Intelligent fire hydrant water pressure monitoring device

Abstract

The present invention belongs to the technical field of fire hydrants, and in particular relates to an intelligent fire hydrant water pressure monitoring device, comprising a main body of a fire hydrant, a pressure sensor being provided at the lower end of the valve plate, and a support member being provided at the lower end of the valve plate, which is connected to the pressure sensor and supports the pressure sensor. The lower end of the support member is rotatably connected to a plurality of baffles for blocking and closing the pressure sensor, and the connecting rope is driven downward along the guide groove by the connecting member. When the connecting rope moves, the guide wheel facilitates the movement of the connecting rope and also drives the connecting rope at the baffle to move, driving the baffle close to the pressure sensor and closing the pressure sensor to prevent the pressure sensor from being washed away by excessive impact force when the gate is just opened. At the same time, since the water quality of fire-fighting water is poor and it may contain impurities and sediment, the pressure sensor is closed, and the instantaneous flushing of sediment into the pressure sensor due to the gate just being opened can also be prevented, thereby avoiding damage to the pressure sensor.

Description

TECHNICAL FIELD

[0001] The application discloses a fire hydrant, in particular to a smart fire hydrant water pressure monitoring device. BACKGROUND

[0002] The formal name of the fire hydrant is called fire hydrant, and the fire hydrant is divided into indoor and outdoor two kinds, wherein the outdoor fire hydrant is a water supply facility arranged on the building outside the fire water supply pipe network, mainly for the fire truck to take water from the municipal water supply pipe network or outdoor fire water supply pipe network to implement fire extinguishing, and can be directly connected with the water hose and the water gun to extinguish fire, and is one of important fire-fighting facilities for extinguishing fire.

[0003] In the prior art, the fire hydrant is placed outdoors, and is not a commonly used article, but is used for sudden fire or sudden situation, so that the normal use is ensured by regular inspection and checking of the internal water pressure, but the outdoor fire hydrant is installed in large quantity and is widely distributed, so that the inspection is very cumbersome and inconvenient, therefore, the automatic water pressure detection device is invented in the prior art, the pressure sensor is arranged at the lower end of the valve plate and contacts with water to convert the physical quantity of water pressure into an electric signal, and the rated pressure value is set in advance, such as 0.3-0.5 MPa in the prior art, so as to be set in this interval, if it is lower than 0.3 or higher than 0.5, the signal is output to the display and an alarm is sent to the total end of the detection, so as to remind the maintenance personnel that the place is abnormal and needs to be checked, wherein because the fire water contains many impurities, the lower end of the pressure sensor is easily blocked, especially after the brake is just opened and the main valve plate is opened to discharge water, the impact force and the flow rate are large, so that the silt and impurities impact the pressure sensor, which easily causes the pressure sensor to be damaged, and even the detection is inaccurate and false alarm, therefore, the application proposes a new solution, which can filter impurities, reduce impact, avoid pressure sensor blockage and protect the pressure sensor, and reduce the error condition. SUMMARY

[0004] The application aims to solve the above problems and provides a smart fire hydrant water pressure monitoring device.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a kind of intelligent fire hydrant water pressure monitoring device, including the main body of fire hydrant, the main body includes the plug cover of topmost part, the main body is equipped with several interfaces, the pipeline of the bottom of the main body is equipped with valve, the valve rod is threadedly connected in the plug cover, the valve rod bottom is equipped with the valve plate for closing water outlet, the lower end of the valve plate is equipped with pressure sensor, the main body is equipped with digital display instrument connected with pressure sensor, the lower end of the main body located valve plate is equipped with support piece connected with pressure sensor and supporting pressure sensor, and support piece and pressure sensor are clamped the lower end of support piece is rotatably connected with several baffle plates for blocking and closing pressure sensor, the main body is equipped with drive assembly for driving baffle plate to open and close, several the filter piece of softness is arranged between the baffle plate, and the abutting block is arranged between adjacent baffle plate, and the abutting block is slidably connected with baffle plate, spring one is arranged between the abutting block and baffle plate, and adjacent abutting blocks are staggered.

[0006] The drive assembly includes a moving block slidably connected to the bottom of the main body, a connecting member is fixedly arranged on the moving block, the connecting member extends upward to the pressure sensor at the end away from the moving block, a fixed block is provided near the support piece of the pressure sensor, a plurality of guide wheels are provided in the fixed block, and the positions of the guide wheels correspond to the positions of the plurality of baffle plates, a guide groove is provided in the fixed block at the positions of the guide wheels, a connecting rope is provided on one side of each of the plurality of baffle plates near the pressure sensor, and the end of the connecting rope away from the baffle plate is threaded downward through the outer circle of the guide wheel and connected to the connecting member in the guide groove.

