A multifunctional intelligent fire hydrant

Abstract

The present invention relates to a multifunctional intelligent fire hydrant, comprising: a fire hydrant body: including a hydrant body, a hydrant body provided on the hydrant body through a cracking ring, a hydrant cap detachably installed on the top of the hydrant body, and an intelligent monitor arranged in the upper part of the hydrant body to form a space with the hydrant cap. The intelligent monitor includes a machine box and an Internet of Things module installed on the machine box. The Internet of Things module includes a signal collector, a central processor, and a communication module arranged on a circuit board and connected in sequence for collecting the state signals of the fire hydrant; a control cloud platform: realizing communication with the communication module by means of NB-IoT or 4G; a monitoring terminal: communicating with the control cloud platform, including a WEB client and a mobile phone client. Compared with the prior art, the present invention has the advantages of multifunction, detecting the opening, closing and opening degree of the fire hydrant, monitoring the water conveyance and leakage states, monitoring the pipe network pressure, and low power consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of fire fighting equipment, and in particular to a multifunctional intelligent fire hydrant. Background Art

[0002] Fire hydrants are important fire fighting facilities in urban construction. They can directly connect to water hoses and water guns to implement fire extinguishing, ensuring urban fire safety. Fire hydrants are usually widely distributed and numerous in quantity, and are easily damaged and illegally used. Existing fire hydrants lack intelligent monitoring functions. When a fire hydrant is damaged and illegally used, or the water supply network has no water or insufficient water pressure, the fire hydrant management department cannot timely understand the status of the on-site fire hydrant and make corresponding treatments. When a fire occurs, if the fire hydrant cannot be used normally, the opportunity to fight the fire will be missed, resulting in significant fire losses. In addition, due to the lack of intelligent monitoring functions, existing fire hydrants cannot implement event-triggered alarms and fault alarm functions, and a large amount of manpower and material resources are required for their inspection work.

[0003] Existing technologies usually can only monitor whether a fire hydrant is opened or closed, cannot monitor the process of opening and closing the fire hydrant and the corresponding opening degree, and there is no special monitoring component for whether there is water output when the fire hydrant is opened, nor is there a self-check function for the status of the fire hydrant. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional intelligent fire hydrant to overcome the defects existing in the above-mentioned prior art.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A multifunctional intelligent fire hydrant includes:

[0007] A fire hydrant body: including a plug body, a plug body provided on the plug body through a cracking ring, a plug cap detachably installed on the top of the plug body, and an intelligent monitor provided in the space formed by the upper part inside the plug body and the plug cap. The intelligent monitor includes a machine box and an Internet of Things module installed on the machine box. The Internet of Things module includes a signal collector, a central processor, and a communication module that are sequentially connected on a circuit board for collecting the status signal of the fire hydrant;

[0008] A control cloud platform: communicates with the communication module through NB-IOT or 4G;

[0009] A monitoring terminal: communicates with the control cloud platform, including a WEB client and a mobile phone client.

[0010] The valve shaft at the top of the fire hydrant passes through the through hole in the center of the machine box and is connected to the upper end of the valve rod through a screw rod. The lower end of the valve rod is connected to the valve flap, driving the valve flap to move up and down to open and close the fire hydrant.

[0011] The described intelligent monitor further includes a fire pipeline water supply pressure monitoring unit, a plug cap opening / closing monitoring unit, a fire hydrant opening monitoring unit, a vibration detection unit, and a liquid level monitoring unit.

[0012] The fire pipeline water supply pressure monitoring unit includes a pressure switch or a pressure sensor installed on the valve flap by means of a thread, and a protective cover for protecting the pressure switch or the pressure sensor. The protective cover is arranged between the lower end of the valve stem and the valve flap. The pressure switch is connected to the signal collector through a pressure switch cable passing through the inside of the valve stem.

[0013] The plug cap opening / closing monitoring unit includes a plug cap micro switch installed at the upper end of the edge of the machine box. The plug cap micro switch is connected to the signal collector. When the plug cap is covered, it presses the contact of the plug cap micro switch to realize the monitoring of the looseness, opening, and damage of the plug cap.

[0014] The fire hydrant opening monitoring unit includes a cam sleeved on the valve shaft, a trigger spring triggered by the rotation of the protruding part of the cam, a valve shaft forward rotation micro switch and a valve shaft reverse rotation micro switch oppositely arranged on both sides of the trigger spring. The valve shaft forward rotation micro switch and the valve shaft reverse rotation micro switch are respectively connected to the signal collector. When the valve shaft rotates, it drives the cam to rotate, and the protruding part of the cam drives the trigger spring to rotate, thereby triggering the valve shaft forward rotation micro switch or the valve shaft reverse rotation micro switch to realize the monitoring of the fire hydrant opening.

