Sound insulation inner container structure of door body

Abstract

The utility model provides a door body sound insulation inner container structure, which relates to the field of door body sound insulation and comprises a sound insulation inner container device and a door body. The door body is connected with a mounting plate through fixing bolts, and a supporting frame is mounted on the inner side face of the door body. The sound insulation liner device comprises sound insulation cotton, mounting bolts, a sound insulation pore plate, a push-pull frame, a T-shaped pull rod, a sound absorption plate and rollers; a T-shaped pull rod is hinged to the right side face of the push-pull frame, rolling wheels are rotationally connected to the upper side face and the lower side face of the push-pull frame, a sound insulation hole plate is connected to the front side face and the rear side face of the push-pull frame through mounting bolts, sound insulation cotton is bonded to the front side face of the sound insulation hole plate, and a sound absorption plate is welded to the inner side face of the push-pull frame; through the arrangement of the push-pull frame, the rolling wheels, the door body, the sound insulation pore plate and the mounting bolts, the sound insulation inner container device and the door body are detached and separated, the aged sound insulation cotton can be conveniently and independently replaced, and the problem that the aged sound insulation cotton in a traditional sound insulation door cannot be independently detached and replaced, and consequently wood materials of the door body are wasted is solved.

Description

Technical Field

[0001] This utility model belongs to the field of door sound insulation, and more specifically, it relates to a door sound insulation inner liner structure. Background Technology

[0002] Soundproof wooden doors are wooden door structures used in applications requiring high sound insulation to provide a soundproofing effect. Soundproof doors utilize multi-layered composite materials, with sound-absorbing cotton and other filling materials fixedly sandwiched inside to achieve sound blocking. Currently, in traditional soundproof wooden doors, the internal sound-absorbing materials are fixed to the center of the door with strong adhesive. Over time, due to environmental factors such as temperature, humidity, and mechanical stress, the sound-absorbing cotton will age, wear out, and deform, thus reducing the door's sound insulation effect. Because the soundproof door and sound-absorbing cotton are an integrated, fixed installation structure, replacing the sound-absorbing cotton inevitably damages the door structure. Therefore, replacement requires the complete removal and replacement of both the wooden door and the sound-absorbing cotton, resulting in waste of the wooden material used in the door. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a door soundproof inner liner structure to solve the problem of wasted wooden materials in traditional soundproof doors due to the inability to individually remove and replace aging soundproof cotton.

[0004] This utility model provides a soundproof inner liner structure for a door, including a door body; the door body is connected to a mounting plate by fixing bolts, and the mounting plate has four sets of circular grooves at the four corners, each set of circular grooves has a through hole at the center of its bottom, and a support frame is installed on the inner side of the door body; it also includes a soundproof inner liner device; the soundproof inner liner device includes soundproof cotton, mounting bolts, a soundproof perforated plate, a push-pull frame, T-shaped pull rods, a sound-absorbing plate, and rollers; two sets of T-shaped pull rods are hinged to the right side of the push-pull frame, and two sets of rollers are rotatably connected to the upper and lower sides of the push-pull frame, the front and rear sides of the push-pull frame are connected to the soundproof perforated plate by mounting bolts, the front side of the soundproof perforated plate is glued with soundproof cotton, and a sound-absorbing plate is welded to the inner side of the push-pull frame.

[0005] In at least some embodiments, the sound-absorbing panel is made of high-strength aluminum alloy and consists of multiple sets of parallel hexagonal small honeycomb holes.

[0006] In at least some embodiments, the number of sound insulation perforated plates is two sets, and the sound insulation perforated plates are symmetrically distributed on the front and rear sides of the sound absorption plate. The four corners of the sound insulation perforated plates are respectively provided with through holes that run through the front and rear. The mounting bolts are inserted into the through holes of the sound insulation perforated plates, and the sound insulation perforated plates are provided with a large number of microporous structures.

[0007] In at least some embodiments, the door body is made of wood and has a groove structure with an opening on the right side. The upper and lower sides of the opening on the right side of the door body are provided with two sets of threaded holes. The outer side of the fixing bolt is threaded onto the threaded holes of the door body. The upper and lower sides of the groove inside the door body are provided with sliding grooves, and each set of two rollers is respectively embedded in the sliding groove of the door body.

[0008] In at least some embodiments, the number of support frames is two sets, and the support frames are symmetrically bonded to the front and rear sides inside the groove of the door body, with each set of support frames having a cross-shaped structure.