[0007] Preferably, a second spring is arranged between the bottom of the moving block and the main body, the moving block is arranged near the valve, and the moving block will first contact the water at the valve, and one side of the moving block near the valve is a beveled surface.

[0008] Preferably, a tension spring is arranged between the baffle plate and the support piece to pull the baffle plate to expand, the elastic force of the second spring is smaller than the impact force of the water flow at the moment when the valve is opened, and the elastic force of the second spring is greater than the elastic force of the tension spring.

[0009] Preferably, an anti-collision piece is rotatably connected to the outside of the support piece and fits the outer circle of the pressure sensor, a pull rope is provided at the uppermost end of the anti-collision piece, a rotating member is provided at the top of the pressure sensor to wind the pull rope and drive the anti-collision piece to fit the pressure sensor, and the rotating member is rotatably connected to the pressure sensor.

[0010] Preferably, a protrusion is provided on one side of the valve plate near the pressure sensor and embedded in the rotating member, an annular groove is provided in the rotating member, a pushing block is provided on the protrusion and embedded in the annular groove to push the rotating member to rotate, and the annular groove guides the movement of the pushing block.

[0011] As preferred, the anti-collision piece is rotatably connected with the supporting piece, and a spring is arranged at the rotatable connection position of the anti-collision piece and the supporting piece to push the anti-collision piece to reset.

[0012] As preferred, the anti-collision piece is rotatably connected with the supporting piece, and a spring is arranged at the rotatable connection position of the anti-collision piece and the supporting piece to push the anti-collision piece to reset.

[0013] Compared with the prior art, the application has the following beneficial effects:

[0014] Firstly, when the valve at the front end of the fire hydrant is closed and then opened, the water flow will directly flush the moving block near the valve at the beginning, and the flushing force is greater than the pressure of the spring II at the lower end of the moving block, so that the moving block is directly pressed downward, the connecting member connected with the moving block is also moved downward, and the connecting rope connected with the connecting member is also moved downward. The connecting rope moves along the guide groove, and the guide wheel facilitates the movement of the connecting rope and also moves the connecting rope at the baffle. The baffle is moved close to the pressure sensor, and the pressure sensor is closed, so that the water flow impact force is not too large when the valve is opened, and the pressure sensor is not flushed. In addition, the water quality for fire fighting is poor, and there are impurities and silt in the water. Therefore, the pressure sensor is closed, and the silt is not flushed into the pressure sensor when the valve is opened, so that the pressure sensor is not damaged.

[0015] Second, in the normal state test water pressure, because the valve has been opened after the water flow, and the water flow after the stable filled the entire pipeline and the valve plate under the end of the tube, the water flow impact force is less than the valve just opened the instantaneous water flow impact force, so will not move the block under the pressure sensor bottom of the position to open, by the influx of water filled the sensing part of the pressure sensor, at the same time the water pressure physical quantity into an electrical signal to measure the water pressure, and normal flow of sediment or impurities impact force is not just opened the force so big, will not excessive damage to the pressure sensor, and reset after the gap between the baffle, although the water flow into the filter can also block some impurities into the internal excessive attachment of impurities, while the adjacent baffle between the through the staggered abutment block can play a blocking larger sand into the damage to the pressure sensor, and the outdoor fire hydrant test water pressure, is through the valve opening water flow filled in the main valve plate bottom after detection, through the filter and abutment block to block the bottom of the pressure sensor, compared with the prior art in the just opened the water flow is not completely strike the valve plate bottom pipe, the pressure value is not enough to cause the pressure transfer delay, but the pipe is completely filled with water, also filled the entire pressure sensor, so the water flow is stable, its pressure is stable, at this time the normal water pressure can be measured, even if the delay but after the test will be recalibrated, so there will be no impact also can guarantee the integrity of the pressure sensor, will not be impacted by impurities and sand, and the existing can also be in advance to adapt to the pressure sensor in the equipped with filter and abutment block when the measured water pressure value in what interval, in advance to change the default value to avoid errors. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a kind of intelligent fire hydrant water pressure monitoring device structure schematic view;

[0017] Figure 2 It is a kind of intelligent fire hydrant water pressure monitoring device internal structure schematic view;

[0018] Figure 3 It is a kind of intelligent fire hydrant water pressure monitoring device internal partial structure schematic Figure 1 ;

[0019] Figure 4 It is Figure 3 Partial enlarged schematic view at A;

[0020] Figure 5 It is Figure 4 Partial enlarged schematic view at B;

[0021] Figure 6 It is Figure 3 Partial enlarged schematic view at C;

[0022] Figure 7It is a local structure diagram of an intelligent fire hydrant water pressure monitoring device Figure 2 ;

[0023] Figure 8 It is Figure 7 A local enlarged view at G.