[0015] The vibration detection unit includes a vibration switch arranged on the circuit board. The vibration switch is connected to the signal collector.

[0016] The liquid level monitoring unit includes a liquid level switch fixedly installed at the top inside the plug body by means of a nut. The liquid level switch is connected to the signal collector to monitor whether there is water output when the fire hydrant is opened and whether there is a water leakage phenomenon when the fire hydrant is closed.

[0017] The communication module adopts an NB-IOT / 4G communication module, and a two-dimensional code for identity recognition and positioning is also provided on the Internet of Things module.

[0018] The plug body is provided with three water intake ports and one drainage port. The three water intake ports are respectively one Φ100 water intake port and two Φ65 water intake ports. A water intake port blanking cover is also provided on the water intake ports. The drainage port is arranged below the cracking ring.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The multifunctional intelligent fire hydrant provided by the present invention can not only detect the opening and closing of the fire hydrant, accurately obtain the corresponding opening values during the opening and closing processes of the fire hydrant, but also monitor whether there is water output when the fire hydrant is opened and whether there is a fault leakage phenomenon in the closed state. In addition, when the network pressure is lower than the minimum fire network water supply pressure value of 0.14 MPa specified by the national standard, the pressure switch sends an alarm signal of low network pressure to the monitoring platform.

[0021] The pressure switch adopted by the present invention belongs to a passive component and does not consume electric energy by itself during operation. Compared with monitoring the network pressure through an active component pressure sensor, it is more energy-saving and environmentally friendly, and the battery service life is longer.

[0022] At the same time, the intelligent fire hydrant also has a status self-checking function and can regularly send the fire hydrant status information to the monitoring platform so that the fire hydrant management personnel can timely understand the status of the fire hydrant. Brief Description of the Drawings

[0023] Figure 1 It is a sectional structure diagram of the multifunctional intelligent fire hydrant according to an embodiment of the present invention.

[0024] Figure 2 It is a three-dimensional structure diagram of the intelligent detector of the multifunctional intelligent fire hydrant according to an embodiment of the present invention.

[0025] Figure 3 It is a working principle block diagram of the multifunctional intelligent fire hydrant monitoring system according to an embodiment of the present invention.

[0026] Explanation of the marks in the figure:

[0027] 1. Cap, 2. Intelligent monitor, 3. Screw rod, 4. Liquid level switch, 5. Φ100 water intake, 6. Water intake blanking cover, 7. Fire hydrant body, 8. Cracking ring, 9. Drainage port, 10. Hydrant body, 11. Valve flap, 12. Thrust spring, 13. Valve seat, 14. Protective cover, 15. Pressure switch, 16. Pressure switch cable, 17. Valve rod, 18. Cable lock head, 19. Φ65 water intake, 20. Machine box, 21. Cap micro switch, 22. Valve shaft forward rotation micro switch, 23. Intelligent Internet of Things module, 24. Antenna, 25. Valve shaft, 26. Battery pack, 27. Cam, 28. Valve shaft reverse rotation micro switch, 29. Trigger spring. Detailed Embodiment

[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] The present invention provides a multifunctional intelligent fire hydrant, which includes a hydrant body 10, a hydrant body 7 fixed to the hydrant body 10 through a cracking ring 8, a hydrant cap 1 fixed to the top end of the hydrant body 7 through its own thread, and an intelligent monitor 2 arranged inside the hydrant cap 1 at the top of the hydrant body 7. The intelligent monitor 2 includes a machine box 20, and an intelligent Internet of Things module, a hydrant cap microswitch 21, a valve shaft forward rotation microswitch 22, a valve shaft reverse rotation microswitch 28, a trigger spring 29 and a battery pack 26 arranged on the machine box 10. The machine box 20 is a circular box body and is fixed to the top of the upper end of the hydrant body 7. Inside the machine box 10, there are installation bases for the battery pack 26, the intelligent Internet of Things module 23, the trigger spring 29 and the microswitches.

[0030] The intelligent Internet of Things module 23 is respectively connected to a liquid level switch 4, a hydrant cap microswitch 21, a valve shaft forward rotation microswitch 22, a valve shaft reverse rotation microswitch 28 and a pressure switch 15, and communicates with an intelligent terminal through a cloud monitoring platform. The liquid level switch 15 is installed inside the hydrant body 7 and is fixed to the top of the hydrant body with a nut.

