Fireproof and theftproof entry door

CN224919142UActive Publication Date: 2026-10-30FUJIAN YONGJIA FIRE DOOR & WINDOW MFG CO LTD
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Patent Information

Application Number
CN202522536466.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-10-30
Estimated Expiration
2035-11-28

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Abstract

The application provides a fireproof and theftproof entrance door, two groups of symmetrically distributed door plate frames, a panel and a bottom plate are respectively installed on the two groups of door plate frames, a containing area is formed between the two groups of frame parts, the panel and the bottom plate, a steel core plate is arranged in the containing area to support the entrance door, a stand is further installed on the steel core plate and abuts against a side plate located at the side of the door plate frame through a supporting part, so that the stability of the entrance door is further improved, meanwhile, the side away from each other of the stand and the steel core plate is provided with a fireproof pad and abuts against the panel and the bottom plate respectively, so that the fireproof effect of the entrance door is improved, the double-layer heat insulation effect is achieved through the arrangement of the two groups of fireproof pads, the fire spreading is delayed, and the fireproof and theftproof effects of the entrance door are improved.
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Description

Technical Field

[0001] This application relates to the field of entrance door technology, and more particularly to a fireproof and burglarproof entrance door. Background Technology

[0002] Security doors are installed at the entrance of a residence, and their main function is to prevent illegal intrusion. However, existing security doors separate the functions of theft prevention and fire prevention, and even sacrifice fire resistance for the sake of theft prevention, making the door itself lack heat insulation. Once a fire occurs outside the door, the high temperature will quickly ignite the filling material inside the door, making the door itself a huge source of fire and spreading into the room, posing a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a fireproof and burglarproof entrance door to solve the above-mentioned problems.

[0004] The technical solution of this application is implemented as follows: This application provides a fireproof and burglarproof entrance door, including a door leaf, a door frame installed on the outside of the door leaf, the door leaf including two sets of symmetrically distributed door panel frames, one side of the door panel frame having a side frame portion, one set of door panel frames being connected to a bottom plate, and the other set of door panel frames being connected to a front panel, and when the two sets of door panel frames are connected, an accommodating area is formed between the two sets of side frame portions, the front panel and the bottom plate. Side panels are provided on both sides of the accommodating area, and the side panels abut against the frame. The accommodating area is also equipped with a steel core plate, on which a column is installed. The column is located between two sets of side plates. Supporting components are installed on both sides of the column. The supporting components include a fixing rod. A connecting plate is installed on one side of the fixing rod. The connecting plate abuts against the side of the column. A support rod is also installed on the fixing rod. The other end of the support rod abuts against the side plate. Fireproof pads are installed on the sides of the columns and steel core plates that are far apart from each other. The fireproof pads are located within the containment area and abut against the panel and the base plate respectively.

[0005] In one embodiment, a slot is provided on the fixed rod, one end of the support rod is movably disposed in the slot, and a support pad is provided on the side of the support rod away from the fixed rod. By moving the support rod in the slot, the support pad is moved closer to or away from the side plate. When the support pad abuts against the side plate, the support pad is fixed to the side plate.

[0006] In one embodiment, when the fireproof pad is connected to the column, several hollow sections are formed between the fireproof pad and the steel core plate, and filler is placed in the hollow sections.

[0007] In one embodiment, the inner wall of the slot is provided with a threaded groove, and the outer periphery of the support rod is provided with a threaded protrusion corresponding to the threaded groove. Through the cooperation of the threaded protrusion and the threaded groove, the support rod is threadedly connected to the fixed rod. By rotating the support rod within the slot, the support pad can be moved closer to or further away from the fixed rod.

[0008] In one embodiment, when two sets of door panel frames abut against each other, the outer periphery of the two sets of door panel frames is bonded with an edge banding strip, which covers the joint formed by the abutment of the two sets of door panel frames.

[0009] In one embodiment, the panel and base plate are connected to the fireproof pad by adhesive bonding.

[0010] In one embodiment, the connecting plate is provided with a through hole, and the column is provided with a bolt hole at the position corresponding to the through hole. When the connecting plate is on the column, the through hole and the bolt hole are aligned and bolts are installed to fix the support component to the column.

