Ultrasonic water meter pipe section with self-cleaning function

Abstract

The invention relates to the technical field of ultrasonic reflection type measurement, and discloses an ultrasonic water meter pipe section with a self-cleaning function, which comprises a pipe body, and a reflection adjusting mechanism matched with a secondary reflector plate and an ultrasonic transducer is arranged in the pipe body; through the arranged adjusting assembly, the two functional plates rotate relatively, on one hand, the inflection point position of an inverted M-shaped sound wave propagation path is continuously changed, a multi-dimensional and multi-point ultrasonic path detection network is formed, and the precision of in-pipe flow measurement is improved; on the other hand, gap openings with different opening degrees are formed between the functional plate and the inner wall of the pipe body in the rotating process, auxiliary adjustment of the flow speed of water flow in the pipe is achieved by adjusting the size of the gap openings, and therefore the water flow control requirements under different working conditions are met; the cleaning assembly conducts self-cleaning treatment on the first-stage reflector plate by means of rotation of the functional plate, no extra power source is needed, the energy consumption and fault points of the device are reduced, a detachable brush roller is convenient to maintain and replace in the later period, and the service life of the device is further prolonged.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic reflection measurement technology, specifically to an ultrasonic water meter pipe section with self-cleaning function. Background Technology

[0002] Ultrasonic water meters are widely used in water supply metering, industrial fluid measurement, and other fields due to their advantages such as high measurement accuracy, no mechanical wear, and long service life. Their core working principle involves emitting sound waves through an ultrasonic transducer, calculating the water flow velocity by utilizing the time difference between the downstream and upstream propagation of the sound waves in the water flow, and then converting this into the flow rate.

[0003] However, existing ultrasonic water meters still have many technical pain points in practical applications: First, the sound wave propagation path is mostly a fixed single path, which is easily affected by the uneven flow field of water in the pipe, resulting in single measurement data and insufficient accuracy; Second, the reflection structure set in the pipe is mostly fixed, which causes pressure loss in the water flow in the pipe and cannot be adjusted, making it unsuitable for various working conditions; Third, the reflector is in the water flow environment for a long time, and scale, silt and other foreign objects are easily attached to the surface, which leads to a decrease in sound wave reflection efficiency, further reducing measurement accuracy and even causing equipment failure. Traditional ultrasonic water meters lack an effective self-cleaning mechanism and require manual disassembly and maintenance at regular intervals, which is costly and affects the continuity of metering.

[0004] Therefore, we provide an ultrasonic water meter pipe section with self-cleaning function to solve the above-mentioned technical problems. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an ultrasonic water meter pipe section with a self-cleaning function, which has the advantages of multi-point flow measurement, adjustable flow and pressure, and automatic cleaning of the reflector. It solves the problems of low accuracy of single measurement data, inability to quickly adjust and optimize water flow pressure, and inconvenience in cleaning the reflector.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: An ultrasonic water meter pipe section with self-cleaning function includes a pipe body, on which a secondary reflector and two ultrasonic transducers are installed, and a reflection adjustment mechanism that cooperates with the secondary reflector and ultrasonic transducers is provided inside the pipe body. The reflection adjustment mechanism includes an adjustment component and a cleaning component. The adjustment component includes two functional plates that rotate relative to each other inside the tube. The primary and secondary reflective plates on the functional plates, together with the ultrasonic transducer, form an inverted M-shaped sound wave propagation path. The adjustment component rotates relative to each other inside the tube through the two functional plates, so that the functional plates cooperate with the inner wall of the tube to form a variety of gap openings. The cleaning assembly includes a lifting column that is slidably connected to the tube body, a T-shaped slide member that is slidably connected to the function plate, a brush roller that is slidably connected to the primary reflector on the T-shaped slide member, and a nylon rope connecting the T-shaped slide member and the lifting column.

