Water pipe water pressure sensor for cloud fire fighting

Abstract

The invention discloses a water pipe water pressure sensor for cloud fire fighting, and belongs to the field of sensors. The device comprises a contact frame slidably arranged on the surface of a sensor shell, the contact frame can be fixed to a water pipe through a fixing assembly, the position of a water pressure sensor on the surface of the water pipe can be further stabilized, and meanwhile a vibration sensor is fixedly arranged on the surface of the contact frame and makes contact with the water pipe; when the water pipe shakes under the action of the water hammer effect, the vibration sensor generates different numerical values, the numerical values of the vibration sensor and the numerical values of the water pressure sensor are processed through the stabilizing unit, data of the vibration sensor and the numerical values of the water pressure sensor are fused and screened through the PLC, and the numerical values of the water pressure sensor influenced by the water hammer effect can be screened; numerical values transmitted by the water pressure sensor are more stable and accord with the current use state of the fire hose, so that remote personnel can conveniently know and control the current water pressure state in the fire hose; the contact frame is arranged on the surface of the sensor shell, and the requirements for installation space and installation position are low.

Description

Technical Field

[0001] This invention relates to the field of sensors, and in particular to a water pressure sensor for cloud fire-fighting water pipes. Background Technology

[0002] Water pressure sensors for fire-fighting water pipes are core monitoring devices in fire-fighting systems. They are mainly used to sense changes in water pressure within the pipes in real time to ensure the reliability of fire-fighting water supply. Water pressure sensors are typically installed on straight sections of the pipe, at the rear end of the pump outlet, at the end of the pipe, or before and after valves.

[0003] To achieve dynamic monitoring of water pressure, water pressure sensors are typically installed at the pump outlet. When the pump suddenly starts or stops, valves close rapidly, or the system flow rate changes drastically, the water flow generates a reverse pressure wave (water hammer) due to inertia, causing the pump outlet pressure to spike or drop instantly. Simultaneously, pipeline vibrations caused by water hammer can also affect the sensor. To address the water hammer effect, existing water pressure sensors generally stabilize pressure by changing the installation location or adding slow-closing valves. However, relying solely on external protection measures has limitations. For example, in complex pipe networks, space constraints may prevent extending the installation distance. Furthermore, these measures cannot completely prevent the water pressure sensor's transmitted data from being significantly affected by the water hammer effect.

[0004] In summary, existing technologies for water pressure sensors inside water pipes that rely on external protective measures to address the water hammer effect suffer from limitations such as space constraints preventing the extension of installation distances and significant interference from water hammer on data transmission. Summary of the Invention

[0005] This invention provides a water pressure sensor for cloud fire-fighting water pipes, which can solve the problems of existing water pressure sensors in water pipes relying on external protection measures to deal with water hammer effects, such as limited space leading to the inability to extend the installation distance and data transmission still being significantly interfered with by water hammer.

[0006] A water pressure sensor for cloud-based fire-fighting water pipes includes a sensor housing, a connecting end fixedly connected to the surface of the sensor housing, the connecting end being threaded into the inside of the water pipe, and a stabilizing mechanism disposed between the sensor housing and the water pipe, the stabilizing mechanism comprising: A contact frame is slidably mounted on the surface of the sensor housing. A fixing component is provided between the contact frame and the water pipe. A vibration sensor is fixedly mounted inside the contact frame, and the end of the vibration sensor contacts the water pipe. A stabilizing unit is provided between the vibration sensor and the water pressure sensor. The stabilization unit includes a filter, a PLC controller, and a transmission unit. The output terminal of the vibration sensor is electrically connected to the input terminal of the filter. The output terminals of the filter and the water pressure sensor are electrically connected to the PLC controller. The PLC controller transmits digital signals through the transmission unit.

[0007] Optionally, the PLC controller has a built-in GPS module, and the vibration sensor is an IEPE type triaxial accelerometer or three uniaxial vibration sensors orthogonally mounted in three directions.

[0008] Optionally, the fixing component includes a fixing groove formed on the surface of the contact frame, and a clamp is slidably connected inside the fixing groove, the clamp being fixedly connected to the water pipe.

[0009] Optionally, the contact frame is provided with a frosted block on the side near the pipe.

