Metal door with closed silencing structure

Abstract

The utility model discloses a metal door with a closed noise reduction structure, which belongs to the field of noise reduction metal doors, and is characterized in that the inner wall of a sealing rubber frame is provided with a protruding column, and the protruding column limits the deviation of the sealing rubber frame; an inner cavity is formed in the end face of the sealing rubber frame, sound absorption cotton is embedded in the inner cavity, the end face of the inner cavity is connected with a connecting part, the connecting part is connected with a protruding part through a wrinkle part, and the protruding part right faces the sealing door and achieves buffering and sound absorption. The sealing rubber frame is tightly matched with the metal door frame, sound absorption materials are combined, door closing noise is effectively reduced, and a quiet indoor environment is created. The design of the butt joint groove enhances sealing performance, prevents noise and dust from invading, and improves comfort. The protruding part buffers door closing vibration, the service life of the door is prolonged, and comfort is improved. The hinge and door lock design ensures smooth opening and closing and safe locking of the door, and the structure is scientific and stable. The modular design facilitates maintenance and replacement, and the maintenance cost is reduced. And the rubber and the sound-absorbing material are wear-resistant and anti-aging, so that the long-term durability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sound attenuation metal door, especially a metal door with closed sound attenuation structure. BACKGROUND

[0002] The metal door closed sound attenuation structure aims at reducing the noise generated when closing the metal door. Because the metal door itself has high density and hardness, closing it is often accompanied by impact sound and vibration sound, which brings negative effects to people's comfort and working environment. In order to improve this situation, the industry generally adopts the method of adding soft buffer materials such as rubber, brushes, etc. at the contact part of the door leaf and the door frame. These materials can effectively absorb sound and reduce vibration when closing the door, reducing noise. At the same time, shock absorbers such as springs, air pressure shock absorbers, etc. are installed between the door leaf and the door frame, which can also absorb and disperse impact force when the door is closed, further reducing the transmission of noise.

[0003] However, the existing metal door still needs to be improved in terms of closed sound attenuation effect. One of the key problems is that the design of the rubber buffer structure is relatively simple, and many metal doors use the same material, which may have limited shock absorption and noise reduction performance, resulting in loud noise when closing. In addition, the design of this buffer structure is relatively simple and does not fully consider the size and direction of the force on different parts of the door during the closing process, so it is difficult to effectively absorb and disperse these forces to achieve the desired noise reduction effect. Furthermore, the existing rubber buffer structure lacks an adjustment mechanism and cannot automatically adjust the buffer effect according to the opening and closing speed, force, etc. of the door, which may cause the problem of excessive noise when closing in actual use. SUMMARY

[0004] The main purpose of the utility model is to provide a metal door with closed sound attenuation structure, which can effectively solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A metal door with closed sound attenuation structure, comprising a metal door frame, a hinge device, a closed door, and a door lock device, the metal door frame is connected with the closed door through the hinge device, and the door lock device is installed on the closed door;

[0007] The inner wall of the metal door frame is provided with a butt joint groove, and the groove wall of the butt joint groove is provided with a plurality of recessed holes, the butt joint groove is embedded with a sealing rubber frame, and the inner wall of the sealing rubber frame is provided with a protruding column matched with the recessed hole, the protruding column limits the offset of the sealing rubber frame;

[0008] The end face of the sealing rubber frame is provided with an inner cavity, and the inner cavity is embedded with sound-absorbing cotton; the end face of the inner cavity is connected with a connecting part, and the connecting part is connected with a convex part through a wrinkle part, and the convex part is opposite to the closed door and realizes buffering and sound absorption.

[0009] As a further preferred scheme of the utility model, the end face of the sound-absorbing cotton is provided with a plurality of hexagonal packing holes, sound-absorbing packing is injected into each hexagonal packing hole, and the sound-absorbing packing abuts against the convex part and is stored in the inner cavity;

[0010] As a further preferred scheme of the utility model, the connecting part, the wrinkle part and the convex part are all designed as square frame shapes, the convex part, the wrinkle part and the connecting part are sequentially arranged from inside to outside, the convex part protrudes from the connecting part, and the wrinkle part is composed of a plurality of rubber frames;

[0011] As a further preferred scheme of the utility model, the connecting part, the wrinkle part and the convex part are integrally designed, and the connecting part, the wrinkle part and the convex part are all made of rubber material, and the connecting part is fixedly connected with the sealing rubber frame through heat melting;

[0012] As a further preferred scheme of the utility model, the sound-absorbing cotton is designed as a square frame, and the sound-absorbing cotton is fixed in the inner cavity of the sealing rubber frame through an adhesive;

[0013] As a further preferred scheme of the utility model, the sound-absorbing packing is any one of porous material, fiber material and inorganic material, and the sound-absorbing packing is designed as a spherical shape.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, through the close cooperation of the sealing rubber frame and the metal door frame, in combination with the excellent sound-absorbing performance of the sound-absorbing cotton and the sound-absorbing packing, the noise generated in the closing process of the door is significantly reduced, and a more quiet indoor environment is created for the user. The ingenious design of the butt joint groove ensures the excellent sealing performance of the door when closing, effectively blocks the invasion of external noise and dust, and thus improves the overall comfort of the indoor environment.

