CN112494874B - Automatic change low water pressure monitoring alarm fire hydrant - Google Patents
Automatic change low water pressure monitoring alarm fire hydrant Download PDFInfo
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- CN112494874B CN112494874B CN202110078015.XA CN202110078015A CN112494874B CN 112494874 B CN112494874 B CN 112494874B CN 202110078015 A CN202110078015 A CN 202110078015A CN 112494874 B CN112494874 B CN 112494874B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/20—Hydrants, e.g. wall-hoses, wall units, plug-in cabinets
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/12—Alarms or signals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Water Supply & Treatment (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses an automatic low water pressure monitoring alarm fire hydrant, which comprises a hydrant body and a water inlet pipe arranged at the lower side of the hydrant body, wherein a blocking mechanism is arranged at the lower side of the water inlet pipe, a water inlet cavity which is communicated with the left and the right is arranged in the water inlet pipe, an overflow protection valve and a low-pressure alarm device are combined on the fire hydrant, so that the fire hydrant can be stabilized through an overflow valve when the water pressure is kept to fluctuate in a normal range, the protection device can be directly decompressed when the pressure is overhigh, the alarm device can be directly started when the pressure is lower than the lower limit of fluctuation to inform maintenance personnel to timely repair and reduce the failure rate of the fire hydrant during fire, meanwhile, the pressure is kept in a lower range at ordinary times, the service life of the fire hydrant is prolonged, the instantaneous water pressure is improved by a gear pump synchronous pressurization mode when the fire hydrant is required, and meanwhile, the invention realizes the process automation, the processing efficiency is greatly improved, the labor force is saved, and the fire hydrant management cost is reduced.
Description
Technical Field
The invention relates to an automatic low water pressure monitoring alarm fire hydrant, and mainly relates to the technical field of fire hydrant water pressure monitoring.
Background
A fire hydrant, called fire hydrant formally, is a fixed fire-fighting equipment, and mainly has the functions of controlling combustible substances, isolating combustion-supporting substances and eliminating ignition sources. Dividing an indoor fire hydrant and an outdoor fire hydrant;
the fire hydrant is common fire-fighting equipment in daily life, is widely distributed in various buildings, districts and other places to be used for fire extinguishing operation of a fire truck when fire is needed to be extinguished emergently, but because the fire hydrant is placed in an outdoor environment for a long time and the change of the outdoor environment is too complex, the fire hydrant is easy to cause water pressure drop, and the situation that no water is available is caused when the fire hydrant is used;
traditional fire hydrant detects and maintains that all manual works are carried out, and is very complicated, and the condition that can not appear using when needs use, and water pressure monitoring can not go on in real time, can lead to conflagration rescue to delay the opportunity, produces serious consequence, and long-time water under high pressure is full of the fire hydrant and also can influence the life of fire hydrant and be unfavorable for long-term use. In the prior art, manual operation is needed for the treatment, time and labor are wasted, the efficiency is low, automation is difficult to realize, and the invention improves the defects.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic low water pressure monitoring alarm fire hydrant, and overcomes the problems.
The invention is realized by the following technical scheme.
