranged opposite each other, and the two second enclosure panels (4) are arranged opposite each other. One of the first enclosure panels (3) is provided with a plug-in plate (7). The light crystal plate (2) is provided with a plug-in groove (21). The plug-in plate (7) and the plug-in groove (21) are plugged in and matched.

4. A sound-absorbing plate according to claim 3, characterized in that: The plug plate (7) has a lifting groove (71) inside. The plug plate (7) is located in the lifting groove (71) and a pressing block (72) is raised and lowered to press against the inner wall of the plug groove (21). The surface of the pressing block (72) has a plurality of abutting teeth (73). The plug plate (7) also has a moving groove (74) inside. The length direction of the moving groove (74) is perpendicular to the length direction of the lifting groove (71). The plug plate (7) is slidably connected to a moving block (75) inside the moving groove (74). A first wedge-shaped surface (751) is formed on the moving block (75). A second wedge-shaped surface (721) is provided on the lower side of the pressing block (72). The first wedge-shaped surface (751) and the second wedge-shaped surface (721) are adapted to each other. A first sliding hole (31) and a second sliding hole (32) are provided on the first enclosure plate (3) connected to the plug-in plate (7). The length direction of the first sliding hole (31) is parallel to the length direction of the moving groove (74), and the length direction of the second sliding hole (32) is perpendicular to the length direction of the first sliding hole (31). One end of the second sliding hole (32) is connected to the first sliding hole (31), and the other end of the second sliding hole (32) is connected to the moving groove (74). A first push block (8) is slidably disposed in the first sliding hole (31), and a second push block (8) is slidably disposed in the second sliding hole (32). Two push blocks (9), the first push block (8) is provided to protrude from the surface of the first enclosure plate (3), the end of the first push block (8) located in the first sliding hole (31) forms a third wedge surface (81), one end of the second push block (9) forms a fourth wedge surface (91), the other end of the second push block (9) forms a fifth wedge surface (92), the third wedge surface (81) and the fourth wedge surface (91) are adapted to each other, the end of the moving block (75) near the second sliding hole (32) forms a sixth wedge surface (752), the fifth wedge surface (92) and the sixth wedge surface (752) are adapted to each other; When the lightweight crystal plate (2) is inserted into the plug plate (7), the lightweight crystal plate (2) abuts against the first push block (8), the first push block (8) slides into the first sliding hole (31), and drives the second push block (9) to slide in the direction of the moving groove (74). The second push block (9) drives the moving block (75) to slide, and the moving block (75) drives the pressing block (72) to slide and press against the lightweight crystal plate (2).

5. A sound-absorbing plate according to claim 3, characterized in that: The second enclosure plate (4) is provided with hook teeth (10). The hook teeth (10) are arc-shaped and gradually decrease in size along the direction away from the second enclosure plate (4). The end of the hook teeth (10) away from the second enclosure plate (4) is sharp. The curvature center of the hook teeth (10) is located on the bending axis of the second enclosure plate (4). The two hook teeth (10) are located on both sides of the plug plate (7). The two sides of the light crystal plate (2) are provided with hook grooves (22). The shape of the hook grooves (22) is adapted to the shape of the hook teeth (10). The curvature center of the hook grooves (22) is located on the bending axis of the second enclosure plate (4). The two hook teeth (10) and the two hook grooves (22) correspond one-to-one, and the hook teeth (10) and the corresponding hook grooves (22) hook and engage.

6. A sound-absorbing plate according to claim 5, characterized in that: The second enclosure plate (4) is provided with a sliding groove (41), and the hook tooth (10) is slidably connected in the sliding groove (41). The length direction of the sliding groove (41) is parallel to the width direction of the second enclosure plate (4), and the second enclosure plate (4) is provided with a first spring (42) in the sliding groove (41). The length direction of the first spring (42) is parallel to the length direction of the sliding groove (41). One end of the first spring (42) is connected to the inner wall of the sliding groove (41), and the other end of the first spring (42) is connected to the hook tooth (10).

7. A sound-absorbing plate according to claim 6, characterized in that: The second enclosure plate (4) is slidably connected to a sliding block (20) within a sliding groove (41). The first spring (42) is connected to the sliding block (20). The hook tooth (10) is disposed on the sliding block (20). An installation groove (201) is provided in the sliding block (20). A second spring (202) is disposed within the installation groove (201) of the sliding block (20). A plug-in post (101) is provided at one end of the hook tooth (10) near the sliding block (20). The second spring (201) is inserted into the mounting groove (201), and a limiting plate (102) is provided at the end of the insertion post (101) away from the hook tooth (10). One end of the second spring (202) is connected to the limiting plate (102), and the other end of the second spring (202) is connected to the bottom wall of the mounting groove (201). A limiting surface is formed on the side of the mounting groove (201) near the hook tooth (10). The limiting plate (102) and the limiting surface abut and limit each other to prevent the hook tooth (10) from detaching.

8. The manufacturing process of a sound-absorbing panel according to any one of claims 1-7, characterized in that: Includes the following steps: S1: Process and form sound-absorbing perforated plate (1) and form light crystal stone plate (2); S2: Bend one side of the sound-absorbing perforated plate (1); S3: Place the light crystal slab (2) in the middle of the sound-absorbing perforated plate (1); S4: Bend the other three sides of the sound-absorbing perforated plate (1).

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