CN111649788A - Large-caliber NB-IoT (network of things) Internet of things water meter - Google Patents
Large-caliber NB-IoT (network of things) Internet of things water meter Download PDFInfo
- Publication number
- CN111649788A CN111649788A CN202010661684.5A CN202010661684A CN111649788A CN 111649788 A CN111649788 A CN 111649788A CN 202010661684 A CN202010661684 A CN 202010661684A CN 111649788 A CN111649788 A CN 111649788A
- Authority
- CN
- China
- Prior art keywords
- iot
- pipe wall
- air bag
- pipeline
- water meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000007789 sealing Methods 0.000 claims abstract 2
- 238000004891 communication Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000006855 networking Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000004429 Calibre Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/28—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a large-caliber NB-IoT (NB-IoT) Internet of things water meter, which comprises a pipeline, wherein flanges are welded at two ends of the pipeline, and the pipeline comprises a cylindrical straight pipe wall and a reducing pipe wall; the water meter comprises a guide wing, a rotary rod, a rotary wing, a front fixing frame, a valve plate and a rear fixing frame which are arranged in a pipeline in sequence along the water flow direction, and a pressed air bag is arranged between the valve plate and the rear fixing frame; an electric control box and an actuator box are arranged at the top end of the outer wall of the pipeline side by side, an electric cylinder and a main pressure air bag are arranged in the electric control box and the actuator box, and the main pressure air bag and the compressed air bag are communicated; the top ends of the electric control box and the actuator box are provided with box covers in a sealing mode, the upper end faces of the box covers are provided with a control device and a display screen in parallel, the control device and the display screen are hinged, and the display screen is provided with a microswitch. The large-caliber NB-IoT Internet of things water meter integrates the metering side and the valve side into an integral structure, and is small in size and light; the special valve opening/closing mode is not easy to block and jam, and the energy consumption is low; intermittent opening and closing prevents water hammer.
Description
Technical Field
The invention relates to the technical field of water meters, in particular to a large-caliber NB-IoT (NB-IoT) Internet of things water meter.
Background
The water meter measures water flow, and measured data is an accumulated flow value which is in volume/volume units. The large-caliber water meter is a water meter with a nominal caliber of 50mm (DN50) or more, and is also an industrial water meter, so that the large-caliber water meter is different from a civil water meter.
Thing networking water gauge is the typical representative of wireless transmission water gauge, and the main communication mode of thing networking teletransmission water gauge includes: lora communication form, NB-IoT communication form, its characterized in that: low power consumption, low cost, wide coverage and strong link. Meanwhile, the internet of things remote-transmission water meter can rapidly realize the work of on-line metering, on-line management and control, on-line payment, on-line quotation, on-line meter reading and the like, has stable transmission, small delay and high reliability, realizes the construction and application of big data processing and cloud water work, and is an ideal metering instrument in intelligent water work.
At present, the large-caliber Internet of things remote water meter is realized by adding a module with a wireless transmission function and adding a self-control stop valve on the basis of the large-caliber water meter, and the metering side and the valve side of the water meter can be clearly seen from the appearance as two independent parts which are connected with the wireless transmission function module. However, the conventional combined large-caliber internet of things remote water meter has the following disadvantages:
1. the water meter is large and heavy;
2. the structure of the stop valve with low inlet and high outlet is easy to block; the rotating structure of the ball valve has high power consumption and is easy to jam;
3. the valve is opened and closed quickly to generate water hammer.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides a large-caliber NB-IoT (network B-IoT) Internet of things water meter, which integrates a metering side and a valve side into an integral structure, and has small volume and light weight; the special valve opening/closing mode is not easy to block and jam, and the energy consumption is low; intermittent opening and closing prevents water hammer.
The technical scheme adopted by the invention is as follows:
the utility model provides a heavy-calibre NB-IoT thing networking water gauge, includes the pipeline, the both ends welding of pipeline is provided with the flange, and the inside pipe wall of pipeline front end sets up to cylindric straight tube wall:
the inner pipe wall of the pipeline behind the straight pipe wall is set to be a reducing pipe wall;
the water meter comprises a guide wing, a rotary rod, a rotary wing, a front fixing frame, a valve plate and a rear fixing frame which are arranged in the pipeline in sequence along the water flow direction:
the guiding wing is used for shunting water flow entering a pipeline, the front end of the rotary rod is fixedly connected with the rear end of the guiding wing, the rotary wing is rotatably arranged on the rotary rod, a sensor is embedded in the rotary rod and used for detecting the rotary state of the rotary wing and measuring water flow, the front fixing frame is fixedly arranged on the inner wall of the pipeline at the joint of the straight pipe wall and the reducing pipe wall and forms a flow passing groove, the rear fixing frame is arranged behind the reducing pipe wall and forms the flow passing groove, the valve plate is arranged between the front fixing frame and the rear fixing frame and matched with the rear end of the reducing pipe wall, and a compressed air bag is connected and arranged between the valve plate and the rear fixing frame;
an electrical control box and an actuator box are arranged at the upper top end of the outer wall of the pipeline side by side along the front-back direction, a through hole is communicated between the electrical control box and the actuator box, an electric air hole penetrates through the bottom of the electrical control box, a sensor lead penetrates through the electric hole, an electric cylinder is fixedly arranged in the electrical control box, a push-pull disc is arranged at the stroke end of the electric cylinder, a main pressure air bag is fixedly arranged on the push-pull disc, the main pressure air bag is arranged in the actuator box, an air hole penetrates through the bottom of the actuator box and is used for communicating the main pressure air bag with a pressed air bag;
the top seal of electrical control box, executor box is provided with the lid, be provided with controlling means, display screen on the up end of lid side by side, controlling means's control terminal electrical connection is on sensor lead wire, electric jar lead wire, the integrated module that is provided with NB-IoT communication protocol in the controlling means, the display screen sets up with controlling means is articulated to be provided with the inching switch on the display screen.
