A type of interlocking sound insulation panel for aluminum-plastic doors

Abstract

This application belongs to the field of sound insulation panel technology and discloses a spliced ​​sound insulation panel for aluminum-plastic doors, including a first splicing panel body, a second splicing panel body, and a sound insulation panel body installed in the first and second splicing panel bodies. Pre-fixing grooves are formed on both sides of the upper surface of the first and second splicing panel bodies, and pre-fixing blocks are slidably disposed within the pre-fixing grooves. A rotating groove is formed on the side wall of the first splicing panel body, and an annular groove is formed on the inner wall of the rotating groove. Two symmetrical sliding grooves are formed on the inner wall of the annular groove, and multiple moving grooves are formed through the inner walls of both sliding grooves. A rotating rod is rotatably disposed within the rotating groove, and an internal hexagonal groove is formed on the side wall of the rotating rod. A fixing component for fixing the first and second splicing panel bodies is provided on the rotating rod. This application effectively reduces the difficulty for workers to connect the two splicing panel bodies.

Description

Technical Field

[0001] This utility model relates to the field of sound insulation board technology, and in particular to a spliced ​​sound insulation board for aluminum-plastic doors. Background Technology

[0002] Aluminum-plastic composite doors and windows are a general term for modern door and window products, encompassing aluminum alloy doors and windows, U-PVC plastic steel doors and windows, and aluminum-plastic composite doors and windows (such as thermally broken aluminum and aluminum-clad wood doors and windows). Its core product, plastic steel doors and windows, uses UPVC resin as the main material, with added steel reinforcement to enhance structural strength. The multi-cavity design significantly reduces the thermal conductivity, achieving a thermal insulation efficiency of 1 / 357 that of steel. Interior decoration includes room design, renovation, and home design. With the increasing emphasis on quality of life, aluminum-plastic doors are gradually becoming a mainstream choice for interior decoration. To prevent noise pollution, more and more families are choosing to install soundproofing panels on the back of aluminum-plastic doors during renovation to absorb noise. To facilitate installation, current soundproofing panels have a splicing structure, allowing for quick assembly of multiple panels.

[0003] Chinese utility model patent CN221721961U discloses a spliced ​​sound insulation panel, including a sound insulation panel and a support frame. The support frame is disposed on the four sides of the sound insulation panel. The sound insulation panel includes a panel body and several limiting protrusions. The limiting protrusions are horizontally disposed around the four sides of the panel body. The panel body includes a waterproof layer, a sound-absorbing cotton layer, and a flame-retardant layer. The waterproof layer, the flame-retardant layer, and the sound-absorbing cotton layer are symmetrically distributed from the outside to the inside in sequence. The support frame includes a fixing frame and several limiting grooves. The fixing frame is a cross-shaped fixing frame. The limiting grooves are recessed on the side where the support frame connects to the sound insulation panel. The number of limiting grooves is the same as the number of limiting protrusions. The limiting protrusions are slidably installed in the limiting grooves. This application connects the limiting protrusions of the sound insulation panel to the support frame, and the support frame provides support force to the sound insulation panel, reducing the force on the limiting protrusions of the sound insulation panel, reducing the risk of the sound insulation panel falling off due to damage to the limiting protrusions, and increasing the service life of the sound insulation panel.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: The above-mentioned device initially stabilizes two spliced ​​panels by connecting the snap-fit ​​strips to the mating grooves. However, in actual use, the snap-fit ​​strips are prone to slight differences in size from the mating grooves due to tolerances. This makes it difficult for the snap-fit ​​strips to connect with the corresponding mating grooves, or after they are connected, the mating grooves cannot limit the snap-fit ​​strips. Consequently, it is difficult for operators to connect multiple snap-fit ​​strips on the same side to multiple mating grooves in sequence, resulting in a poor user experience. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a splicing sound insulation panel for aluminum-plastic doors.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a splicing sound insulation panel for aluminum-plastic doors, comprising a first splicing panel body, a second splicing panel body, and a sound insulation panel body installed in the first splicing panel body and the second splicing panel body. Pre-fixing grooves are provided on both sides of the upper surface of the first splicing panel body and the second splicing panel body. A pre-fixing block is slidably disposed in the pre-fixing groove. A rotating groove is provided on the side wall of the first splicing panel body. An annular groove is provided on the inner wall of the rotating groove. Two mutually symmetrical sliding grooves are provided on the inner wall of the annular groove. Multiple moving grooves are provided through the inner walls of the two sliding grooves. A rotating rod is rotatably disposed in the rotating groove. An internal hexagonal groove is provided on the side wall of the rotating rod. A fixing component for fixing the first splicing panel body and the second splicing panel body is provided on the rotating rod.

