Suspended smoke screen fixing device

By combining the mounting frame and the drive mechanism, the problem of flexible smoke curtains being easily blown away by wind was solved, thus improving the stability and safety of the protective fabric, ensuring the smoke blocking effect and facilitating personnel escape.

CN223490298UActive Publication Date: 2025-10-31QINGDAO YINGGUOTAI SECURITY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422748732.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-10-31
Estimated Expiration
2034-11-11

AI Technical Summary

Technical Problem

Existing flexible smoke curtains are easily blown up by wind, which reduces their smoke-blocking effect and poses a safety hazard.

Method used

The system employs a combination of mounting brackets, drive components, protective fabric, slide rails, metal strips, insertion ports, pressure strips, and a drive mechanism. The drive mechanism secures the protective fabric to both sides and the bottom edge, ensuring its stability.

Benefits of technology

It improves the stability and safety of the protective fabric when blocking smoke, enhances the smoke-blocking effect, and facilitates personnel escape in emergency situations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fixing devices, and particularly discloses a ceiling screen fixing device which comprises a mounting frame, a driving part and protective cloth, slideways are formed in the two sides of the inner wall of the mounting frame, the edges of the two sides of the protective cloth are movably arranged in the slideways, a metal strip is arranged in the mounting frame, and the metal strip is connected with the driving part. The two ends of the metal strip are arranged on the sliding ways in a sliding mode respectively, the bottom edge of the protective cloth and the metal strip are fixedly installed, an inserting opening is formed in the bottom in the installation frame, the metal strip directly faces the inserting opening, and the size of the metal strip is matched with that of the inserting opening. The ceiling screen fixing device comprises a mounting frame, a pressing strip is arranged on the mounting frame, driving mechanisms used for driving the pressing strip to move horizontally are arranged on the two sides of the mounting frame, a smoke sensor is arranged on the side edge of the mounting frame, and each driving mechanism comprises a lead screw rotationally arranged on the side edge of the mounting frame. The stability of the protective cloth during smoke blocking is effectively improved, the safety is high, and the practicability is high.
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Description

Technical Field

[0001] This utility model belongs to the field of fixing device technology, and in particular relates to a smoke curtain fixing device. Background Technology

[0002] A smoke curtain is a fire protection facility installed at the top of a building space, usually located below the ceiling or suspended ceiling. It is generally made of non-combustible materials, such as fireproof glass or fireproof cloth. Its main function is to form a barrier that prevents the horizontal spread of smoke when it hangs down to a certain height during a fire, thereby dividing the building space into different smoke-proof zones, effectively preventing the rapid spread of smoke, providing a clear view and a relatively safe environment for the safe evacuation of personnel, and creating favorable conditions for fire rescue work. It is an important component of ensuring building fire safety.

[0003] Existing flexible smoke curtains rely on gravity to maintain their vertical position after being unrolled by a motor. However, once subjected to external forces, such as wind, the smoke curtain can easily be blown up, or "lifted open" by the wind. Once this happens, the smoke curtain's ability to block dense smoke is greatly reduced, and it cannot effectively prevent the spread of dense smoke.

[0004] Existing patent (application number: CN202120172520.6) discloses a flexible smoke curtain. By incorporating an anti-lifting kit to fix the base to the ground and using anti-lifting claws to hold the anti-lifting strip, the smoke curtain will not be blown off even when wind is applied, thus ensuring a prolonged effect of blocking dense smoke during emergencies.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, in actual use, these devices often only clamp and fix the bottom edge of the protective fabric. The sides of the protective fabric are easily subject to external forces, causing them to shake or vibrate, which affects the smoke-blocking effect and poses a safety hazard. Therefore, improvements are needed. To this end, a smoke-blocking curtain fixing device is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a smoke curtain fixing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a smoke curtain fixing device, comprising a mounting frame, a driving component, and a protective cloth. The mounting frame has slide rails on both sides of its inner wall. The protective cloth's edges are movably disposed within the slide rails. A metal strip is disposed within the mounting frame, with both ends of the metal strip slidably disposed on the slide rails. The bottom edge of the protective cloth is fixedly installed to the metal strip. An insertion port is provided at the bottom of the mounting frame, with the metal strip directly facing the insertion port, and the size of the metal strip matching the size of the insertion port. Pressure strips are disposed within both sets of slide rails. A driving mechanism for driving the pressure strips to move horizontally is provided on both sides of the mounting frame. A smoke sensor is disposed on the side of the mounting frame.

[0008] As a further description of the above solution: by setting up the mounting bracket, driving component, protective cloth, slide rail, metal strip, socket, pressure strip, and the working relationship between the driving mechanism, the two sides and bottom edge of the protective cloth can be fixed, effectively improving the stability of the protective cloth when blocking smoke, with high safety and strong practicality.

[0009] Preferably, the drive mechanism includes a lead screw rotatably mounted on the side of the mounting frame, a motor fixedly mounted on one side of the mounting frame, a movable bar mounted on the side of the mounting frame, and movable rods evenly distributed on the movable bar.

[0010] As a further description of the above scheme, the components within the drive mechanism are described.

