Fireproof and smoke-proof door frame structure

Abstract

The utility model discloses a fireproof and smoke-proof door frame structure, which relates to the technical field of fireproof doors and comprises a door frame main body. According to the fireproof and smoke-proof door frame structure, the first bent section and the second bent section are designed, the first protective part and the second protective part are installed at the bent parts respectively, then the dual fireproof and smoke-proof purpose is achieved, the filling part is additionally arranged in the second protective part, the filling part is made of expandable graphite, and therefore the fireproof and smoke-proof effects are achieved. Wherein the expandable graphite is subjected to intercalation treatment, the volume of the expandable graphite is rapidly expanded in case of fire, so that the second protection part can play a role in fire prevention and sealing, a plurality of limiting strips are designed on the outer wall of the second protection part, and the limiting strips and a back bending section can limit the second protection part, so that the problem of falling off is prevented, and the service life of the second protection part is prolonged. And finally, a dismounting end is designed on the outer wall of the second protection part, one side of the dismounting end also makes contact with the outer wall of the door leaf, and the dismounting end is mainly used for dismounting the second protection part more conveniently.

Description

Technical Field

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

[0002] A fire door is a door that meets the requirements of fire resistance, stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with a certain fire resistance installed between fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the functions of ordinary doors, fire doors and fire door frames can also prevent the spread of fire and smoke, and can prevent the spread of fire within a certain period of time.

[0003] The existing fireproof doors all rely on fireproof rubber strips to achieve the purpose of fire and smoke prevention at the door gaps. However, the fire and smoke prevention effect of relying on only one rubber strip is not obvious, and the rubber strip is generally connected to the door frame by snapping. Since the part where the rubber strip enters the door frame is relatively smooth, it is easy to fall off. Utility Model Content

[0004] The purpose of the utility model is to provide a fireproof and smokeproof door frame structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fireproof and smokeproof door frame structure includes a door frame body, a first bending section is provided on the side of the door frame body close to the door leaf, and a second bending section is provided on one side of the first bending section, a first protective member is bonded to the outer wall of the first bending section, a second protective member is installed on the outer wall of the second bending section, a removal end is integrally provided on the outer wall of the second protective member, a filling member is filled inside the second protective member, a plurality of limit strips are provided on the outer wall of the second protective member, and the right side of the second bending section is a return bending section.

[0007] Furthermore, the door frame body, the first bending section and the second bending section are of an integrated bending-molded structure design.

[0008] Furthermore, the first protective member is a fireproof rubber strip.

[0009] Furthermore, the second protective member and the removal end are both made of rubber.

[0010] Furthermore, the filler is expandable graphite.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The door frame body provided by the utility model is designed with two bending parts, namely the first bending section and the second bending section, and the bending parts are respectively installed with the first protective member and the second protective member, thereby achieving the purpose of double fire and smoke prevention.

[0013] 2. The utility model adds a filling piece inside the second protective piece. The filling piece is expandable graphite. The expandable graphite has been intercalated and its volume expands rapidly when it encounters fire, so that the second protective piece can play the role of fireproof sealing.

[0014] 3. The utility model designs a plurality of limit strips on the outer wall of the second protective member. The limit strips and the return bend section can realize the limit work of the second protective member, thereby preventing the problem of falling off.

[0015] 4. The utility model designs a removal end on the outer wall of the second protective member, and one side of the removal end also contacts the outer wall of the door leaf, and the removal end is mainly for more convenience when removing the second protective member. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of a fireproof and smokeproof door frame structure in the present invention;

[0017] Figure 2 This is a schematic diagram of a top-sectional structure of a fire-proof and smoke-proof door frame structure;

[0018] Figure 3 The utility model provides a partial structural schematic diagram of a fireproof and smokeproof door frame structure.

[0019] In the figure:

[0020] 1. Door frame body; 2. First bending section; 3. Second bending section; 4. First protective piece; 5. Second protective piece; 6. Removal end; 7. Filling piece; 8. Limiting strip; 9. Return bending section. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1-3As shown, the utility model provides a fireproof and smokeproof door frame structure, including a door frame main body 1, characterized in that a first bending section 2 is arranged on a side of the door frame main body 1 close to the door leaf, and a second bending section 3 is arranged on one side of the first bending section 2, a first protective member 4 is bonded to the outer wall of the first bending section 2, a second protective member 5 is installed on the outer wall of the second bending section 3, and a removal end 6 is integrally arranged on the outer wall of the second protective member 5, and a removal end 6 is designed on the outer wall of the second protective member 5, and one side of the removal end 6 also contacts the outer wall of the door leaf, and the removal end 6 is mainly for more convenient removal of the second protective member 5, the second protective member 5 is filled with a filling member 7, and a plurality of limiting strips 8 are arranged on the outer wall of the second protective member 5, the right side of the second bending section 3 is a return bending section 9, and a plurality of limiting strips 8 are designed on the outer wall of the second protective member 5, and the limiting strips 8 and the return bending section 9 can realize the limiting work of the second protective member 5, thereby preventing the problem of falling off. The provided door frame body 1 is designed with two bending parts, namely a first bending section 2 and a second bending section 3, and the bending parts are respectively installed with a first protective member 4 and a second protective member 5, thereby achieving the purpose of double fire and smoke protection.

[0023] As an implementation mode, the door frame body 1, the first bending section 2 and the second bending section 3 are designed as an integrated bending-molded structure.

[0024] As an implementation mode, the first protective member 4 is a fireproof rubber strip, and the fireproof rubber strip itself has a fireproof function.

[0025] As an implementation mode, the second protection member 5 and the removal end 6 are both made of rubber material, and the rubber material can prevent smoke substances from entering.

[0026] As an embodiment, the filler 7 is expandable graphite. The filler 7 is added inside the second protective member 5. The filler 7 is expandable graphite. The expandable graphite has been intercalated and its volume expands rapidly when exposed to fire, thereby enabling the second protective member 5 to function as a fireproof seal.

[0027] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A fireproof and smokeproof door frame structure, comprising a door frame body (1), characterized in that: A first bending section (2) is provided on the side of the door frame body (1) close to the door leaf, and a second bending section (3) is provided on one side of the first bending section (2); a first protective member (4) is bonded to the outer wall of the first bending section (2); a second protective member (5) is installed on the outer wall of the second bending section (3); a removal end (6) is integrally provided on the outer wall of the second protective member (5); a filling member (7) is filled inside the second protective member (5); a plurality of limit strips (8) are provided on the outer wall of the second protective member (5); and a return bending section (9) is provided on the right side of the second bending section (3).

2. A fireproof and smokeproof door frame structure according to claim 1, characterized in that: The door frame body (1), the first bending section (2) and the second bending section (3) are of an integrated bending-molded structural design.

3. The fireproof and smokeproof door frame structure according to claim 1, characterized in that: The first protective member (4) is a fireproof rubber strip.

4. The fireproof and smokeproof door frame structure according to claim 1, characterized in that: The second protective member (5) and the removal end (6) are both made of rubber.

5. The fireproof and smokeproof door frame structure according to claim 1, characterized in that: The filler (7) is expandable graphite.

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