Intelligent fireproof ventilation device for building
By installing smoke and temperature sensors in the ventilation ducts, combined with the electromagnet and permanent magnet mechanism, the automatic response of the fire plate is achieved, which solves the problem that traditional ventilation ducts cannot prevent the spread of smoke during fire, and improves the fire safety during fire.
Patent Information
- Application Number
- CN202422185484.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-06
AI Technical Summary
Traditional ventilation ducts cannot effectively prevent the spread of smoke and open flames during fires, which poses serious safety hazards.
An intelligent fire-proof and ventilation device for building is designed, using smoke sensors and temperature sensors to monitor fire hazards in real time, and the electromagnet and permanent magnet mechanisms make the fire-proof board automatically respond. Through the retractable connectors and chute structure, the fire-proof board can quickly close the vents and realize double insurance.
When a fire occurs, the ventilation openings can be closed quickly and reliably to prevent the fire from spreading, improve the fire response speed and efficiency, ensure that the fireproof board can be closed normally, and avoid control failure caused by line damage.
Smart Images
Figure CN223138040U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ventilation and fire prevention, in particular to a building intelligent fire prevention ventilation device. Background Technique
[0002] The ventilation duct is a kind of composite duct often used in buildings, which is a facility to reduce the concentration of harmful gases by making air flow. Since the ventilation duct promotes the air exchange between the inside and outside of the building, the air inside the building remains fresh.
[0003] At present, the traditional ventilation duct only has the function of ventilation. When a fire occurs either inside or outside the building, the smoke and open fire generated by the fire will also pass through the ventilation duct, thus causing greater and more serious potential safety hazards. Content of the Utility Model
[0004] The purpose of the utility model is to solve the problems existing in the prior art, and to provide a building intelligent fire prevention ventilation device.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A building intelligent fire prevention ventilation device includes a ventilation duct. Two ventilation openings with different heights are arranged on both sides of the ventilation duct. A cross bar is fixedly connected inside the ventilation duct. The horizontal position of the cross bar is between the two ventilation openings. Both ends of the cross bar are hinged with a telescopic connecting piece. The two ends of the connecting piece are respectively hinged with a fire prevention board Ⅰ and a fire prevention board Ⅱ for closing the two ventilation openings. An electromagnet capable of adsorbing the fire prevention board Ⅰ is fixedly installed on the inner top wall of the ventilation duct. A smoke sensor and a temperature sensor are installed on the outer wall of the cross bar.
[0007] Preferably, the fire prevention board Ⅰ includes an internal counterweight block and a fire prevention board material covering the outside of the internal counterweight block. A permanent magnet is fixedly embedded above the fire prevention board material, and the permanent magnet is directly below the electromagnet.
[0008] Preferably, the total mass of the fire prevention board Ⅱ and the connecting piece is less than the mass of the internal counterweight block.
[0009] Preferably, the connecting piece includes a swivel ring hinged on the cross bar. Two symmetrically arranged square tubes are fixedly arranged on the outer wall of the swivel ring. A limiting plate is slidably arranged inside each of the two square tubes. The inner sides of the two limiting plates are respectively fixedly connected with a sliding rod. One ends of the two sliding rods far away from the square tubes are respectively hinged with the fire prevention board Ⅰ and the fire prevention board Ⅱ.
[0010] Preferably, a spring is fixedly arranged on the side of the limiting plate far away from the sliding rod, and one end of the spring far away from the limiting plate is fixedly connected with the inner wall of the square tube.
[0011] Preferably, sliding grooves are respectively formed at positions on one side of the two ventilation openings inside the ventilation duct. The fireproof board I and the fireproof board II are respectively located in the two sliding grooves, and the fireproof board I and the fireproof board II respectively move linearly up and down along the corresponding sliding grooves.
[0012] Preferably, the fireproof board I and the fireproof board II have equal areas and are larger than the cross-sectional area of the ventilation opening. The fireproof board I and the fireproof board II are in contact with the inner wall of the ventilation duct and completely close the ventilation opening.