Furthermore, the reducing pipe wall is a curved surface protruding towards the central axis of the pipeline, and the joint of the straight pipe wall and the reducing pipe wall is in smooth transition so as to improve the flow velocity of the fluid;
the rear end of the reducing pipe wall is provided with an expanding pipe wall, and the joint of the reducing pipe wall and the expanding pipe wall is in smooth transition and is used for being matched with the valve plate.
Furthermore, the guide wings are distributed along the circular array of the central axis of the pipeline to form a plurality of groups, the outer rings of the guide wings are provided with fixing rings, the front end faces of the front flanges protrude out of the front end faces of the straight pipe walls to form notches, the notches are used for accommodating the fixing rings, the fixing rings are distributed along the circular array of the central line of the fixing rings to form fixing hole groups, the fixing rings are fixed on the front end faces of the straight pipe walls, the guide heads are arranged at the inner rings of the guide wings, through holes are formed in the central axis of the guide heads, and slots are formed in the rear end faces of the guide heads.
Furthermore, a raised head is convexly arranged on the front end face of the rotary rod forwards and is inserted into the slot, a fixing screw hole which has the same central axis with the through hole is arranged in the center of the front end face of the raised head, a bolt penetrates through the through hole and is in threaded connection with the fixing screw hole to fixedly connect the rotary rod to the guide head, magnetic sensor groups are distributed in the middle of the rotary rod along the central axis of the rotary rod in a circular array, and a wire guide hole for penetrating through a lead of the magnetic sensor groups is arranged in the rotary rod;
the rear end of the rotary rod is fixedly provided with a front fixing frame, and a threading hole communicated with the wire hole is formed in the front fixing frame.
Furthermore, a plurality of key grooves are formed in the raised head, and meanwhile, a plurality of pin keys matched with the key grooves are formed in the side walls of the slots.
Furthermore, the rotary wings are distributed along the circular array of the central axis of the rotary rod to form a plurality of groups, the inner rings of the rotary wings are provided with sliding sleeves which are sleeved on the rotary rod, and the middle parts of the sliding sleeves are distributed along the circular array of the central axis of the sliding sleeves to form magnetic steel groups.
Furthermore, the guide head, the sliding sleeve and the front fixing frame are of cylindrical structures with the same outer diameter, damping springs are arranged at two ends of the sliding sleeve respectively, and the damping springs are abutted against the guide head and the front fixing frame respectively and form thrust.
Furthermore, an air passage for communicating the pressed air bag and the air hole is arranged in the rear fixing frame.
Furthermore, an external interface for connecting external equipment is arranged on the side wall of the electrical control box, a plurality of line cards for clamping lead wires are arranged on the inner wall of the electrical control box, and a dovetail groove is convexly arranged on the side wall of the actuator box, which is far away from the perforation;
the push-pull disc is provided with a plurality of connecting holes for being fixedly connected with the compression surface of the main compression air bag in a penetrating mode, the rear end face of the main compression air bag is provided with a T-shaped clamping plate, and the clamping plate is inserted into the dovetail groove.
A working method of a large-caliber NB-IoT Internet of things water meter comprises the following steps:
the metering process comprises the following steps:
the water flow is divided to the guide wings from front to back through the guide heads, and the rotary wings are washed through gaps between the guide wings, so that the rotary wings rotate, meanwhile, the magnetic steel group arranged in the sliding sleeve for fixing the rotary wings rotates together, the magnetic steel group triggers the magnetic sensor group to generate pulse signals and sends the pulse signals to the control device, and the number of the rotary turns of the rotary wings is determined through the pulse number of the pulse signals in the control device, so that the water flow is determined, and the metering effect is achieved;
remote communication:
the metering data is packaged and uploaded to a terminal background through an NB-IoT communication protocol integrated in the control device, so that remote metering and online control of a management side are realized, and remote online payment, payment reminding and balance inquiry of a user side are realized;
digital display query:
the display screen arranged on the upper end face of the box cover rotates along the hinge shaft hinged with the control device, when the display screen rotates upwards, the microswitch is triggered, and the microswitch controls the backlight of the display screen to be opened, so that a user can conveniently observe the water meter allowance through the lighted display screen;
arrearage stop table:
when the balance in the prepayment water meter is zero, namely the prepayment state is an arrearage state, at the moment, the control device controls the electric cylinder to perform intermittent forward action, the stroke end of the electric cylinder is pressed against the main pressure air bag, so that the gas in the main pressure air bag sequentially passes through the air hole and the air passage until entering the pressed air bag, and the pressed air bag is pushed forward, the valve plate arranged at the front end of the pressed air bag is clamped in the wall of the reducing pipe, and the water is blocked from flowing backwards, so that the effect of stopping the water flow is achieved;
and (4) recharging and opening valves:
after the user recharges, when the balance in the prepayment water meter is more than zero, the control device controls the electric cylinder to intermittently and reversely act, the water pressure at the front end of the valve plate pushes the valve plate to move backwards, and at the moment, the gas in the pressurized gas bag sequentially passes through the air passage and the air hole until entering the main pressure gas bag;
the electric cylinder intermittently acts in a forward/reverse direction, so that the gap between the valve plate and the reducing pipe wall is intermittently closed/opened, and the water hammer is prevented from being generated to damage the water conveying pipeline.
