An integrated sound-absorbing partition for the main transformer room of a substation

Abstract

The present invention discloses an integrated sound-absorbing partition of a main transformer room of a substation, comprising a sound-absorbing aluminum plate, fireproof rock wool, a sound-absorbing plate and sound-absorbing cotton, wherein the sound-absorbing aluminum plate is a whole piece structure, and concave hole structures are distributed on both sides of the sound-absorbing aluminum plate, and a concave hole structure and a compression spring buckle are distributed on the lower side, and buckles are arranged in the concave hole structures of the lower left part, the upper right part and the lower side, and tension spring hooks are arranged in the concave hole structures of the upper left part and the lower right part, and hooks and quick-release structures are distributed on the upper side of the sound-absorbing aluminum plate, and the integrated sound-absorbing partition of the main transformer room of the substation has a long fixing strip fixed to the wall. The present invention can realize the replacement of the internal structure, realize assembly through the spring structure, and the structure can be reused to avoid waste. The buckle-type installation will not cause damage to the installation wall, and it is prefabricated and processed in the factory. The installation process only requires the laying of the wallboard, which simplifies the installation process, greatly reduces the labor cost, and reduces the hidden dangers of multi-layer hidden processes.

Description

Technical Field

[0001] The invention belongs to the field of silencing, and in particular to the field of industrial silencing. Background Art

[0002] At present, the main transformer in the substation makes a lot of noise. According to the green construction guidelines and design specifications, the main transformer indoor wall panels adopt sound-absorbing measures. In the past, the indoor wall panels of the domestic substation transformer were installed layer by layer with three layers of fireproof rock wool, sound-absorbing cotton and sound-absorbing aluminum plate. The labor cost was high, the hidden processes of each layer were complicated, the process was difficult, and it was not convenient to disassemble after installation. It was necessary to install a keel frame or use universal glue to fix it to the wall, which caused great damage to the wall and serious waste. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention manufactures an integrated sound-absorbing partition of the main transformer room of a substation, which can not only realize the replacement of the internal structure, but also realize the assembly between the integrated sound-absorbing partitions of the main transformer room of the substation through a spring structure. The structure is reusable to avoid waste. The snap-on installation will not cause damage to the installation wall and is convenient for disassembly. The integrated sound-absorbing partition of the main transformer room of the substation is prefabricated in the factory, and the installation process only requires assembly of wall panels, which simplifies the installation process, greatly reduces labor costs, and reduces hidden dangers of multi-layer hidden processes.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is: to produce an integrated sound-absorbing partition of the main transformer room of a substation, the integrated sound-absorbing partition of the main transformer room of the substation includes a sound-absorbing aluminum plate, fire-proof rock wool, a sound insulation board and sound-absorbing cotton. The sound-absorbing aluminum plate is a whole piece structure, and two concave hole structures are distributed on both sides of the sound-absorbing aluminum plate, and two concave hole structures are distributed on the lower side. The middle is a compression spring buckle, and the concave hole structures in the lower left part, the upper right part and the lower side are buckles. The concave hole structures in the upper left part and the lower right part are tension spring hooks. Hooks and quick-release structures are distributed on the upper side of the sound-absorbing aluminum plate, and the integrated sound-absorbing partition of the main transformer room of the substation has a long fixing strip fixed to the wall.

[0005] Fireproof rock wool is installed in the sound-absorbing aluminum panel, and the fireproof rock wool is close to the sound-absorbing aluminum panel. Sound-absorbing cotton is installed in the sound-absorbing aluminum panel, and the sound-absorbing cotton is close to the fireproof rock wool. Sound insulation board is installed in the sound-absorbing aluminum panel, and the sound insulation board is close to the sound-absorbing cotton. Sound-absorbing cotton is installed in the sound-absorbing aluminum panel, and the sound insulation board is close to the sound-absorbing cotton. Holes are reserved on the fireproof rock wool, sound-absorbing cotton and sound insulation board for quick-release structure to facilitate the installation of quick-release compression rods. The internal structure of the sound-absorbing aluminum panel is in the following order: fireproof rock wool, sound-absorbing cotton, sound insulation board and sound-absorbing cotton, which can effectively absorb and isolate noise.