[0031] The multifunctional intelligent fire hydrant further includes a valve shaft 25 installed at the top end of the hydrant body 7 and a cam 27 installed on the valve shaft 25. The valve shaft 25 is connected to a valve rod 17 through a screw 3 and drives the valve rod 17 to move up and down. The valve flap 11 at the lower end of the valve rod 17 moves up and down together with the valve rod 17 to realize the opening and closing control of the fire hydrant. Six convex blocks are evenly distributed on the outer circle of the cam 27. When the valve shaft 25 rotates, the cam rotates together with the valve shaft 25. When the valve shaft 25 rotates clockwise or counterclockwise, the convex blocks on the outer circle of the cam 27 will touch the trigger spring 29 installed on the machine box, and the trigger spring 29 will touch the valve shaft forward rotation microswitch 22 or the valve shaft reverse rotation microswitch 28. The accumulator in the intelligent Internet of Things module will automatically record the number of times each microswitch is triggered, and calculate the opening degree through the number of times and the number of protrusions. The pressure switch 15 in the protective cover 14 is fixed to the valve flap 11 through its own thread, and its pressure switch cable 16 passes through the valve rod 17 and is connected to the intelligent Internet of Things module to detect the pipeline pressure. Two Φ65 water intake ports 19 and blank caps and a Φ100 water intake port 5 and blank cap are opened on the side wall of the fire hydrant, and it further includes a drain port 9 opened on the side wall of the fire hydrant below the cracking ring 8.

[0032] The hydrant cap microswitch 21 is installed at the upper end of the edge of the machine box 20 and is connected to the intelligent Internet of Things module. When the hydrant cap 1 is covered, it presses down on the contact of the hydrant cap microswitch 21. When the hydrant cap 1 is loose, opened or damaged, the hydrant cap 1 cannot normally press the contact of the hydrant cap microswitch 21, so it can be used to monitor whether the hydrant cap is loose, opened or damaged.

[0033] The intelligent Internet of Things module includes a central processor, a signal collector, a communication module, and a vibration switch disposed on an electronic circuit board. The central processor is connected to a liquid level switch 4, a cap microswitch 21, a valve shaft forward rotation microswitch 22, a valve shaft reverse rotation microswitch 28, a pressure switch 15, and a vibration switch through the signal collector, and communicates with a cloud monitoring platform through a wireless communication module.

[0034] Embodiment 1:

[0035] As Figure 1-2 shown, in this example of the multi-functional intelligent fire hydrant, its intelligent monitor 2 installed in the cap 1 at the top of the fire hydrant body 7 includes: a machine box 20, a cap microswitch 21, a valve shaft forward rotation microswitch 22, an intelligent Internet of Things module 23, an antenna 24, a valve shaft 25, a battery pack 26, a cam 27, a valve shaft reverse rotation microswitch 28, a trigger spring 29, and a vibration switch built in the circuit board;

[0036] The intelligent monitoring system terminal includes: a WEB client and a mobile client.

[0037] When the valve shaft 25 installed at the top of the fire hydrant body 7 rotates, it drives the cam 27 installed on the valve shaft 25 to rotate. Six bumps are evenly distributed on the outer circle of the cam 27. When the valve shaft 25 rotates clockwise or counterclockwise, the bumps on the cam 27 will touch the trigger spring 29 installed on the machine box 20, and the trigger spring 29 will touch the valve shaft forward rotation microswitch 22 or the valve shaft reverse rotation microswitch 28. The intelligent Internet of Things module 23 determines the rotation direction of the fire hydrant valve shaft 25 according to the different triggered microswitches, thereby determining whether the fire hydrant is open or closed, and records the number of times the triggered microswitch is triggered, so as to calculate the corresponding opening value of the fire hydrant.

[0038] Specifically, when the valve shaft 25 rotates clockwise, the trigger spring 29 triggers the forward rotation microswitch 22 of the valve shaft. The intelligent Internet of Things module 23 will automatically record the number of times the microswitch 22 is triggered. Each time the microswitch 22 is triggered, the accumulator of the central processor of the intelligent Internet of Things module 23 will automatically subtract one. When the valve shaft 25 rotates counterclockwise, the trigger spring 29 triggers the reverse rotation microswitch 28 of the valve shaft. Each time the microswitch 28 is triggered, the accumulator of the central processor of the intelligent Internet of Things module 23 will automatically add one. The minimum value of the number of times the microswitch is triggered in the accumulator is zero. When the fire hydrant is opened from fully closed to fully open position, a maximum value of the number of times the microswitch is triggered will be generated in the accumulator of the central processor. The central processor uses this maximum value as the opening value of the fully open position of the fire hydrant, and its opening value is 100%. The minimum value 0 of the number of times the microswitch is triggered is used as the opening value of the fully closed position of the fire hydrant. The opening values of the remaining positions are calculated as percentages in sequence. When the fire hydrant is opened or closed, the intelligent Internet of Things module 23 will upload the opening value of the fire hydrant calculated by its central processor to the control cloud platform, so that the control cloud platform can timely obtain the opening value of the fire hydrant opened or closed to any position.