[0009] In at least some embodiments, threaded through holes are provided at the four corners of the front and rear sides of the push-pull bracket. The outer threads of the mounting bolts are screwed into the threaded through holes of the push-pull bracket. Two sets of through slots are provided on the right side of the push-pull bracket. Through holes are provided at the top positions of the front and rear sides of the through slots. The two sets of through holes are opposite to each other. The protrusions at both ends of the T-shaped pull rod are rotatably connected to the two sets of through holes inside the through slots of the push-pull bracket, so that the T-shaped pull rod is hinged to the inside of the through slots of the push-pull bracket.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In this utility model, the rollers rotatably connected to the upper and lower sides of the push-pull frame roll at the sliding grooves on the upper and lower sides inside the door body groove. This allows the push-pull frame, connected by mounting bolts, to slide into or out of the door body from the right side opening under the traction of the T-shaped pull rod. This achieves the disassembly and separation of the sound insulation inner liner from the door body, eliminating the traditional fixed adhesive structure between the sound insulation door body and the sound insulation inner liner. It also facilitates the removal of the sound insulation plate from the push-pull frame, thereby completing the replacement of the aged sound insulation cotton.

[0012] 2. In this utility model, the honeycomb structure of the sound-absorbing perforated plate and the densely distributed microporous sound wave dissipation and scattering structure of the sound-insulating perforated plate, combined with sound-insulating cotton, are used for sound insulation. This replaces the traditional method of simply filling the door with a large piece of sound-insulating cotton. This not only improves the sound insulation effect, but also enhances the strength of the door's supporting structure and reduces the weight of the door by using the traction support hollow structure between a large number of aluminum alloy honeycomb holes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a front view structural diagram of this utility model.

[0015] Figure 3 This is an exploded structural diagram of the present invention.

[0016] Figure 4This is a schematic diagram of the soundproof inner liner device of this utility model.

[0017] Figure 5 This is a schematic diagram of the exploded structure of the soundproof inner liner device of this utility model.

[0018] Figure 6 This is a schematic diagram of the right side of the soundproof inner liner device of this utility model.

[0019] Figure 7 This is a top view schematic diagram of the soundproof inner liner device of this utility model.

[0020] Figure label:

[0021] 1. Door body;

[0022] 2. Support frame;

[0023] 3. Soundproof inner liner; 301. Soundproof cotton; 302. Mounting bolts; 303. Soundproof perforated plate; 304. Sliding bracket; 305. T-shaped tie rod; 306. Sound-absorbing panel; 307. Rollers;

[0024] 4. Mounting plate;

[0025] 5. Fixing bolts. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] like Figures 1-7 As shown, this utility model provides a door soundproof inner liner structure, including a door body 1; the door body 1 is connected to a mounting plate 4 by fixing bolts 5, the mounting plate 4 has four sets of circular grooves at the four corners, each set of circular grooves has a through hole at the center of the bottom, and a support frame 2 is installed on the inner side of the door body 1; it also includes a soundproof inner liner device 3; the soundproof inner liner device 3 includes soundproof cotton 301, mounting bolts 302, soundproof perforated plate 303, push-pull frame 304, T-shaped pull rods 305, sound-absorbing plate 306 and rollers 307; two sets of T-shaped pull rods 305 are hinged to the right side of the push-pull frame 304, two sets of rollers 307 are rotatably connected to the upper and lower sides of the push-pull frame 304, the front and rear sides of the push-pull frame 304 are connected to the soundproof perforated plate 303 by mounting bolts 302, the soundproof cotton 301 is glued to the front side of the soundproof perforated plate 303, and the sound-absorbing plate 306 is welded to the inner side of the push-pull frame 304.