[0024] Reference signs: 1, main body; 2, plug cover; 3, valve rod; 4, valve plate; 5, pressure sensor; 6, display instrument; 7, support; 8, baffle; 9, filter; 10, abutting block; 11, spring one; 12, moving block; 13, connecting piece; 14, fixed block; 15, guide wheel; 16, guide groove; 17, connecting rope; 18, spring two; 19, tension spring; 20, anti-collision piece; 21, pull rope; 22, rotating piece; 23, protruding block; 24, annular groove; 25, pushing block; 26, clock spring; 27, clamping groove; 28, blocking part; 29, driving wheel; 30, transmission wheel. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limitation on the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] An intelligent fire hydrant water pressure monitoring device, such as Figures 1-8As shown, the body 1 including hydrant, the body 1 includes the top plug 2, the body 1 is equipped with several interfaces, the bottom pipe of the body 1 is equipped with valve, the plug 2 is threadedly connected with valve stem 3, the bottom of valve stem 3 is equipped with valve plate 4 for closing water outlet, the lower end of valve plate 4 is equipped with pressure sensor 5, the body 1 is equipped with digital display instrument 6 connected with pressure sensor 5, after using the device normally, after setting pressure sensor 5 at the lower end of valve plate 4, then the whole installation is completed, by opening the valve on the pipe connected with the body 1, make water in the pipe and enter the body 1 at the bottom of valve plate 4, at the same time make the water filled with pressure sensor 5, directly contact with water to convert the physical quantity of water pressure into electrical signal, and transmit to display instrument 6, at the same time, the pressure of water meets the preset value, which will not trigger the alarm, when the pressure is less than the preset value, the alarm will be transmitted to the detection terminal through wireless transmission, reminding to check and repair, after installing the whole device in the prior art, the front valve of the pipe connected with the body 1 is opened instantly, the impact force of instantaneous water flow is large, the impurities and silt in the water flow are also large, when the impurities and silt flow into the bottom of the body 1, the impact force on the pressure sensor 5 is also large, the silt or impurities is easy to damage the pressure sensor 5, resulting in sensing error, and the impurities and silt enter and adhere to block, the body 1 at the lower end of valve plate 4 is equipped with support 7 connected with pressure sensor 5 and supporting pressure sensor 5, and the support 7 is connected with pressure sensor 5, the lower end of support 7 is rotatably connected with several baffles 8 for blocking and closing pressure sensor 5, the body 1 is equipped with driving assembly for driving the opening and closing of baffle 8, several baffles 8 are equipped with soft filter 9, adjacent baffles 8 are equipped with abutting block 10, and the abutting block 10 is slidably connected with the baffle 8, the abutting block 10 and the baffle 8 are equipped with spring one 11, and adjacent abutting blocks 10 are staggered, and after using the device, the baffle 8 is unfolded and away from the bottom of pressure sensor 5, and the connecting piece 13 is located at the center of several baffles 8, and the unfolded baffle 8 expands the filter 9, and the filter 9 moves along the connecting piece 13, which can be magnetic or slotted embedded sliding, thereby surrounding the space between the connecting piece 13 and the baffle 8, and the abutting blocks 10 between the baffles 8 are not mutually attached due to the unfolding of the baffles 8, and the abutting blocks 10 are pushed out by spring one 11 and staggered, and under normal conditions, the valve is opened to keep continuous water flow, after the whole pipe and the pipe in the body 1 at the bottom of valve plate 4 are full of water, the water flow is still continuous, which keeps the state of full water and the water flows slowly, under this condition, the water flow impact force is small, the impurities and silt are washed to the pressure sensor 5, the damage is also small, the expanded filter 9 and abutting block 10 can block the silt and impurities, and also reduce the damage to the pressure sensor 5 caused by silt and impurities, and also can ensure that the water flow is filled in the pressure sensor 5, although it is delayed, but after being filled with water, it can still keep the pressure measuring effect.

