CN219034550U

CN219034550U - Primary and secondary soundproof door with sound insulation performance

Info

Publication number: CN219034550U
Application number: CN202320124226.7U
Authority: CN
Inventors: 任波宇; 刘孝晨; 李运苓
Original assignee: Henan Yuanhang Sound Insulation Material Technology Co ltd
Current assignee: Henan Yuanhang Sound Insulation Material Technology Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-05-16
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses a primary-secondary soundproof door with soundproof performance, which can effectively solve the problems that the cost of a primary-secondary door gap soundproof structure is high and the structural strength of a door plate is influenced; the gaps between the child door and the parent door are provided with sound insulation components; the sound insulation assembly comprises an air bag strip formed by the edge surface of the door plate and the flexible layer, and the thickness of the middle part of the air bag strip is larger than that of the two sides. The beneficial effects are that: the sound insulation component comprises an air bag strip formed by the edge surface of the door plate and the flexible layer, and the thickness of the middle part of the air bag strip is larger than that of the two sides; this device is after closed sub-door and female door, and the flexible layer contact in the centre, the atmospheric pressure in the gasbag increases, and the flexible layer on both sides receives the influence of atmospheric pressure to bulge to flexible layer on the sub-door can be contacted with the flexible layer on the female door, will make two gasbag strips produce three contact surface like this, very big increase the sound insulation effect, and this sound insulation structure is simple, processing is convenient, and material cost is extremely low.

Description

Primary and secondary soundproof door with sound insulation performance

Technical Field

The utility model relates to a primary-secondary soundproof door with soundproof performance, and belongs to the field of soundproof doors.

Background

The primary and secondary doors are special double-door opposite-door doors and consist of a door leaf (primary door) with a narrow width and a door leaf (secondary door) with a wider width; in the use process, the primary and secondary doors are very convenient, because only one door needs to be opened to facilitate the access, and if a large part of access exists, two doors can be opened simultaneously, so that the door is convenient to use. And secondly, the primary and secondary doors are very atmospheric in appearance, so that the integral home decoration becomes more three-dimensional and has more modeling sense.

But the primary and secondary doors are different from the existing single door because two hinged door plates are arranged,

the Chinese patent with publication number of CN207794987U discloses a matching mode of a neutron door and a mother door of a fireproof, anti-prying and sound-proof son-mother door, wherein the matching surface of the neutron door and the mother door utilizes a step groove of a door plate on one side and a sealing side plate corresponding to the door plate on the other side, and in addition, the matching surface of the step groove and the sealing side plate is additionally provided with a sealing elastic piece, a sealing notch and other structures, so that the matching gap between the son door and the mother door is greatly reduced, and the anti-theft, sealing and sound-proof performance is improved.

However, in the utility model, the edges of the sub-door and the main door are arranged in a stepped shape, and although the sound insulation effect of the door gap between the sub-door and the main door can be improved by utilizing the stepped matching relationship, the thickness of the door is reduced at the edge of the stepped door plate, so that the door plate is easy to break, and a plurality of stepped surfaces are required to be added during processing, and the steps are required to be subjected to multiple cutting, rough grinding and fine grinding procedures, so that the processing cost is increased.

Disclosure of Invention

The utility model aims to provide a primary-secondary soundproof door with soundproof performance, which can effectively solve the problems that the cost of a primary-secondary door gap soundproof structure is high and the structural strength of a door plate is influenced.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

comprises a door frame, a sub-door and a main door which are hinged on the door frame; a sound insulation assembly is arranged at the gap between the sub door and the main door; the sound insulation assembly comprises an air bag strip formed by a door plate edge surface and a flexible layer, and the thickness of the middle part of the air bag strip is larger than that of the two sides.

Further: the middle part of the air bag strip is provided with a high-strength flexible layer, and the two sides of the air bag strip are provided with low-strength flexible layers.

Further: the flexible layer material adopts one of rubber, plastic and silica gel.

Further: the airbag strip also includes a sealing strip on one side of the low strength flexible layer.

Further: the side opposite to the sub-door and the main door is provided with a mounting plate, and the sound insulation assembly is fixed on the mounting plate.

The beneficial effects are as follows:

the sound insulation component comprises an air bag strip formed by the edge surface of the door plate and the flexible layer, and the thickness of the middle part of the air bag strip is larger than that of the two sides; this device is after closed sub-door and female door, and the flexible layer contact in the centre, the atmospheric pressure in the gasbag increases, and the flexible layer on both sides receives the influence of atmospheric pressure to bulge to flexible layer on the sub-door can be contacted with the flexible layer on the female door, will make two gasbag strips produce three contact surface like this, very big increase the sound insulation effect, and this sound insulation structure is simple, processing is convenient, and material cost is extremely low.

Drawings

For ease of illustration, the utility model is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic view of the structure of the sub-door and the main door of the present utility model when they are not closed;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic view of the structure of the sub-door and the main door after the sub-door and the main door are closed;

fig. 4 is an enlarged view at B in fig. 3.

Reference numerals illustrate:

1. a sub-gate; 2. a parent door; 3. a sound isolation assembly; 4. a flexible layer; 41. a high strength flexible layer; 42. a low strength flexible layer; 5. an airbag strip; 6. a mounting plate; 7. and (5) a sealing strip.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to figures 1-4 of the drawings for one embodiment of a primary and secondary soundproof door having soundproof performance in accordance with the present utility model,

comprises a door frame, a sub door 1 and a main door 2 hinged on the door frame.

