Lifting type smoke screen curtain

Abstract

The utility model discloses a lift type smoke -preventing vertical wall, including mounting bracket, smoke -preventing part and support part: the smoke -preventing part sets up in the inside of mounting bracket, the smoke -preventing part has the winding shaft of transverse rotation setting in the inside of mounting bracket, the inside of winding shaft is provided with the connecting plate, the bottom of connecting plate is provided with the smoke -preventing wall cloth, the smoke -preventing wall cloth is compound cloth, winding shaft rotates to wind the smoke -preventing wall cloth, the support part sets up in the inside of smoke -preventing part, the support part has the connecting frame of setting up in the side of connecting plate, and the connecting frame is located in the inside of winding shaft, and the side of connecting frame is provided with the rotary rod of rotation, and the bottom of rotary rod is provided with the vertical rod of rotation. The utility model discloses through being provided with smoke -preventing part and support part, can realize the lift adjustment of smoke -preventing wall cloth through the rotation of winding shaft, and through the rotary rod and vertical rod of support part, support the smoke -preventing wall cloth, ensure that it keeps flat in the unfolded state, reduce the influence of the airflow that the smoke -preventing wall cloth received.

Description

Technical Field

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

[0002] Smoke curtains are fixed or movable smoke-blocking facilities made of non-combustible materials, hanging at least 500mm from the ceiling. Movable smoke curtains refer to smoke curtains that automatically descend during a fire due to the action of heat, smoke, or other control equipment. Smoke curtains are vertical smoke-blocking facilities installed below the building ceiling, typically made of non-combustible materials.

[0003] Some existing retractable smoke curtains rely mainly on their own weight to maintain a vertical position after deployment. In the event of a fire, the flow of high-temperature smoke and the building's mechanical ventilation system will generate strong airflow. Because of their lighter weight, flexible smoke curtains are easily lifted by the wind, which reduces their effectiveness in blocking dense smoke and makes them unable to effectively prevent the spread of dense smoke. Utility Model Content

[0004] The purpose of this invention is to provide a liftable smoke curtain to solve the problem mentioned in the background art. Existing liftable smoke curtains, after being deployed, mainly rely on their own weight to maintain a vertical state. In the event of a fire, the flow of high-temperature smoke and the building's mechanical ventilation system will generate strong airflow. Because the flexible smoke curtain is lightweight, it is easily lifted by the wind, which reduces the smoke curtain's ability to block dense smoke and fails to effectively prevent the spread of dense smoke.

[0005] To solve the above problems, this utility model provides the following technical solution: a liftable smoke curtain, comprising a mounting frame, a smoke-blocking part, and a support part:

[0006] The smoke-blocking part is located inside the mounting frame. The smoke-blocking part has a take-up shaft that is laterally rotatably installed inside the mounting frame. A connecting plate is installed inside the take-up shaft. A smoke-blocking wall covering, which is a composite fabric, is installed at the bottom of the connecting plate. The take-up shaft rotates to take up the smoke-blocking wall covering. The support part is located inside the smoke-blocking part. The support part has a connecting frame installed on the side of the connecting plate. The connecting frame is located inside the take-up shaft. A rotating rod is rotatably installed on the side of the connecting frame. A vertical rod is rotatably installed at the bottom of the rotating rod. The rotating rod abuts against the side of the smoke-blocking wall covering.

[0007] By adopting the above technical solution, the lifting and lowering adjustment of the smoke-blocking fabric can be achieved by rotating the winding shaft, and the smoke-blocking fabric can be supported by the rotating rod and vertical rod of the support part to ensure that it remains flat in the unfolded state and reduce the impact of airflow on the smoke-blocking fabric.

[0008] Preferably, the smoke-blocking part also has a motor disposed on the side of the mounting frame, the output shaft of the motor being connected to the take-up shaft, and a counterweight strip being disposed at the bottom of the smoke-blocking wall fabric.

[0009] By adopting the above technical solution, the smoke-blocking wall covering can be automatically rolled up and down by driving the winding shaft with a motor, which improves the convenience of use. At the same time, the counterweight strip can increase the weight at the bottom of the smoke-blocking wall covering, making it more stable when unfolded and preventing deformation caused by airflow or vibration.

[0010] Preferably, the smoke-blocking part also has a storage cavity opened inside the winding shaft, the connecting plate is detachably fixed in the storage cavity by bolts, the connecting frame is located in the storage cavity, and the two connecting frames are fixed to both sides of the connecting plate by bolts.

[0011] By adopting the above technical solution, the connecting plates and connecting frames can be reasonably stored in the storage cavity, reducing the space occupied.

[0012] Preferably, the support also has a rotating shaft a disposed on the side of the connecting frame, and one end of the rotating rod is rotatably connected to the rotating shaft a.

[0013] By adopting the above technical solution, the rotating rod can be flexibly rotated relative to the connecting frame through the rotating shaft a.

[0014] Preferably, the support also has a pivot b disposed on the side of the plumb rod, and the end of the rotating rod away from the connecting frame is rotatably connected to the plumb rod.

