Intelligent fire hydrant based on NB-IoT

Abstract

The embodiment of the utility model relates to the technical field of fire hydrants, in particular to an intelligent fire hydrant based on NB-IoT (Narrow Band Internet of Things), comprising: a moving rod vertically arranged; the movable rod limiting piece is detachably connected with the inner peripheral wall of the fire hydrant main body; the floating ball is connected with the moving rod; the pressing piece is connected with the axial top end of the moving rod; the pressure sensor is arranged on a top cover plate in the fire hydrant top cover, and when the moving rod moves to the first height, the pressure sensor is in butt joint with the pressing piece; the controller is arranged on a top cover plate in the fire hydrant top cover, and the controller is electrically connected with the pressure sensor; and the NB-IoT communication module is arranged on a top cover plate in the fire hydrant top cover, and the controller is wirelessly connected with the monitoring platform through the NB-IoT communication module. According to the intelligent fire hydrant, the line layout is simpler and more convenient, and the phenomenon of water leakage of the fire hydrant main body is avoided.

Description

Technical Field

[0001] The embodiments of this specification relate to the technical field of fire hydrants, and specifically to an NB-IoT-based intelligent fire hydrant. Background Art

[0002] A fire hydrant, also known as a fire plug, is a fixed fire-fighting tool. Fire hydrants are provided everywhere in the city to provide fire-fighting water for firefighters during the rescue process.

[0003] Fire hydrants include two types: indoor fire hydrants and outdoor fire hydrants. Outdoor fire hydrants include two types: above-ground outdoor fire hydrants and underground outdoor fire hydrants. Since the main body of the above-ground outdoor fire hydrant is located above the ground, it is easily accessible to criminals. There are often cases where criminals illegally open the fire hydrant and privately use the fire-fighting water.

[0004] In the prior art, a water pressure detection sensor is usually arranged inside the main body of the fire hydrant to monitor the water usage situation through the water pressure detection sensor. However, setting up the water pressure detection sensor requires laying corresponding wires inside the main body of the fire hydrant. The wire laying is relatively troublesome and there is also a risk of water leakage. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the embodiments of this specification propose an NB-IoT-based intelligent fire hydrant, including:

[0006] A moving rod, vertically arranged;

[0007] A moving rod limiting member, detachably connected to the inner peripheral wall of the fire hydrant main body, and when the moving rod limiting member is connected to the moving rod, the moving rod is allowed to move up and down between a first height and a second height;

[0008] A floating ball, connected to the moving rod;

[0009] A pressing member, connected to the axial top end of the moving rod;

[0010] A pressure sensor, arranged on the top cover plate inside the fire hydrant top cover, and when the moving rod moves to the first height, the pressure sensor is docked with the pressing member;

[0011] A controller, arranged on the top cover plate inside the fire hydrant top cover, and the controller is electrically connected to the pressure sensor;

[0012] An NB-IoT communication module, arranged on the top cover plate inside the fire hydrant top cover, and the controller is wirelessly connected to the monitoring platform through the NB-IoT communication module.

[0013] Preferably, the moving rod is provided with a floating ball installation section for sleeving the floating ball. The floating ball installation section is provided with connecting threads, and a floating ball support thread ring and a floating ball limit thread ring are also provided on the floating ball installation section.

[0014] Preferably, the pressing member is a horizontally arranged pressing plate.

[0015] Preferably, the moving rod is further connected with a horizontal connecting plate and a vertical plugging plate.

[0016] Preferably, the moving rod limiting member includes:

[0017] A plugging support body, which is provided with a plugging opening for assembling and connecting with the vertical plugging plate;

[0018] A horizontal support plate, which is connected with the plugging support body;

[0019] A vertical mounting plate, which is connected with the horizontal support plate, and the vertical mounting plate is provided with a mounting hole.

[0020] Preferably, a positioning support block is further arranged on one side of the vertical mounting plate in contact with the inner peripheral wall of the fire hydrant main body.

[0021] Preferably, the plugging support body is provided with a ball groove on the inner peripheral wall of the plugging opening, and balls are arranged in the ball groove.

[0022] Preferably, a waterproof film covering the pressure sensor is arranged on the top cover plate.

[0023] Preferably, an alarm is further arranged on the top cover of the fire hydrant and is electrically connected with the controller;

[0024] An identity recognition module is further arranged on the top cover of the fire hydrant and is electrically connected with the controller.

