Fire-fighting broadcast with active route guiding function

Abstract

The invention relates to the technical field of fire-fighting broadcast equipment, in particular to a fire-fighting broadcast with an active route guiding function, which comprises an annular assembly frame fixedly mounted on an indoor ceiling of a building, a ventilation pipeline fixedly mounted on the indoor ceiling of the building and a broadcast loudspeaker used for playing fire-fighting information. According to the fire-fighting broadcast with the active route guiding function, a top hanging type structural design is adopted, a hidden fitting design is adopted in idle hours, the fire-fighting broadcast and a suspended ceiling form a whole, the integrity of the suspended ceiling is guaranteed, an electric control lifting supporting rod is used for controlling an internal telescopic housing to descend after a fire disaster occurs, and therefore a detection opening and a projection opening are opened; the operation is convenient; the fire-fighting broadcast has the functions of optical indication, electric control adjustment, infrared remote distance measurement and short-distance smoke temperature and concentration measurement at the same time, and the function integration degree is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fire broadcasting equipment, in particular to a fire broadcasting device with an active route guidance function. Background Art

[0002] The fire broadcast system, also known as the emergency broadcast system, is an important device used to issue evacuation instructions, guide personnel to evacuate, and transmit fire information in emergency situations such as fires. It plays an extremely important role in the entire fire control and management system. When a fire occurs, the emergency broadcast signal is sent out through the sound source device, and after power amplification, it is switched to the speakers in the designated broadcast area by the broadcast switching module to realize emergency broadcasting. The general broadcast system is mainly composed of host-side equipment: sound source equipment, broadcast power amplifier, fire alarm controller, etc., and on-site equipment: output module, speaker. It adopts a variety of layout settings such as ceiling hanging or wall hanging.

[0003] At present, the fire broadcasts on the market simply assist the evacuation of people through high-pitched warnings. However, the specific evacuation locations vary according to the locations of different fire broadcasts. Therefore, there is no relatively clear directionality, which can easily lead to people being unable to evacuate in the correct direction. At the same time, it is also impossible to connect and indicate the correct escape location. When a fire occurs indoors, a large amount of toxic gas will be generated, and it is impossible to assist in the discharge of the toxic gas to provide protection for the escape of the affected people, making the functionality and practicality of the entire fire broadcast relatively limited. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the fire broadcast currently on the market simply assists crowd evacuation by means of high-pitched warnings, has no relatively clear directionality, and the functionality and practicality of the entire fire broadcast are relatively limited.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a fire broadcast with an active route guidance function, including an annular assembly frame fixedly installed on the indoor ceiling of a building, a ventilation duct fixedly installed on the indoor ceiling of the building and a broadcast loudspeaker for playing fire information, the annular assembly frame is slidably equipped with an internal telescopic cover shell, the broadcast loudspeaker is fixedly installed on the inner bottom surface of the internal telescopic cover shell, an annular top adjustment cover is installed on the outer arc surface of the internal telescopic cover shell, a bottom smoke collection fan matching the annular top adjustment cover is installed at the bottom of the ventilation duct, and an LED indicator light, an infrared temperature measuring probe, a temperature sensor and a smoke concentration sensor are installed on the annular top adjustment cover.

[0006] A plurality of electrically controlled lifting struts for controlling the lifting of the internal telescopic cover are fixedly mounted on the upper end of the annular assembly frame, and the bottom telescopic ends of the electrically controlled lifting struts penetrate the annular assembly frame and are fixedly connected to the internal telescopic cover.

[0007] An annular lateral adjustment groove for installing an annular top adjustment cover is provided on the outer arc surface of the internal telescopic cover shell, and a built-in adjustment motor for controlling the rotation of the annular top adjustment cover is installed on the inner wall of the internal telescopic cover shell.

[0008] An annular tooth groove matching with the built-in adjusting motor is provided on the inner arc-shaped assembly surface of the annular top adjusting cover, and the built-in adjusting motor is meshed and driven with the annular tooth groove through the adjusting gear on the adjusting shaft.

[0009] The outer arc surface of the annular top adjustment cover is provided with a lateral installation groove for installing an LED indicator light and a lateral guide groove for installing an infrared temperature measuring probe, a temperature sensor, and a smoke concentration sensor.

[0010] The upper end of the annular top adjustment cover is provided with an upwardly protruding top guide pipe, and the top end of the top guide pipe is fixedly equipped with an annular assembly cover that matches the bottom smoke collection fan.

[0011] The detection direction of the infrared temperature measuring probe is the same as the opening direction of the lateral guide groove, and the temperature sensor and the smoke concentration sensor are fixedly installed on the inner wall of the opening of the lateral guide groove.

