Sound-proof door structure convenient to open and close for high-standard mute room

Abstract

The utility model belongs to the technical field of soundproof doors, and particularly relates to a soundproof door structure convenient to open and close for a high-standard mute room, which comprises a mute room body, a passage is arranged on one side of the mute room body, the inside and the outside of the passage are respectively connected with a soundproof door in an opening and closing manner, and at least one of the two soundproof doors is provided with a silencer structure. The silencer structure is arranged in the door in a wrapping mode, an air channel is formed in the silencer structure, an opening is formed in one end of the air channel and located on one side of the door, and an opening is formed in the other end of the air channel and located on the other side of the door. The sound insulation door can be smoothly closed, and complex construction is not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound insulation doors, and in particular relates to a sound insulation door structure which is convenient for opening and closing in a high-standard silent room. Background Art

[0002] In the building envelope, doors and windows are the weak links of sound insulation. The reason why doors are the poorest parts of the wall in terms of sound insulation is that they are usually lighter than walls, and their gaps are the way to transmit airborne sound. In addition, their area is smaller than that of walls, which causes their low-frequency resonance to often occur in the key range of the audio spectrum. Therefore, attention must be paid to sound insulation. The sound insulation performance of doors depends on the sound insulation capacity of the door leaf itself (such as the weight and composition of the door leaf) and the tightness of the door gap. Although increasing the weight and thickness of the door can improve the sound insulation performance of the door, it is inconvenient to open it, and the hinge of the door is prone to cause downward inclination, which increases the door gap and affects the sound insulation effect. Single-layer sound insulation doors, even if they use complex multi-layer composite doors, do not have high sound insulation. For buildings with special sound insulation requirements, such as silent test rooms, recording studios, broadcasting studios, and technical rooms such as hospital otolaryngology audiometry rooms, they usually cannot meet the sound insulation requirements. In order to further improve the sound insulation performance of doors, especially doors that need to be opened and closed frequently, an effective method is to set up double doors, such as CN200520121484.1 or CN 202221686161.7, and configure strong sound-absorbing materials between the double doors to absorb as much of the external noise that has been transmitted to the first door as possible, that is, to form a so-called "sound gate", also known as a "sound lock". This measure can often make the total sound insulation capacity reach the sum of the sound insulation of the two doors, just like a double wall, and the air layer between the two doors obtains a large additional sound insulation.

[0003] However, it is often difficult to close the other door after closing one of the two doors. The reason is that the soundproof door usually has a good sealing effect in order to ensure the sound insulation. When one door is closed, the air layer between the two doors will be compressed when the other door is closed. The air pressure makes it difficult for the second door to be closed quickly. There may even be a phenomenon that the first door is pushed open by the air pressure, which may cause the user to forcefully close it, causing damage to the soundproof door, door frame and hardware used for connection, thus affecting the service life of the soundproof door and causing the background noise of the silent room to fail to meet the standard.

[0004] CN201810333102.3 proposes a solution, in which a pipe is set in the interlayer between the two doors to connect to the outside for exhaust, so as to solve the above-mentioned problem. However, its disadvantage is that it requires the cooperation of civil engineering construction to bury and lay the exhaust pipe, which makes the construction troublesome. Utility Model Content

[0005] In order to solve the problem that the second soundproof door is difficult to close and the solution of the prior art is complicated to construct, the utility model provides a soundproof door structure for a high-standard silent room which is easy to open and close.

[0006] The purpose of the utility model is achieved in the following way: a soundproof door structure for a high-standard silent room that is easy to open and close is arranged on a silent room body 1, a channel is arranged on one side of the silent room body 1, and a soundproof door 2 is connected to the inside and outside of the channel in an opening and closing manner, at least one of the two soundproof doors 2 is provided with a muffler structure 4, the muffler structure 4 is covered and arranged in the door, an air duct 41 is formed in the muffler structure 4, one end of the air duct 41 forms an opening on one side of the door, and the other end of the air duct 41 forms an opening on the other side of the door.

[0007] Furthermore, the muffler structure 4 is a resistive muffler structure.

[0008] Furthermore, the muffler structure 4 is vertically arranged, and two ends of the air duct 41 form openings at the upper part and the lower part of the sound insulation door 2 respectively.

[0009] Furthermore, the upper opening of the soundproof door 2 faces the interlayer between the two soundproof doors, and the lower opening of the soundproof door 2 faces the inside or outside of the soundproof room body 1 .

[0010] Furthermore, a baffle 5 is provided at the opening, and a mesh structure is provided on the baffle 5 .

[0011] Furthermore, the minimum cross-sectional area of ​​the air duct 41 is greater than or equal to 1 / 4 of the cross-sectional area of ​​the sound insulation door.

[0012] Compared with the prior art, the utility model provides a muffler structure on at least one of the two soundproof doors, which sacrifices a certain amount of sound insulation in exchange for smooth closing of the soundproof door without the need for complicated construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a soundproof room;

[0014] Figure 2 This is a top view of the silent room;

[0015] Figure 3 It is a side sectional view of the soundproof door;

[0016] Figure 4 This is a structural diagram of one side of the soundproof door;

[0017] Figure 5 is with Figure 4 The structural diagram of the other side of the opposite soundproof door;

[0018] Figure 6 It is a transverse cross-sectional view of the soundproof door.

