An intelligent indoor fire hydrant system
By combining a PLC controller and a water flow detection mechanism, the intelligent indoor fire hydrant system achieves automatic water pressure regulation and filter maintenance, solving the shortcomings of water pressure regulation and filter maintenance in traditional systems and ensuring the stable operation of the fire hydrant system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUANAN FIRE IND CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
Smart Images

Figure CN224292406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire hydrant technology, and in particular to an intelligent indoor fire hydrant system. Background Technology
[0002] In modern building fire safety systems, indoor fire hydrant systems, as the most basic and critical fire-fighting facilities, bear the important responsibility of extinguishing initial fires and controlling their spread. Their operational reliability directly affects the safety of life and property within the building. However, traditional indoor fire hydrant systems have significant deficiencies in water pressure management and inlet filter maintenance, making it difficult to meet the ever-increasing demands for fire safety.
[0003] A real-time intelligent monitoring system for indoor fire hydrant water pressure, disclosed in announcement number CN213964952U, includes a pipe, a mechanical tee, a fire hydrant, a rotary valve, an internet-connected pressure acquisition terminal, a signal line, and a pressure sensor. The fire hydrant has a rotary valve installed at its top and a pipe connected to its lower end. A circular hole is drilled 50mm below the connection point between the fire hydrant and the pipe, located on the pipe. The mechanical tee is fixed to the outside of the circular hole on the pipe with clamp screws. The outlet of the mechanical tee coincides with the position of the circular hole on the pipe. A pressure sensor is installed on the outside of the outlet, and the pressure sensor is connected to the internet-connected pressure acquisition terminal via a signal line. This invention does not alter the existing fire protection pipe network or various settings, does not affect the original functions, saves users costs, is comprehensive in function, easy to operate, reduces construction costs, and achieves comprehensive control and early warning.
[0004] While the aforementioned patent achieves the goal of not altering the original fire protection pipe network and various settings, and not affecting the original functions, thus saving costs for users, and is comprehensive in function, easy to operate, and reduces construction costs, achieving all-round control and early warning, the device only detects the water pressure at the outlet and is not easy to automatically adjust the water pressure, resulting in relatively weak flexibility. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] The purpose of this utility model is to provide an intelligent indoor fire hydrant system, which solves the problem mentioned in the background art that it only detects the water pressure at the outlet, does not easily adjust the water pressure automatically, and has weak flexibility.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: an intelligent indoor fire hydrant system, comprising a fire hydrant body and a PLC controller. One side of the PLC controller is electrically connected to a water flow detection mechanism via a power cord, and the other side of the PLC controller is electrically connected to an automatic water pressure regulating mechanism via a power cord. A water inlet is provided on the lower surface of the fire hydrant body, and a filter mechanism is installed in the middle of the water inlet. The water flow detection mechanism includes a flow meter electrically connected to one side of the PLC controller via a power cord, and an alarm light is electrically connected to the surface of the PLC controller via a power cord. The automatic water pressure regulating mechanism includes a pressure gauge electrically connected to the other side of the PLC controller via a power cord, and an electrically controlled valve is electrically connected to one side of the PLC controller via a power cord. The filter mechanism includes a filter box installed in the middle of the water inlet, with two sliding grooves inside the filter box. A coarse filter screen is slidably connected inside one of the sliding grooves, and a fine filter screen is slidably connected inside the other sliding groove.
[0009] As a further embodiment of this utility model, the top of the fire hydrant body is provided with a water outlet, and the electric control valve and pressure gauge are both installed on the surface of the water outlet. The water outlet serves to drain water.
[0010] As a further embodiment of this utility model, a flange connector is installed at the end of the water outlet. The flange connector has several connection holes on its surface. The connection holes serve to install the flange connector.
[0011] As a further embodiment of this utility model, a distribution box is installed on the surface of the PLC controller. The distribution box is fixedly connected to the surface of the fire hydrant body. The distribution box serves to protect the PLC controller.
[0012] As a further embodiment of this utility model, a sealing plate is hinged to one side of the distribution box, and a heat dissipation hole is provided on one side of the distribution box, which serves to dissipate heat.
