A smoke box for a motorized roller shutter smoke baffle

Abstract

The utility model discloses a kind of smoke box for electric roller shutter smoke blocking vertical wall, belong to smoke blocking vertical wall technical field, including smoke box main body, pivot and barrier piece. Chamber is equipped inside smoke box main body, and top is fixed in ceiling by connecting piece. Pivot is rotatably installed in chamber for winding roller shutter, and roller shutter winding end is stretched out from the opening of the bottom of smoke box main body. Barrier piece is long strip sheet structure, top edge connects chamber top, bottom edge is respectively abutted roller shutter or pivot when winding or releasing, and chamber upper half is separated left and right, and cooperate with the separation chamber of roller shutter to avoid smoke penetration. Barrier piece can adopt hard material, elastic piece, hard material or flexible piece combination magnetic strip 6 etc. form. Smoke box main body adopts splicing design, and bottom is equipped with decorative strip, and top can be provided with hanging arm. The present application effectively improves the effect of smoke prevention, and the installation convenience and flexibility are high.

Description

Technical Field

[0001] This utility model relates to the field of smoke curtain technology, and in particular to a smoke-blocking box for an electric roller shutter smoke curtain. Background Technology

[0002] In building fire protection systems, smoke curtains are important smoke control partitions. Common types of smoke curtains include fixed glass smoke curtains, fixed fabric smoke curtains, fixed steel smoke curtains, and motorized roller shutter smoke curtains. Among them, motorized roller shutter smoke curtains offer flexibility and convenience due to their electrically controllable curtain retraction and extension, making them widely used in specific scenarios.

[0003] In the prior art, referring to the electric roller shutter type smoke curtain disclosed in Chinese Patent Publication No. CN211715009U, the smoke curtain includes a smoke curtain body and a roller shutter mechanism. The upper end face of the smoke curtain body is fixedly connected to the ceiling panel. A cavity for installing the roller shutter mechanism's cylinder is formed by a cigarette box sleeve and two cigarette box end caps. The bottom of the cigarette box sleeve has a through hole for the roller shutter cloth of the roller shutter mechanism to pass through only, and a smoke-blocking protrusion extends into the cavity along the edge of the through hole. A sealing gasket that contacts the roller shutter cloth of the roller shutter mechanism is fixed on the smoke-blocking protrusion. This design improves the smoke prevention and blocking effect of the electric roller shutter type smoke curtain to a certain extent. By contacting the roller shutter cloth with the sealing gasket, it attempts to reduce the diffusion of smoke from the gap between the roller shutter cloth and the through hole.

[0004] However, the aforementioned patented technology still has significant drawbacks in practical applications. For example, its smoke-proof and smoke-blocking effect depends entirely on the tightening effect of the sealing gasket. In actual operation, if the sealing gasket is tightened too much, it can enhance the sealing performance to some extent, but it will create greater resistance to the descent of the roller blind, affecting the normal opening and closing action of the roller blind.

[0005] Conversely, if the sealing gasket is too loose, although it can ensure that the roller shutter falls smoothly, the smoke will easily spread laterally from the gap between the roller shutter and the through hole to the adjacent smoke-blocking zone due to the poor seal. This will affect the smoke-blocking zone where the fire has not spread, and thus cannot meet the requirements for the smoke-blocking effect of the smoke curtain, ultimately affecting the use effect of the electric roller shutter smoke curtain. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a smoke-blocking box for the smoke-blocking curtain of an electric roller shutter, so as to solve the problem that the smoke-blocking effect is affected by the tightening effect of the sealing gasket.

[0007] A smoke-blocking box for an electric roller shutter smoke curtain includes a smoke-blocking box body, the smoke-blocking box body having an internal chamber, the smoke-blocking box body being fixedly connected to the ceiling via a connector, and further includes:

[0008] A rotating shaft, which is rotatably installed inside the cavity, is used to roll up the smoke curtain.

[0009] A barrier element, wherein the barrier element is detachably disposed within the cavity;

[0010] The barrier divides the upper half of the chamber into left and right sections, and works with the roller shutter to divide the lower half of the chamber into left and right sections, thereby forming a barrier to prevent smoke from penetrating from the inside of the smoke shield box into the adjacent partition.