The invention discloses an automatic low water pressure monitoring alarm fire hydrant, which comprises a hydrant body and a water inlet pipe arranged on the lower side of the hydrant body, wherein a blocking mechanism is arranged on the lower side of the water inlet pipe, a water inlet cavity which is communicated from left to right is arranged in the water inlet pipe, a one-way mechanism and a supercharging mechanism are arranged in the water inlet cavity, a water outlet mechanism is arranged on the upper side of the hydrant body, an alarm mechanism is arranged on the rear side of the hydrant body, a flow channel which is communicated up and down is arranged in the hydrant body, and an overflow monitoring mechanism and a position detection mechanism are arranged in the hydrant body;
the overflow monitoring mechanism comprises an overflow valve positioned in the bolt body, an overflow valve cavity is arranged in the overflow valve, an overflow valve core is arranged in the overflow valve cavity in a sliding manner, a water inlet flow pipe which extends into the flow channel and is communicated with the flow channel is arranged on the left wall of the overflow valve cavity, a flow pipe which is communicated with the overflow valve cavity up and down is arranged on the overflow valve core, the upper side of the overflow valve cavity is connected with a pressure cavity through a flow dividing pipe, an adjusting cavity is arranged on the right side of the pressure cavity in a sliding manner, an adjusting block is arranged in the adjusting cavity in a sliding manner, the left side of the adjusting block is elastically connected with a pressure head through a spring, the pressure head is positioned at the joint of the pressure cavity and the adjusting cavity and is used for controlling the water pressure entering the adjusting cavity, an adjusting disc is arranged on the right side of the adjusting block and extends to the right side of the bolt body, and can control the pressure of the adjusting block on the pressure head when the adjusting disc rotates, an elastic cavity is connected to the lower side of the adjusting cavity, the upper end of the overflow valve core is connected in the elastic cavity in a sliding mode, a thin tube is arranged on the overflow valve core and communicated with the elastic cavity, an outflow tube is connected to the lower side of the thin tube, the right end of the outflow tube extends to the right side of the bolt body and is connected with an overflow box, a signal line extending to the right side of the bolt body is arranged on the right wall of the overflow valve cavity, when the water pressure in the runner normally fluctuates, water in the overflow valve cavity pushes away the pressure head and enters the overflow box through the thin tube, when the water pressure is too high, water in the overflow valve cavity directly pushes away the overflow valve cavity and enters the outflow tube to complete pressure relief, and when the water pressure in the runner is too low, the overflow valve core descends to trigger the signal line to send a signal to the outside;
the supercharging mechanism comprises a fixed shaft positioned in the water inlet cavity, the fixed shaft is positioned in the water inlet cavity and is rotatably provided with a driven gear, a lifting shaft capable of sliding up and down is arranged on the inner wall of the water inlet cavity, a driving gear is arranged on the lifting shaft, the rear side of the lifting shaft is provided with a lifting rod extending to the upper side of the water inlet pipe, the lifting rod is in non-power connection with the lifting shaft, the lifting shaft is provided with a sealing plate which is connected with the rear wall of the water inlet cavity in a sliding way in a penetrating way, the rear end of the lifting shaft extends to the rear side of the water inlet pipe and is connected with a motor, a motor switch is arranged at the lower side of the motor, a supporting plate is arranged at the rear side of the water inlet pipe and fixed at the lower side of the motor switch, when the motor drives the motor switch to descend, the motor can be triggered, the driving gear is meshed with the driven gear at the moment, and water in the water inlet cavity can be discharged into the flow channel after being pressurized.
Further, position detection mechanism is including being located detection chamber in the bolt, detect dead lever on the chamber roof, the dead lever bottom mounting is equipped with the rotary disk, the rotary disk is rotatory to be equipped with rotatory piece, the rotatory rotary rod that is equipped with of rotatory piece downside, the rotary rod lower extreme is equipped with the trigger ball, the trigger ball is fixed in all around be equipped with the receiving ring on the detection intracavity wall, the receiving ring is connected with outside output signal's connecting wire, works as when accident such as bolt whole by collision, striking appear inclining, for can in time obtaining the repair, the trigger ball can pass through the receiving ring reaches the outside output damage signal of connecting wire.
Furthermore, the water outlet mechanism comprises a water outlet pipe fixedly arranged at the upper end of the bolt body, a water outlet cavity is arranged in the water outlet pipe in a left-right penetrating manner, threaded ports are symmetrically arranged at two ends of the water outlet cavity, threaded covers are connected onto the threaded ports in a threaded manner, a top block is arranged on the upper side of the water outlet pipe, a rotatable spindle is arranged in the top block, a shaft key structure is arranged at the upper end of the spindle, the upper end of the spindle can be connected with a rotatable handle, the lower end of the rotatable handle extends to the runner and is in threaded connection with a spindle block, when the rotatable handle is placed on the spindle to start rotating, the spindle block can be moved upwards by the spindle, so that water in the runner can enter the water outlet cavity, a connecting rod is arranged at the lower side of the spindle block, a chute is arranged on the right wall of the runner, a lifting plate is arranged in the chute in a sliding manner, and the water inlet pipe is connected to the right wall of the chute, lifter lower extreme swivelling joint has the lever, the fixed lever pillar that is equipped with of bolt body downside, lever pillar lower extreme swivelling joint the middle section of lever, lever right-hand member swivelling joint the lifter works as when the fire hydrant is upwards opened to the main shaft piece, the lifter rebound seals the water inlet flow tube, and the lifter moves down makes booster mechanism begins to operate, and seals water inlet flow tube can protect overflow monitoring mechanism prevents its damage, opens the screw lid just can be with the fire control area take up go out the water cavity, and then begin to spray and put out a fire.
