Steel fireproof door with anti-seismic effect
Through the combined design of reinforced rib structure and flame retardant and heat insulation layer, the steel fire-proof door has been solved in terms of impact resistance, earthquake resistance and weak heat insulation effects, and has achieved higher structural strength and fire-proof performance.
Patent Information
- Application Number
- CN202421713272.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The existing steel fireproof doors have weak impact resistance, shock resistance and flame retardant, heat insulation effects, and the structural strength of the door leaf is limited.
The combination design of reinforcement rib structure and flame retardant and heat insulation layer is adopted. Through the connection between reinforcement rib 1 and reinforcement rib 2 and the reinforcement plate, the structure of screws and limit grooves is combined to improve the overall structural strength of the door leaf, and the flame retardant layer, fill layer and heat insulation layer are used to improve fire resistance.
It significantly improves the shock, impact, flame retardant and heat insulation effects of steel fire doors, ensuring the structural stability and fire resistance of the door leaf.
Smart Images

Figure CN223190336U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel fire doors, in particular to a steel fire door with earthquake-resistant effect. Background Art
[0002] As we all know, steel fire doors are a type of fire safety equipment used in buildings. They use steel as the main structural material. Steel fire doors are widely used in various buildings, such as commercial buildings, industrial plants, public places and residences, to provide reliable fire safety protection.
[0003] In the utility model patent with patent authorization announcement number CN216277567U, a building fire door with an earthquake-resistant structure is disclosed, which includes a mounting frame, a movable groove is fixedly provided on the inner side of the mounting frame, and connecting rods are fixed on the top and bottom ends of both sides of the movable groove through a buffer mechanism. A connecting block is provided on the sliding sleeve of the connecting rod, and a first buffer spring is provided on the movable sleeve of the connecting rod at the top and bottom of the connecting block. The side of the connecting block away from the movable groove is fixedly connected to a fixed frame through a plurality of buffer seats, and a door leaf is hinged in the fixed frame.
[0004] However, existing steel fire doors also have certain shortcomings. Most existing steel fire doors simply use door leaves to resist external force impact. Due to the limited structural strength of the door leaves themselves, the impact and earthquake resistance of the door leaves are relatively weak.
[0005] Secondly, the existing steel fire doors are simply fireproofed by using door leaves. Due to the influence of the material of the door leaves themselves, the flame retardant and heat insulation effects of the door leaves are relatively weak. Utility Model Content
[0006] The purpose of the utility model is to provide a steel fire door with earthquake-resistant effect, which solves the problem that the existing steel fire doors simply use door leaves to resist external force impact, and the impact and earthquake resistance of the door leaves are relatively weak due to the limited structural strength of the door leaves themselves; and solves the problem that the existing steel fire doors simply use door leaves for fire protection, and the flame retardant and heat insulation effects of the door leaves are weak due to the influence of the material of the door leaves themselves.
[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a steel fire door with earthquake-resistant effect, comprising a door frame, wherein the inner side wall of the door frame is provided with two symmetrically distributed steel fire door bodies, the front of each steel fire door body is provided with a handle, the back of each steel fire door body is fixedly connected to two evenly distributed reinforcement plates, the back of each steel fire door body is in contact with a first reinforcement rib, the first reinforcement rib is in contact with the reinforcement plate, a second reinforcement rib is fixedly connected between the first reinforcement rib and the reinforcement plate, and the second reinforcement rib is in contact with the steel fire door body;
[0008] The middle part of the back side of the reinforcing rib 1 contacts the end head, and the end face of the end head close to the steel fire door body is fixedly connected with an end column, and the end column contacts the reinforcing rib 1, and the end face of the end column close to the steel fire door body is fixedly connected with a screw, and the screw is connected to the steel fire door body through a threaded connection, and a limiting groove is provided on the surface of the end column, and an insert plate is slidably connected to the inside of the reinforcing rib 1, and the insert plate is slidably connected to the limiting groove, and the end face of the insert plate away from the end column is fixedly connected with the end plate.
[0009] Preferably, a plurality of the limiting grooves are provided, and the plurality of limiting grooves are arranged in a circular array on the end column. The provision of the limiting grooves facilitates plugging and use with the plug-in board.