[0011] In this invention, the barrier is a rigid component, with its top movably connected to the top of the chamber via a connecting strip, and its bottom pressed against the roller shutter or rotating shaft by its own weight.

[0012] Furthermore, the rotating shaft is magnetic, and the bottom of the barrier is magnetically attached to the rotating shaft.

[0013] In this invention, the barrier is a flexible component, and the rotating shaft is magnetic; after the top of the flexible component is fixed to the top of the chamber, the bottom is magnetically attracted to the rotating shaft.

[0014] In this invention, the barrier is an elastic element. After the top is fixed to the top of the chamber, the bottom is elastically bent to one side and presses against the roller shutter or rotating shaft.

[0015] In this utility model, the main body of the smoke shield box includes a shell and rotating seats connected to both ends of the shell. The shell is made of multiple metal plates spliced ​​together, and the two rotating seats seal both ends of the shell.

[0016] The bottom of the housing has an opening that connects to the chamber, and the retractable end of the roller blind extends downward from the opening.

[0017] Furthermore, the housing includes a top plate and a left side plate and a right side plate connected to both sides of the top plate. The top plate has connecting edges extending downward from both sides. The left side plate and the right side plate are respectively fixed to the connecting edges on both sides. The bottom of the left side plate and the right side plate has baffles extending inward. The opening is formed between the two baffles. A decorative strip is provided at the opening and is connected to the inside of the opening.

[0018] In this utility model, a hanging arm is provided on the top of the smoke shield box body, and the connecting piece suspends the smoke shield box body below the ceiling through the hanging arm.

[0019] The beneficial effects of this utility model are:

[0020] This utility model discloses a smoke-blocking box for an electric roller shutter smoke curtain. By incorporating a barrier component that works in conjunction with the roller shutter, the internal chambers of the smoke-blocking box are divided into left and right sections. This effectively prevents smoke from penetrating from the inside of the smoke-blocking box into the partitioned sections. It solves the problem in existing technologies where the smoke-blocking effect is affected by the tightness of the sealing gasket. Excessive tightness will not affect the normal opening and closing of the roller shutter, nor will excessive looseness allow smoke to diffuse. The barrier component can be made of rigid, elastic, or flexible materials combined with magnetic strips, allowing for flexible adjustment to meet different needs and ensuring improved smoke-blocking performance without affecting the roller shutter's operation. Furthermore, the smoke-blocking box features a modular design for easy and quick installation. A decorative strip at the bottom protects the roller shutter and serves a decorative purpose, while a top-mounted hanging arm facilitates installation away from ceiling pipes or cables, enhancing installation convenience and flexibility. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the internal structure of the smoke shield body in Example 1;

[0023] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0024] Figure 3 This is an anatomical diagram of the main body of the smoke shield box in Example 1;

[0025] Figure 4 This is a schematic diagram of the suspension installation of the smoke baffle box in Example 1;

[0026] Figure 5 This is a schematic diagram of the internal structure of the smoke shield body in Example 2;

[0027] Figure 6 This is a schematic diagram of the internal structure of the smoke shield body in Example 3;

[0028] The attached figures are labeled as follows: main body of the smoke shield 1, chamber 100, connector 2, rotating shaft 3, roller shutter 4, opening 101, barrier 5, connecting strip 51, shell 11, rotating seat 12, top plate 111, left side plate 112, right side plate 113, connecting edge 1110, edge guard 1120, decorative strip 13, hanging arm 102, magnetic strip 6. Detailed Implementation

[0029] This utility model provides a smoke-blocking box for a smoke-blocking curtain of an electric roller shutter. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Example 1:

[0032] Please see Figures 1 to 4 As shown:

[0033] This embodiment discloses a smoke-blocking box for an electric roller shutter smoke-blocking curtain, including a smoke-blocking box body 1, the smoke-blocking box body 1 having a cavity 100 inside, and the top of the smoke-blocking box body 1 being fixedly connected to the ceiling by a connector 2;

[0034] It also includes a rotating shaft 3, the length of which corresponds to the length of the chamber 100 inside the smoke-blocking box body 1. The rotating shaft 3 is rotatably installed inside the chamber 100 to roll up the smoke-blocking curtain 4. The bottom of the smoke-blocking box body 1 is provided with an opening 101 that communicates with the chamber 100. The rolling end of the curtain 4 extends downward from the opening 101. The curtain 4 divides the lower half of the chamber 100 into left and right sections.

