A mobile fire detection and alarm device for underground enclosed spaces

Abstract

The present invention discloses a mobile fire detection and alarm device for underground enclosed spaces, which includes a mobile robot, a fire detection unit arranged on the mobile robot, and a fire alarm unit; the fire detection unit includes a sensing component for detecting temperature, smoke, and visual imaging; the fire alarm unit includes an audible and visual alarm; the fire detection unit is connected to a processing unit, and the processing unit controls the actions of the mobile robot and the fire alarm unit. The mobile fire detection and alarm device for underground enclosed spaces has a simple structure, not only realizes dynamic monitoring of the fire source in all directions, avoids false alarms and missed alarms caused by the installation environment or other obstacles, but also realizes a rapid response to the fire, facilitating timely handling by personnel.

Description

Technical Field

[0001] The present invention relates to the field of fire detection, and particularly to a mobile fire detection and alarm device for underground enclosed spaces. Background Art

[0002] The advancement of urbanization has accelerated the continuous development of underground spaces, and the development model of subway commercial complexes is becoming more and more diverse, making the fire safety issues faced by underground spaces increasingly attracting attention.

[0003] Currently, fire detection and alarm devices for public places such as subways are mainly divided into two categories. One is a fixed fire detection and alarm device, which installs the detection alarm at a fixed position and uses a temperature detection alarm or a smoke detection alarm to monitor the surrounding fire situation. However, the monitoring range of this type of alarm device is limited, and it cannot immediately feedback the fire situation after the alarm to assist in decision-making and rescue. Moreover, multiple devices need to be installed within a certain range, which is not cost-effective. The other is a fire detection and extinguishing system, which realizes the monitoring and early warning of fires and the fire fighting linkage disposal through the comprehensive action of subsystems. However, this type of system is generally complex and mostly set for a certain special scenario, and there are still deficiencies in its application in the TOD mode. Summary of the Invention

[0004] The purpose of the present invention is to provide a mobile fire detection and alarm device for underground enclosed spaces, which has a simple structure and can not only dynamically monitor the fire source in all directions, avoid false alarms and missed alarms caused by the installation environment or other obstacles, but also achieve a rapid response to fires and facilitate personnel to handle them in a timely manner.

[0005] To achieve the above purpose, a mobile fire detection and alarm device for underground enclosed spaces of the present invention includes a mobile robot, a fire detection unit arranged on the mobile robot, and a fire alarm unit;

[0006] The fire detection unit includes an induction component for detecting temperature, smoke, and visual imaging; the fire alarm unit includes an audible and visual alarm.

[0007] The fire detection unit is connected to a processing unit, and the processing unit controls the actions of the mobile robot and the fire alarm unit.

[0008] Further, the processing unit includes a memory for storing corresponding instructions, an encoder for converting signals or data into those for communication transmission, and a processor for information processing.

[0009] Further, a power supply component for supplying power to the fire detection unit, the fire alarm unit, and the processing unit is arranged on the mobile robot;

[0010] The fire alarm unit further includes an emergency lighting lamp and a wireless communication module for transmitting signals to an information center or a mobile terminal.

[0011] Further, the mobile robot includes a mobile body and a pair of support frames fixed on the mobile body and located on both sides of the support track.

[0012] Each support frame is provided with a driving component and a pressing component for clamping the upper and lower tracks correspondingly.

[0013] The driving component includes a driving motor fixedly installed on the support frame and a driving roller fixedly connected to the output end of the driving motor.

[0014] The pressing component includes a pressing roller rotatably installed on the support frame and elastically contacting the support track.

[0015] Further, the pressing component further includes a limiting shaft vertically installed on the mobile body, a spring sleeved on the limiting shaft, and an adjusting nut threadedly installed on the limiting shaft and located below the spring.

[0016] The pressing roller is rotatably installed at one end of a support shaft. The middle of the support shaft is fixed on a slider, and the other end contacts the spring and is subjected to its elastic force. The slider slides up and down on the support frame.

