Ultrasonic water meter

Abstract

The application relates to the technical field of metering devices, and discloses an ultrasonic water meter, which comprises a meter pipe main body, at least one sensor mounting interface is arranged on the meter pipe main body, an acoustic beam reflection device is arranged on a fluid passage in the meter pipe main body, and a fixed socket is arranged on the acoustic beam reflection device and corresponds to the position of the sensor mounting interface. Therefore, the ultrasonic water meter can realize the expansion and integration of the ultrasonic water meter detection function on the basis of detecting fluid flow by arranging at least one sensor mounting interface on the meter pipe main body, and diversified detection functions of the ultrasonic water meter can be realized.

Description

Technical Field

[0001] This application relates to the field of metering device technology, and in particular to an ultrasonic water meter. Background Technology

[0002] An ultrasonic water meter is a smart water meter that uses ultrasonic technology to measure fluid flow. It features high precision, no moving mechanical parts, and good long-term stability.

[0003] However, traditional ultrasonic water meters can usually only detect fluid flow, which is a relatively simple detection function and it is difficult to integrate other detection components. Utility Model Content

[0004] This application provides an ultrasonic water meter. By setting at least one sensor installation interface on the meter tube body, the ultrasonic water meter can expand and integrate the detection function of the ultrasonic water meter based on the detection of fluid flow, which facilitates the realization of diversified detection functions of the ultrasonic water meter.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, embodiments of this application provide an ultrasonic water meter, including a meter tube body, at least one sensor mounting interface on the meter tube body, a sound beam reflecting device on the fluid channel inside the meter tube body, and a fixing socket on the sound beam reflecting device corresponding to the position of the sensor mounting interface.

[0007] According to the embodiments of this application, the ultrasonic water meter can expand and integrate the detection function of the ultrasonic water meter by setting at least one sensor installation interface on the meter tube body, which is based on the detection of fluid flow rate, and facilitates the realization of diversified detection functions of the ultrasonic water meter.

[0008] Optionally, the sensor mounting interface is used to mount a sensor element for detecting fluid parameters in the fluid channel, with a portion of the sensor element passing through the sensor mounting interface and plugged into a fixed socket.

[0009] With this setup, when fluid flows through the fluid channel, the fluid in the fluid channel can enter the fixed socket. The sensor element acquires the fluid parameters in the fixed socket. At the same time, the sensor element plugged into the fixed socket can also achieve rapid positioning of the sound beam reflection device. In addition, it also enables the reuse of the sensor element, which helps to improve installation efficiency while saving costs.

[0010] Optionally, there are two sensor mounting interfaces, both of which are located off the central axis of the meter tube body.

[0011] This configuration creates two constraint points on the sound beam reflecting device, effectively locking the rotational degree of freedom of the sound beam reflecting device. This reduces wear between the sound beam reflecting device and the meter tube body, which not only helps to extend the service life of the ultrasonic water meter but also improves measurement accuracy.

[0012] Optionally, the two sensor mounting interfaces are offset from the central axis of the meter tube body and staggered.

[0013] This setup results in a longer distance between the two constraint points, which increases the lever arm between them. It is understood that the larger the lever arm of the two constraint points, the greater the counter-torque generated by the sound beam reflecting device. This makes the sound beam reflecting device more resistant to rotation, which is beneficial for further improving the service life and measurement accuracy of the ultrasonic water meter.

[0014] Optionally, at least two sensor mounting interfaces are provided, and the central axes of the multiple sensor mounting interfaces are arranged in parallel.

[0015] This configuration creates two constraint points on the sound beam reflecting device that are perpendicular to the axis of the main body of the tube, thus achieving a better constraint effect and further improving the sound beam reflecting device's ability to resist rotation.

[0016] Optionally, the sound beam reflecting device includes a fixing member and two ultrasonic reflectors. The fixing member is provided with a fixing socket, and the two ultrasonic reflectors are disposed on both sides of the fixing member along the axial direction of the fixing member.

[0017] This configuration allows for the measurement of the flow rate of fluid passing through the ultrasonic water meter based on the time difference of ultrasonic wave propagation, thus realizing the fluid flow detection function of the ultrasonic water meter.

[0018] Optionally, the sound beam reflecting device also includes two mounting plates, which are disposed at both ends of the fixing member along the axial direction of the fixing member, and each ultrasonic reflector is detachably disposed on the corresponding mounting plate.