[0007] By using a reflection adjustment mechanism, the entire ultrasonic wave propagation path takes the form of a changing inverted M-shape. This solves the problems of unstable water flow field and large pressure loss in the water meter. Furthermore, by adjusting the rotation of the functional plate, multiple gaps are formed between the functional plate and the inner wall of the pipe, allowing for both measurement of water flow rate and control of the flow size. This also avoids the problem of single-point path detection data in traditional sound wave propagation paths. The angle-deflecting functional plate achieves multi-point path detection through the variable ultrasonic wave propagation path, taking the median value from the diverse data detected, thereby further improving the accuracy of measuring the fluid flow rate inside the pipe.

[0008] The controller intermittently controls the operation of the dual-axis geared motor, causing the two drive shafts to drive the two functional boards to rotate intermittently relative to each other through the linkage shaft, and periodically causing the functional boards to rotate one revolution. During the rotation of the functional boards, the T-shaped slider slides on the T-shaped slide groove of the functional board, so that the brush roller cleans the primary reflective sheet on the back of the functional board.

[0009] Preferably, the adjustment assembly further includes a sealing cover rotatably connected to the function plate, the tube body is rotatably connected to a linkage shaft, one end of the linkage shaft is connected to a linkage wheel, the side end of the tube body is connected to a dual-axis reduction motor, the output shaft of the dual-axis reduction motor is connected to a transmission shaft, and the transmission shaft is meshed with the linkage wheel of the linkage shaft through the transmission wheel.

[0010] Preferably, both ends of the functional plate are provided with rotating holes with grooves, and the sealing cover is rotatably connected to the rotating holes of the functional plate via a round shaft.

[0011] Preferably, the linkage shaft is rotatably connected to the tube body via a sealed bearing, and one end of the linkage shaft located inside the tube body is provided with a T-shaped insert shaft, which is engaged with the rotating hole of the functional board via the T-shaped insert shaft.

[0012] Preferably, the functional plate is disc-shaped, and a T-shaped sliding groove in the middle of the functional plate is provided. The T-shaped sliding member is slidably connected to the functional plate through the T-shaped sliding groove, and the brush roller is inserted into the sleeve of the T-shaped sliding member.

[0013] Preferably, the functional board has multiple mounting slots, and the primary reflector is installed in the mounting slots of the functional board.

[0014] Preferably, the adjusting assembly further includes a spring sleeved on the lifting column, a piston cylinder detachably installed on the tube body, the spring being located inside the piston cylinder, and one end of the nylon rope being connected to the hanging ring of the lifting column via a hook.

[0015] Preferably, the axial line of the lifting column is not on the same straight line as the center vertical line of the function plate, and the lifting column is located on one side of the center of the function plate.

[0016] Preferably, the upper end of the tube body is provided with a first mounting port, the ultrasonic transducer is installed in the first mounting port, a sealing plate is detachably connected to the first mounting port, the side end of the tube body is provided with a second mounting port, and the sealing cover is detachably connected to the second mounting port.

[0017] Preferably, a protective plate is installed on the pipe body.

[0018] (III) Beneficial Effects Compared with the prior art, the present invention provides an ultrasonic water meter pipe section with self-cleaning function, which has the following beneficial effects: 1. This ultrasonic water meter pipe section with self-cleaning function achieves dual adjustment functions through the relative rotation of two functional plates via an adjustable component. On the one hand, the angle deflection of the functional plates changes the posture of the primary reflector within the pipe, causing the inflection point of the inverted M-shaped sound wave propagation path to change continuously, forming a multi-dimensional, multi-point ultrasonic path detection network. This avoids the problem of single-point measurement data caused by traditional single-point path measurement, thereby further improving the accuracy of flow measurement within the pipe. On the other hand, the functional plates form gaps of different openings with the inner wall of the pipe during rotation. By adjusting the size of these gaps, the flow velocity within the pipe can be assisted in adjustment without affecting flow measurement, thus adapting to the water flow control requirements under different operating conditions.

[0019] 2. This ultrasonic water meter pipe section with self-cleaning function, through the set cleaning component, allows the T-shaped slider to slide on the T-shaped groove of the function plate during the rotation of the function plate. This allows the brush roller to clean the primary reflector on the back of the function plate while not affecting the ultrasonic reflection of the primary reflector on the upper part of the function plate. This prevents foreign objects from adhering to the primary reflector, avoiding the problem of inaccurate measurement caused by foreign objects adhering to the primary reflector. The cleaning component performs self-cleaning of the primary reflector by means of the rotation of the function plate, without the need for an additional power source, reducing equipment energy consumption and failure points. The detachable brush roller design facilitates later maintenance and replacement, further extending the service life of the equipment.