Furthermore, the one-way mechanism is including being located the one-way valve pocket of inlet tube left side section, one-way valve pocket both ends are connected the intake antrum, it is equipped with one-way valve core to slide in the one-way valve pocket, one-way valve core left side is through one-way spring elastic connection the left wall of one-way valve pocket, evenly be equipped with the check valve hole on the one-way valve core, water in the intake antrum gets into from the right side, accesss to next fire hydrant by the left side, and this structure can play the condition that prevents the high pressure water backward flow and damage equipment.
Further, block the mechanism including being located inlet tube right side section downside blocks the case, block the incasement and be equipped with and block the chamber, block the intracavity and slide and be equipped with and block smooth core, block smooth core downside through blocking spring elastic connection block the diapire in chamber, it is equipped with and extends to block smooth core upside block the board in the inlet chamber, it is equipped with the electro-magnet to block the chamber upper wall, works as when the electro-magnet starts, thereby it can be adsorbed the upside and block to block smooth core the entering rivers of inlet chamber.
Furthermore, the alarm mechanism comprises an alarm positioned at the rear side of the bolt body, two sides of the alarm are respectively connected with the signal line and the connecting line, a control line connected with the electromagnet is arranged on the lower side of the alarm, when the signal line water shortage signal enters the alarm, the alarm can be directly started to alarm, when the connecting line signal enters the alarm but does not have the signal line signal, the device is not processed, when the connecting line and the signal line simultaneously enter the alarm, the whole device is likely to be broken by impact, and the alarm triggers the electromagnet to break off the water supply in the water inlet cavity through the control line while alarming, so that excessive water resource waste is prevented.
The invention has the beneficial effects that: according to the invention, the overflow protection valve and the low-pressure alarm device are combined on the fire hydrant, so that the fire hydrant can be stabilized through the overflow valve when the water pressure is kept to fluctuate within a normal range, the protection device can be directly decompressed when the pressure is too high, and the alarm device can be directly started when the pressure is lower than the lower fluctuation limit to inform maintenance personnel, so that the failure rate of the fire hydrant during fire disaster can be timely repaired and reduced, meanwhile, the pressure is kept within a lower range when the fire hydrant is in normal time, the service life of the fire hydrant is prolonged, the instantaneous water pressure is increased in a gear pump synchronous pressurization mode when the fire hydrant is required to be used, meanwhile, the automation of the treatment process is realized, the treatment efficiency is greatly improved, the labor force is saved, and the management cost of the fire hydrant is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a rear view of the structure of fig. 1.
Fig. 3 is a schematic view of the structure a-a in fig. 1.
