Ultrasonic water meter adapted for assembly on an automated production line

Abstract

The utility model relates to water gauge technical field discloses an ultrasonic water gauge suitable for automatic production line assembly with two two perpendicular first direction, second direction and third direction, including casing, flow tube section, circuit board and transducer. The casing includes upper shell and lower shell, and the lower shell sets up on the upper portion of flow tube section and is detachably connected with flow tube section, and the upper shell is detachably connected on the upper side of lower shell, and the circuit board sets up in the casing. The side of flow tube section to the casing is provided with two transducer mounting holes, and the transducer mounting hole all inserts and sets up with transducer. One of transducer mounting hole and transducer is provided with positioning protrusion, and the other is provided with positioning groove, and the length direction of positioning protrusion and the length direction of positioning groove all are along the third direction. The top of transducer is provided with two first contact pins; The first through -hole that corresponds to the first contact pin one to one is provided on the circuit board, and the first contact pin is inserted into the corresponding first through -hole after passing through the bottom wall of lower shell.

Description

Technical Field

[0001] This utility model relates to the field of water meter technology, and in particular to an ultrasonic water meter adapted for automated production line assembly. Background Technology

[0002] Ultrasonic water meters, as a new generation of flow metering devices, have become core equipment in the water supply field due to their significant advantages such as no moving mechanical parts, low pressure loss, high metering accuracy, and wide range. Based on the time-of-flight principle, ultrasonic water meters achieve high-precision measurement of water flow by accurately calculating the difference in propagation time of ultrasonic waves in the upstream and downstream directions.

[0003] The installation of key components such as transducers, reflectors, and flow channel assemblies in existing ultrasonic water meters relies on manual operation, which is inefficient and has large assembly errors. Furthermore, because these components lack corresponding positioning structures, it is difficult to use automated production lines for automated and precise assembly.

[0004] Therefore, there is an urgent need for an ultrasonic water meter that is compatible with automated production line assembly to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an ultrasonic water meter that is compatible with automated production line assembly, facilitating automated assembly on automated production lines.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An ultrasonic water meter adapted for assembly on an automated production line has a first direction, a second direction, and a third direction that are perpendicular to each other. The third direction is the height direction of the ultrasonic water meter adapted for assembly on an automated production line. The meter includes a housing, a flow pipe section, a circuit board, and a transducer.

[0008] The housing includes an upper housing and a lower housing. The lower housing is disposed on the upper part of the flow pipe section and is detachably connected to the flow pipe section. The upper housing is detachably connected to the upper side of the lower housing. The circuit board is disposed inside the housing.

[0009] The flow pipe section is provided with two transducer mounting holes on the side facing the housing, and the transducer is inserted into each of the transducer mounting holes;

[0010] A positioning protrusion is provided on one of the transducer mounting hole and the transducer, and a positioning groove is provided on the other. The length direction of the positioning protrusion and the length direction of the positioning groove are both along the third direction.

[0011] The transducer has two first pins on its top; the circuit board has first through holes corresponding to the first pins one by one, the first pins pass through the bottom wall of the lower shell and extend into the corresponding first through holes, and the top of the first pins are connected to the circuit board.

[0012] As an improvement to the above technical solution, a temperature sensor is also included. A temperature sensor mounting hole is provided on the side of the flow pipe section facing the housing. The temperature sensor is disposed in the temperature sensor mounting hole. A first mating plane extending along the third direction is provided on the outer wall of the temperature sensor. A second mating plane extending along the third direction is provided on the hole wall of the temperature sensor mounting hole. The first mating plane and the second mating plane are in contact.

[0013] The temperature sensor has two second pins at its top, and the circuit board has a second through hole corresponding to each of the second pins. The second pins pass through the bottom wall of the lower shell and extend into the corresponding second through hole. The top of the second pins is connected to the circuit board.

[0014] As an improvement to the above technical solution, it also includes a battery, a conductive connector, and a battery compartment, wherein the battery compartment is fixedly disposed on the lower side of the housing, and the battery is disposed inside the battery compartment;

[0015] The circuit board has a fourth through hole. The bottom end of the conductive connector is inserted into the battery compartment, and the top end extends into the fourth through hole and connects to the circuit board.

[0016] As an improvement to the above technical solution, it also includes a transmitter bracket, which includes a bracket body and two transmitters fixedly disposed in the bracket body. The transmitters are arranged in a one-to-one correspondence with the transducers, and the transmitters are disposed below the corresponding transducers.

[0017] A positioning post is provided on the outer wall of the support body, and a positioning groove is provided on the inner wall of the flow pipe section, with the positioning post extending into the positioning groove.