[0017] Further, a plurality of limiting balls arranged up and down are rotatably provided on one side of the support frame close to the support track.

[0018] Further, there are a pair of mobile robots, and adjacent mobile robots are connected by a telescopic skeleton component.

[0019] Further, the skeleton component includes a pair of fixing frames respectively arranged on adjacent mobile bodies and a plurality of support rings arranged in parallel between the pair of fixing frames.

[0020] A support rod is provided between adjacent support rings. The middle of the support rod is rotated into a V-shaped structure, and both ends are respectively rotatably installed on the corresponding support rings.

[0021] Compared with the prior art, since the mobile fire detection and alarm device for an underground enclosed space of the present invention includes a mobile robot, a fire detection unit provided on the mobile robot, and a fire alarm unit, the mobile robot patrols the surrounding environment according to a set route, monitors the surrounding environment in real time through a monitoring camera, and the temperature sensor and smoke sensor detect the temperature and smoke respectively. Therefore, it realizes all-round monitoring of the fire source, prevents false alarms and missed alarms of traditional detectors caused by space or other obstacles. In addition, the signal is transmitted to the information center or the mobile terminal through the wireless communication module, and relevant personnel can judge the location and severity of the fire according to the actual situation and experience, and take immediate measures to prevent the accident from expanding. Therefore, it realizes a rapid response to the fire and is convenient for personnel to handle in time;

[0022] Since the pressing component in the mobile robot includes a limiting shaft, a spring sleeved on the limiting shaft, and an adjusting nut, by rotating the adjusting nut, it axially moves on the limiting shaft to adjust the elastic force of the other end of the spring acting on the support shaft, so that the pressing roller is in elastic contact with the support track. Without affecting the main driving rotation of the driving roller, the elastic contact effectively avoids the situation of jamming when the mobile robot moves on the support track, making it more stable and applicable to support tracks with different cross-sectional structures; In addition, a plurality of limiting balls arranged up and down are rotatably provided on the support frame, and the limiting balls can be in rolling contact with the end face of the support track to realize its limitation and avoid excessive swing amplitude, which is applicable to the complex environment of the underground enclosed space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the connection flow chart of the fire detection unit and the fire alarm unit of the present invention;

[0024] Figure 2 is the front view of the mobile robot of the present invention;

[0025] Figure 3 is the left view of the mobile robot of the present invention;

[0026] In the figure: 1, support track; 2, mobile body; 3, support frame; 31, limiting ball; 4, drive assembly; 41, drive motor; 42, drive roller; 5, pressing assembly; 51, pressing roller; 52, slider; 53, support shaft; 54, spring; 55, limiting shaft; 56, adjusting nut; 6, power supply assembly; 71, fixing frame; 72, support rod; 73, support ring. DETAILED DESCRIPTION OF THE INVENTION

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] As Figure 1 、 Figure 2As shown in the figure, a mobile fire detection and alarm device for an underground enclosed space includes a mobile robot, a fire detection unit arranged on the mobile robot, and a fire alarm unit;

[0029] The fire detection unit includes an induction component for detecting temperature, smoke, and visual imaging; the fire alarm unit includes an audible and visual alarm;

[0030] The fire detection unit is connected to a processing unit, and the processing unit controls the actions of the mobile robot and the fire alarm unit;

[0031] Specifically, the fire alarm unit is used to respond to fire information. The fire detection unit judges whether to trigger according to the ambient temperature and smoke concentration. The induction component can be a temperature sensor for detecting the temperature, a smoke sensor for detecting the smoke concentration, and a monitoring camera for visual imaging. For example, under the action of the air conditioning system in the subway, the ambient temperature generally maintains in a relatively comfortable range. The temperature sensor detects the ambient temperature in real time. When the detected ambient temperature is higher than the set range, it transmits the signal to the processing unit;