[0035] It also includes a barrier 5, which is a long strip-shaped sheet structure. The length of the barrier 5 corresponds to the length of the metal shaft 3. The top edge of the barrier 5 is connected to the top of the chamber 100. When the roller blind 4 is rolled up, the bottom edge of the barrier 5 abuts against the rolled-up roller blind 4. When the roller blind 4 is released, the bottom edge of the barrier 5 abuts against the shaft 3. Therefore, the barrier 5 can divide the upper half of the chamber 100 into left and right sections. Specifically, when the shaft 3 releases the roller blind 4, the barrier 5 can always abut against the roller blind 4 or the shaft 3 under the action of gravity to form a barrier, preventing smoke from penetrating from the upper half of the chamber 100 into the adjacent partitioned area.

[0036] Therefore, in this embodiment, the barrier 5 and the roller shutter 4 form a barrier inside the cigarette box body 1, thereby dividing the chamber 100 into approximately two sections, preventing smoke from penetrating from inside the cigarette box body 1 into the adjacent partition, and effectively blocking the smoke.

[0037] Furthermore, such as Figure 1 As shown, the barrier 5 is a rigid component. The top of the rigid component is movably connected to the top of the chamber 100 via a connecting strip 51, and the bottom is pressed against the roller shutter 4 or the rotating shaft 3 by its own weight.

[0038] In this embodiment, as Figure 3 As shown, the main body 1 of the smoke shield box includes a shell 11 and rotating seats 12 connected to both ends of the shell 11. The shell 11 is a tubular structure spliced ​​from three metal plates. The two rotating seats 12 seal both ends of the shell 11. The opening 101 is located at the bottom of the shell 11 and extends to both ends. The rotating shaft 3 is installed inside the shell 11 and its two ends are rotatably engaged with the two rotating seats 12 respectively. The shell 11 includes a top plate 111 and a left side plate 112 and a right side plate 113 connected to both sides of the top plate. Specifically, connecting edges 1110 extend downward from both sides of the top plate 111. The left side panel 112 and the right side panel 113 are fixed to the connecting edge 1110 by screws or by adhesive. The bottom of the left side panel 112 and the right side panel 113 both have a retaining edge 1120 extending inward. The retaining edges 1120 on both sides are separated from each other to form the opening 101. The shell 11 is made of multiple metal plates spliced ​​together. The two ends are sealed with the rotating seat 12 to form the smoke shield box body 1. The smoke shield box body 1 is designed to be spliced ​​together and assembled according to the orderly installation steps, which makes the operation easier and faster and greatly improves the efficiency of installation and construction.

[0039] Furthermore, such as Figure 2 As shown, a decorative strip 13 is also provided at the opening 101 at the bottom of the housing 11. The decorative strip 13 is fixed to the inside of the opening 101 by screw connection. Specifically, the decorative strip 13 is connected to each side of the two side guards 1120. The decorative strip 13 can prevent the roller blind 4 from rubbing against the corners of the guards 1120, thereby protecting the roller blind 4. In addition, the decorative strip 13 can also play a decorative role.

[0040] In this embodiment, when there are pipes or cables on the ceiling, the smoke shield box needs to be installed away from the pipes or cables, which will undoubtedly cause inconvenience during installation. Therefore, to avoid this situation, such as Figure 4 As shown, a hanging arm 102 is provided on the top of the smoke shield box body 1. The connecting piece 2 suspends the smoke shield box body 1 below the ceiling through the hanging arm 102, thereby avoiding pipes or cables during installation. The connecting piece 2 is preferably an expansion bolt and a threaded rod.

[0041] Example 2:

[0042] like Figure 5As shown, the structure of this embodiment 2 is basically the same as that of embodiment 1. The difference is that the barrier 5 is an elastic member. After the top of the elastic member is fixed to the top of the chamber 100 by the connecting strip 51, the bottom of the elastic member is elastically bent to one side and presses against the roller blind 4 or the rotating shaft 3. Under the action of elasticity, the bottom of the barrier 5 can apply a radial pressure to the roller blind 4. The radial pressure can improve the sealing between the barrier 5 and the roller blind 4 or the rotating shaft 3, thereby improving the barrier effect.