[0018] As an improvement to the above technical solution, a first abutting part is provided on the inner wall of one end of the flow pipe section, and a first abutting surface is provided at the end of the emitter bracket away from the positioning post. The first abutting surface abuts against the side of the first abutting part, and a second abutting surface is provided at the end of the positioning post away from the first abutting surface. The second abutting surface abuts against the side wall of the positioning groove.

[0019] As an improvement to the above technical solution, it also includes actuators and control valves;

[0020] The driver is disposed within the housing and located below the circuit board; the control valve includes a valve stem and a valve ball, the valve ball is disposed within the bracket body and located between the two emitter plates, the bracket body is provided with a first clearance hole, the flow passage section is provided with a valve stem mounting hole on the side facing the housing, the lower end of the valve stem is inserted into the valve stem mounting hole and connected to the valve ball, and the output end of the driver is connected to the top end of the valve stem;

[0021] The driver has a plurality of third pins on its top, and the circuit board has a third through hole corresponding to each of the third pins. The tip of each third pin extends into the corresponding third through hole and connects to the circuit board.

[0022] As an improvement to the above technical solution, the control valve further includes a front ball washer, a rear ball washer, and a spring disposed within the bracket body. The front ball washer and the rear ball washer are spaced apart along the first direction. The valve ball is sandwiched between the front ball washer and the rear ball washer. A spring extending along the first direction is sandwiched between the front ball washer and the bracket body.

[0023] As an improvement to the above technical solution, the bracket body includes a first insertion section and a second insertion section. One end of the first insertion section is inserted into one end of the second insertion section. A limiting protrusion is provided on the outer wall of the first insertion section, and a first clearance hole is provided on the side wall of the second insertion section. The limiting protrusion is located inside the first clearance hole.

[0024] As an improvement to the above technical solution, the battery compartment is provided with a battery inlet / outlet at one end along the first direction or the second direction for the battery to enter and exit the battery compartment, and a compartment cover is provided at the battery inlet / outlet, the compartment cover being threadedly connected to the battery compartment.

[0025] As an improvement to the above technical solution, the housing also includes a transparent shell and a sealing ring;

[0026] The upper shell is provided with an observation port, and the transparent shell is provided between the upper shell and the lower shell. The sealing ring is sandwiched between the transparent shell and the lower shell and extends circumferentially along the lower shell.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] This utility model discloses an ultrasonic water meter adapted for automated production line assembly. Two transducers are used to transmit and receive ultrasonic waves. A flow passage section, a lower shell, and an upper shell are arranged sequentially from bottom to top. The transducer mounting holes and the transducers themselves are equipped with positioning protrusions and grooves for positioning the transducers. This facilitates the positioning of the transducers during installation, ensuring that the positions of the two first pins on the transducer are determined when the transducer is installed in the transducer mounting hole on the flow passage section. This facilitates the subsequent alignment and installation of the circuit board with the first pins, thereby enabling automated assembly of the transducers and circuit boards on the automated production line during the ultrasonic water meter assembly process. This improves production efficiency and reduces assembly errors of the transducers and circuit boards. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an ultrasonic water meter adapted for automated production line assembly, provided by an embodiment of this utility model. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the structure of an ultrasonic water meter adapted for automated production line assembly, provided by an embodiment of this utility model. Figure 2 ;

[0031] Figure 3 This is an exploded view of the ultrasonic water meter adapted for automated production line assembly provided in this embodiment of the utility model;

[0032] Figure 4 This is a cross-sectional view of an ultrasonic water meter adapted for automated production line assembly, provided in an embodiment of this utility model. Figure 1 ;

[0033] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0034] Figure 6 yes Figure 4 A magnified view of a section at point B in the middle;

[0035] Figure 7 This is a cross-sectional view of an ultrasonic water meter adapted for automated production line assembly, provided in an embodiment of this utility model. Figure 2 ;

[0036] Figure 8 This is a cross-sectional view of an ultrasonic water meter adapted for automated production line assembly, provided in an embodiment of this utility model. Figure 3 ;

[0037] Figure 9 This is a schematic diagram of the circuit board of an ultrasonic water meter adapted for automated production line assembly, provided by an embodiment of this utility model.

[0038] Figure 10This is a schematic diagram of the driver for an ultrasonic water meter adapted for automated production line assembly, provided in an embodiment of this utility model.

[0039] Figure 11 This is a schematic diagram of the valve stem structure of an ultrasonic water meter adapted for automated production line assembly, provided by an embodiment of this utility model.

[0040] Figure 12 This is a schematic diagram of a portion of the structure of an ultrasonic water meter adapted for automated production line assembly, provided in an embodiment of this utility model.

[0041] Figure 13 This is an exploded view of a portion of the structure of an ultrasonic water meter adapted for automated production line assembly, provided in this embodiment of the present invention.

