Microcontroller-based ultrasonic water meter

Abstract

The utility model discloses an ultrasonic water meter based on microcontroller belongs to flow measurement technical field, and it aims at solving the problem of the existing ultrasonic water meter installation need to rotate the body, inconvenient operation in narrow space, poor pipeline spacing adaptation. Its technical scheme main points: including the watch case, the watch cover pivotally connected in the watch case top, the communicating pipe of outer wall fixed watch case, the installation cover and bottom circuit board in watch case, two side end stretch into the sensor of communicating pipe, and the connecting piece, the connecting piece contains the adjusting pipe of threaded cover and the connecting pipe, and the connecting pipe outer ring is sealed with the adjusting pipe inner ring cooperation rubber ring, and the adjusting pipe outer wall screw ring extrusion is fixed with the clamping section of interval hole, and the watch case assembly frame is assembled battery and receives wire harness, and the assembly frame lower recess is limited circuit board with the recess on the installation cover, the utility model does not need to rotate water meter and can install, and the pipeline spacing in the adaptation range, mainly used for the flow measurement of resident and industrial fluid.

Description

Technical Field

[0001] This utility model relates to the field of flow metering technology, and in particular to an ultrasonic water meter based on a microcontroller. Background Technology

[0002] Ultrasonic water meters are high-precision flow measurement devices with no moving mechanical parts. They have a wide measurement range and good stability, and are often used in residential water use and industrial fluid measurement. In practical use, small pipes and pipes in residential environments often use threaded connections. When installing ultrasonic water meters, it is often necessary to rotate the entire water meter to align it with the pipe interface. However, in some places with narrow installation space, such as wall gaps, dense pipe areas, or inside the meter box, rotating the water meter is very inconvenient, resulting in low installation efficiency. In addition, the display surface may not be in the front position. Furthermore, due to construction reasons, there may be inconsistent spacing between external pipes. The existing ultrasonic water meter connectors have fixed lengths, making it difficult to adapt to pipes with different spacings. Often, additional transition fittings are required.

[0003] Therefore, an ultrasonic water meter that is easy to install and highly adaptable is designed to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing ultrasonic water meters, such as the need to rotate the body during installation, inconvenience in operation in narrow spaces, and poor compatibility with pipe spacing. This invention proposes a microcontroller-based ultrasonic water meter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A microcontroller-based ultrasonic water meter, including a casing; Rotate the watch cover attached to the top of the watch case; The connecting pipe for fixing the watch case to the outer wall; The mounting cover installed inside the watch case and the circuit board located at the bottom of the mounting cover; Two sensors are located on opposite sides inside the watch case, with their ends extending into a connecting tube; And connectors that connect the connecting pipe to the external pipe.

[0006] In one possible design, the connector includes two adjusting pipes threaded onto both sides of the outer wall of the connecting pipe and two connecting pipes with one end extending into the adjusting pipes. The other end of the connecting pipes is threaded to an external pipe, enabling relative movement between the adjusting pipes and the connecting pipes to accommodate pipes with different spacing.

[0007] In one possible design, the connecting pipe has an integrally formed outer ring on the outer wall inside the regulating pipe, and an integrally formed inner ring on the inner wall of the regulating pipe. A rubber ring is provided at the fit between the outer ring and the inner ring, and a seal is achieved by squeezing the rubber ring between the outer ring and the inner ring.

[0008] In one possible design, a screw ring threaded onto the outer wall of the regulating pipe is also included. The regulating pipe has an integrally formed clamping section on the side near the connecting pipe. The outer wall of the clamping section has multiple annularly spaced holes. The inner wall of the clamping section is inclined from the regulating pipe to the connecting pipe and is thicker on the side near the connecting pipe. The screw ring squeezes the clamping section to deform in order to fix the regulating pipe.

[0009] In one possible design, mounting racks are provided on both sides inside the case, one mounting rack housing the battery and the other mounting rack for collecting the circuit board, sensor, and wiring harness connected to the battery.