The large-caliber NB-IoT Internet of things water meter has the advantages that:
1. the metering side and the valve side of the water meter are integrated into an integral structure, so that the leakage of the two groups of connecting parts is prevented, the volume is reduced, and the water meter is more portable during installation;
2. the valve plate is moved in an air pressure mode, and the valve plate and the reducing pipe wall adjust the opening/closing of the valve;
3. the magnetic steel group is triggered and sealed to be provided with the magnetic sensor group, so that the service life and the metering accuracy of the magnetic sensor group are improved;
4. the intermittent opening/closing of the valve prevents water hammer.
Drawings
In order to more clearly illustrate the embodiments of the present invention, reference will now be made in brief to the accompanying drawings, which are needed in the description, and in which embodiments of the present invention are illustrated.
Fig. 1 is a general cross-sectional perspective view of a large-caliber NB-IoT internet of things water meter according to an embodiment of the present invention;
fig. 2 is an exploded schematic diagram of a large-caliber NB-IoT internet of things water meter according to an embodiment of the present invention;
fig. 3 is a partially enlarged schematic view of a large-caliber NB-IoT internet of things water meter according to an embodiment of the present invention;
fig. 4 is a partially enlarged schematic view of a large-caliber NB-IoT internet of things water meter according to an embodiment of the present invention;
fig. 5 is a schematic partial enlarged view of a large-caliber NB-IoT internet of things water meter according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a large-caliber NB-IoT internet of things water meter according to an embodiment of the present invention.
In the figure:
11. guide wings 111, fixing rings 112, fixing hole groups 113, guide heads 114, through holes 115 and slots,
12. a rotating rod 121, a convex head 122, a fixing screw hole 123, a magnetic sensor group 124, a wire guide hole,
13. rotary wings 131, a sliding sleeve 132, a damping spring 133 and a magnetic steel group,
14. a front fixing frame 141 and a threading hole,
15. a rear fixing frame 151, an air passage,
16. a valve plate 161, a pressed air bag,
21-A, an electric control box, 21-B, an actuator box, 20, a perforation, 22, an electric hole, 23, an external interface, 24, a line card, 25, an electric cylinder, 251, a connecting hole, 26, a push-pull disc, 27, an air hole, 28, a main pressure air bag, 281, a clamping plate, 29 and a dovetail groove,
31. a box cover 32, a control device 33 and a display screen,
40. pipeline 41, flange 42, straight pipe wall 43, reducing pipe wall 44 and expanding pipe wall.
Detailed Description
In order to clearly and clearly illustrate the specific implementation objects and the implementation modes of the invention, the technical scheme of the invention is completely described below, and the described examples are a part of the examples of the invention, but not all the examples. All other embodiments based on the described embodiments of the invention are within the scope of the invention without any inventive step.
The invention relates to a large-caliber NB-IoT (NB-IoT) Internet of things water meter, which is shown in figures 1 and 6 and comprises the following components: the pipeline 40, the both ends welding of pipeline 40 is provided with flange 41, and the inside pipe wall of pipeline 40 front end sets up to cylindric straight tube wall 42:
as shown in fig. 1 and 6, the inner wall of the pipeline 40 behind the straight pipe wall 42 is provided with a reduced diameter pipe wall 43, the reduced diameter pipe wall 43 is provided with a curved surface protruding towards the central axis of the pipeline 40, and the joint between the straight pipe wall 42 and the reduced diameter pipe wall 43 is in smooth transition so as to improve the flow velocity of the fluid; the rear end of the reducing pipe wall 43 is provided with a flared pipe wall 44, and the joint of the reducing pipe wall 43 and the flared pipe wall 44 is in smooth transition for matching with the valve plate 16.
As shown in fig. 1 and 6, the water meter includes a guiding wing 11, a rotary rod 12, a rotary fin 13, a front fixing frame 14, a valve plate 16, and a rear fixing frame 15, which are sequentially disposed in a pipeline 40 along a water flow direction:
as shown in fig. 2, the guiding wings 11 are used for splitting water flow entering the pipeline 40, the guiding wings 11 are distributed in a circular array along a central axis of the pipeline 40, a plurality of groups of guiding wings 11 are arranged at outer rings of the guiding wings 11, front end surfaces of the front flanges 41 protrude out of front end surfaces of the straight pipe walls 42, so that the front end surfaces of the straight pipe walls 42 form gaps, the gaps are used for accommodating the fixing rings 111, fixing hole groups 112 are distributed on the fixing rings 111 in a circular array along a central line thereof, so as to fix the fixing rings 111 on the front end surfaces of the straight pipe walls 42, guiding heads 113 are arranged at inner rings of the guiding wings 11, through holes 114 are arranged on the central line of the guiding heads 113 in a penetrating manner, and as shown in fig. 4, slots 115 are arranged on rear end.
