High sound insulation mass composite soundproof door

Abstract

The utility model discloses a high sound insulation quantity composite sound insulation door, including door frame and the door plate of rotation installation in the door frame, the door plate includes first panel and second panel of opposite setting, is equipped with the sound insulation board of several sound insulation layers between first panel and second panel, the door frame and the door plate are set up as mutually coordinated multilayer step shape in mutual close one side, the door frame is equipped with several groups of sealing components, the second sealing component on the inboard of first panel close, the outer side surface of second panel and the first sealing component of being equipped with close door frame, when high sound insulation quantity composite sound insulation door closes, second sealing component is close in first panel, first sealing component is close on door frame. The utility model discloses high sound insulation quantity composite sound insulation door adopts three layer composite sound insulation board, can block multiple frequency band's noise, multiple sealing adds automatic pressure, prevents the sound and disperses door lock pressure, the structure is stable, prolongs the life, and gives consideration to sound insulation and durability.

Description

Technical Field

[0001] This utility model relates to the field of noise shielding technology, and in particular to high sound insulation composite soundproof doors. Background Technology

[0002] With the acceleration of urbanization, noise pollution in the built environment is becoming increasingly prominent, such as traffic noise, neighborhood noise, and industrial equipment noise, which seriously affect people's quality of life and work efficiency. Soundproof doors, as an important barrier to control noise transmission, are widely used in residences, offices, recording studios, computer rooms, and other places with high sound insulation requirements.

[0003] The sound insulation effect of existing soundproof doors mainly relies on the sound insulation performance of the door panel itself and the sealing structure between the door body and the door frame. However, traditional soundproof doors mostly use single or double layers of homogeneous materials (such as solid wood or ordinary steel plates), which are difficult to effectively block noise of different frequencies, especially low and mid-frequency noise. Secondly, the door frame and door panel are mostly sealed with a single seal, and the sealing structure is simple. It is easy for the seal to fail due to installation gaps or deformation after long-term use, forming a "sound bridge" and causing noise leakage. Moreover, after the door is closed, the tightness of the seal is insufficient, making it difficult to ensure a tight fit between the seal and the contact surface, further reducing the sound insulation effect. Relying solely on the door lock to seal the door results in excessive pressure on the lock, which shortens the lifespan of the lock over time. Utility Model Content To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a high sound insulation composite soundproof door with simple structure and good sound insulation effect.

[0004] This utility model discloses a high sound insulation composite soundproof door, including a door frame and a door panel rotatably installed within the door frame. The door panel includes a first panel and a second panel arranged opposite to each other, with a sound insulation board of several sound insulation layers between the first panel and the second panel. The door frame and the door panel are configured in a multi-layered stepped shape that cooperates with each other on one side. The door frame and the door panel are provided with several sets of sealing components. A second sealing component is provided on the inner side of the door frame near the first panel, and a first sealing component is provided on the outer side of the second panel near the door frame. When the high sound insulation composite soundproof door is closed, the second sealing component is tightly attached to the first panel, and the first sealing component is tightly attached to the door frame.

[0005] In one or more embodiments of the present invention, the first sealing assembly includes a first sealing plate fixedly installed on the outer side of the second panel, and a first sealing member is further provided between the first sealing plate and the second panel. The edge of the first sealing member extends beyond the edge of the second panel. When the high sound insulation composite soundproof door is closed, the first sealing member is pressed between the second panel and the door frame.

[0006] In one or more embodiments of the present invention, the second sealing assembly includes an L-shaped second sealing plate and a second sealing member disposed on the second sealing plate. One side of the second sealing plate is fixedly installed on the door frame, and the second sealing member is installed on the side of the second sealing plate near the first door panel. When the high sound insulation composite soundproof door is closed, the second sealing member is pressed between the first panel and the door frame.

[0007] In one or more embodiments of this utility model, the door frame is further provided with a pressing assembly, the pressing assembly including a driving cylinder and a pressing block disposed at the movable end of the driving cylinder, the first sealing plate is provided with a pressing groove on the side near the pressing block, the depth of the pressing groove gradually decreases along the direction away from the extension and retraction of the driving cylinder, the pressing block is disposed in the pressing groove on the side near the first sealing plate, and the first sealing plate is further provided with a limiting block for limiting the pressing block at the upper part of the pressing groove.

