NB remote ultrasonic water meter capable of intelligent monitoring

Abstract

The application discloses an NB remote transmission ultrasonic water meter capable of intelligent monitoring and relates to the technical field of water meters.The water meter comprises a pipe section, an upper portion of the pipe section is provided with a machine box, a connecting section is arranged in the middle of the pipe section, an energy converter hole one is arranged on the upper portion of the connecting section, a positioning groove is arranged on the upper surface of the connecting section, a buffer slope is arranged on the inner side of the connecting section, a reflecting surface is arranged on the inner wall of the connecting section, a first pressure sensor is threadedly connected to the side surface of the pipe section, connecting heads are fixedly connected to the left and right ends of the pipe section, a connecting end is threadedly connected to the side surface of the connecting head, a flange is fixedly connected to the side surface of the connecting end, and a second pressure sensor is fixedly installed on the inner wall of the connecting end.The connecting end is arranged to combine and connect the ultrasonic water meter and a pipeline to be detected, the surrounding shell is arranged to combine and connect the machine box and the pipe section, the combination and connection of the ultrasonic water meter are realized, the ultrasonic water meter is convenient to disassemble, overhaul and replace, and it is convenient to replace and adjust according to the needs of the pipeline to be detected.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water meters, in particular to an NB remote transmission ultrasonic water meter capable of intelligent monitoring. BACKGROUND

[0002] The ultrasonic water meter is a new type of water meter which detects the time difference caused by the change of the speed of the ultrasonic sound beam when propagating in the water, analyzes and processes the flow rate of the water, and further calculates the flow rate of the water.

[0003] In the prior art, the NB remote ultrasonic water meter is a structure combined with a pipe section and a case, and according to the pipe environment, the pipe section inner diameter, the flange structure, the ultrasonic transducer parameters in the case and the like, different requirements are needed, and with the flow of the fluid in the pipe, the end of the ultrasonic transducer is also easily damaged due to scouring, and the common ultrasonic water meter structure is inconvenient to disassemble, and it is inconvenient to replace and maintain the flange, the ultrasonic transducer and the like. SUMMARY

[0004] The application provides an NB remote transmission ultrasonic water meter capable of intelligent monitoring to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: an NB remote transmission ultrasonic water meter capable of intelligent monitoring, comprising a pipe section, wherein an upper portion of the pipe section is provided with a case;

[0006] A connecting section is arranged in the middle of the pipe section, an ultrasonic transducer hole one is arranged on the upper portion of the connecting section, a positioning groove is arranged on the upper surface of the connecting section, a buffer slope is arranged on the inner side of the connecting section, a reflecting surface is arranged on the inner wall of the connecting section, a first pressure sensor is threadedly connected to the side surface of the pipe section, connecting heads are fixedly connected to the left and right ends of the pipe section, a connecting end is threadedly connected to the side surface of the connecting head, a flange is fixedly connected to the side surface of the connecting end, a second pressure sensor is fixedly installed on the inner wall of the connecting end, and a wiring end is fixedly installed on the side surface of the connecting end.

[0007] A supporting plate is clamped to the bottom of the case, a surrounding shell is fixedly connected to the bottom of the supporting plate, a positioning protrusion is fixedly connected to the bottom of the supporting plate, an ultrasonic transducer hole two is arranged on the lower surface of the supporting plate, an ultrasonic transducer is inserted into the ultrasonic transducer hole two, a baffle is arranged in the middle of the case, a PCB board is arranged in the middle of the baffle, an electronic watch dial is arranged above the baffle, a battery box is arranged at the left end of the case, an NB-IOT module is arranged at the right end of the case, and wires are arranged at the lower end of the supporting plate.

[0008] Further, the transducer hole one is provided with two, the buffer slope is provided at the opposite side of two transducer hole one, the buffer slope is inclined to the transducer hole one side and is gentle, and the buffer slope is close to the transducer hole one side and is semicircular arc.