As shown in fig. 2, 3 and 6, a protrusion 121 is provided on a front end surface of the rotary rod 12 in a protruding manner, the protrusion 121 is provided with a plurality of key slots, pin keys are inserted into the key slots and the slot 115, the protrusion 121 is inserted into the slot 115, a fixing screw hole 122 having a central axis common to the through hole 114 is provided in a center of the front end surface of the protrusion 121, the fixing screw hole 122 is inserted into the through hole 114 through a bolt and is screwed with the fixing screw hole 122 to fixedly connect the rotary rod 12 to the guide head 113 in the center of the guide vane 11, a magnetic sensor group 123 is distributed in a circular array along a central axis of the middle part of the rotary rod 12 to detect a rotation state of the rotary fin 13 and measure water flow, and a wire guide hole 124 for passing a lead of the magnetic sensor group 123 is provided in the rotary rod 12; the rear end of the rotary rod 12 is fixedly provided with a front fixing frame 14, and the front fixing frame 14 is internally provided with a threading hole 141 communicated with the thread guide hole 124.
As shown in fig. 2 and 6, the rotary fins 13 are rotatably disposed on the rotary rod 12, a plurality of groups of rotary fins 13 are distributed in a circular array along the central axis of the rotary rod 12, a sliding sleeve 131 slidably sleeved on the rotary rod 12 is disposed at the inner ring of the rotary fin 13, a magnetic steel group 133 is distributed in the middle of the sliding sleeve 131 in a circular array along the central axis thereof, the magnetic steel group 133 is matched with the magnetic sensor group 123, damping springs 132 are disposed at two ends of the sliding sleeve 131, and the damping springs 132 are respectively abutted to the guide head 113 and the front fixing frame 14 and form thrust.
As shown in fig. 1, 2 and 6, the front fixing frame 14 is a cylindrical structure having the same outer diameter as the guide head 113 and the sliding sleeve 131, the front fixing frame 14 is fixedly arranged on the inner wall of the pipeline 40 at the joint of the straight pipe wall 42 and the reduced pipe wall 43 and forms an overflow groove, the rear fixing frame 15 is arranged behind the reduced pipe wall 43 and forms an overflow groove, and an air passage 151 communicated with an air bag 161 to be compressed is arranged in the rear fixing frame 15.
As shown in fig. 1 and 6, the valve plate 16 is disposed between the front fixing frame 14 and the rear fixing frame 15, the valve plate 16 is matched with the rear end of the reducing pipe wall 43, and a compressed air bag 161 is connected between the valve plate 16 and the rear fixing frame 15.
As shown in fig. 1, an electrical control box 21-a and an actuator box 21-B are arranged side by side at the top end of the outer wall of the pipeline 40 along the front-back direction, an external interface 23 for connecting external equipment is arranged on the side wall of the electrical control box 21-a, a connection line is arranged in the external interface 23 in a penetrating manner until the communication section equipment, and a plurality of line cards 24 for clamping lead wires are arranged on the inner wall of the electrical control box 21-a; a dovetail groove 29 is convexly arranged on the side wall of the actuator box 21-B far away from one side of the through hole 20; a perforation 20 is communicated between the electric control box 21-A and the actuator box 21-B, an electric hole 22 is arranged at the bottom of the electric control box 21-A in a penetrating way, a sensor lead is arranged in the electric hole 22 in a penetrating way, the sensor lead is clamped in the wire clamp 24, an electric cylinder 25 is fixedly arranged in the electric control box 21-A, the stroke end of the electric cylinder 25 penetrates into the actuator box 21-B through the perforation 20, a push-pull disc 26 is arranged at the end part of the electric cylinder, a plurality of connecting holes 251 for fixedly connecting with the pressure surface of the main pressure air bag 28 are arranged on the push-pull disc 26 in a penetrating way, the main pressure air bag 28 is fixedly arranged on the push-pull disc 26, a T-shaped clamping plate 281 is arranged on the rear end surface of the main pressure air bag 28, the clamping plate 281 is inserted in the dovetail groove 29, the main pressure air bag 28 is arranged in the actuator box 21-B, an air hole 27 communicated with the main pressure air bag 28 penetrates through the bottom of the actuator box 21-B, and the air hole 27 is communicated with a pressed air bag 161 through an air passage 151.
As shown in fig. 1, a box cover 31 is hermetically disposed at the top end of the electrical control box 21-a and the actuator box 21-B, a control device 32 and a display screen 33 are disposed on the upper end surface of the box cover 31 in parallel, a control terminal of the control device 32 is electrically connected to a sensor lead and an electric cylinder 25 lead, a NB-IoT communication protocol module is integrated in the control device 32, the display screen 33 is hinged to the control device 32, and a micro switch is disposed on the display screen 33 and electrically connected to a backlight of the display screen 33.
