A fire smoke diffusion delaying device
By designing smoke collection plates, smoke guiding mechanisms, and smoke exhaust components, the problems of slow response speed and insufficient smoke storage in fire smoke control devices are solved, achieving orderly separation and rapid discharge of smoke, and ensuring the stability and safety of escape routes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ARCHITECTURE DESIGN & RES GRP CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-23
AI Technical Summary
Existing fire smoke control technologies have slow response times and difficulty in accurately controlling smoke flow. Fixed devices obstruct escape routes and lack smoke storage functions, leading to repeated smoke circulation that threatens personnel safety.
A fire smoke delay device was designed, comprising a smoke collection plate, a smoke guiding mechanism, a blocking mechanism, and a smoke exhaust assembly. The device uses a partition plate, a guide plate, and an exhaust pipe to separate the smoke, and combines a flame-retardant isolation cloth and a gravity plate to quickly isolate the smoke. The smoke is then discharged through the smoke exhaust assembly and an inclined plate. A smoke detector drives an electric push rod to unfold the blocking cloth to prevent the smoke from spreading.
It achieves orderly separation and rapid discharge of smoke, prevents accumulation and spread, provides stable escape routes, reduces the continuous threat of smoke to personnel, and enhances fire rescue time.
Smart Images
Figure CN224387948U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fire smoke technology, specifically a fire smoke delay diffusion device. Background Technology
[0002] In modern building fires, the high-temperature, toxic fumes produced are a major cause of casualties. Statistics show that over 80% of fire victims do not die directly from burns, but from suffocation, poisoning, or disorientation due to inhaling large amounts of toxic fumes (such as carbon monoxide and hydrogen cyanide). Therefore, effectively slowing the spread of fire smoke to buy precious time for evacuation and fire rescue has become a critical issue that urgently needs to be addressed in the field of building fire safety.
[0003] Currently, traditional fire smoke control technologies mainly include mechanical smoke control systems and fire-resistant partitions. Mechanical smoke control systems regulate airflow within the building using supply and exhaust fans to actively extract or dilute smoke, but they suffer from slow response times and difficulty in precisely controlling smoke flow direction. Once a fire expands, mechanical systems may fail to expel large amounts of smoke in time, causing smoke to spread to other areas. Fire-resistant partitions, such as smoke curtains and fire-resistant roller shutters, can divide smoke zones to some extent, but they are mostly fixed or semi-automatic devices, making it difficult to achieve dynamic isolation and centralized control of smoke. Furthermore, they may obstruct evacuation routes, delaying evacuation time. In addition, existing smoke control devices generally lack centralized smoke storage capabilities, failing to effectively collect and expel smoke outside evacuation routes, causing smoke to circulate repeatedly within the building and continuously threatening personnel safety.
[0004] Therefore, this utility model provides a fire smoke delay diffusion device. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, a fire smoke delay diffusion device is proposed.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A fire smoke delay and diffusion device of this utility model includes an installation frame; a smoke collecting plate is fixedly installed on the top of the installation frame, and suspended ceilings are fixedly installed on both sides of the smoke collecting plate; a smoke guiding mechanism and a blocking mechanism are provided on the inner wall of the smoke collecting plate; a release mechanism is provided on the top of the smoke collecting plate; and a smoke exhaust assembly is provided on the top of the smoke collecting plate; the smoke guiding mechanism includes a partition plate, a guide plate, and an exhaust pipe; several sets of partition plates are provided, and these sets are horizontally fixedly installed on both sides of the inner wall of the smoke collecting plate; two sets of guide plates are provided, and these two sets are fixedly installed on the side of the partition plate away from the suspended ceiling; the top of the guide plate is fixedly installed with the exhaust pipe, and the exhaust pipe passes through the smoke collecting plate to its top; the partition plate can separate the smoke into small pieces, allowing the smoke to be discharged in an orderly manner and preventing accumulation on the inner wall of the smoke collecting plate; the guide plate can guide the smoke into the exhaust pipe, thus transporting the smoke to the smoke exhaust assembly.
