Aluminum wood soundproof fire-retardant composite door

Abstract

The application relates to the technical field of composite doors, in particular to an aluminum-wood sound-insulation and fire-retardant composite door which comprises a door body and a door frame connected with the door body, the inner side of the bottom of the door body is provided with a damping buffer mechanism, the damping buffer mechanism is communicated with two air driving mechanisms through a connecting pipe one, the two air driving mechanisms are both arranged at the bottom of the door body, the bottom of the door body is fixedly provided with a sound-insulation bag connected with the air driving mechanism, the inner side of the top of the door body is provided with two groups of symmetrically-arranged fire-retardant mechanisms; the damping buffer mechanism comprises a shell one embedded in the door body, a driving piston and a passive piston one movably arranged in the shell one; the aluminum-wood sound-insulation and fire-retardant composite door can solve the problems of collision damage and noise caused by fast door closing, can block the gap between the door body and the ground when the door is closed, can improve the sound-insulation effect, can retard the fire spreading to the room area when a fire breaks out, and can improve the survival probability of the people in the room.

Description

Technical Field

[0001] This invention relates to the field of composite door technology, specifically to aluminum-wood soundproof and flame-retardant composite doors. Background Technology

[0002] With people's increasing demands for the quality of their home environment and the construction industry's emphasis on energy conservation, environmental protection, and safety, aluminum-wood composite doors are gaining popularity in the market due to their combination of the beauty of wood and the durability of aluminum alloy. However, traditional aluminum-wood composite doors still have some shortcomings in terms of sound insulation, flame retardancy, and ease of use.

[0003] In terms of sound insulation, while traditional aluminum-wood composite doors offer some soundproofing, their performance is often insufficient for spaces with high sound insulation requirements, such as bedrooms, studies, and home theaters. Specifically, some existing composite doors lack a bottom frame. While this maintains floor flatness, a gap must remain between the bottom of the door and the floor to prevent direct contact, creating a sound transmission channel and resulting in ineffective overall sound insulation. Regarding fire resistance, the wood component of traditional aluminum-wood composite doors is highly flammable in a fire, failing to effectively prevent the spread of fire and providing insufficient safety for occupants. Furthermore, the impact and noise of closing the door not only affect the quality of life for residents but can also damage the door and shorten its lifespan.

[0004] Therefore, in order to meet the market's demand for higher performance aluminum-wood composite doors, it is of great practical significance to develop an aluminum-wood sound-insulating and flame-retardant composite door with good sound insulation, flame retardant properties and buffering effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an aluminum-wood soundproof and flame-retardant composite door, which solves the technical problems of traditional aluminum-wood composite doors, such as easy collision damage and noise when closing, gaps between the door and the ground affecting sound insulation, insufficient sound insulation performance, lack of flame retardant performance, and easy wear and tear of sound insulation components when opening the door, which affects smoothness.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an aluminum-wood soundproof and flame-retardant composite door, including a door body and a door frame connected to the door body. A damping buffer mechanism is installed on the inner side of the bottom of the door body. The damping buffer mechanism is connected to two air-driven mechanisms through a connecting pipe. Both air-driven mechanisms are installed at the bottom of the door body. A soundproof bladder connected to the air-driven mechanism is fixed at the bottom of the door body. Two sets of symmetrically arranged flame-retardant mechanisms are installed on the inner side of the top of the door body.

[0007] The damping buffer mechanism includes a housing 1 embedded in the door body. An active piston and a passive piston 1 are movably disposed within the housing 1. Damping fluid is disposed in the cavity between the active piston and the passive piston 1. A top post is fixedly connected to the active piston. One end of the top post extends to the outside of the door body. A return spring is installed in the housing 1 on the side of the active piston away from the top post. A partition unit is fixedly connected in the housing 1 between the active piston and the passive piston 1.

[0008] Preferably, the separating unit includes a fixed ring fixedly connected to the housing, with a large hole at the center of the fixed ring, and a movable ring movably connected to the end face of the fixed ring near the active piston via a connecting block. The movable ring has a small hole at the center, and the diameter of the movable ring is larger than the diameter of the large hole.

[0009] Preferably, the pneumatic drive mechanism includes a housing two embedded in the door body, a passive piston two movably disposed inside the housing two, a connecting rod fixedly connected to the bottom of the passive piston two, a rigid plate fixedly connected to the bottom of the connecting rod, and the rigid plate fixedly connected to the bottom of the inner side of the soundproof bag.