With reference to the specific structure of the large-caliber NB-IoT internet of things water meter in the foregoing embodiment, the following further describes a working method of the large-caliber NB-IoT internet of things water meter:
the metering process comprises the following steps:
the water flow is divided to the guide wings 11 through the guide heads 113 from front to back, and washes the rotary wings 13 through gaps between the guide wings 11, so that the rotary wings 13 rotate, meanwhile, the magnetic steel group 133 arranged in the sliding sleeve 131 for fixing the rotary wings 13 rotates together, the magnetic steel group 133 triggers the magnetic sensor group 123 to generate pulse signals, and sends the pulse signals into the control device 32, and the number of the rotation turns of the rotary wings 13 is determined through the number of the pulses of the pulse signals in the control device 32, so that the water flow is determined, and the metering effect is achieved;
remote communication:
the metering data is packaged and uploaded to a terminal background through an NB-IoT communication protocol integrated in the control device 32, so that remote metering and online control of a management side are realized, and remote online payment, payment reminding and balance inquiry of a user side are realized;
digital display query:
the display screen 33 arranged on the upper end face of the box cover 31 rotates along a hinge shaft hinged with the control device 32, when the display screen 33 rotates upwards, the microswitch is triggered, and the microswitch controls the backlight of the display screen 33 to be opened, so that a user can observe the display screen 33 which is lighted, and the allowance of the water meter is increased;
arrearage stop table:
when the balance in the prepaid water meter is zero, namely the prepaid state is an arrearage state, at the moment, the control device 32 controls the electric cylinder 25 to intermittently and positively act, the stroke end of the electric cylinder 25 is pressed against the main pressure air bag 28, so that the gas in the main pressure air bag 28 sequentially passes through the air hole 27 and the air channel 151 until entering the pressed air bag 161, and the pressed air bag 161 is pushed forwards, the valve plate 16 arranged at the front end of the pressed air bag 161 is clamped into the reducing pipe wall 43, the water flow is blocked from flowing backwards, and the effect of stopping the water flow is achieved;
and (4) recharging and opening valves:
after the user recharges, when the balance in the prepaid water meter is more than zero, the control device 32 controls the electric cylinder 25 to intermittently and reversely act, the water pressure at the front end of the valve plate 16 pushes the valve plate 16 to move backwards, and at the moment, the gas in the pressed air bag 161 passes through the air passage 151 and the air hole 27 in sequence until entering the main pressed air bag 28;
the electric cylinder 25 intermittently moves forward/backward, so that the gap between the valve plate 16 and the reducing pipe wall 43 is intermittently closed/opened, and the intermittent interval time of the intermittent movement is more than or equal to 1.5 seconds, so that the water hammer generated when the water flow is suddenly cut off/opened is prevented from damaging the water conveying pipeline.
Based on the above, the embodiment of the large-caliber NB-IoT internet of things water meter and the working method thereof of the present invention is suggested, and through the above description, the relevant staff can make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a heavy-calibre NB-IoT thing networking water gauge, includes pipeline (40), the both ends welding of pipeline (40) is provided with flange (41), and the inside pipe wall of pipeline (40) front end sets up to cylindric straight tube wall (42), its characterized in that:
the inner pipe wall of the pipeline (40) behind the straight pipe wall (42) is provided with a reducing pipe wall (43);
the water meter comprises a guide wing (11), a rotary rod (12), a rotary wing (13), a front fixing frame (14), a valve plate (16) and a rear fixing frame (15) which are arranged in a pipeline (40) in sequence along the water flow direction:
the guide wing (11) is used for shunting water flow entering a pipeline (40), the front end of a rotary rod (12) is fixedly connected with the rear end of the guide wing (11), rotary wings (13) are rotatably arranged on the rotary rod (12), a sensor is embedded in the rotary rod (12) and used for detecting the rotating state of the rotary wings (13) and measuring water flow, a front fixing frame (14) is fixedly arranged on the inner wall of the pipeline (40) at the joint of a straight pipe wall (42) and a reducing pipe wall (43) and forms a flow passing groove, a rear fixing frame (15) is arranged behind the reducing pipe wall (43) and forms a flow passing groove, a valve plate (16) is arranged between the front fixing frame (14) and the rear fixing frame (15), the valve plate (16) is matched with the rear end of the reducing pipe wall (43), a pressed air bag (161) is connected between the valve plate (16) and the rear fixing frame (15),
an electrical control box (21-A) and an actuator box (21-B) are arranged at the upper top end of the outer wall of the pipeline (40) side by side along the front-back direction, a through hole (20) is communicated between the electrical control box (21-A) and the actuator box (21-B), an electrical hole (22) is arranged at the bottom of the electrical control box (21-A) in a penetrating manner, a sensor lead is arranged in the electrical hole (22) in a penetrating manner, an electrical cylinder (25) is fixedly arranged in the electrical control box (21-A), a push-pull disc (26) is arranged at the stroke end of the electrical cylinder (25), a main pressure air bag (28) is fixedly arranged on the push-pull disc (26), the main pressure air bag (28) is arranged in the actuator box (21-B), an air hole (27) is arranged at the bottom of the actuator box (21-B) in a penetrating manner, and the air hole (27) is used for communicating the main pressure air bag (28,
the top end of the electric control box (21-A) and the top end of the actuator box (21-B) are provided with a box cover (31) in a sealing mode, a control device (32) and a display screen (33) are arranged on the upper end face of the box cover (31) in parallel, a control terminal of the control device (32) is electrically connected to a sensor lead and an electric cylinder (25) lead, a module of an NB-IoT communication protocol is arranged in the control device (32) in an integrated mode, the display screen (33) is hinged to the control device (32), and a microswitch is arranged on the display screen (33).