[0009] Further, the reflecting surface is provided with two, two reflecting surfaces are oppositely arranged, and two reflecting surfaces correspond to two transducer holes one by one.

[0010] Further, the side of the pipe section is provided with a branch pipe, the branch pipe is inclined to the side of the pipe section, and the first pressure sensor is screw connected to the end of the branch pipe.

[0011] Further, the side of the connecting head and the connecting end is provided with a side ear, the connecting head and the connecting end are oppositely arranged after being screw connected, and are connected through bolts.

[0012] Further, the inner wall of the enclosure is covered with a rubber sheath, the enclosure is sleeved on the top of the connecting section, the positioning protrusion is clamped in the positioning groove, the inner wall of the positioning groove is fixedly connected with a limiting post, the limiting post is inserted into the positioning protrusion, a positioning bolt is inserted into the middle of the enclosure, the positioning bolt penetrates through the front and rear side walls of the enclosure, the front and rear side walls of the positioning groove and the positioning protrusion and is screw connected with a positioning nut.

[0013] Further, the transducer hole one and the transducer hole two are oppositely arranged, the lower end of the ultrasonic transducer is inserted into the transducer hole one, the upper end of the ultrasonic transducer is inserted into the transducer hole two, and the upper and lower ends of the ultrasonic transducer are sleeved with rubber sealing rings.

[0014] Further, the side of the ultrasonic transducer and the lower surface of the positioning protrusion are provided with second pressure sensors, the pressure sensors on the connecting end are electrically connected with wires through terminal heads, the wires extend into the baffle and are electrically connected with a PCB board, the second pressure sensors on the side of the ultrasonic transducer are electrically connected with the PCB board, the second pressure sensors on the lower surface of the positioning protrusion are outwardly protruding and extend to the inner wall of the connecting section, and the second pressure sensors on the positioning protrusion are also electrically connected with the PCB board.

[0015] Further, the PCB board is a controller circuit board, the second pressure sensors, the ultrasonic transducer, the electronic watch dial, the battery box and the NB-IOT module are electrically connected with the PCB board, the battery box is loaded with a lithium battery, the ultrasonic transducer and the PCB board are connected through joint interface structures, the joints are fixed on the top of the ultrasonic transducer, and the interfaces are fixed in the inner wall of the transducer hole two.

[0016] Compared with the prior art, the application provides an NB remote ultrasonic water meter capable of intelligent monitoring, which has the following beneficial effects:

[0017] 1. The NB remote ultrasonic water meter capable of intelligent monitoring is combined and connected with the to-be-detected pipeline through the setting of the connecting end, and the casing is combined and connected with the pipe section, so that the combination connection of the ultrasonic water meter is realized, the ultrasonic water meter is convenient to disassemble, overhaul and replace, and adjustment is convenient according to the needs of the to-be-detected pipeline.

[0018] 2. The NB remote ultrasonic water meter capable of intelligent monitoring is provided with the connecting section in the pipe section to form a cavity structure for detection, when the detected fluid passes through the cavity structure, the fluid passing through the ultrasonic transducer is guided through the setting of the buffer slope, and the end part of the ultrasonic transducer probe into the connecting section is reduced, and a gap is set between the two ultrasonic transducers to form two groups of data, and a reflecting surface is set on the opposite side of the ultrasonic transducer to enhance the echo received by the ultrasonic transducer, so that the influence of the ultrasonic transducer is reduced under the premise of ensuring the accuracy of the data, and the durability of the ultrasonic transducer is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the NB remote ultrasonic water meter capable of intelligent monitoring.

[0020] Figure 2 It is a structure schematic view of the pipe section of the NB remote ultrasonic water meter capable of intelligent monitoring.

[0021] Figure 3 It is a pipe section sectional view of the NB remote ultrasonic water meter capable of intelligent monitoring.

[0022] Figure 4 It is a connecting section cross-sectional schematic view of the NB remote ultrasonic water meter capable of intelligent monitoring.

