Vertical lifting type special-shaped ceiling screen

Abstract

The utility model belongs to the technical field of ceiling screens, and particularly relates to a vertical lifting type special-shaped ceiling screen which comprises a mounting frame, a movable bottom plate is arranged at the bottom of the mounting frame, a folding and unfolding mechanism is arranged between the interior of the mounting frame and the top end of the movable bottom plate, and an L-shaped plate is fixedly connected to the bottom end of the movable bottom plate. A telescopic auxiliary mechanism is arranged between the top end of the L-shaped plate and the rear end of the mounting frame, and a plurality of scrap vibration auxiliary mechanisms are arranged in the telescopic auxiliary mechanism. The telescopic auxiliary mechanism and the scrap vibration auxiliary mechanism can drive a plurality of pairs of movable protruding rods to repeatedly make contact with and collide with the inner walls of the movable protruding rods in the telescopic process of the second frame body, the third frame body, the fourth frame body and the movable straight plate, vibration is generated and conducted to fireproof rolling cloth, and the fireproof rolling cloth is wound. Therefore, particles attached to the surface of the fireproof rolling cloth can be vibrated off under the vibration effect, the fireproof rolling cloth is not prone to being abraded due to extrusion and friction of the particles during rolling, and therefore the effects of being convenient to clean and long in service life are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of smoke screen vertical wall, specifically relates to a vertical lifting type special-shaped smoke screen vertical wall. BACKGROUND

[0002] The smoke screen vertical wall is made of non-combustible material, is vertically installed under the building ceiling, beam or suspended ceiling, and can form a certain smoke storage space during fire. The smoke screen vertical wall is a vertical partition installed under the suspended ceiling or floor or hidden in the suspended ceiling, which can prevent the horizontal flow of smoke and hot gas during fire.

[0003] The patent document discloses a vertical lifting type special-shaped smoke screen vertical wall (CN218944195U), which comprises a hanging bracket and a rope winding roller, a plurality of movable baffles are stacked on the rear side of the fixed baffle, the fixed baffle and the adjacent movable baffles and every two adjacent movable baffles are connected through the suspension mechanism, the inner sides of the fixed baffle and the movable baffle are provided with fireproof cloth, and the outer wall of the rope winding roller is wound with a traction rope, so that the movable baffles can be stacked in turn when being retracted.

[0004] The above device replaces the original reel type fireproof cloth with a plurality of baffles of the same shape, the baffles are overlapped and placed, and are pulled by the traction line. When the baffles need to be lowered, the traction line is gradually loosened to pull the baffles, and the baffles rely on their own weight to fall vertically, and the baffles are successively hung by the steel wire rope during the falling process, forming a surrounding technical means. However, when using the above device, although the plurality of baffles replace the reel type fireproof cloth to improve stability, the installation space is larger than that of the reel type, which easily affects the space utilization of the building. Moreover, particulate matter is often contained in smoke, and the surface of the smoke screen vertical wall is also attached with particulate matter when the smoke screen vertical wall blocks the smoke. The above device does not have a corresponding cleaning structure, so that the surface of the smoke screen vertical wall is easily abraded by the extrusion of particulate matter during subsequent winding, thereby affecting the subsequent use and reducing the service life. Therefore, a new vertical lifting type special-shaped smoke screen vertical wall needs to be improved. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a vertical lifting type special-shaped smoke screen vertical wall, which has the advantages of stable winding, small space occupation and convenient cleaning, and solves the problems of large space occupation and inconvenient cleaning of the existing smoke screen vertical wall.

[0006] To achieve the above-mentioned stable winding, small space occupation and easy cleaning purposes, the utility model provides the following technical scheme: a vertical lifting type special-shaped smoke blocking vertical wall, including the mounting frame, the bottom of mounting frame is equipped with movable bottom plate, and between the inside of mounting frame and the top of movable bottom plate is equipped with folding mechanism, the bottom end of movable bottom plate is fixedly connected with L-shaped plate, and between the top of L-shaped plate and the rear end of mounting frame is equipped with telescopic auxiliary mechanism, the inside of telescopic auxiliary mechanism is equipped with a plurality of vibration chip auxiliary mechanisms,

[0007] The folding mechanism includes a rotating rod, both ends of the rotating rod are rotatably connected with the inner wall of the mounting frame, and the outer wall of the rotating rod is wound with a fireproof winding cloth, and the bottom end of the fireproof winding cloth is fixedly connected with the top end of the movable bottom plate.

