A comprehensive pipe gallery intelligent management fire detection device
By using the integrated utility tunnel intelligent management fire detection device, which utilizes motor-adjusted air intake grilles and modules working in tandem, the problems of time-consuming installation, easy corrosion, and insufficient remote alarm of existing devices have been solved. This has enabled efficient and accurate fire detection and remote alarm, reducing fire losses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CANGZHOU BOHAI NEW DISTRICT XINCHENG REAL ESTATE DEVELOPMENT CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-05-29
AI Technical Summary
Existing automatic fire alarm devices for utility tunnels are time-consuming and labor-intensive to install, have a simple structure, cannot provide timely remote alarms, and are susceptible to electrochemical corrosion, resulting in poor fire detection performance.
A smart fire detection device for integrated utility tunnel management was designed, comprising a fire alarm control host, a protective mechanism, a camera module, a smoke detector, a buzzer, and a wireless communication module. It works in concert with a PLC control board to achieve remote alarm and protection functions, and uses a motor to adjust the opening and closing of the air intake grille to protect the internal electrical components.
It enables efficient and accurate fire detection and remote alarm, protects equipment safety, reduces fire losses, and improves the applicability and reliability of fire detection.
Smart Images

Figure CN224304223U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire detection equipment technology, specifically a fire detection device for intelligent management of integrated utility tunnels. Background Technology
[0002] As the underground "lifeline" of the city, the integrated utility tunnel houses various municipal pipelines such as electricity, communication, and gas. Once a fire occurs, it can easily trigger a chain of accidents. However, the intelligent management fire detection device can achieve accurate early warning and intelligent management of fires in the utility tunnel by integrating multiple technologies.
[0003] Existing automatic fire alarm devices for utility tunnels require a large number of bolts or rivets for installation and fixation. This method is time-consuming and labor-intensive, inconvenient for users, and due to its simple structure, it cannot provide timely remote alarms to users in the event of a fire, nor can it transmit on-site images, making it difficult for users to understand the fire situation. This reduces the applicability of automatic fire alarm devices for utility tunnels. In view of this, a comprehensive intelligent management fire detection device for utility tunnels is proposed.
[0004] Most existing fire alarm control panels use air inlets for heat exchange. During combustion, acidic gases (such as SO2, NO2, and organic acids) in the smoke combine with water vapor to form an acidic solution that adheres to metal contacts, wires, chip pins, and other parts, causing electrochemical corrosion. This increases contact resistance, leading to poor circuit contact or open circuits, resulting in poor fire detection performance. In view of this, a smart fire detection device for integrated utility tunnel management is proposed. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a smart fire detection device for integrated utility tunnels, which solves the problem of poor fire prevention effectiveness in integrated utility tunnels.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a fire detection device for intelligent management of integrated utility tunnels, including a fire alarm control host, wherein air inlet grilles are fixedly installed on the inner surfaces of both sides of the fire alarm control host.
[0009] The fire alarm control host is equipped with a protective mechanism, which includes a motor, a fixed rod, a sliding roller, a collar, a vertical plate, a rotating roller, a support rod, a fixed roller, and a baffle.
[0010] Preferably, the two motors are respectively fixedly mounted on the upper surface of the two air inlet grilles, and the two fixing rods are respectively fixedly sleeved on the outer surface of the output shafts of the two motors;
[0011] Two sliding rollers are fixedly sleeved on the inner surfaces of two fixed rods.
[0012] Preferably, the two collars are slidably sleeved on the outer surfaces of the two sliding rollers, and the two upright plates are fixedly installed on the lower surfaces of the two collars.
[0013] Preferably, the plurality of rotating rollers are respectively rotatably sleeved on the inner surfaces of the two vertical plates, and the plurality of support rods are respectively rotatably sleeved on the outer surfaces of the plurality of rotating rollers.
[0014] Preferably, the plurality of fixed rollers are respectively fixedly sleeved on the inner surface of the plurality of support rods, and the right ends of the plurality of fixed rollers are respectively rotatably connected to the inner surface of the two air inlet grilles;
[0015] Multiple baffles are fixedly sleeved on the outer surface of multiple fixed rollers.