[0007] By adopting the above technical solution, when workers need to perform soundproofing on aluminum-plastic doors, they need to install soundproofing panels on the doors. To ensure the size of the soundproofing panels matches the aluminum-plastic doors, workers need to bring the second splicing panel close to and press it against the first splicing panel, thus aligning the two pre-fixing grooves. At this point, workers need to connect the pre-fixing block to both pre-fixing grooves simultaneously, which allows the second splicing panel to be initially stabilized under the action of the pre-fixing block. By using a single pre-fixing block to pre-fix the first and second splicing panels, the difficulty of subsequent connection is reduced, thereby simplifying the installation of the soundproofing panels.

[0008] Next, the worker needs to connect the Allen wrench to the Allen socket and rotate the wrench to rotate the lever, thereby connecting the second splicing panel to the first splicing panel under the action of the fixing component, thus expanding the coverage area of ​​the sound insulation panel. Further, the worker needs to press the first and second splicing panels firmly against the aluminum-plastic door, and then connect the first splicing panel to the aluminum-plastic door by applying fixing adhesive or installing fixing bolts, thus stabilizing the first splicing panel.

[0009] Furthermore, the fixing assembly includes an annular plate rotatably disposed in an annular groove, two driving blocks symmetrically slidably disposed on the side wall of the annular plate, two sliding rods respectively slidably disposed in two sliding grooves, a plurality of moving rods sequentially slidably disposed in a plurality of moving grooves, and a limiting device disposed on the second splicing plate body for limiting the moving rods. The annular plate and the rotating rod are fixed to each other. Two arc-shaped grooves are symmetrically opened on the side wall of the annular plate. The two driving blocks are slidably connected to the two arc-shaped grooves in sequence. The two driving blocks are fixed to the two sliding rods in sequence. The multiple moving rods located on the same side are all fixed to the adjacent sliding rods.

[0010] By adopting the above technical solution, when workers need to connect the first and second splicing panels, they need to connect the pre-fixing blocks to the two pre-fixing slots simultaneously and rotate the Allen wrench. This causes the rotating rod to rotate with the Allen wrench, thereby causing the annular plate to rotate with the rotating rod, and then the two driving blocks to slide sequentially along the two arc-shaped slots. At this time, the two sliding rods move away from each other, thereby causing the multiple moving rods fixed to the two sliding rods to move away from each other, so that the multiple moving rods near the second splicing panel connect with the first limiting slot. Furthermore, workers only need to activate the limiting device to keep the multiple moving rods connected with the first limiting slot stable, thus forming a whole from the first and second splicing panels.

[0011] Furthermore, each of the two opposite sidewalls of the second splicing panel is provided with a first limiting groove that corresponds to and matches the moving rod. Each of the inner walls of the plurality of first limiting grooves is provided with a second limiting groove. The limiting device includes a limiting rod that is slidably disposed in the second limiting groove and a compression spring that is fixed at one end to the sidewall of the limiting rod. The other end of the compression spring is fixed to the inner wall of the second limiting groove. A first inclined surface is provided on the edge of the limiting rod where the sidewall away from the compression spring intersects with the sidewall close to the first splicing panel. Each of the sidewalls of the plurality of moving rods is provided with a limiting hole that matches the limiting rod.

[0012] By adopting the above technical solution, after the moving rod is connected to the first limiting groove, the operator only needs to press down the drive rod. Under the action of the rotating rod, the moving rod moves towards the limiting rod and presses against the first inclined surface, so that the limiting rod moves completely into the second limiting groove under the combined action of the first inclined surface and the moving rod. Subsequently, when the second limiting groove is aligned with the limiting hole, the limiting rod automatically resets under the action of the compression spring, thereby connecting the limiting rod with the limiting hole, thus blocking the moving rod and keeping the second splicing panel stable.

