A roller blind smoke screen

Abstract

The utility model discloses a kind of roller shutter type smoke-retarding vertical wall, it is related to smoke-retarding vertical wall technical field.Roller shutter vertical wall is completely fallen, it will form gap between its bottom and ground, high-temperature flue gas can be through the gap to adjacent smoke division penetration.The utility model includes guide rail and sealing mechanism, sealing mechanism is arranged in the inboard of guide rail, sealing mechanism includes the sealing seat of being arranged in the inboard below of guide rail, and the bottom end inside this sealing seat is fixedly connected with magnetic block.The utility model is provided with guide rail, sealing mechanism, sealing seat and magnetic block, by sealing seat is installed to the just below of guide rail, when counterweight block falls in guide rail interior, the magnetic connection of using magnetic block to counterweight block makes counterweight block accurate adhesion magnetic block top surface, realize quick fixing, again through the work of sealing pad, it is filled with sealing seat and the gap of counterweight block by thermal expansion, avoid flue gas from device bottom to be penetrated as far as possible, to improve the smoke-retarding effect of device.

Description

Technical Field

[0001] This utility model relates to the field of smoke curtain technology, specifically a roller shutter type smoke curtain. Background Technology

[0002] Smoke curtains are smoke control devices that automatically descend upon the presence of heat detectors, smoke detectors, or commands from the fire control center during a fire. They are primarily used in large-space buildings such as high-rise and super high-rise shopping malls, office buildings, and warehouses. The vertical barrier they form after descending effectively blocks the lateral flow of smoke under the building's ceiling, allowing the smoke exhaust system within the smoke control zone to expel smoke more efficiently. This buys valuable time for evacuation and plays a crucial role in reducing fire casualties and property losses. Smoke curtains can be classified into several types according to their structure, including roller shutter type, panel type, and wired glass type. Among these, roller shutter type smoke curtains are the most widely used in modern buildings due to their small storage volume and wide adaptability.

[0003] Regarding the aforementioned technologies, the applicant believes that when a roller shutter smoke curtain is in operation, the motor drives the roller to rotate, causing the curtain to fall rapidly and form a vertical smoke barrier. This effectively blocks the lateral flow of smoke under the building ceiling, buying crucial time for personnel evacuation and firefighting rescue. However, after the roller shutter is fully lowered, gaps can easily form between the bottom of the curtain and the ground due to ground flatness errors. Under the high temperature of a fire, high-temperature smoke can penetrate into adjacent smoke control zones through these gaps, reducing visibility in adjacent areas and ultimately affecting the overall smoke control effect, increasing the risk of personnel evacuation. Utility Model Content

[0004] The purpose of this utility model is to provide a roller shutter type smoke curtain to solve the problem mentioned in the background art that after the roller shutter is fully lowered, due to the influence of ground flatness error, a gap will be formed between its bottom and the ground, and high-temperature smoke can penetrate into the adjacent smoke prevention zone through the gap.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roller shutter type smoke curtain, including a guide rail and a sealing mechanism. The sealing mechanism is disposed on the inner side of the guide rail and includes a sealing seat disposed below the inner side of the guide rail. A magnetic block is fixedly connected to the bottom of the sealing seat. Sealing gaskets are provided on both sides inside the magnetic block. A counterweight is slidably disposed inside the guide rail, and the counterweight is magnetically connected to the magnetic block.

[0006] By adopting the above technical solution, when the counterweight falls to the designed position in the guide rail along with the main body of the smoke curtain, the magnetic block and the counterweight generate a magnetic attraction, so that the counterweight accurately fits the top surface of the magnetic block and achieves rapid fixation; while the sealing gasket expands rapidly when heated, which can fill the assembly gap between the sealing seat and the counterweight to form a complete seal, effectively preventing high-temperature flue gas from penetrating from the bottom of the device, improving the smoke blocking efficiency of the device, and significantly improving the overall smoke blocking effect of the device.

[0007] Preferably, a device box is provided at the top of the guide rail, and the device box is connected to the guide rail by fixing bolts.

[0008] By adopting the above technical solutions, the stability of the equipment box during operation can be improved.

[0009] Preferably, a drive motor is provided at one end of the equipment box, and a roller shutter shaft is provided at the output end of the drive motor.

[0010] By adopting the above technical solution, the drive motor is started by a control switch, and the drive motor can drive the roller shutter shaft to rotate when it is working.

[0011] Preferably, the guide rails are provided in two sets, which are symmetrically distributed about the counterweight.

[0012] By adopting the above technical solution, the counterweight can be easily limited, thus improving the stability of the counterweight when it moves up and down.