[0015] By adopting the above technical solution, a rotatable connection can be formed between the rotating rod and the vertical rod through the rotating shaft b.

[0016] Preferably, the support is provided in two sets, and each set of the support is provided with three rotating rods.

[0017] By adopting the above technical solution, the supporting force can be evenly distributed through multiple sets of rotating rods, avoiding excessive stress on the smoke barrier wall and thus preventing deformation, thereby improving the overall structural stability.

[0018] Preferably, the bottom surface of the plumb bob is provided with an arc surface that matches the curvature of the outer surface of the winding shaft.

[0019] By adopting the above technical solution, the curved surface design allows the vertical bar to fit tightly against the winding shaft in the winding state, reducing the space occupied and preventing wrinkles or wear of the smoke-proof wall covering during the winding process.

[0020] Compared with the prior art, the beneficial effects of this utility model are: by providing a smoke-blocking part and a support part, the smoke-blocking wall cloth can be adjusted in height by rotating the winding shaft, and the smoke-blocking wall cloth is supported by the rotating rod and the vertical rod of the support part, which improves the flatness of the smoke-blocking wall cloth in the unfolded state and reduces the impact of airflow on the smoke-blocking wall cloth. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the overall structure of this application;

[0023] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this application;

[0024] Figure 4 This is a schematic diagram of the connection structure between the connecting plate and the connecting frame in this application;

[0025] Figure 5 This is an exploded structural diagram of the support component of this application;

[0026] Figure 6 This is a schematic diagram of the folded structure of the support part in this application.

[0027] In the diagram: 1. Mounting frame; 2. Smoke baffle; 201. Winding shaft; 202. Storage cavity; 203. Motor; 204. Connecting plate; 205. Smoke baffle fabric; 206. Counterweight bar; 3. Support; 301. Connecting frame; 302. Rotating shaft a; 303. Rotating rod; 304. Vertical rod; 305. Rotating shaft b. 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 Figure 1 , Figure 2 and Figure 3 This embodiment provides a technical solution: a liftable smoke curtain, including a mounting frame 1, a smoke-blocking part 2, and a support part 3.

[0031] The smoke-blocking part 2 is disposed inside the mounting frame 1. The smoke-blocking part 2 has a take-up shaft 201 that is laterally rotatably disposed inside the mounting frame 1. A connecting plate 204 is disposed inside the take-up shaft 201. A smoke-blocking wall covering 205, which is a composite fabric, is disposed at the bottom of the connecting plate 204. The take-up shaft 201 rotates to take up the smoke-blocking wall covering 205. A support part 3 is disposed inside the smoke-blocking part 2. The support part 3 has a connecting frame 301 disposed on the side of the connecting plate 204. The connecting frame 301 is located at the take-up shaft 204. Inside the roll 201, a rotating rod 303 is rotatably mounted on the side of the connecting frame 301, and a vertical rod 304 is rotatably mounted on the bottom of the rotating rod 303. The rotating rod 303 abuts against the side of the smoke-blocking wall covering 205. The smoke-blocking wall covering 205 can be raised and lowered by rotating the roll 201. The rotating rod 303 and the vertical rod 304 of the support part 3 support the smoke-blocking wall covering 205 to ensure that it remains flat in the unfolded state and reduce the impact of airflow on the smoke-blocking wall covering 205.

[0032] Example 2

[0033] Please see Figure 4 , Figure 5 and Figure 6 This embodiment provides a technical solution: a liftable smoke curtain, including a smoke-blocking part 2 and a supporting part 3.

[0034] A motor 203 is installed on the side of the mounting frame 1. The output shaft of the motor 203 is connected to the take-up shaft 201. A counterweight 206 is installed at the bottom of the smoke-blocking fabric 205. The motor 203 is a servo motor. The working principle of the servo motor is mainly based on a closed-loop control system. Its core is to accurately control the position, speed and acceleration of the object. Taking pulse control as an example, after receiving a pulse signal, the servo motor will rotate by an angle corresponding to the pulse, thereby achieving displacement. At the same time, the encoder inside the servo motor will send out a corresponding number of pulses as feedback, forming a closed loop with the pulses sent by the control circuit. The control circuit continuously adjusts the operation of the servo motor according to these pulse signals until it reaches and maintains the set position or speed. The above is the existing technology and will not be repeated below. When selecting the model, its power should be selected to match the needs of the device to ensure that the object to be driven is driven. The motor 203 can drive the winding shaft 201 to rotate, realizing the automatic winding and unwinding of the smoke-blocking wall covering 205, improving the convenience of use. At the same time, the counterweight 206 can increase the weight at the bottom of the smoke-blocking wall covering 205, making it more stable when unfolded and preventing deformation caused by airflow or vibration.

