A reusable sprinkler head for extinguishing water in building fires

Abstract

The invention discloses a reusable sprinkler for fire extinguishing in buildings, which comprises a body, a curved splash plate fixedly connected to the bottom end of the body through a connecting rod, a heater fixedly connected below the splash plate, a heat expansion material arranged inside the heater, a push rod arranged above the heat expansion material, the top end of the push rod passing through the splash plate and extending into the body, a cross bar fixedly connected to the inner wall of the body, a sieve plate arranged at the outlet of the body, a cover plate arranged on the sieve plate, a spring arranged between the cover plate and the cross bar, a push rod fixedly connected to the bottom end of the cover plate, the push rod passing downward through the sieve plate and a holder fixedly connected to the bottom end, the holder being located opposite to the top end of the push rod, a symmetrical groove arranged on the push rod, two symmetrical locking pins arranged on the outer side of the push rod, the locking pins can be stuck in the groove to fix the push rod. The system structure of the invention is simple, easy to operate, reusable, and adopts active / passive start, and realizes the start and close of each sprinkler through a sensor, and the start mode has achieved a good use effect.

Description

Technical Field

[0001] The invention relates to a building fire auxiliary escape system, in particular to a reusable sprinkler head for extinguishing water during building fires, and belongs to the technical field of building fire fighting equipment. Background Art

[0002] With the growth of my country's national economy and the rapid development of science and technology, various high-rise buildings are lined up one after another. High-rise buildings have complex structures and dense populations. There is a lack of effective monitoring and guidance means for the flow and distribution of personnel in the building. Especially when a fire occurs, the electromagnetic, sound, light, and communication environment on site are extremely complex. Conventional technical means are difficult to meet the needs of locating and evacuating trapped people and fire rescue personnel in high-rise buildings. Therefore, how to determine the location of people inside the fire scene and the safe evacuation of trapped people when a fire occurs is the most concerned and difficult problem for fire fighting and rescue.

[0003] At present, the main methods for locating trapped persons in fire images include the fire trapped persons positioning system based on the GPS monitoring system with remote image transmission, the fire trapped persons positioning system based on fuzzy control, and the fire trapped persons positioning system based on FPGA. Among them, the most commonly used is the fire trapped persons positioning system based on the GPS monitoring system with remote image transmission. When using the traditional fire trapped persons positioning system to locate people, the image of people collected by the video acquisition equipment is greatly disturbed by the fire smoke and the panic movement of the trapped people, which reduces the accuracy of personnel recognition and leads to poor positioning effect. Summary of the invention

[0004] The technical problem to be solved by the present invention is: to provide a reusable sprinkler for water extinguishing in building fires, the sprinkler comprising two sets of trigger devices, namely a traditional temperature passive trigger switch and an active opening device activated by an information transmission device. The sprinkler trigger device is reusable, and the sprinkler water tray is provided with a contact electrode to determine whether the sprinkler is working properly. The triggering condition of the active trigger device is controlled by the temperature and smoke concentration data transmitted from the personnel protection device to the information transmission device. The active and passive start-up of the sprinkler will return different signals, which will be transmitted to the central control through the information transmission device. The sprinkler device of the present invention can be reused, and active / passive start-up is adopted, and the start-up and shutdown of each sprinkler are realized through sensors, and the start-up mode solves the above-mentioned existing problems.

[0005] The technical solution of the present invention is: a reusable sprinkler head for extinguishing water in building fires, which includes a main body, the bottom end of the main body is fixedly connected to an arc-shaped splash plate through a connecting rod, a heater is fixedly connected below the splash plate, a heat expansion material is arranged in the heater, a push rod is arranged above the heat expansion material, the top end of the push rod passes through the splash plate and extends into the inside of the main body, a cross bar is fixedly connected to the inner wall of the main body, a sieve plate is arranged at the outlet of the main body, a cover plate is arranged on the sieve plate, a spring is arranged between the cover plate and the cross bar, a push rod is fixedly connected to the bottom end of the cover plate, the push rod passes downward through the sieve plate and the bottom end is fixedly connected to a holder, the holder is located opposite to the top end of the push rod, symmetrical grooves are arranged on the push rod, and two symmetrical locking pins are arranged on the outer side of the push rod, the locking pins can be stuck in the grooves to fix the push rod.

