Noise-reducing steel fire-rated door frame

Abstract

The utility model provides a noise-reducing steel fireproof door frame, including a door frame top strip, a first door frame side strip and a second door frame side strip. One end of the first door frame side strip and one end of the second door frame side strip are combined with two ends of the door frame top strip through an installation mechanism; the installation mechanism includes two plug-in joints, two metal plug posts, two column sleeves and two adhesive discs. Both ends of the door frame top strip are provided with limiting slots corresponding to the plug-in joints. The two column sleeves are welded inside the two limiting slots. The two adhesive discs are arranged inside the two column sleeves. One end of the two metal plug posts is installed inside the two plug-in joints through threads. The utility model is combined with two ends of the door frame top strip at one end of the first door frame side strip and one end of the second door frame side strip through an installation mechanism. The installation mechanism includes two plug-in joints, two metal plug posts, two column sleeves and two adhesive discs, which is convenient for better combined connection and has good assembly convenience and installation firmness.

Description

Technical Field

[0001] The utility model belongs to the technical field of fireproof door frames and relates to a noise-reducing steel fireproof door frame. Background Art

[0002] As a special-purpose door, fire doors not only have the functions of ordinary doors, but also have the special function of preventing the spread of fire and smoke. Wooden fire doors are mainly composed of door frames, door leaf frames, door leaf panels, door leaf fillers, fireproof hardware accessories, fireproof expansion sealing strips, etc. Among them, the door frame, door leaf frame and door leaf panel are required to be made of wood materials that have been treated with flame retardant; a Chinese patent with announcement number CN201412050Y discloses a fire door frame, including a frame, and the outer surface of the frame has a fireproof inorganic gelling material coating, the inorganic gelling material coating is formed by on-site casting, and the thickness of the inorganic gelling material is greater than 4 mm and less than 10 mm.

[0003] The above-mentioned door frame has the disadvantages of poor assembly effect of the door frame structure and insufficient noise reduction. Therefore, we design a noise-reducing steel fireproof door frame. Summary of the invention

[0004] The utility model aims to provide a noise-reducing steel fireproof door frame to solve the problems raised in the above-mentioned background technology.

[0005] The purpose of the utility model can be achieved by the following technical solutions: a noise-reducing steel fireproof door frame, comprising a door frame top strip, a first door frame side strip and a second door frame side strip, wherein one end of the first door frame side strip and one end of the second door frame side strip are combined with two ends of the door frame top strip through a mounting mechanism;

[0006] The installation mechanism includes two plug-in joints, two metal plug-in columns, two column sleeves and two adhesive plates. The two ends of the door frame top strip are provided with limit slots corresponding to the plug-in joints. The two column sleeves are welded inside the two limit slots. The two adhesive plates are arranged inside the two column sleeves. One end of the two metal plug-in columns is installed inside the two plug-in joints by threads. The other ends of the two metal plug-in columns are inserted into the corresponding column sleeves and connected to the adhesive plates. The inner side walls of the two column sleeves are provided with compression spring segments. One end of the two compression spring segments is provided with a limit tongue plate. The limit tongue plate is extruded and connected with the metal plug-in column.

[0007] One side of the first door frame side strip and one side of the second door frame side strip are both provided with a wall connecting slot, the top end of the first door frame side strip and the top end of the second door frame side strip are both provided with a sound insulation component slot connected to the wall connecting slot, a glass fiber sound insulation shell is provided on the inner side of the sound insulation component slot, rock wool strips are provided on the inner side of the two glass fiber sound insulation shells, and ceramic sound insulation strips are provided on the bottom of the two rock wool strips.

[0008] In the above-mentioned noise-reducing steel fireproof door frame, a sealing connection strip is provided on the other side of the first doorframe side strip and the other side of the second doorframe side strip, and a first installation cavity and a second installation cavity are provided inside the two sealing connection strips, and an expanded graphite strip is provided inside the two second installation cavities. The purpose of such arrangement is to have good sealing performance, and when a fire occurs, the expanded graphite strip expands rapidly due to heat and expands to the second installation cavity, so that the sealing connection strip fits tightly with the fireproof door and the first doorframe side strip and the second doorframe side strip to prevent the entry of smoke.