[0006] The tension spring hook on the upper left side of the integrated sound-absorbing partition of the main transformer room of the substation is connected to the upper right side buckle of the integrated sound-absorbing partition of the main transformer room of another substation, and the tension spring hook on the lower right side of the integrated sound-absorbing partition of the main transformer room of the substation is connected to the lower left side buckle of the integrated sound-absorbing partition of the main transformer room of another substation. The installation is more flexible and the structure is more stable, which can avoid the integrated sound-absorbing partition of the main transformer room of the substation from falling off due to improper installation.

[0007] Furthermore, the quick-release structure includes a slide rail, a slider, a side panel, a compression spring connector, a fixed plate, a stabilizing plate, a quick-release compression rod and a slide button. The quick-release structure is located on the upper side of the integrated sound-absorbing partition of the main transformer room of the substation, the slide rail is located on the upper side of the integrated sound-absorbing partition of the main transformer room of the substation, the slider is located above the slide rail, the side panel is located above the slider, the compression spring connector is located in the middle of the side panel to connect the two side panels, the fixed plate is fixed to both sides of the side panel, the stabilizing plate is fixed to the outside of the fixed plate, and is fixed to the side panel by screws passing through the fixed plate. One end of the quick-release compression rod is installed in the fixed plate through a spiral structure, and the slide button is fixed to the other end of the quick-release compression rod through a spiral structure. The quick-release structure can be directly installed into the compression spring buckle, and the side panel is directly slid into the compression spring buckle through the force in the up and down directions. The installation is convenient and labor costs are saved. The slide button of the quick-release structure has a reserved position on the sound-absorbing aluminum plate, and disassembly can be achieved by sliding the slide button toward the middle. The overall structure is simple and easy to operate.

[0008] Furthermore, the long fixing bar includes an upper fixing bar, a lower fixing bar, a left fixing bar and a right fixing bar. The long fixing bar is fixed to the wall by screws. Only by installing the long fixing bar, the installation of the integrated sound-absorbing partition of the main transformer room of the substation can be realized, which saves labor costs and does not damage the wall structure.

[0009] Furthermore, a buckle is provided on the upper fixing bar and is symmetrical with the position of the hook on the upper side of the integrated sound-absorbing baffle of the main transformer room of the substation. A compression spring buckle is provided on the upper fixing bar corresponding to the quick-release structure on the upper side of the integrated sound-absorbing baffle of the main transformer room of the substation. A hook is provided on the lower fixing bar and is symmetrical with the position of the buckle in the concave hole structure on the lower side of the integrated sound-absorbing baffle of the main transformer room of the substation. The overall structure is more stable and the installation is more convenient through the snap-on connection, which saves labor costs.

[0010] Furthermore, the structure of the right fixing bar is consistent with that of the left fixing bar, and buckles and tension spring hooks are interspersed on the left fixing bar. The positions of the buckles and tension spring hooks on the left fixing bar are symmetrical with the positions of the buckles and tension spring hooks on the left side of the integrated sound-absorbing baffle of the main transformer room of the substation. The buckles on the left fixing bar correspond to the tension spring hooks on the left side of the integrated sound-absorbing baffle of the main transformer room of the substation, and the tension spring hooks on the left fixing bar correspond to the buckles on the left side of the integrated sound-absorbing baffle of the main transformer room of the substation. The overall installation structure of the integrated sound-absorbing baffle of the main transformer room of the substation is stable, and the installation between the integrated sound-absorbing baffles of the main transformer room of the substation can be achieved in the left and right directions through the tension spring hooks and buckles.

[0011] Furthermore, the buckle in the concave hole structure is made of rubber, which is stronger and more wear-resistant, has a certain elasticity, and will not cause damage to the hook and the tension spring hook. The buckle in the concave hole structure is fixed in the concave hole through a detachable structure, the compression spring buckle, the hook and the tension spring hook are made of metal, and the quick-release compression rod, the fixing plate and the stabilizing plate are made of metal, which are stronger and more durable.