[0023] Figure 5 It is a structure schematic view of the pipe section of the NB remote ultrasonic water meter capable of intelligent monitoring.

[0024] Figure 6 It is a system block diagram of the NB remote ultrasonic water meter capable of intelligent monitoring.

[0025] Figure 7 It is an electronic watch display block schematic view of the NB remote ultrasonic water meter capable of intelligent monitoring.

[0026] In the figure: 1, pipe section; 101, branch pipe; 11, connecting section; 12, transducer hole one; 13, positioning groove; 1301, limiting pile; 14, buffer slope; 15, reflecting surface; 16, first pressure sensor; 17, connecting head; 18, connecting end; 19, flange; 110, second pressure sensor; 111, wiring end; 2, case; 21, supporting plate; 22, enclosure; 2201, positioning bolt; 2202, positioning nut; 23, positioning protrusion; 24, transducer hole two; 25, ultrasonic transducer; 26, baffle; 27, PCB board; 28, electronic watch dial; 29, battery box; 210, NB-IOT module; 211, wire. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] Please refer to Figures 1-7 The present application discloses a kind of NB remote ultrasonic water meter of intelligent monitoring can be carried out, including pipe section 1, the top of pipe section 1 is provided with case 2;

[0029] Connecting section 11 is arranged in the middle of pipe section 1, the top of connecting section 11 is provided with transducer hole one 12, the upper surface of connecting section 11 is provided with positioning groove 13, the inner side of connecting section 11 is provided with buffer slope 14, the inner wall of connecting section 11 is provided with reflecting surface 15, the side of pipe section 1 is screw-connected with first pressure sensor 16, the left and right ends of pipe section 1 are fixedly connected with connecting head 17, the side of connecting head 17 is screw-connected with connecting end 18, the side of connecting end 18 is fixedly connected with flange 19, second pressure sensor 110 is fixedly installed in the inner wall of connecting end 18, wiring end 111 is fixedly installed on the side of connecting end 18;

[0030] The bottom of case 2 is clamped with supporting plate 21, the bottom of supporting plate 21 is fixedly connected with enclosure 22, the bottom of supporting plate 21 is fixedly connected with positioning protrusion 23, the lower surface of supporting plate 21 is provided with transducer hole two 24, ultrasonic transducer 25 is inserted into the inside of transducer hole two 24, baffle 26 is arranged in the middle of case 2, PCB board 27 is arranged in the middle of baffle 26, electronic watch dial 28 is arranged above baffle 26, battery box 29 is arranged at the left end of case 2, NB-IOT module 210 is arranged at the right end of case 2, wire 211 is arranged at the lower end of supporting plate 21.

[0031] Specifically, the transducer hole one 12 is provided with two, the buffer slope 14 is arranged on the opposite side of the two transducer hole one 12, the buffer slope 14 is away from the transducer hole one 12 side is a gentle inclined surface, the buffer slope 14 is close to the transducer hole one 12 side is a semicircular arc.

[0032] In the embodiment, when the ultrasonic transducer 25 is installed in the transducer hole one 12, the end portion of the ultrasonic transducer 25 protrudes into the inside of the connecting section 11 from the transducer hole one 12, and the buffer slope 14 arranged on the side of the transducer hole one 12 forms a flow guide structure to slow down the impact of the fluid in the pipe section 1 on the end of the ultrasonic transducer 25. When the fluid passes through the pipe section 1 from any direction, two sets of data can be generated by the two ultrasonic transducers 25, and the two ultrasonic transducers 25 are separated by a certain distance to reduce the interference of the buffer slope 14 on the flow rate of the fluid.

[0033] Specifically, the reflection surface 15 is provided with two, two reflection surfaces 15 are oppositely arranged, and two reflection surfaces 15 correspond to two transducer hole one 12 respectively.