2. The large-caliber NB-IoT IOT (Internet of things) water meter according to claim 1, characterized in that:
the reducing pipe wall (43) is a curved surface protruding towards the central axis of the pipeline (40), and the joint of the straight pipe wall (42) and the reducing pipe wall (43) is in smooth transition so as to improve the flow velocity of fluid;
the rear end of the reducing pipe wall (43) is provided with a flared pipe wall (44), and the joint of the reducing pipe wall (43) and the flared pipe wall (44) is in smooth transition and is used for being matched with the valve plate (16).
3. The large-caliber NB-IoT IOT (Internet of things) water meter according to claim 1, characterized in that:
the guide wing (11) is provided with a plurality of groups along the circular array distribution of the central axis of the pipeline (40), the outer ring of the guide wing (11) is provided with a fixing ring (111), the front end face of the front flange (41) protrudes out of the front end face of the straight pipe wall (42) to form a notch, the notch is used for accommodating the fixing ring (111), the fixing ring (111) is provided with fixing hole groups (112) along the circular array distribution of the central line of the fixing ring (111) to fix the fixing ring (111) on the front end face of the straight pipe wall (42), the inner ring of the guide wing (11) is provided with a guide head (113), the central axis of the guide head (113) is provided with a through hole (114) in a penetrating manner, and the rear end face of the guide head (113) is provided with a slot (.
4. The large-caliber NB-IoT IOT (Internet of things) water meter according to claim 3, characterized in that:
a raised head (121) is arranged on the front end face of the rotating rod (12) in a protruding mode forwards, the raised head (121) is inserted into the slot (115), a fixing screw hole (122) which is coaxial with the through hole (114) is formed in the center of the front end face of the raised head (121), the raised head penetrates through the through hole (114) through a bolt and is in threaded connection with the fixing screw hole (122) so that the rotating rod (12) can be fixedly connected to the guide head (113), magnetic sensor groups (123) are distributed in the middle of the rotating rod (12) in a circular array mode along the central axis of the rotating rod, and wire holes (124) for penetrating through leads of the magnetic sensor groups (123) are formed in the rotating rod (12);
the rear end of the rotary rod (12) is fixedly provided with a front fixing frame (14), and a threading hole (141) communicated with the wire guide hole (124) is arranged in the front fixing frame (14).
5. The large-caliber NB-IoT IOT (Internet of things) water meter according to claim 4, characterized in that:
a plurality of key grooves are formed in the raised head (121), and meanwhile a plurality of pin keys matched with the key grooves are formed in the side wall of the slot (115).
6. The large-caliber NB-IoT IOT (Internet of things) water meter according to claim 4, characterized in that:
the rotary wing (13) is provided with a plurality of groups along the circular array of the central axis of the rotary rod (12), the inner ring of the rotary wing (13) is provided with a sliding sleeve (131) which is sleeved on the rotary rod (12) in a sliding manner, and the middle part of the sliding sleeve (131) is provided with a magnetic steel group (133) along the circular array of the central axis thereof.
7. The large-caliber NB-IoT IOT water meter of claim 6, wherein:
the guide head (113), the sliding sleeve (131) and the front fixing frame (14) are arranged to be of a cylindrical structure with the same outer diameter, damping springs (132) are arranged at two ends of the sliding sleeve (131) respectively, and the damping springs (132) are connected with the guide head (113) and the front fixing frame (14) in a propping mode respectively and form thrust.
8. The large-caliber NB-IoT IOT water meter of claim 7, wherein:
an air passage (151) which is communicated with the pressed air bag (161) and the air hole (27) is arranged in the rear fixing frame (15).
9. The large-caliber NB-IoT IOT (Internet of things) water meter according to claim 1, characterized in that:
an external interface (23) for connecting external equipment is arranged on the side wall of the electric control box (21-A), a plurality of line cards (24) for clamping lead wires are arranged on the inner wall of the electric control box (21-A), and a dovetail groove (29) is convexly arranged on the side wall of the actuator box (21-B) far away from one side of the through hole (20);
the push-pull disc (26) is provided with a plurality of connecting holes (251) which are fixedly connected with the pressure surface of the main pressure air bag (28) in a penetrating manner, the rear end surface of the main pressure air bag (28) is provided with a T-shaped clamping plate (281), and the clamping plate (281) is inserted into the dovetail groove (29).
