Fire door 7-shaped reinforced hinge backing plate

Abstract

The utility model discloses a fireproof door 7 character shape reinforcing hinge lining, relates to fireproof door hinge technical field, including door frame, the inboard rotation of door frame is connected with fireproof door body, a plurality of hinge components are commonly installed between door frame and fireproof door body, a plurality of left reinforcing plates are fixedly installed to the outboard of fireproof door body, the utility model discloses when using, through the left reinforcing plate and right reinforcing plate of 7 character shape can effectively from horizontal direction to fireproof door body and door frame reinforce support, left reinforcing plate disperses the tensile force of fireproof door body horizontal transversely, avoids the bolt single point stress on left lining, right reinforcing plate improves right lining and door frame connection intensity, and the normal opening and closing of both common effect guarantee fireproof door, and can effectively reduce due to lining bolt slack, make hinge shaft stress deviation, and then make the phenomenon of door leaf droop.

Description

Technical Field

[0001] This utility model relates to the field of fire door hinge technology, and in particular to a 7-shaped reinforced hinge liner for fire doors. Background Technology

[0002] In the field of building fire safety, fire doors, as important fire-resistant partitions, directly affect the effectiveness of personnel evacuation and fire control during a fire. Currently, existing fire door hinge plates mainly serve to connect the door frame and the fire door body. Common hinge plates only use bolts to fix the door leaf and the door frame vertically, but in practical applications, they cannot effectively support the fire door horizontally. Especially for large-sized fire doors, during long-term use, the weight of the door itself and frequent opening and closing will generate horizontal tension, causing the lining bolts to loosen, the hinge shaft to shift under force, and the door leaf to sag. Once the fire door sags, it will not only cause the door to not close tightly, reducing its fireproof and smoke-proof performance, but may also cause safety hazards, affecting personnel evacuation and fire rescue work. In view of this, this application proposes a 7-shaped reinforced hinge lining for fire doors. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fire door 7-shaped reinforced hinge liner.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A fire door 7-shaped reinforced hinge liner includes a door frame, with a fire door body rotatably connected to the inner side of the door frame. Multiple hinge assemblies are installed between the door frame and the fire door body. Multiple left reinforcing plates are fixedly installed on the outer side of the fire door body, and the other end of each left reinforcing plate is fixedly connected to a corresponding hinge assembly. Multiple right reinforcing plates are fixedly installed on the outer side of the door frame, and the other end of each right reinforcing plate is fixedly connected to a corresponding hinge assembly.

[0005] Preferably, each hinge assembly includes a left liner and a right liner, with each left liner installed on the outer side of the fire door body and each right liner installed on the inner side of the door frame. Each left liner has multiple hinge parts installed on its outer side, and each right liner has multiple mounting sleeves fixedly installed on its outer side. The multiple mounting sleeves with corresponding positions are rotatably connected to a pivot, and each hinge part is fixedly connected to the pivot with a corresponding position.

[0006] Preferably, each of the left reinforcing plate and the right reinforcing plate includes a fixing plate and a support plate, and each support plate is fixedly installed on the outside of the door frame and the fire door body, and each fixing plate is fixedly connected to the left lining plate and the right lining plate corresponding to the position, and each of the left lining plate, the right lining plate and each fixing plate has a plurality of first mounting holes correspondingly opened on the outside, and each of the support plates and the outside of the door frame and the fire door body has a plurality of second mounting holes correspondingly opened.

[0007] Preferably, the outer side of the fire door body is provided with a plurality of first mounting slots, and each left liner is fixedly installed in the corresponding first mounting slot. The outer side of the door frame is provided with a plurality of second mounting slots, and each right liner is fixedly installed in the corresponding second mounting slot.

[0008] Preferably, each of the fixed plates is connected at a right angle to the corresponding support plate, and each fixed plate is integrally formed with the corresponding support plate.