[0025] Preferably, the identity recognition module includes an IC card reader electrically connected with the controller, and an IC card plugging opening arranged on the top cover of the fire hydrant and docked with the IC card reader.

[0026] Beneficial effects

[0027] For the intelligent fire hydrant in the embodiment of the present specification, components such as the moving rod, the moving rod limiting member, and the floating ball located inside the fire hydrant main body do not need to be wired. Although components such as the pressure sensor, the controller, and the NB-IoT communication module need to be wired, only wiring needs to be carried out on the top cover of the fire hydrant, and the wiring is more convenient. Moreover, since the wiring is not carried out on the fire hydrant main body, water leakage of the fire hydrant main body will not occur.

[0028] Further or more detailed beneficial effects will be described in combination with specific embodiments in the specific implementation manners. Description of the drawings

[0029] Figure 1 It is a schematic structural diagram of the NB-IoT-based intelligent fire hydrant in the embodiment of the present specification;

[0030] Figure 2 It is a schematic structural diagram of components such as the moving rod in the embodiments of this specification;

[0031] Figure 3 It is a schematic structural diagram of components such as the moving rod limit member in the embodiments of this specification;

[0032] Figure 4 It is a schematic structural diagram of the moving rod limit member in the embodiments of this specification;

[0033] Figure 5 It is a top view of the moving rod limit member in the embodiments of this specification;

[0034] Figure 6 It is a schematic structural diagram of the moving rod moving to the first height in the embodiments of this specification. Detailed implementation manners

[0035] The technical solution of the present invention will be further described below in conjunction with the drawings and through specific implementation manners.

[0036] Embodiment 1:

[0037] As Figure 1 shown, this embodiment provides an NB-IoT-based intelligent fire hydrant, including: a moving rod 100, a moving rod limit member 200, a floating ball 400, a pressing member 500, a pressure sensor 600, a controller 800, and an NB-IoT communication module 900.

[0038] The moving rod 100 is vertically arranged.

[0039] The moving rod limit member 200 is detachably connected to the inner peripheral wall of the fire hydrant main body 300, and when the moving rod limit member 200 and the moving rod 100 are in a connected state, the moving rod 100 is allowed to move up and down between the first height and the second height.

[0040] The floating ball 400 is connected to the moving rod 100.

[0041] The pressing member 500 is connected to the axial top end of the moving rod 100.

[0042] The pressure sensor 600 is arranged on the top cover plate 710 inside the fire hydrant top cover 700, and when the moving rod 100 moves to the first height, the pressure sensor 600 is docked with the pressing member 500.

[0043] The controller 800 is arranged on the top cover plate 710 inside the fire hydrant top cover 700, and the controller 800 is electrically connected to the pressure sensor 600.

[0044] The NB-IoT communication module 900 is arranged on the top cover plate 710 inside the fire hydrant top cover 700, and the controller 800 is wirelessly connected to the monitoring platform through the NB-IoT communication module 900.

[0045] As Figure 1 shown, when the fire hydrant is not in use, the moving rod 100 is hung on the moving rod stopper 200 by its own gravity. At this time, the moving rod 100 is located at the second height position, and the pressing member 500 at the axial top end of the moving rod 100 does not contact the pressure sensor 600, and the pressure value detected by the pressure sensor 600 is 0.

[0046] As Figure 6 shown, when the fire hydrant is in use, the moving rod 100 moves upward through the buoyancy of the float 400 until the moving rod 100 is located at the first height position. At this time, the pressing member 500 at the axial top end of the moving rod 100 contacts the pressure sensor 600, and the pressure sensor 600 detects a certain pressure value, which is approximately equal to the buoyancy of the moving rod 100 and the float 400 and other components minus the gravity of the moving rod 100 and the float 400 and other components. During the upward movement of the moving rod 100, the moving rod stopper 200 plays a role in limiting the moving rod 100 in the horizontal direction, so that the moving rod 100 can only move upward.

[0047] When the water use of the fire hydrant ends, the buoyancy of the moving rod 100 and the float 400 and other components gradually becomes smaller. When the gravity of the moving rod 100 and the float 400 and other components is greater than the buoyancy, the moving rod 100 moves downward until the moving rod 100 moves to the second height position. During the downward movement of the moving rod 100, the moving rod stopper 200 plays a role in limiting the moving rod 100 in the horizontal direction, so that the moving rod 100 can only move downward. When the moving rod 100 is located at the second height position, the moving rod stopper 200 plays a supporting role for the moving rod 100, the float 400 and other components.