[0034] In the embodiment, the two reflection surfaces 15 reflect the ultrasonic waves emitted by the ultrasonic transducer 25, and the two reflection surfaces 15 are oppositely arranged with the two ultrasonic transducers 25 respectively, which facilitates the ultrasonic transducer 25 to receive ultrasonic signals.

[0035] Specifically, the side of the pipe section 1 is provided with a branch pipe 101, the branch pipe 101 is arranged obliquely on the side of the pipe section 1, and the first pressure sensor 16 is threadedly connected to the end of the branch pipe 101.

[0036] In the embodiment, the branch pipe 101 is arranged on the side of the pipe section 1 to form an inclined mounting site structure, and the first pressure sensor 16 is threadedly connected to the outside of the branch pipe 101, which facilitates disassembly and assembly and facilitates maintenance of the ultrasonic water meter.

[0037] Specifically, the side of the connecting head 17 and the connecting end 18 is provided with a side ear, and the side ears of the connecting head 17 and the connecting end 18 are oppositely arranged and connected by bolts after the connecting head 17 and the connecting end 18 are threadedly connected.

[0038] In the embodiment, the connecting end 18 combines and connects the pipe section 1 with the pipeline to be installed, the flange 19 for connecting with the pipeline is arranged on the connecting end 18, the flange 19 can be replaced by disassembling and replacing the connecting end 18, so that the ultrasonic water meter can adapt to the needs of various pipelines.

[0039] Specifically, the inner wall of the enclosure 22 is covered with a rubber sheath, the enclosure 22 is sleeved on the top of the connecting section 11, the positioning protrusion 23 is clamped in the positioning groove 13, the inner wall of the positioning groove 13 is fixedly connected with a limiting post 1301, the limiting post 1301 is inserted into the positioning protrusion 23, and the middle part of the enclosure 22 is inserted with a positioning bolt 2201 which penetrates through the front and rear side walls of the enclosure 22, the front and rear side walls of the positioning groove 13 and the positioning protrusion 23 and is threadedly connected with a positioning nut 2202.

[0040] In the embodiment, when the enclosure 22 is sleeved on the upper end of the connecting section 11, the rubber sheath fills the gap between the connecting section 11 and the enclosure 22, thereby improving the sealing performance of the connection between the connecting section 11 and the enclosure 22. The clamping of the positioning protrusion 23 in the positioning groove 13 and the clamping of the limiting post 1301 in the positioning protrusion 23 both strengthen the positioning of the connection between the enclosure 22 and the connecting section 11. After the enclosure 22 is connected with the connecting section 11, the positioning bolt 2201 is inserted to complete the combined positioning of the pipe section 1 and the case 2.

[0041] Specifically, the transducer hole one 12 and the transducer hole two 24 are oppositely arranged, the lower end of the ultrasonic transducer 25 is inserted into the transducer hole one 12, the upper end of the ultrasonic transducer 25 is inserted into the transducer hole two 24, and the upper and lower ends of the ultrasonic transducer 25 are both sleeved with rubber sealing rings.

[0042] In the embodiment, the upper and lower ends of the ultrasonic transducer 25 are respectively inserted into the transducer hole one 12 and the transducer hole two 24, so that a clamping structure for the ultrasonic transducer 25 is formed by the inner walls of the transducer hole one 12 and the transducer hole two 24, and the rubber sealing rings fill the gap between the ultrasonic transducer 25 and the inner walls of the transducer hole one 12 and the transducer hole two 24.

[0043] Specifically, the side surface of the ultrasonic transducer 25 and the lower surface of the positioning protrusion 23 are both provided with second pressure sensors 110, the pressure sensor on the connecting end 18 is electrically connected with a wire 211 through a terminal 111, the wire 211 extends into the baffle 26 and is electrically connected with a PCB 27, the second pressure sensors 110 on the side surface of the ultrasonic transducer 25 are electrically connected with the PCB 27, the second pressure sensors 110 on the lower surface of the positioning protrusion 23 are outwardly protruding and extend to the inner wall of the connecting section 11, and the second pressure sensors 110 on the positioning protrusion 23 are also electrically connected with the PCB 27.