[0013] As a further embodiment of this utility model, a handle is fixedly connected to the top of both the coarse and fine filter screens, and an anti-slip groove is provided on the surface of the handle, which serves to prevent slipping.
[0014] As a further embodiment of this utility model, a base is fixedly connected to the bottom of the fire hydrant body, and a threaded hole is opened on the surface of the base. A threaded post is threadedly connected inside the threaded hole, and the threaded post serves to fix the base.
[0015] (III) Beneficial Effects
[0016] This utility model provides an intelligent indoor fire hydrant system, which has the following beneficial effects:
[0017] 1. This intelligent indoor fire hydrant system, through the automatic water pressure adjustment mechanism and PLC controller, uses a pressure gauge installed on the surface of the water outlet to detect the water pressure during use. If the water pressure is abnormal, the signal is transmitted to the PLC controller on one side, and the PLC controller then controls the electric valve to open and close, thereby adjusting the opening size of the electric valve and achieving the effect of automatic water pressure adjustment, avoiding the impact of abnormal water pressure on the normal use of the equipment.
[0018] 2. This intelligent indoor fire hydrant system, through the setting of a water flow detection mechanism and a filtration mechanism, first uses a flow meter to detect the flow rate at the inlet. If the flow rate decreases, a signal is transmitted to the PLC controller on one side. The PLC controller then controls the alarm light to sound an alarm, promptly reminding staff to clean and replace the coarse and fine filters inside the filter box, ensuring unobstructed water supply to the fire hydrant system and avoiding the impact of filter blockage on fire extinguishing efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the automatic water pressure regulating mechanism of this utility model;
[0021] Figure 3 This is a schematic diagram of the filter mechanism of this utility model;
[0022] Figure 4 This is a schematic diagram of the main structure of the fire hydrant of this utility model.
[0023] In the diagram: 1. Fire hydrant body; 2. PLC controller; 3. Water flow detection mechanism; 301. Flow meter; 302. Alarm light; 4. Automatic water pressure regulation mechanism; 401. Pressure gauge; 402. Electric control valve; 5. Water inlet; 6. Filtration mechanism; 601. Filter box; 602. Coarse filter screen; 603. Fine filter screen; 7. Water outlet; 8. Flange connector; 9. Distribution box; 10. Sealing plate; 11. Handle; 12. Base; 13. Threaded post. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] Please see Figures 1 to 4 This utility model provides a technical solution: an intelligent indoor fire hydrant system, including a fire hydrant body 1 and a PLC controller 2. One side of the PLC controller 2 is electrically connected to a water flow detection mechanism 3 via a power cord, and the other side of the PLC controller 2 is electrically connected to a water pressure automatic adjustment mechanism 4 via a power cord. Through the setting of the water pressure automatic adjustment mechanism 4 and the PLC controller 2, the water pressure is automatically adjusted to avoid the normal use of the equipment due to abnormal water pressure. A water inlet 5 is opened on the lower surface of the fire hydrant body 1, and a filter mechanism 6 is installed in the middle of the water inlet 5. Through the setting of the water flow detection mechanism 3 and the filter mechanism 6, the water supply of the fire hydrant system is ensured to be unobstructed, and the fire extinguishing efficiency is avoided due to filter clogging.
[0026] The water flow detection mechanism 3 includes a flow meter 301 electrically connected to one side of the PLC controller 2 via a power cord, and an alarm light 302 electrically connected to the surface of the PLC controller 2 via a power cord.
[0027] The automatic water pressure regulating mechanism 4 includes a pressure gauge 401 electrically connected to the other side of the PLC controller 2 via a power cord, and an electric control valve 402 electrically connected to one side of the PLC controller 2 via a power cord.
[0028] The filtration mechanism 6 includes a filter box 601 installed in the middle of the inlet 5. The filter box 601 has two sliding grooves inside. A coarse filter screen 602 is slidably connected inside one of the sliding grooves, and a fine filter screen 603 is slidably connected inside the other sliding groove.
[0029] The fire hydrant body 1 has a water outlet 7 at the top. The electric control valve 402 and pressure gauge 401 are both installed on the surface of the water outlet 7. The water outlet 7 serves to drain water.