[0007] Preferably, the blocking mechanism includes a flame-retardant isolation cloth, a guide groove, a slider, and a gravity plate. The flame-retardant isolation cloth is fixedly installed in the middle of the top of the inner wall of the smoke collection plate. The guide groove is opened on both sides of the inner wall of the mounting frame. The gravity plate is fixedly installed at the bottom of the flame-retardant isolation cloth. The two sides of the gravity plate are fixedly installed with the slider. The slider is located in the guide groove opened on both sides of the inner wall of the mounting frame and is slidably installed with the mounting frame. In this scheme, the combined use of the flame-retardant isolation cloth and the gravity plate can achieve rapid deployment, thereby quickly isolating the smoke and preventing its diffusion. The combined use of the guide groove and the slider can make the gravity plate stable and on a specific track when descending.
[0008] Preferably, the release mechanism includes a bidirectional electric push rod, an L-shaped frame, and a locking plate. The bidirectional electric push rod is fixedly installed in the middle of the top of the smoke collection plate. The output ends on both sides of the bidirectional electric push rod are fixedly installed with the L-shaped frame. The locking plate is movably inserted into the top of both sides of the mounting frame and is movably locked with the gravity plate. The side of the L-shaped frame away from the bidirectional electric push rod is fixedly installed with the locking plate. In this scheme, the combined use of the bidirectional electric push rod and the L-shaped frame can drive the locking plate to move through the smoke detector. The locking plate can provide support, so that the gravity plate can have stable support when not in use, preventing it from falling.
[0009] Preferably, the smoke exhaust assembly includes a smoke collection pipe and a smoke exhaust port. The smoke collection pipe is fixedly installed on the top of the exhaust pipe, and the top of the smoke collection pipe is fixedly installed with the smoke exhaust port. In this scheme, the combined use of the smoke collection pipe and the smoke exhaust port can transport the smoke from any set of exhaust pipes to the smoke exhaust port for discharge, thereby preventing the smoke from accumulating inside the smoke collection plate and causing the smoke collection plate to lose its smoke-drawing effect, thus making it impossible to attract smoke to the inner wall of the smoke collection plate for concentration.
[0010] Preferably, the inner wall of the smoke exhaust outlet is fixedly installed with inclined plates, and several sets of inclined plates are arranged in a longitudinally staggered manner on the inner wall of the smoke exhaust outlet. In this scheme, the cooperation of multiple sets of inclined plates can enable the smoke to be discharged smoothly. At the same time, if there is a strong wind outside, the mutual obstruction of multiple sets of inclined plates can prevent the smoke from flowing back and making the situation inside the building worse.
[0011] Preferably, a smoke detector is fixedly installed at the bottom of the ceiling, and magnets are provided on both sides of the flame-retardant isolation cloth. In this solution, the smoke detector can detect smoke in real time, so that when smoke is generated, it can immediately send a signal to the bidirectional electric push rod. The magnets on both sides of the flame-retardant isolation cloth can make the flame-retardant isolation cloth fit with the installation frame when it is unfolded, thereby reducing the passage of smoke and preventing the spread of fire.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The fire smoke delay and diffusion device of this utility model, through the arrangement of a partition plate, a guide plate, a discharge pipe, a flame-retardant isolation cloth, a guide groove, a slider, and a gravity plate, enables the partition plate to separate the smoke into small pieces, allowing the smoke to be discharged in an orderly manner and preventing it from accumulating on the inner wall of the smoke collection plate. The guide plate can guide the smoke into the discharge pipe, so that it can transport the smoke to the smoke exhaust assembly. The combined use of the flame-retardant isolation cloth and the gravity plate can achieve rapid deployment, thereby quickly isolating the smoke and preventing its diffusion. The combined use of the guide groove and the slider can ensure that the gravity plate maintains stability and a specific track when descending.