[0010] Preferably, once the end plate contacts the reinforcing rib, the end plate is slidably connected to the steel fire door body. The provision of the end plate makes it convenient for operators to pull the plug plate for moving and use.
[0011] Preferably, a tension spring is welded to the connecting end 1 of the end plate, and the other end of the tension spring is welded to the connecting end 2 inside the reinforcing rib 1. By providing the tension spring, the end plate can be connected for use.
[0012] Preferably, the interior of each of the steel fire door bodies is in contact with a flame retardant layer, the end face of the flame retardant layer close to the handle is in contact with a filling layer, the filling layer is in contact with the steel fire door body, the end face of the filling layer close to the handle is in contact with a heat insulation layer, the heat insulation layer is in contact with the steel fire door body. By arranging the flame retardant layer, the filling layer and the heat insulation layer, the fire protection effect of the steel fire door body can be improved.
[0013] Preferably, the flame retardant layer is a sintered ceramic fiber board, the filling layer is an aluminum silicate fiber blanket, and the thermal insulation layer is a mineral wool board. The thickness of the flame retardant layer, the filling layer, and the thermal insulation layer are all 2 cm. By setting the sintered ceramic fiber board, the aluminum silicate fiber blanket, and the mineral wool board, the flame retardant layer, the filling layer, and the thermal insulation layer have good flame retardant and thermal insulation effects.
[0014] Preferably, each of the steel fire door bodies is provided with an edge sealing layer at the vertical end close to the door frame side, and the edge sealing layer is in contact with the door frame, insulation layer, filling layer and flame retardant layer. The edge sealing layer is made of PVC material, and the thickness of the edge sealing layer is 2 cm. Through the setting of the edge sealing layer, the flame retardant layer, filling layer and insulation layer can be edge sealed, and the PVC material has good wear resistance and durability.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0016] 1. The utility model can improve the flame retardant effect of the steel fire door by setting the flame retardant layer. Under the action of the thermal insulation layer, the thermal insulation effect of the steel fire door can be improved. Under the action of the filling layer, the rapid conduction of heat can be avoided. In combination with the setting of the edge sealing layer, the flame retardant layer, the thermal insulation layer and the thermal insulation layer can be protected to ensure the good fire protection effect of the steel fire door.
[0017] 2. The present invention can lock the reinforcing rib 1 by setting up structures such as the end head and the screw, and cooperate with the function of the reinforcing rib 2 and the reinforcement plate to improve the overall structural strength of the steel fire door, thereby ensuring the seismic effect of the steel fire door. Under the action of the limit groove, the plug plate and other structures, the end column can be limited to avoid the problem of screw vibration and derailment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;
[0019] Figure 2 For the utility model Figure 1 Rear view stereogram;
[0020] Figure 3 For the utility model Figure 2 A top cross-sectional view of the reinforcing rib;
[0021] Figure 4 For the utility model Figure 3 Magnified view of the end;
[0022] Figure 5 For the utility model Figure 4 A magnified view of point A;
[0023] Figure 6 For the utility model Figure 3 Enlarged view of the edge banding layer.
[0024] In the figure: 1. Door frame; 2. Steel fire door body; 3. Handle; 4. Reinforcement plate; 5. Reinforcement rib 1; 6. Reinforcement rib 2; 7. End; 8. End column; 9. Screw; 10. Limiting groove; 11. Insert plate; 12. End plate; 13. Tension spring; 14. Flame retardant layer; 15. Filling layer; 16. Insulation layer; 17. Edge sealing layer. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 A steel fire door with earthquake resistance includes a door frame 1, the inner side wall of the door frame 1 is provided with two symmetrically distributed steel fire door bodies 2, the front of each steel fire door body 2 is provided with a handle 3, the back of each steel fire door body 2 is fixedly connected to two evenly distributed reinforcement plates 4, the back of each steel fire door body 2 is in contact with a reinforcing rib 1 5, the reinforcing rib 1 5 is in contact with the reinforcement plate 4, and a reinforcing rib 2 6 is fixedly connected between the reinforcing rib 1 5 and the reinforcement plate 4, and the reinforcing rib 2 6 is in contact with the steel fire door body 2;
[0027] The middle part of the back side of the reinforcing rib 5 contacts the end head 7, and the end face of the end head 7 close to the steel fire door body 2 is fixedly connected to the end column 8, and the end column 8 contacts the reinforcing rib 5, and the end face of the end column 8 close to the steel fire door body 2 is fixedly connected to the screw 9, and the screw 9 is connected to the steel fire door body 2 through a thread. A limiting groove 10 is provided on the surface of the end column 8, and an insert plate 11 is slidably connected to the inside of the reinforcing rib 5, and the insert plate 11 is slidably connected to the limiting groove 10, and the end face of the insert plate 11 away from the end column 8 is fixedly connected to the end plate 12.