[0013] Furthermore, the upper surface of the second splicing plate is provided with driving grooves on both sides, and the inner top wall of the multiple second limiting grooves is provided with communicating grooves that communicate with the driving grooves. A driving rod is slidably arranged in each of the two driving grooves, and a retaining block is slidably arranged in each of the multiple communicating grooves. The multiple retaining blocks are fixed to the adjacent driving rods. The upper surface of the multiple limiting rods is provided with placement grooves, and a second inclined surface is provided on the edge where the upper surface of the multiple limiting rods intersects with the inner wall of the placement groove near the compression spring.

[0014] By adopting the above technical solution, when workers need to remove the second splicing panel, they need to press down on the drive rod, which will cause multiple abutment blocks to move downwards with the drive rod. These abutment blocks will then sequentially press against their corresponding second inclined surfaces, causing the limiting rod to move away from the moving rod under the action of the second inclined surfaces and the abutment blocks, thus separating the limiting rod from the moving rod. At this point, workers only need to rotate the rotating rod in the opposite direction to gradually reset the moving rod, thereby separating the moving rod from the first limiting groove, thus improving the user experience.

[0015] Furthermore, a support spring is fixed to the bottom surface of the two drive rods, and the other end of the support spring is fixed to the inner bottom wall of the drive groove.

[0016] Furthermore, the upper surfaces of both drive rods are provided with grips to reduce the difficulty for workers to slide the drive rods.

[0017] Furthermore, the sound insulation panel body includes a first perforated metal plate, sound-absorbing cotton installed on the side wall of the first perforated metal plate, and a second perforated metal plate disposed on the side wall of the sound-absorbing cotton away from the first perforated metal plate.

[0018] By adopting the above technical solution, the perforated metal panel has high density characteristics, which can effectively block the transmission of airborne sound, and the sound insulation of the metal panel can reach more than 40dB. The sound-absorbing cotton has a porous structure. When sound waves pass through the sound-absorbing cotton, the cotton absorbs part of them. When the sound waves come into contact with the main body of the sound insulation panel, the first perforated metal panel comes into contact with the sound waves first, thereby reflecting part of the sound waves and absorbing part of the sound waves, thus effectively weakening the sound waves and improving the sound insulation effect of the aluminum-plastic door.

[0019] Furthermore, solid wood decorative panels are installed on the side walls of both the first and second splicing panels.

[0020] By adopting the above technical solution, after the workers connect the first splicing panel and the second splicing panel to the aluminum-plastic door, they only need to use fixing nails or other methods to connect the solid wood decorative panel to the first splicing panel and the second splicing panel. This allows the solid wood decorative panel to cover the first splicing panel and the second splicing panel, thereby reducing the probability that the rotating groove is directly exposed in the line of sight and improving the aesthetics of the sound insulation panel.