[0009] This utility model has the following beneficial effects: This utility model, through devices such as a left reinforcing plate, a right reinforcing plate, and a hinge assembly, effectively strengthens and supports the fire door body and frame horizontally using the L-shaped left and right reinforcing plates. The left reinforcing plate disperses the horizontal tension of the fire door body, preventing the bolts on the left liner from being stressed at a single point, while the right reinforcing plate increases the connection strength between the right liner and the door frame. The two work together to ensure the normal opening and closing of the fire door and effectively reduce the phenomenon of the door leaf sagging due to the hinge axis shifting under stress caused by the loosening of the liner bolts. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of the 7-shaped reinforced hinge liner for the fire door proposed in this utility model. Figure 2 A schematic diagram of the first and second mounting grooves for the fire door 7-shaped reinforced hinge liner proposed in this utility model. Figure 3 This is a schematic diagram of the installation structure of the left and right reinforcing plates of the 7-shaped reinforced hinge liner for the fire door proposed in this utility model. Figure 4 This is a schematic diagram of the hinge assembly structure of the 7-shaped reinforced hinge liner for the fire door proposed in this utility model.

[0011] In the diagram: 1. Door frame; 2. Fire door body; 3. Left reinforcing plate; 4. Right reinforcing plate; 5. First mounting groove; 6. Second mounting groove; 7. Fixing plate; 8. Support plate; 9. First mounting hole; 10. Left lining plate; 11. Right lining plate; 12. Second mounting hole; 13. Hinge; 14. Mounting sleeve; 15. Rotating shaft. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] This utility model provides a technical solution: such as Figure 1-4 As shown, the fire door's 7-shaped reinforced hinge liner includes a door frame 1. The fire door body 2 is rotatably connected to the inner side of the door frame 1. Multiple hinge assemblies are installed between the door frame 1 and the fire door body 2. Multiple left reinforcing plates 3 are fixedly installed on the outer side of the fire door body 2, and the other end of each left reinforcing plate 3 is fixedly connected to the corresponding hinge assembly. Multiple right reinforcing plates 4 are fixedly installed on the outer side of the door frame 1, and the other end of each right reinforcing plate 4 is fixedly connected to the corresponding hinge assembly. It should be noted that the left reinforcing plates 3 and right reinforcing plates 4 are fixedly connected to the corresponding fire door body 2 and door frame 1 by multiple bolts.

[0014] Furthermore, each hinge assembly includes a left liner 10 and a right liner 11, with each left liner 10 installed on the outside of the fire door body 2 and each right liner 11 installed on the inside of the door frame 1. Each left liner 10 has multiple hinge parts 13 installed on its outer side, and each right liner 11 has multiple mounting sleeves 14 fixedly installed on its outer side. The multiple mounting sleeves 14 with corresponding positions are rotatably connected to a pivot 15, and each hinge part 13 is fixedly connected to the pivot 15 with corresponding position. The opening and closing of the left liner 10 and the right liner 11 can be effectively realized through the pivot 15.

[0015] Furthermore, each left reinforcing plate 3 and right reinforcing plate 4 includes a fixing plate 7 and a supporting plate 8. Each supporting plate 8 is fixedly installed on the outside of the door frame 1 and the fire door body 2, respectively. Each fixing plate 7 is fixedly connected to the corresponding left lining plate 10 and right lining plate 11. Each left lining plate 10, right lining plate 11 and each fixing plate 7 have multiple first mounting holes 9 on their outer sides. Each supporting plate 8 has multiple second mounting holes 12 on their outer sides of the door frame 1 and the fire door body 2. The first mounting holes 9 and second mounting holes 12 facilitate the fixing of the left reinforcing plate 3 and right reinforcing plate 4 with external bolts. The left reinforcing plate 3 strengthens and fixes the left lining plate 10 to the fire door body 2, thereby effectively avoiding single-point support of the bolts on the left lining plate 10. The bolts on the left reinforcing plate 3 can effectively disperse the horizontal tension of the fire door body 2, thereby effectively supporting the horizontal direction of the fire door body 2. Correspondingly, the right reinforcing plate 4 improves the connection strength of the right lining plate 11.

[0016] Furthermore, the outer side of the fire door body 2 is provided with multiple first mounting grooves 5, and each left liner 10 is fixedly installed in the corresponding first mounting groove 5. The outer side of the door frame 1 is provided with multiple second mounting grooves 6, and each right liner 11 is fixedly installed in the corresponding second mounting groove 6. Through the first mounting grooves 5 and the second mounting grooves 6, it is easy to make the side of the fire door body 2 effectively fit with the side of the door frame 1 when the fire door body 2 is closed, and with the assistance of the external sealing strip, gaps can be effectively reduced and the sealing effect can be improved.