[0010] Preferably, the soundproof bag is made of a stretchable and flexible material, and a flat sponge is adhered to the bottom of the soundproof bag.

[0011] Preferably, the flame-retardant mechanism includes a flame-retardant powder canister embedded in the door body. The flame-retardant powder canister is connected to a triggering unit via a connecting pipe. A diversion pipe is connected to the triggering unit, and multiple nozzles facing outwards from the door body are installed on the diversion pipe.

[0012] Preferably, the triggering unit is embedded in the housing three inside the door body. A blocking block with a through hole is movably arranged inside the housing three. A fuse rod is fixedly connected to the blocking block. One end of the fuse rod extends to the outside of the housing three and is sleeved on the fixed seat. A fixing pin is inserted into one end of the fuse rod. A storage spring is sleeved on the outside of the fuse rod inside the housing three.

[0013] Preferably, the fuse rod is provided with a fuse portion located outside the housing.

[0014] Preferably, the soundproof panel has an avoidance notch near the door handle.

[0015] Preferably, the inner side of the sound insulation board is provided with multiple sound insulation holes, the inner wall of the sound insulation holes is provided with multiple protrusions distributed in a ring, and sound-absorbing cotton is provided between the multiple protrusions.

[0016] By employing the above technical solution, the present invention provides an aluminum-wood soundproof and flame-retardant composite door, which has at least the following beneficial effects:

[0017] 1. This aluminum-wood soundproof and flame-retardant composite door features a damping buffer mechanism at the bottom of the door. When the door is closed, the active piston pushes the damping fluid through the partition unit, and the damping fluid can only flow through the small holes on the moving ring. Due to the small hole diameter, the flow is slow, thus creating a damping buffer effect to avoid collision damage and noise caused by rapid closing.

[0018] 2. This aluminum-wood soundproof and flame-retardant composite door features a pneumatic drive mechanism and a sound-insulating bladder connected to a damping buffer mechanism at the bottom of the door. When the door is closed, air from the damping buffer mechanism is forced into the pneumatic drive mechanism, causing the passive piston to move downwards and expand the sound-insulating bladder, bringing its bottom into contact with the ground. This seals the gap between the door and the ground, improving sound insulation. When the door is opened, the damping buffer mechanism resets, causing the sound-insulating bladder to also reset passively, preventing friction noise or wear caused by the bladder contacting the ground during opening and improving the smoothness of opening.

[0019] 3. This aluminum-wood soundproof and flame-retardant composite door has a flame-retardant mechanism installed at the top of the door. In the event of a fire and when escape is impossible, the flame retardant in the flame-retardant powder canister can be quickly sprayed out through the nozzle after the fuse rod in the trigger unit is burned off. This flame retardant can then be sprayed out to retard the area around the door, slowing the spread of the fire to the room area and increasing the chances of survival for people inside.

[0020] 4. This aluminum-wood soundproof and flame-retardant composite door enhances sound insulation by using a soundproof board with soundproof holes, ring-shaped protrusions, and sound-absorbing cotton in synergy. The soundproof holes and sound-absorbing cotton form multiple barrier paths to enhance the sound insulation effect. While maintaining partial hollowness, it increases the sound absorption effect to further improve the sound insulation quality. Attached Figure Description

[0021] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0022] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0023] Figure 2 This is a partial cross-sectional view of the top and bottom of the door body of the present invention;

[0024] Figure 3 This is a cross-sectional structural schematic diagram of the buffer damping mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the separator unit of the present invention;

[0026] Figure 5 This is a schematic diagram of the connection between the air-driven mechanism and the soundproof bag of the present invention;

[0027] Figure 6 This is a schematic diagram of the flame-retardant mechanism of the present invention;

[0028] Figure 7 This is a cross-sectional structural schematic diagram of the trigger unit of the present invention;

[0029] Figure 8 This is a schematic diagram of the sound insulation panel of the present invention;

[0030] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point A in the middle.

