Fireproof door with anti-impact function

Abstract

The utility model relates to the technical field of fireproof door, especially a fireproof door with anti -impact function, and it effectively protects the observation window, avoids the crowd to cause the mobile damage to the observation window, prevents the impact force from causing the damage to the observation window, avoids the observation window to crack seriously or to appear the breakage, improves the fireproof effect of fireproof door, improves the practicality of device, the outer side wall of fireproof door is fixed and installed with two fixed strips in longitudinal symmetry, the opposite surface of each fixed strip is all set up with the sliding slot, the sliding slot is slidably installed with the protection board, the top area of the outer side wall of fireproof door is rotatably installed with the rotating shaft, the bottom of rotating shaft is fixedly installed with the rotating rod, the one end of rotating rod near fireproof door is fixedly installed with the limit rod, the outer side wall of protection board is set up with the guide slot, and the guide slot is rotatably connected with the limit rod.

Description

Technical Field

[0001] This utility model relates to the technical field of fire doors, specifically a fire door with impact resistance function. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and heat insulation within a certain period of time. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire compartments, evacuation stairwells, vertical shafts, etc. They are specifically used to isolate fire sources in buildings and play a huge role in fire protection. In the event of a fire, people can use fire doors to obtain an escape opportunity.

[0003] For example, Chinese Patent Publication No. CN211038412U discloses a high flame-retardant steel fire door, including a fire door with a slot on one side, a sealing strip installed on one side of the lower end of the slot, a pull strap installed on one side of the slot, an adjusting sleeve installed on one side of the pull strap, a support strip installed on one side of the adjusting sleeve, a threaded sleeve installed inside the adjusting sleeve, a threaded groove provided inside the threaded sleeve, a support column installed inside the threaded groove, a spring installed on the outer surface of the upper end of the support column, a connecting block installed at one end of the spring, a shock-absorbing column installed on one side of the connecting block, a telescopic column installed at one end of the shock-absorbing column, and a shock-absorbing shell installed on the outer surface of the telescopic column. This utility model is flame-retardant, easy to install, and through the cooperation of the telescopic column and the shock-absorbing column, the device can absorb shocks, prevent impacts, and has strong impact resistance.

[0004] However, in actual use, the observation window in the top area of ​​the device does not provide adequate protection. In the event of a fire, people may instinctively and randomly bump into the device, making the observation window a relatively vulnerable part. Consequently, when the impact force is large, the observation window is prone to cracking or breaking, thus affecting the device's fire-resistant performance. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an effective protection mechanism for the observation window, preventing damage from movement by people, preventing impact forces from damaging the observation window, preventing cracks or breaks in the observation window, improving the fire resistance of the fire door, and enhancing its practicality. This is a fire door with impact resistance function.

[0006] This utility model discloses a fire door with impact resistance, comprising a fire door, a door frame, and an observation window. One end of the fire door is rotatably connected to the inner wall of the door frame via a hinge. A through hole is provided in the top area of ​​the fire door, and an observation window is fixedly installed in the middle area of ​​the through hole. Two fixing strips are symmetrically fixedly installed longitudinally on the outer wall of the fire door. Each fixing strip has a sliding groove on its opposite side, and a protective plate is slidably installed on the sliding groove. A rotating shaft is rotatably installed in the top area of ​​the outer wall of the fire door, and a rotating rod is fixedly installed at the bottom end of the rotating shaft. A limit rod is fixedly installed at the end of the rotating rod near the fire door. A guide groove is provided on the outer wall of the protective plate to guide... The fire door, featuring an impact-resistant design, is rotatably connected to a guide rail. Observation is conducted through the viewing window. In the event of a fire, rotating the shaft simultaneously causes the guide rail to slide along the guide rail. Once the guide rail disengages, the protective plate, under its own weight, falls freely within the guide rail's limit. This protective plate then shields the front of the viewing window, effectively protecting it from movement and impact damage. This prevents cracks or breaks, enhancing the fire door's fire resistance and practicality.

[0007] Preferably, a sealing plate is fixedly installed on the outer wall of the fire door, the sealing plate is in contact with the outer wall of the door frame, and sealing cotton is fixedly installed on the outer wall of the sealing plate. The sealing cotton is located in the gap between the fire door and the door frame. By installing the sealing plate and sealing cotton, it is convenient to fill the gap between the fire door and the door frame, thereby improving the fireproof and smokeproof effect of the fire door.

[0008] Preferably, a slot is provided on the inner side wall of the guide groove, and the slot fits and engages with the limiting rod. By providing the slot, it is convenient to limit the operation of the limiting rod when it is stationary.

[0009] Preferably, anti-collision blocks are fixedly installed on the outer side wall of the protective plate, which facilitates the protection of the protective plate.

[0010] Preferably, the bottom ends of the two fixing strips are fixedly connected by a base plate, and the bottom end of the protective plate for the descent operation is supported and limited by the base plate.

[0011] Preferably, a sealing block is fixedly installed at the bottom of the fire door. By installing the sealing block, the gap between the fire door and the ground is reduced, thereby improving the fireproof and smoke-proof effect of the fire door.

[0012] Preferably, reinforcing ribs are fixedly installed on the inner wall of the fire door, which improves the impact resistance of the fire door.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This fire door with impact resistance allows for observation through the observation window. When a fire occurs, the rotating shaft, along with the rotating rod, drives the limiting rod to slide on the guide groove. After the limiting rod disengages from the guide groove, the protective plate, under its own weight, falls freely within the limiting groove. The protective plate then shields the front of the observation window, effectively protecting it from damage caused by movement by people, preventing impact damage, and avoiding cracks or breaks. This improves the fire resistance and practicality of the fire door. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0017] Figure 4 This utility model Figure 2 A magnified structural diagram of section B.