[0012] A bottom air guide cover for installing a bottom smoke collecting fan is fixed at the bottom of the ventilation duct, a ring-shaped assembly opening matching the ring-shaped assembly cover is opened at the lower end of the bottom air guide cover, and an inclined air guide pipe connected to the inside of the ventilation duct is fixedly mounted on the outer arc surface of the bottom air guide cover.

[0013] The lower end of the internal telescopic cover is provided with an arc-shaped air guide notch which is connected with the lateral guide groove.

[0014] A synchronous communication control module for externally connecting a synchronous communication cable is fixedly mounted inside the internal telescopic cover.

[0015] The beneficial effects of the present invention are: (1) The fire alarm with active route guidance function of the present invention adopts a ceiling-hanging structure design, and adopts a hidden fitting design when not in use, so as to form a whole with the ceiling, thereby ensuring the integrity of the ceiling. After a fire occurs, the internal telescopic cover is controlled to descend by an electric lifting support rod, thereby opening the detection port and the projection port, which is convenient for operation; (2) Fire broadcasting is equipped with an electrically controlled and rotatable annular top adjustment cover on the outer arc surface of the internal telescopic cover, and an LED indicator, an infrared temperature probe, a temperature sensor and a smoke concentration sensor are installed on the annular top adjustment cover, so that it has the functions of optical indication, electrical control adjustment, infrared long-distance ranging and short-distance smoke temperature and concentration measurement, which greatly improves the functional integration; (3) By connecting the fire broadcasts at all locations in series, they have the function of synchronous control, so as to quickly determine the location of the fire and the direction of the fire, and facilitate the control of the fire broadcasts at all locations; (4) By coordinating the fire broadcast with the indoor ventilation ducts, dense fog can be quickly evacuated when it occurs, and then the projection effect of the LED indicators on both sides can be ensured, thereby effectively reducing the concentration of toxic gases in the room and improving escape safety; (5) Through the electronically controlled steering of the annular top adjustment cover, the infrared temperature probe, temperature sensor and smoke concentration sensor are facing the direction of the fire, and then the outer LED indicator light is used to project light to the ground to indicate the correct direction, thereby providing a more intuitive and effective escape reminder; (6) The use of optical and audible dual reminders can replace traditional warning lights, greatly improving the functional integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the general assembly structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0019] Figure 3 It is a lateral internal structure schematic diagram of the present invention. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Figure 1 , Figure 2 and Figure 3The fire broadcast with active route guidance function shown in the figure includes an annular assembly frame 1 fixedly installed on the indoor ceiling of the building, a ventilation duct 2 fixedly installed on the indoor ceiling of the building and a broadcast speaker 3 for playing fire information, the annular assembly frame 1 is slidably equipped with an internal telescopic cover shell 4, the broadcast speaker 3 is fixedly installed on the inner bottom surface of the internal telescopic cover shell 4, an annular top adjustment cover 5 is installed on the outer arc surface of the internal telescopic cover shell 4, a bottom smoke collection fan 6 matching the annular top adjustment cover 5 is installed at the bottom of the ventilation duct 2, and an LED indicator light 7, an infrared temperature measuring probe 8, a temperature sensor 9 and a smoke concentration sensor 10 are installed on the annular top adjustment cover 5.

[0023] Working principle: When a fire occurs indoors, the fire broadcast closest to the fire point will sense the fire through the temperature sensor 9 and the smoke concentration sensor 10, and then send an alarm to the remote terminal, and then send a fire broadcast according to the signal of the remote terminal, play the warning audio through the broadcast speaker 3, and then the internal telescopic cover 4 will drop and extend, and then use the infrared temperature probe 8 to detect the exact direction of the fire, and then use the LED indicator 7 to start working, projecting it on the ground in the form of an optical indicator arrow, and then guide the escapees to escape in the designated direction.

[0024] In order to cooperate with the electric control lifting adjustment, a plurality of electric control lifting struts 11 for controlling the lifting of the internal telescopic cover 4 are fixedly installed on the upper end of the annular assembly frame 1. The bottom telescopic end of the electric control lifting strut 11 passes through the annular assembly frame 1 and is fixedly connected to the internal telescopic cover 4.

[0025] The electrically controlled lifting strut 11 controls the lifting and lowering adjustment of the internal telescopic cover 4 by extending and retracting.

[0026] In order to cooperate with lateral assembly and electric control adjustment, an annular lateral adjustment groove for installing the annular top adjustment cover 5 is opened on the outer arc surface of the internal telescopic cover shell 4, and a built-in adjustment motor 12 for controlling the rotation of the annular top adjustment cover 5 is installed on the inner wall of the internal telescopic cover shell 4.