[0039] The intelligent monitor in this example can also be used to monitor the rotation direction and rotation process of the valve shafts of other valves, so as to calculate the opening value of the valve.

[0040] In this example, the liquid level switch 4 is installed inside the fire hydrant body 7, passes through its top and is fixed with a nut. The liquid level switch 4 is used to monitor whether there is water output when the fire hydrant is opened and whether there is a leakage phenomenon when the fire hydrant is closed. When the valve shaft 25 is rotated counterclockwise to open the fire hydrant, if the liquid level switch 4 operates, it means that there is water output when the fire hydrant is opened, and at the same time it also means that the water supply network of the fire hydrant is normal. The intelligent Internet of Things module 23 will send a message of normal water intake when the fire hydrant is opened and used to the control cloud platform; if the liquid level switch 4 does not operate, it means that there is no water output when the fire hydrant is opened, and at the same time it also means that the water supply network of the fire hydrant is abnormal. The intelligent Internet of Things module 23 will send a message of abnormal water intake when the fire hydrant is opened and used to the control cloud platform; when the fire hydrant is in the closed state, if the liquid level switch 4 operates, it means that there is a fault leakage phenomenon in the fire hydrant. The intelligent Internet of Things module 23 will send an alarm message of fire hydrant leakage to the control cloud platform.

[0041] The pressure switch 15 is arranged inside the protective cover 14. The pressure switch 15 is fixed on the valve flap 11 through its own thread. The pressure switch cable 16 passes through the inside of the valve stem 17, then passes out from the upper end of the valve stem 17, and is fixed at the upper end of the valve stem 17 through the cable gland 18, and then passes out from the top inside the bolt body 7 and enters the intelligent monitor 2 to be connected with the intelligent Internet of Things module 23, which is used to detect the pipeline pressure. When the pipeline pressure is lower than 0.14 MPa specified by the national standard, the pressure switch 15 acts. After receiving the action signal, the intelligent Internet of Things module 23 sends an alarm signal of low pipeline pressure to the platform.

[0042] The intelligent monitor 2 in this example further includes a bolt cap microswitch 21 installed at the upper edge of the machine box 20. The microswitch 21 contacts the bolt cap 1 of the fire hydrant, which is used to monitor whether the bolt cap 1 is loose or damaged, and sends the signal to the intelligent Internet of Things module 23 to monitor whether the intelligent monitor 2 is damaged.

[0043] In this example, a vibration switch is built in the circuit board of the intelligent Internet of Things module 23 of the intelligent monitor 2. When the fire hydrant is impacted, the intelligent Internet of Things module 23 sends an alarm signal that the fire hydrant has been collided.

[0044] The intelligent Internet of Things module 23 is also provided with a QR code for identity recognition. By scanning the QR code, the identity recognition and positioning functions are realized.

[0045] As Figure 3 shown, the intelligent Internet of Things module includes: a signal collector, a central processor, and a communication module. Among them, the signal collector is used to collect the signals of the liquid level switch 4, the bolt cap microswitch 21, the valve shaft forward rotation microswitch 22, the valve shaft reverse rotation microswitch 28, the pressure switch 15, and the vibration switch. Since the fire hydrant is used very infrequently, it cannot be guaranteed whether the acquisition port of its collector is normal if there is no event triggering for a long time. Therefore, the signal collector in this example also has the function of self-checking the acquisition port; the central processor mainly analyzes and processes the signals collected by the signal collector to judge the state of the fire hydrant. Then the result is sent to the communication module. The communication module is used to send the data processed by the central processor to the control cloud platform. Then the information is queried through the supporting software of the client. The client includes: a WEB client and a mobile client. The WEB client can not only query the data information, but also further analyze the data, and can realize the scientific management of the fire hydrant; the mobile client is used for data information query and data upload.

[0046] Embodiment 2:

[0047] In the multi-functional intelligent fire hydrant in this example, on the basis of Embodiment 1, the pressure switch 15 installed on the valve flap 11 of the fire hydrant is replaced with a pressure sensor to monitor the pipe network pressure. Since the pressure sensor can detect the specific pressure value of the pipe network and send the detected pipe network pressure value to the monitoring platform through the intelligent Internet of Things module 23, the platform can compare the set low-pressure alarm value with the actual detected value of the pipe network pressure. When it is detected that the value is lower than the alarm setting value of the platform, the platform sends out an alarm signal.