[0010] In one possible design, the top of the mounting bracket has a lower recess, the bottom of the mounting cover has an upper recess, and the circuit board is confined within the interlayer between the lower and upper recesses to achieve circuit board positioning.

[0011] In this application, during actual use, the connecting pipe is moved outward until it aligns with the corresponding pipe and then screwed on to connect it to the pipe via a thread. The screwing ring is then rotated to disengage it from the clamping section, and the regulating pipe is rotated in the same direction as the connecting pipe and the external pipe, moving towards the water meter until it is sealed against the inner ring. The screwing ring is then rotated in the opposite direction, again in the same direction as the regulating pipe, gradually rotating to the outer wall of the clamping section. As the thickness of the clamping section gradually increases on the side furthest from the regulating pipe, rotating the screwing ring gradually compresses the clamping section, causing it to deform through the spacer hole. This clamping section then holds the outer wall of the connecting pipe, thus fixing the regulating pipe in place. Using this method, the connecting pipe on the other side can be connected to the corresponding pipe without rotating the water meter itself, avoiding the inconvenience of rotation due to limited space, and adapting to a certain range of spacing between the two pipes.

[0012] In this invention, the ultrasonic water meter based on a microcontroller can be moved relative to the adjusting pipe and the connecting pipe, which can adapt to the spacing deviation between the external pipes on both sides without the need for additional transition pipe fittings, thereby increasing its adaptability. In this invention, the ultrasonic water meter based on a microcontroller achieves sealing through a rubber ring that fits between the outer and inner rings, while a screw ring is used to squeeze and clamp the section to form a stable fixation, ensuring the sealing reliability and structural stability of the connecting parts. In this invention, during use, the adjustment pipe and the connecting pipe work together to allow the water meter body to be connected to the external pipe without rotating during installation, thus solving the problem of inconvenient installation in narrow spaces, such as inside the meter box, and ensuring that the panel faces the designated direction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the ultrasonic water meter based on a microcontroller proposed in this utility model; Figure 2 This is an exploded top view of the ultrasonic water meter based on a microcontroller proposed in this utility model. Figure 3 This is a schematic diagram of the exploded, bottom-view structure of the ultrasonic water meter based on a microcontroller proposed in this utility model. Figure 4 This is an exploded structural diagram of the ultrasonic water meter connector based on a microcontroller proposed in this utility model. Figure 5 This is a three-dimensional structural diagram of the ultrasonic water meter regulating tube based on a microcontroller proposed in this utility model.

[0014] In the diagram: 1. Case; 2. Cover; 3. Connecting pipe; 4. Mounting cover; 5. Circuit board; 6. Battery; 7. Lower slot; 8. Sensor; 9. Assembly bracket; 10. Twisting ring; 11. Adjusting pipe; 12. Connecting pipe; 13. Upper slot; 14. Spacing hole; 15. Clamping section; 16. Inner ring; 17. Outer ring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] In one embodiment: an ultrasonic water meter that does not require the water meter body to be rotated for installation, thereby avoiding the inconvenience of installation caused by limited space and the problem that the water meter surface is difficult to face directly forward, including: a meter housing 1, a meter cover 2, a connecting pipe 3, a mounting cover 4, a circuit board 5, a sensor 8, and connectors.

[0017] refer to Figure 1-2 The housing 1 is fixedly installed on the outer wall of the connecting pipe 3. The cover 2 is rotatably connected to the top of the housing 1. The housing 1 is equipped with a mounting cover 4. The circuit board 5 is installed at the bottom of the mounting cover 4 and is used to integrate control components such as microcontrollers. Two sensors 8 are located on both sides inside the housing 1, and their ends extend into the interior of the connecting pipe 3. They are used to transmit and receive ultrasonic signals. The sensor model is JYCS and is based on the ultrasonic time difference principle for flow measurement. The connector is used to connect the connecting pipe 3 to the external pipe to ensure stable water flow.