[0031] Figure label:

[0032] 1. Door body; 2. Door frame; 3. Damping buffer mechanism; 31. Housing 1; 32. Active piston; 33. Top column; 34. Return spring; 35. Separator unit; 351. Fixed ring; 3511. Large hole; 352. Connecting block; 353. Moving ring; 3531. Small hole; 36. Passive piston 1; 4. Connecting pipe 1; 5. Pneumatic drive mechanism; 51. Housing 2; 52. Passive piston 2; 53. Connecting rod; 54. Rigid plate; 6. Sound insulation 61. Sponge; 7. Flame-retardant mechanism; 71. Flame-retardant powder canister; 72. Connecting pipe II; 73. Triggering unit; 731. Housing III; 732. Blocking block; 7321. Through hole; 733. Fusible rod; 7331. Fusible part; 734. Storage spring; 735. Fixing base; 736. Fixing pin; 74. Diverter pipe; 75. Nozzle; 8. Sound insulation board; 81. Avoidance notch; 82. Sound insulation hole; 83. Protrusion; 84. Sound-absorbing cotton. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Aluminum-wood soundproof and fire-retardant composite doors are a type of composite door that combines the advantages of both aluminum alloy and wood. Through a special structural design and material combination, they possess the durability and corrosion resistance of aluminum alloy, as well as the aesthetic texture and warm atmosphere of wood, while integrating sound insulation and fire retardant functions. For sound insulation, multiple layers of sealing and sound-absorbing materials are typically used to reduce sound transmission and improve the quietness of the space. For fire retardancy, fire-retardant wood, fire-retardant coatings, or the addition of fire retardants are used to enhance the door's fire resistance, making it suitable for locations with specific requirements for sound insulation and fire resistance.

[0035] Due to existing technical shortcomings, such as easy collision damage and noise when closing the door, gaps between the door and the ground affecting sound insulation, insufficient sound insulation performance, lack of flame retardant performance, and easy wear and tear of sound insulation components when opening the door, which affects smoothness, please refer to... Figures 1-9 The aluminum-wood soundproof and flame-retardant composite door provided in this embodiment can solve the problems of collision damage and noise caused by rapid closing. When the door is closed, it can seal the gap between the door body 1 and the ground, which can improve the sound insulation effect. In the event of a fire, it can retard the area around the door, slow down the spread of fire to the room area, and increase the survival rate of people inside. The composite door includes a door body 1 and a door frame 2 connected to the door body 1. A damping buffer mechanism 3 is installed on the inner side of the bottom of the door body 1. The damping buffer mechanism 3 is connected to two air drive mechanisms 5 through a connecting pipe 4. Both air drive mechanisms 5 are installed at the bottom of the door body 1. A sound insulation bag 6 connected to the air drive mechanism 5 is fixed at the bottom of the door body 1. Two sets of symmetrically arranged flame-retardant mechanisms 7 are installed on the inner side of the top of the door body 1. By integrating the door body 1, damping buffer mechanism 3, air drive mechanism 5, sound insulation bag 6, and flame-retardant mechanism 7, the synergistic effect of buffering, sound insulation, and flame retardant functions is achieved. The structure is compact and the functions are comprehensive, which improves the overall performance of the door body 1.

[0036] Traditional door panels are prone to rattling and damage when closing quickly due to impact. To address this issue, please refer to... Figure 3 The damping buffer mechanism 3 includes a housing 31 embedded in the door body 1. An active piston 32 and a passive piston 36 are movably disposed within the housing 31. Damping fluid is contained in the cavity between the active piston 32 and the passive piston 36. A top post 33 is fixedly connected to the active piston 32, with one end extending to the outside of the door body 1. A return spring 34 is installed within the housing 31 on the side of the active piston 32 away from the top post 33. A partition unit 35 is fixedly connected within the housing between the active piston 32 and the passive piston 36. When the door is closed, the top post 33 of the damping buffer mechanism 3 contacts the inner side of the door frame 2. Under pressure, the top column 33 drives the active piston 32 to move. Since the active piston 32 is provided with damping fluid and a separating unit 35 on one side, when the active piston 32 pushes the damping fluid through the separating unit 35, the damping fluid can only flow through the small hole 3531 on the movable ring 353. Due to the small hole diameter, the flow is slow, forming a damping buffer effect to avoid collision damage and noise caused by rapid door closing. Conversely, when the door is opened, the return spring 34 pushes the active piston 32 to return to its original position, and the damping fluid can push the movable ring 353 open through the large hole 3511 on the fixed ring 351, enabling the active piston 32 to return to its original position quickly.