Fig. 4 is an enlarged schematic view of B in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The automatic low water pressure monitoring and alarming fire hydrant shown in fig. 1-4 comprises a hydrant body 10 and a water inlet pipe 28 arranged on the lower side of the hydrant body 10, wherein a blocking mechanism 100 is arranged on the lower side of the water inlet pipe 28, a water inlet cavity 29 which is communicated from left to right is arranged in the water inlet pipe 28, a one-way mechanism 101 and a pressurizing mechanism 102 are arranged in the water inlet cavity 29, a water outlet mechanism 103 is arranged on the upper side of the hydrant body 10, an alarming mechanism 104 is arranged on the rear side of the hydrant body 10, a flow channel 11 which is communicated from top to bottom is arranged in the hydrant body 10, and an overflow monitoring mechanism 105 and a position detecting mechanism 106 are arranged in the hydrant body 10;
the overflow monitoring mechanism 105 includes an overflow valve 58 located in the bolt 10, an overflow valve cavity 63 is arranged in the overflow valve 58, an overflow valve core 61 is slidably arranged in the overflow valve cavity 63, a water inlet flow pipe 59 extending into the flow passage 11 and communicating with the flow passage is arranged on the left wall of the overflow valve cavity 63, a flow pipe 62 communicating with the overflow valve cavity 63 up and down is arranged on the overflow valve core 61, the upper side of the overflow valve cavity 63 is connected with a pressure cavity 65 through a flow dividing pipe 64, the right side of the pressure cavity 65 is provided with an adjusting cavity 67, an adjusting block 68 is slidably arranged in the adjusting cavity 67, the left side of the adjusting block 68 is elastically connected with a pressure head 66 through a spring, the pressure head 66 is located at the joint of the pressure cavity 65 and the adjusting cavity 67 and used for controlling the water pressure entering the adjusting cavity 67, and an adjusting disc 69 is arranged on the right side of the adjusting block 68 extending to the right side of the bolt 10, when the adjusting disk 69 rotates, the pressure of the adjusting block 68 on the pressure head 66 can be controlled, the elastic cavity 70 is connected to the lower side of the adjusting cavity 67, the upper end of the overflow valve core 61 is slidably connected in the elastic cavity 70, a thin tube 71 is arranged in the overflow valve core 61 and the elastic cavity 70 in communication, an outflow tube 72 is connected to the lower side of the thin tube 71, the right end of the outflow tube 72 extends to the right side of the bolt 10 and is connected with an overflow tank 57, a signal line 47 extending to the right side of the bolt 10 is arranged on the right wall of the overflow valve cavity 63, when the water pressure in the flow channel 11 normally fluctuates, the water in the overflow valve cavity 63 pushes away the pressure head 66 to pass through the thin tube 71 and enter the overflow tank 57, and when the water pressure is too high, the water in the overflow valve cavity 63 directly pushes away the overflow valve cavity 63 to enter the outflow tube 72 to complete pressure relief, when the water pressure in the flow passage 11 is too low, the overflow valve core 61 descends to trigger the signal line 47 to send a signal to the outside;
the supercharging mechanism 102 comprises a fixed shaft 51 positioned in the water inlet cavity 29, the fixed shaft 51 is positioned in the water inlet cavity 29 and is rotatably provided with a driven gear 50, the inner wall of the water inlet cavity 29 is provided with a lifting shaft 48 capable of sliding up and down, the lifting shaft 48 is provided with a driving gear 49, the rear side of the lifting shaft 48 is provided with a lifting rod 39 extending to the upper side of the water inlet pipe 28, the lifting rod 39 is in non-power connection with the lifting shaft 48, the lifting shaft 48 penetrates through a sealing plate 52 which is provided with a sliding connection with the rear wall of the water inlet cavity 29, the rear end of the lifting shaft 48 extends to the rear side of the water inlet pipe 28 and is connected with a motor 54, the lower side of the motor 54 is provided with a motor switch 55, the rear side of the water inlet pipe 28 is fixed on the lower side of the motor switch 55 and is provided with a supporting plate 56, and when the motor 54 drives the motor switch 55 to descend, the motor 54 can be triggered, and the driving gear 49 is engaged with the driven gear 50 at this time, and can discharge the water in the water inlet chamber 29 into the flow passage 11 after pressurizing the water.
Beneficially, the position detecting mechanism 106 includes a detecting cavity 20 located in the bolt 10, a fixing rod 21 is located on the top wall of the detecting cavity 20, a rotating disk 22 is fixedly arranged at the bottom end of the fixing rod 21, a rotating block 23 is rotatably arranged on the rotating disk 22, a rotating rod 24 is rotatably arranged at the lower side of the rotating block 23, a trigger ball 25 is arranged at the lower end of the rotating rod 24, the trigger ball 25 is fixed around a receiving ring 26 is arranged on the inner wall of the detecting cavity 20, the receiving ring 26 is connected with a connecting wire 27 for outputting a signal outwards, and when the bolt 10 is inclined by accident such as collision and impact, the trigger ball 25 outputs a damage signal outwards through the receiving ring 26 and the connecting wire 27 for timely repairing.
