Meter body structure of ultrasonic water meter

Abstract

The utility model relates to a meter body structure of an ultrasonic water meter. Comprising a measuring pipeline with end flanges at the two ends, a first side wall base and a second side wall base are arranged on the two sides of the measuring pipeline, the center faces of the two side wall bases are coplanar, an included angle is formed between the center faces and the center line of the measuring pipeline, a top base is arranged in the middle of the top of the measuring pipeline, and a controller with a screen is installed on the top base; a first slot is formed in the first side wall base, a first transducer seat is mounted in the first slot, a first group of transducers are mounted on the first transducer seat, a second slot is formed in the second side wall base, a second transducer seat is mounted in the second slot, and a second group of transducers are mounted on the second transducer seat; a first wiring groove is formed in the first transducer base, a second wiring groove is formed in the second transducer base, and threading holes are formed in the top of the first side wall base and the top of the second side wall base. According to the utility model, the accuracy of flow measurement is improved by improving the precision of the mounting position of the transducer, and the convenience of internal wiring is improved by arranging a wiring structure inside.

Description

Technical Field

[0001] This utility model belongs to the field of ultrasonic water meter technology, and particularly relates to the meter body structure of an ultrasonic water meter. Background Technology

[0002] An ultrasonic water meter is a type of water meter that calculates the water flow rate by analyzing the time difference caused by the change in water velocity as an ultrasonic beam propagates upstream and downstream. The working principle of an ultrasonic water meter is as follows: It calculates the water flow rate by detecting the time difference caused by the change in water velocity as an ultrasonic beam propagates upstream and downstream. The calculation formula is: Where θ is the angle between the ultrasonic beam and the water flow direction, M is the number of times the ultrasonic beam propagates in the water flow, D is the pipe diameter, and T... up T is the propagation time of the ultrasonic beam in the positive direction. town Let ΔT be the propagation time of the ultrasonic beam in the reverse direction. up -T down The flow rate can be obtained by multiplying the measured flow velocity by the cross-sectional area of ​​the pipe. Therefore, ultrasonic water meters usually need to be equipped with transducers for transmitting and receiving ultrasonic beams.

[0003] Existing ultrasonic water meters typically mount their transducers directly within a transducer holder located on the measuring pipe. This design has several drawbacks: First, the transducer transmits and receives ultrasonic beams, so the accuracy of its installation position directly affects the accuracy of flow measurement. Second, the transducer is an active component, requiring a wiring harness to connect to the water meter's controller; existing ultrasonic water meters, due to their structural design, do not facilitate internal wiring. Therefore, a structural design for ultrasonic water meters is needed to address these technical issues. Utility Model Content

[0004] The purpose of this invention is to provide a meter body structure for an ultrasonic water meter, which improves the accuracy of flow measurement by enhancing the installation position accuracy of the transducer, and improves the convenience of internal wiring by setting an internal wiring structure.

[0005] The technical solution adopted by this utility model is as follows: An ultrasonic water meter body structure includes a measuring pipe with end flanges at both ends. A first sidewall base and a second sidewall base are provided on both sides of the measuring pipe. The center planes of the first and second sidewall bases are coplanar and form an angle with the centerline of the measuring pipe. A top base is provided at the top center of the measuring pipe, and a controller with a screen is installed on the top base. A first slot is provided inside the first sidewall base, and a first transducer seat is installed in the first slot. A first set of transducers is installed on the first transducer seat. A second slot is provided inside the second sidewall base, and a second transducer seat is installed in the second slot. A second set of transducers is installed on the second transducer seat. The first set of transducers and the second set of transducers are horizontally aligned. A first wiring groove is provided on the first transducer seat, and a second wiring groove is provided on the second transducer seat. A wire-passing hole is provided inside the top of the first and second sidewall bases. The transducer wires are located in the wiring grooves and pass through the wire-passing hole into the interior of the top base and are connected to the controller with a screen.