[0013] Preferably, each end of the sealing seat is provided with a mounting block, and the mounting block and the sealing seat form a welded integrated structure.

[0014] By adopting the above technical solution, the stability of the mounting block during operation can be improved.

[0015] Preferably, the mounting block has mounting holes inside.

[0016] By adopting the above technical solution, the sealing seat can be easily fixed and installed directly below the guide rail by inserting the fixing bolt through the mounting hole into the interior of the guide rail.

[0017] Preferably, the sealing gasket is made of an intumescent fire-resistant sealing strip, and two sets of the sealing gasket are provided.

[0018] By adopting the above technical solution, the sealing gasket expands rapidly when heated, which can fill the assembly gap between the sealing seat and the counterweight, forming a complete seal and effectively preventing high-temperature flue gas from seeping through from the bottom of the device.

[0019] Preferably, a smoke-blocking curtain body is provided on the outside of the roller shutter shaft, and the bottom end of the smoke-blocking curtain body is connected to the top end of the counterweight block.

[0020] By adopting the above technical solution, the main body of the smoke curtain can be lowered along the guide rail, thereby improving the stability of the main body of the smoke curtain when it falls.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] The device is equipped with a guide rail, a sealing mechanism, a sealing seat, and a magnetic block. The sealing seat is installed directly below the guide rail. After the counterweight falls inside the guide rail, the magnetic block magnetically connects the counterweight, allowing the counterweight to precisely fit against the top surface of the magnetic block for rapid positioning. When a fire occurs, the sealing gasket expands under the action of high-temperature smoke, completely filling the assembly gap between the sealing seat and the counterweight, forming a flexible sealing barrier to minimize the spread of smoke from the bottom of the device, thereby improving the smoke-blocking effect of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall front view of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the sealing seat of this utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0027] In the diagram: 1. Equipment box; 2. Guide rail; 3. Sealing mechanism; 301. Sealing seat; 302. Mounting block; 303. Mounting hole; 304. Magnetic block; 305. Sealing gasket; 4. Roller shutter shaft; 5. Smoke curtain body; 6. Counterweight; 7. Drive motor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] Please see Figures 1 to 4This embodiment provides a technical solution: a roller shutter type smoke curtain, including a guide rail 2 and a sealing mechanism 3. The sealing mechanism 3 is located inside the guide rail 2 and includes a sealing seat 301 located below the inner side of the guide rail 2. A magnetic block 304 is fixedly connected to the bottom of the sealing seat 301. Sealing gaskets 305 are provided on both sides inside the magnetic block 304. The sealing gaskets 305 are made of expanding fireproof sealing strips and have the characteristic of expanding when heated. They can expand rapidly to fill the gap in a fire to achieve effective sealing. There are two sets of sealing gaskets 305. The sealing gaskets 305 expand rapidly when heated and can fill the assembly gap between the sealing seat 301 and the counterweight 6 to form a complete seal and effectively prevent high-temperature smoke from penetrating from the bottom of the device.

[0031] The guide rail 2 has a counterweight 6 that slides inside. A thick ceramic fiber sealing strip is attached to the inner side of the guide rail 2. When the curtain runs, it forms line contact with the sealing strip, which reduces frictional resistance and enhances lateral sealing. There are two sets of guide rails 2, which are symmetrically distributed about the counterweight 6. This allows for easy positioning of the counterweight 6 and improves the stability of the counterweight 6 when it moves up and down. The counterweight 6 is magnetically connected to the magnetic block 304, which allows the counterweight 6 to accurately fit the top surface of the magnetic block 304 and achieve rapid positioning.

[0032] The effect achieved by the entire embodiment is as follows: when the counterweight 6 falls to the designed position in the guide rail 2 along with the smoke curtain body 5, the magnetic block 304 and the counterweight 6 generate a magnetic attraction, so that the counterweight 6 is precisely attached to the top surface of the magnetic block 304, achieving rapid fixation; while the sealing gasket 305 expands rapidly when heated, which can fill the assembly gap between the sealing seat 301 and the counterweight 6, forming a complete seal, effectively preventing high-temperature flue gas from penetrating from the bottom of the device, improving the smoke blocking efficiency of the device, and significantly improving the overall smoke blocking effect of the device.