[0018] refer to Figure 4-5 The connector includes two regulating pipes 11 and two connecting pipes 12. The two regulating pipes 11 are threaded onto both sides of the outer wall of the connecting pipe 3. One end of each connecting pipe 12 is located inside the two regulating pipes 11, and the other end of the connecting pipe 12 is threaded to an external pipe. The outer wall of the connecting pipe 12 inside the regulating pipe 11 is provided with an integrally formed outer ring 17, and the inner wall of the regulating pipe 11 is provided with an integrally formed inner ring 16. The outer ring 17 and the inner ring 16 are fitted together, and a rubber ring is provided at the fitting point. The rubber ring is fitted onto the outer wall of the connecting pipe 12 and is located between the outer ring 17 and the inner ring 16. By fitting and squeezing the rubber ring with the outer ring 17 and the inner ring 16, a seal can be achieved between the regulating pipe 11 and the connecting pipe 12 to prevent water leakage.

[0019] The water meter also includes a screw ring 10 threaded onto the outer wall of the regulating pipe 11. An integrally formed clamping section 15 is provided on the side of the regulating pipe 11 near the connecting pipe 3. The outer wall of the clamping section 15 has multiple spaced holes 14 arranged in a ring at equal intervals. The inner wall of the clamping section 15 is inclined from one side of the regulating pipe 11 to the other side of the connecting pipe 3, and the side near the connecting pipe 3 is thicker. The spaced holes 14 give the clamping section 15 a certain deformation capability. The clamping section 15 can be deformed by the axial movement of the screw ring 10.

[0020] Both sides inside the casing 1 are provided with mounting racks 9. One mounting rack 9 is equipped with a battery 6 to provide power to the circuit board 5 and sensor 8. The other mounting rack is used to collect the wiring harness connecting the circuit board 5, sensor 8 and battery 6.

[0021] In practical use, first move the connecting pipe 12 outward until its end aligns with the external pipe to be connected. Then, screw the connecting pipe 12 to connect it to the external pipe. After connecting the connecting pipe 12 and the external pipe, rotate the screw ring 10 to move it along the outer wall of the regulating pipe 11 and out of the clamping section 15. Next, rotate the regulating pipe 11 in the same direction as the connecting pipe 12 and the external pipe. The regulating pipe 11 will move towards the water meter until the outer ring 17 of the connecting pipe 12 and the inner ring 16 of the regulating pipe 11 are in contact. At this point, the rubber ring is squeezed to form a seal, stopping the rotation and movement of the regulating pipe 11. Then, rotate the screw ring 10 in the opposite direction. The rotation direction remains the same as that of the regulating pipe 11, gradually rotating it to the outer wall of the clamping section 15. As the thickness of the clamping section 15 gradually increases on the side away from the regulating pipe 11, the screwing ring 10 will gradually squeeze the clamping section 15 during the movement, causing the clamping section 15 to shrink and deform through the spacer hole 14, thereby clamping the outer wall of the connecting pipe 3 and fixing the regulating pipe 11 to the connecting pipe 3. Following the same method, the connection between the other side connecting pipe 12 and the external pipe is completed, thus realizing the overall installation of the water meter. This installation process does not require rotating the water meter itself, effectively avoiding the problem of inconvenient rotation when space is limited. At the same time, the relative movement of the regulating pipe 11 and the connecting pipe 12 can adapt to the spacing deviation between the two pipes within a certain range.

