Core plate structure of heat-insulation fireproof door

Abstract

The utility model belongs to the technical field of fireproof doors, and discloses a heat insulation fireproof door core plate structure which comprises a door frame, a door plate is hinged to the interior of the door frame, fire-resistant fiber plates are symmetrically and fixedly installed on the inner wall of the door plate, and a steel frame structure layer is arranged between the two fire-resistant fiber plates. First clamping blocks are slidably installed in the fire-resistant fiber board and the steel frame structure layer, second clamping blocks are slidably installed in the door board and the steel frame structure layer, the outer sides of the two first clamping blocks and the outer sides of the second clamping blocks are fixedly sleeved with the same upper semicircular block, and the outer sides of the two first clamping blocks are fixedly sleeved with the same lower semicircular block. Nuts are symmetrically mounted in the upper semicircular block; the upper semicircular block and the lower semicircular block are connected to the outer surface of the first clamping block and the outer surface of the second clamping block in a sleeving mode, then the door plate, the fireproof fiber plate and the steel frame structure are integrated and fixed through the cooperation of the bolts and the nuts, and the structural performance of the whole door plate is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of fire door technology, and in particular relates to a heat-insulating fire door core panel structure. Background Technology

[0002] Fire doors are doors that meet the requirements of fire resistance stability, integrity, and thermal insulation for a certain period of time, and are mainly used for fire-resistant partitioning. In buildings, fire doors serve to isolate fire sources, prevent the spread of fire and smoke, and ensure the safe escape of personnel in the event of a fire. Fire doors are classified into Class A, Class B, and Class C according to their fire resistance time; Class A fire doors have a fire resistance time of 1.50 hours, Class B 1.0 hour, and Class C 0.50 hours. These classifications determine the use of fire doors in different situations, ensuring sufficient protection time under various fire conditions.

[0003] Most fire doors on the market are made of wood panels. In the event of a fire, the door panels are exposed to high temperatures, which can cause them to deform, reducing their structural integrity and affecting their fire resistance and sealing performance. Utility Model Content

[0004] This utility model addresses the problem in the prior art that door panels are prone to deformation when exposed to high temperatures, leading to reduced structural integrity and affecting fire resistance and sealing performance. The following technical solution is proposed:

[0005] A heat-insulating and fireproof door core panel structure includes: a door frame, a door panel hinged inside the door frame, fire-resistant fiberboards symmetrically fixedly installed on the inner wall of the door panel, a steel frame structure layer between two fire-resistant fiberboards, a first locking block slidably installed inside both the fire-resistant fiberboards and the steel frame structure layer, a second locking block slidably installed inside both the door panel and the steel frame structure layer, a common upper semicircular block fixedly sleeved on the outer sides of the two first locking blocks and the same lower semicircular block fixedly sleeved on the outer sides of the two first locking blocks, nuts symmetrically installed inside the upper semicircular block, and bolts rotatably connected inside the lower semicircular block.

[0006] As a preferred embodiment of the above technical solution, the bolt passes through the upper and lower semicircular blocks and is threaded into the interior of the nut.

[0007] As a preferred embodiment of the above technical solution, the outer sides of both first blocks are attached to the inner wall of the fire-resistant fiberboard, and the outer side of the second block is attached to the inner wall of the door panel.

[0008] As a preferred embodiment of the above technical solution, a glass frame is fixedly installed between the inner walls of the steel frame structure layer, a rotating frame is hinged to one side of the glass frame, and transparent glass is fitted inside the glass frame.

[0009] As a preferred embodiment of the above technical solution, a magnet is fixedly installed inside the glass frame, and an iron block is provided inside the rotating frame at the position corresponding to the magnet.

[0010] As a preferred embodiment of the above technical solution, the opposing surfaces of the rotating frame and the transparent glass are in contact with each other.

[0011] The beneficial effects of this utility model are as follows:

[0012] (1) This utility model uses components such as the first and second locking blocks to integrate and fix the door panel, fire-resistant fiberboard and steel frame structure by fitting the upper and lower semicircular blocks onto the outer surfaces of the first and second locking blocks, and then using bolts and nuts. This effectively improves the structural performance of the entire door panel, prevents the door panel from deforming under high temperature conditions during a fire, and ensures the fire resistance and sealing effect of the door panel.

[0013] (2) This utility model fixes the glass frame inside the steel frame structure layer, and then installs the transparent glass inside the steel frame structure layer, thereby preventing the glass from falling off when the door body deforms during a fire, thus ensuring the integrity of the glass. Attached Figure Description

[0014] Figure 1 The diagram shown is an overall structural schematic of a heat-insulating and fireproof door core panel.