[0027] The driving assembly comprises a moving block 12 slidingly connected at the bottom of the main body 1, a connecting piece 13 fixedly arranged on the moving block 12, the connecting piece 13 extending upward to the pressure sensor 5 at the end away from the moving block 12, the pressure sensor 5 being provided with a fixed block 14 near the support 7, a plurality of guide wheels 15 being arranged in the fixed block 14 and corresponding to the positions of the plurality of baffles 8, the fixed block 14 being provided with a guide groove 16 at the position of the guide wheels 15, the plurality of baffles 8 being provided with a connecting rope 17 on the side near the pressure sensor 5, the connecting rope 17 being connected with the connecting piece 13 by being wound around the outer circle of the guide wheels 15 and then penetrating into the guide groove 16 downward. The moving block 12 is provided near the valve and will first contact the water near the valve, one side of the moving block 12 near the valve being a slope. Because the fire hydrant chamber is arranged outdoors, the total valve will be frequently temporarily closed or opened during maintenance, inspection or other uses. Therefore, the impact force of the water flow will be large when the valve is opened, and the fire water has a lot of impurities and some silt. Therefore, the water flow will be filled in the pipeline when it is opened, and the impact force of the water carrying silt or impurities will be large, which will cause damage or destruction to the pressure sensor 5. Long-term use will easily cause the pressure sensor 5 to be damaged and the pressure measurement to be deviated. The moving block 12 is arranged near the valve or the water inlet pipe. Therefore, when the water flow is opened, the device will directly impact on the moving block 12. At the same time, the moving block 12 near the water inlet pipe or the valve is a slope, and the water flow impact is convenient for the moving block 12 to move downward, compressing the spring 2 and synchronously moving the connecting piece 13 and the connecting rope 17 downward, so that the connecting rope 17 moves along the guide wheels 15 and pulls the connecting rope 17 on the other side of the guide wheels 15 upward, driving the connected baffles 8 to move upward and close to the pressure sensor 5. Therefore, all the baffles 8 are close to each other and abut to close the pressure sensor 5. The abutting baffles 8 will extrude the abutting block 10 inward to compress the spring 1, and the downward movement of the connecting piece 13 will also pull the filter 9 outward, avoiding the filter 9 from hindering the abutment of the baffles 8. Therefore, the water carrying impurities and silt is prevented from being washed to the detection position of the pressure sensor 5, the impact force is prevented from being too large to damage the pressure sensor 5, the pressure sensor 5 is protected, and the pressure sensor 5 is prevented from being damaged and causing errors due to frequent washing.

[0028] The pull spring 19 is arranged between the baffle 8 and the support 7 to pull the baffle 8 to be unfolded, the elastic force of the spring 2 18 is smaller than the impact force of the water flow when the valve is opened, the elastic force of the spring 2 18 is greater than the elastic force of the pull spring 19, and vice versa. After the valve is opened, the water flow fills the pipeline, the instantaneous scouring force is reduced, and after the water flow is stable, the spring 2 18 is compressed by the water pressure, the spring 2 18 is reset to push the connecting piece 13 to rise and cancel the pulling of the connecting rope 17, the pulling force of the connecting rope 17 disappears, the pull spring 19 drives the baffle 8 to be reset and unfolded, the abutting block 10 is re-penetrated, and the filtering piece 9 is pulled to be reset by the baffle 8, so that the gap between the baffle 8 and the connecting piece 13 is re-blocked, impurities are prevented from entering, and water enters the pressure sensor 5, so that the water pressure is monitored by the pressure sensor 5 after the water flow is stable after the gate is opened. Therefore, the impact force is large when the gate is just opened, the baffle 8 is closed to protect the pressure sensor 5, the impact force is weakened after the water flow fills the whole pipeline, the baffle 8 is reset and unfolded, the water enters the pressure sensor 5, the water pressure is stable, the water pressure is monitored, the filtering piece 9 and the abutting block 10 reduce the impurities and silt, and then the filtering piece 9 is loosened and tightened under the movement of the connecting piece 13 and the baffle 8, so that the attached impurities are shaken off, and the simple cleaning effect is achieved.

