Foamed aluminum sound absorbing panel

Abstract

The utility model relates to sound absorption board technical field, and disclose a kind of foamed aluminium sound absorption board, including outer sound absorption frame, foamed aluminium sound absorption board body, the foamed aluminium sound absorption board body is sleeved in the front end of outer sound absorption frame, the rear end of outer sound absorption frame is sleeved with inner sealing plate, the rear end of inner sealing plate is provided with bidirectional transmission structure, and first fastener is sleeved in bidirectional transmission structure, and two output structures in bidirectional transmission structure inside are connected with clamping lever piece.The utility model is formed multifunctional auxiliary device by the outer sound absorption frame, inner sealing plate, bidirectional transmission structure and the clamping lever piece associated transmission of bidirectional transmission structure setting, subsequent combination process with foamed aluminium sound absorption board body, processing can utilize foamed aluminium sound absorption board body to carry out sound absorption treatment to target area while outer sound absorption frame and the structure associated with outer sound absorption frame can provide foamed aluminium sound absorption board body with anti-stamping protection, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of sound-absorbing panel technology, specifically to a foamed aluminum sound-absorbing panel. Background Technology

[0002] Foamed aluminum sound-absorbing panels are typically made by adding additives to pure aluminum or aluminum alloys and then foaming them. They have the appearance of both metal and air bubbles, and possess a range of advantages such as low density, high impact absorption capacity, high temperature resistance, strong fire resistance, corrosion resistance, sound insulation and noise reduction, low thermal conductivity, high electromagnetic shielding, strong weather resistance, filtering ability, easy processing, and easy installation. They are now widely used in industries such as environmental protection construction, sound insulation engineering, railway construction, and urban rail transit engineering.

[0003] In recent years, with the diversification of usage environments and the improvement of usage requirements, single-structure aluminum foam sound-absorbing panels are obviously no longer able to meet the usage needs, especially in terms of maintenance and replacement, and improving the upper limit of sound absorption effect. Single-structure aluminum foam sound-absorbing panels lack the structural conditions to meet the requirements. Therefore, in view of the problems existing in the prior art, the applicant will provide a solution using aluminum foam sound-absorbing panels. Utility Model Content

[0004] This invention provides a foamed aluminum sound-absorbing board, which solves the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a foamed aluminum sound-absorbing board, including an outer sound-absorbing frame and a foamed aluminum sound-absorbing board body. The foamed aluminum sound-absorbing board body is fitted inside the front end of the outer sound-absorbing frame. An inner sealing plate is fitted inside the rear end of the outer sound-absorbing frame. A bidirectional transmission structure is provided at the rear end of the inner sealing plate. A first fastener is fitted inside the bidirectional transmission structure. Both output structures inside the bidirectional transmission structure are connected to clamping rods. The two clamping rods in relative positions can clamp and lock the foamed aluminum sound-absorbing board body inside the outer sound-absorbing frame.

[0006] The bidirectional transmission structure includes two linkage plates that can be assembled relative to each other, and the front ends of the two linkage plates are each equipped with a slide rail that can be fixed to the rear end surface of the inner sealing plate. The rear ends of the two linkage plates are each provided with a clearance groove. The first fastener includes a first assembly screw and a first assembly nut, and one end of the first assembly screw can limit and lock the two linkage plates by passing through the two clearance grooves and locking with the first assembly nut.

[0007] Preferably, both of the linkage plates have inner grooves on their surfaces, and the two inner grooves form a clearance space. An elastic component is fitted inside the clearance space. The elastic component includes two damping plates in opposite positions, and a spring is installed between the surface of the damping plates and the inner wall of the opposite inner groove. This allows the elastic component to automatically separate the two linkage plates when they are not in use.

[0008] Preferably, the external sound-absorbing frame includes a frame body, the frame body is provided with a combination groove and an assembly baffle is fitted inside the frame body, the clamping rod includes an L-shaped clamping rod, one end of the L-shaped clamping rod is fixed with a positioning protrusion and can be engaged with the combination groove to avoid structural interference, and the other end of the positioning protrusion is connected to the corresponding linkage plate for transmission.