[0042] Figure 14 This is a schematic diagram of the first connector section of the ultrasonic water meter adapted for automated production line assembly provided in this embodiment of the present invention. Figure 1 ;

[0043] Figure 15 This is a schematic diagram of the first connector section of the ultrasonic water meter adapted for automated production line assembly provided in this embodiment of the present invention. Figure 2 ;

[0044] Figure 16 This is a schematic diagram of the second connector section of an ultrasonic water meter adapted for automated production line assembly, provided in an embodiment of this utility model.

[0045] Figure 17 This is a schematic diagram of the flow pipe section of an ultrasonic water meter adapted for automated production line assembly, provided by an embodiment of this utility model.

[0046] Figure 18 This is a schematic diagram of the transducer structure of the temperature sensor of the ultrasonic water meter adapted for automated production line assembly, provided in this embodiment of the utility model.

[0047] Figure 19 This is a schematic diagram of the structure of the temperature sensor for an ultrasonic water meter adapted for automated production line assembly, provided by an embodiment of this utility model.

[0048] In the picture:

[0049] X, first direction; Y, second direction; Z, third direction;

[0050] 11. Shell;

[0051] 111. Upper shell; 1111. Observation port; 112. Lower shell; 113. Transparent shell; 114. Sealing ring;

[0052] 12. Flow pipe section; 121. Transducer mounting hole; 122. Temperature sensor mounting hole; 1221. Second mating plane; 123. Positioning groove; 124. Valve stem mounting hole; 125. First abutment part;

[0053] 13. Circuit board; 131. First through hole; 132. Second through hole; 133. Third through hole; 134. Fourth through hole;

[0054] 14. Transducer; 141. First pin;

[0055] 100. Positioning protrusion; 200. Positioning groove;

[0056] 15. Temperature sensor; 151. First mating plane; 152. Second pin;

[0057] 16. Battery;

[0058] 17. Conductive connectors;

[0059] 18. Battery compartment; 181. Compartment cover;

[0060] 19. Transmitter support;

[0061] 191. Bracket body; 1911. Positioning post; 19111. Second abutment surface; 19112. Limiting abutment part; 1912. First clearance hole;

[0062] 1913, First insertion section; 19131, Limiting protrusion; 1914, Second insertion section;

[0063] 192. Spinning plate;

[0064] 193. Filter screen; 1931. Connecting part;

[0065] 194. First contact surface;

[0066] 20. Driver; 201. Third pin;

[0067] 21. Control valve; 211. Valve ball; 212. Valve stem; 213. Front ball washer; 214. Rear ball washer; 215. Spring;

[0068] 22. First screw; 23. Second screw; 24. Third screw;

[0069] 25. Anti-tamper cap. Detailed Implementation

[0070] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0071] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0072] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0073] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0074] like Figures 1-19As shown, this embodiment provides an ultrasonic water meter adapted for automated production line assembly. The ultrasonic water meter has two perpendicular directions: a first direction X, a second direction Y, and a third direction Z. The third direction Z is the height direction of the ultrasonic water meter. The ultrasonic water meter includes a housing 11, a flow passage section 12, a circuit board 13, and a transducer 14. The housing 11 includes an upper shell 111 and a lower shell 112. The lower shell 112 is disposed on the upper part of the flow passage section 12 and detachably connected to it. The upper shell 111 is detachably connected to the upper side of the lower shell 112. The circuit board 13 is disposed inside the housing 11. Two transducer mounting holes 121 are provided on the side of the flow passage section 12 facing the housing 11, spaced apart along the first direction X. A transducer 14 is inserted into each of the transducer mounting holes 121. One of the transducer mounting holes 121 and the transducer 14 is provided with a positioning protrusion 100, and the other is provided with a positioning groove 200. The length direction of both the positioning protrusion 100 and the positioning groove 200 extends along the third direction Z. The top of the transducer 14 is provided with two first pins 141; the circuit board 13 is provided with first through holes 131 corresponding to the first pins 141. The first pins 141 pass through the bottom wall of the lower shell 112 and extend into the corresponding first through holes 131. The top of the first pins 141 is connected to the circuit board 13.

[0075] The ultrasonic water meter provided in this embodiment, adapted for automated production line assembly, has two transducers 14 for transmitting and receiving ultrasonic waves. The flow pipe section 12, lower shell 112, and upper shell 111 are arranged sequentially from bottom to top. The transducer mounting hole 121 and the transducer 14 are provided with positioning protrusions 100 and positioning grooves 200 for positioning the transducer 14. This facilitates positioning the transducer 14 during installation, ensuring that when the transducer 14 is installed in the transducer mounting hole 121 on the flow pipe section 12, the positions of the two first pins 141 on the transducer 14 are determined. This facilitates the subsequent alignment and installation of the circuit board 13 with the first pins 141, thereby enabling automated assembly of the transducer 14 and circuit board 13 on the automated production line during the ultrasonic water meter assembly process. This improves production efficiency, reduces assembly errors of the transducer 14 and circuit board 13, and enhances product consistency.