[0018] The following are labels in the attached diagram: 1. Fire door; 2. Door frame; 3. Through hole; 4. Observation window; 5. Fixing strip; 6. Slide groove; 7. Protective plate; 8. Rotating shaft; 9. Rotating rod; 10. Limiting rod; 11. Guide groove; 12. Sealing plate; 13. Sealing cotton; 14. Card slot; 15. Anti-collision block; 16. Base plate; 17. Sealing block; 18. Reinforcing rib. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] This utility model discloses a fire door with impact resistance, comprising a fire door 1, a door frame 2, and an observation window 4. One end of the fire door 1 is rotatably connected to the inner wall of the door frame 2 via a hinge. A through hole 3 is provided in the top area of ​​the fire door 1, and an observation window 4 is fixedly installed in the middle area of ​​the through hole 3. Two fixing strips 5 are symmetrically fixedly installed longitudinally on the outer wall of the fire door 1. Each fixing strip 5 has a sliding groove 6 on its opposite side, and a protective plate 7 is slidably installed on the sliding groove 6. A rotating shaft 8 is rotatably installed in the top area of ​​the outer wall of the fire door 1, and a rotating rod 9 is fixedly installed at the bottom end of the rotating shaft 8. A limit rod 10 is fixedly installed at the end of the rotating rod 9 near the fire door 1. The protective plate 7... A guide groove 11 is provided on the outer side wall, and the guide groove 11 is rotatably connected to the limiting rod 10. A sealing plate 12 is fixedly installed on the outer side wall of the fire door 1, and the sealing plate 12 is attached to the outer side wall of the door frame 2. A sealing cotton 13 is fixedly installed on the outer side wall of the sealing plate 12, and the sealing cotton 13 is located in the gap between the fire door 1 and the door frame 2. A slot 14 is provided on the inner side wall of the guide groove 11, and the slot 14 is attached to the limiting rod 10. An anti-collision block 15 is fixedly installed on the outer side wall of the protective plate 7. The bottom ends of the two fixing strips 5 are fixedly connected through the base plate 16. A sealing block 17 is fixedly installed at the bottom end of the fire door 1. A reinforcing rib 18 is fixedly installed on the inner side wall of the fire door 1.

[0021] like Figures 1 to 4 As shown, this utility model discloses a fire door with impact resistance. During operation, observation is conducted through the observation window 4. When a fire occurs, the protective plate 7 is moved upwards, causing the limiting rod 10 to disengage from the slot 14. Simultaneously, the rotating shaft 8 rotates, and the rotating rod 9 drives the limiting rod 10 to slide on the guide groove 11. After the limiting rod 10 disengages from the guide groove 11, the protective plate 7, under its own weight, falls freely within the limiting range of the sliding groove 6. The base plate 16 supports and limits the protective plate 7. 7 is placed at the front of the observation window 4. By installing anti-collision blocks 15, it is convenient to protect the protective plate 7, thereby effectively protecting the observation window 4 and preventing people from moving and damaging the observation window 4. By installing sealing plates 12 and sealing cotton 13, it is convenient to fill the gap between the fire door 1 and the door frame 2, which improves the fireproof and smoke-proof effect of the fire door 1. By installing sealing blocks 17, the gap between the fire door 1 and the ground is reduced, which improves the fireproof and smoke-proof effect of the fire door 1. By installing reinforcing ribs 18, the anti-collision effect of the fire door 1 is improved.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fire door with impact resistance, comprising a fire door (1), a door frame (2), and an observation window (4), wherein one end of the fire door (1) is rotatably connected to the inner wall of the door frame (2) via a hinge, a through hole (3) is provided in the top area of ​​the fire door (1), and an observation window (4) is fixedly installed in the middle area of ​​the through hole (3), characterized in that: Two fixing strips (5) are fixedly fixed longitudinally and symmetrically on the outer side wall of the fire door (1). Each fixing strip (5) has a sliding groove (6) on its opposite side. A protective plate (7) is slidably installed on the sliding groove (6). A rotating shaft (8) is rotatably installed on the top area of ​​the outer side wall of the fire door (1). A rotating rod (9) is fixedly installed at the bottom end of the rotating shaft (8). A limit rod (10) is fixedly installed at one end of the rotating rod (9) near the fire door (1). A guide groove (11) is opened on the outer side wall of the protective plate (7). The guide groove (11) is rotatably connected to the limit rod (10).

2. A fire door with impact-resistant function according to claim 1, characterized in that: A sealing plate (12) is fixedly installed on the outer wall of the fire door (1). The sealing plate (12) is attached to the outer wall of the door frame (2). A sealing cotton (13) is fixedly installed on the outer wall of the sealing plate (12). The sealing cotton (13) is located in the gap between the fire door (1) and the door frame (2).

3. A fire door with impact-resistant function according to claim 1, characterized in that: The inner wall of the guide groove (11) is provided with a slot (14), which is fitted and engaged with the limiting rod (10).

4. A fire door with impact-resistant function according to claim 1, characterized in that: A crash block (15) is fixedly installed on the outer wall of the protective plate (7).

5. A fire door with impact-resistant function according to claim 1, characterized in that: The bottom ends of the two fixing strips (5) are fixedly connected by the base plate (16).

6. A fire door with impact-resistant function according to claim 1, characterized in that: A sealing block (17) is fixedly installed at the bottom of the fire door (1).

7. A fire door with impact-resistant function according to claim 1, characterized in that: The fire door (1) has a reinforcing rib (18) fixedly installed on its inner wall.

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