[0006] Preferably, the first slot and the second slot have the same longitudinal cross-sectional shape, both including an inner trapezoidal portion and an outer rectangular portion. The first transducer base and the second transducer base have the same structure, both including an inner trapezoidal portion, a middle rectangular portion, and an outer rectangular portion. The transducer base is inserted into the corresponding slot, and the edge of the outer rectangular portion of the transducer base overlaps with the side wall base and is fixedly connected by screws.

[0007] Preferably, the first wiring groove is milled on the inner wall of the first transducer seat and extends in the longitudinal direction; the second wiring groove is milled on the inner wall of the second transducer seat and extends in the longitudinal direction; and the wire hole is drilled at an angle.

[0008] Preferably, a sealing gasket is provided between the edge of the outer rectangular portion of the transducer base and the outer surface of the sidewall base.

[0009] Preferably, the first sidewall base, the second sidewall base, the top base, the end flange, and the measuring pipe are integrally cast, and the angle between the center plane of the first sidewall base and the second sidewall base and the center line of the measuring pipe is 45°.

[0010] Preferably, flow guiding components are also installed at both ends of the measuring pipe. The flow guiding components include an annular base, and multiple flow guiding plates that are circumferentially spaced at equal angles and extend in the radial direction are installed on the inner wall of the annular base.

[0011] Preferably, the bottom of the screen controller has a protrusion and is embedded inside the top base. The screen controller is fixedly connected to the top base with screws, and an openable cover is also hinged on the screen controller.

[0012] The advantages and positive effects of this utility model are:

[0013] This invention provides a meter body structure for an ultrasonic water meter. Compared with existing ultrasonic water meters, the meter body structure of this invention has a first side wall base and a second side wall base on both sides of the measuring pipe, and slots are provided inside the side wall bases. The transducer holder, on which the transducer is installed, is inserted into the slot of the corresponding side wall base, and the shape of the transducer holder is the same as the shape of the slot. This can improve the installation position accuracy of the transducer and improve the accuracy of flow measurement.

[0014] On the other hand, the meter body structure has a wiring groove on the inner wall of the transducer base for transducer wiring harness routing, and a through hole aligned with the wiring groove is provided inside the top of the side wall base. Therefore, the transducer wiring harness can enter the top base along the wiring groove and through hole in a more reasonable internal routing manner and connect to the screen controller. Thus, the meter body structure improves the convenience of internal routing by setting the internal wiring structure (wiring groove and through hole). Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure at position AA.

[0018] In the picture:

[0019] 1. Measuring pipe; 2. End flange; 3. Annular base; 4. Guide plate; 5. First side wall base; 6. First transducer base; 7. Second side wall base; 8. Second transducer base; 9. Top base; 10. Controller with screen; 11. Cover; 12. First group of transducers; 13. Second group of transducers; 14. First wiring trough; 15. Second wiring trough; 16. Wiring hole. Detailed Implementation

[0020] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0021] Please see Figure 1 , Figure 2 and Figure 3The ultrasonic water meter of this invention comprises a measuring pipe 1 with end flanges 2 at both ends. A first sidewall base 5 and a second sidewall base 7 are provided on both sides of the measuring pipe. The center planes of the first sidewall base 5 and the second sidewall base 7 are coplanar and form an angle with the centerline of the measuring pipe 1. A top base 9 is provided at the top center of the measuring pipe 1, and a controller 10 with a display screen is mounted on the top base 9. The controller 10 includes a housing with a display screen, and a control circuit board is provided inside the housing for providing flow measurement and control functions for the ultrasonic water meter.

[0022] The end flanges 2 at both ends are used for connecting the ultrasonic water meter to the water pipe. In this embodiment, flow guiding components are also installed at both ends of the measuring pipe 1. The flow guiding components include an annular base 3, on which multiple flow guiding plates 4 are installed at circumferentially equidistant angles and extending radially. As shown in the figure, the flow guiding components are located inside the end flanges 2. The annular base 3 and the end flanges 2 can be fixedly connected by radial screws. The flow guiding components can also be clamped and fixed when the ultrasonic water meter is connected to the water pipe.

