Liquid ultrasonic flowmeter modified based on Internet of Things

Abstract

The invention relates to the field of liquid ultrasonic flow meters, in particular to a liquid ultrasonic flow meter improved based on the Internet of Things, which comprises a flow meter main body, an ultrasonic sensor is arranged on the flow meter main body in an inclined alignment manner, the ultrasonic sensor is telescopically arranged on the flow meter main body, and a cleaning part is further arranged in the flow meter main body. A driving part for driving the cleaning part is also arranged outside the flowmeter main body; according to the liquid ultrasonic flowmeter transformed based on the Internet of Things, the ultrasonic sensor which is designed in a telescopic mode is adopted, the position of the ultrasonic sensor can be adjusted according to needs or the ultrasonic sensor can be independently disassembled, a large number of assemblies do not need to be disassembled, the maintenance time and cost are remarkably reduced, and the convenience and flexibility of equipment maintenance are improved; meanwhile, the cleaning part is arranged in the flowmeter body, the automatic cleaning function is achieved through the external driving part, dirt accumulated in the flowmeter can be effectively removed through the transmission sleeve and the inner wall scrapers arranged on the two sides of the transmission sleeve, and it is guaranteed that the inner wall is always kept clean.

Description

Technical Field

[0001] The present invention belongs to the field of liquid ultrasonic flowmeters, and in particular relates to a liquid ultrasonic flowmeter transformed based on the Internet of Things. Background Art

[0002] Liquid ultrasonic flowmeters are an important measurement tool widely used in industrial and residential applications to monitor and control fluid flow. Traditional ultrasonic flowmeters typically consist of a fixed ultrasonic sensor that transmits and receives ultrasonic signals transmitted through the liquid. This sensor then calculates flow velocity and flow rate based on the time or phase difference between the signals.

[0003] In the existing technology, since the position of the ultrasonic sensor is fixed, when the sensor needs to be cleaned or replaced, it may be necessary to stop the system and disassemble some components for maintenance, which increases maintenance costs and time. In addition, during long-term use, sediment may accumulate inside the flow meter, which not only affects the measurement accuracy but may also cause equipment failure. Therefore, how to overcome the above-mentioned technical problems and defects has become a key issue that needs to be solved. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects described in the background technology, so as to realize a liquid ultrasonic flowmeter based on the Internet of Things transformation, so as to solve the problems in the prior art that the flowmeter needs to disassemble components for maintenance, maintenance is difficult, sediment is generated inside the flowmeter during long-term use, and measurement accuracy is affected.

[0005] In order to achieve the above-mentioned purpose of the invention, the technical solution of the present invention is: it includes a flowmeter body, an ultrasonic sensor is obliquely arranged on the flowmeter body, the ultrasonic sensor is telescopically arranged on the flowmeter body, a cleaning part is also arranged inside the flowmeter body, and a driving part for driving the cleaning part is also arranged outside the flowmeter body.

[0006] In the above-mentioned liquid ultrasonic flowmeter based on the Internet of Things transformation, the ultrasonic sensors are obliquely symmetrically arranged on both sides of the flowmeter body, and positioning sleeves are obliquely arranged on both sides of the flowmeter body. The ultrasonic sensor is slidably inserted inside the positioning sleeves, and a positioning nut for fixing the ultrasonic sensor is provided at the end of the positioning sleeve.

[0007] Furthermore, a tightening part is integrally provided at the outer end of the positioning sleeve, and the tightening part is a cylindrical conical structure as a whole. The inner diameter of the tightening part is consistent with that of the positioning sleeve. The wall thickness at the integral connection between the tightening part and the positioning sleeve is greater than the wall thickness of the end of the tightening part. There are multiple shrinkage grooves axially opened on the tightening part.

[0008] Specifically, the positioning nut is arranged at the junction of the tightening part and the positioning sleeve. A thread is provided on the inner wall of one end of the positioning nut, and a bevel sleeve is integrally provided on the inner wall of the other end that is adapted to the specifications of the outer wall of the tightening part. The positioning nut is threadedly connected to the end of the positioning sleeve through one end with a thread, and at the same time, the end with the bevel sleeve slides against the outer wall of the tightening part.