[0013] Preferably, dust-proof filters are installed in both of the two ventilation openings.
[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:
[0015] 1. In the present utility model, through the built-in smoke sensor and temperature sensor, the temperature and smoke conditions inside and outside the building can be monitored in real time. Once a fire hazard is detected, a rapid response can be made. Equipped with the fireproof board I and the fireproof board II, the two ventilation openings in the ventilation duct can be effectively closed, ensuring that the ventilation openings can be quickly closed in case of a fire and preventing the spread of the fire.
[0016] 2. In the present utility model, by utilizing the interaction between the electromagnet and the permanent magnet, after the electromagnet is powered off, the fireproof board I will automatically move downward under the action of gravity without manual intervention, improving the fire prevention response speed and efficiency. In case of a fire, even if the circuit is damaged and the controller is powered off, the electromagnet will automatically power off due to the circuit interruption, ensuring that the fireproof board I and the fireproof board II can normally close the ventilation opening, achieving double insurance.
[0017] 3. In the present utility model, through the telescopic and rotatable connecting piece around the cross bar, and in cooperation with the sliding grooves that enable the fireproof board I and the fireproof board II to move linearly up and down, interference during the movement of the fireproof board I and the fireproof board II is avoided, and the situation of deviation or dislocation is avoided, ensuring that the fireproof board I and the fireproof board II can smoothly reach the designated positions. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a three-dimensional structural schematic diagram of a building intelligent fireproof ventilation device proposed by the present utility model;
[0019] Figure 2 is a partial cross-sectional structural schematic diagram of a building intelligent fireproof ventilation device proposed by the present utility model;
[0020] Figure 3 is a magnified structural schematic diagram of part A in a building intelligent fireproof ventilation device proposed by the present utility model Figure 2 in the present utility model;
[0021] Figure 4 The present utility model provides a schematic diagram of the ventilation state of a building intelligent fireproof ventilation device;
[0022] Figure 5 The present utility model provides a schematic diagram of the closed state of the ventilation openings of a building intelligent fireproof ventilation device;
[0023] Figure 6 The present utility model provides a schematic diagram of the sectional structure of a connecting member of a building intelligent fireproof ventilation device.
[0024] Legend: 1. Ventilation duct; 2. Ventilation opening; 3. Cross bar; 4. Connecting member; 41. Rotating ring; 42. Square pipe; 43. Limiting plate; 44. Sliding rod; 45. Spring; 5. Fireproof board I; 51. Built-in counterweight; 52. Fireproof board material; 53. Permanent magnet; 6. Fireproof board II; 7. Electromagnet; 8. Smoke sensor; 9. Temperature sensor; 10. Chute; 11. Dust-proof filter screen. Detailed implementation manners
[0025] In order to more clearly understand the above objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
[0026] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.
[0027] As Figure 1-6 shown, the present utility model provides a building intelligent fireproof ventilation device, including a ventilation duct 1. Two ventilation openings 2 with different heights are arranged on both sides of the ventilation duct 1. A cross bar 3 is fixedly connected inside the ventilation duct 1. The horizontal position of the cross bar 3 is located between the two ventilation openings 2. A connecting member 4 with two telescopic ends is hingedly installed on the outer wall of the cross bar 3. The two ends of the connecting member 4 are respectively hingedly installed with a fireproof board I 5 and a fireproof board II 6 for closing the two ventilation openings 2. An electromagnet 7 capable of adsorbing the fireproof board I 5 is fixedly installed on the inner top wall of the ventilation duct 1. A smoke sensor 8 and a temperature sensor 9 are installed on the outer wall of the cross bar 3. Since the two ventilation openings 2 have different heights, the smoke sensor 8 and the temperature sensor 9 on the cross bar 3 are located between the two ventilation openings 2 like the cross bar 3, ensuring that the air passing through the ventilation duct 1 can be detected.