[0030] A flange connector 8 is installed at the end of the outlet 7. Several connection holes are provided on the surface of the flange connector 8. The connection holes serve to install the flange connector 8.
[0031] A distribution box 9 is mounted on the surface of the PLC controller 2. The distribution box 9 is fixedly connected to the surface of the fire hydrant body 1. The distribution box 9 serves to protect the PLC controller 2.
[0032] A sealing plate 10 is hinged to one side of the distribution box 9. A heat dissipation hole is provided on one side of the distribution box 9, which serves to dissipate heat.
[0033] Both the top of the coarse filter screen 602 and the fine filter screen 603 are fixedly connected to handles 11. The surface of the handles 11 is provided with anti-slip grooves, which serve to prevent slipping.
[0034] The base 12 is fixedly connected to the bottom of the fire hydrant body 1. The surface of the base 12 is provided with a threaded hole, and a threaded post 13 is threadedly connected inside the threaded hole. The threaded post 13 serves to fix the base 12.
[0035] In this invention, the working steps of the device are as follows:
[0036] First step: When in use, the pressure gauge 401 installed on the surface of the outlet 7 detects the water pressure. If the water pressure is abnormal, the signal is transmitted to the PLC controller 2 on one side, and the PLC controller 2 controls the electric control valve 402 to open and close, thereby adjusting the opening size of the electric control valve 402.
[0037] The second step: When in use, the flow meter 301 first detects the flow rate at the inlet 5. If the flow rate decreases, the signal is transmitted to the PLC controller 2 on one side. The PLC controller 2 then controls the alarm light 302 to sound an alarm, promptly reminding the staff to clean and replace the coarse filter 602 and fine filter 603 inside the filter box 601.
[0038] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0039] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An intelligent indoor fire hydrant system, comprising a fire hydrant body (1) and a PLC controller (2), characterized in that: One side of the PLC controller (2) is electrically connected to a water flow detection mechanism (3) via a power cord, and the other side of the PLC controller (2) is electrically connected to a water pressure automatic adjustment mechanism (4) via a power cord. A water inlet (5) is provided on the lower surface of the fire hydrant body (1), and a filter mechanism (6) is installed in the middle of the water inlet (5). The water flow detection mechanism (3) includes a flow meter (301) electrically connected to one side of the PLC controller (2) via a power cord, and an alarm light (302) is electrically connected to the surface of the PLC controller (2) via a power cord. The automatic water pressure regulating mechanism (4) includes a pressure gauge (401) electrically connected to the other side of the PLC controller (2) via a power cord, and an electric control valve (402) is electrically connected to one side of the PLC controller (2) via a power cord. The filtration mechanism (6) includes a filter box (601) installed in the middle of the inlet (5). The filter box (601) has two grooves inside. A coarse filter screen (602) is slidably connected inside one of the grooves, and a fine filter screen (603) is slidably connected inside the other groove.
2. The intelligent indoor fire hydrant system according to claim 1, characterized in that: The fire hydrant body (1) has a water outlet (7) on its top, and the electric control valve (402) and pressure gauge (401) are both installed on the surface of the water outlet (7).
3. The intelligent indoor fire hydrant system according to claim 2, characterized in that: A flange connector (8) is installed at the end of the outlet (7), and the surface of the flange connector (8) has several connection holes.
4. The intelligent indoor fire hydrant system according to claim 1, characterized in that: A distribution box (9) is mounted on the surface of the PLC controller (2), and the distribution box (9) is fixedly connected to the surface of the fire hydrant body (1).
5. The intelligent indoor fire hydrant system according to claim 4, characterized in that: A sealing plate (10) is hinged to one side of the distribution box (9), and a heat dissipation hole is provided on one side of the distribution box (9).
6. The intelligent indoor fire hydrant system according to claim 1, characterized in that: The top of both the coarse filter (602) and the fine filter (603) is fixedly connected to a handle (11), and the surface of the handle (11) is provided with an anti-slip groove.
7. The intelligent indoor fire hydrant system according to claim 1, characterized in that: The bottom of the fire hydrant body (1) is fixedly connected to a base (12), and a threaded hole is opened on the surface of the base (12), and a threaded post (13) is threadedly connected inside the threaded hole.