[0021] In summary, this utility model has the following beneficial effects: 1. In this application, when workers need to perform soundproofing on aluminum-plastic doors, they need to install soundproofing panels on the doors. To ensure the size of the soundproofing panel matches the aluminum-plastic door, workers need to bring the second splicing panel close to and press it against the first splicing panel, aligning the two pre-fixing slots. At this point, workers need to connect the pre-fixing block to both pre-fixing slots simultaneously, initially stabilizing the second splicing panel under its action. This pre-fixing of the first and second splicing panels with a single pre-fixing block reduces the difficulty of subsequent connection, thus simplifying the installation of the soundproofing panel. Subsequently, workers need to connect the Allen wrench to the Allen slot and rotate it to rotate the rotating rod, connecting the second splicing panel to the first splicing panel under the action of the fixing components, thereby expanding the coverage area of ​​the soundproofing panel. Furthermore, the staff needs to press the first splicing panel and the second splicing panel tightly against the aluminum-plastic door, and then connect the first splicing panel to the aluminum-plastic door by applying fixing adhesive or installing fixing bolts, so that the first splicing panel can be kept stable. 2. In this application, when the worker needs to connect the first splicing plate and the second splicing plate, the worker needs to connect the pre-fixing block to both pre-fixing slots simultaneously and rotate the Allen wrench. This causes the rotating rod to rotate with the Allen wrench, thereby causing the annular plate to rotate with the rotating rod, and then causing the two driving blocks to slide sequentially along the two arc-shaped slots. At this time, the two sliding rods move away from each other, thereby causing the multiple moving rods fixed to the two sliding rods to move away from each other, so that the multiple moving rods close to the second splicing plate connect with the first limiting slot. Furthermore, the worker only needs to activate the limiting device to keep the multiple moving rods connected to the first limiting slot stable, thereby forming a whole between the first splicing plate and the second splicing plate. 3. In this application, after the movable rod is connected to the first limiting groove, the operator only needs to press down the drive rod. Under the action of the rotating rod, the movable rod moves towards the limiting rod and presses against the first inclined surface, so that the limiting rod moves completely into the second limiting groove under the combined action of the first inclined surface and the movable rod. Subsequently, when the second limiting groove is aligned with the limiting hole, the limiting rod automatically resets under the action of the compression spring, thereby connecting the limiting rod with the limiting hole, thus blocking the movable rod and keeping the second splicing plate stable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the drive slot and its connection structure according to an embodiment of the present invention; Figure 3This is a schematic diagram of the connecting groove and its connection structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the sound insulation panel body and its connection structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the sliding groove and its connection structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the internal hexagonal groove and its connection structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the clamping block and its connection structure according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the limiting device and its connection structure according to an embodiment of the present utility model.

[0023] In the diagram: 1. First splicing panel; 11. Second splicing panel; 2. Sound insulation panel body; 21. First perforated metal plate; 22. Sound-absorbing cotton; 23. Second perforated metal plate; 24. Pre-fixing groove; 3. Pre-fixing block; 31. Rotating groove; 32. Annular groove; 33. Sliding groove; 34. Moving groove; 4. Rotating rod; 41. Hexagonal groove; 5. Fixing assembly; 51. Annular plate; 52. Driving block; 53. Sliding rod; 54. Moving rod; 55. Arc groove; 56. First limiting groove; 57. Second limiting groove; 6. Limiting device; 61. Limiting rod; 62. Compression spring; 63. First inclined surface; 64. Driving groove; 65. Limiting hole; 7. Connecting groove; 71. Driving rod; 72. Pressing block; 8. Placement groove; 81. Second inclined surface; 82. Supporting spring; 83. Handle; 9. Solid wood decorative panel. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] like Figure 1-8 As shown in the figure, this application discloses a splicing sound insulation board for aluminum-plastic doors, including a first splicing board body 1, a second splicing board body 11, a sound insulation board body 2, a pre-fixing block 3, a rotating rod 4, a fixing component 5, a driving rod 71, a pressing block 72, a support spring 82, a handle 83, and a solid wood decorative board 9.

[0026] Two sound insulation panel bodies 2 are provided and sequentially installed within the first splicing panel body 1 and the second splicing panel body 11. The sound insulation panel body 2 includes a first perforated metal plate 21, sound-absorbing cotton 22, and a second perforated metal plate 23. The first perforated metal plate 21 is made of aluminum plate, and the sound-absorbing cotton 22 is made of polyester fiber and is installed on the side wall of the first perforated metal plate 21. The second perforated metal plate 23 is made of aluminum plate and is located on the side wall of the sound-absorbing cotton 22 away from the first perforated metal plate 21.

[0027] The perforated metal panel has high density, effectively blocking airborne sound transmission; the sound insulation of the metal panel can reach over 40dB. The sound-absorbing cotton 22 has a porous structure; when sound waves pass through it, the cotton absorbs some of them. When the sound waves come into contact with the sound insulation panel body 2, the first perforated metal panel 21 first contacts the sound waves, causing some of the sound waves to be reflected, and the sound-absorbing cotton 22 to absorb some of the sound waves, thus effectively weakening the sound waves and improving the sound insulation effect of the aluminum-plastic door.