[0008] The telescopic auxiliary mechanism includes a first frame body, a second frame body, a third frame body, a fourth frame body and a movable straight plate, the first frame body, the second frame body, the third frame body, the fourth frame body and the movable straight plate are slidably connected with each other.

[0009] The plurality of vibration chip auxiliary mechanisms each include two pairs of movable convex rods, one end of each pair of movable convex rods is in contact with the inner wall of the first frame body, the second frame body, the third frame body and the fourth frame body, the inner wall of each of the first frame body, the second frame body, the third frame body and the fourth frame body is fixedly connected with four groups of half column strips, and the two pairs of movable convex rods are located at the top of the four groups of half column strips.

[0010] Further, the rear end of the mounting frame is fixedly connected with a motor, the output end of the motor and the outer wall of the rotating rod are each fixedly connected with a belt pulley, a pair of the belt pulleys are meshingly connected with a transmission belt, the rear end of the mounting frame is drilled with a rectangular opening, and the transmission belt is located in the rectangular opening.

[0011] Further, the bottom end of the fireproof winding cloth is provided in the form of a triangular column, and the inclined surface thereof faces the front side.

[0012] Further, the inner wall of each of the first frame body, the second frame body, the third frame body and the fourth frame body is drilled with two pairs of sliding grooves, both ends of each of the second frame body, the third frame body, the fourth frame body and the movable straight plate are fixedly connected with a pair of sliding blocks, the sliding blocks are located in the sliding grooves and are slidably connected therewith.

[0013] Further, both ends of each of the second frame body, the third frame body, the fourth frame body and the movable straight plate are embeddedly connected with a pair of embedded cylinders, the inside of each of the pair of embedded cylinders is slidably connected with a piston plate, one end of each of a plurality of the embedded cylinders away from each other is drilled with a circular hole, one end of the movable convex rod near the embedded cylinder passes through the circular hole and is fixedly connected with one end of the piston plate, the outer wall of the movable convex rod is sleeved with a small spring, and both ends of the small spring are respectively fixedly connected with one end of the piston plate and the inner wall of the embedded cylinder.

[0014] Further, the front end of the mounting frame is provided with an opening, and the front end of the mounting frame is connected with a detachable sealing plate through bolts.

[0015] Further, both ends of the mounting frame are fixedly connected with mounting plates, and the outer walls of the pair of mounting plates are each excavated with a pair of mounting holes.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、The utility model discloses when using, through the extension and folding mechanism and telescopic auxiliary mechanism drive motor drive fireproof winding cloth to extend or winding, with the synchronous telescopic motion of the second frame body, third frame body, fourth frame body and movable straight plate, make fireproof winding cloth reach the effect of stable winding, and when fireproof winding cloth is wound to the inside of mounting frame, the space is small, reach the effect that the space occupancy is low.

[0018] 2、The utility model discloses when using, through the telescopic auxiliary mechanism and the vibration chip auxiliary mechanism can in the telescopic process of the second frame body, third frame body, fourth frame body and movable straight plate, drive multiple movable convex rods repeatedly and the inner wall contact and collide, produce vibration, and conduct to fireproof winding cloth, so as to utilize the vibration effect and vibrate the particle that the fireproof winding cloth surface adheres, make fireproof winding cloth winding not easy because of the abrasion of the extrusion and friction of particle, thereby reach the effect that convenient cleaning and long service life are high. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings:

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the whole structure schematic diagram of another view of the utility model;

[0022] Figure 3 It is the three-dimensional structure schematic diagram of extension and folding mechanism in the utility model;

[0023] Figure 4 It is the local cut structure schematic diagram of telescopic auxiliary mechanism in the utility model;

[0024] Figure 5 It is the structure schematic diagram of the utility model Figure 4 in the enlarged structure of A

[0025] Figure 6 It is the local cut structure schematic diagram of vibration chip auxiliary mechanism in the utility model.

