Door frame of sealing fireproof door

Abstract

The utility model provides a door frame, belongs to the technical field of fireproof door equipment, and particularly relates to a sealing fireproof door frame which comprises a door body and a door frame sleeved outside the door body, flame-retardant blocks arranged in the door frame are arranged at the upper end and the lower end of the door body, polyurethane foam is arranged on one side, close to the door frame, of each flame-retardant block, and V-shaped sealing strips are arranged on the left side and the right side of the door body. According to the fireproof door, the flame-retardant block arranged in the door frame abuts against the door body under the heating expansion effect of the polyurethane foam, so that the sealing and fixing effects are achieved, meanwhile, the V-shaped sealing strip arranged in the door frame has the sealing effect in the longitudinal direction, and the problem that a sealing strip of an existing fireproof door is prone to falling off after being used for a long time is solved.

Description

Technical Field

[0001] The utility model provides a door frame, belonging to the technical field of fireproof door equipment, and particularly relates to a sealed fireproof door frame. Background Art

[0002] Fire doors play a vital role in buildings. They are designed to resist fire and prevent smoke spread within a certain period of time, ensuring that people inside the building have enough time to escape safely when a fire occurs. Fire doors not only isolate fires, but also help firefighters control the spread of fire more effectively, thereby minimizing casualties and property losses. Installed between fire compartments, evacuation stairwells or other locations with important fire resistance requirements, fire doors play a key role in the event of a fire. Their stability, integrity and thermal insulation performance have been rigorously tested and verified to ensure that they can reliably isolate and protect in the event of a fire. People can rely on these fire doors to find escape routes and ensure their own safety. Therefore, fire doors are irreplaceable in the building fire protection system and are an important part of ensuring the safety of life and property.

[0003] After long-term use, the sealing strips of existing fire doors are prone to falling off. When facing a fire, thick smoke will rush into the safety passage or the home, which can easily cause personal safety hazards to the residents and pose certain safety hazards. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the embodiments of the present application provide a sealed fire door frame, thereby solving the problem that the sealing strips of the existing fire doors are prone to falling off after long-term use.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a sealed fireproof door frame, comprising a door body and a door frame mounted on the outside of the door body, wherein the upper and lower ends of the door body are provided with flame retardant blocks placed in the door frame, polyurethane foam is provided on the side of the flame retardant block close to the door frame, and V-shaped sealing strips are provided on the left and right sides of the door body.

[0006] Preferably: the door frame includes transverse support plates placed at the upper and lower ends of the door body, and longitudinal support plates located at the left and right sides of the door body and perpendicular to the transverse support plates, and a longitudinal groove corresponding to the sealing strip is provided on the side of the longitudinal support plate close to the door body.

[0007] Preferably: a transverse groove corresponding to the polyurethane foam is provided on one side of the transverse support plate close to the flame retardant block, and fireproof sealing strips are provided inside the transverse groove and are placed on both sides of the polyurethane foam and corresponding to the flame retardant block.

[0008] Preferably: a card slot corresponding to the flame retardant block is provided on one end of the door body close to the transverse support plate, a plurality of buffer slots evenly distributed and laterally penetrating the door body are provided inside one end of the door body close to the card slot, and a protrusion is provided above the buffer slot, which is located on the side of the door body close to the longitudinal support plate and corresponds to the longitudinal groove.

[0009] Preferably: a fireproof coating and an asbestos filling layer located inside the fireproof coating are provided on the outer surface of the door body, an inner blocking plate is connected to the side of the door frame close to the asbestos filling layer, and a sound insulation cushion is provided between the inner blocking plate and the door body.

[0010] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0011] The utility model has a flame retardant block arranged inside the door frame, which supports the door body under the action of thermal expansion of the polyurethane foam, thereby playing a sealing and fixing role. At the same time, the V-shaped sealing strip arranged inside the door frame plays a sealing role in the longitudinal direction.

[0012] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of a sealed fireproof door frame of the utility model;

[0014] Figure 2 This is a cross-sectional view of a transverse support plate portion of a sealed fireproof door frame of the utility model;

[0015] Figure 3 It is a three-dimensional schematic diagram of a sealing strip of a sealed fire door frame of the utility model;

[0016] Figure 4 The utility model is a cross-sectional view of a door body of a sealed fireproof door frame.

