Combined wooden fireproof door frame structure

Abstract

The utility model provides a combined wooden fireproof door frame structure which comprises a steel door frame and two combined fireproof doors, connecting shafts are connected to two corners of the top end of the inner wall of the steel door frame and two corners of the bottom end of the inner wall of the steel door frame in a telescopic mode, shaft holes are formed in the corners of the top ends and the corners of the bottom ends of the two combined fireproof doors, and the connecting shafts are connected with the connecting shafts in a telescopic mode. And bearings are fixedly mounted in the two shaft holes. The steel door frame and the combined fireproof door rotate in a nested mode through the connecting shafts and the shaft holes formed in the top end and the bottom end of the combined fireproof door, the connecting shafts are arranged in a telescopic mode, traditional hinged transmission connection is replaced, assembly and disassembly between the combined fireproof door and the steel door frame are effectively improved, and the service life of the combined fireproof door is prolonged. According to the combined fireproof door, the honeycomb weight reduction plate, the fireproof rock plate and the stainless steel panel are matched, so that the fireproof performance of the combined fireproof door is ensured, the weight of the combined fireproof door is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire doors and relates to a combined wooden fire door frame structure. Background Technique

[0002] Fire door frames are currently used in building houses. By installing fire doors in stairwells, when a fire occurs, they can effectively block the fire source, thereby improving the safety of the building.

[0003] The fire door frame is formed by combining the door frame and the door body. Traditionally, the door frame and the door body are mainly hinged by hinges. When the fire door is damaged and needs to be replaced, the hinges need to be disassembled, and then a new fire door needs to be assembled. The disassembly and assembly efficiency of the fire door is low, which affects the assembly between the door body and the door frame. Therefore, we designed a combined wooden fire door frame structure to solve the above technical problems. Summary of the Invention

[0004] The purpose of the utility model is to provide a combined wooden fire door frame structure to solve the problems raised in the above background technique.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A combined wooden fire door frame structure includes a steel door frame and two combined fire doors. At both corners of the top and bottom of the inner wall of the steel door frame, telescopic connection shafts can be connected. At the corners of the top and bottom of the two combined fire doors, shaft holes are opened. Inside both of the shaft holes, bearings are fixedly installed. The ends of the two connection shafts that are aligned extend into the shaft holes and are nested with the bearings.

[0006] In the above combined wooden fire door frame structure, cavities are opened at the top and bottom of the steel door frame. The top of the connection shaft extends into the cavity and is fixedly provided with a connection block. On both sides of the top of the connection block, limiting rods are inserted and connected. The bottom of the limiting rod is fixedly connected to the bottom cavity wall of the cavity, and the top of the limiting rod is fixedly connected to the top cavity wall of the cavity.

[0007] In the above combined wooden fire door frame structure, reset springs are nested on the tops of both limiting rods. The top of the reset spring is fixedly connected to the top cavity wall of the cavity, and the bottom of the reset spring is fixedly connected to the top of the connection block.

[0008] In the above combined wooden fire door frame structure, an iron block is fixedly installed at the center of the top of the connection block. At a position aligned with the iron block, an electromagnet fixedly connected to the top cavity wall of the cavity is provided. The electromagnet is adsorbed and connected to the iron block.

[0009] In the above combined wooden fire door frame structure, a plurality of mounting holes are opened at equal intervals on both sides of the steel door frame.

[0010] In the above-mentioned combined wooden fireproof door frame structure, the two combined fireproof doors are composed of honeycomb weight-reducing plates, fireproof rock plates and stainless steel panels. Fireproof rock plates are fixedly bonded to both sides of the honeycomb weight-reducing plates, and stainless steel panels are coated on the surfaces of the two fireproof rock plates.

[0011] In the above-mentioned combined wooden fireproof door frame structure, transparent observation windows are fixedly installed at the tops of the two combined fireproof doors.

[0012] Compared with the prior art, the advantages of the combined wooden fireproof door frame structure of the present utility model are as follows:

[0013] 1. Between the steel door frame and the combined fireproof door, they are nested and rotated through a connecting shaft and shaft holes opened at the top and bottom ends of the combined fireproof door. The connecting shaft is telescopically arranged, replacing the traditional connection through hinge drive, effectively improving the assembly and disassembly between the combined fireproof door and the steel door frame, and improving the installation efficiency of the fireproof door frame.