[0037] Specifically, the partition unit 35 includes a fixed ring 351 fixedly connected within the housing 31. The fixed ring 351 has a large hole 3511 at its center. The end face of the fixed ring 351 near the active piston 32 is movably connected to a movable ring 353 via a connecting block 352. The movable ring 353 has a small hole 3531 at its center, and the diameter of the movable ring 353 is larger than the diameter of the large hole 3511. The large hole 3511 of the fixed ring 351 and the small hole 3531 of the movable ring 353 cooperate, so that when the door is closed, the damping fluid can only flow slowly through the small hole 3531, enhancing the buffering effect. When the door is opened, the damping fluid can push the movable ring 353 aside and pass through the large hole 3511, reducing the reset resistance and achieving a balance between door closing buffering and smooth door opening.

[0038] Some existing composite doors lack a door frame at the bottom. While this maintains the flatness of the floor, a gap must be left between the bottom of the composite door and the floor to prevent direct contact. This gap can easily become a sound transmission channel, resulting in poor sound insulation. For solutions to this problem, please refer to... Figure 5 The pneumatic drive mechanism 5 includes a housing 51 embedded in the door body 1. A passive piston 52 is movably disposed within the housing 51. A connecting rod 53 is fixedly connected to the bottom of the passive piston 52. A rigid plate 54 is fixedly connected to the bottom of the connecting rod 53. The rigid plate 54 is fixedly connected to the bottom of the inner side of the sound insulation bag 6. When the door is closed, the air in the damping buffer mechanism 3 is squeezed into the pneumatic drive mechanism 5, causing the passive piston 52 to move down and open the sound insulation bag 6 downward, so that the bottom of the sound insulation bag 6 contacts the ground, thereby sealing the gap between the door body 1 and the ground, which can improve the sound insulation effect. Conversely, when the door is opened, the damping buffer mechanism 3 resets, thereby causing the sound insulation bag 6 to also passively reset, avoiding friction noise or wear caused by the sound insulation bag 6 contacting the ground when the door is opened, and improving the smoothness of opening the door.

[0039] Specifically, the sound insulation bag 6 is made of a stretchable and flexible material, and a flat sponge 61 is attached to the bottom of the sound insulation bag 6. The stretchable and flexible material of the sound insulation bag 6, together with the flat sponge 61 at the bottom, can not only fit tightly to the ground to seal gaps and enhance the sound insulation effect, but also reduce friction and noise when in contact with the ground, thus improving the comfort of use.

[0040] When a fire breaks out and escape is impossible, people typically close the doors and remain inside awaiting rescue. However, if the fire spreads to the doorway, it can burn through the door and into the room, reducing the chances of survival for those waiting inside. For more information on this issue, please refer to... Figure 6The flame-retardant mechanism 7 includes a flame-retardant powder tank 71 embedded in the door body 1. The flame-retardant powder tank 71 is connected to the triggering unit 73 through a connecting pipe 72. The triggering unit 73 is connected to a diversion pipe 74, and multiple nozzles 75 facing the outside of the door body 1 are installed on the diversion pipe 74. The flame-retardant powder tank 71 is under high pressure. It is connected to multiple nozzles 75 through the connecting pipe 72, the triggering unit 73, and the diversion pipe 74. In case of fire, flame retardant can be sprayed quickly and over a wide area to the outside of the door body 1 through multiple nozzles 75, thereby improving the flame-retardant coverage and efficiency.

[0041] Specifically, the trigger unit 73 is embedded in the housing 731 inside the door body 1. A blocking block 732 with a through hole 7321 is movably disposed within the housing 731. A fuse rod 733 is fixedly connected to the blocking block 732. One end of the fuse rod 733 extends to the outside of the housing 731 and is sleeved on the fixing seat 735. A fixing pin 736 is inserted into the other end of the fuse rod 733. A storage spring 734 is sleeved on the outer side of the fuse rod 733 inside the housing 731. The fuse rod 733, the storage spring 734, and the blocking block 732... In conjunction with the fire, the fuse rod 733 melts when heated, and the storage spring 734 pushes the blocking block 732 to open the passage. No electric drive is required, the triggering is reliable, and the flame-retardant function can be quickly activated when the fire spreads to the door 1. Furthermore, the fuse rod 733 is provided with a fuse part 7331 located outside the housing 3 731. The fuse part 7331 is located outside the housing 3 731 and is in direct contact with the external fire. It is heated faster and more evenly and can melt in time when the fire reaches a certain intensity, ensuring that the triggering unit 73 is activated quickly and improving the timeliness of flame retardancy.

[0042] Traditional sound insulation panels 8 conflict with the door handle position, making installation difficult. To address this issue, a clearance notch 81 is provided near the door handle of the sound insulation panel 8. By providing the clearance notch 81 near the door handle of the sound insulation panel 8, interference with the door handle is avoided, ensuring the integrity of the installation of the sound insulation panel 8 and maintaining its sound insulation performance.