[0017] As shown in the figure:

[0018] 1. Door body; 2. Door frame; 3. Flame retardant block; 4. Polyurethane foam; 5. Sealing strip; 6. Horizontal support plate; 7. Longitudinal support plate; 8. Longitudinal groove; 9. Horizontal groove; 10. Fireproof sealing strip; 11. Card slot; 12. Buffer slot; 13. Fireproof coating; 14. Asbestos filling layer; 15. Inner blocking plate; 16. Sound insulation cushion;

[0019] 111. Bump. 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] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific implementation methods and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] like Figure 1 and Figure 2 As shown, a sealed fireproof door frame includes a door body 1, a door frame 2 mounted on the outside of the door body 1, and the door frame 2 includes transverse support plates 6 arranged at the upper and lower ends of the door body 1, and longitudinal support plates 7 arranged on the left and right sides of the door body 1 and perpendicular to the transverse support plates 6, and a longitudinal groove 8 corresponding to the sealing strip 5 is provided on the side of the longitudinal support plate 7 close to the door body 1, and flame retardant blocks 3 arranged in the door frame 2 are provided at the upper and lower ends of the door body 1, and polyurethane foam 4 is provided on the side of the flame retardant block 3 close to the door frame 2, and V-shaped sealing strips 5 are provided on the left and right sides of the door body 1.

[0024] In the present embodiment, by setting the flame retardant block 3 inside the door frame 2, the door body 1 is supported under the action of the heat expansion of the polyurethane foam 4, so as to play a role of sealing and fixing. At the same time, the V-shaped sealing strip 5 placed inside the door frame 2 plays a sealing role in the longitudinal direction. The inclination direction of the inclined surface of the sealing strip 5 conforms to the closing direction of the door body 1. After the door body 1 is closed, the sealing strip supports the door body 1 and the longitudinal groove 8 to avoid falling off due to long-term use; in normal use, the door body 1 is closed, the flame retardant block 3 and the polyurethane foam 4 are squeezed, and after being heated, the polyurethane foam 4 expands. Under the connection of the fireproof sealing strip 10, the polyurethane foam 4 fills the entire transverse groove 9 and the card slot 11.

[0025] like Figure 2 , 3As shown in Figure 4, a transverse groove 9 corresponding to the polyurethane foam 4 is provided on the side of the transverse support plate 6 close to the flame retardant block 3, and a fireproof sealing strip 10 is provided on the inner side of the transverse groove 9 and is placed on both sides of the polyurethane foam 4 and corresponds to the flame retardant block 3. A card groove 11 corresponding to the flame retardant block 3 is provided on the end of the door body 1 close to the transverse support plate 6, and a plurality of buffer grooves 12 are arranged inside the end of the door body 1 close to the card groove 11, which are evenly distributed and transversely penetrate the door body 1. A protrusion 111 is arranged on the side of the door body 1 close to the longitudinal support plate 7 and corresponds to the longitudinal groove 8 above the buffer groove 12. A fireproof coating 13 and an asbestos filling layer 14 located on the inner side of the fireproof coating 13 are provided on the outer surface of the door body 1. An inner blocking plate 15 is connected to the side of the door frame 2 close to the asbestos filling layer 14, and a sound insulation buffer pad 16 is provided between the inner blocking plate 15 and the door body 1.

[0026] In this embodiment, the buffer 12 on the door body 1 prevents the door body from overheating and deformation and the door frame from getting stuck, resulting in failure to start writing normally; the inner blocking plate 15 is tightly closed to the door body 1, and the sound insulation buffer pad 16 protects the door body 1 while reducing noise.