[0009] Preferably, a truncated cone-shaped notch groove is provided at the joint of the positioning sleeve and the flowmeter body. After the ultrasonic sensor is installed on the positioning sleeve, a truncated cone-shaped sealing sleeve is provided at the corresponding truncated cone-shaped notch groove. The specifications of the truncated cone-shaped sealing sleeve are consistent with those of the truncated cone-shaped notch groove, and the truncated cone-shaped sealing sleeve is embedded in the truncated cone-shaped notch groove. One end of the truncated cone-shaped sealing sleeve abuts the positioning sleeve, and the other end abuts the flowmeter body.

[0010] Preferably, a pressurizing groove is axially opened at one end of the inner wall of the truncated cone-shaped sealing sleeve close to the flow meter body, and a thin wall is left between the pressurizing groove and the inner wall of the end of the truncated cone-shaped sealing sleeve.

[0011] In the above-mentioned liquid ultrasonic flowmeter based on Internet of Things transformation, the cleaning part includes a transmission sleeve, and inner wall scrapers are provided on both sides of the transmission sleeve.

[0012] Furthermore, a circular groove for embedding a transmission sleeve is opened in the middle of the flow meter body, and the transmission sleeve is arranged in the circular groove, and the transmission sleeve is made of elastically deformable metal material.

[0013] Specifically, at least one inner wall scraper is provided on both sides of the transmission sleeve, and the specifications of the inner wall scrapers on both sides are consistent. The inner wall scrapers are arranged in contact with the inner wall of the flow meter body, and the sum of the width of the transmission sleeve and the length of the inner wall scraper is equal to the length of the flow meter body.

[0014] Furthermore, a sleeve-shaped worm gear is fixedly provided on the outside of the transmission sleeve, and a receiving groove for accommodating the sleeve-shaped worm gear is provided on the inner wall of the flow meter body corresponding to the sleeve-shaped worm gear. The flow meter body is also provided with an installation port for facilitating the installation of the sleeve-shaped worm gear, and the width of the installation port is smaller than the width of the transmission sleeve and the circular groove in which the transmission sleeve is embedded.

[0015] In the above-mentioned liquid ultrasonic flowmeter based on Internet of Things transformation, the driving part includes a driving motor, which is arranged outside the flowmeter body. A worm is arranged outside the installation port of the flowmeter body. The driving motor is connected to the worm through a transmission unit, and the worm engages the transmission sleeve-shaped worm gear from the installation port.

[0016] Preferably, a protective cover for protecting the drive motor is also provided on the flowmeter body at the drive motor.

[0017] Preferably, bubble-relieving nets are provided at both ends of the flow meter body.

[0018] Preferably, two inner wall scrapers are provided on both sides of the transmission sleeve, and the two inner wall scrapers on the same side are arranged in opposition. Radial scrapers A are provided at the ends of the two inner wall scrapers, and the two ends of the radial scraper A are fixedly connected to the two opposed inner wall scrapers.

[0019] Preferably, both sides of the radial scraper A are provided with cutting edges, and the outer cutting edges thereof abut against the inner side wall of the bubble-sparing net.

[0020] Preferably, a rotating sleeve is provided in the middle of the bubble decompression net, a connecting clamp rod is provided in the middle of the radial scraper A, a radial scraper B is provided on the outside of the bubble decompression net, the radial scraper B is fixedly connected to the radial scraper A through the connecting clamp rod, and the radial scraper B abuts the outer wall of the bubble decompression net.

[0021] Preferably, a rotary joint is provided on the outside of the bubble decompression net, and a retaining ring is provided on the rotating end of the rotary joint close to the bubble decompression net. The retaining ring is connected to a radial scraper C through a connecting arm plate, and the radial scraper C abuts the outer wall of the bubble decompression net.

[0022] Beneficial effects of the present invention: 1. The IoT-based liquid ultrasonic flowmeter of this invention utilizes a retractable ultrasonic sensor, allowing the sensor to be repositioned or removed individually as needed without disassembling numerous components. This significantly reduces maintenance time and costs, improving the convenience and flexibility of equipment maintenance. When the sensor needs cleaning or replacement, simply loosen the retaining nut to easily extend or remove it, greatly facilitating routine maintenance.