[0008] In one or more embodiments of this utility model, the inner side of the door frame and the outer side of the door panel are configured as a stepped structure with several layers of mutual cooperation. The inner side of the door frame is provided with a third sealing element and a fourth sealing element. When the high sound insulation composite soundproof door is closed, the third sealing element and the fourth sealing element are squeezed between the door panel and the door frame.

[0009] In one or more embodiments of this utility model, the side of the door panel is provided with a first door lock assembly and a second door lock assembly with the same structure and connected to each other. The second door lock assembly includes a handle rotatably disposed on the first door panel. The handle is provided with a locking pin. The door frame is provided with a locking plate and a limiting groove is formed on the locking plate. When the high sound insulation composite soundproof door is closed, the locking pin is disposed in the limiting groove.

[0010] In one or more embodiments of this utility model, a displacement sensor is further included. The displacement sensor is disposed in the groove at the bottom of the limiting groove. When the displacement sensor detects the locking pin, the driving cylinder pushes the pressing block to the side where the depth of the limiting groove gradually decreases to press the door panel. When the displacement sensor does not detect the locking pin, the driving cylinder retracts the pressing block away from the side where the depth of the limiting groove gradually decreases to unlock the door panel.

[0011] In one or more embodiments of the present invention, the sound insulation panel includes a first sound insulation layer, a second sound insulation layer and a third sound insulation layer disposed on one side.

[0012] In one or more embodiments of this utility model, the first sound insulation layer is a galvanized steel sheet layer, the second sound insulation layer is a polyurethane foam layer, and the third sound insulation layer is a honeycomb panel layer.

[0013] In one or more embodiments of this utility model, the first panel and the second panel are wooden door panels.

[0014] The beneficial effects of this utility model are as follows: The sound insulation panel inside the door panel adopts a three-layer composite structure, including a galvanized steel plate layer, a polyurethane foam layer, and a honeycomb panel layer. This achieves a synergistic effect of high-density sound insulation, damping sound absorption, and structural vibration reduction, effectively absorbing and blocking high, medium, and low frequency noise, and significantly improving the overall sound insulation. Furthermore, the multi-layered stepped design of the door frame and door panel extends the noise propagation path and reduces the possibility of direct sound wave penetration. This invention comprises a first sealing component, a second sealing component, a third sealing element, and a fourth sealing element, forming multiple lines of defense to comprehensively block noise leakage from both the inner and outer sides of the door panel and the gaps in the steps. Furthermore, the sealing elements are further tightened by a pressing component to ensure a tight fit between the sealing elements and the contact surfaces, preventing sound insulation failure due to gaps. In this invention, the clamping component is linked with the door lock component and displacement sensor. After the door is closed and locked, it automatically drives the sealing element to clamp, and automatically releases when unlocking. This ensures reliable sealing and facilitates door opening and closing. It no longer relies solely on the door lock to lock and seal the door; the clamping component distributes the pressure on the door lock, preventing the lock from being shortened due to excessive pressure over a long period, and extending the overall service life of the door. Attached Figure Description

[0015] Figure 1 This is a front view of a high sound insulation composite soundproof door according to an embodiment of the present invention; Figure 2 This is a rear view of a high sound insulation composite soundproof door according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the high sound insulation composite soundproof door along direction AA in one embodiment of the present invention; Figure 4 for Figure 3 A magnified view of a section at point C; Figure 5 for Figure 2 A magnified view of a section at point D; Figure 6 This is a cross-sectional view of the high sound insulation composite soundproof door in the BB direction in one embodiment of the present invention; Figure 7 for Figure 6 A magnified view of a section at point E in the middle; Figure 8 This is a side view of the high sound insulation composite soundproof door of this utility model; Figure 9 for Figure 8 Enlarged view of a section at point F; Figure 10This is a cross-sectional view of the high sound insulation composite soundproof door pressing assembly in one embodiment of the present invention.