[0027] When in use, select the location where the fire door needs to be installed and fix the door frame 2. Ensure that all parts of the door frame are firmly connected, install the horizontal support plate 6 and the longitudinal support plate 7 on the door frame at the designed vertical angle, ensure that the door frame structure is stable, and install the door body 1 in the door frame 2 so that the door body can open and close normally; the upper and lower ends of the door body should be provided with flame retardant blocks 3, and confirm that the polyurethane foam 4 on the inner side of the flame retardant block 3 corresponds to the horizontal groove 9 on the horizontal support plate 6, and ensure that the longitudinal groove 8 on the longitudinal support plate 7 corresponds to the V-shaped sealing strip 5 on the door body 1; when closing the door body 1, align the V-shaped sealing strip 5 on the left and right sides of the door body with the longitudinal groove 8, so that the inclined surface of the sealing strip conforms to the closing direction of the door body, effectively increasing the sealing performance, after the door body is closed, ensure that the sealing strip 5 supports the door body 1 and the longitudinal groove 8 to prevent the sealing strip from falling off after long-term use, and when the door body is closed, squeeze the flame retardant block 3 and the polyurethane foam 4 to ensure that the polyurethane foam 4 can expand when heated, fill the horizontal groove 9 and the card slot 11, and pass through the fireproof seal. The connection of the sealing strip 10 can fully enhance the sealing effect; the buffer groove 12 on the door body 1 can prevent the door body from excessive deformation when heated, avoid jamming with the door frame, and ensure that the door body can be opened normally. The inner blocking plate 15 is installed to make it close to the door body 1 and closed. Through the action of the sound insulation cushion 16, the door body is protected and noise is effectively reduced; the outer surface of the door body 1 should be provided with a fireproof coating 13 and an inner asbestos filling layer 14 to ensure that the door body can provide effective fire protection in the event of a fire. During the installation process, confirm the sealing of the door body and door frame components to ensure that the fire door can play the best fire and smoke isolation effect in the event of a fire; during the installation and use process, ensure that all sealing strips, fireproof coatings, polyurethane foam and other materials meet the fire protection standards, regularly check the various components of the fire door, especially the status of the sealing strips, fireproof coatings and polyurethane foams, and replace aging or damaged parts in time to ensure that the fire door can play its due role in an emergency.

[0028] Although the present invention has been disclosed as above in terms of preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the claims.

Claims

1. A sealed fireproof door frame, comprising a door body (1) and a door frame (2) sleeved outside the door body (1), characterized in that: The upper and lower ends of the door body (1) are provided with flame retardant blocks (3) placed in the door frame (2), the side of the flame retardant block (3) close to the door frame (2) is provided with polyurethane foam (4), and the left and right sides of the door body (1) are provided with V-shaped sealing strips (5).

2. A sealed fireproof door frame according to claim 1, characterized in that: The door frame (2) comprises transverse support plates (6) disposed at the upper and lower ends of the door body (1), and longitudinal support plates (7) disposed at the left and right sides of the door body (1) and perpendicular to the transverse support plates (6); a longitudinal groove (8) corresponding to the sealing strip (5) is provided on one side of the longitudinal support plate (7) close to the door body (1).

3. A sealed fireproof door frame according to claim 2, characterized in that: A transverse groove (9) corresponding to the polyurethane foam (4) is provided on one side of the transverse support plate (6) close to the flame retardant block (3), and fireproof sealing strips (10) are provided inside the transverse groove (9) and are placed on both sides of the polyurethane foam (4) and corresponding to the flame retardant block (3).

4. A sealed fireproof door frame according to claim 2, characterized in that: The door body (1) is provided with a slot (11) corresponding to the flame retardant block (3) on one end close to the transverse support plate (6), and a plurality of buffer grooves (12) are provided inside the door body (1) on one end close to the slot (11) and are evenly distributed and extend through the door body (1) transversely, and a protrusion (111) is provided above the buffer groove (12) and is located on one side of the door body (1) close to the longitudinal support plate (7) and corresponds to the longitudinal groove (8).

5. The sealed fireproof door frame according to claim 1, characterized in that: The outer surface of the door body (1) is provided with a fireproof coating (13) and an asbestos filling layer (14) located inside the fireproof coating (13); an inner blocking plate (15) is connected to the side of the door frame (2) close to the asbestos filling layer (14); and a sound insulation cushion (16) is provided between the inner blocking plate (15) and the door body (1).

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