[0006] A rubber ring is arranged between the cover plate and the screen plate.

[0007] The splash plate is provided with two symmetrical contacts, which are located at both sides of the push rod and are electrically connected to a remote information transmission device through a wire.

[0008] The heater is an electric heating structure and is electrically connected to a remote information transmission device.

[0009] A motor is arranged below the outer side of the splash plate, the motor shaft is connected with the locking pin through a flexible shaft, and the motor is electrically connected with a remote information transmission device.

[0010] The beneficial effects of the present invention are as follows: compared with the prior art, the technical solution of the present invention is adopted, the system structure of the present invention is simple and easy to operate, the nozzle adopts an intelligent control nozzle, and the nozzle includes two sets of trigger devices, namely the traditional temperature passive trigger switch and the active opening device received by the information transmission device. The nozzle trigger device is reusable, and the nozzle water dispersion plate is provided with a contact electrode to determine whether the nozzle is working normally. The triggering condition of the active trigger device is controlled by the temperature and smoke concentration data transmitted from the personnel protection device to the information transmission device. The active and passive start-up of the nozzle will return different signals, which will be transmitted to the central control through the information transmission device. The nozzle device of the present invention can be reused, and active / passive start-up is adopted, and the start-up and shutdown of each nozzle are realized through sensors, and the start-up mode has achieved a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the nozzle of the present invention;

[0012] Figure 2 It is a schematic diagram of the enlarged part A of the nozzle of the present invention. DETAILED DESCRIPTION

[0013] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings of this specification.

[0014] Embodiment 1: As attached Figures 1-2 As shown, a reusable sprinkler head for building fire extinguishing water comprises a body 22, the bottom end of the body 22 is fixedly connected with an arc-shaped splash plate 53 through a connecting rod 51, a heater 34 is fixedly connected below the splash plate 53, a heat expansion material 35 is arranged in the heater 34, a push rod 31 is arranged above the heat expansion material 35, the top end of the push rod 31 passes through the splash plate 53 and extends into the body 22, a cross bar 50 is fixedly connected to the inner wall of the body 22, a sieve plate 30 is arranged at the outlet of the body 22, a cover plate 28 is arranged on the sieve plate 30, a spring 27 is arranged between the cover plate 28 and the cross bar 50, a top rod 55 is fixedly connected to the bottom end of the cover plate 28, the top rod 55 passes downward through the sieve plate 30 and a clamping seat 56 is fixedly connected to the bottom end, the clamping seat 56 is located opposite to the top end of the push rod 31, a symmetrical groove 54 is arranged on the push rod 31, two symmetrical locking pins 33 are arranged on the outer side of the push rod 31, and the locking pin 33 can be inserted into the groove 54 to fix the push rod 31.

[0015] Furthermore, a rubber ring 29 is provided between the cover plate 28 and the sieve plate 30 .

[0016] Furthermore, two symmetrical contacts 32 are provided on the splash plate 53 . The contacts 32 are located on both sides of the push rod 31 . The contacts 32 are electrically connected to a remote information transmission device through a wire.

[0017] Furthermore, the heater 34 is an electric heating structure and is electrically connected to a remote information transmission device.

[0018] Furthermore, a motor 37 is provided below the outer side of the splash plate 53 , the shaft of the motor 37 is connected to the locking pin 33 via a flexible shaft 52 , and the motor 37 is electrically connected to a remote information transmission device.