[0014] 2. Through the cooperation of the honeycomb weight-reducing plate, the fireproof rock plate and the stainless steel panel, the combined fireproof door not only ensures the fireproof performance of the combined fireproof door, but also reduces the weight of the combined fireproof door and the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the combined wooden fireproof door frame structure of the present utility model.

[0016] Figure 2 is a schematic connection structure diagram of the steel door frame and the combined fireproof door of the combined wooden fireproof door frame structure of the present utility model.

[0017] Figure 3 is the Figure 2 partial enlarged view at A in the combined wooden fireproof door frame structure of the present utility model.

[0018] Figure 4 is a schematic cross-sectional structure diagram of the combined fireproof door of the combined wooden fireproof door frame structure of the present utility model.

[0019] In the figure, 1. Steel door frame; 2. Combined fireproof door; 3. Transparent observation window; 4. Installation hole; 5. Cavity; 6. Shaft hole; 7. Bearing; 8. Connecting shaft; 9. Electromagnet; 10. Connecting block; 11. Limiting rod; 12. Return spring; 13. Iron block; 14. Stainless steel panel; 15. Fireproof rock plate; 16. Honeycomb weight-reducing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following are specific embodiments of the present utility model and in combination with the drawings, the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0021] As Figures 1-4 shown, the combined wooden fireproof door frame structure of the present utility model includes a steel door frame 1 and two combined fireproof doors 2. Telescopic connection shafts 8 can be installed at both corners at the top end and both corners at the bottom end of the inner wall of the steel door frame 1. Axle holes 6 are provided at the corners at the top end and the bottom end of the two combined fireproof doors 2. Bearings 7 are fixedly installed inside the two axle holes 6. The ends of the two aligned connection shafts 8 extend into the axle holes 6 and are nested with the bearings 7.

[0022] Specifically, between the steel door frame 1 and the combined fireproof door 2, they are nested and rotated through the connection shafts 8 and the axle holes 6 opened at the top end and the bottom end of the combined fireproof door 2. The connection shafts 8 are telescopically arranged, replacing the traditional hinge drive connection, effectively improving the assembly and disassembly between the combined fireproof door 2 and the steel door frame 1, and improving the installation efficiency of the fireproof door frame.

[0023] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, in the combined wooden fireproof door frame structure of the present utility model, cavities 5 are provided at both the top and the bottom of the steel door frame 1. The top end of the connection shaft 8 extends into the cavity 5 and is fixedly provided with a connection block 10. Both sides of the top end of the connection block 10 are inserted and connected with limit rods 11. The bottom end of the limit rod 11 is fixedly connected to the bottom cavity wall of the cavity 5, and the top end of the limit rod 11 is fixedly connected to the top cavity wall of the cavity 5.

[0024] Both top ends of the two limit rods 11 are nested and connected with return springs 12. The top end of the return spring 12 is fixedly connected to the top cavity wall of the cavity 5, and the bottom end of the return spring 12 is fixedly connected to the top end of the connection block 10.

[0025] A iron block 13 is fixedly installed at the center of the top end of the connection block 10. An electromagnet 9 fixedly connected to the top cavity wall of the cavity 5 is arranged at the position aligned with the iron block 13. The electromagnet 9 is adsorbed and connected to the iron block 13.

[0026] Specifically, through the cooperation of the electromagnet 9, the iron block 13 and the return spring 12, the telescoping of the connection shaft 8 can be realized. Through the telescoping of the connection shaft 8, the connection shaft 8 is nested and separated from the axle hole 6, facilitating the installation and disassembly of the combined fireproof door 2 and the steel door frame 1.

[0027] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, in the combined wooden fireproof door frame structure of the present utility model, a plurality of mounting holes 4 are equidistantly provided on both sides of the steel door frame 1.

[0028] Specifically, through the provided installation holes 4, the installation of the steel door frame 1 is facilitated.