[0076] In this embodiment, as Figure 17 and Figure 18 As shown, the positioning protrusion 100 is disposed on the transducer 14, and the positioning groove 200 is disposed on the wall of the transducer mounting hole 121.

[0077] Optionally, such as Figure 3As shown, the flow pipe section 12 is connected to the lower housing 112 by multiple first screws 22, and the upper housing 111 is connected to the lower housing 112 by multiple second screws 23. Anti-tamper caps 25 are provided at the second screws 23, and the anti-tamper caps 25 at the second screws 23 are interference-fitted with the screw holes on the lower housing 112. By providing anti-tamper caps 25 at the second screws 23, the disassembly of the housing 11 by non-professionals is prevented.

[0078] Optionally, such as Figure 3 , Figure 4 and Figure 7 As shown, the ultrasonic water meter adapted for automated production line assembly provided in this embodiment also includes a temperature sensor 15. A temperature sensor mounting hole 122 is provided on the side of the flow pipe section 12 facing the housing 11. The temperature sensor 15 is disposed within the temperature sensor mounting hole 122. A first mating plane 151 extending in a third direction Z is provided on the outer wall of the temperature sensor 15. A second mating plane 1221 extending in a third direction Z is provided on the wall of the temperature sensor mounting hole 122. The first mating plane 151 and the second mating plane 1221 are in contact. Two second pins 152 are provided at the top of the temperature sensor 15. A second through hole 132 corresponding to each second pin 152 is provided on the circuit board 13. The second pins 152 pass through the bottom wall of the lower housing 112 and extend into the corresponding second through hole 132. The top of the second pins 152 is connected to the circuit board 13. Temperature sensor 15 is used to monitor the water temperature flowing in the flow section 12 to correct the volumetric flow rate within the flow section 12, making the measurement results of the ultrasonic water meter adapted for automated production line assembly more accurate. The mating of the first mating plane 151 and the second mating plane 1221 facilitates the positioning of temperature sensor 15 during installation, ensuring that the positions of the two second pins 152 are determined after installation. This facilitates the subsequent alignment and installation of the circuit board 13 with the second pins 152, thereby enabling the automatic assembly of temperature sensor 15 on the automated production line during the assembly process of the ultrasonic water meter adapted for automated production line assembly in this embodiment. In this embodiment, the outer contour of the temperature sensor 15 in the Z-direction perpendicular to the third direction is D-shaped.

[0079] Optionally, such as Figure 3 , Figure 7 and Figure 8The ultrasonic water meter adapted for automated production line assembly provided in this embodiment also includes a battery 16, a conductive connector 17, and a battery compartment 18. The battery compartment 18 is fixedly disposed on the lower side of the housing 11, and the battery 16 is disposed inside the battery compartment 18. A fourth through hole 134 is provided on the circuit board 13. The bottom end of the conductive connector 17 is inserted into the battery compartment 18, and the top end extends into the fourth through hole 134 and connects to the circuit board 13. After the lower housing 112 is installed on the flow pipe section 12, the bottom end of the conductive connector 17 can be inserted into the battery compartment 18 through the lower housing 112. After the circuit board 13 is subsequently installed, the top end of the conductive connector 17 is exposed on the circuit board 13 through the fourth through hole 134, thereby facilitating the connection between the circuit board 13 and the top end of the conductive connector 17. In this embodiment, two fourth through holes 134 are provided on the circuit board 13. The top ends of the positive and negative connecting pieces of the conductive connector 17 are respectively inserted into one fourth through hole 134 and electrically connected to the circuit board 13.

[0080] Furthermore, such as Figure 1 , Figure 7 and Figure 8 As shown, the battery compartment 18 has a battery inlet / outlet at one end along the first direction X or the second direction Y for the battery 16 to enter and exit the battery compartment 18. A cover 181 is provided at the battery inlet / outlet, and the cover 181 is threaded onto the battery compartment 18. In this embodiment, the cover 181 has external threads, and the inner walls of the battery inlet / outlet have internal threads. The cover 181 is threaded onto the battery compartment 18, and the battery inlet / outlet is located at one end of the battery compartment 18 along the first direction X. When the cover 181 is threaded onto the battery compartment 18, the outer end face of the cover 181 is coplanar with the end face of the battery compartment 18 at the end with the battery inlet / outlet. Two connecting grooves are provided on the outer end face of the cover 181. When disassembling the cover 181, a disassembly tool can be inserted into the connecting grooves to rotate the cover 181, thereby allowing the battery 16 to be installed or replaced after removing the cover 181. Anti-tamper caps 25 are provided on the connecting grooves to prevent non-professionals from disassembling the cover 181.