[0011] Preferably, there are two sets of the lead screw, motor, movable bar, and movable rod. The end of the motor output shaft is fixedly installed to one end of the lead screw. The movable bar is threadedly connected to the lead screw. The movable rod is slidably mounted on the mounting frame, and the end of the movable rod is fixedly installed to the side of the pressure bar.

[0012] As a further description of the above scheme: the number of component groups and their positional relationships within the driving mechanism are described.

[0013] Preferably, a pad is laid on the pressure strip, and the pad is made of rubber.

[0014] As a further description of the above solution: setting a rubber pad can not only improve the sealing effect on both sides of the protective cloth, but also will not damage the protective cloth.

[0015] Preferably, horizontal bars are fixedly installed on both sides of the metal strip.

[0016] As a further description of the above solution: a horizontal bar is installed, which can be manually pulled to move the metal bar vertically upwards, facilitating the escape of personnel.

[0017] Preferably, a controller is provided on both the outer and inner sides of the mounting bracket, and the controller is electrically connected to the drive unit, the smoke sensor, and the motor, respectively.

[0018] As a further description of the above solution: the controller is set to automatically control the various components of the device.

[0019] In summary, compared with the prior art, the beneficial effects of this utility model are: by setting up the mounting frame, driving component, protective cloth, slide rail, metal strip, insertion port, pressure strip, and the working cooperation between the driving mechanism, the two sides and bottom edge of the protective cloth can be fixed, effectively improving the stability of the protective cloth when blocking smoke, with high safety and strong practicality. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a side view of the present invention.

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a structural diagram of the mounting bracket and drive component of this utility model;

[0024] Figure 5 This is a side sectional view of the mounting bracket of this utility model.

[0025] Legend:

[0026] 1. Mounting bracket; 2. Drive unit; 3. Protective cloth; 4. Slide rail; 5. Metal strip; 6. Socket; 7. Pressure strip; 8. Drive mechanism; 81. Lead screw; 82. Motor; 83. Movable bar; 84. Movable rod; 9. Smoke sensor; 10. Horizontal bar. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 This utility model provides a technical solution:

[0029] A smoke curtain fixing device includes a mounting frame 1, a driving component 2, and a protective cloth 3. The mounting frame 1 has slide rails 4 on both sides of its inner wall. The protective cloth 3 is movably disposed within the slide rails 4 on both sides. A metal strip 5 is disposed within the mounting frame 1, with its two ends slidably disposed on the slide rails 4. The bottom edge of the protective cloth 3 is fixedly installed to the metal strip 5. An insertion port 6 is provided at the bottom of the mounting frame 1, with the metal strip 5 aligned with the insertion port 6 and its size matching the size of the insertion port 6. Pressure strips 7 are disposed within both sets of slide rails 4. Driving mechanisms 8 for horizontal movement of the pressure strips 7 are provided on both sides of the mounting frame 1. A smoke sensor 9 is provided on the side of the mounting frame 1. The drive mechanism 8 includes a lead screw 81 rotatably mounted on the side of the mounting frame 1, a motor 82 fixedly mounted on one side of the mounting frame 1, a movable bar 83 mounted on the side of the mounting frame 1, and movable rods 84 evenly distributed on the movable bar 83. Two sets of the lead screw 81, motor 82, movable bar 83, and movable rods 84 are provided. The output shaft end of the motor 82 is fixedly mounted to one end of the lead screw 81. The movable bar 83 is threadedly connected to the lead screw 81. The movable rod 84 is slidably mounted on the mounting frame 1, and the end of the movable rod 84 is fixedly mounted to the side of the pressure strip 7.

[0030] The smoke curtain fixing device is fixedly installed in the required position by the overall fixing bracket 1. When the smoke sensor 9 detects smoke, the driving component 2 drives the protective cloth 3 and the metal strip 5 to move vertically downward on the slide 4 until the metal strip 5 is fully inserted into the socket 6 at the bottom of the mounting bracket 1. Since the size of the metal strip 5 is compatible with the size of the socket 6, it can ensure that the bottom edge of the protective cloth 3 remains stable when blocking smoke and is not easy to shake.

[0031] At the same time, pressure strips 7 are installed in both sets of slides 4. At this time, both sets of motors 82 are started at the same time. The output shaft of motor 82 rotates and drives the lead screw 81 to rotate. The rotation of lead screw 81 drives the movable strip 83, movable plate and pressure strip 7 to move horizontally at the same time. The pressure strip 7 is pressed tightly against the two sides of the protective cloth 3, further enhancing the stability of the two sides of the protective cloth 3.

[0032] This smoke curtain fixing device can fix the two sides and bottom edge of the protective cloth 3, effectively improving the stability of the protective cloth 3 when blocking smoke. It is highly safe and practical.

[0033] A pad is laid on the pressure strip 7, and the pad is made of rubber.

[0034] The rubber pad not only improves the sealing effect on both sides of the protective cloth 3, but also does not damage the protective cloth 3.