[0028] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 There are multiple limit grooves 10, and the multiple limit grooves 10 are arranged in a circular array on the end column 8. The setting of the limit grooves 10 makes it easy to cooperate with the plug-in plate 11 for plugging and use. The end plate 12 contacts the reinforcing rib 5, and the end plate 12 is slidably connected to the steel fire door body 2. The setting of the end plate 12 makes it convenient for the operator to pull the plug-in plate 11 for mobile use. A tension spring 13 is welded to the connecting end of the end plate 12, and the other end of the tension spring 13 is welded to the connecting end 2 inside the reinforcing rib 5. The end plate 12 can be connected and used through the setting of the tension spring 13.
[0029] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 The interior of each steel fire door body 2 is in contact with a flame retardant layer 14, and the end face of the flame retardant layer 14 close to the handle 3 is in contact with a filling layer 15, and the filling layer 15 is in contact with the steel fire door body 2. The end face of the filling layer 15 close to the handle 3 is in contact with a thermal insulation layer 16, and the thermal insulation layer 16 is in contact with the steel fire door body 2. By setting the flame retardant layer 14, the filling layer 15, and the thermal insulation layer 16, the fire prevention effect of the steel fire door body 2 can be improved.
[0030] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 The flame retardant layer 14 is a sintered ceramic fiber board, the filling layer 15 is an aluminum silicate fiber blanket, and the thermal insulation layer 16 is a mineral wool board. The thickness of the flame retardant layer 14, the filling layer 15, and the thermal insulation layer 16 are all 2 cm. Through the arrangement of the sintered ceramic fiber board, the aluminum silicate fiber blanket, and the mineral wool board, the flame retardant layer 14, the filling layer 15, and the thermal insulation layer 16 have good flame retardant and thermal insulation effects. A sealing edge layer 17 is provided at the vertical end of each steel fire door body 2 close to the door frame 1. The sealing edge layer 17 is in contact with the door frame 1, the thermal insulation layer 16, the filling layer 15 and the flame retardant layer 14. The sealing edge layer 17 is made of PVC and has a thickness of 2 cm. Through the arrangement of the edge sealing layer 17, the flame retardant layer 14, the filling layer 15, and the thermal insulation layer 16 can be edge-sealed, and the PVC material has good wear resistance and durability.
[0031] The specific implementation process of the utility model is as follows: when it is necessary to use a steel fire door with an anti-seismic effect, the fireproof effect of the steel fire door body 2 can be improved by setting the flame retardant layer 14, the filling layer 15, and the thermal insulation layer 16, and the flame retardant layer 14 is a sintered ceramic fiber board, the filling layer 15 is an aluminum silicate fiber blanket, and the thermal insulation layer 16 is a mineral wool board. By setting the sintered ceramic fiber board, the aluminum silicate fiber blanket, and the mineral wool board, the flame retardant layer 14, the filling layer 15, and the thermal insulation layer 16 have good flame retardant and thermal insulation effects. By setting the edge sealing layer 17, the flame retardant layer 14, the filling layer 15, and the thermal insulation layer 16 can be edge-sealed, and the PVC material has good wear resistance and durability.