[0016] In the diagram: door frame 100, first outer frame 101, second outer frame 102, top frame 103, bottom frame 104, locking plate 104, door panel 200, first panel 201, second panel 202, first door lock assembly 31, second door lock assembly 32, handle 321, locking pin 322, locking plate 323, limiting groove 324, first sealing assembly 41, first sealing plate 411, pressing groove 4111, limiting block 4112, first sealing element 412, second sealing assembly 42, second sealing plate 421, second sealing element 422, third sealing element 43, fourth sealing element 44, pressing assembly 500, driving cylinder 501, pressing block 502, sound insulation plate 600, first sound insulation layer 601, second sound insulation layer 602, third sound insulation layer 603. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0018] In the description of this utility model, it should be understood that the terms "vertical", "horizontal", "top", "bottom", "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] It should be noted that, unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0020] Please see Figures 1 to 10 This utility model provides a high sound insulation composite soundproof door, the main structure of which includes a door frame 100 and a door panel 200 rotatably installed inside the door frame 100.

[0021] In a further embodiment, the door panel 200 includes a first panel 201 and a second panel 202 disposed opposite to each other, with a core sound insulation panel 600 disposed between the first panel 201 and the second panel 202. The sound insulation panel 600 is composed of several sound insulation layers. Specifically, the sound insulation panel 600 includes a first sound insulation layer 601, a second sound insulation layer 602, and a third sound insulation layer 603 disposed on one side. To achieve effective blocking and absorption of broadband noise, the first sound insulation layer 601 is preferably a high-density galvanized steel plate layer for blocking and reflecting sound waves; the second sound insulation layer 602 is preferably a porous polyurethane foam layer for absorbing sound energy and providing damping sound absorption; the third sound insulation layer 603 is preferably a honeycomb panel layer, which can provide structural support, further attenuate sound wave energy through its internal cavity, help reduce the overall weight of the door panel, and also play a role in structural vibration reduction. This multi-layer composite structure works synergistically to effectively absorb and block high, medium, and low frequency noise, significantly improving the overall sound insulation. In this embodiment, the first panel 201 and the second panel 202 are preferably wooden door panels.

[0022] In a further embodiment, to maximize the prevention of sound leakage from the door gap, the side of the door frame 100 and the door panel 200 that are in close contact with each other is designed as a multi-layered stepped structure that fits together. This multi-layered stepped design not only lengthens the propagation path of sound waves in the gap and increases sound attenuation, but also provides a solid foundation for multiple seals.

[0023] In a further embodiment, this high sound insulation composite soundproof door is provided with multiple sets of sealing assemblies to ensure the tightness of the door when closed. Specifically, it includes: a second sealing assembly 42 provided on the inner side of the door frame 100 near the first panel 201. The second sealing assembly 42 includes an L-shaped second sealing plate 421 and a second sealing element 422 disposed on the second sealing plate 421. One side of the second sealing plate 421 is fixedly installed on the door frame 100, and the second sealing element 422 is installed on the side of the second sealing plate 421 near the first panel 201. A first sealing assembly 41 is provided on the outer side of the second panel 202 near the door frame 100. The first sealing assembly 41 includes a first sealing plate 411 fixedly installed on the outer side of the second panel 202, and a first sealing element 412 is also provided between the first sealing plate 411 and the second panel 202, the edge of which slightly extends beyond the edge of the second panel 202.

[0024] When the high sound insulation composite soundproof door is closed, the second seal 422 of the second sealing assembly 42 is tightly attached to the first panel 201, while the first seal 412 of the first sealing assembly 41 is pressed between the second panel 202 and the door frame 100, forming two seals on the inner and outer sides of the door panel.

[0025] Furthermore, a third seal 43 and a fourth seal 44 are provided on the multi-layered stepped structure between the inner side of the door frame 100 and the outer side of the door panel 200. When the high sound insulation composite soundproof door is closed, these third seals 43 and fourth seals 44 are pressed against the stepped mating surface between the door panel 200 and the door frame 100, further increasing the number and complexity of the seals, thus forming a multi-layered, all-around sealing defense.