[0029] The support 7 is externally connected with an anti-collision sheet 20 which is attached to the outer ring of the pressure sensor 5. The upper end of the anti-collision sheet 20 is provided with a pull rope 21. The top of the pressure sensor 5 is provided with a rotating part 22 which winds the pull rope 21 and drives the anti-collision sheet 20 to attach to the pressure sensor 5. The rotating part 22 is rotationally connected with the pressure sensor 5. The side of the valve plate 4 close to the pressure sensor 5 is provided with a protrusion 23 which is embedded in the rotating part 22. The rotating part 22 is provided with an annular groove 24. The protrusion 23 is provided with a pushing block 25 which is embedded in the annular groove 24 and drives the rotating part 22 to rotate. The annular groove 24 guides the movement of the pushing block 25. The rotating connection between the anti-collision sheet 20 and the support 7 is provided with a spring 26 which drives the anti-collision sheet 20 to reset. The top of the pressure sensor 5 is provided with a clamping groove 27 which contains the pull rope 21 and limits the movement path of the pull rope 21. The end of the clamping groove 27 is provided with a blocking part 28 which prevents the pull rope 21 from escaping from the clamping groove 27. Finally, when the interface outside the main body 1 is opened and the cover is rotated to drive the valve rod 3 and the valve plate 4 is lifted, the water flow at the valve plate 4 is opened, and thus the water flow rate is relatively rapid. When there is no water at the valve plate 4, the flow rate is reduced, and thus the impurities and silt in the water are less likely to be washed to the pressure sensor 5. The lifting of the valve plate 4 drives the protrusion 23 to move upwards, and the protrusion 23 does not rotate. The upward movement drives the connected pushing block 25 to move upwards synchronously, which makes the pushing block 25 push the rotating part 22 to rotate along the inner wall of the annular groove 24. The rotating part 22 winds the pull rope 21, which is pulled by the winding of the pull rope 21 and the connection of the anti-collision sheet 20. The anti-collision sheet 20 is rotated from the horizontal state to the vertical state and is attached to the outer ring of the pressure sensor 5. The rotating anti-collision sheet 20 compresses the spring 26 when it rotates. The pull rope 21 is limited by the clamping groove 27 and the blocking part 28, which prevents the pull rope 21 from moving out of position and ensures that the anti-collision sheet 20 is out of position. The weight of the rotating part 22 is too large to rotate, which prevents the spring 26 from resetting due to the weight of the rotating part 22. This ensures that the rotating part 22 restricts the anti-collision sheet 20 after rotation. After the valve plate 4 is opened, the water flow along the valve plate 4 drives the anti-collision sheet 20 to attach to the pressure sensor 5. The anti-collision sheet 20 can be a rubber strip or a rubber bone or even an object with a shock absorber inside. This is a prior art which will not be discussed in detail to avoid the situation where the water flow through the pressure sensor 5 continuously washes the pressure sensor 5 with impurities or silt. This can protect the pressure sensor 5.

[0030] The driving wheel 29 is arranged at the rotating connection between the fender 20 and the support 7, and the transmission wheel 30 engaged with the driving wheel 29 is arranged at the rotating connection between the baffle 8 and the support 7. When the fender 20 rotates, the driving wheel 29 at the rear end of the fender 20 drives the transmission wheel 30 engaged therewith to rotate, and drives the baffle 8 to rotate and abut on the connecting piece 13, and seals the bottom of the pressure sensor 5, so that the mud and impurities cannot rush into the pressure sensor 5 to cause impact. The rotation of the baffle 8 makes the connecting rope 17 slack, but the connecting piece 13 cannot move downward. Similarly, after the baffle 8 is pulled to rotate by the connecting piece 13, the baffle 8 can also drive the fender 20 to rotate and abut on the outer circle of the pressure sensor 5 to protect the pressure sensor 5. In the above-mentioned process of just opening the gate and opening the valve plate 4 to store water, the water pressure does not need to be detected, so the sealing of the pressure sensor 5 does not affect the detection. In addition, when the water flow is fast and the impact force is large in the process of just opening the gate and opening the valve plate 4 to discharge water, the pressure sensor 5 can be protected, and the erosion and impact can be reduced. When the water fills the pipeline, even if the rest of the connected pipes discharge water, the flow rate here is smaller than that in the process of just opening the gate and storing water in the main body 1, so the impact force is also small, and the pressure sensor 5 is completely exposed to water. Compared with the prior art of directly placing the pressure sensor 5 in water and being eroded and impacted at will, the service life of the application is improved, and the pressure sensor 5 is better protected, avoiding the problem of inaccurate preset value after erosion, leading to detection deviation or even damage.

[0031] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present examples are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the specification as such. Any reference signs in the claims should not be construed as limiting the scope of the claims.