[0020] 3. The ultrasonic water meter pipe section with self-cleaning function adopts a modular integrated design for the reflection adjustment mechanism, which integrates the ultrasonic path adjustment and self-cleaning function of the first-stage reflector into the same mechanism, simplifying the overall structure; the design of the detachable sealing cover, sealing plate and protective plate on the pipe body makes it possible to carry out component inspection, calibration and replacement in the later stage without disassembling the entire pipe section, which significantly reduces maintenance costs and downtime. Attached Figure Description

[0021] Figure 1 This is a first perspective view of the present invention.

[0022] Figure 2 This is a second perspective view of the present invention.

[0023] Figure 3 This is an exploded view of the present invention.

[0024] Figure 4 This is another perspective view of the exploded view of the present invention.

[0025] Figure 5 This is a schematic diagram of the reflection adjustment mechanism of the present invention.

[0026] Figure 6 This is a schematic diagram of the cooperation between the sealing cover and the reflection adjustment mechanism of the present invention.

[0027] Figure 7 This is a schematic diagram of the reflection adjustment mechanism of the present invention from another perspective.

[0028] Figure 8 This is an exploded view of the cleaning component of the present invention.

[0029] Figure 9 This is a first cross-sectional view of the present invention.

[0030] Figure 10 This is a second cross-sectional view of the present invention.

[0031] Figure 11 This is a comparative schematic diagram of the deflection adjustment of the primary reflector sheet of the present invention.

[0032] In the picture: 1. Pipe body; 101. First mounting port; 102. Second mounting port; 103. Protective plate; 2. Reflection adjustment mechanism; 201. Functional panel; 2011. T-slot; 2012. Primary reflector; 2013. Rotary hole; 202. T-shaped sliding component; 203. Brush roller; 204. Nylon rope; 205. Lifting column; 206. Spring; 3. Ultrasonic transducer; 4. Sealing plate; 5. Secondary reflector; 6. Sealing cap; 601. Round shaft; 7. Piston cylinder; 8. Dual-shaft geared motor; 9. Drive shaft; 10. Linkage shaft. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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 invention.

[0035] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] This embodiment provides an ultrasonic water meter pipe section with self-cleaning function, which has the following technical features.

[0038] Please see Figures 1 to 11 , An ultrasonic water meter pipe section with self-cleaning function includes a pipe body 1, on which a secondary reflector 5 and two ultrasonic transducers 3 are installed, and a reflection adjustment mechanism 2 that cooperates with the secondary reflector 5 and the ultrasonic transducers 3 is provided inside the pipe body 1. The reflection adjustment mechanism 2 includes an adjustment component and a cleaning component. The adjustment component includes two functional plates 201 that rotate relative to each other inside the tube body 1. The primary reflector 2012 on the functional plate 201, together with the secondary reflector 5 and the ultrasonic transducer 3, forms an inverted M-shaped sound wave propagation path. The adjustment component rotates relative to each other inside the tube body 1 through the two functional plates 201, so that the functional plates 201 cooperate with the inner wall of the tube body 1 to form a variety of gap openings. The cleaning assembly includes a lifting column 205 that is slidably connected to the tube body 1, a T-shaped slider 202 that is slidably connected to the function plate 201, a brush roller 203 that is slidably connected to the primary reflector 2012 on the T-shaped slider 202, and a nylon rope 204 that is connected between the T-shaped slider 202 and the lifting column 205.