[0043] Traditional soundproofing panels 8 have a simple design for their soundproofing holes 82, resulting in limited sound insulation and absorption effects. For more information on this issue, please refer to [reference needed]. Figure 9 The inner side of the sound insulation panel 8 is provided with multiple sound insulation holes 82, and the inner wall of the sound insulation holes 82 is provided with multiple ring-shaped protrusions 83, and sound-absorbing cotton 84 is provided between the multiple protrusions 83. Through the synergistic effect of the sound insulation panel 8 with sound insulation holes 82, the ring-shaped protrusions 83 and the sound-absorbing cotton 84, a multi-layer barrier path is formed by the sound insulation holes 82 and the sound-absorbing cotton 84 to enhance the sound insulation effect. While maintaining a partial hollow structure, the sound absorption effect is increased to further improve the sound insulation quality.

[0044] It should be noted that 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 process, method, article, or apparatus.

[0045] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum-wood soundproof and flame-retardant composite door, comprising a door body (1) and a door frame (2) connected to the door body (1), characterized in that: A damping buffer mechanism (3) is installed on the inner side of the bottom of the door body (1). The damping buffer mechanism (3) is connected to two air drive mechanisms (5) through a connecting pipe (4). Both air drive mechanisms (5) are installed at the bottom of the door body (1). A sound insulation bag (6) connected to the air drive mechanism (5) is fixed at the bottom of the door body (1). Two sets of symmetrically arranged flame retardant mechanisms (7) are installed on the inner side of the top of the door body (1). The damping buffer mechanism (3) includes a housing (31) embedded in the door body (1). An active piston (32) and a passive piston (36) are movably disposed in the housing (31). A damping fluid is disposed in the cavity between the active piston (32) and the passive piston (36). A top post (33) is fixedly connected to the active piston (32). One end of the top post (33) extends to the outside of the door body (1). A return spring (34) is installed in the housing (31) on the side of the active piston (32) away from the top post (33). A partition unit (35) fixedly connected in the housing (35) is provided between the active piston (32) and the passive piston (36). The partition unit (35) includes a fixed ring (351) fixed in the housing (31), a large hole (3511) is provided at the center of the fixed ring (351), and a movable ring (353) is movably connected to the end face of the fixed ring (351) near the active piston (32) through a connecting block (352). A small hole (3531) is provided at the center of the movable ring (353), and the diameter of the movable ring (353) is larger than the diameter of the large hole (3511). The pneumatic drive mechanism (5) includes a housing two (51) embedded in the door body (1), a passive piston two (52) is movably provided in the housing two (51), a connecting rod (53) is fixedly connected to the bottom of the passive piston two (52), a hard plate (54) is fixedly provided to the bottom of the connecting rod (53), and the hard plate (54) is fixedly connected to the bottom of the inner side of the sound insulation bag (6); The soundproof bag (6) is made of a stretchable and flexible material, and a flat sponge (61) is glued to the bottom of the soundproof bag (6); the flame retardant mechanism (7) includes a flame retardant powder canister (71) embedded in the door body (1), the flame retardant powder canister (71) is connected to the trigger unit (73) through the connecting pipe two (72), the trigger unit (73) is connected to the diversion pipe (74), and multiple nozzles (75) facing the outside of the door body (1) are installed on the diversion pipe (74); The triggering unit (73) has a housing three (731) embedded in the door body (1). A blocking block (732) with a through hole (7321) is movably arranged in the housing three (731). A fuse rod (733) is fixedly connected to the blocking block (732). One end of the fuse rod (733) extends to the outside of the housing three (731) and is sleeved on the fixing seat (735). A fixing pin (736) is inserted into one end of the fuse rod (733). A storage spring (734) is sleeved on the outside of the fuse rod (733) inside the housing three (731). The fuse rod (733) is provided with a fuse part (7331) located outside the housing three (731). It also includes a sound insulation board (8), the inner side of which is provided with a plurality of sound insulation holes (82), the inner wall of which is provided with a plurality of ring-shaped protrusions (83), and sound-absorbing cotton (84) is provided between the plurality of protrusions (83).

2. The aluminum-wood soundproof and flame-retardant composite door according to claim 1, characterized in that: The soundproof panel (8) has an avoidance notch (81) near the door handle.

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