10. The working method of the large-caliber NB-IoT Internet of things water meter according to claim 8, characterized in that:
the metering process comprises the following steps:
the water flow is divided to the guide wings (11) through the guide heads (113) from front to back, and the rotary wings (13) are washed through gaps between the guide wings (11), so that the rotary wings (13) rotate, meanwhile, the magnetic steel group (133) arranged in the sliding sleeve (131) for fixing the rotary wings (13) rotates together, the magnetic steel group (133) triggers the magnetic sensor group (123) to generate pulse signals and sends the pulse signals to the control device (32), and the number of the rotating turns of the rotary wings (13) is determined through the pulse number of the pulse signals in the control device (32), so that the water flow is determined, and the metering effect is achieved;
remote communication:
the metering data is packaged and uploaded to a terminal background through an NB-IoT communication protocol integrated in a control device (32), so that remote metering and online control of a management side and remote online payment, payment reminding and balance inquiry of a user side are realized;
digital display query:
a display screen (33) arranged on the upper end surface of the box cover (31) rotates along a hinged shaft hinged with the control device (32), when the display screen (33) rotates upwards, a microswitch is triggered, and the microswitch controls the backlight of the display screen (33) to be opened, so that a user can observe the display screen (33) which is lightened, and the allowance of the water meter is increased;
arrearage stop table:
when the balance in the prepayment water meter is zero, namely the prepayment state is an arrearage state, at the moment, the control device (32) controls the intermittent forward electric cylinder (25) to act, the stroke end of the electric cylinder (25) is pressed against the main pressure air bag (28), so that the gas in the main pressure air bag (28) sequentially passes through the air hole (27) and the air passage (151) until entering the pressed air bag (161) and the pressed air bag (161) is pushed forward, the valve plate (16) arranged at the front end of the pressed air bag (161) is clamped in the reducing pipe wall (43) to prevent the water flow from flowing backwards, and the effect of stopping the water flow is achieved;
and (4) recharging and opening valves:
after a user recharges, when the balance in the prepayment water meter is more than zero, the control device (32) controls the electric cylinder (25) to intermittently and reversely act, the water pressure at the front end of the valve plate (16) pushes the valve plate (16) to move backwards, and at the moment, the gas in the pressurized air bag (161) sequentially passes through the air passage (151) and the air hole (27) until entering the main pressure air bag (28);
the electric cylinder (25) intermittently moves forwards or backwards, so that the gap between the valve plate (16) and the reducing pipe wall (43) is intermittently closed/opened, and the water hammer is prevented from generating to damage the water conveying pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010661684.5A CN111649788B (en) | 2020-07-10 | 2020-07-10 | Large-caliber NB-IoT (network of things) Internet of things water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010661684.5A CN111649788B (en) | 2020-07-10 | 2020-07-10 | Large-caliber NB-IoT (network of things) Internet of things water meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111649788A true CN111649788A (en) | 2020-09-11 |
| CN111649788B CN111649788B (en) | 2022-04-05 |
Family
ID=72346069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010661684.5A Active CN111649788B (en) | 2020-07-10 | 2020-07-10 | Large-caliber NB-IoT (network of things) Internet of things water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111649788B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253839A (en) * | 2020-10-20 | 2021-01-22 | 中阀控股（集团）有限公司 | Hydraulic control valve for detecting flow velocity in real time |
| CN117053888A (en) * | 2023-10-10 | 2023-11-14 | 山东晨晖电子科技有限公司 | Internet of things water meter convenient to detach |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB580066A (en) * | 1944-05-05 | 1946-08-26 | British Electric Meters Ltd | Improvements relating to water meters |
| FR2360871A1 (en) * | 1976-08-03 | 1978-03-03 | Interatom | Pipe contg. flow-rate measurement section - has pocket allowing flowmeter changing without opening circulation system, used esp. in liq. sodium nuclear reactor cooling system |
| DE19600749A1 (en) * | 1995-09-13 | 1997-03-20 | Schlumberger Rombach Gmbh | Temporary sealing of gas supply pipes |
| US20050007260A1 (en) * | 2003-06-13 | 2005-01-13 | Dan Winter | Meter register and remote meter reader utilizing a stepper motor |
| CN1955689A (en) * | 2005-10-28 | 2007-05-02 | 天津市津南区凯达电子有限公司 | Device for preventing water burglary of drip |
| JP2008224644A (en) * | 2007-03-14 | 2008-09-25 | Akimori Matsubara | Device which does not measure back-flow of water meter |
| CN201680884U (en) * | 2010-05-21 | 2010-12-22 | 北京中盛华旭电子科技有限公司 | Full interception device |
| KR101290447B1 (en) * | 2013-05-13 | 2013-07-26 | 한국아이치 주식회사 | An anti-freezing water meters had an airbag |
| CN104024808A (en) * | 2011-12-23 | 2014-09-03 | 普罗梅拉有限两合公司 | Method for dispensing a fluid medium |
| WO2016011813A1 (en) * | 2014-07-21 | 2016-01-28 | 杭州竞达电子有限公司 | Electronic intelligent helical-vaned small-caliber water meter |
