Door frame structure of high-sound-insulation fireproof door

Abstract

The utility model discloses a door frame structure of a high-sound-insulation fireproof door, and aims to provide the door frame structure of the high-sound-insulation fireproof door, which is reasonable in structural design and capable of effectively obstructing a sound transmission path, and comprises a door frame, and a sound absorption component is arranged on one side, opposite to a wall body, of the door frame. The door frame comprises a first notch side wall and a second notch side wall which are integrally formed in a bent mode, a plurality of silencing holes are evenly formed in the first notch side wall and the second notch side wall, and the first notch side wall and the second notch side wall are concave inwards and form adhesive tape clamping grooves. The sound absorption assembly comprises a sound absorption net arranged on the silencing holes in a blocking mode, sound absorption cotton arranged in the sound absorption net and a limiting piece for limiting the sound absorption cotton to fall off, and the sound absorption cotton is laid on the side wall of the first notch and the side wall of the second notch.

Description

Technical Field

[0001] The utility model relates to the technical field of doors, in particular to a high sound insulation and fireproof door frame structure. Background Technique

[0002] A door is a movable partition on the access passage of a building and its rooms. Except for the fence door used for opening safety, generally, a door can also play roles such as air convection, light shielding, heat insulation, and sound insulation. Since the door needs to be opened and closed frequently, generally, the door leaf should not be made too thick or too heavy, and the door gap should not be made too tight, otherwise it will cause inconvenience to opening and closing. For quiet rooms that require no noise interference and rooms that require the noise in the room not to spread outward so as to interfere with the surrounding environment, since the sound insulation of the door is often much lower than that of the wall, it has become a weak link in the building sound insulation of such rooms.

[0003] A sound insulation door is a noise reduction measure to prevent external noise from entering the building and high noise in the building from spreading outward, through a building sound insulation component specially designed, manufactured and installed. The main difference between it and an ordinary door lies in the requirement of sound insulation performance. The weighted sound insulation amount of a sound insulation door should be above 40 dB.

[0004] Sound insulation doors are mainly used in recording studios, broadcasting studios, studios, audition rooms for radio, film, television, and audio products, etc.; anechoic rooms, reverberation rooms, sound insulation rooms, audiometry rooms, etc. in acoustic laboratories; concert halls, cinemas, multi-functional halls, high-class meeting rooms, etc. in public buildings; control rooms, machine sound insulation rooms, machine sound insulation covers, etc. in high-noise workshops in industrial and mining enterprise buildings. Such buildings require low noise in the room because excessive noise directly affects the sound quality of broadcasting, singing, playing, and audio products (such as audio tapes and CDs). The noise in the acoustic laboratory is related to the measurement accuracy. The sound insulation of high-noise electromechanical equipment machine rooms can prevent the noise from harming the health of operators on the one hand, and on the other hand, it does not pollute the surrounding environment and does not affect people's life, work and study. And most of such spaces that require high sound insulation also need to have fire prevention requirements. Therefore, it is very necessary to design and develop a high sound insulation and fireproof door with a simple appearance and easy opening and closing. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a high sound insulation and fireproof door frame structure with reasonable structural design and capable of effectively blocking the sound transmission path.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A high sound insulation and fireproof door frame structure includes a door frame framework. On one side of the door frame framework opposite to the wall, there is a sound absorption component. The door frame framework includes a first notch side wall and a second notch side wall formed by integral bending. A number of sound absorption holes are evenly arranged on the first notch side wall and the second notch side wall. The first notch side wall and the second notch side wall are concave and form a rubber strip clamping groove. The sound absorption component includes a sound absorption net blocking the sound absorption holes, a sound absorption cotton arranged in the sound absorption net, and a limiting member for preventing the sound absorption cotton from falling off. The sound absorption cotton covers the first notch side wall and the second notch side wall.

[0008] Preferably, the limiting member is a sound absorption buckle, and the sound absorption buckle is buckled on the sound absorption cotton.

[0009] Preferably, the limiting member is a sound absorption baffle, and the sound absorption baffle covers the sound absorption cotton.

[0010] Preferably, a composite sealing rubber strip is embedded in the rubber strip clamping groove, and the composite sealing rubber strip includes an airbag sealing part and a wing sealing part.

[0011] Preferably, the plurality of sound absorption holes are arranged in a vertical offset manner, and the porosity of each sound absorption hole is 20% - 40%.

[0012] Preferably, the door frame framework is integrally bent and formed by 2.0mm cold-rolled steel plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the high sound insulation and fireproof door frame structure of the present invention, through the arrangement of the sound absorption holes and the sound absorption component, the propagation of sound waves from the door frame and the gap between the door frame and the wall is avoided. Through the arrangement of the rubber strip clamping groove and the matching composite sealing rubber strip, the propagation of the gap between the four peripheral edges of the door leaf and the door frame is avoided. The structure design is reasonable and the sound insulation effect is excellent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the high sound insulation and fireproof door frame structure of the present invention;

[0016] Figure 2 is the present invention Figure 1 a cross-sectional view taken along the line A-A in;

[0017] Figure 3 is the present invention Figure 1 a cross-sectional view taken along the line B-B in;

[0018] Figure 4 is the present invention Figure 1 another cross-sectional view of the A-A direction in;