[0016] Preferably, the protective mechanism further includes a PLC control board and a wireless communication module, with the PLC control board fixedly installed on the upper surface of the fire alarm control host base plate;
[0017] The wireless communication module is fixedly installed on the inner surface of the wireless communication module stand plate, and the wireless communication module is electrically connected to the PLC control board.
[0018] Preferably, the protective mechanism further includes a camera module, a smoke detector, and a buzzer. The camera module is fixedly installed on the lower surface of the fire alarm control host and is electrically connected to the PLC control board. The smoke detector is fixedly installed on the lower surface of the fire alarm control host and is electrically connected to the PLC control board.
[0019] The buzzer is fixedly installed on the right surface of the fire alarm control host panel and is electrically connected to the PLC control board.
[0020] (III) Beneficial Effects
[0021] Compared with the prior art, this utility model provides a fire detection device for intelligent management of integrated utility tunnels, which has the following beneficial effects:
[0022] 1. In the event of a fire or other abnormal situation, the PLC control board of this integrated utility tunnel intelligent management fire detection device starts the motor, which drives the fixed rod to rotate, causing the collar to slide along the sliding roller, thereby moving the vertical plate and ultimately rotating the baffle to block or open the air intake grille. This mechanism can adjust the ventilation according to the actual situation, which can prevent smoke or fire from entering the device through the air intake grille and damaging its internal electrical components when a fire spreads, protect the safety of the equipment, and ensure ventilation when necessary to maintain the normal operation of the device.
[0023] 2. This integrated utility tunnel intelligent management fire detection device achieves efficient and accurate fire detection through the coordinated operation of a camera module, smoke detector, and PLC control board. The camera module collects real-time image information inside the utility tunnel, while the smoke detector monitors the smoke concentration in the air. Both transmit the data to the PLC control board. Once an anomaly is detected, the PLC control board immediately controls the buzzer to sound an alarm and simultaneously transmits the alarm information remotely via a wireless communication module. This ensures that staff can be informed of the fire situation as soon as possible, gaining valuable time for fire fighting and reducing the losses caused by the fire. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of a smart management fire detection device for integrated utility tunnels according to this utility model;
[0025] Figure 2 This is a schematic diagram of the internal structure of the fire alarm control host of this utility model;
[0026] Figure 3 This is a schematic diagram of the internal structure of the fire alarm control host of this utility model;
[0027] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.
[0028] In the diagram: 1. Fire alarm control host; 2. Camera module; 3. Smoke detector; 4. Buzzer; 5. Air intake grille; 6. PLC control board; 7. Wireless communication module; 8. Motor; 9. Fixed rod; 10. Sliding roller; 11. Collar; 12. Vertical plate; 13. Rotating roller; 14. Support rod; 15. Fixed roller; 16. Baffle. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figure 1-4 This utility model provides a new technical solution: a fire detection device for intelligent management of integrated utility tunnels, including a fire alarm control host 1, and air inlet grilles 5 are fixedly installed on the inner surfaces of the two side uprights of the fire alarm control host 1.
[0031] The fire alarm control host 1 is equipped with a protective mechanism, which includes a motor 8, a fixed rod 9, a sliding roller 10, a collar 11, a vertical plate 12, a rotating roller 13, a support rod 14, a fixed roller 15, and a baffle 16.
[0032] Furthermore, the two motors 8 are respectively fixedly installed on the upper surface of the two air inlet grilles 5, and the two fixing rods 9 are respectively fixedly sleeved on the outer surface of the output shaft of the two motors 8;
[0033] Two sliding rollers 10 are respectively fixedly sleeved on the inner surfaces of two fixed rods 9.
[0034] Furthermore, the two collars 11 are slidably sleeved on the outer surfaces of the two sliding rollers 10, and the two upright plates 12 are fixedly installed on the lower surfaces of the two collars 11.