[0081] Optionally, such as Figure 3 , Figure 12 and Figure 13 As shown, the ultrasonic water meter adapted for automated production line assembly provided in this embodiment also includes a transmitter bracket 19. The transmitter bracket 19 includes a bracket body 191 and two transmitters 192 fixedly disposed within the bracket body 191. The transmitters 192 are arranged in a one-to-one correspondence with the transducers 14, and are positioned below the corresponding transducers 14. Preferably, the transmitters 192 are inclined, that is, the transmitters 192 are arranged at an angle to the center line of the bracket body 191. Positioning the transmitters 192 below the transducers 14 optimizes energy transfer and improves the transmission efficiency of ultrasonic waves.

[0082] Furthermore, such as Figure 4 , Figure 5 and Figure 7 As shown, a positioning post 1911 is provided on the outer wall of the support body 191, and a positioning groove 123 is provided on the inner wall of the flow pipe section 12, with the positioning post 1911 extending into the positioning groove 123. The cooperation between the positioning post 1911 and the positioning groove 123 ensures that after the transmitter support 19 in this embodiment is installed in the flow pipe section 12, the position of the transmitter support 19 is accurate, and the position and orientation of the transmitter 192 meet the requirements, which is beneficial to improving measurement accuracy. Specifically, the positioning post 1911 has a first end and a second end that are arranged opposite to each other along its own length direction. The length direction of the positioning post 1911 is along the first direction X. The first end of the positioning post 1911 is fixedly connected to the outer wall of the bracket body 191. There is a gap between the second end of the positioning post 1911 and the outer wall of the bracket body 191. A limiting abutment part 19112 is provided on the side of the second end of the positioning post 1911 away from the bracket body 191. During the process of the bracket body 191 being inserted into the flow pipe section 12, the limiting abutment part 19112 abuts against the inner wall of the flow pipe section 12. Under the compression of the inner wall of the flow pipe section 12, the second end of the positioning post 1911 moves closer to the outer wall of the bracket body 191, and the positioning post 1911 undergoes elastic deformation. When the bracket body 191 is inserted into the installation position, the limiting abutment part 19112 of the positioning post 1911 is inserted into the positioning groove 123 on the inner wall of the flow pipe section 12 under the action of the elastic force of the positioning post 1911.

[0083] Furthermore, such as Figures 4-7 As shown, a first abutment portion 125 is provided on the inner wall of one end of the flow passage 12. A first abutment surface 194 is provided at the end of the transmitter bracket 19 away from the positioning post 1911. The first abutment surface 194 abuts against the side of the first abutment portion 125. A second abutment surface 19111 is provided at the end of the positioning post 1911 away from the first abutment surface 194. The second abutment surface 19111 abuts against the side wall of the positioning groove 123. By abutting the side of the first abutment portion 125 with the first abutment surface 194 and abutting the side wall of the positioning groove 123 with the second abutment surface 19111, the transmitter bracket 19 is confined within the flow passage 12 after being inserted into it, thus preventing the transmitter bracket 19 from coming out of the flow passage 12 during use of the ultrasonic water meter assembled on the automated production line. Furthermore, this limiting connection method of the transmitter bracket 19 means that the process of inserting the transmitter bracket 19 into the flow passage section 12 is also the process of connecting the transmitter bracket 19 and the flow passage section 12, which simplifies the installation process of the transmitter bracket 19.

[0084] Optionally, such as Figure 3 , Figure 4 , Figure 7 , Figure 10 and Figure 11As shown, the ultrasonic water meter adapted for automated production line assembly provided in this embodiment also includes a driver 20 and a control valve 21. The driver 20 is disposed inside the housing 11 and located below the circuit board 13; the control valve 21 includes a valve stem 212 and a valve ball 211. The valve ball 211 is disposed inside the bracket body 191 and located between two transmitting plates 192. The bracket body 191 is provided with a first clearance hole 1912. The flow pipe section 12 is provided with a valve stem mounting hole 124 on the side facing the housing 11. The lower end of the valve stem 212 is inserted into the valve stem mounting hole 124 and connected to the valve ball 211. The output end of the driver 20 is connected to the top end of the valve stem 212. The top of the driver 20 is provided with a plurality of third pins 201. The circuit board 13 is provided with third through holes 133 corresponding to the third pins 201 one by one. The top end of the third pin 201 extends into the corresponding third through hole 133 and connects to the circuit board 13. The actuator 20 is used to drive the valve ball 211 to rotate, thereby opening and closing the flow channel within the flow pipe section 12. The specific structure of the actuator 20 and the specific method by which the actuator 20 drives the valve ball 211 to open and close the flow channel are existing technologies in the field of ultrasonic water meters and will not be elaborated here. In this embodiment, the actuator 20 is connected to the lower housing 112 by a plurality of third screws 24.