[0011] The advantages or beneficial effects of the above technical solutions include at least the following: This application discloses a fireproof and burglarproof entrance door. A steel core plate at the center of the entrance door provides core rigid support. A column connecting to the supporting components is installed on one side of the steel core plate, and the support rods in the supporting components abut against the side plates in the door frame. Therefore, the supporting components, through the connection plate fitting against the column and the support rods abutting against the side plates, can disperse the force when impacted by external forces. Furthermore, fireproof pads are installed on both sides of the entrance door, forming a continuous and uninterrupted fireproof layer in the event of a fire. The two sets of fireproof pads force flames to pass through multiple obstacles, thus slowing the spread of the fire and improving the overall fireproof effect of the entrance door. This enhances both fireproof and burglarproof capabilities, addressing the problem that existing entrance doors only improve a single function, thus posing certain safety hazards. Attached Figure Description

[0012] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the description thereof, serve to explain the principles of the present application. These drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification.

[0013] Figure 1 An exploded view of the entrance door according to an embodiment of this application is shown; Figure 2 A cross-sectional structural diagram of the entrance door according to an embodiment of this application is provided; Figure 3 A schematic diagram of the support component installed on the column according to an embodiment of this application is shown; Figure 4 A partial cross-sectional structural diagram of the support component according to an embodiment of this application is shown; Figure 5 A structural schematic diagram of the door panel frame according to an embodiment of this application is shown; Reference numerals: 1. Door panel frame; 11. Frame part; 12. Base plate; 13. Panel; 2. Side panels; 3. Steel core plate; 4. Columns; 5. Supporting components; 51. Fixing rod; 511. Connecting plate; 512. Groove; 5121. Threaded groove; 52. Support rod; 521. Support pad; 522. Threaded protrusion; 6. Fireproof mat; 7. Filler. Detailed Implementation

[0014] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0015] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this application are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0017] It should be noted that the terms "a" and "several" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0018] The names of the messages or information exchanged between multiple devices in the embodiments of this application are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0019] Reference Figures 1-5A fireproof and burglarproof entrance door includes a door leaf, a door frame installed on the outside of the door leaf, and the door frame includes two sets of symmetrically distributed door panel frames 1. One side of the door panel frame 1 has a side frame portion 11. One set of door panel frames 1 is connected to a bottom plate 12, and the other set of door panel frames 1 is connected to a front panel 13. When the two sets of door panel frames 1 are connected, an accommodating area is formed between the two sets of side frame portions 11, the front panel 13 and the bottom plate 12. Side panels 2 are provided on both sides of the accommodating area. The side panels 2 abut against the side frame portions 11. The side frame portions 11, the front panel 13 and the bottom plate 12 are made of the same material. A steel core plate 3 is also installed within the accommodating area. The steel core plate 3 provides core rigid support for the door panel, serving as the load-bearing skeleton inside the door panel. This fundamentally improves the overall rigidity of the door panel, preventing it from easily bending or breaking under external forces. A column 4 is installed on the steel core plate 3. The column 4 can be made of metal or wood and is located between the two sets of side panels 2. Supporting components 5 are installed on both sides of the column 4. The column 4 and the supporting components 5 form a three-dimensional force-bearing structure, changing the traditional single-plane force-bearing mode of the door panel and dispersing the force of external impacts such as prying with a crowbar or impacts from hard objects to all directions. The transmission of stress reduces the risk of damage caused by concentrated local forces. The support component 5 includes a fixed rod 51, with a connecting plate 511 on one side of the fixed rod 51. The connecting plate 511 abuts against the side of the column 4. A support rod 52 is also installed on the fixed rod 51, with the other end of the support rod 52 abutting against the side plate 2. The support component 5 forms internal multi-point support by abutting against the column 4 through the connecting plate 511 and against the side plate 2 through the support rod 52. This further strengthens the internal structural connection of the door panel, prevents internal loosening under long-term use or external impact, and ensures the durability of the anti-theft performance. Fireproof pads 6 are installed on the sides of the uprights 4 and the steel core plate 3 that are far apart from each other. The fireproof pads 6 are located within the accommodating area and abut against the panel 13 and the bottom plate 12 respectively. The panel 13 and the bottom plate 12 are connected to the fireproof pads 6 by adhesive bonding. The adhesive bonding ensures that the fireproof pads 6 are tightly fitted to the panel 13 and the bottom plate 12 without any loose gaps, preventing the fireproof pads 6 from shifting under high temperatures and causing the fireproof layer to break. This ensures the continuity of fire protection. Furthermore, after the two sets of fireproof pads 6 are fixed to the panel 13 and the bottom plate 12, the overall rigidity of the door panel is improved, reducing the impact of external impacts on the interior. The shaking of the structure helps to enhance the impact resistance. The fireproof pad 6 is made of aerogel felt, which is a highly efficient fireproof and heat-insulating material with high temperature resistance and low thermal conductivity. It can effectively block heat conduction in the event of a fire, prevent the temperature on the outside of the door panel from rising rapidly, and buy time for people inside to escape. By tightly adhering to the panel 13, the bottom plate 12 and the internal structure, a continuous fireproof layer is formed, which can block the spread of fire and high temperature conduction. At the same time, the side plate 2 and the frame part 11 abut against the sides of the sealed accommodation area, reducing the smoke penetration channel.