[0026] In the figure: 1, mounting frame; 2, detachable sealing plate; 3, movable bottom plate; 4, folding mechanism; 401, rotating rod; 402, fireproof rolling cloth; 403, pulley; 404, transmission belt; 405, motor; 5, L-shaped plate; 6, telescopic auxiliary mechanism; 601, first frame body; 602, second frame body; 603, third frame body; 604, fourth frame body; 605, movable straight plate; 606, sliding block; 607, sliding groove; 7, chip vibration auxiliary mechanism; 701, embedded cylinder; 702, piston plate; 703, movable convex rod; 704, small spring; 705, half column; 8, mounting plate; 801, mounting hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Please refer to Figures 1 to 6 The utility model provides a kind of technical scheme: a vertical lifting type special-shaped smoke baffle, including mounting frame 1, the bottom of mounting frame 1 is equipped with movable bottom plate 3, and folding mechanism 4 is equipped between the inside of mounting frame 1 and the top of movable bottom plate 3, the bottom of movable bottom plate 3 is fixedly connected with L-shaped plate 5, and telescopic auxiliary mechanism 6 is equipped between the top of L-shaped plate 5 and the rear end of mounting frame 1, and multiple chip vibration auxiliary mechanisms 7 are equipped in telescopic auxiliary mechanism 6;

[0029] Folding mechanism 4 includes rotating rod 401, both ends of rotating rod 401 are rotatably connected with the inner wall of mounting frame 1, and fireproof rolling cloth 402 is wound on the outer wall of rotating rod 401, and the bottom of fireproof rolling cloth 402 is fixedly connected with the top of movable bottom plate 3;

[0030] Folding mechanism 4 can drive rotating rod 401 to rotate in forward and reverse directions, so as to drive fireproof rolling cloth 402 and movable bottom plate 3 to move downward, extend and block smoke, or drive fireproof rolling cloth 402 and movable bottom plate 3 to move upward and roll into mounting frame 1, reduce space occupation, and space occupation rate is low.

[0031] Telescopic auxiliary mechanism 6 includes first frame body 601, second frame body 602, third frame body 603, fourth frame body 604 and movable straight plate 605, and first frame body 601, second frame body 602, third frame body 603, fourth frame body 604 and movable straight plate 605 are slidably connected with each other;

[0032] When the fireproof rolling cloth 402 and the movable bottom plate 3 move up and down through the telescopic auxiliary mechanism 6, the second frame body 602, the third frame body 603, the fourth frame body 604 and the movable straight plate 605 are driven to move synchronously with the movable bottom plate 3, so as to assist the extension and rolling of the fireproof rolling cloth 402 and keep the stable movement of the fireproof rolling cloth 402, thereby achieving the effect of stable rolling of the fireproof rolling cloth 402.

[0033] The plurality of chip removal auxiliary mechanisms 7 each include two pairs of movable convex rods 703, one end of the plurality of pairs of movable convex rods 703 is in contact with the inner walls of the first frame body 601, the second frame body 602, the third frame body 603 and the fourth frame body 604, respectively, four groups of half column bars 705 are fixedly connected to the inner walls of the first frame body 601, the second frame body 602, the third frame body 603 and the fourth frame body 604, respectively, and the two pairs of movable convex rods 703 are located at the top of the four groups of half column bars 705.

[0034] Through the chip removal auxiliary mechanism 7, the plurality of pairs of movable convex rods 703 are driven to move along the inner walls of the first frame body 601, the second frame body 602, the third frame body 603 and the fourth frame body 604 during the movement of the second frame body 602, the third frame body 603, the fourth frame body 604 and the movable straight plate 605, and repeatedly contact and separate from the plurality of groups of half column bars 705 during the movement, so as to drive the plurality of pairs of movable convex rods 703 to repeatedly contact and collide with the inner walls of the first frame body 601, the second frame body 602, the third frame body 603 and the fourth frame body 604, generate vibration, and conduct the vibration to the fireproof rolling cloth 402, so as to shake off the particles adhered to the surface of the fireproof rolling cloth 402 by the vibration, clean the particles on the surface of the fireproof rolling cloth 402, and prevent the fireproof rolling cloth 402 from being abraded by the extrusion and friction of the particles during rolling.