[0012] Furthermore, the whole piece of sound-absorbing aluminum plate is folded and installed into a rectangular structure, and the internal material can be replaced. The holes are evenly distributed on the sound-absorbing aluminum plate, which can absorb a certain amount of noise.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] 1. The present invention can be interconnected through a quick-release structure, a hook, a buckle and a tension spring hook. The quick-release structure can be directly snapped onto the compression spring buckle, and disassembly can be achieved through a sliding button. The installation is convenient, the structure is stable, the wall panels can be reused, the wall is not damaged, and labor costs are saved. It solves the problem of industrial sound insulation requiring layer-by-layer laying, a large number of scraps, high labor costs, complicated concealment procedures for each layer, and difficult processes.

[0015] 2. The present invention wraps the internal material with a one-piece sound-absorbing aluminum plate, which can realize the replacement of the internal structure. The setting of the fire-proof rock wool can prevent the motor and the machine from overheating and causing fire. At the same time, the overall installation mainly relies on the structural installation between the long fixed strip and the integrated sound-absorbing partition of the main transformer room of the substation, which causes little damage to the wall and can be reused, and also solves the problem of serious material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the integrated sound-absorbing partition of the main transformer room of the substation of the present invention;

[0017] Figure 2 This is an internal structural diagram of the integrated sound-absorbing partition of the main transformer room of the substation of the present invention;

[0018] Figure 3 It is a schematic diagram of the outer structure of the integrated sound-absorbing partition of the main transformer room of the substation of the present invention;

[0019] Figure 4 It is a schematic diagram of the quick-disassembly structure of the integrated sound-absorbing partition of the main transformer room of the substation of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the upper fixing strip of the integrated sound-absorbing partition of the main transformer room of the substation of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the lower fixing strip of the integrated sound-absorbing partition of the main transformer room of the substation of the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the left fixing bar of the integrated sound-absorbing partition of the main transformer room of the substation of the present invention.

[0023] Reference numerals:

[0024] 1. Sound-absorbing aluminum plate; 101. Hook; 102. Buckle; 103. Tension spring hook; 104. Compression spring buckle; 110. Quick-release structure; 111. Compression spring connector; 112. Side panel; 113. Slide rail; 114. Slider; 115. Fixed plate; 116. Stabilizing plate; 117. Quick-release compression rod; 118. Slide button; 2. Fireproof rock wool; 3. Sound-absorbing cotton; 4. Sound insulation board; 5. Upper fixing strip; 6. Lower fixing strip; 7. Left fixing strip; 8. Long fixing strip. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] 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 in conjunction with embodiments and drawings.

[0027] In the present invention, the serial numbers assigned to the components, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application include direct or indirect connection unless otherwise specified. It should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0028] like Figure 1-Figure 7 As shown, the present invention manufactures an integrated sound-absorbing partition of a main transformer room of a substation, and manufactures an integrated sound-absorbing partition of a main transformer room of a substation. The integrated sound-absorbing partition of a main transformer room of a substation comprises a sound-absorbing aluminum plate 1, a fireproof rock wool 2, a sound insulation plate 4 and a sound-absorbing cotton 3. The sound-absorbing aluminum plate 1 is a whole piece structure, and two concave hole structures are respectively distributed on both sides of the sound-absorbing aluminum plate 1, and two concave hole structures are distributed on the lower side. A compression spring buckle 104 is in the middle, and a buckle 102 is arranged in the concave hole structures of the lower left part, the upper right part and the lower side, and a tension spring hook 103 is arranged in the concave hole structures of the upper left part and the lower right part. A hook 101 and a quick-release structure 110 are distributed on the upper side of the sound-absorbing aluminum plate 1, and the integrated sound-absorbing partition of the main transformer room of the substation has a long fixing strip 8 fixed to the wall.