[0039] It should be noted that the cleaning component requires no additional power source, achieving self-cleaning by utilizing the rotational kinetic energy of the function plate 201, thus reducing equipment energy consumption and structural complexity. The function plate 201 has a T-shaped groove 2011 in the center, with an inverted T-shaped cross-section that matches the slider of the T-shaped slider 202, ensuring smooth sliding of the T-shaped slider 202 without jamming or deviation. The brush roller 203 is detachably inserted into the T-shaped slider 202 via a sleeve. The bristles of the brush roller 203 are made of a composite material of wear-resistant nylon filaments and flexible cleaning cotton, effectively removing scale, mud, and other accumulated dirt from the surface of the primary reflector 2012 without scratching the metal plating, ensuring that the reflective performance of the reflector is not affected by the cleaning process.

[0040] The power transmission and reset mechanism of the cleaning component is designed as follows: A spring 206 is sleeved on the outside of the lifting column 205. A piston cylinder 7 is detachably installed on the tube body 1 via a threaded connection. The spring 206 is built into the piston cylinder 7, forming an elastic reset structure. One end of the nylon rope 204 is connected to the hanging ring at the top of the lifting column 205 via a movable hook, and the other end is fixedly connected to the T-shaped slide 202. The axial line of the lifting column 205 is designed to be eccentrically arranged with the center perpendicular line of the function plate 201. The lifting column 205 is located on one side of the center of the function plate 201, so that the nylon rope 204 always maintains a reasonable tension angle during the rotation of the function plate 201.

[0041] The adjustment assembly also includes a sealing cover 6 rotatably connected to the function plate 201, a linkage shaft 10 rotatably connected to the tube body 1, a linkage wheel connected to one end of the linkage shaft 10, a dual-axis reduction motor 8 connected to the side end of the tube body 1, a transmission shaft 9 connected to the output shaft of the dual-axis reduction motor 8, and the transmission shaft 9 meshing with the linkage wheel of the linkage shaft 10 through the transmission wheel.

[0042] It should be noted that the adjustment component achieves dual adjustment functions through the relative rotation of the two functional plates 201: on the one hand, the angular deflection of the functional plate 201 can change the posture of the first-stage reflector 2012, so that the inflection point position of the inverted M-shaped sound wave propagation path changes continuously, forming a multi-dimensional, multi-point sound wave detection network; on the other hand, during the rotation of the functional plate 201, gaps with different openings are formed with the inner wall of the pipe body 1. By adjusting the size of the gap openings, the flow velocity of the water in the pipe can be assisted in the adjustment without affecting the flow measurement, adapting to the water flow control requirements under different working conditions.

[0043] Both ends of the function plate 201 are provided with rotating holes 2013 with grooves, and the sealing cover 6 is rotatably connected to the rotating holes 2013 of the function plate 201 via a round shaft 601.

[0044] The linkage shaft 10 is rotatably connected to the tube body 1 through a sealed bearing. One end of the linkage shaft 10 located inside the tube body 1 is provided with a T-shaped insert shaft. The linkage shaft 10 is engaged with the rotating hole 2013 of the function plate 201 through the T-shaped insert shaft.

[0045] To facilitate later maintenance and component replacement, the adjustment assembly is also designed with a convenient disassembly and assembly structure: a second mounting port 102 is provided on the side end of the tube body 1, and the sealing cover 6 is detachably connected to the second mounting port 102 by bolts. After removing the sealing cover 6, components such as the internal functional plate 201 and the first-level reflector 2012 can be inspected and repaired; a protective plate 103 is also fixedly installed on the tube body 1. The protective plate 103 is made of stainless steel and covers the outside of external transmission components such as the linkage shaft 10 and the transmission wheel. It can effectively prevent transmission failure caused by the impact of external debris and the accumulation of dust, while improving the safety of equipment operation.

[0046] The function plate 201 is disc-shaped, and a T-shaped slide groove 2011 in the middle of the function plate 201 is provided. The T-shaped slide 202 is slidably connected to the function plate 201 through the T-shaped slide groove 2011, and the brush roller 203 is inserted into the sleeve of the T-shaped slide 202.

[0047] The function board 201 has multiple mounting slots, and the primary reflector 2012 is installed in the mounting slots of the function board 201.

[0048] The adjustment assembly also includes a spring 206 sleeved on the lifting column 205, a piston cylinder 7 detachably installed on the tube body 1, the spring 206 being located inside the piston cylinder 7, and one end of the nylon rope 204 being connected to the hanging ring of the lifting column 205 via a hook.

[0049] The axial line of the lifting column 205 is not on the same straight line as the center vertical line of the function plate 201, and the lifting column 205 is located on one side of the center of the function plate 201.

[0050] The upper end of the tube body 1 is provided with a first mounting port 101, the ultrasonic transducer 3 is installed in the first mounting port 101, a sealing plate 4 is detachably connected to the first mounting port 101, the side end of the tube body 1 is provided with a second mounting port 102, and the sealing cover 6 is detachably connected to the second mounting port 102.

[0051] A protective plate 103 is installed on the pipe body 1.

[0052] Working principle: The controller intermittently controls the operation of the dual-axis geared motor 8, causing the two drive shafts 9 to drive the two functional plates 201 to rotate intermittently relative to each other through the linkage shaft 10. This causes the functional plates 201 to deflect at an angle within the tube body 1, resulting in the ultrasonic wave propagation path presenting a continuously changing inverted M-shape. The controller controls the dual-axis geared motor 8 to periodically drive the functional plates 201 to rotate one revolution. During the rotation of the functional plates 201, the T-shaped slider 202 slides on the T-shaped groove 2011 of the functional plates 201, causing the brush roller 203 to clean the primary reflector 2012 on the back of the functional plates 201, preventing foreign objects from adhering to the primary reflector 2012 and avoiding the problem of inaccurate measurement caused by foreign objects adhering to the primary reflector 2012. By using the reflection adjustment mechanism 2, the entire ultrasonic wave propagation path presents a changing inverted M-shape, which solves the problems of unstable water flow field and large pressure loss of water meter. At the same time, by adjusting the rotation of the functional plate 201, multiple gap openings are formed between the functional plate 201 and the inner wall of the pipe body 1, so as to measure the water flow rate and control the water flow size in the pipe at the same time. It also avoids the problem of single-point path detection caused by traditional ultrasonic wave propagation path. The deflectable functional plate 201 achieves multi-point path detection effect through the changeable ultrasonic wave propagation path, thereby obtaining a variety of measurement data values ​​and further improving the accuracy of measuring the fluid flow rate in the pipe.

[0053] In summary, this self-cleaning ultrasonic water meter pipe section achieves continuous transformation of the inverted M-shaped sound wave propagation path through the reflection adjustment mechanism 2, constructing a multi-point, multi-dimensional detection network. This solves the problems of single data and susceptibility to local flow field disturbances caused by the single fixed path detection of traditional ultrasonic water meters. At the same time, the inverted M-shaped path design extends the sound wave propagation distance and improves the correlation between flow velocity changes and propagation time difference.

[0054] The gap opening formed by the functional plate 201 and the inner wall of the pipe body 1 adopts a streamlined design. With the adjustable opening size, the flow cross section can be adaptively adjusted according to the water flow rate in the pipe. This avoids the obstruction of water flow by the fixed reflection structure in traditional ultrasonic water meters, thereby reducing pressure loss in the pipe. It is especially suitable for water supply pipeline systems that are sensitive to pressure loss.

[0055] The cleaning component uses the rotation of the function plate 201 to perform self-cleaning of the primary reflector 2012, eliminating the need for an additional power source and reducing equipment energy consumption and potential failure points. The U-shaped chute design ensures that the brush roller 203 can periodically clean the double-sided primary reflector 2012 on the function plate 201, and the elastic reset mechanism ensures that the cleaning action has good repeatability and stability. The detachable brush roller 203 design facilitates later maintenance and replacement, further extending the service life of the equipment.