[0035] As shown in Figure 1 , Figure 2 and Figure 3 , the rear end of the mounting frame 1 is fixedly connected with a motor 405, the output end of the motor 405 and the outer wall of the rotating rod 401 are fixedly connected with a belt pulley 403, a pair of belt pulleys 403 are meshingly connected with a transmission belt 404, a rectangular through hole is opened in the rear end of the mounting frame 1, and the transmission belt 404 is located in the rectangular through hole.

[0036] It should be noted that the motor 405 drives the rotating rod 401 to rotate through the meshing transmission of a pair of belt pulleys 403 and the transmission belt 404, so as to drive the fireproof rolling cloth 402 to extend downward or roll upward through the rotation of the rotating rod 401.

[0037] As shown in Figure 1 , Figure 2 and Figure 3 , the bottom end of the fireproof rolling cloth 402 is provided in a triangular column shape, and the inclined surface thereof faces the front side.

[0038] It should be noted that the bottom end of the fireproof rolling cloth 402 is provided with a triangular column, which can make the particles fall quickly along the inclined surface during the particle vibration cleaning process, so as to avoid the particles falling and staying on the movable bottom plate 3.

[0039] As shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , the inner walls of the first frame body 601, the second frame body 602, the third frame body 603 and the fourth frame body 604 are all provided with two pairs of sliding grooves 607, and the two ends of the second frame body 602, the third frame body 603, the fourth frame body 604 and the movable straight plate 605 are all fixedly connected with a pair of sliding blocks 606, which are located in the sliding grooves 607 and are in sliding connection with the sliding grooves 607.

[0040] It should be noted that when the second frame body 602, the third frame body 603, the fourth frame body 604 and the movable straight plate 605 move downward, the corresponding pairs of sliding blocks 606 also move downward along the sliding grooves 607, which assists the movement of the second frame body 602, the third frame body 603, the fourth frame body 604 and the movable straight plate 605, so as to keep the stable movement of the second frame body 602, the third frame body 603, the fourth frame body 604 and the movable straight plate 605, thereby assisting the stretching and rolling movement of the fireproof rolling cloth 402.

[0041] As shown in Figure 4 , Figure 5 and Figure 6 , the two ends of the second frame body 602, the third frame body 603, the fourth frame body 604 and the movable straight plate 605 are all embeddedly connected with a pair of embedded cylinders 701, the interiors of the pair of embedded cylinders 701 are all in sliding connection with a piston plate 702, the distal ends of the pairs of embedded cylinders 701 are all provided with a circular hole, and an active protruding rod 703 passes through the circular hole and is fixedly connected with one end of the piston plate 702, the outer wall of the active protruding rod 703 is sleeved with a small spring 704, and the two ends of the small spring 704 are respectively fixedly connected with one end of the piston plate 702 and the inner wall of the embedded cylinder 701.

[0042] It should be noted that when the second frame body 602, the third frame body 603, the fourth frame body 604 and the movable straight plate 605 move, they drive the plurality of pairs of embedded barrels 701 to move synchronously, and the plurality of pairs of movable convex rods 703 are driven by the plurality of pairs of embedded barrels 701 to move along the inner walls of the first frame body 601, the second frame body 602, the third frame body 603 and the fourth frame body 604 respectively, and the plurality of groups of half column strips 705 are located in the movement paths of the plurality of pairs of movable convex rods 703. When the plurality of pairs of movable convex rods 703 move up and down, they contact and are extruded by the half column strips 705. Under the elastic displacement of the piston plate 702 and the small spring 704, the movable convex rods 703 are driven to move into the embedded barrels 701 and are separated from the inner walls of the first frame body 601, the second frame body 602, the third frame body 603 and the fourth frame body 604. When the plurality of pairs of movable convex rods 703 continue to move and are separated from the half column strips 705 at this position, the movable convex rods 703 are reset by the elastic displacement of the piston plate 702 and the small spring 704, and contact and collide with the inner walls of the first frame body 601, the second frame body 602, the third frame body 603 and the fourth frame body 604. Thus, the vibration is repeated, and is transmitted to the fireproof rolling cloth 402, so that the particles adhering to the surface of the fireproof rolling cloth 402 are loosened and fall under the action of vibration. The particles on the surface of the fireproof rolling cloth 402 are cleaned, so that the fireproof rolling cloth 402 is not easily abraded by the extrusion and friction of the particles during rolling.