[0010] Optionally, an outer ring is fixedly connected to the surface of the sensor housing, the outer ring covers the contact frame, and a plurality of push rods are rotatably connected to the surface of the contact frame, with a synchronization component provided between the plurality of push rods and the outer ring.

[0011] Optionally, the synchronization component includes a synchronization gear rotatably disposed on the surface of an outer ring, a plurality of drive gears and operating gears being rotatably connected to the surface of the outer ring, the drive gears and operating gears meshing with the synchronization gear, the push rod being threadedly connected to the drive gear, and a limiting component for limiting rotation being disposed between the operating gear and the outer ring.

[0012] Optionally, the limiting component includes limiting teeth fixedly disposed on the surface of the operating gear, a plurality of limiting teeth fixedly connected to the surface of the outer ring, the plurality of limiting teeth being arranged in a circular array with the center of the operating teeth as the center, the limiting teeth and the limiting teeth meshing, an operating rod fixedly connected to the surface of the operating gear, a limiting rod rotatably connected inside the outer ring, and a connecting spring fixedly connected between the operating rod and the limiting rod.

[0013] Optionally, a water-drawing platform is fixedly connected to the surface of the sensor housing, and an inner ring is fixedly connected to the surface of the water-drawing platform. The projection of the edge of the inner ring toward the water-drawing platform is located on the surface of the water-drawing platform; the water-drawing platform covers a synchronous gear.

[0014] Optionally, the inner ring surface is provided with a sliding groove, the sliding groove is adapted to the operating gear, and the edge of the sliding groove is fixedly connected with a flip arc.

[0015] Optionally, a shielding ring is fixedly connected to the surface of the contact frame. When the height of the shielding ring is greater than the height of the connection end, a conical ring is fixedly connected to the surface of the shielding ring, and the conical ring is in contact with the sensor housing.

[0016] This invention provides a cloud-based fire-fighting water pipe pressure sensor, including a contact frame slidably mounted on the surface of the sensor housing. The contact frame can be fixed to the water pipe by a fixing component, which can further stabilize the position of the water pressure sensor on the water pipe surface. Simultaneously, a vibration sensor is fixedly mounted on the surface of the contact frame. When the water pipe shakes due to the water hammer effect, the vibration sensor will display different values. The values ​​from the vibration sensor and the water pressure sensor are processed by a stabilization unit, and the data are fused and filtered by a PLC controller. This allows filtering of water pressure sensor values ​​affected by the water hammer effect, resulting in more stable values ​​transmitted by the water pressure sensor that match the current operating status of the fire-fighting water pipe. This facilitates remote personnel's understanding and control of the current water pressure status inside the fire-fighting water pipe. Furthermore, the contact frame slidably mounted on the sensor housing surface requires relatively little space during use, reducing requirements on installation space and location. A water-inlet platform is set to cover the synchronous gear, and an indented ring is set at the edge of the water-inlet platform to guide the flow of water droplets on the surface of the sensor housing, restricting the contact between water and the synchronous gear, operating gear, and drive gear. At the same time, a flip arc is set to guide the water flow on the surface of the water-inlet platform and the indented ring to other positions, preventing the water from flowing to and concentrating at the operating gear position. In addition, a shielding ring and a conical ring are set to protect the connection end position and prevent liquid from flowing to the threaded position. Attached Figure Description

[0017] Figure 1 A schematic diagram of a cloud fire-fighting water pipe pressure sensor structure is provided by the present invention; Figure 2 An exploded three-dimensional view of the water pressure sensor provided by the present invention; Figure 3 Provided by the present invention Figure 2 Enlarged view of the local structure at point A; Figure 4 A three-dimensional structural cross-sectional view of the operating gear provided by the present invention; Figure 5 Provided by the present invention Figure 4 Enlarged view of the local structure at point B.