[0029] Fireproof rock wool 2 is installed in the sound-absorbing aluminum plate 1, and the fireproof rock wool 2 is close to the sound-absorbing aluminum plate 1. Sound-absorbing cotton 3 is installed in the sound-absorbing aluminum plate 1, and the sound-absorbing cotton 3 is close to the fireproof rock wool 2. Sound insulation board 4 is installed in the sound-absorbing aluminum plate 1, and the sound insulation board 4 is close to the sound-absorbing cotton 3. Sound-absorbing cotton 3 is installed in the sound-absorbing aluminum plate 1, and the sound insulation board 4 is close to the sound-absorbing cotton 3. Holes are reserved on the fireproof rock wool 2, sound-absorbing cotton 3 and sound insulation board 4 for quick-release structure 110 to facilitate the installation of quick-release compression rod 117. The internal structure of the sound-absorbing aluminum plate 1 is in the following order: fireproof rock wool 2, sound-absorbing cotton 3, sound insulation board 4 and sound-absorbing cotton 3, which can effectively absorb and isolate noise.

[0030] The tension spring hook 103 on the upper left side of the integrated sound-absorbing partition of the main transformer room of the substation is connected to the upper right side buckle 102 of the integrated sound-absorbing partition of the main transformer room of another substation, and the tension spring hook 103 on the lower right side of the integrated sound-absorbing partition of the main transformer room of the substation is connected to the lower left side buckle 102 of the integrated sound-absorbing partition of the main transformer room of another substation, which makes the installation more flexible and the structure more stable, avoiding the falling off of the integrated sound-absorbing partition of the main transformer room of the substation due to improper installation.

[0031] Preferably, the quick-release structure 110 includes a slide rail 113, a slider 114, a side plate 112, a compression spring connector 111, a fixed plate 115, a stabilizing plate 116, a quick-release compression rod 117 and a slide button 118. The quick-release structure 110 is located on the upper side of the integrated sound-absorbing partition of the main transformer room of the substation, the slide rail 113 is located on the upper side of the integrated sound-absorbing partition of the main transformer room of the substation, the slider 114 is located above the slide rail 113, the side plate 112 is located above the slider 114, the compression spring connector 111 is located in the middle of the side plate 112 to connect the two side plates 112, the fixed plate 115 is fixed on both sides of the side plate 112, and the stabilizing plate 116 is fixed on The outside of the fixing plate 115 is fixed to the side plate 112 by screws passing through the fixing plate 115, one end of the quick-release compression rod 117 is installed in the fixing plate 115 through a spiral structure, and the sliding button 118 is fixed to the other end of the quick-release compression rod 117 through a spiral structure. The quick-release structure 110 can be directly installed into the compression spring buckle 104, and the side plate 112 is directly slid into the compression spring buckle 104 through the force in the up and down directions. The installation is convenient and labor costs are saved. The sliding button 118 of the quick-release structure 110 is reserved on the sound-absorbing aluminum plate 1, and disassembly can be achieved by sliding the sliding button 118 to the middle. The overall structure is simple and easy to operate.

[0032] Preferably, the long fixing bar 8 includes an upper fixing bar 5, a lower fixing bar 6, a left fixing bar 7 and a right fixing bar. The long fixing bar 8 is fixed to the wall by screws. Only by installing the long fixing bar 8, the installation of the integrated sound-absorbing partition of the main transformer room of the substation can be realized, which saves labor costs and does not damage the wall structure.

[0033] Preferably, a buckle 102 is provided on the upper fixing bar 5 and is symmetrical with the position of the hook 101 on the upper side of the integrated sound-absorbing baffle of the main transformer room of the substation. A compression spring buckle 104 is provided on the upper fixing bar 5 corresponding to the quick-release structure 110 on the upper side of the integrated sound-absorbing baffle of the main transformer room of the substation. A hook 101 is provided on the lower fixing bar 6 and is symmetrical with the position of the buckle 102 in the concave hole structure on the lower side of the integrated sound-absorbing baffle of the main transformer room of the substation. The snap-on connection method makes the overall structure more stable, the installation is more convenient, and the labor cost is saved.

