Fireproof door of window opening and closing mechanism

By designing a viewing window opening mechanism, the fireproof glass can be slidable and the protective net can be removed, solving the problem of fire door viewing windows being unable to be opened. This improves safety and rescue efficiency during fires and reduces the frequency and cost of replacing fireproof glass.

CN223647695UActive Publication Date: 2025-12-09GUANGDONG FEIFENG VENTILATION CO LTD
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Patent Information

Application Number
CN202423092269.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-12-09
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

The windows of existing fire doors cannot be opened, which prevents smoke from escaping during a fire, increasing the danger of evacuation and the risk of suffocation.

Method used

A window switch mechanism was designed. By rotating the handle, the turntable, rotating rod and gear are driven to engage the rack and pinion to slide the fireproof glass, thereby lowering the fireproof glass and expelling smoke. At the same time, when the fireproof glass is lowered, the support plate and connecting rod are driven to remove the protective net, which facilitates rescue.

Benefits of technology

It effectively removes internal smoke, reduces the risk of suffocation, facilitates fire rescue, reduces the frequency of fireproof glass replacement, and lowers costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fireproof doors, and discloses a fireproof door of a window opening and closing mechanism, which comprises a fireproof door, a rotating rod is rotatably connected in the fireproof door, the outer end of the rotating rod is fixedly connected with a turntable, one end of the turntable far away from the rotating rod is fixedly connected with a handle, and a chute is arranged in the fireproof door. When a fire disaster occurs, if the door is stuck, the rotating disc is rotated through the handle, the rotating disc drives the rotating rod to rotate, the rotating rod is fixedly connected with the gear, when the gear rotates, the gear is meshed with the rack, the rack is fixed to the fireproof glass, and therefore the fireproof glass is driven to move; and meanwhile, the fireproof glass is fixed to the sliding block, the sliding block slides through the sliding groove, and therefore it is guaranteed that the fireproof glass slides along the designated guide rail, the fireproof glass descends, internal smoke is discharged through an opening of the opened fireproof glass, it is prevented that the internal smoke is accumulated, personnel suffocation is caused, and meanwhile rapid rescue of firefighters is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of fire door technology, and in particular to a fire door with a window opening and closing mechanism. Background Technology

[0002] Fire doors are doors specifically designed to prevent the spread of fire. They are typically made of fire-resistant materials and provide fire protection for a certain period of time during a fire. Fire doors help isolate fire-affected areas by blocking the spread of fire, smoke, and toxic gases, ensuring the safety of evacuation and rescue operations. Fire doors are usually equipped with sealing strips, high-temperature resistant glass windows, and reliable locking mechanisms, enabling them to maintain their structural integrity during a fire.

[0003] The windows of existing fire doors cannot be opened, which prevents smoke from escaping during a fire. This causes smoke to stagnate in the enclosed area, exacerbating the accumulation of toxic gases and making evacuation more dangerous. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a fire door with a window opening and closing mechanism.

[0005] This utility model is achieved using the following technical solution: a fire door with a window switch mechanism, comprising a fire door, a rotating rod rotatably connected inside the fire door, a turntable fixedly connected to the outer end of the rotating rod, a handle fixedly connected to the end of the turntable away from the rotating rod, a sliding groove opened inside the fire door, a slider slidably connected to the outer wall of the sliding groove, fireproof glass fixedly connected to the outer wall of the slider, a rack fixedly connected to the end of the fireproof glass away from the slider, a gear meshing with the rack, and the gear fixedly connected to the outer wall of the rotating rod.

[0006] With the above technical solution, in the event of a fire, if the door is jammed, the handle can be turned to rotate the turntable, which in turn drives the rotating rod to rotate. The rotating rod is fixedly connected to a gear. When the gear rotates, it meshes with a rack, which is fixed to the fireproof glass, thereby moving the fireproof glass. At the same time, the fireproof glass is fixed to a slider, which slides along a groove, ensuring that the fireproof glass slides along a designated guide rail. This lowers the fireproof glass, allowing the smoke inside to escape through the open opening, preventing smoke accumulation and suffocation, and also facilitating rapid rescue by firefighters.

[0007] As a further improvement to the above solution, two turntables are provided, symmetrically arranged around the center of the fire door, and two sliders are provided, symmetrically arranged around the center of the fireproof glass.

[0008] As a further improvement to the above solution, a support plate is fixedly connected to the bottom of the fireproof glass, and a sliding rod is slidably connected inside the support plate. There are two sliding rods, which are symmetrically arranged around the center of the fireproof door.

[0009] As a further improvement to the above solution, a spring is provided on the outer wall of the end of the slide rod away from the support plate, and a fixing rod is fixedly connected to the inner wall of the fire door, with a second spring provided on the outer wall of the fixing rod.

[0010] As a further improvement to the above solution, four fixing rods are provided, which are symmetrically arranged around the center of the fire door, and four springs are provided, which are symmetrically arranged around the center of the fire door.