[0016] In addition, the convex part on the door plays a buffering role in the closing process, reduces the vibration generated by closing the door, prolongs the service life of the door, and also brings a more comfortable use experience to the user. The hinge device and the door lock device are carefully designed to ensure smooth opening and closing and safe locking state of the door, and the whole structure design is scientific and reasonable, ensuring the long-term stability of the product.

[0017] Our product adopts the modular design, makes the maintenance and the replacement part become more convenient and fast, greatly reduces the long-term use maintenance cost. Meanwhile, the selected rubber material and the sound absorbing cotton all have the wear resistance, the anti-aging characteristics, ensures that the sound insulation structure can be durable, brings the long-term quiet enjoyment for the user. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic diagram of the utility model;

[0019] Figure 2 It is whole structure plan view of the utility model;

[0020] Figure 3 It is exploded view of metal door frame, convex part, sealing rubber frame and sound absorbing cotton of the utility model;

[0021] Figure 4 It is Figure 3 Enlarged schematic diagram in A place;

[0022] Figure 5 It is front view of sealing rubber frame, sound absorbing cotton and sound absorbing filler of the utility model;

[0023] Figure 6 It is Figure 5 Enlarged schematic diagram in B place.

[0024] In the drawing: 1, metal door frame;2, hinge device;3, closed door;4, door lock device;5, convex part;6, pleat part;7, connecting part;8, sound absorbing cotton;9, hexagonal filler hole;10, sealing rubber frame;11, inner cavity;12, convex column;13, butt joint groove;14, recessed hole;15, sound absorbing filler. DETAILED DESCRIPTION

[0025] In order to make the technical means, the creation features, the purposes and the effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments. EMBODIMENT

[0026] As Figures 1 to 6 shown, the embodiment introduces a kind of metal door with unique closed sound insulation design. The metal door is mainly composed of the following several parts: metal door frame 1, hinge device 2, closed door 3 and door lock device 4. Among them, metal door frame 1 is connected with closed door 3 by hinge device 2, and door lock device 4 is installed on closed door 3.

[0027] In order to achieve effective sealing and sound insulation, the inner wall of the metal door frame 1 is provided with a butt joint groove 13. The groove wall of the butt joint groove 13 is distributed with a plurality of recessed holes 14, which are matched with the protruding columns 12 of the sealing rubber frame 10 embedded in the butt joint groove 13. The design of the protruding columns 12 cleverly limits the deviation of the sealing rubber frame 10 during closing, ensuring its close fit with the metal door frame 1.

[0028] The sealing rubber frame 10 not only has a sealing function, but also has an inner cavity 11 inside. A sound-absorbing cotton 8 is embedded in the inner cavity 11 for absorbing the noise generated when the door is closed. The end face of the inner cavity 11 is connected to a connecting part 7, which is connected to a protruding part 5 through a corrugated part 6. This protruding part 5 directly faces the closed door 3, which not only plays a buffering role, but also further enhances the sound-absorbing effect when the door is closed.

[0029] The connecting part 7, the corrugated part 6 and the protruding part 5 are designed in a square box shape, which are arranged from inside to outside. Among them, the protruding part 5 is obviously protruding from the connecting part 7, and the corrugated part 6 is composed of multiple rubber frames, which not only ensures the stability of the structure, but also increases the elasticity.

[0030] The connecting part 7, the corrugated part 6 and the protruding part 5 are integrally formed and made of rubber material. The selection of this material not only ensures the durability of the structure, but also ensures the close connection with the sealing rubber frame 10, which are firmly fixed together by heat melting technology.

[0031] And the sound-absorbing cotton 8 embedded in the inner cavity 11 also adopts a square box design, which is firmly fixed in the sealing rubber frame 10 by adhesive. This design ensures that the sound-absorbing cotton 8 will not shift or fall off during long-term use.

[0032] In addition, this embodiment also introduces the concept of sound-absorbing filler 15. This filler can be selected from porous materials, fiber materials or inorganic materials, designed in a spherical shape, with excellent sound-absorbing performance. Embodiment

[0033] This embodiment is further optimized based on the first embodiment. In addition to the above structural design, this embodiment also opens a plurality of hexagonal filler holes 9 on the end face of the sound-absorbing cotton 8. The sound-absorbing filler 15 is injected into these hexagonal filler holes 9, which further improves the sound-absorbing performance of the sound-absorbing cotton 8. At the same time, the sound-absorbing filler 15 also supports the protruding part 5 and is stored in the inner cavity 11, forming a more compact sound-absorbing structure. This design not only enhances the sound insulation effect of the door, but also improves the overall sealing performance of the door.

[0034] Installation process: first prepare the required materials, including metal door frame 1, with sealing rubber frame 10 butt joint groove 13, hinge device 2, closed door 3, door lock device 4, sound absorbing cotton 8 and sound absorbing filler 15 (if applicable).

