A fireproof device for high-speed rolling shutters in elevated floors

Abstract

This utility model belongs to the technical field of fire prevention devices for elevated floors, specifically relating to a rapid rolling shutter fire prevention device for elevated floors. The device has an opening at the bottom of its inner cavity, with a movable base plate at the opening. The left end of the movable base plate is hinged to the box body, and a wedge-shaped limiting block is fixedly connected to the lower right side. A lever is located on the right side of the box body. A ferrule is fixedly connected to the upper left end of the lever, and a mounting plate is fixedly connected to the lower left end. A wedge-shaped limiting groove that mates with the wedge-shaped limiting block is fixedly connected to the end of the mounting plate furthest from the lever. A compression spring connects the upper left half of the lever to the box body, and the lower half of the lever is rotatably connected to the box body via a lever fulcrum. An electromagnet is fixedly connected to the top of the box body. A fire blanket is placed inside the box body, with one end fixed to the top of the inner cavity and the other end fixed to a counterweight rod. The fire blanket is wound around the counterweight rod and placed on the movable base plate. Upon detecting a fire, the fire blanket is quickly triggered to automatically fall, forming a fire-resistant barrier layer, effectively isolating the fire source and allowing for flexible deployment.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire protection devices for elevated floors, and specifically relates to a fire protection device for a fast rolling shutter in an elevated floor. Background Technology

[0002] A raised floor refers to a floor in a building that is elevated. Specifically, in architectural design, it refers to a space beneath the main structure of a building (such as a residential or office building) that contains only structural columns and some equipment rooms, without external walls or only partially open enclosures.

[0003] The open-air space should ideally be an independent fire compartment, but currently, some residential communities (especially older ones) often connect it directly to stairwells, lobbies, or even residential units for convenience, without installing effective fire doors, fire-resistant roller shutters, or fire-resistant partitions. Open-air spaces also often contain flammable materials such as cardboard and plastic, as well as illegally parked and charged electric vehicles. Once a fire starts, smoke and flames will spread rapidly throughout the building without hindrance, creating a chimney effect and accelerating the vertical spread of the fire, posing a significant safety hazard. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a fast-rolling fireproof device for elevated floors, which addresses the shortcomings of existing technologies. This utility model can achieve early and accurate fire identification and sound and light warning, and can quickly trigger the automatic descent of the fire blanket after detecting a fire to form a fire-resistant barrier layer, effectively isolating the fire source. It is flexible in installation and deployment and is suitable for elevated floors of various residential communities and areas where electric bicycles are concentrated.

[0005] This solution is achieved through the following technical measures: a fireproof device for a fast-rolling shutter in an elevated floor, comprising a box body with an opening at the bottom of the inner cavity of the box body, and a movable base plate at the opening. The left end of the movable base plate is hinged to the box body, and a wedge-shaped limiting block is fixedly connected to the lower right side. A lever is provided on the right side of the box body. A ferrule is fixedly connected to the upper left side of the lever, and a mounting plate is fixedly connected to the lower left side. A wedge-shaped limiting groove that mates with the wedge-shaped limiting block is fixedly connected to the end of the mounting plate away from the lever. A compression spring is connected between the upper left side of the lever and the box body. The lower half of the lever is rotatably connected to the box body through a lever fulcrum. An electromagnet that mates with the ferrule is fixedly connected to the top of the box body. The electromagnet is electrically connected to a fire early warning controller. A fireproof blanket is provided in the inner cavity of the box body. One end of the fireproof blanket is fixedly connected to the top of the inner cavity of the box body, and the other end is fixedly connected to a counterweight rod. The fireproof blanket is wound around the counterweight rod and placed on the movable base plate.

[0006] Preferably, a guide wheel support is fixedly connected to the right side of the box body below the lever fulcrum. A guide wheel is rotatably mounted on the guide wheel support, and a pull rope is wound around the guide wheel. The upper end of the pull rope is fixedly connected to the lever, and the lower end is fixedly connected to a counterweight.

[0007] Preferably, the connection point between the pull rope and the lever is located between the lever fulcrum and the guide wheel support.

[0008] Preferably, a vertical fireproof blanket fixing plate is fixedly connected to the top left side of the inner cavity of the box, and one end of the fireproof blanket is fixedly connected to the vertical fireproof blanket fixing plate by rivets.

[0009] Preferably, the housing is equipped with an audible and visual alarm and a cable socket. The audible and visual alarm and the electromagnet are electrically connected to the cable socket via internal signal lines. The cable socket is electrically connected to the fire early warning controller via a cable.

[0010] Preferably, a stiffening plate is fixedly connected between the mounting plate and the lever.

[0011] Preferably, a connecting plate is fixed to the left side of the box body, and the connecting plate is fixed to the wall to be protected by bolts or hooks.

