Paint-free glass fireproof door
By using a fire door structure composed of PVC frame, LVL board, PU board and SMC panel, the red phosphorus flame retardant and graphite powder are embedded in it, the problem of fireproof paint falling off is solved, and more efficient fire resistance and hardness are achieved.
Patent Information
- Application Number
- CN202421658594.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-07-15
AI Technical Summary
During long-term use of existing fire doors, the fireproof paint is prone to fall off, affecting the fireproof effect.
The door frame and door panel structure consisting of PVC frame, LVL board, PU board and SMC panel is equipped with red phosphorus flame retardant, graphite and glass fiber powder to avoid the use of fireproof paint and enhance fire resistance.
It improves the hardness and fire resistance of the fire door, effectively prevents heat transfer, reduces the risk of fireproof paint falling off, and ensures that the flame retardant fire spreads effectively in the fire.
Smart Images

Figure CN223281962U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire doors, in particular to a paint-free glass fire door. Background Art
[0002] Fire doors are one of the essential safety facilities in modern buildings. At present, for the sake of the beauty of fire doors, they are sometimes set as fire doors with glass.
[0003] The surface panels of current fire doors are made of wood, and decorative panels are pasted on the outer surfaces of the door frames and door leaves, and then fire-retardant paint is sprayed on the decorative panels. However, during long-term use, the fire-retardant paint has the risk of falling off, resulting in the fire door being unable to truly play a fire-proof role when a subsequent fire occurs. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a paint-free glass fireproof door.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A paint-free glass fire door, comprising:
[0007] Door frame, the door frame is composed of a PVC frame and two SMC panels, the PVC frame is located between the two SMC panels;
[0008] The door panel is composed of a PVC frame, an LVL board, a PU board and two SMC panels. The outer side walls of the two SMC panels close to each other are fixedly connected to the PVC frame, the long side walls of the PVC frame are fixedly connected to the LVL board, and the PU board is fixedly connected between the side walls of the PVC frame, the side walls of the two SMC panels close to each other, and the LVL boards.
[0009] Preferably, two special-shaped grooves are provided on the side wall of the SMC panel located on the door panel.
[0010] Preferably, two pieces of tempered glass are embedded on the door panel, and a handle is installed on the door panel.
[0011] Preferably, red phosphorus flame retardant, graphite and glass fiber powder are provided in the PU board and SMC panel to achieve fireproof effect.
[0012] Preferably, two slots are provided on the lower surface of the SMC panel on the door frame for installing the SMC panel.
[0013] Preferably, it further includes a mounting mechanism, which includes a mounting block fixedly connected to the wall, the door frame side wall is fitted with the mounting block side wall, and a rubber strip is provided between the door frame side wall and the mounting block side wall.
[0014] The utility model has the following beneficial effects:
[0015] 1. PVC frames and LVL boards can increase the hardness of fire doors. PU boards and SMC panels can effectively prevent heat transfer, have fire-proof properties, and can retard the spread of fire to a certain extent.
[0016] 2. Red phosphorus flame retardant, graphite and glass fiber powder are provided in PU board and SMC panel, which further enhances its fire resistance. There is no need to consider the risk of falling off. This avoids the existing technology of spraying fire retardant paint on the decorative panel for fire prevention, which leads to the risk of falling off of the fire retardant paint during long-term use. When a fire occurs later, the fire door will hardly play a real fire prevention role. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a structural diagram of a paint-free glass fire door proposed in the utility model;
[0018] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;
[0019] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along the BB direction;
[0020] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure in the CC direction;
[0021] Figure 5 for Figure 1 Schematic diagram of the horizontal cross-sectional structure of the middle installation mechanism.
[0022] In the figure: 1. PVC frame; 2. LVL board; 3. PU board; 4. SMC panel; 5. Special-shaped slot; 6. Card slot; 7. Mounting block; 8. Rubber strip; 9. Tempered glass; 10. Handle. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0024] Reference Figure 1-5 A paint-free glass fire door includes a door frame, which is composed of a PVC frame 1 and two SMC panels 4. The PVC frame 1 is located between the two SMC panels 4.