[0032] By pushing the reinforcing rib 5 to contact the steel fire door body 2, and making the reinforcing rib 5 contact the reinforcement plate 4, then pulling the end plate 12 to move away from the reinforcing rib 5, so as to drive the plug plate 11 to move, the tension spring 13 is deformed, and then pushes the end head 7 to move towards the reinforcing rib 5, so that the end head 7 drives the end column 8 to insert into the reinforcing rib 5, and drives the screw 9 to contact the steel fire door body 2, and then the end head 7 drives the end column 8 to rotate, and then drives the screw 9 to rotate. , under the relationship of threaded connection, the screw 9 is locked, so that the reinforcing rib 1 5 is stable, and the end plate 12 is loosened to allow the tension spring 13 to restore its deformation, so as to pull the plug plate 11 into the limit groove 10, limit the end column 8, and avoid the problem of vibration and derailment of the screw 9, and then fix the reinforcing rib 2 6. Under the action of the reinforcing plate 4, reinforcing rib 1 5, and reinforcing rib 2 6, the reinforcement strength of the steel fire door body 2 can be improved, thereby improving the seismic and impact resistance of the steel fire door body 2.
[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A steel fire door with earthquake resistance, comprising a door frame (1), characterized in that: The inner side wall of the door frame (1) is provided with two symmetrically distributed steel fire door bodies (2), the front of each of the steel fire door bodies (2) is provided with a handle (3), the back of each of the steel fire door bodies (2) is fixedly connected with two evenly distributed reinforcement plates (4), the back of each of the steel fire door bodies (2) is in contact with a reinforcing rib (5), the reinforcing rib (5) is in contact with the reinforcement plate (4), the reinforcing rib (6) is fixedly connected between the reinforcing rib (5) and the reinforcement plate (4), and the reinforcing rib (6) is in contact with the steel fire door body (2); The middle part of the back side of the reinforcing rib (5) contacts the end head (7), and the end face of the end head (7) close to the steel fire door body (2) is fixedly connected with an end column (8), and the end column (8) contacts the reinforcing rib (5), and the end face of the end column (8) close to the steel fire door body (2) is fixedly connected with a screw (9), and the screw (9) is connected to the steel fire door body (2) through a thread, and a limiting groove (10) is provided on the surface of the end column (8), and the interior of the reinforcing rib (5) is slidably connected with an insert plate (11), and the insert plate (11) is slidably connected to the limiting groove (10), and the end face of the insert plate (11) away from the end column (8) is fixedly connected with an end plate (12).
2. The steel fire door with earthquake resistance according to claim 1, characterized in that: A plurality of the limiting grooves (10) are provided, and the plurality of limiting grooves (10) are arranged in a ring array on the end column (8).
3. The steel fire door with earthquake-resistant effect according to claim 1, characterized in that: The end plate (12) contacts the reinforcing rib (5), and the end plate (12) is slidably connected to the steel fire door body (2).
4. The steel fire door with earthquake resistance according to claim 1, characterized in that: A tension spring (13) is welded to the first connecting end of the end plate (12), and the other end of the tension spring (13) is welded to the second connecting end inside the first reinforcing rib (5).
5. The steel fire door with earthquake resistance according to claim 1, characterized in that: The interior of each steel fire door body (2) is in contact with a flame retardant layer (14), the end face of the flame retardant layer (14) close to the handle (3) is in contact with a filling layer (15), the filling layer (15) is in contact with the steel fire door body (2), the end face of the filling layer (15) close to the handle (3) is in contact with a heat insulation layer (16), and the heat insulation layer (16) is in contact with the steel fire door body (2).
6. The steel fire door with earthquake-resistant effect according to claim 5, characterized in that: The flame retardant layer (14) is a sintered ceramic fiber board, the filling layer (15) is an aluminum silicate fiber blanket, and the heat insulation layer (16) is a mineral wool board. The thickness of the flame retardant layer (14), the filling layer (15), and the heat insulation layer (16) are all 2 cm.
7. The steel fire door with earthquake-resistant effect according to claim 5, characterized in that: Each of the steel fire door bodies (2) is provided with an edge sealing layer (17) at the vertical end close to the door frame (1), and the edge sealing layer (17) is in contact with the door frame (1), the heat insulation layer (16), the filling layer (15) and the flame retardant layer (14). The edge sealing layer (17) is made of PVC and has a thickness of 2 cm.
Citation Information
Patent Citations
Building fireproof door with anti-seismic structure
CN216277567U