[0085] When assembling an ultrasonic water meter for use on an automated production line, the valve ball 211, located inside the bracket body 191, is inserted into the flow passage section 12 along with the bracket body 191. With the relative position of the valve ball 211 and the bracket body 191 determined, the positioning pin 1911 and the positioning groove 123 are used for positioning. This ensures that after the transmitter bracket 19 is installed, the relative position of the valve ball 211 and the valve stem mounting hole 124 is determined. The valve stem 212 and the valve ball 211, as well as the actuator 20 and the valve stem 212, are all plug-in connections, which facilitates the subsequent installation of the flow passage section 12, the valve stem 212, and the actuator 20 from bottom to top.

[0086] Those skilled in the art will understand that, in order to ensure a stable electrical connection between the first pin 141, the second pin 152, the third pin 201, and the conductive connector 17 and the circuit board 13, the first pin 141, the second pin 152, the third pin 201, and the conductive connector 17 need to be further connected and fixed to the circuit board 13 after being inserted into the circuit board 13. For example, operations such as soldering each pin to the circuit board 13 are performed. The specific connection and fixing methods between the pins and the circuit board 13 are existing technologies in the art and will not be described here.

[0087] Optionally, such as Figure 4 , Figure 5 and Figure 13The control valve 21 also includes a front ball washer 213, a rear ball washer 214, and a spring 215 disposed within the bracket body 191. The front ball washer 213 and the rear ball washer 214 are spaced apart along the first direction X. The valve ball 211 is sandwiched between the front ball washer 213 and the rear ball washer 214. A spring 215 extending along the first direction X is sandwiched between the front ball washer 213 and the bracket body 191. The valve ball 211 is suspended and positioned under the preload of the spring 215 and is located in the area between the two transducers 14. This layout not only saves space but also significantly reduces the driving torque required for valve opening and closing, and the driving current is less than that of traditional valve control structures, thereby reducing the power consumption of the actuator 20 and increasing the battery 16's operating time.

[0088] Optionally, such as Figure 4 and Figure 7 As shown, the driver 20 is located between the temperature sensor 15 and one of the two transducers 14. That is to say, after the transducer 14 and the temperature sensor 15 are installed, the first pin 141 of the transducer 14 and the second pin 152 of the temperature sensor 15 will not obstruct the installation of the driver 20. After the driver 20 is installed, its presence will not affect the insertion of the first pin 141 of the transducer 14 into the first through hole 131 on the circuit board 13 and the insertion of the second pin 152 of the temperature sensor 15 into the second through hole 132 on the circuit board 13 during the subsequent installation of the circuit board 13.

[0089] Optionally, such as Figures 12-16 As shown, the bracket body 191 includes a first insertion segment 1913 and a second insertion segment 1914. One end of the first insertion segment 1913 is inserted into one end of the second insertion segment 1914. A limiting protrusion 19131 is provided on the outer wall of the first insertion segment 1913, and a first clearance hole 1912 is provided on the side wall of the second insertion segment 1914. The limiting protrusion 19131 is located inside the first clearance hole 1912. The cooperation between the limiting protrusion 19131 and the first clearance hole 1912 makes it difficult for the first insertion segment 1913 and the second insertion segment 1914 to become loose. Preferably, a plurality of limiting protrusions 19131 are arranged at intervals along the circumference of the first insertion segment 1913, and the first clearance hole 1912 is arranged in a one-to-one correspondence with the limiting protrusions 19131. When the first insertion segment 1913 and the second insertion segment 1914 are inserted, the limiting protrusions 19131 abut against the side wall of the first clearance hole 1912.

[0090] Optionally, such as Figure 12 and Figure 13As shown, the emitter bracket 19 also includes a filter screen 193. A connector 1931 is provided on one side of the filter screen 193. A connector hole is provided at the middle of the end of the first connector segment 1913 away from the second connector segment 1914. The connector 1931 of the filter screen 193 is inserted into the connector hole of the first connector segment 1913. The filter screen 193 is used to filter the water entering the flow pipe section 12. The connection between the connector 1931 of the filter screen 193 and the first connector segment 1913 is an interference fit.

[0091] Optionally, such as Figures 1-4 As shown, the housing 11 also includes a transparent shell 113 and a sealing ring 114. An observation port 1111 is provided on the upper shell 111. The transparent shell 113 is disposed between the upper shell 111 and the lower shell 112. A sealing ring 114 is sandwiched between the transparent shell 113 and the lower shell 112, extending circumferentially along the lower shell 112. The observation port 1111, in conjunction with the transparent shell 113, facilitates the operator's observation of the measurement results of the ultrasonic water meter adapted for automated production line assembly, displayed on the circuit board 13. In this embodiment, a receiving groove extending circumferentially along the top surface of the lower shell 112 is provided, the sealing ring 114 is disposed within the receiving groove, and the lower end of the transparent shell 113 is inserted into the receiving groove.