Advantageously, the water outlet mechanism 103 includes a water outlet pipe 12 fixedly arranged at the upper end of the bolt 10, a water outlet cavity 13 is arranged in the water outlet pipe 12 in a left-right penetrating manner, threaded ports 14 are symmetrically arranged at both ends of the water outlet cavity 13, a threaded cap 15 is connected to the threaded ports 14 in a threaded manner, a top block 16 is arranged at the upper side of the water outlet pipe 12, a rotatable spindle 18 is arranged in the top block 16, a spindle key structure is arranged at the upper end of the spindle 18, a rotatable handle 17 can be connected to the upper end of the spindle 18, a spindle block 19 is connected to the lower end of the rotatable handle 17 in a threaded manner extending to the flow channel 11, when the rotatable handle 17 is placed on the spindle 18 to start rotating, the spindle 18 can move the spindle block 19 upwards, so that water in the flow channel 11 can enter the water outlet cavity 13, a connecting rod 34 is arranged at the lower side of the spindle block 19, and a sliding groove 35 is arranged on the right wall of the flow channel 11, slide in the spout 35 and be equipped with lifter plate 36, connect on the right wall of spout 35 water inlet pipe 59, lifter plate 36 lower extreme swivelling joint has lever 37, the fixed lever pillar 38 that is equipped with of bolt 10 downside, lever pillar 38 lower extreme swivelling joint the middle section of lever 37, lever 37 right-hand member swivelling joint lifter 39, work as when the main shaft piece 19 upwards opens the fire hydrant, lifter plate 36 rebound seals water inlet pipe 59, and lifter 39 moves down and makes booster mechanism 102 begins the operation, and seals water inlet pipe 59 can protect overflow monitoring mechanism 105 prevents its damage, opens screw cap 15 just can take the fire hose up go out water cavity 13, and then begins to spray and put out a fire.
Beneficially, the check mechanism 101 includes a check valve cavity 30 located at the left section of the water inlet pipe 28, two ends of the check valve cavity 30 are connected to the water inlet cavity 29, a check valve core 31 is slidably disposed in the check valve cavity 30, the left side of the check valve core 31 is elastically connected to the left wall of the check valve cavity 30 through a check spring 32, check valve holes 33 are uniformly disposed on the check valve core 31, water in the water inlet cavity 29 enters from the right side and enters the next fire hydrant from the left side, and the structure can prevent the situation that high-pressure water flows back to damage equipment.
Advantageously, the blocking mechanism 100 comprises a blocking box 40 located at the lower side of the right section of the water inlet pipe 28, a blocking cavity 41 is arranged in the blocking box 40, a blocking slide core 42 is slidably arranged in the blocking cavity 41, the lower side of the blocking slide core 42 is elastically connected with the bottom wall of the blocking cavity 41 through a blocking spring 43, the upper side of the blocking slide core 42 is provided with a blocking plate 44 extending into the water inlet cavity 29, the upper wall of the blocking cavity 41 is provided with an electromagnet 45, and when the electromagnet 45 is activated, the blocking slide core 42 can be attracted to the upper side so as to block the inlet water flow of the water inlet cavity 29.
Advantageously, the alarm mechanism 104 includes an alarm 73 located at the rear side of the bolt 10, the two sides of the alarm 73 are respectively connected to the signal line 47 and the connection line 27, a control line 46 connected to the electromagnet 45 is provided at the lower side of the alarm 73, when the signal line 47 is lack of water and enters the alarm 73, the alarm 73 directly starts an alarm, when the connection line 27 is signaled to enter the alarm 73 but the signal line 47 is not signaled, the device is not processed, when the connection line 27 and the signal line 47 simultaneously enter the alarm 73, the device as a whole may be broken by impact, and the alarm 73 triggers the electromagnet 45 to cut off the water supply in the water inlet cavity 29 through the control line 46 while alarming to prevent excessive water resource waste.