[0019] With this configuration, the ultrasonic reflector can be constructed as a modular structure, which allows for replacement as needed and helps reduce material waste.

[0020] Optionally, a portion of the outer peripheral surface of the fixing member and the inner peripheral surface of the meter tube body together form a flow-slowing cavity. The fixing member has a first flow channel, which is connected to the fluid channel. The flow-slowing cavity is connected to the sensor mounting interface, and the flow-slowing cavity is also connected to the first flow channel through a fixing socket.

[0021] With this configuration, when some fluid flows into the slow-flow cavity from the first flow channel, the sensor element installed in the sensor mounting interface can detect the fluid parameters in the slow-flow cavity because the slow-flow cavity is connected to the sensor mounting interface. At this time, the slow-flow cavity is equivalent to a water storage tank. The slow-flow cavity forms a stable water flow environment by accumulating fluid. This configuration can reduce the impact of turbulence on the detection accuracy of the sensor element and is beneficial to improving the detection accuracy of the sensor element.

[0022] Optionally, the outer peripheral surface of the fastener is provided with reinforcing ribs, and the reinforcing ribs extend along the axial direction of the fastener.

[0023] In this way, without increasing the wall thickness of the fastener, the bending and compressive strength of the fastener in the axial direction can be improved, thereby ensuring the structural strength of the fastener while improving the stability of the fastener within the main body of the meter tube.

[0024] Optionally, there are multiple reinforcing ribs, which are arranged at intervals along the circumference of the fastener.

[0025] The spaced arrangement of reinforcing ribs helps to evenly disperse the impact stress of the water flow. By dispersing the stress, local deformation of the fixing parts (such as unilateral depression) can be avoided, which helps to enhance the radial deformation resistance of the fixing parts and ensure the positioning accuracy of the ultrasonic reflector. In addition, the multiple contact points between the reinforcing ribs and the inner wall of the meter tube body will generate high frictional resistance, which helps to further suppress the rotational wear of the fixing parts caused by the water flow torque. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A perspective view of an ultrasonic water meter provided in one embodiment of this application;

[0028] Figure 2 A perspective view of the main body of the meter tube provided in one embodiment of this application;

[0029] Figure 3 A perspective view of a sound beam reflecting device provided in one embodiment of this application;

[0030] Figure 4 A top view of an ultrasonic water meter provided in one embodiment of this application;

[0031] Figure 5 yes Figure 5 Sectional view at point AA;

[0032] Figure 6 yes Figure 5 Sectional view at point BB;

[0033] Figure 7 yes Figure 5 Sectional view at point CC.

[0034] [Explanation of Labels in the Attached Image]

[0035] Ultrasonic water meter 100;

[0036] 1. Meter body; 10. Sensor mounting interface; 11. Fluid channel; 111. Liquid inlet; 112. Liquid outlet;

[0037] 2. Sound beam reflection device; 20. Fixing port; 21. Fixing member; 211. Reinforcing rib; 22. First flow channel; 23. Ultrasonic reflector plate; 24. Mounting plate;

[0038] Temperature sensor 3;

[0039] Pressure sensor 4;

[0040] Slow-flow chamber 5;

[0041] First direction X. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0044] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0047] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0048] It should be noted that an ultrasonic water meter is a smart water meter that uses ultrasonic technology to measure fluid flow. It features high precision, no moving mechanical parts, and good long-term stability.

[0049] However, traditional ultrasonic water meters can usually only detect fluid flow, which is a relatively simple detection function and it is difficult to integrate other detection components.

[0050] Based on this, this application proposes an ultrasonic water meter 100. By setting at least one sensor mounting interface 10 on the meter tube body 1, the ultrasonic water meter 100 can expand and integrate the detection function of the ultrasonic water meter 100 on the basis of detecting fluid flow, which facilitates the realization of diversified detection functions of the ultrasonic water meter 100.

[0051] The ultrasonic water meter 100 proposed in this application is described below with reference to the accompanying drawings.

[0052] like Figures 1-7As shown, the ultrasonic water meter 100 according to the first aspect of this application includes: a meter tube body 1, at least one sensor mounting interface 10 is provided on the meter tube body 1, a sound beam reflecting device 2 is provided on the fluid channel 11 inside the meter tube body 1, and a fixing socket 20 is provided on the sound beam reflecting device 2 at the position corresponding to the sensor mounting interface 10.