[0029] The two-panel combined fire door 2 is composed of a honeycomb weight-reducing plate 16, a fireproof rock plate 15, and a stainless steel panel 14. The honeycomb weight-reducing plate 16 is fixedly bonded with the fireproof rock plates 15 on both sides, and the surfaces of the two fireproof rock plates 15 are covered with the stainless steel panel 14.

[0030] Specifically, through the cooperation of the honeycomb weight-reducing plate 16 and the fireproof rock plate 15, without affecting fire prevention, the weight of the fire door is reduced, and the production cost is lowered.

[0031] Transparent observation windows 3 are fixedly installed at the tops of the two-panel combined fire doors 2.

[0032] Specifically, through the installed transparent observation windows 3, it is convenient to observe the internal situation without opening the fire door.

[0033] In specific implementation, when assembling the steel door frame 1 and the combined fire door 2, first, the electromagnet 9 is powered on. The adsorption force between the electromagnet 9 and the iron block 13 is greater than the elastic force of the two return springs 12. At this time, the connecting block 10 moves upward. By the upward movement of the connecting block 10, the connecting shaft 8 is driven to move, so that the connecting shaft 8 moves into the cavity 5. Then, the combined fire door 2 is manually placed at the inner wall of the steel door frame 1, and the shaft hole 6 is aligned with the position of the connecting shaft 8. Then, the electromagnet 9 is turned off. At this time, the connecting block 10 is pushed downward by the return spring 12. By the downward movement of the connecting block 10, the connecting shaft 8 is driven to move downward, so that the connecting shaft 8 is inserted into the shaft hole 6 and nested with the inner ring of the bearing 7 inside the shaft hole 6, completing the assembly of the combined fire door 2 and the steel door frame 1, replacing the traditional assembly through hinges, and improving the disassembly and assembly efficiency between the combined fire door 2 and the steel door frame 1.

[0034] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The specific embodiments described herein are only illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A combined wooden fireproof door frame structure, comprising a steel door frame (1) and two combined fireproof doors (2), characterized in that: The inner wall of the steel door frame (1) is telescopically connected with connecting shafts (8) at both corners of the top end and the bottom end, and the two combined fire doors (2) are provided with shaft holes (6) at the corners of the top end and the bottom end, and the two shaft holes (6) are fixedly installed with bearings (7) inside, and the ends of the two connecting shafts (8) that are aligned extend into the shaft holes (6) and are nested and connected with the bearings (7).

2. The combined wooden fireproof door frame structure according to claim 1, characterized in that: The top and bottom of the steel door frame (1) are both provided with cavities (5), the top end of the connecting shaft (8) extends to the inside of the cavity (5) and is fixedly provided with a connecting block (10), both sides of the top of the connecting block (10) are inserted and connected with limiting rods (11), the bottom end of the limiting rod (11) is fixedly connected to the bottom wall of the cavity (5), and the top end of the limiting rod (11) is fixedly connected to the top wall of the cavity (5).

3. The combined wooden fireproof door frame structure according to claim 2, characterized in that: The tops of the two limit rods (11) are both nested with return springs (12), the top ends of the return springs (12) are fixedly connected to the top wall of the cavity (5), and the bottom ends of the return springs (12) are fixedly connected to the top of the connection block (10).

4. The combined wooden fireproof door frame structure according to claim 3, characterized in that: An iron block (13) is fixedly mounted at the center of the top of the connection block (10), and an electromagnet (9) fixedly connected to the top wall of the cavity (5) is arranged at a position aligned with the iron block (13), and the electromagnet (9) is adsorbed and connected to the iron block (13).

5. The combined wooden fireproof door frame structure according to claim 1, characterized in that: A plurality of mounting holes (4) are equidistantly provided on both sides of the steel door frame (1).

6. The combined wooden fireproof door frame structure according to claim 1, characterized in that: The two combined fire doors (2) are composed of a honeycomb weight-reducing plate (16), a fireproof rock plate (15) and a stainless steel panel (14). The fireproof rock plates (15) are fixedly bonded to both sides of the honeycomb weight-reducing plate (16), and the surfaces of the two fireproof rock plates (15) are covered with a stainless steel panel (14).

7. The combined wooden fireproof door frame structure according to claim 6, characterized in that: Transparent observation windows (3) are fixedly mounted on the tops of the two combined fire doors (2).

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