Sequence of mechanical actions of the whole device:
1. when the water pressure is normal, the whole device is in an initial state;
2. when the water pressure is abnormally increased, the water in the water inlet cavity 29 overflows into the overflow tank 57 through the flow channel 11, the water inlet flow pipe 59, the overflow valve cavity 63, the flow pipe 62, the flow dividing pipe 64, the pressure cavity 65, the pressure head 66, the elastic cavity 70, the thin pipe 71 and the outflow pipe 72 to complete pressure stabilization, and after the water pressure is further increased, the water in the overflow valve cavity 63 pushes away the overflow valve core 61 and directly enters the overflow tank 57 through the outflow pipe 72 to realize pressure relief, so that the purpose of high-pressure protection is achieved;
3. when the water pressure is abnormally reduced, the water pressure in the overflow valve cavity 63 is reduced, the overflow valve core 61 slides downwards to trigger the alarm 73 through the signal line 47, and an alarm is given to the outside to inform maintenance personnel of the repair;
4. at the moment, when fire occurs around and the fire hydrant needs to be used, a fireman opens the threaded cover 15 to connect the fire hose, then rotates the rotary handle 17 to enable the water outlet cavity 13 to be communicated with the water inlet cavity 29 through the main shaft 18 and the main shaft block 19, and the fire hose starts to discharge water and spray to extinguish fire;
5. meanwhile, the main shaft block 19 enables the lifting shaft 48 and the driving gear 49 to move downwards through the connecting rod 34, the lifting plate 36, the lever 37, the lever strut 38 and the lifting rod 39 to be meshed and connected with the driven gear 50, and the motor switch 55 touches the supporting plate 56 at the moment to trigger the motor 54 to start pressurization;
6. meanwhile, the lifting plate 36 can seal the water inlet flow pipe 59 upwards to achieve the purpose of protecting the overflow valve 58 during pressurization;
7. when the whole device is impacted, the trigger ball 25 loses the stable state and triggers the alarm 73 through the receiving ring 26 and the connecting line 27, simultaneously the water pressure reduction signal line 47 synchronously inputs signals after the bolt body 10 is broken, at the moment, the alarm 73 blocks the water flow of the water inlet cavity 29 through the control line 46, the electromagnet 45, the blocking sliding core 42 and the blocking plate 44, and simultaneously informs maintenance personnel to come to the site, so that the waste of water resources during breakage is reduced.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (1)
1. An automatic change low water pressure monitoring alarm fire hydrant which characterized in that: the water inlet pipe is characterized by comprising a bolt body and a water inlet pipe arranged on the lower side of the bolt body, wherein a blocking mechanism is arranged on the lower side of the water inlet pipe, a water inlet cavity which is communicated from left to right is arranged in the water inlet pipe, a one-way mechanism and a supercharging mechanism are arranged in the water inlet cavity, a water outlet mechanism is arranged on the upper side of the bolt body, an alarm mechanism is arranged on the rear side of the bolt body, a flow channel which is communicated from top to bottom is arranged in the bolt body, and an overflow monitoring mechanism and a position detection mechanism are arranged in the bolt body; the overflow monitoring mechanism comprises an overflow valve positioned in the bolt body, an overflow valve cavity is arranged in the overflow valve, an overflow valve core is arranged in the overflow valve cavity in a sliding manner, a water inlet flow pipe which extends into the flow channel and is communicated with the flow channel is arranged on the left wall of the overflow valve cavity, a flow pipe which is communicated with the overflow valve cavity up and down is arranged on the overflow valve core, the upper side of the overflow valve cavity is connected with a pressure cavity through a flow dividing pipe, an adjusting cavity is arranged on the right side of the pressure cavity in a sliding manner, an adjusting block is arranged in the adjusting cavity in a sliding manner, the left side of the adjusting block is elastically connected with a pressure head through a spring, the pressure head is positioned at the joint of the pressure cavity and the adjusting cavity and is used for controlling the water pressure entering the adjusting cavity, an adjusting disc is arranged on the right side of the adjusting block and extends to the right side of the bolt body, and can control the pressure of the adjusting block on the pressure head when the adjusting