[0033] Example 2

[0034] The top of the guide rail 2 is equipped with an equipment box 1, which can conveniently protect the internal components. The equipment box 1 is connected to the guide rail 2 by fixing bolts, which can improve the stability of the equipment box 1 during operation. One end of the equipment box 1 is equipped with a drive motor 7. When the drive motor 7 is working, it starts after receiving a fire linkage signal or smoke and heat pulse signal. It transmits power to the roller shutter shaft 4 through a planetary gear reducer, driving the roller shutter shaft 4 to rotate, which in turn drives the smoke curtain body 5 to fall quickly, forming a vertical barrier. This barrier can effectively prevent the horizontal spread of high temperature smoke, buying valuable time for personnel evacuation and fire fighting and rescue. The Hall sensor built into the motor monitors the speed in real time. When an abnormality occurs or the winding overheats, it automatically switches to backup battery power to ensure that the curtain can fall smoothly to the set position. When selecting, the appropriate model should be selected according to actual needs. The components required in the drive motor 7 are all existing technologies and will not be described in detail below.

[0035] The output end of the drive motor 7 is provided with a roller shutter shaft 4, and a smoke curtain body 5 is provided on the outside of the roller shutter shaft 4. The bottom end of the smoke curtain body 5 is connected to the top end of the counterweight block 6.

[0036] The effect achieved by the entire embodiment 2 is as follows: the drive motor 7 is started by the control switch. When the drive motor 7 is working, it can drive the roller shutter shaft 4 to rotate, so that the smoke curtain body 5 falls quickly, and the counterweight 6 descends along the guide rail 2, thereby forming a vertical smoke barrier, which can effectively block the horizontal flow of smoke under the building ceiling.

[0037] Example 3

[0038] Both ends of the sealing seat 301 are provided with mounting blocks 302, which form an integral welded structure with the sealing seat 301. The mounting blocks 302 have mounting holes 303 inside.

[0039] The effect achieved by the entire embodiment three is that by inserting the fixing bolt through the mounting hole 303 into the interior of the guide rail 2, the sealing seat 301 can be easily fixedly installed directly below the guide rail 2.

[0040] Working principle: The drive motor 7 is started by the control switch. When the drive motor 7 is working, it can drive the roller shutter shaft 4 to rotate, so that the smoke curtain body 5 falls quickly, and the counterweight 6 descends along the guide rail 2, thereby forming a vertical smoke barrier, which can effectively block the horizontal flow of smoke under the building ceiling.

[0041] Secondly, by inserting the sealing seat 301 into the inside of the guide rail 2, and then inserting the fixing bolt through the mounting hole 303 into the inside of the guide rail 2, the sealing seat 301 can be easily fixedly installed directly below the guide rail 2. When the counterweight 6 falls to the designed position inside the guide rail 2 along with the smoke curtain body 5, the magnetic block 304 and the counterweight 6 generate a magnetic attraction, so that the counterweight 6 accurately fits the top surface of the magnetic block 304, achieving rapid fixation. Meanwhile, the sealing gasket 305 expands rapidly when heated, which can fill the assembly gap between the sealing seat 301 and the counterweight 6, forming a complete seal, effectively preventing high-temperature flue gas from penetrating from the bottom of the device, improving the smoke blocking efficiency of the device, and significantly improving the overall smoke blocking effect of the device.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roller screen smoke damper, comprising: include: Guide rail (2); A sealing mechanism (3) is provided on the inner side of the guide rail (2). The sealing mechanism (3) includes a sealing seat (301) provided on the lower inner side of the guide rail (2). A magnetic block (304) is fixedly connected to the bottom of the sealing seat (301). Sealing pads (305) are provided on both sides of the magnetic block (304). A counterweight (6) is slidably provided inside the guide rail (2). The counterweight (6) is magnetically connected to the magnetic block (304).

2. A roller screen smoke damper according to claim 1, wherein: The top of the guide rail (2) is provided with an equipment box (1), which is connected to the guide rail (2) by fixing bolts.

3. A roller screen smoke damper according to claim 2, wherein: A drive motor (7) is provided at one end of the equipment box (1), and a roller shutter shaft (4) is provided at the output end of the drive motor (7).

4. A roller screen smoke dam according to claim 1, wherein: The guide rail (2) is provided in two sets, and the guide rail (2) is symmetrically distributed about the counterweight (6).

5. A roller shutter-type smoke curtain according to claim 1, characterized in that: Both ends of the sealing seat (301) are provided with mounting blocks (302), and the mounting blocks (302) and the sealing seat (301) form a welded integrated structure.

6. A roller shutter-type smoke curtain according to claim 5, characterized in that: The mounting block (302) has mounting holes (303) inside.

7. A roller shutter-type smoke curtain according to claim 1, characterized in that: The sealing gasket (305) is made of intumescent fireproof sealing strip, and two sets of the sealing gasket (305) are provided.

8. A roller shutter-type smoke curtain according to claim 3, characterized in that: The outside of the roller shutter shaft (4) is provided with a smoke curtain body (5), the bottom end of which is connected to the top end of the counterweight (6).

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