[0025] The door panel consists of a PVC frame 1, an LVL board 2, a PU board 3 and two SMC panels 4. The outer side walls of the two SMC panels 4 close to each other are fixedly connected to the PVC frame 1, the long side wall of the PVC frame 1 is fixedly connected to the LVL board 2, and the PU board 3 is fixedly connected between the side wall of the PVC frame 1, the side walls of the two SMC panels 4 close to each other, and the LVL board 2.
[0026] Red phosphorus, graphite and glass fiber powder are provided inside the PU board 3 and the SMC panel 4 to achieve a fireproof effect.
[0027] Further, such as Figure 2 As shown, the decorative panel on the fire door is an SMC panel 4, which has high mechanical strength and flame retardancy, etc., and the filling material in the door panel is a PU board 3, which has excellent thermal insulation performance, low thermal conductivity, can effectively prevent heat transfer, has fireproof characteristics, and can retard the spread of fire to a certain extent. In addition, red phosphorus flame retardant, graphite and glass fiber powder are provided in the PU board 3 and the SMC panel 4, which further increases the fire resistance without affecting the appearance of the fire door, and there is no need to consider the risk of falling off, avoiding the existing technology of spraying fire retardant paint on the decorative panel for fire prevention, resulting in the risk of fire retardant paint falling off during long-term use. When a fire occurs later, the fire door is difficult to play a real fire prevention role.
[0028] Two special-shaped grooves 5 are formed on the side wall of the SMC panel 4 on the door panel. Two pieces of tempered glass 9 are embedded on the door panel. A handle 10 is installed on the door panel.
[0029] The lower surface of the SMC panel 4 on the door frame is provided with two slots 6 for its installation.
[0030] It also includes a mounting mechanism, which includes a mounting block 7 fixedly connected to the wall, the side wall of the door frame is in contact with the side wall of the mounting block 7, and a rubber strip 8 is provided between the side wall of the door frame and the side wall of the mounting block 7.
[0031] Further, such as Figure 5 As shown, the rubber strip 8 can increase the sealing between the side wall of the door frame and the side wall of the mounting block 7.
[0032] In the present invention, the door frame is composed of a PVC frame 1 and two SMC panels 4, and the door panel is composed of a PVC frame 1, an LVL board 2, a PU board 3 and two SMC panels 4. The PVC frame 1 and the LVL board 2 can increase the hardness of the fire door, and the PU board 3 and the SMC panel 4 can effectively prevent heat transfer, have fireproof properties, and can retard the spread of fire to a certain extent. At the same time, red phosphorus flame retardant, graphite and glass fiber powder are provided in the PU board 3 and the SMC panel 4, which further increases its fire resistance and there is no need to consider the risk of falling off.
[0033] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and utility model concept of the present invention, should be covered by the protection scope of the present invention.
Claims
1. A paint-free glass fire door, characterized in that: include: A door frame, the door frame consisting of a PVC frame (1) and two SMC panels (4), the PVC frame (1) being located between the two SMC panels (4); A door panel, comprising a PVC frame (1), an LVL board (2), a PU board (3) and two SMC panels (4); outer side walls of the two SMC panels (4) close to each other are fixedly connected to the PVC frame (1); the long side walls of the PVC frame (1) are fixedly connected to the LVL board (2); and the PU board (3) is fixedly connected between the side walls of the PVC frame (1), the side walls of the two SMC panels (4) close to each other and the LVL boards (2).
2. A paint-free glass fire door according to claim 1, characterized in that: Two special-shaped grooves (5) are provided on the side wall of the SMC panel (4) located on the door panel.
3. The paint-free glass fire door according to claim 1, characterized in that: Two pieces of tempered glass (9) are embedded on the door panel, and a handle (10) is installed on the door panel.
4. The paint-free glass fire door according to claim 1, characterized in that: The lower surface of the SMC panel (4) located on the door frame is provided with two card slots (6) for installing the SMC panel.
5. The paint-free glass fire door according to claim 1, characterized in that: It also includes a mounting mechanism, which includes a mounting block (7) fixedly connected to the wall, the door frame side wall and the mounting block (7) side wall are in contact with each other, and a rubber strip (8) is provided between the door frame side wall and the mounting block (7) side wall.