[0044] In the embodiment, after the ultrasonic water meter is assembled, the fluid pipe, the connecting end 18 and the connecting section 11 form a multi-section structure, and when leakage occurs at the flange 19, i.e. between the fluid pipe and the connecting end 18, the reading of the second pressure sensor 110 on the corresponding connecting end 18 is different from the pressure in the fluid pipe, and when leakage occurs at the connection between the connecting end 18 and the connecting head 17, i.e. between the connecting end 18 and the pipe section 1, the reading of the second pressure sensor 110 on the connecting end 18 is different from the reading of the second pressure sensor 110 on the positioning protrusion 23, and after the case 2 is connected with the connecting section 11, the ultrasonic transducer 25 is inserted into the transducer hole one 12, and if the rubber sealing ring between the ultrasonic transducer 25 and the transducer hole one 12 is worn, leakage occurs in the transducer hole one 12, and at this time, the reading of the second pressure sensor 110 on the side of the ultrasonic transducer 25 changes, and the reading of the second pressure sensor 110 is monitored by the PCB board 27 to realize monitoring of the sealing performance of the combined connection of the ultrasonic water meter.

[0045] Specifically, the PCB board 27 is a controller circuit board, the second pressure sensor 110, the ultrasonic transducer 25, the electronic watch dial 28, the battery box 29 and the NB-IOT module 210 are electrically connected with the PCB board 27, the battery box 29 is loaded with a lithium battery, the ultrasonic transducer 25 is connected with the PCB board 27 through a joint interface structure, the joints are fixed on the top of the ultrasonic transducer 25, and the interface is fixed on the inner wall of the transducer hole two 24.

[0046] In the embodiment, the second pressure sensor 110 monitors the pressure condition in the ultrasonic water meter, the monitoring data of the second pressure sensor 110 is displayed by the electronic watch dial 28 after being processed by the PCB board 27, the ultrasonic transducer 25 monitors the fluid in the connecting section 11, and the monitoring data is also displayed by the electronic watch dial 28 after being processed by the PCB board 27, and the battery box 29 supplies power to the second pressure sensor 110, the ultrasonic transducer 25, the PCB board 27, the electronic watch dial 28 and the NB-IOT module 210 through the lithium battery loaded therein.

[0047] As shown in the figure: Figure 7 A, power display (displaying the remaining power of the lithium battery in the battery box 29); B, main display area (displaying the reading of the ultrasonic transducer 25); C, auxiliary display area (displaying the reading of each second pressure sensor 110).

[0048] In use, the assembly process: after the case 2 is inverted, the two ultrasonic transducers 25 are respectively inserted into the two transducer holes two 24, and the ultrasonic transducers 25 are connected with the joint interfaces on the transducer holes two 24, the pipe section 1 is inverted and close to the pipe section 1, the surrounding shell 22 is nested on the top of the connecting section 11, and the positioning protrusion 23 is inserted into the positioning groove 13, and the limiting pile 1301 is inserted into the positioning protrusion 23, and during the connecting process, the positioning bolt 2201 is inserted from the side of the surrounding shell 22 and is screwed with the positioning nut 2202 to complete the fixing, the connecting end 18 is screwed on the side of the connecting head 17 and is fixed by the bolt, the first pressure sensor 16 is screwed on the end of the branch pipe 101, and the wire 211 is connected with the corresponding side of the wire end 111, the combination of the ultrasonic water meter is completed, and the combined ultrasonic water meter is connected in the pipeline to be detected through the flange 19 on the connecting end 18, and the lithium battery is loaded into the battery box 29.