[0011] As a further improvement to the above solution, a support plate is slidably connected to the outer wall of the fixed rod, the support plate is slidably connected to the outer wall of the sliding rod, a connecting rod is fixedly connected to the top of the support plate, the connecting rod is slidably connected inside the fire door, and four connecting rods are provided, which are symmetrically arranged around the center of the fire door.

[0012] With the above technical solution, when the fireproof glass descends, it drives the support plate to move. The support plate slides along the outer wall of the sliding rod. When the support plate contacts support plate one, springs two are compressed respectively. Support plate one slides on the outer wall of the fixed rod, and at the same time, support plate one is fixed to the connecting rod, allowing the connecting rod to slide inside the fire door. The connecting rod contacts the inside of the protective net. When the connecting rod descends, it drives the protective net to descend, and a locking block is fixed at the top of the protective net. When the locking block disengages from the slot, the protective net can be removed, facilitating personnel rescue.

[0013] As a further improvement to the above solution, a protective net is provided at the end of the connecting rod away from the support plate, a locking block is fixedly connected to the top of the protective net, and a locking groove is provided at the top of the inner wall of the fire door, with the locking groove contacting the outer wall of the locking block.

[0014] Through the above technical solutions, when no fire occurs, the protective net can provide a certain degree of protection for the fireproof glass, reducing the frequency of fireproof glass replacement and thus reducing costs.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention addresses the issue of fire hazards. If a door is jammed during a fire, a handle is turned to rotate a turntable, which in turn rotates a rotating rod. The rotating rod is fixedly connected to a gear. When the gear rotates, it meshes with a rack, which is fixed to the fireproof glass. This causes the fireproof glass to move. Simultaneously, the fireproof glass is fixed to a slider, which slides along a designated guide rail, lowering the fireproof glass to allow smoke to escape through the open opening. This prevents smoke buildup and suffocation, and also facilitates rapid rescue by firefighters.

[0017] This invention utilizes the fireproof glass to lower, causing the support plate to move. The support plate slides along the outer wall of the sliding rod. When the support plate contacts the first support plate, the springs are compressed. The first support plate slides on the outer wall of the fixed rod, while simultaneously being fixed to the connecting rod, allowing the connecting rod to slide inside the fire door. The connecting rod contacts the inside of the protective net. When the connecting rod lowers, it causes the protective net to lower as well. A locking block is fixed at the top of the protective net. When the locking block disengages from the slot, the protective net can be removed, facilitating timely rescue by rescue personnel and effectively reducing casualties. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the fireproof glass structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the protective net structure of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A in the middle;

[0022] Figure 5 This utility model Figure 3 Enlarged structural diagram of section B.

[0023] Explanation of key symbols:

[0024] 1. Fire door; 2. Rotating rod; 3. Turntable; 4. Handle; 5. Slide groove; 6. Sliding block; 7. Fireproof glass; 8. Rack; 9. Gear; 10. Support plate; 11. Slide rod; 12. Spring; 13. Fixing rod; 14. Spring II; 15. Support plate I; 16. Connecting rod; 17. Protective net; 18. Locking block; 19. Locking groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-5 This embodiment discloses a fire door with a window switch mechanism, including a fire door 1. A rotating rod 2 is rotatably connected inside the fire door 1. A turntable 3 is fixedly connected to the outer end of the rotating rod 2. A handle 4 is fixedly connected to the end of the turntable 3 away from the rotating rod 2. A sliding groove 5 is opened inside the fire door 1. A slider 6 is slidably connected to the outer wall of the sliding groove 5. A fireproof glass 7 is fixedly connected to the outer wall of the slider 6. A rack 8 is fixedly connected to the end of the fireproof glass 7 away from the slider 6. A gear 9 is meshed with the rack 8. The gear 9 is fixedly connected to the outer wall of the rotating rod 2.

[0028] There are two turntables 3, which are symmetrically arranged around the center of the fire door 1. There are two sliders 6, which are symmetrically arranged around the center of the fireproof glass 7.

[0029] A support plate 10 is fixedly connected to the bottom of the fireproof glass 7. A sliding rod 11 is slidably connected inside the support plate 10. There are two sliding rods 11, which are symmetrically arranged around the center of the fireproof door 1.

[0030] A spring 12 is installed on the outer wall of the end of the slide rod 11 away from the support plate 10. A fixing rod 13 is fixed to the inner wall of the fire door 1, and a spring 14 is installed on the outer wall of the fixing rod 13.

[0031] There are four fixing rods 13, which are symmetrically arranged around the center of the fire door 1. There are also four springs 14, which are symmetrically arranged around the center of the fire door 1.