[0012] The beneficial effects of this utility model are:

[0013] This utility model can achieve accurate early fire identification and sound and light warning, and can quickly trigger the automatic drop of the fire blanket after detecting a fire to form a fire-resistant barrier layer, effectively isolate the fire source, delay the spread of the fire, and buy valuable time for personnel evacuation and fire rescue.

[0014] This utility model has advantages such as rapid response, flexible deployment, and no need to link with the fire protection system. It is suitable for the elevated floors of various residential communities and areas where electric bicycles are centrally parked, and has broad prospects for promotion and application.

[0015] It is evident that this utility model possesses substantial features and represents an advancement compared to existing technologies. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of a specific embodiment of the present utility model.

[0017] Figure 2 This is a side view of a specific embodiment of the present invention.

[0018] Figure 3 for Figure 1 A magnified view of point A in the middle.

[0019] In the diagram, 1-fire blanket, 2-box, 3-electromagnet, 4-iron rod, 5-compression spring, 6-lever, 7-lever fulcrum, 8-guide wheel, 9-guide wheel support, 10-pull rope, 11-counterweight block, 12-movable base plate, 13-hinge, 14-counterweight rod, 15-vertical fire blanket fixing plate, 16-cable socket, 17-connecting plate, 18-internal signal line, 19-audible and visual alarm, 20-stiffening plate, 21-mounting plate, 22-wedge-shaped limiting groove, 23-wedge-shaped limiting block. Detailed Implementation

[0020] To clearly illustrate the technical features of this solution, the following detailed implementation method, in conjunction with its accompanying drawings, will be used to describe the solution.

[0021] A fireproof device for a high-rise building's rapid-rolling shutter includes a housing 2. A connecting plate 17 is fixed to the left side of the housing 2. The connecting plate 17 is fixed to the wall to be protected by bolts or hooks, thus enabling the installation of the fireproof device. The bottom of the inner cavity of the housing 2 is open, and a movable base plate 12 is provided at the opening. The left end of the movable base plate 12 is hinged to the housing 2 via a hinge 13, and a wedge-shaped limiting block 23 is fixed to the lower right side. A lever 6 is provided on the right side of the housing 2. A ferrule 4 is fixed to the upper left side of the lever 6, and a mounting plate 21 is fixed to the lower left side. A stiffening plate 20 is fixed between the mounting plate 21 and the lever 6 to enhance the connection strength of the mounting plate 21, thereby ensuring the limiting stability of the wedge-shaped limiting groove 22 on the wedge-shaped limiting block 23. The end of the mounting plate 21 away from the lever 6 is fixed with a wedge-shaped limiting groove 22 that cooperates with the wedge-shaped limiting block 23. One end of the movable base plate 12 is connected to the box body 2 via a hinge 13, and the other end of the movable base plate 12 is closed by the cooperation of a wedge-shaped limiting block 23 and a wedge-shaped limiting groove 22. When the movable base plate 12 is in the closed state, the fire blanket 1 is placed on the movable base plate 12 in a roll shape.

[0022] A compression spring 5 is connected between the upper left half of the lever 6 and the box 2. The compression spring 5 prevents the lever 6 from opening due to accidental contact. The lower half of the lever 6 is rotatably connected to the box 2 via a lever fulcrum 7. An electromagnet 3 that cooperates with the ferrite core 4 is fixedly connected to the top of the box 2. The electromagnet 3 is electrically connected to the fire alarm controller.

[0023] The inner cavity of the box body 2 is equipped with a fireproof blanket 1. One end of the fireproof blanket 1 is fixedly connected to the top of the inner cavity of the box body 2, and the other end is fixedly connected to a counterweight rod 14. After the fireproof blanket 1 is rolled up on the counterweight rod 14, it is placed on the movable base plate 12. A vertical fireproof blanket fixing plate 15 is fixedly connected to the top left side of the inner cavity of the box body 2. One end of the fireproof blanket 1 is fixedly connected to the vertical fireproof blanket fixing plate 15 by rivets. This structural form can facilitate the smooth and rapid unfolding of the fireproof blanket 1.

[0024] A guide wheel support 9 is fixedly connected to the right side of the box 2, below the lever fulcrum 7. A guide wheel 8 is rotatably mounted on the guide wheel support 9, and a pull rope 10 is wound around the guide wheel 8. The upper end of the pull rope 10 is fixedly connected to the lever 6, and the lower end is fixedly connected to a counterweight 11. The connection point between the pull rope 10 and the lever 6 is located between the lever fulcrum 7 and the guide wheel support 9. This structure serves as a manual triggering structure and as a backup structure for the electromagnet 3, preventing the fire blanket 1 from failing to deploy when the electromagnet 3 malfunctions.