[0026] In a further embodiment, to ensure the sealing effect and extend the life of the door lock, a clamping assembly 500 is also provided on the door frame 100. The clamping assembly 500 includes a drive cylinder 501 and a clamping block 502 disposed at the movable end of the drive cylinder 501. A clamping groove 4111 is provided on the side of the first sealing plate 411 near the clamping block 502. The depth of the clamping groove 4111 gradually decreases along the direction away from the extension and retraction of the drive cylinder 501, forming a wedge-shaped inclined surface. The side of the clamping block 502 near the first sealing plate 411 is disposed in the clamping groove 4111. The first sealing plate 411 is also provided with a limiting block 4112 at the upper part of the clamping groove 4111 for limiting the clamping block 502 to prevent excessive movement of the clamping block.

[0027] This utility model also includes a door lock assembly and a linkage control system. A first door lock assembly 31 and a second door lock assembly 32, with identical structures and interconnected, are provided on the side of the door panel 200, for example, a multi-point linkage lock. The second door lock assembly 32 includes a handle 321 rotatably mounted on the first panel 201, and a locking pin 322 is provided on the handle 321. A locking plate 323 is provided at a corresponding position on the door frame 100, and a limiting groove 324 is formed on the locking plate 323. When the high sound insulation composite soundproof door is closed, the locking pin 322 is positioned within the limiting groove 324, achieving physical locking of the door panel 200.

[0028] In a further embodiment, to achieve automated control of the clamping assembly, this invention also includes a displacement sensor. The displacement sensor is disposed in a groove at the bottom of the limiting groove 324. When the displacement sensor detects the locking pin 322, indicating that the locking pin is in place and locked, the system determines that the door is closed and locked. At this time, the drive cylinder 501 is activated, pushing the clamping block 502 to the side of the limiting groove 4111 where the depth gradually decreases. Through the wedge action, pressure is applied to the door panel 200, making it tightly pressed towards the door frame 100, thereby ensuring that all seals, such as the first seal 412, the second seal 422, the third seal 43, and the fourth seal 44, are tightly fitted with the contact surface, maximizing the sealing effect. Conversely, when the displacement sensor does not detect the locking pin 322, indicating that the locking pin 322 moves out of the limiting groove 324, the door unlocks, and the drive cylinder 501 retracts the clamping block 502 away from the side of the limiting groove 4111 where the depth gradually decreases, to release the clamping on the door panel 200 and facilitate the opening of the door panel 200. In this embodiment, the device used to implement the displacement sensor function is an existing device, and its specific structure will not be described in detail here.

[0029] This utility model of a high sound insulation composite soundproof door achieves multiple beneficial effects through the above-mentioned structure and working principle: The three-layer composite sound insulation board 600 inside the door panel 200 consists of a galvanized steel plate layer 601, a polyurethane foam layer 602, and a honeycomb panel layer 603. It combines the characteristics of high-density sound insulation, porous sound absorption, and structural vibration reduction, which can effectively block and absorb noise in multiple frequency bands, including high, medium, and low frequencies, and significantly improve the overall sound insulation.

[0030] The multi-layered stepped design of the door frame 100 and door panel 200, along with multiple sealing components—first sealing component 41, second sealing component 42, third sealing component 43, and fourth sealing component 44—forms multiple, all-round sealing defenses on the inner and outer sides and at the stepped gaps, completely eliminating sound leakage and overcoming the problem of poor sealing in traditional soundproof doors.

[0031] The clamping assembly 500, in conjunction with the door lock assemblies 31 and 32 and the displacement sensor, achieves automatic clamping and sealing after the door is closed and locked, ensuring a tight fit between the seal and the contact surface. Simultaneously, the clamping assembly distributes the sealing pressure on the door lock, preventing the door lock from experiencing a shortened lifespan due to prolonged excessive pressure, thus extending the overall service life of the door and balancing sound insulation with ease of operation.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A high sound insulation composite soundproof door, comprising a door frame (100) and a door panel (200) rotatably installed within the door frame (100), characterized in that, The door panel (200) includes a first panel (201) and a second panel (202) arranged opposite to each other. A sound insulation board (600) with several sound insulation layers is provided between the first panel (201) and the second panel (202). The door frame (100) and the door panel (200) are set in a multi-layer stepped shape that fits each other tightly on one side. The door frame (100) and the door panel (200) are provided with several sets of sealing components. A second sealing component (42) is provided on the inner side of the door frame (100) near the first panel (201). A first sealing component (41) is provided on the outer side of the second panel (202) near the door frame (100). When the high sound insulation composite soundproof door is closed, the second sealing component (42) is tightly attached to the first panel (201), and the first sealing component (41) is tightly attached to the door frame (200).