[0009] In the above-mentioned noise-reducing steel fireproof door frame, elastic connectors are arranged inside the two first installation cavities, and the two elastic connectors are respectively in contact with and connected to the first door frame side strip and the second door frame side strip, and the two elastic connectors are PU foams. The purpose of such arrangement is to ensure good connection stability, so that the two sealing connection strips are not easy to fall off.

[0010] In the above-mentioned noise-reducing steel fireproof door frame, rubber gaskets are arranged at the side walls of the two limit slots, and the rubber gaskets are in contact with the plug connector. The purpose of such arrangement is to increase the firmness and friction strength of the connection between the plug connector and the limit slot, so that the plug connector has a higher connection strength after docking.

[0011] In the above-mentioned noise-reducing steel fireproof door frame, the other end of the first door frame side strip and the other end of the second door frame side strip are both provided with a door shaft installation floor. The purpose of such a setting is to facilitate the installation of the door shaft and the connection with the fireproof door, without the need to open holes on the first door frame side strip and the second door frame side strip, thereby ensuring the overall aesthetics of the first door frame side strip and the second door frame side strip.

[0012] Compared with the prior art, the advantages of the noise-reducing steel fireproof door frame of the utility model are as follows: one end of the first door frame side strip and one end of the second door frame side strip are combined with the two ends of the door frame top strip through an installation mechanism, and the installation mechanism includes two plug-in joints, two metal plug posts, two column sleeves and two adhesive plates, which are convenient for better combination and connection, and have good assembly convenience and installation firmness; by arranging a glass fiber sound insulation shell, rock wool strips and ceramic sound insulation strips, it has a good sound insulation effect and reduces the impact of noise; by arranging a sealing connecting strip, a first installation cavity and a second installation cavity that are interconnected are arranged inside the sealing connecting strip, and an expanded graphite strip is arranged inside the second installation cavity; it has good sealing performance, and in the event of a fire, the expanded graphite strip expands rapidly due to heat and expands to the second installation cavity, so that the sealing connecting strip fits tightly with the fire door and the first door frame side strip and the second door frame side strip to prevent the entry of smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the noise-reducing steel fireproof door frame of the utility model.

[0014] Figure 2 The utility model is a three-dimensional structural schematic diagram of a noise-reducing steel fireproof door frame installation mechanism.

[0015] Figure 3 The utility model is a structural schematic diagram of a noise-reducing steel fireproof door frame glass fiber sound insulation shell.

[0016] Figure 4 The utility model is a structural schematic diagram of a noise-reducing steel fireproof door frame sealing connecting strip.

[0017] In the figure, 1. door frame top strip; 2. first door frame side strip; 3. second door frame side strip; 4. wall connection slot; 5. door axis installation floor; 6. glass fiber sound insulation shell; 7. sealing connection strip; 8. plug-in connector; 9. limit slot; 10. metal plug column; 11. column sleeve; 12. compression spring segment; 13. limit tongue plate; 14. adhesive disk; 15. rubber gasket; 16. rock wool strip; 17. ceramic sound insulation strip; 18. sound insulation component slot; 19. first installation cavity; 20. expanded graphite strip; 21. second installation cavity; 22. elastic connector. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model noise reduction steel fireproof door frame;

[0020] Embodiment: The technical solution comprises a door frame top strip 1, a first door frame side strip 2 and a second door frame side strip 3, one end of the first door frame side strip 2 and one end of the second door frame side strip 3 are combined with two ends of the door frame top strip 1 through a mounting mechanism;