[0053] Specifically, such as Figure 5 As shown, the main body 1 of the meter tube is constructed as a tubular structure. The fluid channel 11 of the main body 1 extends along the axial direction of the main body 1. The fluid channel 11 includes an inlet 111 and an outlet 112, wherein the inlet 111 and the outlet 112 are respectively located on both sides of the main body 1.

[0054] Furthermore, the sound beam reflection device 2 is disposed within the fluid channel 11. The ultrasonic water meter 100 uses the sound beam reflection device 2 to detect the fluid flow rate. In some embodiments of this application, in order to further expand the detection function of the ultrasonic water meter 100, at least one sensor mounting interface 10 is provided on the meter tube body 1. For example, the number of sensor mounting interfaces 10 can be 1, 2, 3, 4, or 5, and is designed according to actual needs. No specific limitation is made here. The sensor mounting interface 10 is connected to the fluid channel 11, and each sensor mounting interface 10 can be used to install sensor elements. In this way, the detection function of the ultrasonic water meter 100 can be expanded and integrated on the basis of detecting the fluid flow rate, which facilitates the realization of diversified detection functions of the ultrasonic water meter 100.

[0055] It should be noted that a fixing socket 20 is provided on the sound beam reflecting device 2 at the position corresponding to the sensor mounting interface 10. With this arrangement, when the sound beam reflecting device 2 is fixedly installed using the fixing socket 20, since the position of the sensor mounting interface 10 is opposite to the position of the fixing socket 20, it is convenient for the fixing component to extend into the sensor mounting interface 10 for installation, thereby improving the installation and positioning efficiency of the sound beam reflecting device 2.

[0056] In some embodiments of this application, such as Figure 1 , Figure 6 and Figure 7 As shown, the sensor mounting interface 10 is used to mount a sensor element for detecting fluid parameters in the fluid channel 11. Part of the sensor element passes through the sensor mounting interface 10 and is inserted into the fixed socket 20.

[0057] Specifically, there can be one or more sensor mounting interfaces 10. The sensor mounting interface 10 is used to install sensor elements for detecting fluid parameters in the fluid channel 11. Assuming that a sensor mounting interface 10 is set on the main body 1 of the meter tube, if it is necessary to detect the fluid temperature in the fluid channel 11, a temperature sensor 3 can be set on the sensor mounting interface 10. The temperature sensor 3 is fixed to the main body 1 of the meter tube. The fixed installation method includes, but is not limited to, bolt connection. The temperature sensor 3 is used to block the sensor mounting interface 10. Part of the temperature sensor 3 passes through the sensor mounting interface 10 and is inserted into the fixed socket 20. Optionally, the fixed socket 20 is connected to the fluid channel 11. With this setting, when the fluid flows through the fluid channel 11, the fluid in the fluid channel 11 can enter the fixed socket 20. The temperature sensor 3 obtains the fluid temperature in the fixed socket 20. At the same time, the temperature sensor 3 inserted into the fixed socket 20 can also realize the rapid positioning of the sound beam reflection device 2, realize the reuse of the temperature sensor 3, and help to save costs while improving installation efficiency.

[0058] Similarly, assuming a sensor mounting interface 10 is provided on the main body 1 of the meter tube, if it is necessary to detect the fluid pressure in the fluid channel 11, a pressure sensor 4 can be provided on the sensor mounting interface 10. The pressure sensor 4 is fixed to the main body 1 of the meter tube, and the fixed installation method includes but is not limited to bolt connection. The pressure sensor 4 is used to block the sensor mounting interface 10. Part of the pressure sensor 4 passes through the sensor mounting interface 10 and is inserted into the fixed socket 20. Optionally, the fixed socket 20 is connected to the fluid channel 11. With this setting, when the fluid flows through the fluid channel 11, the fluid in the fluid channel 11 can enter the fixed socket 20. The pressure sensor 4 obtains the fluid pressure in the fixed socket 20. At the same time, the pressure sensor 4 inserted into the fixed socket 20 can also realize the rapid positioning of the sound beam reflecting device 2, realize the reuse of the pressure sensor 4, and help to save costs while improving installation efficiency.