[0028] Both sides of the upper surface of the first splicing plate 1 and the second splicing plate 11 are provided with pre-fixing grooves 24. The pre-fixing blocks 3 are block-shaped structures and are slidably disposed in the two pre-fixing grooves 24. The side wall of the first splicing plate 1 is provided with a rotating groove 31. The inner wall of the rotating groove 31 is provided with an annular groove 32. The inner wall of the annular groove 32 is provided with two mutually symmetrical sliding grooves 33, and the inner walls of the two sliding grooves 33 are provided with multiple moving grooves 34. The rotating rod 4 is a round rod-shaped structure and is rotatably disposed in the rotating groove 31. The side wall of the rotating rod 4 is provided with an internal hexagonal groove 41.

[0029] A fixing component 5 is mounted on the rotating rod 4 to fix the first splicing plate 1 and the second splicing plate 11. The fixing component 5 includes an annular plate 51, a driving block 52, a sliding rod 53, a moving rod 54, and a limiting device 6. The annular plate 51 is a plate-shaped structure, rotatably mounted in the annular groove 32, and fixed to the rotating rod 4. Two arc-shaped grooves 55 are symmetrically formed on the side wall of the annular plate 51. The driving block 52 is a block-shaped structure, with two blocks 52 symmetrically slidably mounted on the side wall of the annular plate 51. The two driving blocks 52 are slidably connected to the two arc-shaped grooves 55 in sequence, and are also fixed to the two sliding rods 53 in sequence. The sliding rod 53 is a rectangular rod-shaped structure, with two rods 53 slidably mounted in the two sliding grooves 33 respectively. The movable rod 54 is a rectangular rod-shaped structure. Multiple movable rods 54 are provided and are slidably arranged in multiple movable slots 34 in sequence. Multiple movable rods 54 located on the same side are fixed to the adjacent sliding rod 53.

[0030] When the worker needs to connect the first splicing plate 1 and the second splicing plate 11, the worker needs to connect the pre-fixing block 3 to the two pre-fixing grooves 24 simultaneously, and rotate the Allen wrench. This will cause the rotating rod 4 to rotate with the Allen wrench, thereby causing the annular plate 51 to rotate with the rotating rod 4, and then causing the two driving blocks 52 to slide sequentially along the two arc-shaped grooves 55. At this time, the two sliding rods 53 move away from each other, thereby causing the multiple moving rods 54 fixed to the two sliding rods 53 to move away from each other, so that the multiple moving rods 54 close to the second splicing plate are connected to the first limiting groove 56. Furthermore, the worker only needs to activate the limiting device 6 to keep the multiple moving rods 54 connected to the first limiting groove 56 stable, thereby making the first splicing plate 1 and the second splicing plate 11 a whole.

[0031] On the two opposite side walls of the second splicing plate 11, there are first limiting grooves 56 that correspond one-to-one with and match the moving rods 54. On the inner walls of the multiple first limiting grooves 56, there are second limiting grooves 57. A limiting device 6 is installed on the second splicing plate 11 to limit the moving rods 54. The limiting device 6 includes a limiting rod 61 and a compression spring 62. The limiting rod 61 is a rectangular rod-shaped structure. The limiting rod 61 is slidably disposed within the second limiting groove 57. A first inclined surface 63 is formed on the edge of the limiting rod 61 where it intersects with the side wall of the limiting rod 61 away from the compression spring 62. On the side walls of the multiple moving rods 54, there are limiting holes 65 that match the limiting rod 61. One end of the compression spring 62 is fixed to the side wall of the limiting rod 61, and the other end of the compression spring 62 is fixed to the inner wall of the second limiting groove 57.

[0032] After the movable rod 54 is connected to the first limiting groove 56, the operator only needs to press down the drive rod 71. Under the action of the rotating rod 4, the movable rod 54 moves towards the limiting rod 61 and presses against the first inclined surface 63, so that the limiting rod 61 moves completely into the second limiting groove 57 under the combined action of the first inclined surface 63 and the movable rod 54. Subsequently, when the second limiting groove 57 is aligned with the limiting hole 65, the limiting rod 61 automatically resets under the action of the compression spring 62, thereby connecting the limiting rod 61 with the limiting hole 65, thus blocking the movable rod 54 and keeping the second splicing plate 11 stable.