[0035] Furthermore, multiple rotating rollers 13 are respectively rotatably sleeved on the inner surfaces of the two upright plates 12, and multiple support rods 14 are respectively rotatably sleeved on the outer surfaces of the multiple rotating rollers 13.
[0036] Furthermore, multiple fixed rollers 15 are respectively fixedly sleeved on the inner surface of multiple support rods 14, and the right ends of multiple fixed rollers 15 are respectively rotatably connected to the inner surface of two air inlet grilles 5.
[0037] Multiple baffles 16 are respectively fixedly sleeved on the outer surface of multiple fixed rollers 15.
[0038] Furthermore, the protective mechanism also includes a PLC control board 6 and a wireless communication module 7. The PLC control board 6 is fixedly installed on the upper surface of the base plate of the fire alarm control host 1.
[0039] The wireless communication module 7 is fixedly installed on the inner surface of the vertical plate of the wireless communication module 7, and the wireless communication module 7 is electrically connected to the PLC control board 6.
[0040] Furthermore, the protective mechanism also includes a camera module 2, a smoke detector 3, and a buzzer 4. The camera module 2 is fixedly installed on the lower surface of the fire alarm control host 1 and is electrically connected to the PLC control board 6. The smoke detector 3 is fixedly installed on the lower surface of the fire alarm control host 1 and is electrically connected to the PLC control board 6.
[0041] Among them, the buzzer 4 is fixedly installed on the right surface of the fire alarm control host 1, and the buzzer 4 is electrically connected to the PLC control board 6.
[0042] This integrated utility tunnel intelligent management fire detection device achieves fire detection and protection functions through the coordinated operation of various functional modules and the PLC control board 6. The camera module 2 collects real-time image information within the utility tunnel, and the smoke alarm 3 monitors the smoke concentration in the air. Both transmit data to the PLC control board 6. When an abnormality is detected, the PLC control board 6 controls the buzzer 4 to sound an alarm and simultaneously transmits the alarm information remotely via the wireless communication module 7. At the same time, the PLC control board 6 can control the motor 8 in the protection mechanism to start, realizing the protective adjustment of the air intake grille 5. When the protection mechanism is activated, the output shaft of motor 8... The rotation drives the fixed rod 9 to rotate, which in turn drives the sliding roller 10 to rotate. The rotation of the sliding roller 10 causes the collar 11, which is sleeved on its outer surface, to slide along the surface of the sliding roller 10. The collar 11 drives the vertical plate 12 on the lower surface to move. When the vertical plate 12 moves, the rotating roller 13 inside it moves accordingly. The rotating roller 13 drives the support rod 14 to rotate around the rotating roller 13 as the fulcrum. The fixed roller 15 at the other end of the support rod 14 rotates around the right end connected to the air inlet grille 5 as the fulcrum under the drive of the support rod 14. The rotation of the fixed roller 15 then drives the baffle 16 to rotate, so that the baffle 16 can block or open the air inlet grille 5, thus completing the protective adjustment movement.
[0043] This integrated utility tunnel intelligent management fire detection device, in the event of a fire or other abnormal situation, activates motor 8 via PLC control board 6. Motor 8 drives fixed rod 9 to rotate, causing collar 11 to slide along sliding roller 10, which in turn moves vertical plate 12, ultimately rotating baffle 16 to block or open air intake grille 5. This mechanism can adjust ventilation according to actual conditions, preventing smoke or fire from entering the device through the air intake grille and damaging its internal electrical components during fire spread, protecting equipment safety, and ensuring ventilation when necessary to maintain normal operation of the device. The intelligent fire detection device for utility tunnels achieves efficient and accurate fire detection through the coordinated operation of camera module 2, smoke detector 3, and PLC control board 6. Camera module 2 collects real-time image information inside the utility tunnel, while smoke detector 3 monitors the smoke concentration in the air. Both transmit the data to PLC control board 6. Once an anomaly is detected, PLC control board 6 immediately controls buzzer 4 to sound an alarm. At the same time, alarm information is remotely transmitted via wireless communication module 7, ensuring that staff can be informed of the fire situation as soon as possible, gaining valuable time for fire fighting and reducing the losses caused by the fire.
