Fire extinguishing device suitable for narrow spaces

Abstract

The application belongs to the technical field of fire extinguishing, and discloses a fire extinguishing device suitable for narrow space, which comprises a shell, an alarm system, an alarm assembly and a start-stop assembly for starting and stopping the alarm assembly; the alarm system is arranged in the shell and is used for accepting and transmitting alarm sound emitted by an adjacent alarm system in an acoustic control mode; the alarm assembly comprises a bell and a bell receiver matched with the bell; the bell receiver is used for accepting bell sound emitted by an adjacent bell and controlling the bell to emit bell sound through a controller of the bell; the bell and the bell receiver are matched with each other, a mechanism of cascading transmission of alarm signals is realized, when a group of alarm systems emits bell sound, a bell receiver of an adjacent group can accept and control the bell to emit bell sound through a controller of the bell receiver; and the application solves the problem that the existing alarm system cannot transmit danger information when an alarm circuit is interrupted.

Description

Technical Field

[0001] This solution belongs to the field of fire extinguishing technology, specifically involving a fire extinguishing device suitable for confined spaces. Background Technology

[0002] A mining confined space fire extinguishing detection and alarm system and method, with public announcement number "CN116291725A", includes a material turning unit, a detection unit, a judgment unit, a central control processing unit, an alarm unit, and a terminal. The detection unit includes multiple detection groups, and the alarm unit includes multiple in-mine alarm groups and out-of-mine alarm groups. This invention uses a material turning unit to turn the material from the bottom of the conveyor belt to the top, preventing fire sources from being hidden inside the material and obscuring the detection unit's detection, thus avoiding serious fires. It also uses a fire source locating unit to locate detected fire sources, facilitating fire extinguishing by the fire source handling unit and allowing staff to know the exact location of the fire source in real time, thus facilitating fire suppression. This system uses multiple methods to detect fire sources in the coal pile, avoiding missed fire sources and reducing the probability of fires.

[0003] The existing alarm system has the following defects: (1) The above alarm system requires the use of circuits to transmit alarm signals. However, the high temperature and flames generated by a fire will cut off the alarm circuit, causing workers who are far away from the fire source to be unable to receive the alarm signal in time. (2) Fire is accompanied by strong electric arc discharge, short circuit and other electrical phenomena, which generate a lot of electromagnetic interference. This will affect the transmission of wireless signals, resulting in false alarms or missed alarms. (3) If the alarm system adopts wired communication, the wiring distance is long, which increases the difficulty of construction. Moreover, the signal is prone to attenuation during transmission. Summary of the Invention

[0004] The purpose of this solution is to provide a fire extinguishing device suitable for confined spaces, in order to solve the problem that existing alarm systems cannot transmit hazard information when the alarm circuit is interrupted.

[0005] To achieve the above objectives, this solution provides a fire extinguishing device suitable for confined spaces, including a housing and an alarm system, wherein the alarm system is used to receive and transmit alarm sounds emitted by an adjacent alarm system in a voice-activated manner, and the alarm system is located inside the housing.

[0006] The principle behind this solution is as follows: when a fire occurs in a confined space, the alarm system within the fire extinguishing device will sound an alarm to indicate a fire hazard. Once one alarm system sounds, the adjacent alarm system will receive and transmit the alarm.

[0007] The technical advantages of this solution are as follows: (1) The use of voice control to transmit the emergency signal avoids the impact of communication circuit interruption on the transmission of alarm signals. Even if the circuit is cut off by high temperature or flame, the alarm system can still effectively and timely transmit the alarm through voice control. (2) The transmission of signals between alarm systems through voice control is more resistant to interference than electromagnetic signals. It can reduce phenomena such as arc discharge and reduce the possibility of false alarms or missed alarms. (3) Since this solution uses wireless voice control to transmit alarm signals, it avoids the problem of long-distance wired communication wiring and reduces the difficulty of construction.

[0008] Furthermore, the alarm system includes an alarm component and a start / stop component for starting and stopping the alarm component; the alarm component includes an electric bell and an electric bell receiver that works with the electric bell, and the housing is provided with a battery for powering the electric bell and the electric bell receiver. The electric bell receiver is used to receive the electric bell sound emitted by adjacent electric bells and to control the electric bell to emit the electric bell sound through the electric bell controller.

[0009] The principle and technical effect of this scheme are as follows: (1) When a fire occurs, the electric bell controller controls the electric bell to ring, thereby indicating that a fire hazard has occurred. The electric bell ringing emitted by this group of alarm systems can be received by the electric bell receiver in the next group of alarm systems adjacent to it. After the electric bell receiver receives the electric bell ringing, it controls the electric bell of this group to ring through the controller, thereby transmitting the fire hazard. (2) Through the mutual cooperation between the electric bell and the electric bell receiver, a cascade transmission mechanism for alarm signals is realized. When a group of alarm systems rings the electric bell, the electric bell receiver of the adjacent group can receive it and control the electric bell to ring through its own controller, thereby realizing a chain reaction of signal transmission.