[0048] The controller can obtain the pressure value detected by the pressure sensor 600 and transmit the obtained pressure value to the monitoring platform through the NB-IoT communication module 900. Narrow Band Internet of Things (NB-IoT) is an important branch of the Internet of Everything. NB-IoT is built on the cellular network, only needs to consume about 180 kHz of bandwidth, can be directly deployed on the GSM network, UMTS network or LTE network, and can reduce the deployment cost and achieve smooth upgrade.

[0049] After receiving the pressure value data, the monitoring platform can determine the water usage situation of the corresponding fire hydrant based on the pressure value data. Then, by verifying the water usage situation, it can be determined whether the corresponding fire hydrant has been stolen water. For example, if the pressure value detected by a certain fire hydrant A from 5:28 am to 6:17 am on XX / XX / XX remains within the range of 4V to 5V, it indicates that the fire hydrant A was in use during this period. At this time, it can be verified with the relevant staff whether they used water from the fire hydrant A during this period. If so, it means that the water usage of the fire hydrant A is normal; if not, it means that the water usage of the fire hydrant A is abnormal and it is very likely that water has been stolen.

[0050] In the intelligent fire hydrant of this embodiment, components such as the moving rod 100, the moving rod limiting member 200, and the floating ball 400 located inside the fire hydrant main body 300 do not require wiring. Although components such as the pressure sensor 600, the controller 800, and the NB-IoT communication module 900 require wiring, only wiring needs to be carried out on the fire hydrant top cover 700. The wiring is more convenient, and since the wiring is not carried out on the fire hydrant main body 300, it will not cause water leakage in the fire hydrant main body 300.

[0051] Further, as Figure 2 shown, the moving rod 100 is provided with a floating ball installation section for sleeving the floating ball 400. A connecting thread 110 is provided on the floating ball installation section, and a floating ball support thread ring 120 and a floating ball limiting thread ring 130 are also provided on the floating ball installation section.

[0052] In this embodiment, the appropriate number and size of floating balls 400 can be selected according to actual usage requirements, so that the moving rod 100 has an upward pressure under the action of buoyancy (the difference between the buoyancy generated by the floating ball 400 and the gravity of components such as the moving rod 100), and this pressure is relatively appropriate for the pressure sensor 600, which can enable the pressure sensor 600 to obtain an obvious pressure value without damaging the pressure sensor 600.

[0053] After the quantity and size of the floating balls 400 are determined, first connect the floating ball limiting threaded ring 130 to the connecting thread 110 of the floating ball installation section, then fit all the floating balls 400 onto the floating ball installation section, and finally connect the floating ball supporting threaded ring 120 to the connecting thread 110 of the floating ball installation section. When the moving rod 100 is placed vertically, from top to bottom, there are: the floating ball limiting threaded ring 130, the floating balls 400, and the floating ball supporting threaded ring 120. The floating ball supporting threaded ring 120 is used to provide a supporting force for the floating balls 400, and in order to effectively support the floating balls 400, two or more floating ball supporting threaded rings 120 can be provided. The floating balls 400 are used to provide an upward moving force for the moving rod 100. The floating ball limiting threaded ring 130 is used to prevent the floating balls 400 from moving upward on the moving rod 100 (i.e., limit the position of the floating balls 400 on the moving rod 100), and in order to effectively limit the floating balls 400, two or more floating ball limiting threaded rings 130 can be provided.

[0054] Further, as Figure 2 shown, the pressing member 500 is a horizontally arranged pressing plate. The pressing member 500 can be a circular pressing plate. Friction protrusions can be provided on the surface of the pressing plate for contacting the pressure sensor 600, so that the pressing member 500 can smoothly trigger the pressure sensor 600.

[0055] Further, as Figure 3 and Figure 4 shown, the moving rod 100 is further connected with a horizontal connecting plate 140 and a vertical plug-in plate 150, and the horizontal connecting plate 140 and the vertical plug-in plate 150 are integrally formed. The horizontal connecting plate 140 and the vertical plug-in plate 150 are perpendicular to each other, similar to an L shape.

[0056] The moving rod limiting member 200 includes an integrally formed plug-in support body 210, a horizontal support plate 220, and a vertical mounting plate 230.