[0023] In this embodiment, the first side wall base 5, the second side wall base 7, the top base 9, the end flange 2, and the measuring pipe 1 are integral castings, and the angle between the center plane of the first side wall base 5 and the second side wall base 7 and the center line of the measuring pipe 1 is 45°.

[0024] In this embodiment, the bottom of the screen controller 10 has a protrusion and is embedded inside the top base 9. The screen controller 10 is fixedly connected to the top base 9 with screws. An openable cover 11 is also hinged on the screen controller 10. When the cover 11 is closed, it protects the top display screen of the screen controller 10.

[0025] A first slot is provided inside the first sidewall base 5, and a first transducer seat 6 is installed in the first slot. A first set of transducers 12 is installed on the first transducer seat 6. A second slot is provided inside the second sidewall base 7, and a second transducer seat 8 is installed in the second slot. A second set of transducers 13 is installed on the second transducer seat 8. The first set of transducers 12 and the second set of transducers 13 are horizontally aligned. Specifically, the first set of transducers 12 includes two transducers, one for transmitting an ultrasonic beam and the other for receiving it. The second set of transducers 13 also includes two transducers, one for transmitting an ultrasonic beam and the other for receiving it. One ultrasonic beam is directed along the direction of water flow in the measuring pipe 1, and the other ultrasonic beam is directed against the direction of water flow in the measuring pipe 1.

[0026] The first slot and the second slot have the same longitudinal cross-sectional shape, both including an inner trapezoidal portion and an outer rectangular portion. The first transducer base 6 and the second transducer base 8 have the same structure, both including an inner trapezoidal portion, a middle rectangular portion and an outer rectangular portion. The transducer base is inserted into the corresponding slot, and the edge of the outer rectangular portion of the transducer base overlaps on the side wall base and is fixedly connected by screws.

[0027] like Figure 3 As shown, the main body of the first transducer holder 6 is exactly the same shape as the first slot, and the main body of the second transducer holder 8 is exactly the same shape as the second slot. Due to the fit between the trapezoidal parts of the two, the transducer holder is positioned when it is inserted into the slot. Therefore, the first set of transducers 12 and the second set of transducers 13 have high installation position accuracy, which improves the position accuracy of the upper and lower transducers of the first set of transducers 12 and the upper and lower transducers of the second set of transducers 13, and improves the accuracy of flow measurement.

[0028] The exposed portions of both the first transducer base 6 and the second transducer base 8 form the connection points with the first sidewall base 5 and the second sidewall base 7. A sealing gasket is provided between the edge of the outer rectangular portion of the transducer base (i.e., the aforementioned exposed portion) and the outer surface of the sidewall base. When the first transducer base 6 is fixedly connected to the first sidewall base 5 and the second transducer base 8 is fixedly connected to the second sidewall base 7 using screws, the sealing gasket plays a role in enhancing the seal between the transducer base and the sidewall base 5.

[0029] A first wiring groove 14 is provided on the first transducer base 6, and a second wiring groove 15 is provided on the second transducer base 8. A wire hole 16 is provided inside the top of the first side wall base 5 and the second side wall base 7. The transducer's wire harness is located in the wiring groove and passes through the wire hole 16 into the interior of the top base 9 and is connected to the screen controller 10. Therefore, the wiring groove and the wire hole 16 form an internal wiring structure, achieving a better internal wiring effect for the wire harness.

[0030] In this embodiment, the first wiring groove 14 is milled on the inner wall of the first transducer seat 6 and extends in the longitudinal direction; the second wiring groove 15 is milled on the inner wall of the second transducer seat 8 and extends in the longitudinal direction; and the wire hole 16 is drilled at an angle.