[0009] Preferably, the top and bottom of the rear end of the frame body and both sides of the rear end are fixed with combined sleeve plates, the combined sleeve plates are provided with strip grooves, and a second fastener is provided between two adjacent combined sleeve plates.

[0010] Preferably, the second fastener includes a second assembly screw and a second assembly nut. One end of the second assembly screw can be threaded through two slots in opposite positions and then connected to the second assembly nut to assemble and lock two adjacent composite plates, thereby making the assembly and expansion between multiple composite plates simple and convenient.

[0011] Preferably, the outer sound-absorbing frame has a screw hole in the rear end of the corner structure, and the inner sealing plate has a clearance hole in the corresponding corner structure that is aligned with the screw hole. The inner sealing plate and the outer sound-absorbing frame can be detached and installed by means of screws and clearance holes fitting together and then screwed into the screw hole, so that the inner sealing plate and the structure associated with the inner sealing plate have modular maintenance and replacement conditions.

[0012] Preferably, a corrugated baffle is provided between the surface of the inner sealing plate and the rear end surface of the foamed aluminum sound-absorbing panel body. Filling spaces can be provided between the corrugated baffle and the inner sealing plate, and between the corrugated baffle and the foamed aluminum sound-absorbing panel body, thereby further optimizing the use effect of the device.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model forms a multifunctional auxiliary device by setting an outer sound-absorbing frame, an inner sealing plate, a bidirectional transmission structure, and a clamping rod associated with the bidirectional transmission structure. In the subsequent combination with the foamed aluminum sound-absorbing panel body, the foamed aluminum sound-absorbing panel body can be used to absorb sound in the target area, while the outer sound-absorbing frame and the structure associated with the outer sound-absorbing frame can provide anti-impact protection for the foamed aluminum sound-absorbing panel body and extend its service life.

[0015] 2. The multifunctional auxiliary device provided in this utility model has a bidirectional transmission structure and a clamping rod connected to the bidirectional transmission structure, which can facilitate the assembly of the outer sound-absorbing frame and the foam aluminum sound-absorbing panel body. This ensures the structural strength while maintaining the flexibility of separating and replacing the foam aluminum sound-absorbing panel body from the outer sound-absorbing frame. Attached Figure Description

[0016] Figure 1 This is a rear view schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the structural frame body of this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the bidirectional transmission structure of this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the inner sealing plate of this utility model.

[0021] Figure 6 This is an enlarged schematic diagram of the structural elastic component of this utility model.

[0022] Figure 7 This is a schematic diagram of the assembly of the external sound-absorbing frame of this utility model.

[0023] Figure 8 This is a top view of the wave-shaped partition of this utility model.

[0024] In the diagram: 1. External sound-absorbing frame; 101. Frame body; 102. Assembly baffle; 103. Combination groove; 2. Foam aluminum sound-absorbing panel body; 3. Inner sealing plate; 4. Two-way transmission structure; 41. Linkage plate; 42. Elastic component; 421. Damping plate; 422. Spring; 43. Slide rail; 5. Clamping rod; 51. L-shaped clamping rod; 52. Positioning spike; 6. First fastener; 7. Combination sleeve plate; 8. Corrugated partition plate; 9. Second fastener. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6A foamed aluminum sound-absorbing panel includes an outer sound-absorbing frame 1 and a foamed aluminum sound-absorbing panel body 2. The foamed aluminum sound-absorbing panel body 2 is fitted inside the front end of the outer sound-absorbing frame 1. An inner sealing plate 3 is fitted inside the rear end of the outer sound-absorbing frame 1. A bidirectional transmission structure 4 is provided at the rear end of the inner sealing plate 3. A first fastener 6 is fitted inside the bidirectional transmission structure 4. Both output structures inside the bidirectional transmission structure 4 are connected to clamping rods 5. The two clamping rods 5 in relative positions can clamp and lock the foamed aluminum sound-absorbing panel body 2 inside the outer sound-absorbing frame 1.