[0059] When it is necessary to simultaneously detect the fluid pressure and fluid temperature in fluid channel 11, such as Figures 1-3As shown, the main body 1 of the meter tube is provided with two sensor mounting interfaces 10, and the sound beam reflecting device 2 is provided with two fixed sockets 20. The two sensor mounting interfaces 10 correspond one-to-one with the two fixed sockets 20. One set of sensor mounting interfaces 10 and fixed sockets 20 is used to install temperature sensor 3, and the other set of sensor mounting interfaces 10 and fixed sockets 20 is used to install pressure sensor 4. With this configuration, when the fluid flows through the fluid channel 11, the fluid in the fluid channel 11 can enter the two fixed sockets 20. The temperature sensor 3 and the pressure sensor 4 can obtain the fluid temperature and fluid pressure in the fluid channel 11. At the same time, the temperature sensor 3 and the pressure sensor 4 are respectively plugged into the two fixed sockets 20, which can achieve a better positioning effect.

[0060] Understandably, depending on the needs of fluid detection, more sets of sensor mounting interfaces 10 and fixing sockets 20 can be set up, which can install more sensor elements and further expand the detection function of the ultrasonic water meter 100.

[0061] In some embodiments of this application, such as Figure 2 As shown, there are two sensor mounting interfaces 10, and the positions of the two sensor mounting interfaces 10 are both offset from the central axis of the meter tube body 1.

[0062] It should be noted that the sound beam reflecting device 2 is currently installed inside the fluid channel 11. When the fluid impacts the sound beam reflecting device 2, the sound beam reflecting device 2 will rotate in a direction perpendicular to its own axis, thereby causing wear between the sound beam reflecting device 2 and the meter tube body 1. This will not only reduce the service life of the ultrasonic water meter 100, but also lead to a decrease in measurement accuracy.

[0063] Based on this, refer to Figure 2 As shown, there are two sensor mounting interfaces 10, and the positions of both sensor mounting interfaces 10 are offset from the central axis of the meter tube body 1. Accordingly, as... Figure 3 As shown, the two fixed sockets 20 correspond one-to-one with the two sensor mounting interfaces 10. The positions of the two fixed sockets 20 are offset from the central axis of the meter tube body 1. For example, the two fixed sockets 20 are located on one side of the central axis of the meter tube body 1.

[0064] Assuming one set of sensor mounting interfaces 10 and fixing sockets 20 is used to mount temperature sensor 3, and the other set of sensor mounting interfaces 10 and fixing sockets 20 is used to mount pressure sensor 4, when a portion of temperature sensor 3 passes through the corresponding sensor mounting interface 10 and is inserted into the corresponding fixing socket 20, and a portion of pressure sensor 4 passes through the corresponding sensor mounting interface 10 and is inserted into the corresponding fixing socket 20, temperature sensor 3 and pressure sensor 4 can form two constraint points in the sound beam reflecting device 2. Both constraint points are offset from the central axis of the meter tube body 1. When water flow impacts and attempts to rotate the sound beam reflecting device 2, the torque generated by the water flow impact will be transmitted to these two constraint points. One constraint point will be subjected to tension (or pressure), and the other constraint point will be subjected to pressure (or tension). These two forces will form a counter-torque (equal in magnitude and opposite in direction) against rotation. It can be understood that a "lever" against rotation is formed on the sound beam reflecting device 2, thereby effectively locking the rotational degree of freedom of the sound beam reflecting device 2. This design reduces wear between the sound beam reflection device 2 and the meter tube body 1, which not only extends the service life of the ultrasonic water meter 100 but also improves measurement accuracy.

[0065] In some embodiments of this application, such as Figure 2 As shown, the two sensor mounting interfaces 10 are staggered off-center from the central axis of the meter tube body 1. That is, the two sensor mounting interfaces 10 are located on both sides of the central axis of the meter tube body 1. Optionally, the two sensor mounting interfaces 10 are spaced apart along the axial direction of the meter tube body 1. With this arrangement, the distance between the two constraint points formed by the temperature sensor 3 and the pressure sensor 4 is longer, which increases the lever arm between the two constraint points. It can be understood that the larger the lever arm between the two constraint points, the greater the counter torque generated by the sound beam reflecting device 2, and the stronger the resistance of the sound beam reflecting device 2 to rotation, which is beneficial to further improve the service life and measurement accuracy of the ultrasonic water meter 100.