| EP3112819A1 (en) * | 2015-06-30 | 2017-01-04 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Miniature differential pressure flow sensor |
| CN110031053A (en) * | 2019-05-17 | 2019-07-19 | 淄博贝林电子有限公司 | A kind of remote transmission intelligent water meter |
| CN110397777A (en) * | 2019-08-26 | 2019-11-01 | 新疆石大国利农业科技股份有限公司 | A wireless intelligent electric control butterfly valve |
| CN209910760U (en) * | 2019-05-17 | 2020-01-07 | 常州天厚仪表科技有限公司 | Wireless water gauge of environment-friendly |
| CN110702184A (en) * | 2019-11-18 | 2020-01-17 | 中润智控物联网科技有限公司 | NB-IOT (network b-internet of things) valve control vertical water meter |
-
2020
- 2020-07-10 CN CN202010661684.5A patent/CN111649788B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB580066A (en) * | 1944-05-05 | 1946-08-26 | British Electric Meters Ltd | Improvements relating to water meters |
| FR2360871A1 (en) * | 1976-08-03 | 1978-03-03 | Interatom | Pipe contg. flow-rate measurement section - has pocket allowing flowmeter changing without opening circulation system, used esp. in liq. sodium nuclear reactor cooling system |
| DE19600749A1 (en) * | 1995-09-13 | 1997-03-20 | Schlumberger Rombach Gmbh | Temporary sealing of gas supply pipes |
| US20050007260A1 (en) * | 2003-06-13 | 2005-01-13 | Dan Winter | Meter register and remote meter reader utilizing a stepper motor |
| CN1955689A (en) * | 2005-10-28 | 2007-05-02 | 天津市津南区凯达电子有限公司 | Device for preventing water burglary of drip |
| JP2008224644A (en) * | 2007-03-14 | 2008-09-25 | Akimori Matsubara | Device which does not measure back-flow of water meter |
| CN201680884U (en) * | 2010-05-21 | 2010-12-22 | 北京中盛华旭电子科技有限公司 | Full interception device |
| CN104024808A (en) * | 2011-12-23 | 2014-09-03 | 普罗梅拉有限两合公司 | Method for dispensing a fluid medium |
| KR101290447B1 (en) * | 2013-05-13 | 2013-07-26 | 한국아이치 주식회사 | An anti-freezing water meters had an airbag |
| WO2016011813A1 (en) * | 2014-07-21 | 2016-01-28 | 杭州竞达电子有限公司 | Electronic intelligent helical-vaned small-caliber water meter |
| EP3112819A1 (en) * | 2015-06-30 | 2017-01-04 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Miniature differential pressure flow sensor |
| CN110031053A (en) * | 2019-05-17 | 2019-07-19 | 淄博贝林电子有限公司 | A kind of remote transmission intelligent water meter |
| CN209910760U (en) * | 2019-05-17 | 2020-01-07 | 常州天厚仪表科技有限公司 | Wireless water gauge of environment-friendly |
| CN110397777A (en) * | 2019-08-26 | 2019-11-01 | 新疆石大国利农业科技股份有限公司 | A wireless intelligent electric control butterfly valve |
| CN110702184A (en) * | 2019-11-18 | 2020-01-17 | 中润智控物联网科技有限公司 | NB-IOT (network b-internet of things) valve control vertical water meter |
Non-Patent Citations (2)
| Title |
|---|
| MADERSHAHIAN, NAVID: "The Impact of Intraaortic Balloon Counterpulsation on Bypass Graft Flow in Patients with Peripheral ECMO", 《JOURNAL OF CARDIAC SURGERY》 * |
| 张辉: "基于气囊脉动稳压控液的自动启膜皂膜流量计开发", 《自动化仪表》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253839A (en) * | 2020-10-20 | 2021-01-22 | 中阀控股（集团）有限公司 | Hydraulic control valve for detecting flow velocity in real time |
| CN117053888A (en) * | 2023-10-10 | 2023-11-14 | 山东晨晖电子科技有限公司 | Internet of things water meter convenient to detach |
| CN117053888B (en) * | 2023-10-10 | 2024-01-09 | 山东晨晖电子科技有限公司 | Internet of things water meter convenient to detach |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111649788B (en) | 2022-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109138948B (en) | Underground pressure-controlled intelligent water distributor and use method thereof | |
| CN111649788B (en) | Large-caliber NB-IoT (network of things) Internet of things water meter | |
| CN106150456B (en) | A kind of water injection well on-line intelligence regulation water nozzle device | |
| CN109830642B (en) | Special anticreep battery of toy | |
| CN111141351B (en) | Water meter movement of drip metering high-precision internet of things and base meter thereof | |
| CN110848396B (en) | Stop valve capable of dynamically sampling | |
| CN110968121B (en) | Flow passively regulated intermediate device | |
| CN106768122B (en) | Integral movement compound water meter | |
| CN209656362U (en) | A kind of designated depth water sampling device | |
| CN105257858B (en) | Supersonic wave metering ball valve | |
| CN109091789B (en) | Fire hydrant system and flow rate monitoring method thereof | |
| CN117191138A (en) | Vertical valve control ultrasonic water meter pipe section | |
| CN111059309A (en) | Intelligent water injection instrument | |
| CN109538196A (en) | It is a kind of suitable for eccentric injection mandrel test envelope measurement and adjustment instrument and test envelope measurement and adjustment instrument method | |
| CN116358649B (en) | Intelligent water meter with Bluetooth communication function | |
| CN112556765A (en) | Reciprocating gas flowmeter and working method thereof | |
| CN208750061U (en) | A kind of multichannel flow control valve | |
| CN203522705U (en) | Waterproof pulse counter | |
| CN100408984C (en) | Precision metering system for transporting liquid and gas by pipeline | |
| EP3997421A1 (en) | Volume flowmeter and method for determining a volumetric flow rate | |
| CN114352793A (en) | Intelligent industrial gas cylinder valve and intelligent industrial gas cylinder management system | |
| CN218267558U (en) | Valve aperture appearance structure | |
| CN201021897Y (en) | Compound water-saving water meter | |
| CN213271193U (en) | Balance valve with flow detection function | |
| CN220853717U (en) | Vertical valve control ultrasonic water meter pipe section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |