Ultrasonic water meter pipe section structure and ultrasonic water meter
By adopting a series flow channel design and an inner liner clamping structure in the ultrasonic water meter, the problems of pressure loss and processing difficulty caused by the installation method of the reflector are solved, thereby reducing costs and improving flow field stability, and ensuring measurement accuracy and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING SONICLION TECHNOLOGY CO LTD
- Filing Date
- 2026-03-31
- Publication Date
- 2026-05-29
Smart Images
Figure CN122108285A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ultrasonic measurement technology, and more specifically to an ultrasonic water meter pipe section structure and an ultrasonic water meter. Background Technology
[0002] Ultrasonic water meters are widely used in flow measurement due to their advantages such as high measurement accuracy, wide range, and no mechanical wear. Existing ultrasonic water meters typically employ a pipe section structure, using reflectors within the pipe section to allow ultrasonic waves to propagate along a specific path between the transmitting and receiving probes, and then calculating the fluid velocity using the time-of-flight method.
[0003] Regarding the installation methods of reflectors, there are several typical solutions in the prior art. For example, as described in Chinese Patent CN202421082020.3, the reflector is installed on the axis of the pipe section. Although this method can achieve ultrasonic wave reflection, it is prone to causing significant pressure loss and can easily lead to blockage by foreign objects. Another method is to directly fix the reflector to the inner wall of the pipe section. This method requires high precision in the pipe section processing, increasing manufacturing costs. In addition, there are solutions that install the reflector on the inner liner pipe. However, to ensure the ultrasonic wave reflection path, the transmitting and receiving probes need to be tilted. This not only increases the processing difficulty of the pipe section but also easily forms eddies inside the pipe section, adversely affecting the stability of the flow field.
[0004] Therefore, how to effectively reduce pressure loss, simplify processing technology and control manufacturing costs while ensuring reliable fixation of the reflector has become a technical problem that needs to be solved in the existing ultrasonic water meter pipe section structure. Summary of the Invention
[0005] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.
[0006] To at least partially solve the above problems, this invention proposes an ultrasonic water meter pipe section structure, connected in series with a flow channel to measure the flow velocity of fluid flowing through the channel. The ultrasonic water meter pipe section structure includes: a pipe body connected in series at both ends of the flow channel, forming an inlet and an outlet respectively; a first mounting through hole and a second mounting through hole are provided on the top of the pipe body; a transmitting probe for emitting ultrasonic waves; a receiving probe for receiving ultrasonic waves; an inner liner pipe nested inside the pipe body, with a third and a fourth through hole at its top; and a reflector, including a first reflector, a second reflector, and a central reflector; the first and second reflectors are respectively matched to the transmitting and receiving probes and located directly opposite them; the central reflector is located on the same side of the transmitting and receiving probes; the first and second reflectors are respectively fixed to the bottom surface of the inner liner pipe; the central reflector is fixed to the top of the inner liner pipe; the transmitting and receiving probes are fixedly installed in the first and second mounting through holes, with the emitting surfaces of the transmitting and receiving probes passing through the third and fourth through holes and flush with their inner surfaces.
[0007] Preferably, the cross-section of the inner liner tube is rectangular.
[0008] Preferably, the inner liner tube includes a first component and a second component, which are axially symmetrical.
[0009] Preferably, both the first reflector and the second reflector are circular, with two radially outward protruding snap-fit portions on their edges; the inner walls of the first and second components of the inner liner tube are provided with a first positioning hole and a second positioning hole; the snap-fit portions are embedded in the corresponding positioning holes.
[0010] Preferably, the central reflector is rectangular in shape; the inner walls of the first and second components of the inner liner tube are provided with a third slot and a fourth slot; the central reflector is inserted into the corresponding slot.
[0011] The beneficial effects of this solution are as follows: The ultrasonic water meter pipe section structure proposed in this solution has a W-shaped sound channel design. The transducer is installed perpendicular to the pipe body, and the reflector is installed on the inner liner pipe. Different snap-fit structures are set on the inner liner pipe, which simplifies the installation process, reduces costs, and also provides a reflection effect.
[0012] Preferably, a radial sealing structure is provided between the inner liner tube and the tube body; the radial sealing structure includes an annular bearing portion and an elastic sealing ring disposed on the outer wall of the inner liner tube; an annular groove is formed on the surface of the annular bearing portion, and the elastic sealing ring is embedded in the annular groove.
[0013] The beneficial effects of this solution: The ultrasonic water meter pipe section structure proposed in this solution, through the setting of a radial sealing structure, plays the role of fixing the inner liner pipe.
[0014] Preferably, it also includes a flow-rectifying screen, which is installed at the inlet and / or outlet of the pipe body.
[0015] The beneficial effects of this solution are as follows: The ultrasonic water meter pipe section structure proposed in this solution improves the flow field distribution and enhances the measurement accuracy by setting rectifier grids at the inlet and / or outlet of the pipe section.
[0016] Preferably, it also includes a transmitting probe pressure plate and a receiving probe pressure plate, which are fixed to the tube body by bolts.
[0017] Preferably, it also includes a PCB box, in which a PCB board is installed; a portion of the transmitting probe pressure plate and the receiving probe pressure plate are inserted into the PCB box; the transmitting probe and the receiving probe are electrically connected to the PCB board respectively.
[0018] The beneficial effects of this solution are as follows: The ultrasonic water meter pipe section structure proposed in this solution fixes the transmitting and receiving probes in the pipe section through the transmitting probe pressure plate and the receiving probe pressure plate, which also takes into account the fixation of the PCB box, achieving a dual-purpose effect and reducing costs; the connection method of the transmitting and receiving probes to the PCB board separately also avoids signal interference.
[0019] An ultrasonic water meter includes an ultrasonic water meter pipe section structure as described in any one of the above claims.
[0020] The beneficial effects of this solution are as follows: The ultrasonic water meter proposed in this solution improves the positioning accuracy of the reflector and ensures measurement consistency by comprehensively optimizing various aspects such as the installation method of the reflector, the structure of the inner liner tube, the fixing method of the probe, the sealing structure, and the flow rectifier grid. It also optimizes the probe installation method, reduces eddy currents, improves the stability of the flow field, reduces pressure loss, and comprehensively improves the product performance and reliability. Attached Figure Description
[0021] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention. Attached Figure
[0022] Figure 1 This is an exploded view of an ultrasonic water meter pipe section structure proposed in this invention. Figure 2 This is a cross-sectional view of an ultrasonic water meter pipe section structure proposed in this invention. Figure 3 This diagram shows the connection between the transmitting probe plate and the receiving probe plate and the PCB box.
[0023] In the picture: 1. Pipe body 2. First mounting through hole 3. Second mounting through hole; 4. Transmitting probe 5. Receiving probe 6. Inner liner tube 7. Third through hole; 8. Fourth through hole 9. First reflector; 10. Second reflector 11. Central reflector 12. First component 13. Second component; 14. First positioning hole 15. Second positioning hole; 16. Third slot 17. Fourth slot; 18. Annular bearing part 19. Elastic sealing ring; 20. Rectifying grille 21. Transmitter probe pressure plate; 22. Receiver probe pressure plate 23. PCB box 24. PCB board Detailed Implementation
[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.
[0025] To fully understand the present invention, a detailed description will be set forth in the following description. It is obvious that the implementation of embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below; however, in addition to these detailed descriptions, the present invention may have other embodiments.
[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.
[0027] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."
[0028] It should be noted that the terms “up,” “down,” “front,” “back,” “left,” “right,” “inner,” “outer,” and similar expressions used in this article are for illustrative purposes only and are not intended to be restrictive.
[0029] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.
[0030] Example 1 Figure 1 This is an exploded view of an ultrasonic water meter pipe section structure proposed in this invention. Figure 2 This is a cross-sectional view of an ultrasonic water meter pipe section structure proposed in this invention, as shown below. Figure 1 and Figure 2 As shown, this invention proposes an ultrasonic water meter pipe section structure, connected in series with a flow channel to measure the flow velocity of fluid flowing through the channel. The ultrasonic water meter pipe section structure includes: a pipe body 1, connected in series at both ends of the flow channel to form an inlet and an outlet respectively; a first mounting through hole 2 and a second mounting through hole 3 are provided on the top of the pipe body 1; a transmitting probe 4 for transmitting ultrasonic waves; a receiving probe 5 for receiving ultrasonic waves; an inner liner 6, nested inside the pipe body, with a third through hole 7 and a fourth through hole 8 at its top; and a reflector, including a first reflector 9, a second reflector 10, and a central reflector 11. The first reflector 9 and the second reflector 10 are respectively matched with the transmitting probe 4 and the receiving probe 5, and are located directly opposite the transmitting probe 4 and the receiving probe 5; the central reflector 11 is located on the same side of the transmitting probe 4 and the receiving probe 5; the first reflector 9 and the second reflector 10 are respectively fixed to the bottom surface of the inner liner tube 6; the central reflector 11 is fixed to the top of the inner liner tube 6; the transmitting probe 4 and the receiving probe 5 are fixedly installed in the first mounting through hole 2 and the second mounting through hole 3, and the transmitting surfaces of the transmitting probe 4 and the receiving probe 5 pass through the third through hole 7 and the fourth through hole 8 and are flush with the inner surface.
[0031] In this embodiment, both the transmitting probe 4 and the receiving probe 5 are transducers, but other sensors can also be selected according to the actual situation.
[0032] In this embodiment, the inner liner tube 6 has a rectangular cross-section. The inner liner tube 6 comprises two parts, namely a first component 12 and a second component 13. The first component 12 and the second component 13 are axially symmetrical to avoid mixing during installation.
[0033] In this embodiment, both the first reflector 9 and the second reflector 10 are in sheet form, maintaining the same shape and size to reduce processing costs and lower identification costs during assembly. Each of the first reflector 9 and the second reflector 10 has two radially outward-protruding snap-fit portions on its edges. The inner walls of the first component 12 and the second component 13 of the inner liner tube 6 are provided with a first positioning hole 14 and a second positioning hole 15. The two snap-fit portions of the first reflector 9 and the second reflector 10 are embedded in the corresponding positioning holes for fixation. The reflectors are made of metal and their surfaces can be polished. The central reflector 11 is rectangular in shape. The inner walls of the first component 12 and the second component 13 of the inner liner tube 6 are provided with a third slot 16 and a fourth slot 17. A portion of the central reflector 11 is inserted into the third slot 16, and a portion into the fourth slot 17. The central reflector is made of metal and its surface can be polished; the other side can be frosted for identification. All the shapes and materials of the reflectors and reflectors can be modified according to actual needs and are not limited to the shapes and materials mentioned above. The above fixing method can ensure that the reflector or reflective sheet is firmly fixed on the inner liner tube 6, preventing the reflector or reflective sheet from being washed away by the impact of flowing water. It also takes into account the need for convenient installation and reduced processing costs.
[0034] This solution proposes an ultrasonic water meter pipe section structure with a W-shaped sound channel. The transducer is installed perpendicular to the pipe body, and the reflector is installed on the inner liner. Different snap-fit structures are set on the inner liner, which simplifies the installation process, reduces costs, and improves reflectivity and enhances signal strength. Example
[0035] This invention proposes an ultrasonic water meter pipe section structure, connected in series with a flow channel to measure the flow velocity of fluid flowing through the channel. The ultrasonic water meter pipe section structure includes: a pipe body 1, connected in series at both ends of the flow channel to form an inlet and an outlet respectively; a first mounting through hole 2 and a second mounting through hole 3 are provided on the top of the pipe body 1; a transmitting probe 4 for transmitting ultrasonic waves; a receiving probe 5 for receiving ultrasonic waves; an inner liner 6, nested inside the pipe body, with a third through hole 7 and a fourth through hole 8 at its top; and a reflector, including a first reflector 9, a second reflector 10, and a central reflector 11; the first... Reflector 9 and second reflector 10 are respectively matched with transmitting probe 4 and receiving probe 5, and are located directly opposite transmitting probe 4 and receiving probe 5; the central reflector 11 is located on the same side of transmitting probe 4 and receiving probe 5; the first reflector 9 and second reflector 10 are respectively fixed to the bottom surface of inner liner tube 6; the central reflector 11 is fixed to the top of inner liner tube 6; transmitting probe 4 and receiving probe 5 are fixedly installed in the first mounting through hole 2 and the second mounting through hole 3, and the emitting surfaces of transmitting probe 4 and receiving probe 5 pass through the third through hole 7 and the fourth through hole 8 and are flush with the inner surface.
[0036] In this design, a radial sealing structure is provided between the inner liner 6 and the pipe body 1. This radial sealing structure includes an annular support portion 18 and an elastic sealing ring 19 disposed on the outer wall of the inner liner. An annular groove is formed on the surface of the annular support portion 18, and the elastic sealing ring 19 is embedded within the annular groove. This radial sealing structure effectively fixes the inner liner. Furthermore, the transducer passes through the first mounting through-hole 2 and the third through-hole 7, which also helps to fix the inner liner. The combined effect of these two structures ensures that the inner liner 7 remains stationary. The elastic sealing ring 19, secured within the annular groove, also prevents movement. This radial sealing structure ensures that the inner liner 6 will not move with the water flow, thus preventing any impact on metering.
[0037] The above is only the sealing method of this embodiment. This patent is not limited to the above sealing method, and the sealing method can be adjusted according to actual needs. Example
[0038] This invention proposes an ultrasonic water meter pipe section structure, connected in series with a flow channel to measure the flow velocity of fluid flowing through the channel. The ultrasonic water meter pipe section structure includes: a pipe body 1, connected in series at both ends of the flow channel to form an inlet and an outlet respectively; a first mounting through hole 2 and a second mounting through hole 3 are provided on the top of the pipe body 1; a transmitting probe 4 for transmitting ultrasonic waves; a receiving probe 5 for receiving ultrasonic waves; an inner liner 6, nested inside the pipe body, with a third through hole 7 and a fourth through hole 8 at its top; and a reflector, including a first reflector 9, a second reflector 10, and a central reflector 11; the first... Reflector 9 and second reflector 10 are respectively matched with transmitting probe 4 and receiving probe 5, and are located directly opposite transmitting probe 4 and receiving probe 5; the central reflector 11 is located on the same side of transmitting probe 4 and receiving probe 5; the first reflector 9 and second reflector 10 are respectively fixed to the bottom surface of inner liner tube 6; the central reflector 11 is fixed to the top of inner liner tube 6; transmitting probe 4 and receiving probe 5 are fixedly installed in the first mounting through hole 2 and the second mounting through hole 3, and the emitting surfaces of transmitting probe 4 and receiving probe 5 pass through the third through hole 7 and the fourth through hole 8 and are flush with the inner surface.
[0039] This solution also includes a rectifier grid 20, which can be installed at the inlet of the pipe, at the outlet, or at both the inlet and outlet. The rectifier grid 20 has a rectifying effect, which helps to improve metering accuracy. Example
[0040] This invention proposes an ultrasonic water meter pipe section structure, connected in series with a flow channel to measure the flow velocity of fluid flowing through the channel. The ultrasonic water meter pipe section structure includes: a pipe body 1, connected in series at both ends of the flow channel to form an inlet and an outlet respectively; a first mounting through hole 2 and a second mounting through hole 3 are provided on the top of the pipe body 1; a transmitting probe 4 for transmitting ultrasonic waves; a receiving probe 5 for receiving ultrasonic waves; an inner liner 6, nested inside the pipe body, with a third through hole 7 and a fourth through hole 8 at its top; and a reflector, including a first reflector 9, a second reflector 10, and a central reflector 11; the first... Reflector 9 and second reflector 10 are respectively matched with transmitting probe 4 and receiving probe 5, and are located directly opposite transmitting probe 4 and receiving probe 5; the central reflector 11 is located on the same side of transmitting probe 4 and receiving probe 5; the first reflector 9 and second reflector 10 are respectively fixed to the bottom surface of inner liner tube 6; the central reflector 11 is fixed to the top of inner liner tube 6; transmitting probe 4 and receiving probe 5 are fixedly installed in the first mounting through hole 2 and the second mounting through hole 3, and the emitting surfaces of transmitting probe 4 and receiving probe 5 pass through the third through hole 7 and the fourth through hole 8 and are flush with the inner surface.
[0041] This solution also includes a transmitting probe pressure plate 21 and a receiving probe pressure plate 22, which are fixed to the tube body by bolts, such as... Figure 1 As shown, the pressure plate has two threaded holes on its outer periphery, which are used to fix it to the first mounting through hole 2 and the second mounting through hole 3 on the tube body 1, respectively. The purpose of setting the pressure plate is to fix the transmitting probe 4 and the receiving probe 5, so as to ensure that the two probes do not move, thereby ensuring the measurement performance.
[0042] This solution also includes a PCB box 23, in which a PCB board 24 is installed; a portion of the transmitting probe pressure plate 21 and the receiving probe pressure plate 22 are inserted into the PCB box 23; the transmitting probe 4 and the receiving probe 5 are electrically connected to the PCB board 24 respectively. Figure 2 This diagram illustrates the connection between the transmitting probe plate and the receiving probe plate and the PCB box. A circular hole is formed in the center of the plate, and a protrusion on one side allows it to be inserted into the PCB box 23. The signal lines of the transmitting probe 4 and the receiving probe 5 pass through the circular hole and connect to the PCB, either by soldering or by insertion. The signal lines can be ordinary signal lines or shielded / FPC lines resistant to electromagnetic interference. This layout prevents the transmitting probe 4 and the receiving probe 5 from being affected by electromagnetic fields and also secures the PCB box 23.
[0043] This solution proposes an ultrasonic water meter pipe section structure. By using a transmitting probe pressure plate and a receiving probe pressure plate, the transmitting probe and receiving probe are fixed in the pipe section, which also serves to fix the PCB box, achieving a dual-purpose effect and reducing costs. The connection method between the transmitting probe and the receiving probe and the PCB board respectively also avoids signal interference. Example
[0044] An ultrasonic water meter includes an ultrasonic water meter pipe section structure as described in any of the above embodiments.
[0045] During the installation of the ultrasonic water meter pipe section, the first step is to assemble the inner liner pipe. The first reflector 9, the second reflector 10, and the central reflector 11 are respectively installed into the first component 12 and the second component 13 of the inner liner pipe. Then, the elastic sealing ring 19 is embedded in the annular groove of the annular bearing part 18. Generally, two elastic sealing rings are selected, which can not only play a fixing role, but also reduce costs. The second step is to insert the assembled inner liner into the tube body 1, ensuring that the third through hole 7 and the first mounting through hole 2 are aligned, and the fourth through hole 8 and the second mounting through hole 3 are aligned. The third step is to install the transmitting probe 4 and the receiving probe 5. The fourth step is to assemble the transmitting probe pressure plate 21 and the receiving probe pressure plate 22 with the PCB box, and then fix them to the tube section assembled in the third step with bolts. During this process, the signal lines of the transmitting probe 4 and the receiving probe 5 need to be passed through the central circular holes of the transmitting probe pressure plate 21 and the receiving probe pressure plate 22 and introduced into the PCB box. The fifth step is to install the rectifier grille 20 as required. The sixth step is to put the PCB into the PCB box and connect the transmitting probe 4 and the receiving probe 5 to the PCB by soldering or plugging.
[0046] This embodiment is not limited to the above installation steps. Some steps may be adjusted or added according to the actual situation. Of course, some tooling may be needed in this process. The structure or function of the tooling is not within the scope of protection of this patent, so it will not be described in detail.
[0047] This solution proposes an ultrasonic water meter that improves the positioning accuracy of the reflector and ensures measurement consistency through comprehensive optimization of various aspects, including the installation method of the reflector, the structure of the inner liner tube, the fixing method of the probe, the sealing structure, and the flow rectifier grid. It also optimizes the probe installation method, reduces eddies, improves flow field stability, and reduces pressure loss, thereby comprehensively improving the product's performance and reliability.
[0048] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.
Claims
1. An ultrasonic water meter pipe section structure, comprising a flow channel connected in series to measure the flow velocity of fluid flowing through the channel, characterized in that, The structure of the ultrasonic water meter pipe section includes: A pipe body is connected in series at both ends of the flow channel to form an inlet and an outlet respectively. A first installation through hole and a second installation through hole are provided on the top of the pipe body. A transmitting probe, used to emit ultrasonic waves; A receiving probe, used to receive ultrasonic waves; The inner liner tube is nested inside the tube body, with a third and a fourth through hole at the top; The reflector includes a first reflector, a second reflector, and a central reflector; the first and second reflectors are respectively matched to the transmitting probe and the receiving probe, and are located directly opposite the transmitting probe and the receiving probe; the central reflector is located on the same side of the transmitting probe and the receiving probe. The first reflector and the second reflector are respectively fixed to the bottom surface of the inner liner tube; the central reflector is fixed to the top of the inner liner tube; The transmitting probe and the receiving probe are fixedly installed in the first mounting through hole and the second mounting through hole, and the transmitting surfaces of the transmitting probe and the receiving probe pass through the third through hole and the fourth through hole and are flush with the inner surface.
2. The ultrasonic water meter pipe section structure according to claim 1, characterized in that, The inner liner tube has a rectangular cross-section.
3. The ultrasonic water meter pipe section structure according to claim 2, characterized in that, The inner liner tube includes a first component and a second component, which are axially symmetrical.
4. The ultrasonic water meter pipe section structure according to claim 3, characterized in that, Both the first and second reflectors are circular, with two radially outward protruding snap-fit portions on their edges; the inner walls of the first and second components of the inner liner tube are provided with a first positioning hole and a second positioning hole; the snap-fit portions are embedded in the corresponding positioning holes.
5. The ultrasonic water meter pipe section structure according to claim 3 or 4, characterized in that, The central reflector is rectangular in shape; the inner walls of the first and second components of the inner liner tube are provided with a third and a fourth slot; the central reflector is inserted into the corresponding slot.
6. The ultrasonic water meter pipe section structure according to claim 1, characterized in that, A radial sealing structure is provided between the inner liner tube and the tube body; the radial sealing structure includes an annular bearing portion and an elastic sealing ring disposed on the outer wall of the inner liner tube; an annular groove is formed on the surface of the annular bearing portion, and the elastic sealing ring is embedded in the annular groove.
7. The ultrasonic water meter pipe section structure according to claim 1, characterized in that, It also includes a flow-rectifying bar, which is installed at the inlet and / or outlet of the pipe body.
8. The ultrasonic water meter pipe section structure according to claim 1, characterized in that, It also includes a transmitting probe pressure plate and a receiving probe pressure plate, which are fixed to the tube body by bolts.
9. The ultrasonic water meter pipe section structure according to claim 8, characterized in that, It also includes a PCB box, in which a PCB board is installed; a portion of the transmitting probe pressure plate and the receiving probe pressure plate are inserted into the PCB box; the transmitting probe and the receiving probe are electrically connected to the PCB board respectively.
10. An ultrasonic water meter, characterized in that, The ultrasonic water meter pipe section structure includes any one of claims 1 to 9.