[0015] Figure 2 The diagram shown is an internal structure diagram of a heat-insulated and fire-resistant door core panel.

[0016] Figure 3 What is shown is Figure 2 Schematic diagram of the structure of region A in the middle;

[0017] Figure 4 The diagram shown is a partial structural schematic of a heat-insulating and fireproof door core panel.

[0018] Figure 5 The diagram shown is a schematic diagram of the steel frame structure of a heat-insulating and fireproof door core panel structure;

[0019] Figure 6 The diagram shown is a schematic of a glass frame structure for a heat-insulating and fireproof door core panel.

[0020] Figure 7 The diagram shown is an exploded view of the first and second locking blocks of a heat-insulating and fireproof door core panel structure.

[0021] In the diagram: 1. Door frame; 2. Door panel; 3. Fire-resistant fiberboard; 4. Steel frame structure layer; 5. First locking block; 6. Second locking block; 7. Upper semicircular block; 8. Lower semicircular block; 9. Nut; 10. Bolt; 11. Glass frame; 12. Magnet; 13. Rotating frame; 14. Transparent glass. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0023] Example 1

[0024] This utility model provides a heat-insulating and fireproof door core panel structure, such as Figures 1 to 7 As shown, the system includes a door frame 1, with a door panel 2 hinged inside the door frame 1. The outer surface of the door panel 2 is coated with fire-retardant paint, which can block flames and delay the spread of fire in the event of a fire. Fire-resistant fiberboard 3 is symmetrically fixedly installed on the inner wall of the door panel 2. The fire-resistant fiberboard 3 is a non-flexible, sheet-like fire-resistant fiber product made from fire-resistant fibers with a binder, produced by wet pressing. It possesses properties such as high temperature resistance, corrosion resistance, oxidation resistance, and thermal insulation. A steel frame structure layer 4 is provided between two fire-resistant fiberboards 3. First locking blocks 5 are slidably installed inside both the fire-resistant fiberboard 3 and the steel frame structure layer 4. Second locking blocks 6 are slidably installed inside both the door panel 2 and the steel frame structure layer 4. The outer sides of the two first locking blocks 5 and the second locking blocks 6 are fixedly fitted with the same upper semicircular block 7, and the outer sides of the two first locking blocks 5 are fixedly fitted with the same lower semicircular block 8. Figure 7 As shown, the tail ends of the two first locking blocks 5 and the second locking block 6 are integrally formed with protrusions. After the upper semicircular block 7 and the lower semicircular block 8 are fixedly installed, they form a complete ring. The outer sides of the protrusions of the first locking blocks 5 and the second locking blocks 6 are both attached to the inner wall of the ring. Nuts 9 are symmetrically installed inside the upper semicircular block 7, and bolts 10 are rotatably connected inside the lower semicircular block 8. The bolts 10 pass through the upper semicircular block 7 and the lower semicircular block 8 and are threaded into the inside of the nut 9. A groove is opened inside the upper semicircular block 7 at the position corresponding to the outer side of the nut 9, thereby... The nut 9 is fully engaged in the slot to prevent it from loosening. The bolt 10 is attached to the outside of the lower semicircular block 8 and threaded into the inside of the nut 9 to ensure the stability of the connection between the upper semicircular block 7 and the lower semicircular block 8. This fixes the first locking block 5 and the second locking block 6 inside the upper semicircular block 7 and the lower semicircular block 8, making them unable to slide. This secures the door panel 2, the fire-resistant fiberboard 3, and the steel frame structure layer 4 as a whole, effectively improving the stability of the entire door panel 2 structure.

[0025] like Figures 2 to 4As shown, the outer sides of the two first locking blocks 5 are attached to the inner wall of the fire-resistant fiberboard 3, and the outer side of the second locking block 6 is attached to the inner wall of the door panel 2. This allows the first locking blocks 5 and the second locking blocks 6 to slide only along the sliding grooves opened inside the door panel 2 and the fire-resistant fiberboard 3, thereby limiting the door panel 2 and the fire-resistant fiberboard 3, preventing them from shaking, and improving the stability of the overall structure.

[0026] like Figure 5 and Figure 6 As shown, a glass frame 11 is fixedly installed between the inner walls of the steel frame structure layer 4. A rotating frame 13 is hinged to one side of the glass frame 11. A transparent glass 14 is fitted inside the glass frame 11. The rotating frame 13, which is hinged to the glass frame 11, allows the rotating frame 13 to rotate flexibly, which makes it easy to open the glass frame 11 to replace the transparent glass 14 inside, thereby maintaining and replacing the damaged transparent glass 14.

[0027] like Figure 5 and Figure 6 As shown, a magnet 12 is fixedly installed inside the glass frame 11, and an iron block is set inside the rotating frame 13 at the position corresponding to the magnet 12. The opposing surfaces of the rotating frame 13 and the transparent glass 14 are in contact with each other. By rotating the rotating frame 13 to make it fit against the glass frame 11, the magnet 12 is attracted to the iron block inside the rotating frame 13, thereby fixing the transparent glass 14 inside the glass frame 11. This prevents the transparent glass 14 inside the glass frame 11 from shaking and being damaged when the door is opened and closed, and improves the service life of the transparent glass 14.

[0028] Working principle: During installation and use, the steel frame structure layer 4 is placed inside the door panel 2, ensuring that the outer side of the steel frame structure layer 4, the fire-resistant fiberboard 3, and the inner wall of the door panel 2 are all in close contact. Then, the first locking block 5 and the second locking block 6 are engaged along the sliding grooves into the interior of the door panel 2, the fire-resistant fiberboard 3, and the steel frame structure layer 4, ensuring that the two locking blocks 5 and 6 are in the same vertical direction. The upper semicircular block 7 and the lower semicircular block 8 are then fitted onto the outer sides of the first locking blocks 5 and 6. Finally, the nut 9 is placed in the opening of the upper semicircular block 7. Inside the groove, bolt 10 is then threaded through the upper semicircular block 7 and the lower semicircular block 8 and connected to the inside of nut 9, thereby tightening the first locking block 5 and the second locking block 6 with the upper semicircular block 7 and the lower semicircular block 8, making the first locking block 5 and the second locking block 6 fixed and unable to slide. This fixes the door panel 2, the fire-resistant fiberboard 3 and the steel frame structure layer 4 as a whole, effectively improving the stability of the overall structure of the door panel 2, preventing the door panel 2 from deforming under high temperature conditions during a fire, and ensuring the fire resistance and sealing effect of the door panel 2.

[0029] When the transparent glass 14 needs to be replaced, the rotating bracket 13 is rotated to open the glass frame 11. The new transparent glass 14 is then inserted into the glass frame 11 along the groove provided in the glass frame 11. The rotating bracket 13 is then rotated to fit against the glass frame 11. At this time, the magnet 12 is attracted to the iron block installed at the same horizontal height as the rotating bracket 13, thereby fixing the transparent glass 14 inside the glass frame 11. This prevents the transparent glass 14 from shaking and being damaged when the user opens and closes the door violently, thus extending the service life of the transparent glass 14.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A heat-insulating and fireproof door core panel structure, characterized in that, include: A door frame (1) is hinged to a door panel (2) inside the door frame (1). A fire-resistant fiberboard (3) is symmetrically fixedly installed on the inner wall of the door panel (2). A steel frame structure layer (4) is provided between the two fire-resistant fiberboards (3). A first locking block (5) is slidably installed inside the fire-resistant fiberboard (3) and the steel frame structure layer (4). A second locking block (6) is slidably installed inside the door panel (2) and the steel frame structure layer (4). The same upper semicircular block (7) is fixedly sleeved on the outer side of the two first locking blocks (5) and the second locking block (6). The same lower semicircular block (8) is fixedly sleeved on the outer side of the two first locking blocks (5). Nuts (9) are symmetrically installed inside the upper semicircular block (7). Bolts (10) are rotatably connected inside the lower semicircular block (8).

2. The heat-insulating and fireproof door core panel structure according to claim 1, characterized in that, The bolt (10) passes through the upper semicircle (7) and the lower semicircle (8) and is threaded into the inside of the nut (9).

3. The heat-insulating and fireproof door core panel structure according to claim 1, characterized in that, The outer sides of the two first clips (5) are attached to the inner wall of the fire-resistant fiberboard (3), and the outer side of the second clip (6) is attached to the inner wall of the door panel (2).

4. The heat-insulating and fireproof door core panel structure according to claim 1, characterized in that, A glass frame (11) is fixedly installed between the inner walls of the steel frame structure layer (4). A rotating frame (13) is hinged to one side of the glass frame (11). A transparent glass (14) is fitted inside the glass frame (11).

5. The heat-insulating and fireproof door core panel structure according to claim 4, characterized in that, A magnet (12) is fixedly installed inside the glass frame (11), and an iron block is set inside the rotating frame (13) at the position corresponding to the magnet (12).

6. The heat-insulating and fireproof door core panel structure according to claim 4, characterized in that, The opposing surfaces of the rotating frame (13) and the transparent glass (14) are in contact with each other.

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