[0020] Based on the above structure, by bonding the two sets of fireproof pads 6 to the panel 13 and bottom plate 12 of the entrance door, a continuous and uninterrupted fireproof layer can be formed when a fire occurs on one side of the panel 13 and bottom plate 12. This blocks the path of flames penetrating through the gaps inside the door panel, slowing down the spread of fire. As a result, the flames need to pass through the two sets of fireproof pads 6 to travel from one side of the entrance door to the other. Furthermore, the side plate 2 is in close contact with the frame portion 11, sealing both sides of the accommodating area and reducing the penetration of smoke into one side of the entrance door through the gap between the side plate 2 and the frame portion 11. At the same time, the side plate 2 can also block the gap formed by the two sets of door panel frames 1. This prevents the risk of prying open the entrance door through gaps, improves fire resistance and anti-theft performance, and forms a dual fire protection system of fire resistance and smoke isolation through the continuous fireproof pad 6 and the sealing design of the side panel 2, comprehensively improving the fire safety level of the entrance door and meeting the core usage requirements of a fireproof entrance door. At the same time, through the cooperation of the support component 5 and the column 4, the entrance door can be supported as a whole and external impacts can be dispersed, thereby ensuring the anti-theft and impact resistance of the entrance door. Through the cooperation of two sets of fireproof pads 6 and support components 5, the fire resistance and anti-theft performance of the entrance door can be improved, thereby improving the overall applicability of the entrance door.

[0021] In one embodiment, reference is made to Figure 1 , Figure 3 and Figure 4 The fixed rod 51 is provided with a slot 512. One end of the support rod 52 is movable and set in the slot 512. A support pad 521 is provided on the side of the support rod 52 away from the fixed rod 51. By moving the support rod 52 in the slot 512, the support pad 521 moves closer to or away from the side plate 2. When the support pad 521 abuts against the side plate 2, the support pad 521 is fixed on the side plate 2. The support rod 52 can precisely adjust the support force according to the position of the side plate 2. After the support pad 521 rigidly abuts against the side plate 2, it is fixed, which further strengthens the connection strength between the column 4 and the side plate 2, avoids loosening of the internal support, improves the door panel's resistance to deformation, reduces the movement space after the pry bar is inserted, and thus improves the support stability of the door panel.

[0022] In one embodiment, reference is made to Figure 1 and Figure 2 When the fireproof pad 6 is connected to the column 4, several hollow sections are formed between the fireproof pad 6 and the steel core board 3. The hollow sections are filled with filler 7. The filler 7 can be made of flame-retardant materials such as flame-retardant rock wool or ceramic fiber. Together with the fireproof pad 6 made of aerogel felt, it forms a double-layer fireproof structure, which prolongs the time for fire to penetrate. At the same time, the hollow section design reduces the weight of the door panel and allows the filler 7 to be evenly distributed, ensuring comprehensive fireproof and heat insulation. Meanwhile, the filler 7 enhances the internal density of the door panel and improves the overall weight and rigidity of the door panel.

[0023] In one embodiment, reference is made to Figure 1 , Figure 3 and Figure 4 The inner wall of the slot 512 is provided with a threaded groove 5121, and the outer periphery of the support rod 52 is provided with a threaded protrusion 522 corresponding to the threaded groove 5121. Through the cooperation of the threaded protrusion 522 and the threaded groove 5121, the support rod 52 is threadedly connected to the fixed rod 51. The threaded connection has self-locking properties, and the support pad 521 is not easy to loosen after it is attached to the side plate 2. Even if it is subjected to external impact, it can maintain the support strength and improve the anti-destruction stability of the internal structure. By rotating the support rod 52 in the slot 512, the support pad 521 can move closer to or away from the fixed rod 51. The threaded connection can precisely control the contact force of the support pad 521, reduce structural gaps, improve sealing performance, and reduce the risk of flue gas leakage.