[0032] The processing unit includes a memory, an encoder, and a processor for information processing. The memory is used to store corresponding instructions and induction signal data for subsequent personnel to view. The encoder is mainly a device that compiles and converts signals or data into signal forms that can be used for communication, transmission, and storage. The processor can adopt control programs such as PLC and computer. Its output instructions not only control the start, stop, and reverse movement of the mobile robot, but also control the opening and closing of the fire alarm unit. For example, the processor encodes the movement route of the mobile robot to realize its movement within a predetermined trajectory route;

[0033] In the normal standby state, the mobile robot patrols the surrounding environment according to the set route, adjusts the temperature and smoke concentration data on the processing unit. For example, the temperature is set to 50°C and the smoke concentration is set to 100bs. The monitoring camera monitors the surrounding environment in real time and can input the monitoring data into the processing unit for video analysis to capture the combustion points of possible combustion phenomena;

[0034] When the mobile robot moves to a certain position and the fire detection unit detects abnormal temperature or smoke, such as when the temperature and smoke exceed the set values, it transmits the signal to the processing unit. The mobile robot will enter an emergency state, and the processing unit controls the audible and visual alarm to emit an alarm signal.

[0035] Furthermore, a power supply component 6 for supplying power to the fire detection unit, the fire alarm unit, and the processing unit is arranged on the mobile robot;

[0036] The fire alarm unit further includes an emergency lighting lamp and a wireless communication module for transmitting signals to an information center or a mobile terminal;

[0037] Specifically, after a fire occurs, the processing unit controls the emergency lighting lamp to turn on to provide temporary lighting at the scene;

[0038] The power supply component 6 can be powered by a lithium battery pack or mains electricity. When powered by a lithium battery pack, the lithium battery pack is provided with a charging port, and an identification component and a fast-lifting charging connector are provided at a certain position on the moving path of the mobile robot. For example, when the power in the lithium battery pack is low, the mobile robot moves to the identification component and stops, and the charging connector quickly moves to charge the lithium battery pack; the wireless communication module can adopt a 5G mobile communication module;

[0039] When the fire detection unit detects a fire, it transmits signals to an information center, or mobile terminals such as a computer or a mobile phone through the wireless communication module. Relevant personnel can judge the location and severity of the fire according to the actual situation and experience, and take immediate measures to prevent the accident from expanding.

[0040] Exemplarily, the mobile robot includes a mobile body 2 and a pair of support frames 3 fixed on the mobile body 2 and located on both sides of the support track 1;

[0041] Each support frame 3 is provided with a driving component 4 and a pressing component 5 for clamping the upper and lower tracks correspondingly;

[0042] The driving component 4 includes a driving motor 41 fixedly installed on the support frame 3 and a driving roller 42 fixedly connected to the output end of the driving motor 41;

[0043] The pressing component 5 includes a pressing roller 51 rotatably installed on the support frame 3 and elastically contacting the support track 1;

[0044] Specifically, to avoid conflicts between the mobile robot and other devices when moving on the ground, preferably, the support track 1 is suspended. Taking its cross-section as an I-shaped structure as an example, the driving component 4 and the pressing component 5 on the same side clamp the lower end of one side of the support track 1, that is, the driving roller 42 in the driving component 4 and the pressing roller 51 in the pressing component 5 clamp the support track 1, avoiding derailment problems during the movement of the mobile robot. The driving motor 41 is started to drive the driving roller 42 to rotate, realizing the movement of the mobile body 2 on the support track 1. In addition, the fire detection unit, the fire alarm unit, and the processing unit can all be arranged on the mobile body 2;

[0045] In addition, the corresponding driving motor 41 can be connected to the processing unit, and the start and stop of the driving motor 41 are controlled through a PLC or a computer to ensure its smooth movement on the support track 1. The steering of the mobile body 2 can be realized by the speed difference between a pair of driving motors 41;