[0066] In some embodiments of this application, such as Figure 2 , Figure 6 and Figure 7 As shown, at least two sensor mounting interfaces 10 are provided, and the central axes of the multiple sensor mounting interfaces 10 are arranged in parallel.

[0067] Specifically, the central axis of the multiple sensor mounting interfaces 10 extends along the first direction X, which is perpendicular to the axial direction of the meter tube body 1. For example, when there are two sensor mounting interfaces 10, when part of the temperature sensor 3 passes through the corresponding sensor mounting interface 10 and is inserted into the corresponding fixed socket 20, and part of the pressure sensor 4 passes through the corresponding sensor mounting interface 10 and is inserted into the corresponding fixed socket 20, the temperature sensor 3 and the pressure sensor 4 form two constraint points on the sound beam reflecting device 2 that are perpendicular to the axial direction of the meter tube body 1, thereby achieving a better constraint effect and further improving the ability of the sound beam reflecting device 2 to resist rotation.

[0068] In some embodiments of this application, such as Figure 3 and Figure 5 As shown, the sound beam reflecting device 2 includes a fixing member 21 and two ultrasonic reflectors 23. The fixing member 21 is provided with a fixing socket 20, and the two ultrasonic reflectors 23 are disposed on both sides of the fixing member 21 along the axial direction of the fixing member 21.

[0069] Specifically, such as Figure 3 and Figure 5 As shown, the fixing socket 20 of the fixing member 21 is used for the insertion and assembly of the sensor element to achieve the positioning and installation of the fixing member 21. Furthermore, two ultrasonic reflectors 23 are fixedly installed on both sides of the fixing member 21. Both ultrasonic reflectors 23 are inclined. For example, the two ultrasonic reflectors 23 can be inclined at 30°, 45°, 60°, etc., to ensure that the two ultrasonic reflectors 23 are arranged relative to each other.

[0070] Furthermore, each of the two ultrasonic reflectors 23 is respectively provided with an ultrasonic transducer (not shown in the figure). For example, the meter tube body 1 is provided with a first mounting hole and a second mounting hole. The first mounting hole is used to fix the first ultrasonic transducer. It can be understood that the first ultrasonic transducer is set opposite to one of the ultrasonic reflectors 23. The second mounting hole is used to fix the second ultrasonic transducer. It can be understood that the second ultrasonic transducer is set opposite to the other ultrasonic reflector 23. With this arrangement, the ultrasonic waves emitted by the first ultrasonic transducer can be received by the second ultrasonic transducer after being reflected by the first ultrasonic reflector 23 and the second ultrasonic reflector 23, respectively. Then, the flow rate of the fluid flowing through the ultrasonic water meter 100 is measured according to the ultrasonic propagation time difference, thus realizing the fluid flow detection function of the ultrasonic water meter 100.

[0071] In some embodiments of this application, the sound beam reflecting device 2 further includes two mounting plates 24. Along the axial direction of the fixing member 21, the two mounting plates 24 are disposed at both ends of the fixing member 21, and each ultrasonic reflector 23 is detachably disposed on the corresponding mounting plate 24.

[0072] Specifically, along the axial direction of the fastener 21, two mounting plates 24 are fixedly installed at both ends of the fastener 21. The fixing and installation methods include, but are not limited to, snap-fit. Furthermore, each ultrasonic reflector 23 can be detachably mounted on the corresponding mounting plate 24. With this configuration, the ultrasonic reflector 23 can be constructed as a modular structure, which allows for replacement as needed and helps reduce material waste.

[0073] In some embodiments of this application, such as Figures 5-7 As shown, a portion of the outer peripheral surface of the fixing member 21 and the inner peripheral surface of the meter tube body 1 together form a slow-flow cavity 5. The fixing member 21 has a first flow channel 22, which is connected to the fluid channel 11. The slow-flow cavity 5 is connected to the sensor mounting interface 10, and the slow-flow cavity 5 is also connected to the first flow channel 22 through the fixing socket 20.

[0074] Specifically, the fixing member 21 has a first flow channel 22, which is connected to the fluid channel 11. This arrangement is as follows: Figure 5 As shown, the inlet 111 is connected to the outlet 112 through the first flow channel 22. That is, when the fluid flows into the fluid channel 11 through the inlet 111, the fluid in the fluid channel 11 flows through the first flow channel 22 and is discharged from the outlet 112 of the fluid channel 11. Optionally, the first flow channel 22 extends along the axial direction of the instrument tube body 1.