disc rotates, an elastic cavity is connected to the lower side of the adjusting cavity, the upper end of the overflow valve core is connected in the elastic cavity in a sliding mode, a thin tube is arranged on the overflow valve core and communicated with the elastic cavity, an outflow tube is connected to the lower side of the thin tube, the right end of the outflow tube extends to the right side of the bolt body and is connected with an overflow box, a signal line extending to the right side of the bolt body is arranged on the right wall of the overflow valve cavity, when the water pressure in the runner normally fluctuates, water in the overflow valve cavity pushes away the pressure head and enters the overflow box through the thin tube, when the water pressure is too high, water in the overflow valve cavity directly pushes away the overflow valve cavity and enters the outflow tube to complete pressure relief, and when the water pressure in the runner is too low, the overflow valve core descends to trigger the signal line to send a signal to the outside; the supercharging mechanism comprises a fixed shaft positioned in the water inlet cavity, the fixed shaft is positioned in the water inlet cavity and is rotatably provided with a driven gear, a lifting shaft capable of sliding up and down is arranged on the inner wall of the water inlet cavity, a driving gear is arranged on the lifting shaft, the rear side of the lifting shaft is provided with a lifting rod extending to the upper side of the water inlet pipe, the lifting rod is in non-power connection with the lifting shaft, the lifting shaft is provided with a sealing plate which is connected with the rear wall of the water inlet cavity in a sliding way in a penetrating way, the rear end of the lifting shaft extends to the rear side of the water inlet pipe and is connected with a motor, a motor switch is arranged at the lower side of the motor, a supporting plate is arranged at the rear side of the water inlet pipe and fixed at the lower side of the motor switch, when the motor drives the motor switch to descend, the motor can be triggered, and the driving gear is meshed with the driven gear at the moment and can discharge water in the water inlet cavity into the flow channel after being pressurized; the position detection mechanism comprises a detection cavity in the bolt body, a fixed rod is arranged on the top wall of the detection cavity, a rotating disc is fixedly arranged at the bottom end of the fixed rod, a rotating block is arranged on the rotating disc in a rotating mode, a rotating rod is arranged on the lower side of the rotating block in a rotating mode, a trigger ball is arranged at the lower end of the rotating rod, a receiving ring is arranged on the inner wall of the detection cavity and fixed around the trigger ball, the receiving ring is connected with a connecting wire for outputting signals outwards, and when the whole bolt body is inclined due to an accident, the trigger ball can output damage signals outwards through the receiving ring and the connecting wire in order to be repaired in time; the water outlet mechanism comprises a water outlet pipe fixedly arranged at the upper end of the bolt body, a water outlet cavity is arranged in the water outlet pipe in a left-right penetrating manner, threaded ports are symmetrically arranged at two ends of the water outlet cavity, threaded covers are connected to the threaded ports in a threaded manner, a top block is arranged on the upper side of the water outlet pipe, a rotatable spindle is arranged in the top block, a spindle key structure is arranged at the upper end of the spindle, the upper end of the spindle can be connected with a rotatable handle, the lower end of the rotatable handle extends to the flow channel and is in threaded connection with a spindle block, when the rotatable handle is placed on the spindle to start rotating, the spindle block can be moved upwards by the spindle, so that water in the flow channel can enter the water outlet cavity, a connecting rod is arranged at the lower side of the spindle block, a sliding groove is arranged on the right wall of the flow channel, a lifting plate is arranged in the sliding groove in a sliding manner, and the water inlet flow pipe is connected to the right wall of the sliding groove, the lower end of the lifting plate is rotatably connected with a lever, a lever pillar is fixedly arranged on the lower side of the bolt body, the lower end of the lever pillar is rotatably connected with the middle section of the lever, the right end of the lever is rotatably connected with the lifting rod, when the fire hydrant is opened upwards by the spindle block, the lifting plate moves upwards to close the water inlet flow pipe, the lifting rod moves downwards to enable the