[0010] Furthermore, the start / stop assembly includes a heat flow plate and a spring for resetting the heat flow plate. The heat flow plate is raised by the heat flow generated by the flame. One end of the spring is connected to the heat flow plate, and the free end of the spring is connected to the housing. The heat flow plate is provided with a trigger button for starting the electric bell. The controller of the electric bell is provided with a push switch that cooperates with the trigger button. The push switch is normally open.

[0011] The principle and technical effect of this solution are as follows: (1) This device is suitable for narrow spaces, such as stairwells. When a fire occurs, the flame will generate an upward heat flow, and when a fire occurs in a narrow space, the heat flow of the flame will be more concentrated than in an open area. Therefore, this device can be suspended in a narrow space, and the heat flow plate will be pushed up by the heat flow, thereby driving the trigger button to approach the press switch. When the trigger button touches the press switch, the electric bell controller will be triggered to control the electric bell to make an electric bell sound. (2) When the fire in the narrow space is extinguished, the heat flow disappears, and the heat flow plate will reset under the action of the spring after losing the upward support force of the heat flow, thereby moving the trigger button away from the press switch. Since the press switch is normally closed, the electric bell will no longer make an electric bell sound. (3) The use of the start and stop assembly of the heat flow plate and spring avoids complex manual operation or electric mechanism.

[0012] Furthermore, the spring is equipped with a striking rod, which is configured to cooperate with the bell of the electric bell.

[0013] The principle and technical effect of this solution are as follows: when the current stabilizer rises and causes the spring to deform, the striking rod on the spring will vibrate, thereby striking the bell. This design assists in ringing the bell and prevents situations where the bell is out of power or the battery fails.

[0014] Furthermore, the housing is provided with a sliding groove, and the heat flow plate is slidably connected to the sliding groove.

[0015] The principle and technical effect of this solution are as follows: the heat flow plate can slide up and down within the groove. Therefore, the groove provides positioning and guidance for the movement of the heat flow plate, preventing it from dislodging during the up-and-down sliding process.

[0016] Furthermore, the bottom of the shell is provided with several guide holes, through which the heat generated by the flame enters the shell.

[0017] The principle and technical effect of this solution are as follows: by setting a guide hole at the bottom of the shell, the heat flow generated by the flame passes through the guide hole and enters the shell, thereby pushing the heat flow plate to slide upward and triggering the alarm system.

[0018] Furthermore, a thin film is provided inside several of the flow guide holes, and the thin film melts when exposed to the heat flow generated by the flame.

[0019] The principle and technical effect of this solution are as follows: the heat flow generated by the flame first melts the thin film inside the guide hole before entering the housing. This design aims to prevent air from flowing into the housing when no fire has occurred, thus avoiding the false triggering of the alarm system.

[0020] Furthermore, it also includes a fire extinguishing system, which is located inside the housing; the fire extinguishing system includes a gas storage tank and a valve, the gas storage tank contains a fire extinguishing medium, the valve is connected to the gas storage tank, the valve is connected to a nozzle through a gas pipe, and the nozzle is located outside the housing; the heat flow plate opens or closes the valve by raising and lowering.

[0021] The principle and technical effect of this scheme are as follows: (1) By opening the valve through the heat flow plate, the extinguishing medium in the gas storage tank is sprayed out through the nozzle via the gas pipe. The nozzle located outside the shell can extinguish external fire sources. (2) The fire extinguishing system and the alarm system are integrated into the same device. The two can respond to each other and cooperate to realize the functions of alarm and fire extinguishing at the same time.

[0022] Furthermore, the extinguishing medium is carbon dioxide or nitrogen.

[0023] The principle and technical effect of this solution are as follows: carbon dioxide and nitrogen are inert gases, which can quickly extinguish fires by reducing the oxygen concentration and preventing further combustion. Furthermore, they are non-conductive, making the use of inert gases as extinguishing agents safer in confined environments with dense electrical equipment.

[0024] Furthermore, the valve handle has a through groove, and a positioning bolt is slidably disposed in the through groove, the positioning bolt being threadedly connected to the heat flow plate.

[0025] The principle and technical effect of this scheme are as follows: (1) When the heat flow plate slides upward under the push of the heat flow, it will drive the positioning bolt to move in the same direction. The positioning bolt will drive the valve handle to rotate, thereby opening the valve. (2) When the external fire source is extinguished, the heat flow plate slides downward to reset. It will drive the positioning bolt to move synchronously. The positioning bolt will drive the valve handle to rotate in the opposite direction, thereby closing the valve. (3) The automatic start and stop of the valve is realized by linking the rise and reset of the heat flow plate with the valve handle. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a fire extinguishing device suitable for confined spaces according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a fire extinguishing device suitable for confined spaces according to the present invention. Figure 2 ; Figure 3 This is a cross-sectional view of a fire extinguishing device suitable for confined spaces according to the present invention. Figure 1 ; Figure 4 This is a cross-sectional view of a fire extinguishing device suitable for confined spaces according to the present invention. Figure 2 ; Figure 5This is a cross-sectional view of a fire extinguishing device suitable for confined spaces according to the present invention. Figure 3 .