[0019] Among them, the soundproof room body 1, the soundproof door 2, the muffler structure 4, the air duct 41, and the baffle 5. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the present utility model, unless otherwise expressly specified and limited, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0022] As attached Figure 1-3 As shown, a soundproof door structure of a high-standard silent room that is easy to open and close is arranged on a silent room body 1. A channel is arranged on one side of the silent room body 1. A soundproof door 2 is opened and closed at the inside and outside of the channel respectively. At least one of the two soundproof doors 2 is provided with a muffler structure 4. The muffler structure 4 is covered and arranged in the door. An air duct 41 is formed in the muffler structure 4. One end of the air duct 41 forms an opening on one side of the door, and the other end of the air duct 41 forms an opening on the other side of the door.

[0023] The above-mentioned "opening and closing connection" can be used for a conventional rotating opening and closing sound insulation door 2 hinged by hinges, and the main use scenario of this application is also this case; but it can also be used for a translational opening and closing sound insulation door 2. For this case, although the sound insulation door moves translationally, in order to ensure the sound insulation effect, the sound insulation door 2 is often further pressed against the door frame by a power element when it is translated into place, and exhaust is also required at this time.

[0024] Furthermore, the muffler structure 4 is preferably a resistive muffler structure, which is a mature prior art. Specifically, a cavity is formed in the soundproof door 2, and a resistive sheet structure is arranged in the cavity, which is a porous sound-absorbing material. The present application does not make any improvements that deviate from the prior art in terms of the size and structure of the resistive sheet structure; the resistive muffler structure is not used because the structure is not conducive to the passage of air.

[0025] CN202021458385.3 proposes a single-leaf soundproof door 2, on which a horizontal muffler is arranged, the purpose of which is to ensure the ventilation effect. The present application is different from this. The present application only solves the problem of smooth closing of the soundproof door, and only needs to ensure that the air meets the most basic circulation. Therefore, the muffler structure 4 is arranged vertically, and the two ends of the air duct 41 form openings at the upper and lower parts of the soundproof door 2 respectively.

[0026] Further, as attached Figure 4-6 As shown, the upper opening of the soundproof door 2 faces the interlayer between the two soundproof doors, and the lower opening of the soundproof door 2 faces the inside or outside of the soundproof room body 1, so that when the door is closed, the air flows from top to bottom in the muffler structure 4, and the door is easier to close. When opening the door, relatively greater force is used, and the harm to the soundproof door 2 is small or even negligible.

[0027] Furthermore, a baffle 5 is provided at the opening, and a mesh structure is provided on the baffle 5. The baffle 5 is used to prevent some large pieces of garbage and impurities from entering the muffler structure 4 to cause damage and be difficult to clean. The baffle 5 can be an integrally formed with the door panel or an independent plate structure with air holes, or it can be a steel wire woven mesh.

[0028] Furthermore, the minimum cross-sectional area of ​​the air duct 41 is greater than or equal to 1 / 4 of the cross-sectional area of ​​the sound insulation door 2, which means that the silencer structure 4 is uneven or the resistive sheet structure is uncertain, and the cross-sectional area of ​​each part of the air duct 41 is different. In actual use, it is found that when the minimum cross-sectional area of ​​the air duct 41 (affecting the air flow efficiency) is lower than 1 / 4 of the cross-sectional area of ​​the sound insulation door 2, at the normal door closing speed, the door closing is still slightly obstructed (will pause), but when it is higher than this value, it will affect the effective sound insulation of the sound insulation door 2, so the optimal value is 1 / 4~3 / 5.

[0029] The sound attenuation of the conventional soundproof door 2 is 50 dB(A)~60 dB(A), and the sound attenuation of the soundproof door 2 with the silencer structure 4 is reduced to 35dB(A)~40 dB(A). However, due to the two-door structure, the reduction has little effect on the overall sound insulation capacity, in exchange for better convenience of use.

[0030] The muffler structure 4 can adopt the muffler structure of the prior art, preferably the CN201811102416.9 proposed by the applicant, the array muffler and its special-shaped muffler unit.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. A soundproof door structure for a high-standard soundproof room that is easy to open and close, which is arranged on a soundproof room body (1), a channel is arranged on one side of the soundproof room body (1), and a soundproof door (2) is connected to the inside and outside of the channel in an openable manner, and is characterized by: At least one of the two soundproof doors (2) is provided with a muffler structure (4), the muffler structure (4) being enclosed and arranged inside the door, an air duct (41) being formed inside the muffler structure (4), one end of the air duct (41) forming an opening on one side of the door, and the other end of the air duct (41) forming an opening on the other side of the door.

2. A soundproof door structure for a high-standard soundproof room that is easy to open and close as claimed in claim 1, characterized in that: The muffler structure (4) is a resistive muffler structure.

3. A soundproof door structure for a high-standard soundproof room that is easy to open and close as claimed in claim 1, characterized in that: The muffler structure (4) is arranged vertically, and two ends of the air duct (41) form openings at the upper part and the lower part of the sound insulation door (2), respectively.

4. A soundproof door structure for a high-standard soundproof room that is easy to open and close as claimed in claim 3, characterized in that: The upper opening of the soundproof door (2) faces the interlayer between the two soundproof doors, and the lower opening of the soundproof door (2) faces the inside or outside of the soundproof room body (1).

5. A soundproof door structure for a high-standard soundproof room that is easy to open and close as claimed in claim 3, characterized in that: A baffle (5) is arranged at the opening, and a mesh structure is arranged on the baffle (5).

6. A soundproof door structure for a high-standard soundproof room that is easy to open and close as claimed in claim 3, characterized in that: The minimum cross-sectional area of ​​the air duct (41) is greater than or equal to 1 / 4 of the cross-sectional area of ​​the sound insulation door in which it is located.

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