[0032] A support plate 15 is slidably connected to the outer wall of the fixed rod 13. The support plate 15 is slidably connected to the outer wall of the slide rod 11. A connecting rod 16 is fixedly connected to the top of the support plate 15. The connecting rod 16 is slidably connected inside the fire door 1. There are four connecting rods 16, which are symmetrically arranged around the center of the fire door 1.

[0033] A protective net 17 is provided at the end of the connecting rod 16 away from the support plate 15. A locking block 18 is fixedly connected to the top of the protective net 17. A slot 19 is provided at the top of the inner wall of the fire door 1. The slot 19 is provided in contact with the outer wall of the locking block 18.

[0034] The implementation principle of a fire door with a window switch mechanism in this embodiment is as follows: When a fire occurs and the door is jammed, the handle 4 rotates the turntable 3, which in turn drives the rotating rod 2 to rotate. The rotating rod 2 is fixedly connected to the gear 9. When the gear 9 rotates, it meshes with the rack 8, which is fixed to the fireproof glass 7, thereby driving the fireproof glass 7 to move. At the same time, the fireproof glass 7 is fixed to the slider 6, which slides along the slide groove 5, ensuring that the fireproof glass 7 slides along the designated guide rail, thereby lowering the fireproof glass 7 and allowing the internal smoke to be discharged through the open opening of the fireproof glass 7, preventing the internal smoke from accumulating and causing suffocation. It also facilitates rapid rescue by firefighters. When the fireproof glass 7 lowers, it drives the support plate 10 to move. The support plate 10 slides along the outer wall of the slide rod 11. When the support plate 10 contacts the first support plate 15, the springs 12 and 14 are compressed respectively. The first support plate 15 slides on the outer wall of the fixed rod 13, and at the same time, the first support plate 15 is fixed to the connecting rod 16, so that the connecting rod 16 slides inside the fire door 1. The connecting rod 16 is in contact with the inside of the protective net 17. When the connecting rod 16 descends, it drives the protective net 17 to descend. The locking block 18 is fixed at the top of the protective net 17. When the locking block 18 disengages from the locking slot 19, the protective net 17 can be removed, which facilitates timely rescue by rescue personnel and effectively reduces casualties. At the same time, when no fire occurs, the protective net 17 can provide a certain degree of protection for the fireproof glass 7, reducing the frequency of replacement of the fireproof glass 7, thereby reducing costs.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A fire door with a window opening and closing mechanism, characterized in that, The fire door (1) includes a rotating rod (2) rotatably connected inside the fire door (1), a turntable (3) fixedly connected to the outer end of the rotating rod (2), a handle (4) fixedly connected to the end of the turntable (3) away from the rotating rod (2), a sliding groove (5) is provided inside the fire door (1), a slider (6) is slidably connected to the outer wall of the sliding groove (5), fireproof glass (7) is fixedly connected to the outer wall of the slider (6), a rack (8) is fixedly connected to the end of the fireproof glass (7) away from the slider (6), a gear (9) is meshed with the rack (8), and the gear (9) is fixedly connected to the outer wall of the rotating rod (2).

2. The fire door with a window opening and closing mechanism as described in claim 1, characterized in that: There are two turntables (3), which are symmetrically arranged around the fire door (1). There are two sliders (6), which are symmetrically arranged around the fireproof glass (7).

3. A fire door with a window opening and closing mechanism as described in claim 2, characterized in that: The fireproof glass (7) is fixedly connected to a support plate (10) at the bottom. The support plate (10) is slidably connected to a slide rod (11). There are two slide rods (11), which are symmetrically arranged around the center of the fire door (1).

4. A fire door with a window opening and closing mechanism as described in claim 3, characterized in that: A spring (12) is provided on the outer wall of the sliding rod (11) away from the support plate (10). A fixing rod (13) is fixed to the inner wall of the fire door (1). A spring (14) is provided on the outer wall of the fixing rod (13).

5. A fire door with a window opening and closing mechanism as described in claim 4, characterized in that: Four fixing rods (13) are provided, and the four fixing rods (13) are symmetrically arranged around the center of the fire door (1). Four springs (14) are provided, and the four springs (14) are symmetrically arranged around the center of the fire door (1).

6. A fire door with a window opening and closing mechanism as described in claim 5, characterized in that: The outer wall of the fixed rod (13) is slidably connected to a support plate (15), the support plate (15) is slidably connected to the outer wall of the slide rod (11), the top of the support plate (15) is fixedly connected to a connecting rod (16), the connecting rod (16) is slidably connected inside the fire door (1), and there are four connecting rods (16), which are symmetrically arranged around the center of the fire door (1).

7. A fire door with a window opening and closing mechanism as described in claim 6, characterized in that: The end of the connecting rod (16) away from the support plate (15) is connected to a protective net (17). The top of the protective net (17) is fixedly connected to a card block (18). The top of the inner wall of the fire door (1) is provided with a card groove (19). The card groove (19) is connected to the outer wall of the card block (18).