[0024] In one embodiment, reference is made to Figure 1 , Figure 2 and Figure 5 When the two sets of door panel frames 1 abut together, the outer periphery of the two sets of door panel frames 1 is bonded with an edge strip. The edge strip covers the joint formed by the abutment of the two sets of door panel frames 1. The edge strip can play a sealing role, blocking the channel for flames and smoke to penetrate from the joint, supplementing the protection blind spots of the internal fireproof structure, and the edge strip covers the gap of the joint, preventing tools such as pry bars from being inserted into the gap to pry the door panel, improving the integrity of anti-pry protection, thereby improving the anti-theft effect.

[0025] In one embodiment, reference is made to Figure 1 , Figure 3 and Figure 4 The connecting plate 511 has through holes, and the column 4 has bolt holes at the corresponding positions of the through holes. When the connecting plate 511 is on the column 4, the through holes and bolt holes are aligned and bolts are installed to fix the support component 5 to the column 4. The bolt connection has high strength and stability, which can effectively resist the damage of external forces to the support component 5, ensure the rigid connection between the column 4 and the support component 5, improve the overall resistance to damage of the door panel, enhance the anti-theft effect, and prevent the support component 5 from shifting by bolt fixing, maintain the sealing of the internal structure, reduce gaps caused by structural loosening, and help improve the fireproof sealing performance.

[0026] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Those skilled in the art should understand that the above embodiments are merely for illustrative purposes and are not intended to limit the scope of this application. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of this application.

Claims

1. A fireproof and burglarproof entrance door, comprising a door leaf, wherein a door frame is installed on the outer side of the door leaf, characterized in that: The door leaf includes two sets of symmetrically distributed door panel frames. Each door panel frame has a side frame portion on one side. One set of door panel frames is connected to a bottom plate, and the other set of door panel frames is connected to a front panel. When the two sets of door panel frames are connected, an accommodating area is formed between the two sets of side frames, the front panel, and the bottom plate. Side panels are provided on both sides of the accommodating area, and the side panels abut against the frame portion; A steel core plate is also provided in the accommodating area, and a column is provided on the steel core plate. The column is located between the two sets of side plates. Supporting components are provided on both sides of the column. The supporting components include a fixing rod. A connecting plate is provided on one side of the fixing rod. The connecting plate abuts against the side of the column. A support rod is also installed on the fixing rod. The other end of the support rod abuts against the side plate. Fireproof pads are provided on the sides of the column and the steel core plate that are far apart from each other. The fireproof pads are located within the accommodating area and abut against the panel and the base plate respectively.

2. The fireproof and burglarproof entrance door according to claim 1, characterized in that: The fixed rod is provided with a slot, one end of the support rod is movably disposed in the slot, and a support pad is provided on the side of the support rod away from the fixed rod. By moving the support rod in the slot, the support pad is moved closer to or away from the side plate. When the support pad abuts against the side plate, the support pad is fixed to the side plate.

3. The fireproof and burglarproof entrance door according to claim 1, characterized in that: When the fireproof pad is connected to the column, several hollow sections are formed between the fireproof pad and the steel core plate, and filler material is placed in the hollow sections.

4. The fireproof and burglarproof entrance door according to claim 2, characterized in that: The inner wall of the slot is provided with a threaded groove, and the outer periphery of the support rod is provided with a threaded protrusion corresponding to the threaded groove. Through the cooperation of the threaded protrusion and the threaded groove, the support rod is threadedly connected to the fixed rod. The support pad moves closer to or further away from the fixed rod by rotating the support rod within the slot.

5. The fireproof and burglarproof entrance door according to claim 1, characterized in that: When the two sets of door panel frames abut together, the outer periphery of the two sets of door panel frames is bonded with an edge banding strip, which covers the seam formed by the abutment of the two sets of door panel frames.

6. The fireproof and burglarproof entrance door according to claim 1, characterized in that: The panel and the base plate are connected to the fireproof pad by adhesive bonding.

7. The fireproof and burglarproof entrance door according to claim 4, characterized in that: The connecting plate is provided with through holes, and the column is provided with bolt holes corresponding to the positions of the through holes. When the connecting plate is located on the column, the through holes and the bolt holes are aligned and bolts are installed to fix the supporting component to the column.