[0049] The working process: the fluid in the pipeline flows into the pipe section 1 through the connecting end 18 and flows out through the other connecting end 18, the battery box 29 supplies power to the ultrasonic transducers 25, the PCB board 27, the electronic watch dial 28 and the NB-IOT module 210, the ultrasonic transducers 25 emit test sound waves into the pipe section 1, the sound waves hit the reflecting surface 15 and are reflected back to the ultrasonic transducers 25 to form test data, the data is processed by the PCB board 27 and then displayed by the electronic watch dial 28 and uploaded to the network by the NB-IOT module 210, in the process that the fluid continuously passes through the ultrasonic water meter, the second pressure sensor 110 continuously detects the pressure in the connecting end 18, the connecting section 11 and the transducer hole one 12, and judges whether the combined ultrasonic water meter leaks or not according to the change of the reading detected by the second pressure sensor 110, and the first pressure sensor 16 continuously detects the pressure in the pipe section 1 at the branch pipe 101, the first pressure sensor 16 is connected outside the case 2 independently, and the readings of the second pressure sensor 110 and the first pressure sensor 16 are mutually referenced to monitor the working state of the ultrasonic water meter.

[0050] In summary, the NB remote ultrasonic water meter capable of intelligent monitoring is combined and connected with the pipeline to be detected through the connecting end 18, and the case 2 and the pipe section 1 are combined and connected through the surrounding shell 22, the combination and connection of the ultrasonic water meter are realized, the second pressure sensor 110 is arranged at the connecting end 18, the positioning protrusion 23 and the ultrasonic transducer 25, the pressure changes in each region of the ultrasonic water meter are mastered by monitoring the change of the reading of the second pressure sensor 110, and thus the sealing of the assembled part is detected, a certain basis is provided for the repair of the ultrasonic water meter, the ultrasonic water meter is convenient to disassemble and repair, and it is convenient to replace and adjust according to the needs of the pipeline to be detected;

[0051] By setting the connecting section 11 in the pipe section 1, a cavity structure for detection is formed, when the fluid to be detected passes through the cavity structure, by setting the buffer slope 14, the fluid passing through the ultrasonic transducer 25 is guided, and then the erosion of the fluid to the end part of the probe of the ultrasonic transducer 25 in the connecting section 11 is reduced, at the same time, a gap is set between the two ultrasonic transducers 25, forming two groups of data, and a reflecting surface 15 is set on the opposite side of the ultrasonic transducer 25, enhancing the echo received by the ultrasonic transducer 25, realizing the premise of ensuring the accuracy of the data, reducing the influence of the erosion of the ultrasonic transducer 25, thereby improving the durability of the ultrasonic transducer 25.

[0052] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. An NB remote ultrasonic water meter capable of intelligent monitoring, comprising a pipe section (1), characterized in that: An organic box (2) is installed above the pipe section (1); A connecting section (11) is provided in the middle of the pipe section (1). A transducer hole (12) is provided on the upper part of the connecting section (11). A positioning groove (13) is provided on the upper surface of the connecting section (11). A buffer slope (14) is provided on the inner side of the connecting section (11). A reflective surface (15) is provided on the inner wall of the connecting section (11). A first pressure sensor (16) is threadedly connected to the side of the pipe section (1). A connector (17) is fixedly connected to the left and right ends of the pipe section (1). A connecting end (18) is threadedly connected to the side of the connector (17). A flange (19) is fixedly connected to the side of the connecting end (18). A second pressure sensor (110) is fixedly installed on the inner wall of the connecting end (18). A wiring terminal (111) is fixedly installed on the side of the connecting end (18). The bottom of the chassis (2) is fitted with a tray (21), the bottom of the tray (21) is fixedly connected with a casing (22), the bottom of the tray (21) is fixedly connected with a positioning protrusion (23), the lower surface of the tray (21) is provided with a transducer hole two (24), an ultrasonic transducer (25) is inserted into the transducer hole two (24), a baffle (26) is provided in the middle of the chassis (2), a PCB board (27) is provided in the middle of the baffle (26), an electronic dial (28) is provided above the baffle (26), a battery box (29) is provided at the left end of the chassis (2), an NB-IOT module (210) is provided at the right end of the chassis (2), and a wire (211) is provided at the lower end of the tray (21).