[0057] The plug-in support body 210 is provided with a plug-in port 211 for assembling and connecting with the vertical plug-in plate 150. The plug-in port 211 is vertically arranged, and the vertical plug-in plate 150 is inserted into the plug-in port 211 from top to bottom. The size of the plug-in port 211 is slightly larger than the cross-sectional area of the vertical plug-in plate 150, so that the plug-in port 211 can limit the horizontal direction of the vertical plug-in plate 150, and thus the vertical plug-in plate 150 can only move up and down relative to the plug-in port 211.

[0058] When the moving rod 100 moves upward, it will drive the vertical insertion plate 150 to move upward synchronously in the insertion opening 211. Since the insertion opening 211 can limit the vertical insertion plate 150 in the horizontal direction, the moving rod 100 can only move upward. The height of the vertical insertion plate 150 is greater than that of the insertion opening 211. When the moving rod 100 moves upward to the first height position (i.e., the pressing member 500 contacts the pressure sensor 600), at least a part of the vertical insertion plate 150 is still located in the insertion opening 211.

[0059] When the moving rod 100 moves downward, it will drive the vertical insertion plate 150 to move downward synchronously in the insertion opening 211. Since the insertion opening 211 can limit the vertical insertion plate 150 in the horizontal direction, the moving rod 100 can only move downward. When the moving rod 100 moves downward until the horizontal connecting plate 140 contacts the top of the insertion and support body 210, the moving rod 100 just reaches the second height position.

[0060] The horizontal support plate 220 is vertically connected to the insertion and support body 210.

[0061] The vertical mounting plate 230 is vertically connected to the horizontal support plate 220, and the vertical mounting plate 230 is provided with a mounting hole 231. The vertical mounting plate 230 is connected and fixed to the inner peripheral wall of the fire hydrant main body 300 through the mounting hole 231 and a connecting member (such as a fastening screw). When the connection between the vertical mounting plate 230 and the fire hydrant main body 300 is completed, the moving rod limiting member 200 is installed. At this time, only the vertical insertion plate 150 on the moving rod 100 needs to be inserted into the insertion opening 211 from top to bottom, and the installation operation is very simple. When disassembling, only the vertical insertion plate 150 on the moving rod 100 needs to be pulled out from the insertion opening 211 from bottom to top, and then the vertical mounting plate 230 is detached from the inner peripheral wall of the fire hydrant main body 300 through the mounting hole 231 and the connecting member, which is also very simple.

[0062] In short, the moving rod limiting member 200 in this embodiment enables the moving rod 100 to only move up and down, and also makes the disassembly and assembly operations of the moving rod 100 and the fire hydrant main body 300 very simple.

[0063] Further, as Figure 4 shown, a positioning support block 232 is further provided on the side of the vertical mounting plate 230 in contact with the inner peripheral wall of the fire hydrant main body 300. The inner peripheral wall of the fire hydrant main body 300 is provided with a positioning support groove for assembling and connecting with the positioning support block 232.

[0064] First, when installing the moving rod limiter 200, first snap the positioning support block 232 on the moving rod limiter 200 into the positioning support groove, and then connect and fix the vertical mounting plate 230 to the fire hydrant main body 300. At this time, as long as the vertical insertion plate 150 on the moving rod 100 is inserted into the insertion port 211, the pressing member 500 will definitely be aligned with the pressure sensor 600. Therefore, the positioning support block 232 plays a positioning role.

[0065] Secondly, the setting of the positioning support block 232 and the positioning support groove makes the connection between the moving rod limiter 200 and the fire hydrant main body 300 more stable. Furthermore, the setting of the moving rod 100 is very stable and will not become loose and unstable due to the long-term up and down flow of water.

[0066] Furthermore, as Figure 5 shown, the insertion support body 210 is provided with a ball groove on the inner peripheral wall of the insertion port 211, and balls 212 are arranged in the ball groove. The insertion support body 210 is in contact connection with the insertion port 211 through the balls 212. The setting of the balls 212 makes the relative up and down movement of the insertion support body 210 with respect to the insertion port 211 smoother, avoiding the situation where the insertion support body 210 is stuck in the insertion port 211 and causing the moving rod 100 to not move up and down normally.

[0067] Furthermore, a waterproof film covering the pressure sensor 600 is provided on the top cover plate 710. When the pressure sensor 600 does not have a waterproof function, a waterproof film can be provided for the pressure sensor 600 to prevent the splashed water from soaking the pressure sensor 600 and causing the pressure sensor 600 to fail.