[0027] The external sound-absorbing frame 1 includes a frame body 101. The frame body 101 has a combination groove 103 and an assembly baffle 102. The clamping rod 5 includes an L-shaped clamping rod 51. One end of the L-shaped clamping rod 51 is fixed with a positioning protrusion 52 and can be engaged with the combination groove 103 to avoid structural interference. The other end of the positioning protrusion 52 is connected to the corresponding linkage plate 41 for transmission.

[0028] The bidirectional transmission structure 4 includes two linkage plates 41 that can be assembled relative to each other, and the front ends of the two linkage plates 41 are each equipped with a slide rail 43 that can be fixed to the rear end surface of the inner sealing plate 3. The rear ends of the two linkage plates 41 are each provided with a clearance groove. The first fastener 6 includes a first assembly screw and a first assembly nut, and one end of the first assembly screw can limit and lock the two linkage plates 41 by passing through the two clearance grooves and locking with the first assembly nut.

[0029] When in use, the outer sound-absorbing frame 1 and the foam aluminum sound-absorbing panel body 2 are locked together by the bidirectional transmission structure 4 and the clamping rod 5 to form a composite foam aluminum sound-absorbing panel. In subsequent use, in addition to the foam aluminum sound-absorbing panel body 2 providing sound absorption protection for the target area, the outer sound-absorbing frame 1 and the structure associated with the outer sound-absorbing frame 1 can provide anti-impact protection for the foam aluminum sound-absorbing panel body 2 and extend its service life.

[0030] When the foam aluminum sound-absorbing panel body 2 needs to be replaced, unscrew the first assembly screw and the first assembly nut inside the first fastener 6. After that, make the two bidirectional transmission structures 4 drive their respective corresponding clamping rods 5 to adjust their separation. Then, remove the foam aluminum sound-absorbing panel body 2 from inside the outer sound-absorbing frame 1.

[0031] Please see Figure 1 Both linkage plates 41 have inner grooves on their surfaces, and the two inner grooves form a clearance space. An elastic component 42 is fitted inside the clearance space. The elastic component 42 includes two damping plates 421 in opposite positions, and a spring 422 is installed between the surface of the damping plate 421 and the inner wall of the opposite inner groove. This allows the elastic component 42 to automatically separate the two linkage plates 41 when they are not in use.

[0032] In use, for two separate and idle linkage plates 41, two springs 422 can press against each other, thereby causing the two separate and idle linkage plates 41 to automatically separate. For two linkage plates 41 that are locked together by the first fastener 6 and are in the process of assembly, the two springs 422 drive their respective damping plates 421 to press against each other, thereby achieving a damping and buffering effect.

[0033] Please see Figure 7 The top and bottom of the rear end of the frame body 101 and both sides of the rear end are fixed with combined sleeve plates 7. The combined sleeve plates have strip grooves, and a second fastener 9 is provided between two adjacent combined sleeve plates 7. The second fastener 9 includes a second assembly screw and a second assembly nut. One end of the second assembly screw can be threaded through the two strip grooves in opposite positions and then threadedly connected to the second assembly nut to assemble and lock the two adjacent combined sleeve plates 7, thereby making the assembly and expansion between multiple combined sleeve plates 7 simple and convenient.

[0034] In use, for the assembly requirements of the foam aluminum sound-absorbing panel formed by the outer sound-absorbing frame 1, the foam aluminum sound-absorbing panel body 2, the bidirectional transmission structure 4, the clamping rod 5 and related structures, the combination sleeve 7 of two adjacent foam aluminum sound-absorbing panels can be aligned and assembled. Then, by using one end of the second assembly screw inside the second fastener 9 to pass through the two strip grooves in opposite positions and then threadedly connect with the second assembly nut, the two adjacent foam aluminum sound-absorbing panels can be assembled and locked.

[0035] Please see Figure 8 The outer sound-absorbing frame 1 has screw holes in the rear end of its corner structure, and the inner sealing plate 3 has clearance holes in its corresponding corner structure that are aligned with the screw holes. The inner sealing plate 3 and the outer sound-absorbing frame 1 can be detached and installed by screws and clearance holes, and then screwed into the screw holes. This allows the inner sealing plate 3 and the structure associated with it to have modular maintenance and replacement capabilities. A corrugated baffle 8 is provided between the surface of the inner sealing plate 3 and the rear end surface of the foam aluminum sound-absorbing panel body 2. Filling spaces can be provided between the corrugated baffle 8 and the inner sealing plate 3, and between the corrugated baffle 8 and the foam aluminum sound-absorbing panel body 2, thereby further optimizing the performance of the device.