[0044] Structural Description:
[0045] Fire alarm control host 1: As the core of the entire device, it is the basic carrier for the operation of various components. It is used to install and accommodate other detection, control and protection components, coordinate the collaborative work of various modules, and realize the unified management of monitoring, alarm and protection functions for fire situations in the integrated utility tunnel.
[0046] Camera module 2: Fixedly installed on the lower surface of the fire alarm control host 1, it captures real-time images of the integrated pipe gallery, uses image recognition technology to detect fire signs such as flames and abnormally high temperature areas, and transmits the video signal to the PLC control board 6 for analysis and processing, providing intuitive evidence for fire early warning.
[0047] Smoke detector 3: Fixedly installed on the lower surface of the fire alarm control host 1, used to detect the smoke concentration in the environment. When the smoke concentration reaches or exceeds the set threshold, it immediately sends an alarm signal to the PLC control board 6 so as to activate alarm and protection measures in a timely manner and realize early fire warning.
[0048] Buzzer 4: Fixedly installed on the right surface of the fire alarm control panel 1, and electrically connected to the PLC control board 6. Upon receiving an alarm command from the PLC control board 6, it emits a loud alarm sound to alert on-site personnel to the fire situation so that timely response measures can be taken.
[0049] Air intake grille 5: Installed on the inner surface of the upright plates on both sides of the fire alarm control host 1. Its main function is to provide an air circulation channel for the inside of the device, ensure normal heat dissipation of internal electronic components, and work with the baffle 16 in the protective mechanism to open and close when needed to adjust the ventilation volume and prevent foreign objects from entering.
[0050] PLC control board 6: Fixedly installed on the upper surface of the base plate of the fire alarm control host 1, it is the control brain of the entire device. It receives signals from components such as camera module 2 and smoke detector 3, and after analysis and processing, controls components such as motor 8 and buzzer 4 to work, realizing automated control of fire detection and protection.
[0051] Wireless communication module 7: Fixedly installed on the inner surface of the vertical plate, electrically connected to the PLC control board 6, responsible for transmitting fire information, operating status and other data detected by the device to the remote management platform wirelessly, so that managers can keep abreast of the fire situation in the integrated utility tunnel and realize remote monitoring and management.
[0052] Motor 8: There are two motors, fixed on the upper surface of the air inlet grille 5, which are the power source of the protective mechanism. By rotating the output shaft, the fixed rod 9, sliding roller 10 and other components are driven to operate, thereby controlling the opening and closing of the baffle 16 and realizing the switching between ventilation and protection states of the air inlet grille 5.
[0053] Fixed rod 9: It is fixedly sleeved on the outer surface of the output shaft of motor 8, which transmits the power of motor 8 to sliding roller 10 and drives sliding roller 10 to rotate synchronously. It plays the role of a bridge connecting motor 8 and sliding roller 10 in the whole transmission system, ensuring the stability of power transmission.
[0054] Sliding roller 10: It is fixedly sleeved on the inner surface of the fixed rod 9 and rotates synchronously with the fixed rod 9. It provides a sliding track for the collar 11. Its rotation enables the collar 11 to move axially, thereby driving the vertical plate 12 and other components to move, realizing the mechanical linkage of the protective mechanism.
[0055] The collar 11 is slidably sleeved on the outer surface of the sliding roller 10 and can move along the axial direction of the sliding roller 10. It drives the vertical plate 12 fixed on its lower surface to rise and fall through its own sliding motion. It is a key component connecting the sliding roller 10 and the vertical plate 12 and transmits mechanical motion.
[0056] Vertical plate 12: Fixed to the lower surface of collar 11, it rises and falls with the movement of collar 11, serving as a support structure for components such as rotating roller 13, providing a basis for installation and operation for the subsequent rotation of baffle 16, and ensuring the stability of the protective mechanism.