2. The high sound insulation composite soundproof door according to claim 1, characterized in that: The first sealing assembly (41) includes a first sealing plate (411) fixedly installed on the outer side of the second panel (202). A first sealing element (412) is also provided between the first sealing plate (411) and the second panel (202). The edge of the first sealing element (412) extends beyond the edge of the second panel (202). When the high sound insulation composite soundproof door is closed, the first sealing element (412) is pressed between the second panel (202) and the door frame (200).

3. The high sound insulation composite soundproof door according to claim 1, characterized in that: The second sealing assembly (42) includes an L-shaped second sealing plate (421) and a second sealing member (422) disposed on the second sealing plate (421). One side of the second sealing plate (421) is fixedly installed on the door frame (100), and the second sealing member (422) is installed on the side of the second sealing plate (421) near the first door panel (201). When the high sound insulation composite soundproof door is closed, the second sealing member (422) is pressed between the first panel (201) and the door frame (200).

4. The high sound insulation composite soundproof door according to claim 2, characterized in that: The door frame (100) is also provided with a pressing assembly (500), which includes a driving cylinder (501) and a pressing block (502) disposed at the movable end of the driving cylinder (501). The first sealing plate (411) is provided with a pressing groove (4111) on the side near the pressing block (502). The depth of the pressing groove (4111) gradually decreases along the direction away from the extension and retraction of the driving cylinder (501). The pressing block (502) is disposed in the pressing groove (4111) on the side near the first sealing plate (411). The first sealing plate (411) is also provided with a limiting block (4112) for limiting the pressing block (502) at the upper part of the pressing groove (4111).

5. The high sound insulation composite soundproof door according to claim 1, characterized in that: The inner side of the door frame (100) and the outer side of the door panel (200) are configured as a stepped structure with several layers of mutual cooperation. The inner side of the door frame (100) is provided with a third seal (43) and a fourth seal (44). When the high sound insulation composite soundproof door is closed, the third seal (43) and the fourth seal (44) are squeezed between the door panel (200) and the door frame (100).

6. The high sound insulation composite soundproof door according to claim 4, characterized in that: The side of the door panel (200) is provided with a first door lock assembly (31) and a second door lock assembly (32) that are identical in structure and interconnected. The second door lock assembly (32) includes a handle (321) that is rotatably disposed on the first door panel (201). The handle (321) is provided with a locking pin (322). The door frame (100) is provided with a locking plate (323) and a limiting groove (324) is provided on the locking plate (323). When the high sound insulation composite soundproof door is closed, the locking pin (322) is disposed in the limiting groove (324).

7. The high sound insulation composite soundproof door according to claim 6, characterized in that: It also includes a displacement sensor, which is disposed in the groove at the bottom of the limiting groove (324). When the displacement sensor detects the locking pin (322), the driving cylinder (501) pushes the pressing block (502) to the side of the limiting groove (324) where the depth gradually decreases to press the door panel (200). When the displacement sensor does not detect the locking pin (322), the driving cylinder (501) retracts the pressing block (502) away from the side of the limiting groove (324) where the depth gradually decreases to unlock the door panel (200).

8. The high sound insulation composite soundproof door according to claim 1, characterized in that: The sound insulation panel (600) includes a first sound insulation layer (601), a second sound insulation layer (602), and a third sound insulation layer (603) disposed on one side.

9. The high sound insulation composite soundproof door according to claim 8, characterized in that: The first sound insulation layer (601) is a galvanized steel plate layer, the second sound insulation layer (602) is a polyurethane foam layer, and the third sound insulation layer is a honeycomb panel layer.

10. The high sound insulation composite soundproof door according to claim 1, characterized in that: The first panel (201) and the second panel (202) are wooden door panels.

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