[0092] Optionally, the housing 11 is filled with waterproof adhesive to improve the waterproof sealing effect inside the housing 11. In this embodiment, the circuit board 13 is coated with conformal coating, and a sealing ring 114 is sandwiched between the transparent housing 113 and the lower housing 112. Combined with the waterproof adhesive filled inside the housing 11, a three-layer protection system is formed, enabling the ultrasonic water meter adapted for automated production line assembly in this embodiment to operate stably and reliably in environments such as deep water and dust.

[0093] The assembly sequence of the ultrasonic water meter adapted for automated production line assembly provided in this embodiment is as follows:

[0094] The filter 193 is connected to the first insertion section 1913 and the first insertion section 1913 is connected to the second insertion section 1914 by insertion. The emitter bracket 19 is installed into the flow pipe section 12. During the installation process, the positioning post 1911 and the positioning groove 123 cooperate to achieve accurate positioning of the emitter bracket 19.

[0095] On the flow passage 12, the transducer 14, temperature sensor 15, valve stem 212, lower housing 112, actuator 20, conductive connector 17, circuit board 13, sealing ring 114, transparent housing 113, and upper housing 111 are installed sequentially. Specifically, the two transducers 14 are inserted into the transducer mounting holes 121 on the flow passage 12, the temperature sensor 15 is inserted into the temperature sensor mounting hole 122 on the flow passage 12, the valve stem 212 is inserted into the valve stem mounting hole 124 on the flow passage 12, the lower housing 112 is placed on top of the flow passage 12, and the lower housing 112 is connected to the flow passage 12 by the first screw 22. The actuator 20 is placed inside the lower housing 112, and the actuator 20 is connected to the lower housing 112 by the second screw 23. Insert the conductive connector 17 into the lower housing 112, place the circuit board 13 into the lower housing 112, ensuring that the first pin 141, the second pin 152, the third pin 201, and the tip of the conductive connector 17 all pass through the corresponding through holes on the circuit board 13. Install the sealing ring 114 into the receiving groove at the top of the lower housing 112, insert the transparent shell 113 into the receiving groove, and then snap the upper shell 111 onto the transparent shell 113. Connect the lower housing 112 and the upper shell 111 using the third screw 24. Insert the battery 16 into the battery compartment 18, and connect the compartment cover 181 to the battery inlet / outlet of the battery compartment 18. Install tamper-evident caps 25 at the second screw 23 and the third screw 24.

[0096] In this embodiment, the ultrasonic water meter adapted for automated production line assembly is assembled by inserting the components sequentially from bottom to top, supplemented by screw connections. Furthermore, key components are equipped with corresponding positioning structures, which facilitates automated assembly operations.

[0097] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An ultrasonic water meter adapted for assembly on an automated production line, having two perpendicular directions (X, Y, and Z), wherein the third direction (Z) is the height direction of the ultrasonic water meter adapted for assembly on an automated production line, characterized in that, It includes a housing (11), a flow passage section (12), a circuit board (13), and a transducer (14); The housing (11) includes an upper housing (111) and a lower housing (112). The lower housing (112) is disposed on the upper part of the flow pipe section (12) and is detachably connected to the flow pipe section (12). The upper housing (111) is detachably connected to the upper side of the lower housing (112). The circuit board (13) is disposed inside the housing (11). The flow pipe section (12) has two transducer mounting holes (121) on the side facing the housing (11), and the transducer (14) is inserted into each of the transducer mounting holes (121). One of the transducer mounting hole (121) and the transducer (14) is provided with a positioning protrusion (100), and the other is provided with a positioning groove (200). The length direction of the positioning protrusion (100) and the length direction of the positioning groove (200) are both along the third direction (Z). The transducer (14) has two first pins (141) on its top; the circuit board (13) has a first through hole (131) corresponding to the first pins (141) one by one. The first pins (141) pass through the bottom wall of the lower shell (112) and extend into the corresponding first through hole (131). The top of the first pins (141) is connected to the circuit board (13).