[0043] As shown in Figure 1 , the front end of the mounting frame 1 is provided with an opening, and the front end of the mounting frame 1 is connected with a detachable sealing plate 2 through a bolt.

[0044] It should be noted that the detachable sealing plate 2 is connected through a detachable bolt connection mode, which can drive the detachable sealing plate 2 to be conveniently detached and separated from the mounting frame 1, so as to facilitate the staff to clean and maintain the structure components inside the mounting frame 1.

[0045] As shown in Figure 1 and Figure 2 , the two ends of the mounting frame 1 are fixedly connected with mounting plates 8, and the outer walls of a pair of mounting plates 8 are each provided with a pair of mounting holes 801.

[0046] It should be noted that the mounting plate 8 cooperates with the mounting hole 801 to enable the mounting frame 1 to be mounted on the building, so as to realize the fixed installation of the smoke screen vertical wall.

[0047] The working principle of the above embodiment is that: first, the mounting plate 8 and the mounting frame 1 are placed on the corresponding installation position of the building, and are fixedly installed by cooperating with the external connecting components through the mounting hole 801; when a fire occurs, the motor 405 drives the rotating rod 401 to rotate through the meshing transmission of a pair of belt pulleys 403 and transmission belts 404, drives the fireproof rolling cloth 402 and the movable bottom plate 3 to move downward, and the corresponding second frame body 602, third frame body 603, fourth frame body 604 and movable straight plate 605 respectively move synchronously with the movable bottom plate 3 under the sliding assistance of the sliding block 606 and the sliding groove 607, so that the fireproof rolling cloth 402 is extended to block the smoke, and after the fire is extinguished, the motor 405 drives the rotating rod 401 to rotate in the opposite direction through the meshing transmission of a pair of belt pulleys 403 and transmission belts 404, drives the fireproof rolling cloth 402 and the movable bottom plate 3 to move upward, and the corresponding second frame body 602, third frame body 603, fourth frame body 604 and movable straight plate 605 move synchronously again, and a plurality of embedded cylinders 701 also move synchronously, and a plurality of movable protruding rods 703 move along the inner walls of the first frame body 601, second frame body 602, third frame body 603 and fourth frame body 604, respectively, and a plurality of groups of half column strips 705 are located in the movement paths of the plurality of movable protruding rods 703, and when the plurality of movable protruding rods 703 move up and down, they contact and are extruded by the half column strips 705, and under the elastic displacement action of the piston plate 702 and the small spring 704, the movable protruding rod 703 moves to the inside of the embedded cylinder 701 and separates from the inner walls of the first frame body 601, second frame body 602, third frame body 603 and fourth frame body 604, and when the plurality of movable protruding rods 703 continue to move and separate from the half column strips 705 at this position, the movable protruding rod 703 is again driven to reset by the elastic displacement action of the piston plate 702 and the small spring 704, and contacts and collides with the inner walls of the first frame body 601, second frame body 602, third frame body 603 and fourth frame body 604. In this way, vibration is generated and transmitted to the fireproof rolling cloth 402, and the particles adhering to the surface of the fireproof rolling cloth 402 are loosened and fall under the action of vibration, and the particles on the surface of the fireproof rolling cloth 402 are cleaned, and the movement of the fireproof rolling cloth 402 and the movable bottom plate 3 is stopped after they are rolled into the mounting frame 1.

[0048] The wiring diagram of the motor 405 in the present scheme belongs to the common knowledge in the art, and its working principle is a known technology. The model is selected according to the actual use, so the control mode and wiring arrangement of the motor 405 will not be explained in detail.