[0034] Preferably, the structure of the right fixing bar is consistent with that of the left fixing bar 7, and a buckle 102 and a tension spring hook 103 are interspersed on the left fixing bar 7. The positions of the buckle 102 and the tension spring hook 103 on the left fixing bar 7 are symmetrical with the positions of the buckle 102 and the tension spring hook 103 on the left side of the integrated sound-absorbing baffle of the main transformer room of the substation. The buckle 102 on the left fixing bar 7 is snapped into the tension spring hook 103 on the left side of the integrated sound-absorbing baffle of the main transformer room of the substation, and the tension spring hook 103 on the left fixing bar 7 is snapped into the buckle 102 on the left side of the integrated sound-absorbing baffle of the main transformer room of the substation. The overall installation structure of the integrated sound-absorbing baffle of the main transformer room of the substation is stable, and the installation between the integrated sound-absorbing baffles of the main transformer room of the substation can be achieved in the left and right directions through the tension spring hook 103 and the buckle 102.

[0035] Preferably, the buckle 102 in the concave hole structure is made of rubber, which is stronger and more wear-resistant, has a certain elasticity, and will not cause damage to the hook 101 and the tension spring hook 103. The buckle 102 in the concave hole structure is fixed in the concave hole through a detachable structure, the compression spring buckle 104, the hook 101 and the tension spring hook 103 are made of metal, and the quick-release compression rod 117, the fixing plate 115 and the stabilizing plate 116 are made of metal, which are stronger and more durable.

[0036] Preferably, the whole piece of the sound-absorbing aluminum plate 1 is folded and installed to form a rectangular parallelepiped structure, and the internal material can be replaced. The holes are evenly distributed on the sound-absorbing aluminum plate 1, which can absorb a certain amount of noise.

[0037] In practical applications, the present invention lays a long fixed strip 8 as a whole, and the hook 101 above the integrated sound-absorbing partition of the main transformer room of the substation is connected to the buckle 102 on the upper fixed strip 5, and the quick-release structure 110 above the integrated sound-absorbing partition of the main transformer room of the substation is connected to the compression spring buckle 104 on the upper fixed strip 5. Sliding the slide button 118 toward the middle can drive the quick-release compression rod 117 to move and compress the compression spring connector 111 inward to achieve disassembly. The tension spring hook 103 in the concave hole structure on the upper left side of the integrated sound-absorbing partition of the main transformer room of the substation is connected to the buckle 102 on the left fixed strip 7, and the buckle 102 in the concave hole structure on the lower left side of the integrated sound-absorbing partition of the main transformer room of the substation is connected to the tension spring hook 103 on the left fixed strip 7, and the buckles 102 in the concave hole structures on both sides below the integrated sound-absorbing partition of the main transformer room of the substation are connected to the lower fixed strip 6.

[0038] An embodiment of the present invention is described in detail above, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. For those skilled in the art, it should be appreciated that all solutions obtained by equivalent substitutions and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated sound-absorbing partition for the main transformer room of a substation, characterized by: It includes a sound-absorbing aluminum plate, fireproof rock wool, a sound insulation board and sound-absorbing cotton. The sound-absorbing aluminum plate is a whole piece structure. Two concave hole structures are distributed on both sides of the sound-absorbing aluminum plate, and two concave hole structures are distributed on the lower side. The middle is a compression spring buckle. The lower left part, the upper right part and the lower concave hole structures of the integrated sound-absorbing baffle are buckles. The concave hole structures of the upper left part and the lower right part of the integrated sound-absorbing baffle are tension spring hooks. The upper side of the sound-absorbing aluminum plate is distributed with a hook and a quick-release structure. The integrated sound-absorbing baffle of the main transformer room of the substation has a long fixing strip fixed to the wall; The quick-release structure includes a slide rail, a slider, a side plate, a compression spring connector, a fixed plate, a stabilizing plate, a quick-release compression rod and a slide button. The quick-release structure is located on the upper side of the integrated sound-absorbing baffle of the main transformer room of the substation. The slide rail is located on the upper side of the integrated sound-absorbing baffle of the main transformer room of the substation. The slider is located above the slide rail, and the side plate is located above the slider. The compression spring connector is located in the middle of the side plate to connect the two side plates. The fixed plate is fixed to both sides of the side plate. The stabilizing plate is fixed to the outside of the fixed plate and is fixed to the side plate by screws passing through the fixed plate. One end of the quick-release compression rod is installed in the fixed plate through a spiral structure, and the slide button is fixed to the other end of the quick-release compression rod through a spiral structure. The long fixing bar comprises an upper fixing bar, a lower fixing bar, a left fixing bar and a right fixing bar, and the long fixing bar is fixed to the wall by screws; The tension spring hook on the upper left side of the integrated sound-absorbing baffle of the main transformer room of the substation is connected to the upper right side buckle of the integrated sound-absorbing baffle of the main transformer room of another substation, and the tension spring hook on the lower right side of the integrated sound-absorbing baffle of the main transformer room of the substation is connected to the lower left side buckle of the integrated sound-absorbing baffle of the main transformer room of another substation.