[0027] In order to cooperate with the electric control adjustment, an annular tooth groove 13 cooperating with the built-in adjustment motor 12 is opened on the inner arc assembly surface of the annular top adjustment cover 5, and the built-in adjustment motor 12 is meshed with the annular tooth groove 13 through the adjustment gear 14 on the adjustment shaft.

[0028] The built-in adjustment motor 12 drives the adjustment gear 14, thereby driving the annular top adjustment cover 5 to adjust the angle. The maximum adjustment angle of the annular top adjustment cover 5 is 180°.

[0029] In order to facilitate lateral installation, a lateral installation groove 15 for installing the LED indicator light 7 and a lateral guide groove 16 for installing the infrared temperature probe 8, the temperature sensor 9, and the smoke concentration sensor 10 are opened on the outer curved surface of the annular top adjustment cover 5.

[0030] The lateral guide groove 16 is an L-shaped flow channel. The infrared temperature measuring probe 8 is fixedly installed in the longitudinal section of the lateral guide groove 16 for long-distance temperature measurement; while the temperature sensor 9 and the smoke concentration sensor 10 are fixedly installed at the opening position of the transverse section of the lateral guide groove 16 for close-range temperature measurement and smoke concentration measurement.

[0031] Lateral guide grooves 16 are provided on both sides of the annular top adjustment cover 5 to monitor the temperature in the fire direction and the escape direction respectively, so that the monitoring range is wider, thereby improving safety.

[0032] In order to cooperate with the top connection, the upper end of the annular top adjustment cover 5 has an upwardly protruding top guide pipe 17, and the top of the top guide pipe 17 is fixedly equipped with an annular assembly cover 18 that cooperates with the bottom smoke collection fan 6.

[0033] The top guide pipe 17 is fixedly connected to the inside of the lateral guide groove 16 .

[0034] In order to improve the detection effect, the detection direction of the infrared temperature measuring probe 8 is the same as the opening direction of the lateral guide groove 16, and the temperature sensor 9 and the smoke concentration sensor 10 are fixedly installed on the inner wall of the opening of the lateral guide groove 16.

[0035] When the electric lifting support rod 11 controls the internal telescopic cover 4 to descend, the lateral opening of the lateral guide groove 16 is opened, and the infrared temperature probe 8 can monitor the temperature change at a long distance, and control the rotation speed of the bottom smoke collecting fan 6 according to the temperature change. In addition, through real-time temperature monitoring, the indication direction of the annular top adjustment cover 5 or the LED indicator 7 at this position can be quickly adjusted according to the change of the fire; For example, when the fire alarm is installed at the entrance of a three-way passage, if there is a fire on both sides of the lateral diversion groove 16, the infrared temperature measuring probe 8 will control the built-in adjustment motor 12 to drive the annular top adjustment cover 5 to rotate, and point the indication direction of the LED indicator 7 to the third passage; if there is still a fire in the third passage, the LED indicator 7 will issue a red no-entry indication, intuitively reminding the escapees to clear the dirt and move forward.

[0036] In order to cooperate with the top connection, a bottom air guide cover 19 for installing the bottom smoke collection fan 6 is fixed at the bottom of the ventilation duct 2. The lower end of the bottom air guide cover 19 is provided with an annular assembly opening that matches the annular assembly cover 18. An inclined air guide pipe 20 connected to the interior of the ventilation duct 2 is fixedly installed on the outer curved surface of the bottom air guide cover 19.

[0037] An internal fixing bracket is fixed on the inner wall of the annular assembly opening, and the annular assembly cover 18 is inserted into the lower end opening of the annular assembly opening and movably assembled with the lower end of the bottom air guide cover 19, so that the bottom air guide cover 19, the annular assembly cover 18, the inclined air guide pipe 20, the top air guide pipe 17, the lateral air guide groove 16 and the ventilation duct 2 are connected.

[0038] The bottom smoke collecting fan 6 rotates, so that the air is introduced into the ventilation duct 2 through the lateral guide groove 16, the top guide pipe 17, the annular assembly cover 18, the bottom guide cover 19, and the inclined guide pipe 20 in sequence. In order to detect the external air when not in use, an arc-shaped air guide notch 21 communicating with the lateral guide groove 16 is provided at the lower end of the internal telescopic cover 4 .

[0039] When idle, the bottom smoke collecting fan 6 rotates slowly, and the indoor air is slowly drawn into the lateral guide groove 16 through the arc-shaped air guide notch 21. By detecting the temperature and smoke concentration of the drawn air, the purpose of real-time monitoring of the fire situation is achieved; at the same time, the use of exhaust can also achieve a certain purpose of indoor ventilation.

[0040] In order to cooperate with the serial communication, a synchronous communication control module 22 for externally connecting a synchronous communication cable is fixedly mounted inside the internal telescopic cover 4 .