[0018] Explanation of reference numerals in the attached figures: 1. Sensor housing; 21. Connecting end; 22. Contact frame; 23. Vibration sensor; 24. Frosted block; 25. Fixing groove; 26. Clamp; 31. External ring; 32. Push rod; 33. Synchronizing gear; 34. Drive gear; 35. Operating gear; 36. Limiting tooth; 37. Limiting tooth; 38. Limiting rod; 39. Connecting spring; 41. Water intake platform; 42. Indented ring; 43. Overturning arc; 44. Blocking ring; 45. Conical ring. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0020] like Figures 1 to 5 As shown in the figure, an embodiment of the present invention provides a water pressure sensor for cloud fire-fighting water pipes, including a sensor housing 1. A connecting end 21 is fixedly connected to the surface of the sensor housing 1, and the connecting end 21 is threadedly connected to the inside of the water pipe. A stabilizing mechanism is provided between the sensor housing 1 and the water pipe, and the stabilizing mechanism includes: A contact frame 22 is slidably mounted on the surface of the sensor housing 1. A fixing component is provided between the contact frame 22 and the water pipe. A vibration sensor 23 is fixedly mounted inside the contact frame 22. The end of the vibration sensor 23 is in contact with the water pipe. A stabilizing unit is provided between the vibration sensor 23 and the water pressure sensor. The stabilization unit includes a filter, a PLC controller, and a transmission unit. The output terminal of the vibration sensor 23 is electrically connected to the input terminal of the filter. The output terminals of the filter and the water pressure sensor are electrically connected to the PLC controller. The PLC controller transmits digital signals through the transmission unit. It should be noted that the filter can eliminate noise interference and extract the effective vibration sensor 23 features; the PLC controller is a programmable logic controller that can process the data transmitted from the two sensors and reduce the impact of water hammer effect on the data transmitted by the water pressure sensor; the transmission unit includes wired transmission and wireless backup. In summary, the cloud-based fire-fighting water pipe pressure sensor provided by this embodiment of the invention includes a contact frame 22 slidably mounted on the surface of the sensor housing 1. The contact frame 22 can be fixed to the water pipe by a fixing component, which can further stabilize the position of the water pressure sensor on the surface of the water pipe. At the same time, a vibration sensor 23 is fixedly mounted on the surface of the contact frame 22. When the vibration sensor 23 contacts the water pipe and the water pipe shakes under the action of water hammer, the vibration sensor 23 will show different values. The values ​​of the vibration sensor 23 and the water pressure sensor are processed by a stabilization unit, and the data of the two are fused and filtered by a PLC controller. This can filter out the water pressure sensor values ​​affected by the water hammer effect, thereby making the value transmitted by the water pressure sensor more stable and consistent with the current usage status of the fire-fighting water pipe. This makes it convenient for remote personnel to understand and control the current water pressure status inside the fire-fighting water pipe. At the same time, the contact frame 22 is slidably mounted on the surface of the sensor housing 1, requiring relatively little space during use, and has less requirement for installation space and installation position. In some specific implementations, the PLC controller has a built-in GPS module; the PLC controller with a built-in GPS module can mark the time based on the received data, thereby ensuring that the water pressure and vibration sensor 23 data are time-aligned. In some specific implementations, the vibration sensor 23 is an IEPE type triaxial accelerometer or three uniaxial vibration sensors orthogonally mounted in three directions; the IEPE type triaxial accelerometer or three uniaxial vibration sensors orthogonally mounted in three directions can simultaneously detect the acceleration of the vibration sensor 23 in the X, Y, and Z directions; thus, it can measure the water hammer effect on the water pipe in multiple directions; In some specific implementations, the fixing component includes a fixing groove 25 formed on the surface of the contact frame 22, and a clamp 26 is slidably connected inside the fixing groove 25. The clamp 26 is fixedly connected to the water pipe. By directly fixing the contact frame 22 to the water pipe through the clamp 26, it can be ensured that the surface of the contact frame 22 fits the outer wall of the water pipe of any size. In a further embodiment, the contact frame 22 is provided with an abrasive block 24 on the side near the pipe; the abrasive block 24 is provided to contact the water pipe, which can increase the friction between the pipe and the abrasive block 24, stabilize their positions, and thus ensure that the positions of the contact frame 22 and the water pipe will not shift or change. In some specific implementations, an outer ring 31 is fixedly connected to the surface of the sensor housing 1, the outer ring 31 covers the contact frame 22, and a plurality of push rods 32 are rotatably