[0014] 2. The fire smoke delay and diffusion device of this utility model, through the arrangement of a bidirectional electric push rod, an L-shaped frame and a clamping plate, enables the bidirectional electric push rod and the L-shaped frame to work together to drive the clamping plate to move through the smoke detector. The clamping plate can play a supporting role, so that the gravity plate can have a stable supporting force when not in use, preventing it from falling. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a front perspective view of the present invention;
[0017] Figure 2 This is a bottom view of the present invention;
[0018] Figure 3 This is a partial sectional view of the present invention;
[0019] Figure 4 This is a schematic diagram of the barrier mechanism in this utility model;
[0020] Figure 5 yes Figure 2 Enlarged view of a portion of point A in the middle.
[0021] Legend:
[0022] 1. Mounting frame; 2. Smoke collection plate; 3. Ceiling; 4. Smoke guiding mechanism; 41. Divider plate; 42. Guide plate; 43. Exhaust pipe; 5. Barrier mechanism; 51. Flame-retardant isolation cloth; 52. Guide groove; 53. Slider; 54. Gravity plate; 6. Release mechanism; 61. Two-way electric push rod; 62. L-shaped frame; 63. Card plate; 7. Smoke exhaust assembly; 71. Smoke collection pipe; 72. Smoke exhaust port; 80. Inclined plate; 90. Smoke detector. Detailed Implementation
[0023] 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.
[0024] Specific implementation examples are given below.
[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a fire smoke delay and diffusion device includes an installation frame 1; a smoke collection plate 2 is fixedly installed on the top of the installation frame 1, and suspended ceilings 3 are fixedly installed on both sides of the smoke collection plate 2; a smoke guiding mechanism 4 and a blocking mechanism 5 are provided on the inner wall of the smoke collection plate 2; a release mechanism 6 is provided on the top of the smoke collection plate 2; and a smoke exhaust assembly 7 is provided on the top of the smoke collection plate 2; the smoke guiding mechanism 4 includes a partition plate 41, a guide plate 42, and an exhaust pipe 43, and the partition plate 41 is provided with several groups, which separate... Plate 41 is horizontally fixedly installed on both sides of the inner wall of the smoke collecting plate 2. Two sets of guide plates 42 are provided, and the two sets of guide plates 42 are fixedly installed on the side of the partition plate 41 away from the ceiling 3. The top of the guide plate 42 is fixedly installed with the discharge pipe 43, which passes through the smoke collecting plate 2 to its top. The barrier mechanism 5 includes a flame-retardant isolation cloth 51, a guide groove 52, a slider 53, and a gravity plate 54. The flame-retardant isolation cloth 51 is fixedly installed in the middle of the top of the inner wall of the smoke collecting plate 2. The guide groove 52 is opened on both sides of the inner wall of the mounting frame 1. The gravity plate 54 is fixedly installed on the... At the bottom of the flame-retardant isolation cloth 51, the two sides of the gravity plate 54 are fixedly installed with the slider 53. The slider 53 is located in the guide groove 52 opened on both sides of the inner wall of the mounting frame 1 and is slidably installed with the mounting frame 1. The release mechanism 6 includes a bidirectional electric push rod 61, an L-shaped frame 62 and a locking plate 63. The bidirectional electric push rod 61 is fixedly installed in the middle of the top of the smoke collection plate 2. The output ends on both sides of the bidirectional electric push rod 61 are fixedly installed with the L-shaped frame 62. The locking plate 63 is movably inserted into the top of both sides of the mounting frame 1 and is movably locked with the gravity plate 54. The L-shaped frame 62 is fixedly installed on the side away from the bidirectional electric push rod 61 and the card plate 63. The smoke exhaust assembly 7 includes a smoke collection pipe 71 and a smoke exhaust port 72. The smoke collection pipe 71 is fixedly installed on the top of the exhaust pipe 43. The top of the smoke collection pipe 71 is fixedly installed on the smoke exhaust port 72. An inclined plate 80 is fixedly installed on the inner wall of the smoke exhaust port 72. Several sets of inclined plates 80 are arranged in a longitudinally staggered manner on the inner wall of the smoke exhaust port 72. A smoke detector 90 is fixedly installed at the bottom of the ceiling 3. Magnets are provided on both sides of the flame-retardant isolation cloth 51.