[0022] The detection principle of this application is based on time-of-flight ultrasonic flow measurement technology. The microcontroller on the circuit board 5 sends a drive signal to one of the sensors 8, which emits an ultrasonic signal. After the ultrasonic signal passes through the water flow in the connecting pipe 3, it is received by the sensor 8 on the other side. The microcontroller records the propagation time of the ultrasonic signal in the direction of water flow. Subsequently, the microcontroller controls the sensor 8 on the other side to emit an ultrasonic signal. This signal propagates in the direction of water flow and is received by the sensor 8 on the opposite side. The propagation time in the direction of water flow is recorded. The microcontroller calculates the water flow velocity based on parameters such as the inner diameter of the connecting pipe 3 and the installation angle of the sensor 8. Finally, it calculates the instantaneous flow rate based on the water flow velocity and the cross-sectional area of ​​the connecting pipe 3, and integrates the instantaneous flow rate to obtain the cumulative flow rate, thus completing the flow detection and measurement.

[0023] This application can be used in the field of flow measurement, or in other fields applicable to this application.

[0024] In another embodiment: Reference Figure 2-3 The ultrasonic water meter based on the microcontroller is applied to the field of flow measurement. The structure of this embodiment is basically the same as that of the previous embodiment. The difference is that the top of the mounting frame 9 is provided with a lower groove 7, the bottom of the mounting cover 4 is provided with an upper groove 13, and the circuit board 5 is limited in the interlayer between the lower groove 7 and the upper groove 13. The positioning and installation of the circuit board 5 are achieved by the cooperation of the upper and lower grooves 7.

[0025] However, as is well known to those skilled in the art, the working principles and wiring methods of circuit boards and sensors are conventional methods or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0026] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A microcontroller-based ultrasonic water meter, characterized in that, include: Case (1); Rotate the watch cover (2) connected to the top of the watch case (1); The connecting pipe (3) of the outer wall fixed assembly of the watch case (1); Mounting cover (4) installed inside the case (1) and circuit board (5) located at the bottom of mounting cover (4); Two sensors (8) are located on both sides inside the casing (1) and their ends extend into the connecting pipe (3); And the connecting parts that connect the connecting pipe (3) to the external pipe.

2. The ultrasonic water meter based on a microcontroller according to claim 1, characterized in that, The connector includes two adjusting pipes (11) threaded on both sides of the outer wall of the connecting pipe (3) and two connecting pipes (12) with one end extending into the adjusting pipe (11). The other end of the connecting pipe (12) is threaded to the external pipe, so as to realize the relative movement of the adjusting pipe (11) and the connecting pipe (12) to adapt to pipes with different spacing.

3. The ultrasonic water meter based on a microcontroller according to claim 2, characterized in that, The connecting pipe (12) has an integrally formed outer ring (17) on its outer wall inside the regulating pipe (11), and an integrally formed inner ring (16) on its inner wall. The outer ring (17) and the inner ring (16) fit together and are fitted with a rubber ring. The sealing is achieved by the outer ring (17) and the inner ring (16) squeezing the rubber ring.

4. The ultrasonic water meter based on a microcontroller according to claim 3, characterized in that, It also includes a screw ring (10) threaded onto the outer wall of the regulating tube (11). The regulating tube (11) has an integrally formed clamping section (15) on the side near the connecting tube (3). The outer wall of the clamping section (15) has multiple annularly spaced interval holes (14). The inner wall of the clamping section (15) is inclined from the regulating tube (11) to the connecting tube (3) and is thick on the side near the connecting tube (3). The screw ring (10) squeezes the clamping section (15) to deform in order to fix the regulating tube (11).

5. The ultrasonic water meter based on a microcontroller according to claim 4, characterized in that, The casing (1) has mounting racks (9) on both sides inside. One mounting rack (9) contains a battery (6), and the other mounting rack (9) is used to collect the wiring harness connecting the circuit board (5), the sensor (8), and the battery (6).

6. The ultrasonic water meter based on a microcontroller according to claim 5, characterized in that, The top of the mounting frame (9) is provided with a lower groove (7), and the bottom of the mounting cover (4) is provided with an upper groove (13). The circuit board (5) is located in the interlayer between the lower groove (7) and the upper groove (13) to achieve the positioning of the circuit board (5).

Images