[0041] The fire broadcasts at all locations are connected in series using a synchronous communication cable through the synchronous communication control module 22, and then the fire broadcast closest to the fire point will transmit the fire information and location information to the remote terminal, and then the remote terminal transmits it to each fire broadcast through the synchronous communication cable. While playing the fire information, the built-in adjustment motor 12 is controlled to drive the annular top adjustment cover 5 to rotate, and the lateral guide groove 16 on the annular top adjustment cover 5 is facing the fire point, and then the fire broadcasts at all locations are optically pointed through the LED indicator light 7, pointing to the escape route in the opposite direction of the fire point.

[0042] The synchronous communication control module 22 adopts the existing technology and is directly connected to the synchronous communication cable. Then the control end is electrically connected to the LED indicator light 7, the infrared temperature probe 8, the temperature sensor 9, the smoke concentration sensor 10 and the built-in regulating motor 12 for convenient control.

[0043] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fire broadcast with an active route guidance function, comprising a ring-shaped assembly frame (1) fixedly mounted on a building indoor ceiling, a ventilation duct (2) fixedly mounted on the building indoor ceiling, and a broadcast loudspeaker (3) for broadcasting fire information, wherein: The annular assembly frame (1) is slidably mounted with an internal telescopic cover (4), the broadcasting speaker (3) is fixedly mounted on the inner bottom surface of the internal telescopic cover (4), an annular top adjustment cover (5) is mounted on the outer arc surface of the internal telescopic cover (4), a bottom smoke collecting fan (6) matched with the annular top adjustment cover (5) is mounted at the bottom of the ventilation duct (2), and an LED indicator light (7), an infrared temperature measuring probe (8), a temperature sensor (9) and a smoke concentration sensor (10) are mounted on the annular top adjustment cover (5).

2. The fire broadcasting system with active route guidance function according to claim 1 is characterized in that: A plurality of electrically controlled lifting struts (11) for controlling the lifting of the internal telescopic cover (4) are fixedly mounted on the upper end of the annular assembly frame (1); the bottom telescopic ends of the electrically controlled lifting struts (11) penetrate the annular assembly frame (1) and are fixedly connected to the internal telescopic cover (4).

3. The fire broadcasting system with active route guidance function according to claim 1 is characterized in that: An annular lateral adjustment groove for mounting an annular top adjustment cover (5) is provided on the outer arc surface of the internal telescopic cover shell (4), and a built-in adjustment motor (12) for controlling the rotation of the annular top adjustment cover (5) is installed on the inner wall of the internal telescopic cover shell (4).

4. The fire broadcasting system with active route guidance function according to claim 3 is characterized by: An annular tooth groove (13) matching with the built-in adjustment motor (12) is provided on the inner arc-shaped assembly surface of the annular top adjustment cover (5); the built-in adjustment motor (12) is meshed with the annular tooth groove (13) for transmission via an adjustment gear (14) on the adjustment shaft.

5. The fire broadcasting system with active route guidance function according to claim 1 is characterized in that: The outer arc surface of the annular top adjustment cover (5) is provided with a lateral installation groove (15) for installing an LED indicator light (7) and a lateral guide groove (16) for installing an infrared temperature measuring probe (8), a temperature sensor (9), and a smoke concentration sensor (10).

6. The fire broadcasting system with active route guidance function according to claim 5 is characterized by: The upper end of the annular top adjustment cover (5) is provided with an upwardly protruding top guide pipe (17), and the top end of the top guide pipe (17) is fixedly provided with an annular assembly cover (18) that matches the bottom smoke collection fan (6).

7. The fire broadcasting system with active route guidance function according to claim 5 is characterized by: The detection direction of the infrared temperature measuring probe (8) is the same as the opening direction of the lateral guide groove (16), and the temperature sensor (9) and the smoke concentration sensor (10) are fixedly mounted on the inner wall of the opening of the lateral guide groove (16).

8. The fire broadcasting system with active route guidance function according to claim 6 is characterized by: A bottom air guide cover (19) for mounting a bottom smoke collecting fan (6) is fixed at the bottom of the ventilation duct (2); an annular assembly opening matching the annular assembly cover (18) is provided at the lower end of the bottom air guide cover (19); an inclined air guide pipe (20) connected to the interior of the ventilation duct (2) is fixedly mounted on the outer arc surface of the bottom air guide cover (19).

9. The fire broadcasting system with active route guidance function according to claim 5 is characterized by: The lower end of the internal telescopic cover (4) is provided with an arc-shaped air guide notch (21) which is connected to the lateral guide groove (16).

10. The fire broadcasting system with active route guidance function according to claim 1 is characterized in that: The internal telescopic cover (4) is fixedly equipped with a synchronous communication control module (22) for externally connecting a synchronous communication cable.

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