[0023] 2. To address the potential accumulation of internal sediment during long-term use, this invention incorporates a cleaning unit within the flowmeter body, which is automatically cleaned via an external drive. The drive sleeve and the inner wall scrapers on either side effectively remove accumulated dirt from the flowmeter, ensuring the inner wall remains clean at all times.

[0024] 3. This device incorporates rigid bubble-removing screens at both ends of the flowmeter body and features a cleaning mechanism specifically designed for the inside and outside. This ensures that the screens are less susceptible to clogging or damage during long-term use, thereby extending their service life. Furthermore, by maintaining a clean interior, the risk of equipment failure due to sediment buildup is reduced, further enhancing the reliability and durability of the entire system. This comprehensive cleaning design not only improves the equipment's operating efficiency but also significantly reduces long-term operating costs. Furthermore, the bubble-removing screens at both ends not only help remove bubbles and other impurities from the liquid but also further enhance measurement accuracy. These measures work together to effectively prevent measurement errors caused by internal contamination and ensure the long-term, stable, and precise operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the liquid ultrasonic flowmeter based on the Internet of Things transformation of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the liquid ultrasonic flowmeter based on the Internet of Things transformation of the present invention after the bubble net is removed; Figure 3 This is a schematic perspective diagram of the cross-sectional structure of the flowmeter body of the liquid ultrasonic flowmeter based on the Internet of Things transformation of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the liquid ultrasonic flowmeter based on the Internet of Things transformation of the present invention, after the flowmeter body is cut along two ultrasonic sensors arranged in opposite positions; Figure 5 This is a schematic cross-sectional view of the structure of the bubble-releasing net of the liquid ultrasonic flowmeter based on the Internet of Things transformation of the present invention; Figure 6 This is a schematic cross-sectional structural diagram of a rotary joint of a liquid ultrasonic flowmeter modified based on the Internet of Things according to the present invention; Figure 7 yes Figure 4 A magnified schematic diagram of the structure at point A.

[0026] In the picture: 1- Flowmeter body: 101- Ultrasonic sensor; 102- Accommodation slot; 103- Mounting port; 2-Cleaning unit: 201-Transmission sleeve; 202-Inner wall scraper; 203-Sleeve-shaped worm gear; 204-Radial scraper A; 205-Connecting clamping rod; 206-Radial scraper B; 3- Driving unit: 301- driving motor; 302- worm; 303- transmission unit; 304- protective cover; 4- Positioning sleeve: 401-locating nut, 411-bevel sleeve; 402-tightening portion, 421-contraction notch; 403-truncated cone-shaped sealing sleeve, 431-pressurization groove, 432-thin wall; 5-foam net: 501-rotating sleeve; 6- Rotary joint: 601- Retaining ring; 602- Connecting arm; 603- Radial scraper C. DETAILED DESCRIPTION

[0027] The liquid ultrasonic flowmeter based on Internet of Things transformation of the present invention is described in more detail below with reference to the accompanying drawings and through specific implementation methods.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention. Example

[0029] This embodiment discloses a liquid ultrasonic flowmeter based on the Internet of Things. By configuring the ultrasonic sensor to be retractable and detachable, and providing a cleaning unit and a drive unit to clean the interior of the flowmeter body, this method addresses the problems of conventional flowmeters that require component disassembly for maintenance, resulting in maintenance difficulties, and the accumulation of deposits within the flowmeter over time, which can affect measurement accuracy. Details are provided below.

[0030] See also Figure 1 It mainly includes a flowmeter body 1, on which an ultrasonic sensor 101 is obliquely arranged, and the ultrasonic sensor 101 is retractably arranged on the flowmeter body 1. A cleaning part 2 is also provided inside the flowmeter body 1, and a driving part 3 for driving the cleaning part 2 is also provided outside the flowmeter body 1.