[0033] The upper surface of the second splicing plate 11 has drive grooves 64 on both sides. The inner top walls of the multiple second limiting grooves 57 each have connecting grooves 7 that communicate with the drive grooves 64. The drive rod 71 is a rod-shaped structure, and two drive rods 71 ​​are provided and slidably disposed within the two drive grooves 64. The abutting block 72 is a block-shaped structure, and multiple abutting blocks 72 are provided and slidably disposed within the multiple connecting grooves 7. Each abutting block 72 is fixed to an adjacent drive rod 71. The upper surface of the multiple limiting rods 61 has a mounting groove 8, and a second inclined surface 81 is provided on the edge where the upper surface of the multiple limiting rods 61 intersects with the mounting groove 8 near the inner wall of the compression spring 62.

[0034] When the worker needs to remove the second splicing panel 11, the worker needs to press down on the drive rod 71, which will cause multiple clamping blocks 72 to move downward with the drive rod 71. This causes the clamping blocks 72 to sequentially press against the corresponding second inclined surface 81, thereby causing the limiting rod 61 to move away from the moving rod 54 under the action of the second inclined surface 81 and the clamping blocks 72, thus separating the limiting rod 61 from the moving rod 54. At this time, the worker only needs to rotate the rotating rod 4 in the opposite direction to gradually reset the moving rod 54, thereby separating the moving rod 54 from the first limiting groove 56, thus improving the worker's user experience.

[0035] Two support springs 82 are provided, and one end of the two support springs 82 is fixed to the bottom surface of the two drive rods 71 ​​in sequence, and the other end of the two support springs 82 is fixed to the inner bottom wall of the two drive grooves 64 in sequence.

[0036] To reduce the difficulty for workers to move the drive levers 71, the upper surfaces of both drive levers 71 are provided with handles 83 to reduce the difficulty for workers to slide the drive levers 71.

[0037] To improve the aesthetics of the soundproofing panel, solid wood decorative panels 9 are installed on the side walls of both the first splicing panel 1 and the second splicing panel 11. After the workers connect the first splicing panel 1 and the second splicing panel 11 to the aluminum-plastic door, they can easily connect the solid wood decorative panels 9 to the first splicing panel 1 and the second splicing panel 11 using fixing nails or similar methods. This allows the solid wood decorative panels 9 to conceal the first splicing panel 1 and the second splicing panel 11, thereby reducing the probability of the rotating groove 31 being directly exposed and improving the aesthetics of the soundproofing panel.

[0038] The working principle of the spliced ​​sound insulation panel for aluminum-plastic doors in this embodiment is as follows: When workers need to perform sound insulation treatment on the aluminum-plastic door, they need to install the sound insulation panel on the door. To ensure that the size of the sound insulation panel matches the aluminum-plastic door, the workers need to bring the second splicing panel 11 close to and press it against the first splicing panel 1, so that the two pre-fixing grooves 24 are aligned. At this time, the workers need to connect the pre-fixing block 3 to both pre-fixing grooves 24 simultaneously, so that the second splicing panel 11 is initially stabilized under the action of the pre-fixing block 3. At this time, by using a single pre-fixing block 3 to pre-fix the first splicing panel 1 and the second splicing panel 11, the difficulty of subsequent connection for workers is reduced, thereby reducing the difficulty of installing the sound insulation panel.

[0039] Subsequently, the worker needs to connect the Allen wrench to the Allen socket 41 and rotate the Allen wrench to rotate the rotating rod 4, thereby connecting the second splicing panel 11 to the first splicing panel 1 under the action of the fixing component 5, thus expanding the coverage area of ​​the sound insulation board. Further, the worker needs to press the first splicing panel 1 and the second splicing panel 11 firmly against the aluminum-plastic door, and connect the first splicing panel 1 to the aluminum-plastic door by applying fixing adhesive or installing fixing bolts, thus stabilizing the first splicing panel 1.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A splicing sound insulation panel for aluminum-plastic doors, comprising a first splicing panel body (1), a second splicing panel body (11), and a sound insulation panel body (2) installed within the first splicing panel body (1) and the second splicing panel body (11), characterized in that: Both sides of the upper surface of the first splicing plate (1) and the second splicing plate (11) are provided with pre-fixing grooves (24). A pre-fixing block (3) is slidably arranged in the pre-fixing groove (24). A rotating groove (31) is provided on the side wall of the first splicing plate (1). An annular groove (32) is provided on the inner wall of the rotating groove (31). Two mutually symmetrical sliding grooves (33) are provided on the inner wall of the annular groove (32). Multiple moving grooves (34) are provided through the inner walls of the two sliding grooves (33). A rotating rod (4) is rotatably arranged in the rotating groove (31). An internal hexagonal groove (41) is provided on the side wall of the rotating rod (4). A fixing component (5) for fixing the first splicing plate (1) and the second splicing plate (11) is provided on the rotating rod (4).