[0035] Install the butt joint groove 13 on the inner wall of the metal door frame 1, ensure that the butt joint groove 13 is accurately positioned and firmly fixed. Embed the sealing rubber frame 10 into the butt joint groove 13, ensure that the protruding column 12 of the sealing rubber frame 10 matches and tightly fits the recessed hole 14 on the butt joint groove 13.

[0036] Put the sound absorbing cotton 8 into the inner cavity 11 of the sealing rubber frame 10, use adhesive to ensure that the sound absorbing cotton 8 is firmly fixed on the sealing rubber frame 10. If there is sound absorbing filler 15 in the design, inject the sound absorbing filler 15 into the inner cavity 11 through the hexagonal filler hole 9, ensure that the sound absorbing filler 15 fills the inner cavity 11 and presses against the protruding part 5.

[0037] Connect the closed door 3 with the metal door frame 1 through the hinge device 2, ensure that the closed door 3 can be smoothly opened and closed. Install the door lock device 4 on the closed door 3, ensure that the door lock device 4 matches the metal door frame 1 and can be normally locked.

[0038] In use: when the user wants to close the door, just gently push the closed door 3, make it rotate around the door frame through the hinge device 2 until it is closed. During the process of closing the closed door 3, the protruding part 5 first contacts with the metal door frame 1, plays a buffering role. At the same time, the sealing rubber frame 10 tightly fits with the metal door frame 1, forms a seal. When the door is closed, the sound absorbing cotton 8 and (if any) sound absorbing filler 15 in the sealing rubber frame 10 start to work, absorb the noise generated when the door is closed, so as to realize the sound absorbing effect.

[0039] Due to the tight fit of the sealing rubber frame 10 with the metal door frame 1, the door can maintain good sealing performance in the closed state, preventing the entry of noise and dust. Finally, the user can lock the door through the door lock device 4, ensure the safety and stability of the door in the closed state.

[0040] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and drawings. The specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the existing technology. The machinery, parts and equipment adopt the conventional type in the existing technology, and the electric melting connection adopts the conventional connection mode in the existing technology, which will not be described in detail here.

[0041] The above merely is the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the utility model concept of the present utility model within the technical range disclosed by the present utility model makes equivalent replacement or change, should be covered in the protection scope of the present utility model.

Claims

1. A metal door having a closed soundproofing structure, comprising a metal door frame (1), a hinge device (2), a closing door (3) and a door lock device (4), the metal door frame (1) is connected with the closing door (3) through the hinge device (2), and the door lock device (4) is installed on the closing door (3), characterized in that: The inner wall of the metal door frame (1) is provided with a butt joint groove (13), and the groove wall of the butt joint groove (13) is provided with a plurality of recessed holes (14), the butt joint groove (13) is embedded with a sealing rubber frame (10), and the inner wall of the sealing rubber frame (10) is provided with a protruding column (12) matched with the recessed hole (14), and the protruding column (12) limits the offset of the sealing rubber frame (10); The end face of the sealing rubber frame (10) is provided with an inner cavity (11), and the inner cavity (11) is embedded with sound-absorbing cotton (8), the end face of the inner cavity (11) is connected with a connecting part (7), and the connecting part (7) is connected with a protruding part (5) through a wrinkle part (6), the protruding part (5) is opposite to the closed door (3) and realizes buffering and sound absorption.

2. The metal door having a closed sound attenuation structure according to claim 1, wherein: The end face of the sound-absorbing cotton (8) is provided with a plurality of hexagonal packing holes (9), each hexagonal packing hole (9) is injected with sound-absorbing filler (15), the sound-absorbing filler (15) abuts against the protruding part (5) and is stored in the inner cavity (11).

3. A metal door having a closed sound attenuation structure according to claim 1 or 2, characterized in that: The connecting part (7), the wrinkle part (6) and the protruding part (5) are all designed as square frames, the protruding part (5), the wrinkle part (6) and the connecting part (7) are arranged from inside to outside, the protruding part (5) protrudes from the connecting part (7), and the wrinkle part (6) is composed of a plurality of rubber frames.

4. The metal door having a closed sound attenuation structure of claim 3, wherein: The connecting part (7), the wrinkle part (6) and the protruding part (5) are designed integrally, and the connecting part (7), the wrinkle part (6) and the protruding part (5) are all made of rubber material, and the connecting part (7) is fixed with the sealing rubber frame (10) by heat melting.

5. A metal door having a closed sound attenuation structure according to claim 4, wherein: The sound-absorbing cotton (8) is designed as a square frame, and the sound-absorbing cotton (8) is fixed in the inner cavity (11) of the sealing rubber frame (10) by an adhesive.

6. The metal door having a closed sound attenuation structure of claim 2, wherein: The sound-absorbing filler (15) is any one of porous material, fiber material and inorganic material, and the sound-absorbing filler (15) is designed as a spherical shape.

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