[0021] Among them, Figure 2 As shown, the installation mechanism includes two plug-in connectors 8, two metal plug-in columns 10, two column sleeves 11 and two adhesive discs 14. The two ends of the door frame top strip 1 are provided with limit slots 9 corresponding to the plug-in connectors 8. The two column sleeves 11 are welded inside the two limit slots 9. The two adhesive discs 14 are arranged inside the two column sleeves 11. One end of the two metal plug-in columns 10 is installed inside the two plug-in connectors 8 by threads. The other ends of the two metal plug-in columns 10 are inserted into the corresponding column sleeves 11 and connected with the adhesive discs 14. The inner side walls of the two column sleeves 11 are provided with compression spring segments 12. One end of the two compression spring segments 12 is provided with a limit tongue plate 13. The limit tongue plate 13 is extruded and connected with the metal plug-in columns 10.

[0022] In this embodiment, in order to improve the noise reduction effect and reduce the impact of noise, a wall connecting slot 4 is provided on one side of the first door frame side strip 2 and one side of the second door frame side strip 3, and a sound insulation component groove 18 connected to the wall connecting slot 4 is opened at the top of the first door frame side strip 2 and the top of the second door frame side strip 3, and a glass fiber sound insulation shell 6 is provided on the inner side of the sound insulation component groove 18, and rock wool strips 16 are provided on the inner sides of the two glass fiber sound insulation shells 6, and ceramic sound insulation strips 17 are provided at the bottom of the two rock wool strips 16.

[0023] In the present technical scheme, in order to improve the good sealing after being connected with the fire door, and to make the expanded graphite strip 20 expand rapidly due to heat when a fire occurs, and expand to the second installation cavity 21, so that the sealing connection strip 7 is tightly fitted with the fire door and the first door frame side strip 2 and the second door frame side strip 3 to prevent the entry of smoke, the other side of the first door frame side strip 2 and the other side of the second door frame side strip 3 are both provided with a sealing connection strip 7, and the interiors of the two sealing connection strips 7 are provided with a first installation cavity 19 and a second installation cavity 21 that are interconnected, and the interiors of the two second installation cavities 21 are both provided with an expanded graphite strip 20; the interiors of the two first installation cavities 19 are both provided with an elastic connection piece 22, and the two elastic connection pieces 22 are respectively in contact and connected with the first door frame side strip 2 and the second door frame side strip 3, and the two elastic connection pieces 22 are both PU foams; the elastic connection piece 22 is provided to ensure the stability of the connection of the sealing connection strip 7.

[0024] In this embodiment, in order to increase the firmness and friction of the connection between the plug-in connector 8 and the limiting slot 9, so that the plug-in connector 8 has a higher connection strength after docking; rubber gaskets 15 are provided on the side walls of the two limiting slots 9, and the rubber gaskets 15 are in contact and connected with the plug-in connector 8.

[0025] In this embodiment, in order to facilitate the installation of the door axis and the connection with the fire door, the other end of the first door frame side strip 2 and the other end of the second door frame side strip 3 are both provided with a door axis mounting floor 5.

[0026] Working principle: The door frame top strip 1, the first door frame side strip 2 and the second door frame side strip 3 together form a door frame base. One end of the first door frame side strip 2 and one end of the second door frame side strip 3 are combined with the two ends of the door frame top strip 1 through a mounting mechanism, wherein; the mounting mechanism includes two plug-in connectors 8, two metal plug-in columns 10, two column sleeves 11 and two adhesive plates 14. The two ends of the door frame top strip 1 are provided with limit slots 9 corresponding to the plug-in connectors 8. The plug-in connectors 8 are integrated with the first door frame side strip 2 and the second door frame side strip 3. The two column sleeves 11 are welded to the two limit slots 9, two adhesive discs 14 are arranged inside the two column sleeves 11, one end of the two metal plug posts 10 is installed inside the two plug-in connectors 8 through threads, and the other end is inserted into the corresponding column sleeves 11 and connected with the adhesive disc 14. The presence of the limiting tongue plate 13 makes the metal plug posts 10 more firmly plugged in, and the presence of the rubber gasket 15 increases the firmness and friction strength of the connection between the plug-in connector 8 and the limiting slot 9. The design of the above structure ensures that the first door frame side strip 2 and the second door frame side strip 3 have a good assembly effect with the door frame top strip 1, which is convenient for better assembly.