connected to the surface of the contact frame 22. A synchronization component is provided between the plurality of push rods 32 and the outer ring 31. In a further embodiment, the synchronization component includes a synchronization gear 33 rotatably disposed on the surface of an outer ring 31. A plurality of drive gears 34 and operating gears 35 are rotatably connected to the surface of the outer ring 31. Both drive gears 34 and operating gears 35 mesh with the synchronization gear 33. The push rod 32 is threadedly connected to the drive gear 34. A limiting component for limiting rotation is provided between the operating gear 35 and the outer ring 31. The synchronization gear 33 is disposed on the surface of the outer ring 31, and a plurality of drive gears 34 and individual operating gears 35 are disposed that mesh with the synchronization gear 33. The rotation of a single operating gear 35 can drive the synchronization gear 33 to rotate, causing all drive gears 34 to rotate. The rotation of the drive gears 34 can cause the push rod 32 to slide inside the outer ring 31. Thus, the rotation of the synchronization gear 33 can cause all push rods 32 to move downward. In a further embodiment, the limiting component includes limiting teeth 36 fixedly disposed on the surface of the operating gear 35, and a plurality of limiting teeth 37 fixedly connected to the surface of the outer ring 31. The plurality of limiting teeth 37 are arranged in a circular array with the center of the operating teeth as the center. The limiting teeth 36 and the limiting teeth 37 mesh. An operating rod is fixedly connected to the surface of the operating gear 35, and a limiting rod 38 is rotatably connected inside the outer ring 31. A connecting spring 39 is fixedly connected between the operating rod and the limiting rod 38. The meshing limiting teeth 37 and the limiting teeth 36 are provided between the operating gear 35 and the outer ring 31. When the limiting teeth 37 and the limiting teeth 36 mesh, the rotation of the operating gear 35 on the surface of the outer ring 31 can be restricted. At the same time, the spring 39 is fixedly connected between the operating rod and the limiting rod 38. When the operating gear 35 is not lifted, the limiting teeth 37 and the limiting teeth 36 can mesh. In some specific implementations, a water-drawing platform 41 is fixedly connected to the surface of the sensor housing 1, and an inner ring 42 is fixedly connected to the surface of the water-drawing platform 41. The projection of the edge of the inner ring 42 toward the water-drawing platform 41 is located on the surface of the water-drawing platform 41. The water-drawing platform 41 covers the synchronous gear 33. The water-drawing platform 41 covers the synchronous gear 33, and the inner ring 42 is set at the edge of the water-drawing platform 41 to guide the flow of water droplets on the surface of the sensor housing 1 and restrict the water from contacting the synchronous gear 33, the operating gear 35, and the driving gear 34. In a further embodiment, a sliding groove is provided on the surface of the recessed ring 42, the sliding groove is adapted to the operating gear 35, and a flipping arc 43 is fixedly connected to the edge of the sliding groove; the flipping arc 43 is provided to guide the water flow on the surface of the water-guiding platform 41 and the recessed ring 42 to other positions, and to prevent the water flow from flowing to the position of the operating gear 35 and concentrating. In a further embodiment, a shielding ring 44 is fixedly connected to the surface of the contact frame 22. When the height of the shielding ring 44 is greater than the height of the connection end 21, a conical ring 45 is fixedly connected to the surface of the shielding ring 44. The conical ring 45 fits into the sensor housing 1. Through the shielding ring 44 and the conical ring 45, the connection end 21 can be protected to prevent liquid from flowing to the threaded location. Working principle of the invention: When installing the water pressure sensor, first screw the connecting end 21 into the water pipe, then pull the operating lever to disengage the limiting tooth 36 and the limiting tooth 37. Then rotate the operating lever, which drives the operating gear 35 to rotate, which in turn drives the synchronous gear 33 to rotate, thereby causing all the drive gears 34 to rotate. This causes the push rod 32 to slide towards the surface of the water pipe, making the contact frame 22 contact the water pipe. Then insert the clamp 26 into the fixing groove 25 and fix the clamp 26 to the water pipe. Insert the vibration sensor 23 into the contact frame 22, making the contact frame 22 contact the surface of the water pipe to complete the installation. When water hammer occurs inside the water pipe, the water flow impacts the inside of the water pipe and the water pressure sensor, causing the water pressure sensor to change its transmitted signal. When the water pipe is impacted, it will cause the water pipe vibration sensor 23 to change its output signal. The vibration sensor 23 signal is transmitted to the PLC controller through a filter. At the same time, the water pressure sensor signal is transmitted to the PLC controller. The PLC controller merges the two signals and transmits the merged water pressure value.