supercharging mechanism to start running, the water inlet flow pipe is closed to protect the overflow monitoring mechanism from being damaged, the fire belt can be connected to the water outlet cavity by opening the threaded cover, and then jet fire extinguishing is started; the one-way mechanism comprises a one-way valve cavity positioned at the left section of the water inlet pipe, two ends of the one-way valve cavity are connected with the water inlet cavity, a one-way valve core is arranged in the one-way valve cavity in a sliding mode, the left side of the one-way valve core is elastically connected with the left wall of the one-way valve cavity through a one-way spring, one-way valve holes are uniformly formed in the one-way valve core, water in the water inlet cavity enters from the right side and enters the next fire hydrant from the left side, and the structure can prevent high-pressure water from flowing back to damage equipment; the blocking mechanism comprises a blocking box positioned on the lower side of the right section of the water inlet pipe, a blocking cavity is arranged in the blocking box, a blocking sliding core is arranged in the blocking cavity in a sliding mode, the lower side of the blocking sliding core is elastically connected with the bottom wall of the blocking cavity through a blocking spring, a blocking plate extending into the water inlet cavity is arranged on the upper side of the blocking sliding core, an electromagnet is arranged on the upper wall of the blocking cavity, and when the electromagnet is started, the blocking sliding core can be adsorbed to the upper side so as to block the water flow entering the water inlet cavity; the alarm mechanism comprises an alarm positioned on the rear side of the bolt body, the two sides of the alarm are respectively connected with the signal line and the connecting line, a control line connected with the electromagnet is arranged on the lower side of the alarm, when the signal line is lack of water and enters the alarm, the alarm can be directly started to alarm, when the connecting line signal enters the alarm but does not have the signal line signal, the device does not process, when the connecting line and the signal line simultaneously enter the alarm, the whole device is likely to be broken by collision, and the alarm triggers the electromagnet to break off the water supply in the water inlet cavity through the control line while alarming so as to prevent excessive water resource waste.
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| CN202110078015.XA CN112494874B (en) | 2021-01-20 | 2021-01-20 | Automatic change low water pressure monitoring alarm fire hydrant |
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| CN202110078015.XA CN112494874B (en) | 2021-01-20 | 2021-01-20 | Automatic change low water pressure monitoring alarm fire hydrant |
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| CN112494874B true CN112494874B (en) | 2021-12-10 |
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| CN2526355Y (en) * | 2002-01-23 | 2002-12-18 | 正德防火工业股份有限公司 | Automatic pressure stabilizer for fire hydrant |
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| CN108999245A (en) * | 2018-07-04 | 2018-12-14 | 合肥欧语自动化有限公司 | A kind of intelligent fire bolt with hydraulic pressure detection |
| CN110131434A (en) * | 2019-05-15 | 2019-08-16 | 王拓 | A kind of valve body and its application method for fire hydrant |
| CN110159766A (en) * | 2019-04-30 | 2019-08-23 | 福建省贵峰消防科技有限公司 | A kind of Intelligent pressure reducing pressure stabilizing bolt |
| CN110629833A (en) * | 2019-09-29 | 2019-12-31 | 杭州冰玉科技有限公司 | Energy-concerving and environment-protective hidden regulation and control fire hydrant |
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2021
- 2021-01-20 CN CN202110078015.XA patent/CN112494874B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526355Y (en) * | 2002-01-23 | 2002-12-18 | 正德防火工业股份有限公司 | Automatic pressure stabilizer for fire hydrant |
| JP2006095150A (en) * | 2004-09-30 | 2006-04-13 | Kitaura Seisakusho:Kk | Hydrant valve device, and fire hydrant apparatus |
| CN108144237A (en) * | 2017-12-11 | 2018-06-12 | 温州中盟智能科技有限公司 | A kind of intelligence hydrant system and intelligent fire hydrant hydraulic pressure control method |
| CN108999245A (en) * | 2018-07-04 | 2018-12-14 | 合肥欧语自动化有限公司 | A kind of intelligent fire bolt with hydraulic pressure detection |
| CN110159766A (en) * | 2019-04-30 | 2019-08-23 | 福建省贵峰消防科技有限公司 | A kind of Intelligent pressure reducing pressure stabilizing bolt |
| CN110131434A (en) * | 2019-05-15 | 2019-08-16 | 王拓 | A kind of valve body and its application method for fire hydrant |
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| CN112494874A (en) | 2021-03-16 |
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