[0028] When replacing the aged sound insulation cotton 301 inside the soundproof door, the installer first uses a screwdriver to loosen the four sets of fixing bolts 5 embedded in the four sets of circular grooves of the mounting plate 4, unscrewing the fixing bolts 5 from the threaded holes at the four corners of the right side of the door body 1, so that the mounting plate 4 can be removed from the opening on the right side of the door body 1. Then, the T-shaped pull rod 305 hinged at the through groove on the right side of the push-pull bracket 304 is moved, and the T-shaped pull rod 305 is flipped upward from the through groove structure of the push-pull bracket 304. The installer can then squeeze the T-shaped pull rod by hand. Rod 305 pulls the push-pull bracket 304. At this time, the rollers 307 on the upper and lower sides of the push-pull bracket 304 roll to the right along the sliding groove structure on the upper and lower sides inside the door body 1. The push-pull bracket 304 slides out from the opening on the right side of the door body 1, completing the separation of the sound insulation inner liner device 3 from the door body 1. Then, the installer uses a screwdriver to tighten the mounting bolts 302, so that the mounting bolts 302 are unscrewed from the threaded through holes at the four corners of the front and rear sides of the push-pull bracket 304, allowing the two sets of sound insulation perforated plates 303 to be mounted on the bonded sound insulation material. The sound insulation cotton 301 is removed from the front and rear sides of the sliding frame 304. The four through holes on the two sets of sound insulation perforated plates 303, to which the new sound insulation cotton 301 is bonded, are aligned with the threaded through holes at the four corners of the front and rear sides of the sliding frame 304. Eight mounting bolts 302 are inserted into the four through holes of the two sets of sound insulation perforated plates 303 and screwed onto the threaded through holes at the four corners of the front and rear sides of the sliding frame 304. This completes the replacement and installation of the aged sound insulation cotton 301. Then, the sound insulation inner liner device with the replaced sound insulation cotton 301 is installed. 3. The roller 307 is inserted into the opening of the door body 1. Then, the push-pull bracket 304 is manually pushed and slid into the door body 1. Then, the through holes at the bottom of the four sets of circular grooves of the mounting plate 4 are connected to the four sets of threaded through holes on the right side of the door body 1. Then, the four sets of fixing bolts 5 are inserted into the circular groove through holes of the mounting plate 4 respectively. The threads on the outer side of the four sets of fixing bolts 5 are screwed into the four sets of threaded holes on the right side of the door body 1, thus completing the installation of the sound insulation inner liner device 3 inside the door body 1.

[0029] In this embodiment, the sound-absorbing panel 306 is made of high-strength aluminum alloy and consists of multiple sets of parallel hexagonal small honeycomb holes. The large number of hexagonal small honeycomb holes form a hollow support structure that pulls on each other in the sound-absorbing panel 306, which not only reduces the weight of the door 1, but also improves the support structure strength of the sound insulation inner liner device 3 for the door 1. In addition, the narrow intervals of the honeycomb holes form a multi-reflection echo. When the sound wave comes into contact with the honeycomb surface, it is repeatedly refracted in the honeycomb gaps until it is dissipated or completely absorbed, thus realizing the sound absorption function of the sound-absorbing panel 306.

[0030] In this embodiment, there are two sets of soundproof perforated plates 303, which are symmetrically distributed on the front and rear sides of the sound-absorbing plate 306. The four corners of the soundproof perforated plates 303 are provided with through holes that run through the front and rear. The mounting bolts 302 are inserted into the through holes of the soundproof perforated plates 303. The soundproof perforated plates 303 are provided with a large number of microporous structures. The microporous surface of the soundproof perforated plates 303 can effectively scatter noise at different angles, disperse the energy of the noise, and complete the sound insulation and noise reduction work on the front and rear sides of the door.

[0031] In this embodiment, the door body 1 is made of wood and has a groove structure with an opening on the right side. The upper and lower sides of the opening on the right side of the door body 1 are provided with two sets of threaded holes. The outer side of the fixing bolt 5 is threaded onto the threaded holes of the door body 1. The upper and lower sides of the groove inside the door body 1 are provided with sliding grooves. Each set of two rollers 307 is respectively embedded in the sliding groove of the door body 1, which facilitates the push-pull bracket 304 to move in a push-pull motion inside the groove of the door body 1, and makes it convenient to remove the sound insulation inner liner device 3 from the groove of the door body 1 for the replacement of the aged sound insulation cotton 301.

[0032] In this embodiment, there are two sets of support frames 2. The support frames 2 are symmetrically bonded to the front and rear sides inside the groove of the door body 1. Each set of support frames 2 has a cross-shaped structure. By attaching the support frames 2 to the front and rear sides of the door body 1 through the cross-shaped structure, the structural support strength of the front and rear surfaces of the door body 1 is enhanced, and impact deformation is prevented.