[0057] Rotating roller 13: Multiple rotating sleeves are mounted on the inner surface of the vertical plate 12 and can rotate around their own axis. By cooperating with the support rod 14, the movement of the vertical plate 12 is converted into the rotation of the fixed roller 15, thereby driving the baffle 16 to move and realize the opening and closing control of the air inlet grille 5.
[0058] Support rod 14: Rotary sleeve on the outer surface of rotating roller 13, connecting rotating roller 13 and fixed roller 15, transmitting the rotational power of rotating roller 13 to fixed roller 15, and at the same time supporting and fixing fixed roller 15 to ensure the continuity of power transmission.
[0059] Fixed roller 15: It is fixedly sleeved on the inner surface of the support rod 14, and its right end is rotatably connected to the air inlet grille 5 to ensure rotational stability. Through its own rotation, it drives the baffle 16 fixed on its outer surface to open and close, thereby realizing the protection and ventilation adjustment functions of the air inlet grille 5.
[0060] Baffle 16: It is fixedly sleeved on the outer surface of the fixed roller 15 and opens and closes as the fixed roller 15 rotates. When ventilation is not required, the air inlet grille 5 can be closed to prevent dust and foreign objects from entering the device. During normal operation, it is opened to ensure ventilation and heat dissipation, and plays a protective and regulating role.
[0061] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fire detection device for intelligent management of integrated utility tunnels, comprising a fire alarm control host (1), characterized in that: The inner surfaces of the two side panels of the fire alarm control host (1) are fixedly installed with air intake grilles (5); The fire alarm control host (1) is equipped with a protective mechanism, which includes a motor (8), a fixed rod (9), a sliding roller (10), a collar (11), a vertical plate (12), a rotating roller (13), a support rod (14), a fixed roller (15), and a baffle (16).
2. The integrated utility tunnel intelligent management fire detection device according to claim 1, characterized in that: The two motors (8) are respectively fixedly installed on the upper surface of the two air inlet grilles (5), and the two fixing rods (9) are respectively fixedly sleeved on the outer surface of the output shaft of the two motors (8); Two sliding rollers (10) are fixedly sleeved on the inner surfaces of two fixed rods (9).
3. The integrated utility tunnel intelligent management fire detection device according to claim 1, characterized in that: The two collars (11) are slidably sleeved on the outer surfaces of the two sliding rollers (10), and the two upright plates (12) are fixedly installed on the lower surfaces of the two collars (11).
4. The integrated utility tunnel intelligent management fire detection device according to claim 1, characterized in that: Multiple rotating rollers (13) are respectively rotatably sleeved on the inner surface of two vertical plates (12), and multiple support rods (14) are respectively rotatably sleeved on the outer surface of multiple rotating rollers (13).
5. The integrated utility tunnel intelligent management fire detection device according to claim 1, characterized in that: Multiple fixed rollers (15) are respectively fixedly sleeved on the inner surface of multiple support rods (14), and the right ends of multiple fixed rollers (15) are respectively rotatably connected to the inner surface of two air inlet grilles (5); Among them, multiple baffles (16) are respectively fixedly sleeved on the outer surface of multiple fixed rollers (15).
6. The integrated utility tunnel intelligent management fire detection device according to claim 1, characterized in that: The protective mechanism also includes a PLC control board (6) and a wireless communication module (7). The PLC control board (6) is fixedly installed on the upper surface of the base plate of the fire alarm control host (1). The wireless communication module (7) is fixedly installed on the inner surface of the vertical plate of the wireless communication module (7), and the wireless communication module (7) is electrically connected to the PLC control board (6).
7. The integrated utility tunnel intelligent management fire detection device according to claim 1, characterized in that: The protective mechanism also includes a camera module (2), a smoke alarm (3) and a buzzer (4). The camera module (2) is fixedly installed on the lower surface of the fire alarm control host (1) and is electrically connected to the PLC control board (6). The smoke alarm (3) is fixedly installed on the lower surface of the fire alarm control host (1) and is electrically connected to the PLC control board (6). Among them, the buzzer (4) is fixedly installed on the right surface of the fire alarm control host (1) and is electrically connected to the PLC control board (6).