[0075] The fluid channel 11 and the first flow channel 22 adopt a coaxial straight design. When the fluid flows in from the inlet 111 and out from the outlet 112, the flow path is the shortest and there is no sudden change in flow direction. This setting can significantly reduce fluid resistance and pressure loss, and ensure smooth and efficient flow. At the same time, the straight flow channel can maintain the fluid kinetic energy balance, avoid turbulence or cavitation, greatly improve the metering accuracy, and also enhance the uniformity of structural pressure bearing, which is conducive to extending the service life of the ultrasonic water meter 100.

[0076] Furthermore, the fixed socket 20 is connected to the first flow channel 22. When the sensor element (such as the temperature sensor 3 and the pressure sensor 4) directly detects the fluid in the first flow channel 22 or the fluid channel 11, the data detected by the sensor element is prone to large errors due to the turbulence, which results in poor detection accuracy of the sensor element installed in the water meter.

[0077] Based on this, the ultrasonic water meter 100 in this application is provided with a slow-flow cavity 5 for a stable water flow environment. The slow-flow cavity 5 is formed by a portion of the outer peripheral surface of the fixing member 21 and the inner peripheral surface of the meter tube body 1. Furthermore, the sensor mounting interface 10 is connected to the slow-flow cavity 5 and is used to install the sensor element. When the fluid flows into the slow-flow cavity 5 from the first flow channel 22 through the fixing port 20, the high speed and unstable flow will be buffered and smoothed. The fluid tends to be stable in the slow-flow cavity 5, and the flow velocity distribution becomes more uniform. When the water flow after being stabilized in the slow-flow cavity 5 flows to the sensor element, the flow state is closer to the ideal state (laminar flow or stable turbulent flow). At the same time, the turbulence in the first flow channel 22 is also difficult to affect the slow-flow cavity 5. The fluid accumulated in the slow-flow cavity 5 is equivalent to a water storage tank. In this way, by forming a stable water flow environment in the slow-flow cavity 5, it is beneficial to reduce the measurement error caused by flow velocity fluctuations, impacts or vortices, so that the sensor element has higher measurement accuracy under various flow rates.

[0078] In order to enable those skilled in the art to better understand this solution, such as Figure 1 and Figure 2 As shown, two sensor mounting interfaces 10 are provided on the main body 1 of the meter tube. One sensor mounting interface 10 is used to install the temperature sensor 3, and the other sensor mounting interface 10 is used to install the pressure sensor 4. With this configuration, when the fluid flows through the first flow channel 22, the fluid in the first flow channel 22 can enter the slow flow chamber 5. The temperature sensor 3 and the pressure sensor 4 can obtain the fluid temperature and fluid pressure in the slow flow chamber 5. Since a stable water flow environment is formed in the slow flow chamber 5, it is beneficial to improve the detection accuracy of the temperature sensor 3 and the pressure sensor 4.

[0079] In summary, according to the ultrasonic water meter 100 proposed in the embodiments of this application, when a portion of the fluid flows into the slow-flow cavity 5 from the first flow channel 22, since the slow-flow cavity 5 is connected to the sensor mounting interface 10, the sensor element installed in the sensor mounting interface 10 can detect the fluid parameters in the slow-flow cavity 5. At this time, the slow-flow cavity 5 is equivalent to a water storage tank, and a stable water flow environment is formed in the slow-flow cavity 5 by accumulating fluid. This setting can reduce the impact of turbulence on the detection accuracy of the sensor element and is beneficial to improving the detection accuracy of the sensor element.

[0080] In some embodiments of this application, such as Figure 3 , Figure 6 and Figure 7 As shown, the outer peripheral surface of the fastener 21 is provided with reinforcing ribs 211, and the reinforcing ribs 211 extend along the axial direction of the fastener 21.

[0081] Specifically, such as Figure 3As shown, the outer peripheral surface of the fastener 21 is provided with reinforcing ribs 211, and the reinforcing ribs 211 extend along the axial direction of the fastener 21. In this way, without increasing the wall thickness of the fastener 21, the bending resistance and compressive strength of the fastener 21 in the axial direction can be improved, thereby ensuring the structural strength of the fastener 21 while improving the stability of the fastener 21 within the main body 1 of the meter tube.