[0048] The multi-functional intelligent fire hydrant of the present invention can obtain the opening value of the fire hydrant, and thus can estimate the water consumption of the fire hydrant based on the pipe network pressure value, the opening value of the fire hydrant, and the opening and use time of the fire hydrant, providing data support for the water use management of the fire hydrant.

Claims

1. A multi-functional intelligent fire hydrant, characterized in that, Comprising: Fire hydrant body: including a hydrant body (10), a hydrant body (7) arranged on the hydrant body (10) through a cracking ring (8), a hydrant cap (1) detachably installed on the top of the hydrant body (7), and an intelligent monitor (2) arranged in the upper part of the hydrant body (7) and forming a space with the hydrant cap (1). The intelligent monitor (2) includes a machine box (20) and an Internet of Things module (23) installed on the machine box (20). The Internet of Things module (23) includes a signal collector, a central processor, and a communication module that are sequentially connected on a circuit board for collecting the status signals of the fire hydrant; Control cloud platform: Communicates with the communication module through NB-IOT or 4G; Monitoring terminal: Communicates with the control cloud platform, including a WEB client and a mobile client; The valve shaft (25) at the top of the fire hydrant passes through the through hole in the center of the machine box (20) and is connected to the upper end of the valve stem (17) through a screw (3). The lower end of the valve stem (17) is connected to the valve flap (11), driving the valve flap to move up and down to realize the opening and closing of the fire hydrant; The intelligent monitor (2) further includes a fire protection pipe network water supply pressure monitoring unit, a hydrant cap opening and closing monitoring unit, a fire hydrant opening degree monitoring unit, a vibration detection unit, and a liquid level monitoring unit; The fire protection pipe network water supply pressure monitoring unit includes a pressure switch (15) or a pressure sensor installed on the valve flap (11) by threads and a protective cover (14) for protecting the pressure switch (15) or the pressure sensor. The protective cover (14) is arranged between the lower end of the valve stem (17) and the valve flap (11). The pressure switch (15) is connected to the signal collector through a pressure switch cable (16) passing through the inside of the valve stem (17); The fire hydrant opening degree monitoring unit includes a cam (27) sleeved on the valve shaft (25), a trigger spring (29) triggered by the rotation of the protruding part of the cam (27), a valve shaft forward rotation micro switch (22) and a valve shaft reverse rotation micro switch (28) oppositely arranged on both sides of the trigger spring (29). The valve shaft forward rotation micro switch (22) and the valve shaft reverse rotation micro switch (28) are respectively connected to the signal collector. When the valve shaft (25) rotates, it drives the cam (27) to rotate, and the protruding part of the cam (27) drives the trigger spring (29) to rotate, thereby triggering the valve shaft forward rotation micro switch (22) or the valve shaft reverse rotation micro switch (28) to realize the monitoring of the fire hydrant opening degree.

2. The multifunctional intelligent fire hydrant according to claim 1, characterized in that, The hydrant cap opening and closing monitoring unit includes a hydrant cap micro switch (21) installed at the upper end of the edge of the machine box (20). The hydrant cap micro switch (21) is connected to the signal collector. When the hydrant cap (1) is covered, it presses the contact of the hydrant cap micro switch (21) to realize the monitoring of the loosening, opening, and damage of the hydrant cap; 3. The multifunctional intelligent fire hydrant according to claim 1, characterized in that, The vibration detection unit includes a vibration switch arranged on the circuit board. The vibration switch is connected to the signal collector; 4. A multifunctional intelligent fire hydrant according to claim 1, characterized in that, The liquid level monitoring unit includes a liquid level switch (4) fixedly installed at the top inside the hydrant body (7) through a nut. The liquid level switch (4) is connected to the signal collector for monitoring whether there is water output when the fire hydrant is opened and whether there is a water leakage phenomenon when the fire hydrant is closed.

5. A multifunctional intelligent fire hydrant according to claim 1, characterized in that, The communication module uses an NB-IOT / 4G communication module, and a two-dimensional code for identity recognition and positioning is also provided on the Internet of Things module (23).

6. The multifunctional intelligent fire hydrant according to claim 1, characterized in that, Three water intake ports and a drain port (9) are provided on the bolt body (7). The three water intake ports are respectively a Φ100 water intake port (5) and two Φ65 water intake ports (19). A water intake port blanking cover (6) is also provided on the water intake ports. The drain port (9) is arranged below the cracking ring (8).

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