2. The ultrasonic water meter adapted for automated production line assembly according to claim 1, characterized in that, It also includes a temperature sensor (15), and a temperature sensor mounting hole (122) is provided on the side of the flow pipe section (12) facing the housing (11). The temperature sensor (15) is disposed in the temperature sensor mounting hole (122). A first mating plane (151) extending along the third direction (Z) is provided on the outer wall of the temperature sensor (15), and a second mating plane (1221) extending along the third direction (Z) is provided on the hole wall of the temperature sensor mounting hole (122). The first mating plane (151) and the second mating plane (1221) are in contact. The temperature sensor (15) has two second pins (152) at its top. The circuit board (13) has a second through hole (132) that corresponds to the second pins (152). The second pins (152) pass through the bottom wall of the lower shell (112) and extend into the corresponding second through hole (132). The top of the second pins (152) is connected to the circuit board (13).

3. The ultrasonic water meter adapted for automated production line assembly according to claim 2, characterized in that, It also includes a battery (16), a conductive connector (17) and a battery compartment (18), wherein the battery compartment (18) is fixedly disposed on the lower side of the housing (11) and the battery (16) is disposed inside the battery compartment (18); The circuit board (13) is provided with a fourth through hole (134). The bottom end of the conductive connector (17) is inserted into the battery compartment (18), and the top end extends into the fourth through hole (134) and is connected to the circuit board (13).

4. The ultrasonic water meter adapted for automated production line assembly according to claim 3, characterized in that, It also includes a transmitter bracket (19), which includes a bracket body (191) and two transmitters (192) fixedly disposed in the bracket body (191). The transmitters (192) are arranged in a one-to-one correspondence with the transducers (14), and the transmitters (192) are disposed below the corresponding transducers (14). The bracket body (191) is provided with a positioning post (1911) on its outer wall, and the flow pipe section (12) is provided with a positioning groove (123) on its inner wall, with the positioning post (1911) extending into the positioning groove (123).

5. The ultrasonic water meter adapted for automated production line assembly according to claim 4, characterized in that, A first abutment portion (125) is provided on the inner wall of one end of the flow pipe section (12). A first abutment surface (194) is provided at the end of the emitter bracket (19) away from the positioning post (1911). The first abutment surface (194) abuts against the side of the first abutment portion (125). A second abutment surface (19111) is provided at the end of the positioning post (1911) away from the first abutment surface (194). The second abutment surface (19111) abuts against the side wall of the positioning groove (123).

6. The ultrasonic water meter adapted for automated production line assembly according to claim 4, characterized in that, It also includes a driver (20) and a control valve (21); The driver (20) is disposed inside the housing (11) and located below the circuit board (13); the control valve (21) includes a valve stem (212) and a valve ball (211), the valve ball (211) is disposed inside the bracket body (191) and located between the two emitters (192), the bracket body (191) is provided with a first clearance hole (1912), the flow passage section (12) is provided with a valve stem mounting hole (124) on the side facing the housing (11), the lower end of the valve stem (212) is inserted into the valve stem mounting hole (124) and connected to the valve ball (211), and the output end of the driver (20) is connected to the top end of the valve stem (212); The driver (20) has a plurality of third pins (201) on its top, and the circuit board (13) has a third through hole (133) corresponding to each of the third pins (201). The top of the third pin (201) extends into the corresponding third through hole (133) and connects to the circuit board (13).

7. The ultrasonic water meter adapted for automated production line assembly according to claim 6, characterized in that, The control valve (21) further includes a front ball washer (213), a rear ball washer (214), and a spring (215) disposed in the bracket body (191). The front ball washer (213) and the rear ball washer (214) are spaced apart along the first direction (X). The valve ball (211) is sandwiched between the front ball washer (213) and the rear ball washer (214). A spring (215) extending along the first direction (X) is sandwiched between the front ball washer (213) and the bracket body (191).

8. The ultrasonic water meter adapted for automated production line assembly according to claim 6, characterized in that, The bracket body (191) includes a first insertion section (1913) and a second insertion section (1914). One end of the first insertion section (1913) is inserted into one end of the second insertion section (1914). A limiting protrusion (19131) is provided on the outer wall of the first insertion section (1913). A first clearance hole (1912) is provided on the side wall of the second insertion section (1914). The limiting protrusion (19131) is located inside the first clearance hole (1912).

9. The ultrasonic water meter adapted for automated production line assembly according to claim 3, characterized in that, The battery compartment (18) is provided with a battery inlet / outlet for the battery (16) to enter and exit the battery compartment (18) at one end along the first direction (X) or the second direction (Y). A compartment cover (181) is provided at the battery inlet / outlet and is threadedly connected to the battery compartment (18).

10. The ultrasonic water meter adapted for automated production line assembly according to any one of claims 1-9, characterized in that, The housing (11) also includes a transparent shell (113) and a sealing ring (114); An observation port (1111) is provided on the upper shell (111), and a transparent shell (113) is provided between the upper shell (111) and the lower shell (112). A sealing ring (114) is sandwiched between the transparent shell (113) and the lower shell (112), and the sealing ring (114) extends circumferentially along the lower shell (112).

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