[0035] Horizontal bars 10 are fixedly installed on both sides of the metal strip 5;

[0036] In emergency situations, such as fires, people may need to evacuate. In this case, the horizontal bar 10 can be manually pulled to move the metal bar 5 vertically upwards, thereby disengaging the metal bar 5 from the socket 6 and no longer obstructing the escape route. This fully considers the needs of personnel escape and improves the emergency response capability of the device. Before pulling the horizontal bar 10, the pressure bar 7 must be driven away from the edge of the protective cloth 3 by the drive mechanism 8 to avoid the pressure bar 7 obstructing the pulling operation. After personnel escape, the metal bar 5 is reinserted into the socket 6 by gravity and the limiting of the slide 4. Then, the two sides of the protective cloth 3 are fixed again, further improving the safety performance of the device.

[0037] Controllers are provided on both the outer and inner sides of the mounting bracket 1. The controllers are electrically connected to the drive unit 2, the smoke sensor 9, and the motor 82, respectively.

[0038] Setting up a controller enables automatic control of various components of the device.

[0039] Working principle:

[0040] The smoke curtain fixing device is fixedly installed in the required position by the overall fixing bracket 1. When the smoke sensor 9 detects smoke, the driving component 2 drives the protective cloth 3 and the metal strip 5 to move vertically downward on the slide 4 until the metal strip 5 is fully inserted into the socket 6 at the bottom of the mounting bracket 1. Since the size of the metal strip 5 is compatible with the size of the socket 6, it can ensure that the bottom edge of the protective cloth 3 remains stable when blocking smoke and is not easy to shake.

[0041] At the same time, pressure strips 7 are installed in both sets of slides 4. At this time, both sets of motors 82 are started at the same time. The output shaft of motor 82 rotates and drives the lead screw 81 to rotate. The rotation of lead screw 81 drives the movable strip 83, movable plate and pressure strip 7 to move horizontally at the same time. The pressure strip 7 is pressed tightly against the two sides of the protective cloth 3, further enhancing the stability of the two sides of the protective cloth 3.

[0042] In emergency situations, such as fires, people may need to evacuate. In this case, the horizontal bar 10 can be pulled manually to move the metal bar 5 vertically upward, thereby disengaging the metal bar 5 from the socket 6 and no longer blocking the escape route. This fully considers the needs of personnel escape and improves the emergency response capability of the device. Before pulling the horizontal bar 10, the pressure bar 7 must be driven away from the edge of the protective cloth 3 by the drive mechanism 8 to avoid the pressure bar 7 obstructing the pulling operation. After the personnel escape, the metal bar 5 is reinserted into the socket 6 by gravity and the limit of the slide 4. Then, the two sides of the protective cloth 3 are fixed again to further improve the safety performance of the device.

[0043] This smoke curtain fixing device can fix the two sides and bottom edge of the protective cloth 3, effectively improving the stability of the protective cloth 3 when blocking smoke. It is highly safe and practical.

[0044] 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 smoke curtain fixing device, comprising a mounting frame (1), a driving component (2), and a protective cloth (3), characterized in that, The mounting frame (1) has slide rails (4) on both sides of its inner wall. The protective cloth (3) is movably disposed in the slide rails (4) on both sides. The mounting frame (1) has a metal strip (5) inside. The two ends of the metal strip (5) are slidably disposed on the slide rails (4). The bottom edge of the protective cloth (3) is fixedly installed with the metal strip (5). The bottom of the mounting frame (1) has an insertion port (6). The metal strip (5) is directly opposite the insertion port (6), and the size of the metal strip (5) is compatible with the size of the insertion port (6). The two sets of slide rails (4) are each provided with pressure strips (7). The mounting frame (1) has a drive mechanism (8) on both sides for driving the pressure strips (7) to move horizontally. The mounting frame (1) has a smoke sensor (9) on its side.

2. The smoke curtain fixing device according to claim 1, characterized in that, The drive mechanism (8) includes a lead screw (81) rotatably mounted on the side of the mounting frame (1), a motor (82) fixedly mounted on the side of the mounting frame (1), a movable bar (83) mounted on the side of the mounting frame (1), and movable rods (84) evenly distributed on the movable bar (83).

3. The smoke curtain fixing device according to claim 2, characterized in that, The lead screw (81), motor (82), movable bar (83), and movable rod (84) are all provided in two sets. The output shaft end of the motor (82) is fixedly installed to one end of the lead screw (81). The movable bar (83) is threadedly connected to the lead screw (81). The movable rod (84) is slidably installed on the mounting frame (1), and the end of the movable rod (84) is fixedly installed to the side of the pressure bar (7).

4. The smoke curtain fixing device according to claim 3, characterized in that, A pad is laid on the pressure strip (7), and the pad is made of rubber.

5. A smoke curtain fixing device according to claim 3, characterized in that, A horizontal bar (10) is fixedly installed on both sides of the metal strip (5).

6. The smoke curtain fixing device according to claim 1, characterized in that, The mounting bracket (1) is equipped with controllers on both the outer and inner sides. The controllers are electrically connected to the drive unit (2), the smoke sensor (9), and the motor (82), respectively.

Citation Information

Patent Citations

  • Flexible ceiling screen

    CN214971336U