[0033] In this embodiment, the push-pull bracket 304 has threaded through holes at the four corners of its front and rear sides. The outer side of the mounting bolt 302 is threaded into the threaded through holes of the push-pull bracket 304. The right side of the push-pull bracket 304 has two sets of through slots. The front and rear sides of the through slots have through holes near the top. The two sets of through holes are opposite each other. The protrusions at both ends of the T-shaped pull rod 305 are rotatably connected to the two sets of through holes inside the through slots of the push-pull bracket 304, so that the T-shaped pull rod 305 is hinged inside the through slots of the push-pull bracket 304. During the push-pull bracket 304 push-pull process, the T-shaped pull rod 305 is held and flipped out of the through slot of the push-pull bracket 304, making the push-pull bracket 304 push-pull operation more convenient. After the push-pull bracket 304 is pushed and pulled, the T-shaped pull rod 305 is flipped back into the through slot of the push-pull bracket 304 by gravity. The space of the T-shaped pull rod 305 on the push-pull bracket 304 is used reasonably and does not occupy the space structure of the door body 1.

[0034] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient specifications of all components are based on their own technology; any method that achieves the desired effect can be implemented. The mounting bolts 302 and fixing bolts 5 used above are common commercially available components. When purchasing and using them, simply follow the instruction manual purchased with the product to connect them for use; therefore, further details are omitted here.

[0035] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A door soundproof inner liner structure, comprising a door body (1); the door body (1) is connected to a mounting plate (4) by fixing bolts (5), the mounting plate (4) has four sets of circular grooves at its four corners, each set of circular grooves has a through hole at the center of its bottom, and a support frame (2) is installed on the inner side of the door body (1); characterized in that: It also includes a soundproof inner liner device (3); the soundproof inner liner device (3) includes soundproof cotton (301), mounting bolts (302), soundproof perforated plate (303), push-pull frame (304), T-shaped tie rods (305), sound-absorbing plate (306) and rollers (307); the right side of the push-pull frame (304) is hinged with two sets of T-shaped tie rods (305), the upper and lower sides of the push-pull frame (304) are rotatably connected with two sets of rollers (307), the front and rear sides of the push-pull frame (304) are connected to the soundproof perforated plate (303) by mounting bolts (302), the front side of the soundproof perforated plate (303) is glued with soundproof cotton (301), and the inner side of the push-pull frame (304) is welded with a sound-absorbing plate (306).

2. The door soundproof inner liner structure as described in claim 1, characterized in that: The sound-absorbing panel (306) is made of high-strength aluminum alloy and consists of multiple sets of parallel hexagonal small honeycomb holes.

3. The door soundproof inner liner structure as described in claim 1, characterized in that: The number of sound insulation perforated plates (303) is two sets. The sound insulation perforated plates (303) are symmetrically distributed on the front and rear sides of the sound absorption plate (306). The four corners of the sound insulation perforated plates (303) are respectively provided with through holes that run through the front and rear. The mounting bolts (302) are inserted into the through holes of the sound insulation perforated plates (303). The sound insulation perforated plates (303) are provided with a large number of microporous structures.

4. The door soundproof inner liner structure as described in claim 1, characterized in that: The door body (1) is made of wood. The door body (1) is a groove structure with an opening on the right side. The upper and lower sides of the opening on the right side of the door body (1) are provided with two sets of threaded holes. The outer side of the fixing bolt (5) is threaded onto the threaded hole of the door body (1). The upper and lower sides of the groove inside the door body (1) are provided with sliding grooves. Each set of two rollers (307) is respectively embedded in the sliding groove of the door body (1).

5. The door soundproof inner liner structure as described in claim 1, characterized in that: The number of support frames (2) is two sets. The support frames (2) are symmetrically bonded to the front and rear sides of the groove inside the door body (1). Each set of support frames (2) has a cross-shaped structure.

6. The door soundproof inner liner structure as described in claim 1, characterized in that: The push-pull bracket (304) has threaded through holes at the four corners of its front and rear sides. The outer threads of the mounting bolts (302) are screwed into the threaded through holes of the push-pull bracket (304). The right side of the push-pull bracket (304) has two sets of through slots. The front and rear sides of the through slots have through holes near the top. The two sets of through holes are opposite each other. The protrusions at both ends of the T-shaped pull rod (305) are rotatably connected to the two sets of through holes inside the through slots of the push-pull bracket (304), so that the T-shaped pull rod (305) is hinged inside the through slots of the push-pull bracket (304).

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