[0019] Figure 5 is the present inventionFigure 2 Partial enlarged view of C. Specific implementation mode

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 5 , a high sound insulation and fireproof door frame structure, including a door frame framework 1. On one side of the door frame framework 1 opposite to the wall 100, there is a sound absorption component 2. The door frame framework 1 includes a first notch side wall 11 and a second notch side wall 12 formed by integral bending. The first notch side wall 11 and the second notch side wall 12 are used for the installation of a door leaf (not shown in the figure). A number of sound absorption holes 3 are evenly arranged on the first notch side wall 11 and the second notch side wall 12. The first notch side wall 11 and the second notch side wall 12 are concave and form a rubber strip clamping groove 4. The rubber strip clamping groove 4 is a double-channel sealed installation notch for installing a composite sealing rubber strip. The sound absorption component 2 includes a sound absorption net 21 blocking the sound absorption holes 3, a sound absorption cotton 22 arranged inside the sound absorption net, and a limiting member 23 for preventing the sound absorption cotton 22 from falling off. The sound absorption cotton 22 covers the first notch side wall 11 and the second notch side wall 12. The sound absorption net 21 is a fine wire mesh, which avoids the sound absorption cotton 22 leaking out from the sound absorption holes 3 and affecting the overall aesthetics. Sound passes through the sound absorption holes 3 and enters the sound absorption cotton 22 for blocking and sound absorption. The setting of the sound absorption component 2 avoids the propagation of sound waves from the door frame and the gaps between the door frame and the wall. The structural design is reasonable and the sound insulation effect is excellent.

[0022] Specifically refer to Figure 4 : The limiting member 23 is a sound absorption buckle 23a. The sound absorption buckle 23a is buckled on the sound absorption cotton 22. The sound absorption buckle 23a ensures that the sound absorption cotton 22 is firmly filled and prevents it from falling off, effectively blocking the propagation of sound waves from the door frame and the gaps between the door frame and the wall.

[0023] Specifically refer to Figure 2 : The limiting member 23 is a sound absorption baffle 23b. The sound absorption baffle 23b covers the sound absorption cotton 22. The sound absorption baffle 23b also ensures that the sound absorption cotton 22 is firmly filled and prevents it from falling off, effectively blocking the propagation of sound waves from the door frame and the gaps between the door frame and the wall.

[0024] A composite sealing strip 5 is embedded in the rubber strip slot 4. The composite sealing strip 5 includes an airbag sealing part 51 and a fin sealing part 52. The composite sealing strip 5 adopts a composite fireproof ethylene propylene diene monomer (EPDM) sealing strip. One sealing strip has an airbag sealing part 51 and a fin sealing part 52 to achieve the effect of two sealing strips, and also has fireproof expansion ability. It has good fireproof effect and can effectively block the transmission of sound waves from the gap between the four edges of the door leaf and the door frame.

[0025] A number of sound-absorbing holes 3 are arranged in a staggered manner up and down, and the sound-absorbing effect is better. The porosity of each sound-absorbing hole is 20% - 40%. The size of the aperture and hole pitch of the sound-absorbing holes 3 also need to be designed according to different sound insulation places. The smaller the aperture, the better the sound absorption effect on low-frequency sounds; the larger the aperture, the better the sound absorption effect on high-frequency sounds; the larger the hole pitch, the better the sound absorption effect on low-frequency sounds. At the same time, the sound-absorbing holes 3 also slow down the heat conduction and can improve the fire resistance and heat insulation performance of the door frame.

[0026] The door frame frame 1 is integrally bent and formed by a 2.0 mm cold-rolled steel plate, and the integrally bent and formed frame has high strength.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high sound insulation and fireproof door frame structure, comprising a door frame framework, characterized in that: One side of the door frame relative to the wall is provided with a sound-absorbing component. The door frame includes a first notch side wall and a second notch side wall which are integrally bent and formed. A plurality of sound-damping holes are evenly arranged on the first notch side wall and the second notch side wall. The first notch side wall and the second notch side wall are concave and form a rubber strip clamping groove. The sound-absorbing component includes a sound-absorbing net blocking the sound-damping holes, a sound-absorbing cotton arranged in the sound-absorbing net, and a limiting member for preventing the sound-absorbing cotton from falling off. The sound-absorbing cotton covers the first notch side wall and the second notch side wall.

2. The frame structure of a highly sound-insulating and fireproof door according to claim 1, characterized in that: The limiting member is a sound-absorbing buckle, and the sound-absorbing buckle is buckled on the sound-absorbing cotton.

3. The frame structure of a high sound-insulating and fire-proof door according to claim 1, characterized in that: The limiting member is a sound-absorbing baffle, and the sound-absorbing baffle covers the sound-absorbing cotton.

4. A high sound insulation and fireproof door frame structure according to claim 1, characterized in that: A composite sealing rubber strip is embedded in the rubber strip clamping groove. The composite sealing rubber strip includes an airbag sealing part and a wing sealing part.

5. The frame structure of a high sound insulation and fireproof door according to claim 1, characterized in that: The plurality of sound-damping holes are arranged in a vertically staggered manner, and the porosity of each sound-damping hole is 20% - 40%.

6. A high sound insulation and fireproof door frame structure according to any one of claims 1 to 5, characterized in that: The door frame is integrally bent and formed by using 2.0 mm cold-rolled steel plate.

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