[0049] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A vertically lifting shaped smoke barrier curtain comprising a mounting frame (1), characterized in that The bottom of the mounting frame (1) is provided with a movable bottom plate (3), and a folding mechanism (4) is arranged between the inside of the mounting frame (1) and the top end of the movable bottom plate (3), the bottom end of the movable bottom plate (3) is fixedly connected with an L-shaped plate (5), and a telescopic auxiliary mechanism (6) is arranged between the top end of the L-shaped plate (5) and the rear end of the mounting frame (1), and the inside of the telescopic auxiliary mechanism (6) is provided with a plurality of vibration chip auxiliary mechanisms (7). The folding mechanism (4) comprises a rotating rod (401), both ends of the rotating rod (401) are rotatably connected with the inner wall of the mounting frame (1), and the outer wall of the rotating rod (401) is wound with a fireproof rolling cloth (402), and the bottom end of the fireproof rolling cloth (402) is fixedly connected with the top end of the movable bottom plate (3). The telescopic auxiliary mechanism (6) comprises a first frame body (601), a second frame body (602), a third frame body (603), a fourth frame body (604) and a movable straight plate (605), and the first frame body (601), the second frame body (602), the third frame body (603), the fourth frame body (604) and the movable straight plate (605) are slidably connected with each other. A plurality of vibration chip auxiliary mechanisms (7) each comprise two pairs of movable convex rods (703), one end of each pair of movable convex rods (703) is in contact with the inner wall of the first frame body (601), the second frame body (602), the third frame body (603) and the fourth frame body (604), the inner wall of the first frame body (601), the second frame body (602), the third frame body (603) and the fourth frame body (604) is fixedly connected with four groups of half column strips (705), and two pairs of movable convex rods (703) are respectively located at the top of the four groups of half column strips (705).

2. A vertically-raising shaped smoke retaining screen according to claim 1, wherein The rear end of the mounting frame (1) is fixedly connected with a motor (405), and the output end of the motor (405) and the outer wall of the rotating rod (401) are fixedly connected with a belt pulley (403), one pair of the belt pulleys (403) are meshedly connected with a transmission belt (404), and the rear end of the mounting frame (1) is provided with a rectangular opening, and the transmission belt (404) is located in the rectangular opening.

3. The vertically lifting irregular-shaped smoke retaining wall according to claim 1, wherein The bottom end of the fireproof rolling cloth (402) is provided with a triangular column, and the inclined surface thereof faces the front side.

4. The vertically-raising special-shaped smoke-preventing screen according to claim 1, characterized in that The inner wall of the first frame body (601), the second frame body (602), the third frame body (603) and the fourth frame body (604) is provided with two pairs of sliding grooves (607), and the two ends of the second frame body (602), the third frame body (603), the fourth frame body (604) and the movable straight plate (605) are fixedly connected with a pair of sliding blocks (606), the sliding blocks (606) are located in the sliding grooves (607) and are slidably connected with the sliding grooves (607).

5. The vertically-raising shaped smoke retaining panel of claim 1, wherein The second frame (602), the third frame (603), the fourth frame (604) and the two ends of the movable straight plate (605) are embedded and connected with a pair of embedded cylinders (701), the interiors of the pair of embedded cylinders (701) are slidably connected with piston plates (702), a plurality of pairs of the embedded cylinders (701) are away from each other and are drilled with round holes, the movable protruding rods (703) pass through the round holes and are fixedly connected with one end of the piston plates (702) close to the embedded cylinders (701), the outer walls of the movable protruding rods (703) are sleeved with small springs (704), and the two ends of the small springs (704) are fixedly connected with one end of the piston plates (702) and the inner wall of the embedded cylinders (701).

6. A vertically-raising shaped smoke retaining screen according to claim 1, characterized in that The front end of the mounting frame (1) is provided with an opening, and the front end of the mounting frame (1) is connected with a detachable sealing plate (2) through bolts.

7. The vertically-raising special-shaped smoke-preventing screen according to claim 1, characterized in that The two ends of the mounting frame (1) are fixedly connected with mounting plates (8), and the outer walls of the pair of mounting plates (8) are drilled with a pair of mounting holes (801).

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