[0043] Example 3:

[0044] like Figure 6 As shown, the structure of this embodiment 3 is basically the same as that of embodiment 1. The difference is that the barrier 5 is a rigid or flexible component, and the rotating shaft 3 is a magnetic metal component. When the barrier 5 is a rigid component, the top of the rigid component is fixed to the top of the chamber 100 by the connecting strip 51, and the bottom of the rigid component is also provided with a magnetic strip 6. Thus, the bottom of the rigid component presses against the roller blind 4 or the rotating shaft 3 under its own weight and the gravity and magnetic attraction of the magnetic strip 6, thereby forming a barrier effect. When the barrier 5 is a flexible component, the top of the flexible component is fixed to the top of the chamber 100 by the connecting strip 51, and the bottom of the flexible component is also provided with a magnetic strip 6. At this time, the flexible component presses against the roller blind 4 or the rotating shaft 3 only under the gravity and magnetic attraction of the magnetic strip 6, thereby forming a barrier effect.

[0045] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present invention.

Claims

1. A smoke-blocking box for a smoke-blocking curtain of an electric roller shutter, comprising a smoke-blocking box body, wherein the smoke-blocking box body has an internal cavity, and the smoke-blocking box body is fixedly connected to the ceiling by a connector, characterized in that, Also includes: A rotating shaft, which is rotatably installed inside the cavity, is used to roll up the smoke curtain. A barrier element, wherein the barrier element is detachably disposed within the cavity; The barrier divides the upper half of the chamber into left and right sections, and works with the roller shutter to divide the lower half of the chamber into left and right sections, thereby forming a barrier to prevent smoke from penetrating from the inside of the smoke shield box into the adjacent partition.

2. The smoke-blocking box for the smoke-blocking curtain of an electric roller shutter according to claim 1, characterized in that, The barrier is a rigid component, with its top movably connected to the top of the chamber via a connecting strip, and its bottom pressed against the roller shutter or rotating shaft by its own weight.

3. The smoke-blocking box for the smoke-blocking curtain of an electric roller shutter according to claim 2, characterized in that, The rotating shaft is magnetic, and the bottom of the barrier is magnetically attached to the rotating shaft.

4. The smoke-blocking box for the smoke-blocking curtain of an electric roller shutter according to claim 1, characterized in that, The barrier is a flexible component, and the rotating shaft is magnetic; after the top of the flexible component is fixed to the top of the chamber, the bottom is magnetically attracted to the rotating shaft.

5. The smoke-blocking box for the smoke-blocking curtain of an electric roller shutter according to claim 1, characterized in that, The barrier is an elastic element. After the top is fixed to the top of the chamber, the bottom bends elastically to one side and presses against the roller shutter or the rotating shaft.

6. The smoke-blocking box for the smoke-blocking curtain of an electric roller shutter according to any one of claims 1-5, characterized in that, The main body of the smoke shield box includes a shell and rotating seats connected to both ends of the shell. The shell is made of multiple metal plates spliced ​​together, and the two rotating seats seal both ends of the shell. The bottom of the housing has an opening that connects to the chamber, and the retractable end of the roller blind extends downward from the opening.

7. The smoke-blocking box for the smoke-blocking curtain of an electric roller shutter according to claim 6, characterized in that, The housing includes a top plate and a left side plate and a right side plate connected to both sides of the top plate. The top plate has connecting edges extending downward from both sides. The left side plate and the right side plate are respectively fixed to the connecting edges on both sides. The bottom of the left side plate and the right side plate has baffles extending inward. The opening is formed between the two baffles. A decorative strip is provided at the opening and is connected to the inside of the opening.

8. The smoke shield box for the smoke curtain of an electric roller shutter according to any one of claims 1-5, characterized in that, The main body of the smoke shield is equipped with a hanging arm at the top, and the connecting piece suspends the main body of the smoke shield below the ceiling through the hanging arm.

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