[0046] Further, the pressing assembly 5 further includes a limiting shaft 55 vertically installed on the moving body 2, a spring 54 sleeved on the limiting shaft 55, and an adjusting nut 56 threadedly installed on the limiting shaft 55 and located below the spring 54;

[0047] The pressing roller 51 is rotatably installed at one end of the support shaft 53. The support shaft 53 is arranged on a slider 52 that slides up and down on the support frame 3, and the other end is in contact with the spring 54 and is subjected to its elastic force;

[0048] Specifically, a strip-shaped groove is provided on the support frame 3, and the slider 52 is slidably arranged in the strip-shaped groove. That is, grooves with a width greater than the thickness of the strip-shaped groove are provided on both sides of the slider 52, so that the slider 52 can slide in the strip-shaped groove in a matching manner;

[0049] Elastic pressing is achieved by the pressing roller 51 contacting the support track 1. That is, by rotating the adjusting nut 56, the adjusting nut 56 axially moves on the limiting shaft 55, compresses and releases the spring 54, and adjusts the elastic force exerted by the other end of the spring 54 on the support shaft 53. After the support shaft 53 is subjected to the elastic force, it moves on the support frame 3 through the slider 52, so that the pressing roller 51 elastically contacts the support track 1;

[0050] When the pressing roller 51 and the driving roller 42 act on the support track 1 together, without affecting the main driving rotation of the driving roller 42, the elastic contact method effectively avoids the situation of jamming when the mobile robot moves on the support track 1, is more stable, and is applicable to support tracks 1 with different cross-sectional structures.

[0051] Further, a plurality of limiting balls 31 arranged up and down are rotatably provided on one side of the support frame 3 close to the support track 1;

[0052] When the mobile robot moves on the support track 1 and swings perpendicular to the moving direction, at this time, the limiting balls 31 can rollingly contact the end face of the support track 1 to realize its limiting, avoid excessive swing amplitude, and are applicable to the complex environment of the underground enclosed space.

[0053] As Figure 3 shown, further, there are a pair of mobile robots, and adjacent mobile robots are connected by a telescopic skeleton assembly;

[0054] Specifically, the skeleton assembly can be a traditional telescopic structure, such as a telescopic hose. Conductors can be passed through the telescopic hose to connect with the processing units in a pair of mobile robots to realize their mutual linkage;

[0055] For example, for the convenience of description, taking the left - right connection of a pair of mobile robots as an example, when moving left, the drive motor 41 in the left mobile robot starts, and pulls the right mobile robot to move through the skeleton assembly. Moreover, the skeleton assembly can be telescoped, that is, the distance between adjacent mobile robots increases, so that the fire detection units on the corresponding mobile robots detect different areas; when moving right, the drive motor 41 in the right mobile robot starts and the drive motor 41 in the left mobile robot shuts down, thus realizing rapid reverse movement, saving the corresponding energy consumption, and being applicable to the support track 1 arranged in a straight line.

[0056] Furthermore, the skeleton assembly includes a pair of fixing frames 71 respectively arranged on adjacent mobile bodies 2, and a plurality of support rings 73 arranged in parallel between the pair of fixing frames 71;

[0057] A support rod 72 is arranged between adjacent support rings 73. The middle of the support rod 72 is rotated into a V - shaped structure, and both ends are respectively rotatably installed on the corresponding support rings 73;

[0058] By adjusting the distance between the plurality of support rings 73, the adjacent mobile bodies 2 are made to approach and move away from each other, ensuring the telescopic connection between them.