[0035] A storage cavity 202 is provided inside the take-up shaft 201. The connecting plate 204 is detachably fixed in the storage cavity 202 by bolts. The connecting frame 301 is located in the storage cavity 202. The two connecting frames 301 are fixed to both sides of the connecting plate 204 by bolts. The connecting plate 204 and the connecting frame 301 can be reasonably stored in the storage cavity 202 to reduce the space occupied.

[0036] A rotating shaft a302 is provided on the side of the connecting frame 301. One end of the rotating rod 303 is rotatably connected to the rotating shaft a302, and the rotating rod 303 can be flexibly rotated relative to the connecting frame 301 through the rotating shaft a302.

[0037] A pivot b305 is provided on the side of the plumb rod 304. The end of the rotating rod 303 away from the connecting frame 301 is rotatably connected to the plumb rod 304. A rotatable connection can be formed between the rotating rod 303 and the plumb rod 304 through the pivot b305.

[0038] The support part 3 is provided in two sets, and each set of support part 3 is provided with three rotating rods 303. The support force can be evenly distributed through multiple sets of rotating rods 303, which can prevent the smoke-blocking wall cloth 205 from being deformed due to excessive local stress and improve the stability of the overall structure.

[0039] The bottom surface of the vertical bar 304 is provided with an arc surface that is consistent with the curvature of the outer surface of the winding shaft 201. The arc surface design allows the vertical bar 304 to fit tightly with the winding shaft 201 in the winding state, reducing the space occupied and preventing the smoke-proof wall cloth 205 from wrinkling or abrading during the winding process.

[0040] Working principle: First, when the smoke-blocking wall covering 205 needs to be lowered, the motor 203 is started. Since the output shaft of the motor 203 is connected to the take-up shaft 201, the motor 203 starts to run and drives the take-up shaft 201 to rotate. As the take-up shaft 201 rotates, the smoke-blocking wall covering 205, due to its own weight and the action of the bottom counterweight 206, begins to gradually unfold from the take-up shaft 201 and hang down. When the smoke-blocking wall covering 205 is fully unfolded, the support part 3 is no longer restrained by the smoke-blocking wall covering 205, allowing the two vertical rods 304 to fall naturally under the influence of gravity, and causing the rotating rods 303 to abut against the side of the smoke-blocking wall covering 205, providing support for the smoke-blocking wall covering 205. Since the support part 3 is provided with two sets, each set has three rotating rods 303, these rotating rods 303 can evenly distribute the supporting force and prevent the smoke-blocking wall covering 205 from falling. Excessive local stress can cause deformation. This improves the flatness of the smoke-blocking fabric 205 in its unfolded state, reduces the impact of airflow on the smoke-blocking fabric 205, and enhances its stability.

[0041] 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.

[0042] 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 retractable smoke curtain, characterized in that, include: Mounting bracket (1); Smoke-blocking part (2) is disposed inside the mounting frame (1). The smoke-blocking part (2) has a winding shaft (201) that is laterally rotatably disposed inside the mounting frame (1). A connecting plate (204) is disposed inside the winding shaft (201). A smoke-blocking wall cloth (205) is disposed at the bottom of the connecting plate (204). The smoke-blocking wall cloth (205) is a composite fabric. The winding shaft (201) rotates to wind up the smoke-blocking wall cloth (205). Support (3) is provided inside the smoke baffle (2). The support (3) has a connecting frame (301) provided on the side of the connecting plate (204). The connecting frame (301) is located inside the winding shaft (201). A rotating rod (303) is rotatably provided on the side of the connecting frame (301). A vertical rod (304) is rotatably provided at the bottom of the rotating rod (303). The rotating rod (303) abuts against the side of the smoke baffle wall cloth (205).

2. The lifting smoke curtain according to claim 1, characterized in that: The smoke baffle (2) also has a motor (203) located on the side of the mounting bracket (1), the output shaft of which is connected to the winding shaft (201), and a counterweight strip (206) is provided at the bottom of the smoke baffle wall fabric (205).

3. A lifting smoke curtain according to claim 1, characterized in that: The smoke-blocking part (2) also has a storage cavity (202) opened inside the take-up shaft (201). The connecting plate (204) is detachably fixed in the storage cavity (202) by bolts. The connecting frame (301) is located in the storage cavity (202). The two connecting frames (301) are fixed on both sides of the connecting plate (204) by bolts.

4. A lifting smoke curtain according to claim 1, characterized in that: The support (3) also has a rotating shaft a (302) disposed on the side of the connecting frame (301), and one end of the rotating rod (303) is rotatably connected to the rotating shaft a (302).

5. A liftable smoke curtain according to claim 4, characterized in that: The support (3) also has a pivot b (305) disposed on the side of the vertical rod (304), and the end of the rotating rod (303) away from the connecting frame (301) is rotatably connected to the vertical rod (304).

6. A liftable smoke curtain according to claim 5, characterized in that: The support (3) is provided in two sets, and each set of the support (3) is provided with three rotating rods (303).

7. A lifting smoke curtain according to claim 1, characterized in that: The bottom surface of the plumb bob (304) is curved and has the same curvature as the outer surface of the winding shaft (201).

Images