[0056] The reflection adjustment mechanism 2 adopts a modular integrated design, which integrates path adjustment and self-cleaning function into the same mechanism, simplifying the overall structure. The design of the detachable sealing cover 6, sealing plate 4 and protective plate 103 on the pipe body 1 makes it possible to perform component maintenance, calibration and replacement in the later stage without disassembling the entire pipe section, which significantly reduces maintenance costs and downtime.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 limitations, 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.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic water meter pipe section with self-cleaning function, comprising a pipe body (1), characterized in that, The tube body (1) is equipped with a secondary reflector (5) and two ultrasonic transducers (3), and the tube body (1) is provided with a reflection adjustment mechanism (2) that cooperates with the secondary reflector (5) and the ultrasonic transducers (3). The reflection adjustment mechanism (2) includes an adjustment component and a cleaning component. The adjustment component includes two functional plates (201) that rotate relative to each other inside the tube body (1). The primary reflector (2012) on the functional plate (201) cooperates with the secondary reflector (5) and the ultrasonic transducer (3) to form an inverted M-shaped sound wave propagation path. The adjustment component rotates relative to each other inside the tube body (1) through the two functional plates (201), so that the functional plates (201) cooperate with the inner wall of the tube body (1) to form a variety of gap openings. The cleaning assembly includes a lifting column (205) slidably connected to the tube body (1), a T-shaped slide (202) slidably connected to the function plate (201), a brush roller (203) slidably connected to the T-shaped slide (202) and a primary reflector (2012), and a nylon rope (204) connecting the T-shaped slide (202) and the lifting column (205).

2. The ultrasonic water meter pipe section with self-cleaning function according to claim 1, characterized in that, The adjustment assembly also includes a sealing cover (6) rotatably connected to the function plate (201), a linkage shaft (10) rotatably connected to the tube body (1), a linkage wheel connected to one end of the linkage shaft (10), a dual-axis reduction motor (8) connected to the side end of the tube body (1), a transmission shaft (9) connected to the output shaft of the dual-axis reduction motor (8), and the transmission shaft (9) meshing with the linkage wheel of the linkage shaft (10) through the transmission wheel.

3. The ultrasonic water meter pipe section with self-cleaning function according to claim 2, characterized in that, Both ends of the functional plate (201) are provided with rotating holes (2013) with grooves, and the sealing cover (6) is rotatably connected to the rotating holes (2013) of the functional plate (201) through a round shaft (601).

4. The ultrasonic water meter pipe section with self-cleaning function according to claim 3, characterized in that, The linkage shaft (10) is rotatably connected to the tube body (1) through a sealed bearing. One end of the linkage shaft (10) located inside the tube body (1) is provided as a T-shaped insert shaft. The linkage shaft (10) is engaged with the rotating hole (2013) of the function plate (201) through the T-shaped insert shaft.

5. The ultrasonic water meter pipe section with self-cleaning function according to claim 1, characterized in that, The functional plate (201) is disc-shaped, and a T-shaped slide groove (2011) in the middle of the functional plate (201) is provided. The T-shaped slide (202) is slidably connected to the functional plate (201) through the T-shaped slide groove (2011), and the brush roller (203) is inserted into the sleeve of the T-shaped slide (202).

6. The ultrasonic water meter pipe section with self-cleaning function according to claim 5, characterized in that, The functional board (201) has multiple mounting slots, and the primary reflector (2012) is installed in the mounting slots of the functional board (201).

7. The ultrasonic water meter pipe section with self-cleaning function according to claim 6, characterized in that, The adjustment assembly also includes a spring (206) sleeved on the lifting column (205), a detachable piston cylinder (7) is installed on the tube (1), the spring (206) is located inside the piston cylinder (7), and one end of the nylon rope (204) is connected to the hanging ring of the lifting column (205) by a hook.

8. The ultrasonic water meter pipe section with self-cleaning function according to claim 7, characterized in that, The axial line of the lifting column (205) is not on the same straight line as the center vertical line of the function plate (201), and the lifting column (205) is located on one side of the center of the function plate (201).

9. The ultrasonic water meter pipe section with self-cleaning function according to claim 2, characterized in that, The upper end of the tube body (1) is provided with a first mounting port (101), the ultrasonic transducer (3) is installed in the first mounting port (101), a sealing plate (4) is detachably connected to the first mounting port (101), the side end of the tube body (1) is provided with a second mounting port (102), and the sealing cover (6) is detachably connected to the second mounting port (102).

10. The ultrasonic water meter pipe section with self-cleaning function according to claim 1, characterized in that, A protective plate (103) is installed on the pipe body (1).

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