[0031] Assembly method of the surface structure:

[0032] Install the first set of transducers 12 into the mounting holes on the first transducer base 6, and place the wiring harness of the first set of transducers 12 into the adjacent first wiring groove 14. Install the second set of transducers 13 into the mounting holes on the second transducer base 8, and place the wiring harness of the second set of transducers 13 into the adjacent second wiring groove 15. Pass the left and right wiring harnesses upward through the wire hole 16 into the interior of the top base 9. Place the first transducer base 6 into the first slot and the second transducer base 8 into the second slot. Then, fix the first transducer base 6 to the first side wall base 5 with screws, and fix the second transducer base 8 to the second side wall base 7 with screws. Apply glue to the interior of the top base 9, then connect the wiring harness to the screen controller 10, and then install and fix the screen controller 10 onto the top base 9.

Claims

1. A meter body structure for an ultrasonic water meter, characterized in that: Including both ends A measuring pipe (1) with end flanges (2) has a first sidewall base (5) and a second sidewall base (7) on both sides. The center planes of the first sidewall base (5) and the second sidewall base (7) are coplanar and form an angle with the center line of the measuring pipe (1). A top base (9) is provided at the top center of the measuring pipe (1), and a controller (10) with a screen is installed on the top base (9). A first slot is provided inside the first sidewall base (5), and a first transducer seat (6) is installed in the first slot. A first set of transducers (12) is installed on the first transducer seat (6). The interior of the base (7) is provided with a second slot and a second transducer base (8) is installed in the second slot. A second set of transducers (13) is installed on the second transducer base (8). The first set of transducers (12) and the second set of transducers (13) are horizontally opposite each other. A first wiring groove (14) is provided on the first transducer base (6) and a second wiring groove (15) is provided on the second transducer base (8). A wire hole (16) is provided inside the top of the first side wall base (5) and the second side wall base (7). The wire harness of the transducer is located in the wiring groove and passes through the wire hole (16) into the interior of the top base (9) and is connected to the screen controller (10).

2. The structure of the ultrasonic water meter as described in claim 1, characterized in that: The first slot and the second slot have the same longitudinal cross-sectional shape, both including a trapezoidal part on the inner side and a rectangular part on the outer side. The first transducer seat (6) and the second transducer seat (8) have the same structure, both including a trapezoidal part on the inner side, a rectangular part in the middle and a rectangular part on the outer side. The transducer seat is inserted into the corresponding slot. The edge of the rectangular part on the outer side of the transducer seat overlaps with the side wall base and is fixedly connected by screws.

3. The structure of the ultrasonic water meter as described in claim 2, characterized in that: The first wiring groove (14) is milled on the inner wall of the first transducer seat (6) and extends in the longitudinal direction; the second wiring groove (15) is milled on the inner wall of the second transducer seat (8) and extends in the longitudinal direction; the wire hole (16) is drilled at an angle.

4. The structure of the ultrasonic water meter as described in claim 3, characterized in that: A sealing gasket is provided between the edge of the outer rectangular portion of the transducer base (6) and the outer facade of the side wall base.

5. The meter body structure of the ultrasonic water meter as described in claim 4, characterized in that: The first side wall base (5), the second side wall base (7), the top base (9), the end flange (2), and the measuring pipe (1) are integral castings. The angle between the center plane of the first side wall base (5) and the second side wall base (7) and the center line of the measuring pipe (1) is 45°.

6. The structure of the ultrasonic water meter as described in claim 5, characterized in that: in The measuring pipe (1) is also equipped with flow guiding components at both ends. The flow guiding components include an annular base (3) and multiple flow guiding plates (4) that are circumferentially spaced at equal angles and extend in the radial direction are installed on the inner wall of the annular base (3).

7. The structure of the ultrasonic water meter as described in claim 6, characterized in that: The bottom of the screen controller (10) has a protrusion and is embedded inside the top base (9). The screen controller (10) is fixedly connected to the top base (9) with screws. An openable cover (11) is also hinged on the screen controller (10).

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