[0036] When in use, if the inner sealing plate 3 and the structure associated with the inner sealing plate 3 malfunction, the screws between the inner sealing plate 3 and the outer sound-absorbing frame 1 can be unscrewed and removed. Then the inner sealing plate 3 and the structure associated with the inner sealing plate 3 can be directly separated from the inside of the outer sound-absorbing frame 1 to achieve modular replacement and maintenance.

[0037] To improve the overall performance of the device, the filling space formed between the corrugated baffle 8 and the inner sealing plate 3, and between the corrugated baffle 8 and the foam aluminum sound-absorbing panel body 2, can be filled with air or other sound-absorbing materials, thereby adjusting the main sound absorption frequency of the device.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foamed aluminum sound-absorbing panel, comprising an outer sound-absorbing frame and a foamed aluminum sound-absorbing panel body, characterized in that: The foamed aluminum sound-absorbing panel body is fitted inside the front end of the outer sound-absorbing frame. The rear end of the outer sound-absorbing frame is fitted with an inner sealing plate. The rear end of the inner sealing plate is provided with a bidirectional transmission structure. The bidirectional transmission structure is fitted with a first fastener. The two output structures inside the bidirectional transmission structure are connected to clamping rods. The two clamping rods in relative positions can clamp and lock the foamed aluminum sound-absorbing panel body inside the outer sound-absorbing frame. The bidirectional transmission structure includes two linkage plates that can be assembled relative to each other, and the front ends of the two linkage plates are each equipped with a slide rail that can be fixed to the rear end surface of the inner sealing plate. The rear ends of the two linkage plates are each provided with a clearance groove. The first fastener includes a first assembly screw and a first assembly nut, and one end of the first assembly screw can limit and lock the two linkage plates by passing through the two clearance grooves and locking with the first assembly nut.

2. The foamed aluminum sound-absorbing board according to claim 1, characterized in that: Both of the linkage plates have inner grooves on their surfaces, and the two inner grooves form a clearance space. An elastic component is fitted inside the clearance space. The elastic component includes two damping plates in opposite positions, and a spring is installed between the surface of the damping plates and the inner wall of the opposite inner groove.

3. The foamed aluminum sound-absorbing board according to claim 1, characterized in that: The external sound-absorbing frame includes a frame body, in which a combination groove is opened and an assembly baffle is fitted. The clamping rod includes an L-shaped clamping rod, one end of which is fixed with a positioning protrusion and can be engaged with the combination groove. The other end of the positioning protrusion is connected to the corresponding linkage plate for transmission.

4. The foamed aluminum sound-absorbing board according to claim 3, characterized in that: The top and bottom of the rear end of the frame body, as well as both sides of the rear end, are fixed with combined sleeve plates. The combined sleeve plates have strip grooves inside, and a second fastener is provided between two adjacent combined sleeve plates.

5. The foamed aluminum sound-absorbing board according to claim 4, characterized in that: The second fastener includes a second assembly screw and a second assembly nut. One end of the second assembly screw can be threaded through two opposite slots and then connected to the second assembly nut to assemble and lock two adjacent composite plates.

6. The foamed aluminum sound-absorbing board according to claim 1, characterized in that: The outer sound-absorbing frame has a screw hole in the rear end of the corner structure, and the inner sealing plate has a clearance hole in the corresponding corner structure that is aligned with the screw hole. The inner sealing plate and the outer sound-absorbing frame can be detached and installed by screws and clearance holes fitting together and then screwed into the screw hole.

7. The foamed aluminum sound-absorbing board according to claim 1, characterized in that: A corrugated baffle is provided between the surface of the inner sealing plate and the rear end surface of the foamed aluminum sound-absorbing panel body. Filling spaces can be provided between the corrugated baffle and the inner sealing plate, and between the corrugated baffle and the foamed aluminum sound-absorbing panel body.

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