[0032] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. An intelligent fire hydrant water pressure monitoring device, comprising a fire hydrant body (1), the body (1) comprising a bolt cover (2) at the top, the body (1) being provided with a plurality of interfaces, a valve being provided on a pipe at the bottom of the body (1), the bolt cover (2) being internally threadedly connected to a valve stem (3), the bottom of the valve stem (3) being provided with a valve plate (4) for closing a water outlet, a pressure sensor (5) being provided at the lower end of the valve plate (4), the body (1) being provided with a digital display (6) connected to the pressure sensor (5), and characterized in that: The main body (1) is provided with a support member (7) at the lower end of the valve plate (4) and is connected to the pressure sensor (5) and supports the pressure sensor (5), and the support member (7) is clamped with the pressure sensor (5), and the lower end of the support member (7) is rotatably connected with a plurality of baffles (8) for blocking and sealing the pressure sensor (5), and a driving component for driving the baffles (8) to open and close is provided in the main body (1), a soft filter member (9) is provided between the plurality of baffles (8), abutment blocks (10) are provided between adjacent baffles (8), and the abutment blocks (10) are slidably connected to the baffles (8), a spring (11) is provided between the abutment blocks (10) and the baffles (8), and adjacent abutment blocks (10) are staggered with each other; The driving assembly includes a moving block (12) slidably connected to the bottom of the main body (1), a connecting member (13) is fixedly provided on the moving block (12), and an end of the connecting member (13) away from the moving block (12) extends upward to the pressure sensor (5), and the pressure sensor (5) is provided with a fixed block (14) near the support member (7), and a plurality of guide wheels (15) are provided in the fixed block (14), and the guide wheels (15) correspond to the positions of the plurality of baffles (8), and the fixed block (14) is provided with a guide groove (16) at the guide wheel (15), and a connecting rope (17) is provided on a side of the plurality of baffles (8) near the pressure sensor (5), and an end of the connecting rope (17) away from the baffle (8) is passed around the outer ring of the guide wheel (15) downward into the guide groove (16) and connected to the connecting member (13).

2. The intelligent fire hydrant water pressure monitoring device according to claim 1, characterized in that: A second spring (18) is provided between the bottom of the moving block (12) and the main body (1). The moving block (12) is provided close to the valve and will first contact the water at the valve. A side of the moving block (12) close to the valve is an inclined surface.

3. The intelligent fire hydrant water pressure monitoring device according to claim 2, characterized in that: A tension spring (19) is provided between the baffle (8) and the support member (7) to pull the baffle (8) to unfold. The elastic force of the second spring (18) is smaller than the impact force of the water flow at the moment the valve is opened, and the elastic force of the second spring (18) is larger than the elastic force of the tension spring (19).

4. The intelligent fire hydrant water pressure monitoring device according to claim 1, characterized in that: The support member (7) is externally rotatably connected to an anti-collision plate (20) that fits the outer ring of the pressure sensor (5); a pull rope (21) is provided at the uppermost end of the anti-collision plate (20); a reel pull rope (21) is provided at the top of the pressure sensor (5) and drives the anti-collision plate (20) to fit the rotating member (22) of the pressure sensor (5); and the rotating member (22) is rotatably connected to the pressure sensor (5).

5. The intelligent fire hydrant water pressure monitoring device according to claim 4, characterized in that: A protrusion (23) embedded in the rotating member (22) is provided on one side of the valve plate (4) close to the pressure sensor (5), an annular groove (24) is provided in the rotating member (22), a pushing block (25) embedded in the annular groove (24) and pushing the rotating member (22) to rotate is provided on the protrusion (23), and the annular groove (24) guides the pushing block (25) to move.

6. The intelligent fire hydrant water pressure monitoring device according to claim 5, characterized in that: A spring (26) for pushing the anti-collision plate (20) to reset is provided at the rotational connection between the anti-collision plate (20) and the support member (7), a slot (27) for accommodating the pull rope (21) to pass through and limiting the movement path of the pull rope (21) is provided at the top of the pressure sensor (5), and a blocking portion (28) for blocking the pull rope (21) from escaping the slot (27) is provided at the end of the slot (27).

7. The intelligent fire hydrant water pressure monitoring device according to claim 6, characterized in that: A driving wheel (29) is provided at the rotational connection between the anti-collision plate (20) and the support member (7), and a transmission wheel (30) meshing with the driving wheel (29) is provided at the rotational connection between the baffle (8) and the support member (7).

Images