[0059] When the mobile fire detection and alarm device for an underground enclosed space of the present invention is in use, the mobile robot patrols the surrounding environment according to the set route, adjusts the temperature and smoke concentration data on the processing unit, and the monitoring camera monitors the surrounding environment in real - time. It can not only monitor the fire source in all directions, prevent false alarms and missed alarms of traditional detectors caused by space or other obstacles, but also realize all - around and non - dead - angle dynamic monitoring of the fire situation;

[0060] When the mobile robot moves to a certain position and the fire detection unit detects abnormal temperature or smoke, such as when the temperature or smoke exceeds the set value, it transmits the signal to the processing unit, improving the reliability of fire monitoring and effectively avoiding missed alarms. The mobile robot will enter an emergency state, and the processing unit controls the sound and light alarm to emit an alarm signal; the signal is transmitted to the information center, or mobile terminals such as computers and mobile phones through the wireless communication module. Relevant personnel can judge the location and severity of the fire according to the actual situation and experience, and take immediate measures to prevent the accident from expanding.

[0061] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

Claims

1. A mobile fire detection and alarm device for underground enclosed spaces, characterized in that, It includes a mobile robot, a fire detection unit provided on the mobile robot, and a fire alarm unit; The fire detection unit includes a sensing component for detecting temperature, smoke, and visual imaging; the fire alarm unit includes an audible and visual alarm; The fire detection unit is connected to a processing unit, and the processing unit controls the actions of the mobile robot and the fire alarm unit; The mobile robot includes a mobile body (2), and a pair of support frames (3) fixed on the mobile body (2) and located on both sides of the support track (1); Each support frame (3) is provided with a driving component (4) and a pressing component (5) for clamping the upper and lower tracks correspondingly; The driving component (4) includes a driving motor (41) fixedly installed on the support frame (3), and a driving roller (42) fixedly connected to the output end of the driving motor (41); The pressing component (5) includes a pressing roller (51) rotatably installed on the support frame (3) and elastically contacting the support track (1); There are a pair of mobile robots, and adjacent mobile robots are connected by a telescopic skeleton component; The skeleton component includes a pair of fixing frames (71) respectively provided on adjacent mobile bodies (2), and a plurality of support rings (73) arranged in parallel between the pair of fixing frames (71); A support rod (72) is provided between adjacent support rings (73), the middle of the support rod (72) is rotated into a V-shaped structure, and both ends are rotatably installed on the corresponding support rings (73); If the two mobile robots are connected left and right, when moving to the left, the driving motor (41) of the relatively left mobile robot starts, and pulls the relatively right mobile robot to move through the skeleton component. At this time, the skeleton component extends, and the distance between the two mobile robots increases, so that the fire detection units on the corresponding mobile robots detect different areas; when moving to the right, the driving motor (41) of the relatively right mobile robot starts, and the driving motor (41) of the relatively left mobile robot is turned off to achieve rapid reverse movement.

2. The mobile fire detection and alarm device for underground enclosed spaces according to claim 1, wherein The processing unit includes a memory for storing corresponding instructions, an encoder for converting signals or data into those for communication transmission, and a processor for information processing.

3. The mobile fire detection and alarm device for an underground enclosed space according to claim 2, wherein, A power supply component (6) for supplying power to the fire detection unit, the fire alarm unit, and the processing unit is provided on the mobile robot; The fire alarm unit further includes an emergency lighting lamp and a wireless communication module for transmitting signals to an information center or a mobile terminal; 4. The mobile fire detection and alarm device for underground enclosed spaces according to claim 3, characterized in that, The pressing component (5) further includes a limiting shaft (55) vertically installed on the mobile body (2), a spring (54) sleeved on the limiting shaft (55), and an adjusting nut (56) threadedly installed on the limiting shaft (55) and located below the spring (54); The pressing roller (51) is rotatably installed at one end of a support shaft (53), the middle of the support shaft (53) is fixed on a slider (52), the other end contacts the spring (54) and is subjected to its elastic force, and the slider (52) slides up and down on the support frame (3); 5. The mobile fire detection and alarm device for an underground enclosed space according to claim 4, wherein A plurality of vertically arranged limiting balls (31) are rotatably provided on one side of the support frame (3) close to the support track (1).

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