[0027] This technical solution has good sound insulation effect and reduces the impact of noise by arranging glass fiber sound insulation shell 6, rock wool strips 16 and ceramic sound insulation strips 17;

[0028] The present technical solution further provides a sealing connection strip 7, and a first installation cavity 19 and a second installation cavity 21 are provided inside the sealing connection strip 7, and an expanded graphite strip 20 is provided inside the second installation cavity 21; the sealing strip has good sealing performance, and when a fire occurs, the expanded graphite strip 20 expands rapidly due to heat and expands to the second installation cavity 21, so that the sealing connection strip 7 is closely fitted to the fire door and the first door frame side strip 2 and the second door frame side strip 3 to prevent the entry of smoke.

[0029] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A noise-reducing steel fireproof door frame, comprising a door frame top strip (1), a first door frame side strip (2) and a second door frame side strip (3), characterized in that: One end of the first door frame side strip (2) and one end of the second door frame side strip (3) are combined with two ends of the door frame top strip (1) through a mounting mechanism; The installation mechanism comprises two plug-in joints (8), two metal plug-in columns (10), two column sleeves (11) and two adhesive plates (14); both ends of the door frame top strip (1) are provided with limit slots (9) corresponding to the plug-in joints (8); the two column sleeves (11) are welded inside the two limit slots (9); the two adhesive plates (14) are arranged inside the two column sleeves (11); one end of the two metal plug-in columns (10) is installed inside the two plug-in joints (8) by threading; the other ends of the two metal plug-in columns (10) are inserted into the corresponding column sleeves (11) and connected to the adhesive plates (14); the inner side walls of the two column sleeves (11) are provided with clamping spring sections (12); one end of the two clamping spring sections (12) is provided with limit tongue plates (13); the limit tongue plates (13) are extruded and connected to the metal plug-in columns (10); A wall connection slot (4) is provided on one side of the first door frame side strip (2) and a wall connection slot (4) is provided on one side of the second door frame side strip (3); a sound insulation component slot (18) connected to the wall connection slot (4) is provided at the top end of the first door frame side strip (2) and the top end of the second door frame side strip (3); a glass fiber sound insulation shell (6) is provided on the inner side of the sound insulation component slot (18); rock wool strips (16) are provided on the inner side of the two glass fiber sound insulation shells (6); and ceramic sound insulation strips (17) are provided on the bottom of the two rock wool strips (16).

2. The noise-reducing steel fireproof door frame according to claim 1, characterized in that: The other side of the first door frame side strip (2) and the other side of the second door frame side strip (3) are both provided with a sealing connection strip (7), the interiors of the two sealing connection strips (7) are provided with a first installation cavity (19) and a second installation cavity (21) which are interconnected, and the interiors of the two second installation cavities (21) are both provided with an expanded graphite strip (20).

3. The noise-reducing steel fireproof door frame according to claim 2, characterized in that: The two first installation cavities (19) are each provided with an elastic connection member (22), and the two elastic connection members (22) are respectively in contact with and connected to the first door frame side strip (2) and the second door frame side strip (3).

4. The noise-reducing steel fireproof door frame according to claim 3, characterized in that: The two elastic connecting parts (22) are both PU foams.

5. The noise-reducing steel fireproof door frame according to claim 1, characterized in that: Rubber gaskets (15) are provided on the side walls of the two limiting slots (9), and the rubber gaskets (15) are in contact with and connected to the plug connector (8).

6. The noise-reducing steel fireproof door frame according to claim 1, characterized in that: The other end of the first door frame side strip (2) and the other end of the second door frame side strip (3) are both provided with a door axis mounting floor (5).

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