[0021] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A water pressure sensor for fire-fighting water pipes, comprising a sensor housing (1) of the water pressure sensor, wherein a connecting end (21) is fixedly connected to the surface of the sensor housing (1), and the connecting end (21) is threadedly connected to the inside of the water pipe, characterized in that, A stabilizing mechanism is provided between the sensor housing (1) and the water pipe, the stabilizing mechanism comprising: A contact frame (22) is slidably disposed on the surface of the sensor housing (1). A fixing component is provided between the contact frame (22) and the water pipe. A vibration sensor (23) is fixedly disposed inside the contact frame (22). The end of the vibration sensor (23) is in contact with the water pipe. A stabilizing unit is provided between the vibration sensor (23) and the water pressure sensor. The stabilization unit includes a filter, a PLC controller, and a transmission unit. The output terminal of the vibration sensor (23) is electrically connected to the input terminal of the filter. The output terminals of the filter and the water pressure sensor are electrically connected to the PLC controller. The PLC controller transmits digital signals through the transmission unit.

2. A cloud-based fire-fighting water pipe pressure sensor as described in claim 1, characterized in that, The PLC controller has a built-in GPS module, and the vibration sensor (23) is an IEPE type triaxial accelerometer or three uniaxial vibration sensors orthogonally mounted in three directions.

3. A cloud-based fire-fighting water pipe pressure sensor as described in claim 1, characterized in that, The fixing component includes a fixing groove (25) formed on the surface of the contact frame (22), and a clamp (26) is slidably connected inside the fixing groove (25), and the clamp (26) is fixedly connected to the water pipe.

4. A cloud-based fire-fighting water pipe pressure sensor as described in claim 1, characterized in that, The contact frame (22) is provided with abrasive blocks (24) on the side near the pipe.

5. A cloud-based fire-fighting water pipe pressure sensor as described in claim 1, characterized in that, An outer ring (31) is fixedly connected to the surface of the sensor housing (1). The outer ring (31) covers the contact frame (22). Several push rods (32) are rotatably connected to the surface of the contact frame (22). A synchronization component is provided between the push rods (32) and the outer ring (31).

6. A cloud-based fire-fighting water pipe pressure sensor as described in claim 5, characterized in that, The synchronization component includes a synchronization gear (33) rotatably disposed on the surface of an outer ring (31). A plurality of drive gears (34) and operating gears (35) are rotatably connected to the surface of the outer ring (31). The drive gears (34) and operating gears (35) are meshed with the synchronization gear (33). The push rod (32) is threadedly connected to the drive gears (34). A limiting component for limiting rotation is provided between the operating gears (35) and the outer ring (31).

7. A cloud-based fire-fighting water pipe pressure sensor as described in claim 6, characterized in that, The limiting component includes a limiting tooth (36) fixedly disposed on the surface of the operating gear (35), and a plurality of limiting teeth (37) fixedly connected to the surface of the outer ring (31). The plurality of limiting teeth (37) are arranged in a circular array with the center of the operating tooth as the center. The limiting tooth (36) and the limiting tooth (37) mesh. An operating rod is fixedly connected to the surface of the operating gear (35). A limiting rod (38) is rotatably connected inside the outer ring (31). A connecting spring (39) is fixedly connected between the operating rod and the limiting rod (38).

8. A cloud-based fire-fighting water pipe pressure sensor as described in claim 1, characterized in that, A water-drawing platform (41) is fixedly connected to the surface of the sensor housing (1), and an inner ring (42) is fixedly connected to the surface of the water-drawing platform (41). The projection of the edge of the inner ring (42) toward the water-drawing platform (41) is located on the surface of the water-drawing platform (41); the water-drawing platform (41) covers the synchronous gear (33).

9. A water pressure sensor for cloud-based fire-fighting water pipes as described in claim 8, characterized in that, The inner ring (42) has a sliding groove on its surface, which is adapted to the operating gear (35), and the edge of the sliding groove is fixedly connected with a flip arc (43).

10. A water pressure sensor for cloud-based fire-fighting water pipes as described in claim 1, characterized in that, A shielding ring (44) is fixedly connected to the surface of the contact frame (22). When the height of the shielding ring (44) is greater than the height of the connection end (21), a conical ring (45) is fixedly connected to the surface of the shielding ring (44). The conical ring (45) is in contact with the sensor housing (1).

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