[0025] The housing 2 is equipped with an audible and visual alarm 19 and a cable connector 16. The audible and visual alarm 19 and the electromagnet 3 are electrically connected to the cable connector 16 via an internal signal line 18. The cable connector 16 is electrically connected to the fire early warning controller via a cable. Both the audible and visual alarm 19 and the electromagnet 3 are electrically connected to the fire early warning controller via the internal signal line 18 and the cable connector 16. The fire early warning controller controls the operation of the audible and visual alarm 19 and the electromagnet 3 based on the fire signal fed back by the fire detector.

[0026] In the event of a fire, the movable base plate 12 can be opened both electrically and manually.

[0027] Electric opening of movable base plate 12: After the fire detector in the building detects a fire, it sends a signal to the fire warning controller. The fire warning controller controls the electromagnet 3 and the audible and visual alarm 19 to work. The electromagnet 3 is attracted to the iron 4 on the lever 6, which drives the lever 6 to overcome the elastic force of the compression spring 5 and rotate around the lever fulcrum 7. This causes the wedge-shaped limiting groove 22 to disengage from the wedge-shaped limiting block 23, and the movable base plate 12 to open. Under its own weight and the weight of the counterweight rod 14, the fire blanket 1 falls freely and unfolds to form a fire barrier.

[0028] Manually open the movable base plate 12: After the fire detector in the building detects a fire, it sends a signal to the fire early warning controller, which then controls the electromagnet 3 and the audible and visual alarm 19 to work. If personnel arrive at the scene and find that the electromagnet 3 is not working properly, they can manually pull the pull rope 10 through the counterweight 11. The pull rope 10 drives the lever 6 to overcome the elastic force of the compression spring 5 and rotate around the lever fulcrum 7, causing the wedge-shaped limiting groove 22 to disengage from the wedge-shaped limiting block 23. The movable base plate 12 opens, allowing the fire blanket 1 to fall freely and unfold under its own weight and the weight of the counterweight rod 14, forming a fire barrier. After the fire blanket 1 unfolds, the counterweight 11 can be released.

[0029] Technical features not described in this utility model can be implemented using existing technology and will not be elaborated here. This utility model is not limited to the specific embodiments described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this utility model should also fall within the protection scope of this utility model.

Claims

1. A fireproof device for a high-speed rolling shutter in an elevated floor, comprising a housing, characterized in that: The box has an opening at the bottom of its inner cavity, with a movable base plate at the opening. The left end of the movable base plate is hinged to the box, and a wedge-shaped limiting block is fixed to the lower right side. A lever is located on the right side of the box. A ferrule is fixed to the upper left end of the lever, and a mounting plate is fixed to the lower left end. A wedge-shaped limiting groove that mates with the wedge-shaped limiting block is fixed to the end of the mounting plate furthest from the lever. A compression spring is connected between the upper left half of the lever and the box. The lower half of the lever is rotatably connected to the box via a lever fulcrum. An electromagnet that mates with the ferrule is fixed to the top of the box and is electrically connected to a fire alarm controller. A fire blanket is installed inside the box. One end of the fire blanket is fixed to the top of the box, and the other end is fixed to a counterweight rod. The fire blanket is wound around the counterweight rod and placed on the movable base plate.

2. The overhead layer quick roller shutter fireproof device according to claim 1, characterized in that: A guide wheel support is fixedly connected to the right side of the box body below the lever fulcrum. A guide wheel is rotatably mounted on the guide wheel support. A pull rope is wound around the guide wheel. The upper end of the pull rope is fixedly connected to the lever, and the lower end is fixedly connected to a counterweight.

3. The overhead layer quick roller shutter fireproof device according to claim 2, characterized in that: The connection point between the pull rope and the lever is located between the lever fulcrum and the guide wheel support.

4. The overhead layer quick roller shutter fireproof device according to claim 3, characterized in that: A vertical fireproof blanket fixing plate is fixedly connected to the top left side of the inner cavity of the box, and one end of the fireproof blanket is fixedly connected to the vertical fireproof blanket fixing plate by rivets.

5. The overhead layer quick roller shutter fireproof device according to claim 4, characterized in that: The box is equipped with an audible and visual alarm and a cable socket. The audible and visual alarm and the electromagnet are electrically connected to the cable socket via internal signal lines. The cable socket is electrically connected to the fire early warning controller via a cable.

6. The overhead layer quick roller shutter fireproof device according to claim 5, characterized in that: A stiffening plate is fixedly connected between the mounting plate and the lever.

7. The overhead layer quick roller shutter fireproof device according to claim 6, characterized in that: A connecting plate is fixed to the left side of the box, and the connecting plate is fixed to the wall to be protected by bolts or hooks.

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