2. The NB remote ultrasonic water meter capable of intelligent monitoring according to claim 1, characterized in that: Two transducer holes (12) are provided, and the buffer slope (14) is provided on the opposite side of the two transducer holes (12). The side of the buffer slope (14) away from the transducer hole (12) is a gently sloping surface, and the side of the buffer slope (14) close to the transducer hole (12) is semi-circular.

3. The NB remote ultrasonic water meter capable of intelligent monitoring according to claim 1, characterized in that: There are two reflective surfaces (15), which are arranged opposite to each other, and each of the two reflective surfaces (15) corresponds to one of the two transducer holes (12).

4. The NB remote ultrasonic water meter capable of intelligent monitoring according to claim 1, characterized in that: A branch pipe (101) is provided on the side of the pipe section (1). The branch pipe (101) is inclined on the side of the pipe section (1). The first pressure sensor (16) is threadedly connected to the end of the branch pipe (101).

5. The NB remote ultrasonic water meter capable of intelligent monitoring according to claim 1, characterized in that: Both the connector (17) and the connecting end (18) are provided with side ears. After the connector (17) and the connecting end (18) are threaded together, the side ears are arranged opposite each other and connected by bolts.

6. The NB remote ultrasonic water meter capable of intelligent monitoring according to claim 1, characterized in that: The inner wall of the enclosure (22) is covered with a rubber sleeve. The enclosure (22) is fitted onto the top of the connecting section (11). The positioning protrusion (23) is snapped into the positioning groove (13). The inner wall of the positioning groove (13) is fixedly connected to a limit stake (1301). The limit stake (1301) is inserted into the positioning protrusion (23). A positioning bolt (2201) is inserted into the middle of the enclosure (22). The positioning bolt (2201) passes through the front and rear side walls of the enclosure (22), the front and rear side walls of the positioning groove (13), and the positioning protrusion (23) and is threaded with a positioning nut (2202).

7. The NB remote ultrasonic water meter capable of intelligent monitoring according to claim 1, characterized in that: The transducer hole one (12) and the transducer hole two (24) are arranged opposite to each other. The lower end of the ultrasonic transducer (25) is inserted into the transducer hole one (12), and the upper end of the ultrasonic transducer (25) is inserted into the transducer hole two (24). Both the upper and lower ends of the ultrasonic transducer (25) are fitted with rubber sealing rings.

8. The NB remote ultrasonic water meter capable of intelligent monitoring according to claim 1, characterized in that: The ultrasonic transducer (25) and the lower surface of the positioning protrusion (23) are both provided with a second pressure sensor (110). The pressure sensor on the connecting end (18) is electrically connected to the wire (211) through the wiring terminal (111). The wire (211) extends into the baffle (26) and is electrically connected to the PCB board (27). The second pressure sensor (110) on the side of the ultrasonic transducer (25) is electrically connected to the PCB board (27). The second pressure sensor (110) on the lower surface of the positioning protrusion (23) is protruding outward and extends to the inner wall of the connecting section (11). The second pressure sensor (110) on the positioning protrusion (23) is also electrically connected to the PCB board (27).

9. The NB remote ultrasonic water meter capable of intelligent monitoring according to claim 1, characterized in that: The PCB board (27) is a controller circuit board. The second pressure sensor (110), ultrasonic transducer (25), electronic dial (28), battery box (29) and NB-IOT module (210) are all electrically connected to the PCB board (27). The battery box (29) contains a lithium battery. The ultrasonic transducer (25) is connected to the PCB board (27) through a connector interface structure. The connectors are fixed on the top of the ultrasonic transducer (25) and the interface is fixed in the inner wall of the transducer hole two (24).

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