[0028] In this embodiment, the fireproof board I 5 includes an internal counterweight 51 and a fireproof board material 52 covering the outside of the internal counterweight 51. A permanent magnet 53 is fixedly embedded above the fireproof board material 52, and the permanent magnet 53 is directly below the electromagnet 7. The total mass of the fireproof board II 6 and the connecting member 4 is less than the mass of the internal counterweight 51. When the electromagnet 7 is powered off and no longer adsorbs the permanent magnet 53, due to the large mass of the internal counterweight 51, the fireproof board I 5 moves downward under the action of gravity, and the fireproof board II 6 moves upward through the connecting member 4. The connecting member 4 is telescopic to avoid interference.
[0029] In this embodiment, the connecting member 4 includes a swivel ring 41 hinged to the cross bar 3. Two symmetrically arranged square tubes 42 are fixedly provided on the outer wall of the swivel ring 41. Limiting plates 43 are slidably arranged inside the two square tubes 42. The inner sides of the two limiting plates 43 are respectively fixedly connected with sliding rods 44. The ends of the two sliding rods 44 far from the square tubes 42 are respectively hinged to the fireproof board I 5 and the fireproof board II 6, and the positions of the fireproof board I 5 and the fireproof board II 6 are changed.
[0030] In this embodiment, a spring 45 is fixedly provided on the side of the limiting plate 43 far from the sliding rod 44. The end of the spring 45 far from the limiting plate 43 is fixedly connected with the inner wall of the square tube 42. The sliding rod 44 will squeeze the spring 45 during the sliding process. When the fireproof board I 5 and the fireproof board II 6 reach the required positions, the elastic force of the spring 45 acts on the limiting plate 43, and then plays a role in tightly pressing the fireproof board I 5 and the fireproof board II 6. The gravity of the fireproof board II 6 is less than the elastic force of the spring 45, and the elastic force of the spring 45 can tightly press the fireproof board II 6.
[0031] In this embodiment, chutes 10 are respectively opened at positions inside the ventilation duct 1 on one side of the two ventilation openings 2. The fireproof board I 5 and the fireproof board II 6 are respectively located in the two chutes 10. The fireproof board I 5 and the fireproof board II 6 respectively move up and down linearly along the corresponding chutes 10. The movement of the fireproof board I 5 and the fireproof board II 6 is restricted by the chutes 10, so that the fireproof board I 5 and the fireproof board II 6 can only move linearly up and down, and there will be no deviation or dislocation.
[0032] In this embodiment, the fireproof board I 5 and the fireproof board II 6 have equal areas and are larger than the cross-sectional area of the ventilation opening 2. The fireproof board I 5 and the fireproof board II 6 are in contact with the inner wall of the ventilation duct 1 and completely close the ventilation opening 2. After a fire occurs, the fireproof board I 5 and the fireproof board II 6 respectively form a barrier to the two through holes. Through the two fireproof barrier settings, the entry of the fire can be effectively blocked, and the blocking effect is better.
[0033] In this embodiment, dust-proof filters 11 are installed in both of the two ventilation openings 2. The dust-proof filters 11 can play a role in blocking dust and effectively prevent dust from entering through the ventilation openings 2.
[0034] Usage method and working principle of this device:
[0035] When the device is in use, in its initial state, the electromagnet 7 is energized and adsorbs the permanent magnet 53. That is, the fireproof board I 5 is located above the vent 2 at a lower position, and the fireproof board II 6 is located below the vent 2 at a higher position. The two vents 2 can conduct air circulation between the interior and exterior of the building, and the dust-proof filter 11 blocks dust from entering the vent 2.
[0036] Whether a fire occurs inside or outside the building, through the smoke sensor 8 and the temperature sensor 9, it is possible to sense the temperature and smoke to determine whether a fire has occurred. Once the sensed temperature is too high or there is smoke, the electromagnet 7 can be controlled to cut off the power and no longer adsorb the permanent magnet 53. Under the action of the gravity of the built-in counterweight 51, the fireproof board I 5 moves downward to close the vent 2 at the lower position. At the same time, when the fireproof board I 5 moves downward, the connecting piece 4 expands and contracts and deflects around the cross bar 3. Similar to a seesaw structure, the fireproof board II 6 at the end of the connecting piece 4 away from the fireproof board I 5 is lifted up, and the fireproof board II 6 moves upward to close the vent 2 at the higher position. Through the two fireproof blocking settings of the fireproof board I 5 and the fireproof board II 6, the entry of the fire can be effectively blocked, and the blocking effect is better.