[0027] The reference numerals in the accompanying drawings include: housing 1, slide 11, flow guide hole 12, alarm system 2, alarm component 21, electric bell 211, electric bell receiver 212, start / stop component 22, heat flow plate 221, spring 222, trigger button 223, fire extinguishing system 3, gas tank 31, valve 32, through groove 321, gas pipe 33, and positioning bolt 34. Detailed Implementation

[0028] The following will describe the concept and technical effects of the present invention clearly and completely with reference to embodiments, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Example: Please see Figure 1 Figure 2 This device is suitable for use in confined spaces, such as stairwells. The device includes a housing 1 and an alarm system 2. Alarm system 2 is used to receive and transmit alarm sounds from adjacent alarm systems via sound control. Alarm system 2 is located within the housing 1. The device can be suspended from the ceiling of the stairwell via lugs on the top of the housing 1. Simultaneously, a fire extinguishing device can be installed on each floor's stairwell. When a fire occurs in one of the stairwells, alarm system 2 within the fire extinguishing device will sound an alarm, indicating a fire hazard. Once one alarm system 2 sounds, the adjacent alarm system 2 will receive and transmit the alarm sound. This device uses sound control to transmit the hazard, avoiding the impact of communication circuit interruptions on alarm signal transmission. Even if the circuit is cut off by high temperature or flame, alarm system 2 can still effectively and promptly transmit the alarm via sound control.

[0029] Please see Figures 3-5The alarm system 2 includes an alarm component 21 and a start / stop component 22 for starting and stopping the alarm component 21. The alarm component 21 includes an electric bell 211 and an electric bell receiver 212 that works with the electric bell 211. A button battery is provided inside the housing 1 to power the electric bell 211 and the electric bell receiver 212. The electric bell receiver 212 receives the ringing sound from adjacent electric bells 211 and controls the electric bell 211 to ring through its controller. When a fire occurs, the electric bell controller controls the electric bell 211 to ring, thus indicating a fire hazard. The ringing sound emitted by this set of alarm systems 2 can be received by the electric bell receiver 212 in the next adjacent set of alarm systems 2. When the electric bell receiver 212 receives the ringing sound, it controls the electric bell 211 in that set to ring through its controller, thus transmitting the fire hazard. Through the cooperation of the electric bell 211 and the electric bell receiver 212, a cascading alarm signal transmission mechanism is realized. When one group of alarm systems 2 sounds the electric bell, the adjacent group's electric bell receiver 212 can receive it and control its own electric bell 211 to sound the electric bell, realizing a chain reaction of signal transmission.

[0030] The start / stop assembly 22 includes a heat flow plate 221 and a spring 222 for resetting the heat flow plate 221. The housing 1 is provided with a sliding groove 11, and the heat flow plate 221 is slidably connected to the sliding groove 11. The sliding groove 11 provides positioning and guidance for the movement of the heat flow plate 221. Several guide holes 12 are provided at the bottom of the housing 1. The heat flow generated by the flame enters the housing 1 through the guide holes 12. By setting the guide holes 12 at the bottom of the housing, the heat flow generated by the flame passes through the guide holes 12 and enters the housing 1, thereby pushing the heat flow plate 221 to slide upward and triggering the start of the alarm system 2. A thin film is provided in the several guide holes 12. The thin film melts after being heated by the heat flow generated by the flame. The heat flow generated by the flame first melts the thin film in the guide holes 12 and then enters the housing 1. The purpose of this setting is to prevent air from flowing into the housing 1 when no fire has occurred, thereby falsely triggering the start of the alarm system 2.

[0031] The heat flow plate 221 is raised by the heat flow generated by the flame. One end of the spring 222 is connected to the heat flow plate 221, and the free end of the spring 222 is connected to the housing 1. The heat flow plate 221 is equipped with a trigger button 223 for activating the electric bell 211. The controller of the electric bell 211 is equipped with a push switch that cooperates with the trigger button 223. The push switch is normally open. Since this device is applicable to stairwell lighting spaces, the heat flow generated by the flame is more concentrated than in open areas during a fire. Therefore, the heat flow pushes the heat flow plate upward, thereby causing the trigger button 223 to approach the push switch. When the trigger button 223 touches the push switch, it triggers the electric bell controller to control the electric bell 211 to ring. When the fire is extinguished, the heat flow disappears, and the heat flow plate 221, having lost the upward support force of the heat flow, returns to its original position under the action of the spring 222. This causes the trigger button 223 to move away from the push switch, and since the push switch is normally closed, the electric bell no longer rings. A striking bar is provided on the spring 222, which is configured to cooperate with the bell of the electric bell 211. When the heat exchange plate 221 rises and causes the spring 222 to deform, the striking bar on the spring 222 will shake, thereby striking the bell of the electric bell 211. Through the above configuration, auxiliary bell ringing is achieved, avoiding the situation where the electric bell's push switch is not activated when the heat exchange plate 221 rises.