[0019] The nozzle adopts an intelligent control nozzle, and the nozzle includes two sets of trigger devices, namely, a traditional temperature passive trigger switch and an active opening device by an information transmission device. The working principle of the traditional temperature passive trigger switch is as follows: when the ambient temperature rises to the fire alarm value, the thermal expansion material 35 in the cavity at the lower end of the nozzle senses the high temperature, expands due to the heat, squeezes upward and pushes the push rod 31 to rise, pushes against the seat 56 and drives the cover plate 28 to move upward together, until the groove 54 on the push rod 31 is stuck in the lock pin 33 and stops. The seat 56 and the cover plate 28 are fixedly connected by the push rod 55. In addition, a rubber ring 29 is provided at the lower end of the cover plate 28 to ensure the sealing of the cover plate 28. Therefore, when the seat 56 continues to rise, it will drive the cover plate 28 upward together, and water can be sprayed out from the sieve plate 30 to extinguish the fire.

[0020] When the information transmission device is actively turned on, the working principle of the device is as follows: when a fire has occurred, but because the nozzle is far away from the fire source, the thermal expansion material 35 in the lower cavity of the nozzle does not expand due to heat, but the temperature and smoke concentration in the environment reach the warning values ​​set by the temperature sensor and the smoke sensor. The information transmission device will transmit the information to the heater 34 for heating, and the information transmission device will also transmit the information to the central control. After receiving the information, the central control combines the data with the BIM to form a real-time fire cloud map. The thermal expansion material 35 in the lower cavity of the nozzle 22 expands due to heat. After that, the steps are the same as the first principle.

[0021] Attached Figure 2 The function of the two contacts 32 is: when there is no fire, it is to check whether the sprinkler is leaking. If there is water on the splash plate, the two contacts 32 are connected, and the power will be on. When a fire occurs, it is to determine whether the sprinkler is working actively or passively. There are two feedback signals for the active operation of the sprinkler (one is the working signal given to the sprinkler by the information transmission device; the other is a signal fed back to the information transmission device after the sprinkler sprays water and the contact is triggered), and there is only one working signal for the passive operation of the sprinkler (a signal fed back to the information transmission device after the sprinkler sprays water and the contact is triggered). The motor 37 and the lock pin 33 are connected with high temperature resistant nylon material. After the fire is extinguished, the central control issues a command to drive the lock pin 33 to retract through the motor 37, and the push rod will automatically fall, thereby achieving the purpose of reuse. The fire source position is analyzed later by analyzing the start position and time of the first sprinkler.

[0022] Furthermore, the sprinkler fire extinguishing device uses a traditional fire extinguishing pipeline, and the sprinkler uses an intelligent control sprinkler. The sprinkler contains two sets of trigger devices, namely the traditional temperature passive trigger switch and the active opening device received by the information transmission device. The sprinkler trigger device is reusable, and the sprinkler water tray has contacts to determine whether the sprinkler is working properly. The trigger condition of the active trigger device is controlled by the temperature and smoke concentration data transmitted from the personnel protection device to the information transmission device. The active and passive start of the sprinkler will return different signals, which will be transmitted to the central control through the information transmission device.

[0023] Furthermore, the central control equipment is used to integrate the data of the entire building. The central control equipment integrates the data generated by the sensors and personnel protection devices inside the building, and combines the integrated data with BIM in real time to generate a real-time monitoring cloud map of the building fire and a personnel location map; the central control equipment determines the location of the fire by integrating the data, avoids the dangerous location through background data processing, plans the best route for diversion and evacuation, and sends the information to the information transmission device to assist the internal personnel of the floor to evacuate to a safe location; the central control equipment uses the Internet to transmit data to the rescue personnel equipment in real time. Rescuers can communicate with the trapped people through the background to assist in escape.

[0024] Furthermore, the information transmission device is an important device for sending guidance information, collecting and locating personnel protection device data, and controlling the operation of the fire-fighting device during the escape process. The information transmission device includes a data transmission and receiving antenna (interacting with the helmet sensor integrated device), a data processing and transmission processor of the emergency channel physical indication panel, and an internal emergency power supply.

[0025] Furthermore, the water sprinkler fire extinguishing device adopts a traditional fire extinguishing pipeline, and the sprinkler adopts an intelligent control sprinkler. The sprinkler includes two sets of trigger devices, namely a traditional temperature passive trigger switch and an active opening device that receives an information transmission device. The sprinkler trigger device is reusable, and the sprinkler water tray is provided with a contact electrode 32 to determine whether the sprinkler is working properly. The triggering condition of the active trigger device is controlled by the temperature and smoke concentration data transmitted from the personnel protection device to the information transmission device. The active and passive start of the sprinkler will return different signals, which will be transmitted to the central control through the information transmission device.