2. The integrated sound-absorbing partition of the main transformer room of a substation according to claim 1 is characterized in that: Fireproof rock wool is installed in the sound-absorbing aluminum panel, and the fireproof rock wool is close to the sound-absorbing aluminum panel. Sound-absorbing cotton is installed in the sound-absorbing aluminum panel, and the sound-absorbing cotton is close to the fireproof rock wool. Sound insulation board is installed in the sound-absorbing aluminum panel, and the sound insulation board is close to the sound-absorbing cotton. Sound-absorbing cotton is installed in the sound-absorbing aluminum panel, and the sound insulation board is close to the sound insulation board. Holes are reserved on the fireproof rock wool, sound-absorbing cotton and sound insulation board for quick-disassembly structure. The internal structure of the sound-absorbing aluminum panel is in the following order: fireproof rock wool, sound-absorbing cotton, sound insulation board and sound-absorbing cotton.

3. The integrated sound-absorbing partition of the main transformer room of a substation according to claim 1 is characterized in that: A buckle is arranged on the upper fixing bar and is symmetrical with the position of the hook on the upper side of the integrated sound-absorbing baffle of the main transformer room of the substation; a compression spring buckle is arranged on the upper fixing bar corresponding to the compression mounting structure on the upper side of the integrated sound-absorbing baffle of the main transformer room of the substation; a hook is arranged on the lower fixing bar and is symmetrical with the position of the buckle in the concave hole structure on the lower side of the integrated sound-absorbing baffle of the main transformer room of the substation.

4. The integrated sound-absorbing partition of the main transformer room of a substation according to claim 1 is characterized in that: The structure of the right fixing bar is consistent with that of the left fixing bar, and buckles and tension spring hooks are interspersed on the left fixing bar. The positions of the buckles and tension spring hooks on the left fixing bar are symmetrical with the positions of the buckles and tension spring hooks on the left side of the integrated sound-absorbing baffle of the main transformer room of the substation. The buckle on the left fixing bar is clamped to the tension spring hook on the left side of the integrated sound-absorbing baffle of the main transformer room of the substation, and the tension spring hook on the left fixing bar is clamped to the buckle on the left side of the integrated sound-absorbing baffle of the main transformer room of the substation.

5. The integrated sound-absorbing partition of the main transformer room of a substation according to claim 1 is characterized in that: The position of the quick-release structure is aligned with the compression spring buckle, and the middle and outer sides of the side plates are aligned with the compression spring buckle.

6. The integrated sound-absorbing partition of the main transformer room of a substation according to claim 1 is characterized in that: The buckle in the concave hole structure is made of rubber material, and the buckle in the concave hole structure is fixed in the concave hole through a detachable structure. The compression spring buckle, hook and tension spring hook are made of metal material, and the quick-release compression rod, fixing plate and stabilizing plate are made of metal material.

7. The integrated sound-absorbing partition of the main transformer room of a substation according to claim 1 is characterized by: The whole piece structure of the sound-absorbing aluminum plate is a rectangular parallelepiped structure after being folded and installed, and holes are evenly distributed on the sound-absorbing aluminum plate.

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