[0017] Furthermore, each fixed plate 7 is connected at right angles to the corresponding support plate 8, and each fixed plate 7 is integrally formed with the corresponding support plate 8, which facilitates the improvement of the body strength of the left reinforcing plate 3 and the right reinforcing plate 4.

[0018] This utility model provides a fire door 7-shaped reinforced hinge liner. The specific working principle is as follows: During installation, the left liner 10 is first embedded into the first mounting groove 5 on the outside of the fire door body 2. Using the first mounting hole 9, the left liner 10 is fixedly connected to the fixing plate 7 of the left reinforcing plate 3 by bolts. At the same time, the support plate 8 of the left reinforcing plate 3 is fixed to the fire door body 2 through the second mounting hole 12, so as to realize the reinforced connection between the left liner 10 and the fire door body 2. Similarly, the right liner 11 is embedded into the second mounting groove 6 on the outside of the door frame 1. The right liner 11 is fixed to the fixing plate 7 of the right reinforcing plate 4 by bolts through the first mounting hole 9. The support plate 8 of the right reinforcing plate 4 is fixed to the door frame 1 through the second mounting hole 12, so as to complete the stable connection between the right liner 11 and the door frame 1. During daily use of the fire door body 2, the horizontal tension is generated due to the weight of the fire door body 2 itself and frequent opening and closing. At this time, the 7-shaped left reinforcing plate 3 and right reinforcing plate 4 can strengthen the support of the fire door body 2 and the door frame 1 in the horizontal direction. The left reinforcing plate 3 disperses the horizontal tension of the fire door body 2 and avoids the bolts on the left lining plate 10 being stressed at a single point. The right reinforcing plate 4 increases the connection strength between the right lining plate 11 and the door frame 1. The two work together to effectively disperse the weight of the fire door, reduce the sagging caused by gravity, and ensure the normal opening and closing of the fire door.

[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fire door 7-shaped reinforced hinge liner, including a door frame (1), characterized in that, The fire door body (2) is rotatably connected to the inner side of the door frame (1). Multiple hinge assemblies are installed between the door frame (1) and the fire door body (2). Multiple left reinforcing plates (3) are fixedly installed on the outer side of the fire door body (2), and the other end of each left reinforcing plate (3) is fixedly connected to the hinge assembly corresponding to the position. Multiple right reinforcing plates (4) are fixedly installed on the outer side of the door frame (1), and the other end of each right reinforcing plate (4) is fixedly connected to the hinge assembly corresponding to the position.

2. The fire door L7-shaped reinforced hinge liner according to claim 1, characterized in that, Each of the hinge assemblies includes a left liner (10) and a right liner (11), and each left liner (10) is installed on the outside of the fire door body (2), and each right liner (11) is installed on the inside of the door frame (1). Each left liner (10) has multiple hinge parts (13) installed on its outside, and each right liner (11) has multiple mounting sleeves (14) fixedly installed on its outside. The multiple mounting sleeves (14) with corresponding positions are rotatably connected to a pivot (15), and each hinge part (13) is fixedly connected to the pivot (15) with corresponding position.

3. The fire door L7-shaped reinforced hinge liner according to claim 2, characterized in that, Each of the left reinforcing plate (3) and the right reinforcing plate (4) includes a fixing plate (7) and a support plate (8). Each support plate (8) is fixedly installed on the outside of the door frame (1) and the fire door body (2). Each fixing plate (7) is fixedly connected to the left lining plate (10) and the right lining plate (11) corresponding to the position. Each of the left lining plate (10), the right lining plate (11) and each fixing plate (7) has a plurality of first mounting holes (9) on its outside. Each of the support plates (8) and the outside of the door frame (1) and the fire door body (2) has a plurality of second mounting holes (12).

4. The fire protection door 7-ply hinge reinforcement gusset of claim 3, wherein, The fire door body (2) has multiple first mounting slots (5) on its outer side, and each left liner (10) is fixedly installed in the corresponding first mounting slot (5). The door frame (1) has multiple second mounting slots (6) on its outer side, and each right liner (11) is fixedly installed in the corresponding second mounting slot (6).

5. The fire protection door 7-ply reinforced hinge butt plate of claim 4, wherein, Each of the fixed plates (7) is connected at right angles to the corresponding support plate (8), and each fixed plate (7) is integrally formed with the corresponding support plate (8).

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