[0068] Furthermore, as Figure 6 shown, an alarm 720 electrically connected to the controller 800 is also provided on the fire hydrant top cover 700.

[0069] An identity recognition module 730 electrically connected to the controller 800 is also provided on the fire hydrant top cover 700. The identity recognition module 730 includes an IC card reader electrically connected to the controller 800, and an IC card insertion port provided on the fire hydrant top cover 700 and docked with the IC card reader.

[0070] The staff is equipped with an IC card. When the staff uses the fire hydrant, they can first insert their IC card into the IC card insertion port, so that the IC card reader can recognize the IC card information and send the IC card information to the controller 800.

[0071] When the pressure value obtained by the controller 800 is not 0 and the controller 800 does not receive the IC card information, the controller 800 will control the alarm 720 to start and send an alarm to the person stealing the fire water. At this time, the monitoring platform only receives the pressure value data. Based on this, the monitoring platform can determine that there is abnormal water use in the fire hydrant.

[0072] When the pressure value obtained by the controller 800 is not 0 and the controller 800 receives the IC card information, it means that the staff is using the fire hydrant, and the alarm 720 will not start. At this time, the monitoring platform not only receives the pressure value data but also receives the IC card information. Based on this, the monitoring platform can determine that the fire hydrant is in normal water use.

[0073] The above embodiments only describe the preferred embodiments of the present invention and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various variations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. An intelligent fire hydrant based on NB-IoT, characterized in that: include: A mobile rod (100) is arranged vertically; A moving rod stopper (200) is detachably connected to the inner peripheral wall of the fire hydrant body (300), and the moving rod stopper (200) and the moving rod (100) are connected so as to allow the moving rod (100) to move up and down between a first height and a second height; A floating ball (400) connected to the moving rod (100); A pressing member (500) connected to the axial top end of the moving rod (100); A pressure sensor (600) is arranged on a top cover plate (710) inside the fire hydrant top cover (700), and when the moving rod (100) moves to a first height, the pressure sensor (600) is docked with the pressing member (500); A controller (800) is disposed on a top cover plate (710) inside the fire hydrant top cover (700), and the controller (800) is electrically connected to the pressure sensor (600); The NB-IoT communication module (900) is arranged on the top cover plate (710) inside the fire hydrant top cover (700), and the controller (800) is wirelessly connected to the monitoring platform via the NB-IoT communication module (900).

2. The intelligent fire hydrant according to claim 1, characterized in that: The movable rod (100) is provided with a float installation section for sleeve-engaging the float (400), the float installation section is provided with a connecting thread (110), and the float installation section is also provided with a float supporting thread ring (120) and a float limiting thread ring (130).

3. The intelligent fire hydrant according to claim 1, characterized in that: The pressing member (500) is a horizontally arranged pressing plate.

4. The intelligent fire hydrant according to claim 1, characterized in that: The moving rod (100) is also connected to a horizontal connecting plate (140) and a vertical plug-in plate (150).

5. The intelligent fire hydrant according to claim 4, characterized in that: The moving rod limiting member (200) comprises: A plug-in support body (210) is provided with a plug-in interface (211) for assembly and connection with the vertical plug-in board (150); A horizontal support plate (220) connected to the plug-in support body (210); A vertical mounting plate (230) is connected to the horizontal support plate (220), and the vertical mounting plate (230) is provided with a mounting hole (231).

6. The intelligent fire hydrant according to claim 5, characterized in that: A positioning support block (232) is also provided on the side of the vertical mounting plate (230) that contacts the inner peripheral wall of the fire hydrant body (300).

7. The intelligent fire hydrant according to claim 5, characterized in that: The plug-in support body (210) is provided with a ball groove on the inner peripheral wall of the plug-in interface (211), and a ball (212) is arranged in the ball groove.

8. The intelligent fire hydrant according to claim 1, characterized in that: A waterproof membrane covering the pressure sensor (600) is provided on the top cover plate (710).

9. The intelligent fire hydrant according to claim 1, characterized in that: The fire hydrant top cover (700) is also provided with an alarm (720) electrically connected to the controller (800); The fire hydrant top cover (700) is also provided with an identity recognition module (730) electrically connected to the controller (800).

10. The intelligent fire hydrant according to claim 9, characterized in that: The identity recognition module (730) comprises an IC card identifier electrically connected to the controller (800), and an IC card insertion interface arranged on the fire hydrant top cover (700) and docked with the IC card identifier.

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