2. The spliced ​​sound insulation panel for aluminum-plastic doors according to claim 1, characterized in that: The fixing component (5) includes an annular plate (51) rotatably disposed in an annular groove (32), two drive blocks (52) symmetrically slidably disposed on the side wall of the annular plate (51), two sliding rods (53) respectively slidably disposed in two sliding grooves (33), a plurality of moving rods (54) sequentially slidably disposed in a plurality of moving grooves (34), and a limiting device (6) disposed on the second splicing plate body (11) for limiting the moving rods (54); The annular plate (51) is fixed to the rotating rod (4). Two arc-shaped grooves (55) are symmetrically opened on the side wall of the annular plate (51). The two driving blocks (52) are slidably connected to the two arc-shaped grooves (55) in sequence. The two driving blocks (52) are fixed to the two sliding rods (53) in sequence. The multiple moving rods (54) located on the same side are all fixed to the adjacent sliding rods (53).

3. The spliced ​​sound insulation panel for aluminum-plastic doors according to claim 2, characterized in that: The second splicing plate (11) has two opposite side walls with first limiting grooves (56) that correspond one-to-one with and match the moving rods (54). The inner walls of the multiple first limiting grooves (56) are provided with second limiting grooves (57). The limiting device (6) includes a limiting rod (61) that is slidably disposed in the second limiting groove (57) and a compression spring (62) with one end fixed to the side wall of the limiting rod (61). The other end of the compression spring (62) is fixed to the inner wall of the second limiting groove (57). The edge of the limiting rod (61) that is away from the compression spring (62) and intersects with the side wall of the first splicing plate (1) is provided with a first inclined surface (63). The side walls of the multiple moving rods (54) are provided with limiting holes (65) that match the limiting rods (61).

4. The spliced ​​sound insulation panel for aluminum-plastic doors according to claim 3, characterized in that: The upper surface of the second splicing plate (11) is provided with drive grooves (64) on both sides. The inner top wall of the multiple second limiting grooves (57) is provided with connecting grooves (7) that communicate with the drive grooves (64). Drive rods (71) are slidably arranged in the two drive grooves (64). Abutting blocks (72) are slidably arranged in the multiple connecting grooves (7). The multiple abutting blocks (72) are fixed to the adjacent drive rods (71). The upper surface of the multiple limiting rods (61) is provided with placement grooves (8). The upper surface of the multiple limiting rods (61) intersects with the inner wall of the placement groove (8) near the compression spring (62) and a second inclined surface (81) is provided on the edge where the upper surface of the multiple limiting rods (61) intersects with the inner wall of the placement groove (8) near the compression spring (62).

5. A spliced ​​sound insulation panel for aluminum-plastic doors according to claim 4, characterized in that: Support springs (82) are fixed to the bottom surfaces of the two drive rods (71), and the other end of the support springs (82) is fixed to the inner bottom wall of the drive groove (64).

6. A spliced ​​sound insulation panel for aluminum-plastic doors according to claim 5, characterized in that: Both drive rods (71) have handles (83) on their upper surfaces to reduce the difficulty for workers to slide the drive rods (71).

7. A spliced ​​sound insulation panel for aluminum-plastic doors according to claim 6, characterized in that: The sound insulation panel body (2) includes a first perforated metal plate (21), sound-absorbing cotton (22) installed on the side wall of the first perforated metal plate (21), and a second perforated metal plate (23) disposed on the side wall of the sound-absorbing cotton (22) away from the first perforated metal plate (21).

8. A spliced ​​sound insulation panel for aluminum-plastic doors according to claim 7, characterized in that: Solid wood decorative panels (9) are installed on the side walls of the first splicing panel (1) and the second splicing panel (11).

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