[0032] It also includes a fire extinguishing system 3, which is located inside the housing 1. The fire extinguishing system 3 includes a gas storage tank 31 and a valve 32. The gas storage tank 31 contains carbon dioxide, which is an inert gas that can quickly extinguish fire sources. The valve 32 is connected to the gas storage tank 31 and is connected to a nozzle through a gas pipe 33. The nozzle is located outside the housing 1. The handle of the valve 32 has a through groove 321, and a positioning bolt 34 is slidably installed in the through groove 321. The positioning bolt 34 is threadedly connected to the heat flow plate 221. When the heat flow plate 221 is pushed upward by the heat flow, it will drive the positioning bolt 34 to move in the same direction. The positioning bolt 34 drives the handle of the valve 32 to rotate, thereby opening the valve 32 and allowing the carbon dioxide in the gas storage tank 31 to be sprayed out through the nozzle to extinguish the fire source. When the external fire source is extinguished, the heat flow plate 221 slides down to reset, which will simultaneously drive the positioning bolt 34 to move. The positioning bolt 34 drives the handle of the valve 32 to rotate in the opposite direction, thereby closing the valve 32. The fire extinguishing system 3 and the alarm system 2 are integrated into the same device, and the two can respond to and cooperate with each other to realize the functions of alarm and fire extinguishing at the same time.

[0033] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A fire extinguishing device suitable for confined spaces, comprising a housing (1), characterized in that, Also includes: An alarm system (2) is used to receive and transmit alarm sounds emitted by adjacent alarm systems in a voice-controlled manner. The alarm system (2) is located inside a housing (1). The alarm system (2) includes an alarm component (21) and a start / stop component (22) for starting and stopping the alarm component (21). The alarm component (21) includes an electric bell (211) and an electric bell receiver (212) that cooperates with the electric bell (211). The housing (1) is provided with a battery for powering the electric bell (211) and the electric bell receiver (212). The electric bell receiver (212) is used to receive the electric bell sound emitted by the adjacent electric bell (211) and control the electric bell (211) to emit the electric bell sound through the controller of the electric bell (211). The start / stop assembly (22) includes a heat flow plate (221) and a spring (222) for resetting the heat flow plate (221). The heat flow plate (221) is raised by the heat flow generated by the flame. One end of the spring (222) is connected to the heat flow plate (221), and the free end of the spring (222) is connected to the housing (1). The heat flow plate (221) is provided with a trigger button (223) for starting the electric bell (211). The controller of the electric bell (211) is provided with a push switch that cooperates with the trigger button (223). The push switch is normally open. It also includes a fire extinguishing system (3), which is located inside the housing (1); the fire extinguishing system (3) includes a gas storage tank (31) and a valve (32), the gas storage tank (31) contains a fire extinguishing medium, the valve (32) is connected to the gas storage tank (31), the valve (32) is connected to a nozzle through a gas pipe (33), the nozzle is located outside the housing (1); the heat flow plate (221) opens or closes the valve (32) by lifting and lowering.

2. A fire extinguishing device suitable for confined spaces according to claim 1, characterized in that: The spring (222) is provided with a striking rod, which is configured to cooperate with the bell of the electric bell (211).

3. A fire extinguishing device suitable for confined spaces according to claim 2, characterized in that: The housing (1) is provided with a sliding groove (11), and the heat flow plate (221) is slidably connected to the sliding groove (11).

4. A fire extinguishing device suitable for confined spaces according to claim 1, characterized in that: The bottom of the shell (1) is provided with several guide holes (12), and the heat generated by the flame enters the shell (1) through the several guide holes (12).

5. A fire extinguishing device suitable for confined spaces according to claim 4, characterized in that: A thin film is provided inside several of the flow guide holes (12), and the thin film melts after being heated by the heat generated by the flame.

6. A fire extinguishing device suitable for confined spaces according to claim 5, characterized in that: The extinguishing medium is carbon dioxide or nitrogen.

7. A fire extinguishing device suitable for confined spaces according to claim 6, characterized in that: The handle of the valve (32) has a through groove (321), and a positioning bolt (34) is slidably provided in the through groove (321). The positioning bolt (34) is threadedly connected to the heat flow plate (221).

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