[0026] Furthermore, when the sprinkler head is passively protected, the sensor detects a fire, the heat expansion material 35 expands due to the heat, and pushes the lower push rod 31 upward, and the upper push rod 31 drives the cover plate 28 to move upward until the recess of the push rod 31 is engaged with the locking pin 33, and water is sprayed out from the screen plate 30 to extinguish the fire.

[0027] Furthermore, when the sprinkler is actively protected, the sensor does not detect the occurrence of a fire, but personnel have already discovered the occurrence of a fire. The central controller transmits a signal to the heater 34 for heating, and the heat expansion material 35 expands due to the heat, pushing the lower push rod 31 upward, and the upper push rod 31 drives the cover plate 28 to move upward until the recess of the push rod 31 is engaged with the lock pin 33, and water is sprayed out from the screen plate 30 to extinguish the fire.

[0028] Furthermore, after the sprinkler fire is extinguished, the main water gate is closed, the locking pin 33 is driven backward by the motor, and the push rod 31 drives the cover plate 28 to fall back onto the screen plate 30, thereby achieving the purpose of reuse.

[0029] The system structure of the present invention is simple and easy to operate. The nozzle adopts an intelligent control nozzle. The nozzle includes two sets of trigger devices, namely a traditional temperature passive trigger switch and an active opening device received by an information transmission device. The nozzle trigger device is reusable, and the nozzle water dispersion plate is provided with a contact electrode to determine whether the nozzle is working normally. The triggering condition of the active trigger device is controlled by the temperature and smoke concentration data transmitted from the personnel protection device to the information transmission device. The active and passive start-up of the nozzle will return different signals, which will be transmitted to the central control through the information transmission device. The nozzle device of the present invention can be reused, and active / passive start-up is adopted, and the start-up and shutdown of each nozzle are realized through sensors, and the start-up mode has achieved a good use effect.

[0030] The parts not described in detail in the present invention are all known technologies to those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A reusable sprinkler head for fire extinguishing in buildings, characterized in that: It comprises a body (22), the bottom end of the body (22) is fixedly connected to an arc-shaped splash plate (53) via a connecting rod (51), a heater (34) is fixedly connected below the splash plate (53), a heat expansion material (35) is arranged inside the heater (34), a push rod (31) is arranged above the heat expansion material (35), the top end of the push rod (31) passes through the splash plate (53) and extends into the body (22), a cross bar (50) is fixedly connected to the inner wall of the body (22), a sieve plate (30) is arranged at the outlet of the body (22), a cover plate (28) is arranged on the sieve plate (30), a spring (27) is arranged between the cover plate (28) and the cross bar (50), and the bottom end of the cover plate (28) is fixedly connected to the cover plate (28). A push rod (55) is connected, the push rod (55) passes through the sieve plate (30) downward and is fixedly connected to a holder (56) at the bottom end, the holder (56) is located opposite to the top end of the push rod (31), the push rod (31) is provided with symmetrical grooves (54), the outer side of the push rod (31) is provided with two symmetrical locking pins (33), the locking pins (33) can be inserted into the grooves (54) to fix the push rod (31); a rubber ring (29) is provided between the cover plate (28) and the sieve plate (30); two symmetrical contacts (32) are provided on the splash plate (53), the contacts (32) are located on both sides of the push rod (31), and the contacts (32) are electrically connected to a remote information transmission device through a wire.

2. The reusable nozzle for building fire extinguishing according to claim 1, characterized in that: The heater (34) is an electric heating structure and is electrically connected to a remote information transmission device.

3. The reusable nozzle for building fire extinguishing according to claim 1, characterized in that: A motor (37) is provided below the outer side of the splash plate (53); the shaft of the motor (37) is connected to the lock pin (33) via a flexible shaft (52); and the motor (37) is electrically connected to a remote information transmission device.

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