[0026] like Figures 1 to 5As shown, the separator 41 can divide the smoke into small pieces, allowing the smoke to be discharged in an orderly manner and preventing it from accumulating on the inner wall of the smoke collection plate 2. The guide plate 42 can guide the smoke into the exhaust pipe 43, which then transports the smoke to the smoke exhaust assembly 7. The flame-retardant isolation cloth 51 and the gravity plate 54 work together to achieve rapid deployment, thereby quickly isolating the smoke and preventing its diffusion. The guide groove 52 and the slider 53 work together to ensure that the gravity plate 54 remains stable and on a specific track when descending. The bidirectional electric push rod 61 and the L-shaped frame 62 work together to push the card plate 63 to move through the drive of the smoke detector 90. The card plate 63 can provide support, giving the gravity plate 54 stable support when not in use and preventing it from falling. The smoke collection pipe 71 and the exhaust... The combined use of the smoke outlet 72 can transport the smoke from any set of exhaust pipes 43 to the smoke outlet 72 for discharge, thereby preventing the smoke from accumulating inside the smoke collection plate 2 and causing the smoke collection plate 2 to lose its smoke-drawing effect, thus failing to attract smoke to the inner wall of the smoke collection plate 2 for concentration. The cooperation of multiple sets of inclined plates 80 can ensure that the smoke can be discharged smoothly. At the same time, if there is a strong wind outside, the mutual obstruction of multiple sets of inclined plates 80 can prevent the smoke from backflowing, which would make the situation inside the building worse. The smoke detector 90 can detect the smoke in real time, and can immediately send a signal to the bidirectional electric push rod 61 when smoke is generated. The magnets on both sides of the flame-retardant isolation cloth 51 can ensure that the two sides of the flame-retardant isolation cloth 51 can be kept in close contact with the mounting frame 1 when the flame-retardant isolation cloth 51 is unfolded, thereby reducing the passage of smoke and preventing the spread of fire.
[0027] Working Principle: During operation, the mounting frame 1 is first installed onto the inner wall of the building, and then it can be used. In the event of a fire, smoke will flow through the ceiling 3 to the inner wall of the smoke collection plate 2. When the smoke passes through the smoke detector 90, it will detect the smoke and emit a signal to activate the bidirectional electric push rod 61. After the bidirectional electric push rod 61 is activated, it will push the two sets of L-shaped frames 62 to move outward. As the L-shaped frames 62 move, they will drive the clamping plate 63 to move synchronously. After the clamping plate 63 moves, it no longer supports the gravity plate 54. At that time, the gravity plate 54 will fall rapidly downward due to the influence of gravity. During the fall of the gravity plate 54, it will continuously pull the flame-retardant isolation cloth 51 downward and unfold it. At that time, the smoke will be separated and guided by the partition plate 41, so that the smoke can flow to the guide plate 42. Then, the guide plate 42 guides the smoke into the exhaust pipe 43 by its own slope. 43. The smoke is transported to the smoke collection pipe 71 and guided by the inclined plate 80 to be discharged through the smoke exhaust port 72. Since the smoke collection plate 2 is concave, its internal space can better store the smoke and prevent the smoke from spreading to other places. At the same time, due to the obstruction of the flame-retardant isolation cloth 51, the smoke cannot spread to the other side and can only be discharged through the exhaust pipe 43. When the escapers pass through the flame-retardant isolation cloth 51, they only need to open one side of the flame-retardant isolation cloth 51 to open a gap. Then the escapers pass through the flame-retardant isolation cloth 51 in an orderly manner. If necessary, the firefighters can directly tear off the flame-retardant isolation cloth 51 to cover their bodies to prevent the flames from contacting their bodies. When all the escapers have passed through, the magnets on both sides of the flame-retardant isolation cloth 51 can be reattached to the installation frame 1 under the influence of gravity and magnetic force, thereby preventing the smoke from spreading to one side in large quantities.