[0037] In the above process, the temperature sensor 9 and the smoke sensor 8 receive signals through the internal controller and control the electromagnet 7 to cut off the power. A fire may cause the circuit to burn out and power off during a fire, resulting in the temperature sensor 9, the smoke sensor 8, and the internal controller losing power and no longer working. At this time, the electromagnet 7 will automatically cut off the power due to circuit damage. Therefore, whether the circuit is damaged or not after a fire occurs, the fireproof board I 5 and the fireproof board II 6 can play a role in blocking the ventilation duct 1.
[0038] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. An intelligent building fire prevention and ventilation device, characterized in that: It includes a ventilation duct (1), on both sides of which there are two ventilation openings (2) with different heights. A cross bar (3) is fixedly connected inside the ventilation duct (1), and the horizontal position of the cross bar (3) is between the two ventilation openings (2). On the outer wall of the cross bar (3), there is a hinged installation of a connecting member (4) with telescopic ends. The two ends of the connecting member (4) are respectively hinged with a fireproof board I (5) and a fireproof board II (6) that close the two ventilation openings (2). An electromagnet (7) capable of adsorbing the fireproof board I (5) is fixedly installed on the inner top wall of the ventilation duct (1). A smoke sensor (8) and a temperature sensor (9) are installed on the outer wall of the cross bar (3).
2. The intelligent fireproof ventilation device for buildings according to claim 1, wherein: The fireproof board I (5) includes an internal counterweight block (51) and a fireproof plate material (52) covering the outside of the internal counterweight block (51). A permanent magnet (53) is fixedly embedded above the fireproof plate material (52), and the permanent magnet (53) is directly below the electromagnet (7).
3. An intelligent building fire prevention and ventilation device according to claim 2, characterized in that: The total mass of the fireproof board II (6) and the connecting member (4) is less than the mass of the internal counterweight block (51).
4. An intelligent building fire prevention and ventilation device according to claim 1, characterized in that: The connecting member (4) includes a swivel ring (41) hinged on the cross bar (3). On the outer wall of the swivel ring (41), there are two symmetrically arranged square tubes (42). Inside each of the two square tubes (42), there is a sliding installation of a limiting plate (43). The inner sides of the two limiting plates (43) are respectively fixedly connected with sliding rods (44). The ends of the two sliding rods (44) away from the square tubes (42) are respectively hinged with the fireproof board I (5) and the fireproof board II (6).
5. The intelligent building fire prevention and ventilation device according to claim 4, characterized in that: On the side of the limiting plate (43) away from the sliding rod (44), there is a fixed installation of a spring (45). The end of the spring (45) away from the limiting plate (43) is fixedly connected with the inner wall of the square tube (42).
6. The intelligent building fire prevention and ventilation device according to claim 1, characterized in that: On one side of the two ventilation openings (2) inside the ventilation duct (1), there are respectively provided chutes (10). The fireproof board I (5) and the fireproof board II (6) are respectively located in the two chutes (10), and the fireproof board I (5) and the fireproof board II (6) respectively move linearly up and down along the corresponding chutes (10).
7. The intelligent building fire prevention and ventilation device according to claim 1, characterized in that: The areas of the fireproof board I (5) and the fireproof board II (6) are equal and larger than the cross-sectional area of the ventilation opening (2). The fireproof board I (5) and the fireproof board II (6) are in contact with the inner wall of the ventilation duct (1) and completely close the ventilation opening (2).
8. An intelligent building fire prevention and ventilation device according to claim 1, characterized in that: Dust-proof filters (11) are installed in both of the two ventilation openings (2).