The sound insulation door structure in the device is a primary and secondary door which is generally arranged in a courtyard or a living room, the primary and secondary door is required to have a sound insulation effect when arranged in the living room, and the indoor sound insulation effect is required to reach 22-25 dB according to regulations;

in the device, the door frame material is loose wood, the primary and secondary door materials are solid wood composite boards prepared by a pressing process, a layer of density board is paved in the solid wood composite boards, the density board mainly improves the structural strength of the door plate, and on the other hand, the high-density boards have good sound insulation effect; and a layer of sound-absorbing cotton board is also arranged in the solid wood composite board and is specially used for absorbing sound.

The solid wood part in the solid wood composite board can be selected from cherry, maple, teak, oak, ash, pine, hemlock, etc. according to the price.

A sound insulation component 3 is arranged at the gap between the sub door 1 and the main door 2; the sound insulation assembly 3 comprises an air bag strip 5 formed by a door plate edge surface and a flexible layer 4, and the thickness of the middle part of the air bag strip 5 is larger than that of two sides.

When the primary door and the secondary door are used, the primary door 1 is closed, and the secondary door 2 is closed; the air bag strips 5 on the sub-door 1 and the air bag strips 5 on the main door are contacted, then the air bag strips 5 are extruded, and the contact surfaces of the two air bag strips 5 are pressed together by utilizing the pressure of air in the air bag strips 5, so that the sound insulation effect is achieved.

When the air bag strip 5 is under pressure, air pressure can be uniformly pressed on the inner wall of the air bag strip 5, and the thickness of the middle part of the air bag strip 5 is larger than that of the two sides, namely the thickness of the flexible layer 4 at the middle part is larger than that of the flexible layers 4 at the two sides; the middle of the air bag strip 5 has higher compression deformation resistance than the two sides, so that the flexible layer 4 at the middle part is smaller in deformation by the air pressure, and the flexible layers 4 at the two sides are larger in deformation.

According to experiments and measurement, the thicknesses of door plates of the child door 1 and the parent door 2 of the device are 5cm, the airbag strips 5 are not compacted normally, the bulge height of the middle part is 50mm, the length of the section of the flexible layer 4 of the middle part is 70mm, and the lengths of the flexible layers 4 of the two sides are 35mm; the arc angle of the flexible layer 4 at the middle part is 60 degrees when the flexible layer bulges;

under the conditions of the experiment and the measurement, after the data of the flexible layers 4 in the air bag strips 5 are determined, the sub-door 1 and the main door 2 are closed, the flexible layers 4 on two sides are impacted by air pressure and are bulged, and the flexible layers 4 on the sub-door 1 are contacted with the flexible layers 4 on the main door 2, so that three contact surfaces are generated on the two air bag strips 5, and the sound insulation effect is greatly improved.

The middle part of the air bag strip 5 is provided with a high-strength flexible layer 41, and two sides of the air bag strip are provided with low-strength flexible layers 42.

The high-strength flexible layer 41 and the low-strength flexible layer 42 are made of the same main material, the experimental material of the device is rubber, and the difference between the high-strength flexible layer 41 and the low-strength flexible layer 42 is the tensile strength; the impact of the vulcanization crosslinking density and the crosslinking bond type of the rubber product on the tensile strength is great.

Generally, a sulfur vulcanization system is adopted, the sulfur dosage can be properly increased, simultaneously, the accelerator is selected from thiazoles such as accelerator M/DM and guanidine, and the dosage is properly increased, so that the tensile strength of the product is improved.

The high strength flexible layer 41 is prepared with more accelerator than the low strength flexible layer 41.

The airbag strip 5 further comprises a sealing strip 7 on one side of the low strength flexible layer 4. The sealing strips 7 are connected with the front side and the rear side of the air bag strip 5, and the sealing strips 7 are adhered to the edge surface of the door plate and are fixed again by using straight nails, so that the tightness of the air bag is improved.

The opposite sides of the sub-door 1 and the main door 2 are provided with a mounting plate 6, and the sound insulation assembly 3 is fixed on the mounting plate 6.

The above embodiments are merely illustrative embodiments of the present utility model, but the technical features of the present utility model are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present utility model are included in the scope of the present utility model.

Claims

1. A primary and secondary soundproof door with soundproof performance comprises a door frame, a primary door (1) and a secondary door (2) hinged on the door frame; the method is characterized in that: a sound insulation component (3) is arranged at the gap between the sub door (1) and the main door (2); the sound insulation assembly (3) comprises an air bag strip (5) formed by a door plate edge surface and a flexible layer (4), and the thickness of the middle part of the air bag strip (5) is larger than that of the two sides.

2. The primary and secondary soundproof door with soundproof performance according to claim 1, characterized in that: the middle part of the air bag strip (5) is provided with a high-strength flexible layer (41), and two sides of the air bag strip are provided with low-strength flexible layers (42).

3. The primary and secondary soundproof door with soundproof performance according to claim 2, characterized in that: the flexible layer (4) is made of one of rubber, plastic and silica gel.

4. A primary and secondary soundproof door having soundproofing performance according to claim 3, characterized in that: the airbag strip (5) further comprises a sealing strip (7) located on one side of the low-strength flexible layer (42).

5. The primary and secondary soundproof door with soundproof performance according to claim 1, characterized in that: the sound insulation door is characterized in that a mounting plate (6) is arranged on the opposite side of the sub-door (1) and the main door (2), and the sound insulation assembly (3) is fixed on the mounting plate (6).