[0082] The reinforcing rib 211 can be positioned within the flow-retarding cavity 5 to divide it into multiple sub-flow-retarding cavities. The reinforcing rib 211 has a guide groove connecting adjacent sub-flow-retarding cavities. This arrangement improves the structural strength of the fixing member 21 while avoiding obstruction of the fluid within the flow-retarding cavity 5. When fluid enters one of the sub-flow-retarding cavities, it flows sequentially into each sub-flow-retarding cavity along the guide groove, thereby reducing the obstruction of the reinforcing rib 211 and further improving the stability of fluid flow.

[0083] In some embodiments of this application, such as Figure 3 , Figure 6 and Figure 7 As shown, there are multiple reinforcing ribs 211, which are arranged at intervals along the circumference of the fastener 21.

[0084] Specifically, the spaced arrangement of the reinforcing ribs 211 helps to evenly disperse the impact stress of the water flow. By dispersing the stress, it can avoid local deformation of the fixing part 21 (such as unilateral depression), which helps to enhance the radial deformation resistance of the fixing part 21 and ensure the positioning accuracy of the ultrasonic reflector. In addition, the multiple contact between the reinforcing ribs 211 and the inner wall of the meter tube body 1 will also generate high frictional resistance, which helps to further suppress the rotational wear of the fixing part 21 caused by the water flow torque.

[0085] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0086] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0087] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

[0088] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An ultrasonic water meter, comprising a meter tube body (1), characterized in that, At least one sensor mounting interface (10) is provided on the main body (1) of the meter tube, and a sound beam reflecting device (2) is provided on the fluid channel (11) inside the main body (1). A fixing socket (20) is provided on the sound beam reflecting device (2) at the position corresponding to the sensor mounting interface (10).

2. The ultrasonic water meter according to claim 1, characterized in that, The sensor mounting interface (10) is used to install a sensor element for detecting fluid parameters in the fluid channel (11). A portion of the sensor element passes through the sensor mounting interface (10) and is inserted into the fixing socket (20).

3. The ultrasonic water meter according to claim 1 or 2, characterized in that, There are two sensor mounting interfaces (10), and the positions of the two sensor mounting interfaces (10) are both offset from the central axis of the main body (1) of the meter tube.

4. The ultrasonic water meter according to claim 3, characterized in that, The two sensor mounting interfaces (10) are staggered off the central axis of the meter tube body (1).

5. The ultrasonic water meter according to claim 1 or 2, characterized in that, The sensor mounting interface (10) is provided in at least two ways, and the central axes of the multiple sensor mounting interfaces (10) are arranged in parallel.

6. The ultrasonic water meter according to claim 1, characterized in that, The sound beam reflecting device (2) includes a fixing member (21) and two ultrasonic reflectors (23). The fixing member (21) is provided with the fixing socket (20). Along the axial direction of the fixing member (21), the two ultrasonic reflectors (23) are disposed on both sides of the fixing member (21).

7. The ultrasonic water meter according to claim 6, characterized in that, The sound beam reflecting device (2) further includes two mounting plates (24). Along the axial direction of the fixing member (21), the two mounting plates (24) are disposed at both ends of the fixing member (21), and each ultrasonic reflector (23) is detachably disposed on the corresponding mounting plate (24).

8. The ultrasonic water meter according to claim 6, characterized in that, A portion of the outer peripheral surface of the fixing member (21) and the inner peripheral surface of the meter tube body (1) together form a slow-flow cavity (5). The fixing member (21) has a first flow channel (22), which is connected to the fluid channel (11). The slow-flow cavity (5) is connected to the sensor mounting interface (10), and the slow-flow cavity (5) is also connected to the first flow channel (22) through the fixing socket (20).

9. The ultrasonic water meter according to claim 6, characterized in that, The outer peripheral surface of the fastener (21) is provided with reinforcing ribs (211), and the reinforcing ribs (211) extend along the axial direction of the fastener (21).

10. The ultrasonic water meter according to claim 9, characterized in that, There are multiple reinforcing ribs (211), and the multiple reinforcing ribs (211) are arranged at intervals along the circumference of the fastener (21).

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