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fire smoke diffusion delaying device comprising a mounting frame (1); characterized in that: A smoke collection plate (2) is fixedly installed on the top of the mounting frame (1), and a ceiling (3) is fixedly installed on both sides of the smoke collection plate (2). A smoke guiding mechanism (4) is provided on the inner wall of the smoke collection plate (2), and a blocking mechanism (5) is provided on the inner wall of the smoke collection plate (2). The smoke guiding mechanism (4) includes a partition plate (41), a guide plate (42) and an exhaust pipe (43). The partition plate (41) is provided in several groups, and the partition plate (41) is horizontally fixedly installed on both sides of the inner wall of the smoke collecting plate (2). The guide plate (42) is provided in two groups, and the two groups of guide plates (42) are fixedly installed on the side of the partition plate (41) away from the ceiling (3). The top of the guide plate (42) is fixedly installed with the exhaust pipe (43), and the exhaust pipe (43) passes through the smoke collecting plate (2) to its top. The barrier mechanism (5) includes a flame-retardant isolation cloth (51), a guide groove (52), a slider (53), and a gravity plate (54). The flame-retardant isolation cloth (51) is fixedly installed in the middle of the top of the inner wall of the smoke collection plate (2). The guide groove (52) is opened on both sides of the inner wall of the mounting frame (1). The gravity plate (54) is fixedly installed at the bottom of the flame-retardant isolation cloth (51). The two sides of the gravity plate (54) are fixedly installed with the slider (53). The slider (53) is located in the guide groove (52) opened on both sides of the inner wall of the mounting frame (1) and is slidably installed with the mounting frame (1).
2. A fire smoke delay diffusion device according to claim 1, characterized in that: The top of the smoke collection plate (2) is provided with a release mechanism (6).
3. A fire smoke delay diffusion device according to claim 2, characterized in that: The top of the smoke collection plate (2) is provided with a smoke exhaust assembly (7).
4. A fire smoke delay diffusion device according to claim 3, characterized in that: The release mechanism (6) includes a bidirectional electric push rod (61), an L-shaped frame (62), and a clamping plate (63). The bidirectional electric push rod (61) is fixedly installed in the middle of the top of the smoke collection plate (2). The output ends on both sides of the bidirectional electric push rod (61) are fixedly installed with the L-shaped frame (62). The clamping plate (63) is movably inserted into the top of both sides of the mounting frame (1). The clamping plate (63) is movably clamped with the gravity plate (54). The side of the L-shaped frame (62) away from the bidirectional electric push rod (61) is fixedly installed with the clamping plate (63).
5. A fire smoke delay diffusion device according to claim 4, characterized in that: The smoke exhaust assembly (7) includes a smoke collection pipe (71) and a smoke exhaust port (72). The smoke collection pipe (71) is fixedly installed on the top of the exhaust pipe (43), and the top of the smoke collection pipe (71) is fixedly installed with the smoke exhaust port (72).
6. A fire smoke delay diffusion device according to claim 5, characterized in that: An inclined plate (80) is fixedly installed on the inner wall of the smoke exhaust port (72). Several sets of the inclined plates (80) are arranged in a longitudinally staggered manner on the inner wall of the smoke exhaust port (72).
7. A fire smoke delay diffusion device according to claim 6, characterized in that: A smoke detector (90) is fixedly installed at the bottom of the ceiling (3), and magnets are provided on both sides of the flame-retardant isolation cloth (51).