[0031] In this embodiment, the ultrasonic sensor 101 adopts a retractable design and can adjust its position as needed. When maintaining the ultrasonic sensor 101, the ultrasonic sensor 101 can be extended or disassembled separately to facilitate maintenance. In order to deal with the problem of internal accumulation that may occur during long-term use, a cleaning unit 2 is provided inside the flow meter body 1. The cleaning unit 2 helps to keep the interior of the flow meter body 1 clean and ensure that the measurement accuracy is not affected. The driving unit 3 is located outside the flow meter body 1 and is used to drive the internal cleaning unit 2. In addition, when the cleaning unit 2 cleans the interior of the flow meter body 1, the position of the ultrasonic sensor 101 can be adjusted to prevent interference with the cleaning unit 2.

[0032] To facilitate the maintenance of the ultrasonic sensor 101, the ultrasonic sensor 101 can be retracted and disassembled. Figure 1 、 Figure 2 The ultrasonic sensor 101 is obliquely symmetrically arranged on both sides of the flow meter body 1, and positioning sleeves 4 are obliquely arranged on both sides of the flow meter body 1. The ultrasonic sensor 101 is slidably inserted into the positioning sleeve 4, and a positioning nut 401 is provided at the end of the positioning sleeve 4 for fixing the ultrasonic sensor 101.

[0033] In this embodiment, positioning sleeves 4 are positioned diagonally on either side of the flowmeter body 1, and the ultrasonic sensor 101 is slidably inserted within the positioning sleeves 4. The positioning sleeves 4 serve as a guide and support structure for the sensor, allowing it to move smoothly within the sleeves. Positioning nuts 401 are provided at the ends of the positioning sleeves 4 to secure the position of the ultrasonic sensor 101. When maintenance or adjustment is required, the sensor can be released by loosening the positioning nuts 401, allowing it to slide within the positioning sleeves 4, allowing for convenient extension or removal.

[0034] Ultrasonic sensor 101 can be repositioned, maintained, and replaced without affecting the overall flowmeter structure. This significantly improves the maintainability and flexibility of the device, reducing maintenance time and costs while ensuring measurement accuracy and stability. Furthermore, the positioning structure of positioning sleeve 4 and positioning nut 401 ensures the stability of the sensor during operation.

[0035] To achieve the positioning and locking of the ultrasonic sensor 101, see Figure 2 、 Figure 4 、 Figure 7 The outer end of the positioning sleeve 4 is integrally provided with a tightening portion 402, and the tightening portion 402 is a cylindrical frustum structure as a whole. The inner diameter of the tightening portion 402 is consistent with the positioning sleeve 4. The wall thickness of the integral connection between the tightening portion 402 and the positioning sleeve 4 is greater than the wall thickness of the end of the tightening portion 402. The tightening portion 402 is axially provided with multiple shrinkage grooves 421.

[0036] The positioning nut 401 is arranged at the junction of the tightening part 402 and the positioning sleeve 4. The inner wall of one end of the positioning nut 401 is provided with a thread, and the inner wall of the other end is integrally provided with a bevel sleeve 411 that is adapted to the specifications of the outer wall of the tightening part 402. The positioning nut 401 is threadedly connected to the end of the positioning sleeve 4 through one end with a thread, and at the same time, the end with the bevel sleeve 411 slides against the outer wall of the tightening part 402.

[0037] In this embodiment, a tightening portion 402 is integrally formed at the outer end of the positioning sleeve 4, forming an overall cylindrical, frustoconical structure. This structure ensures that the inner diameter of the tightening portion 402 matches that of the positioning sleeve 4. The wall thickness at the connection between the tightening portion 402 and the positioning sleeve 4 is greater, while the wall thickness at the end of the tightening portion 402 is less. Furthermore, the tightening portion 402 is axially defined with multiple contraction notches 421. These notches allow the tightening portion to elastically deform when appropriate pressure is applied, thereby clamping or loosening the ultrasonic sensor 101.

[0038] The positioning nut 401 is located at the junction of the tightening part 402 and the positioning sleeve 4. The inner wall of one end is provided with a thread, and the inner wall of the other end is provided with an integrally formed bevel sleeve 411. The bevel sleeve 411 is designed to match the specifications of the outer wall of the tightening part 402. Specifically, the positioning nut 401 is threadedly connected to the end of the positioning sleeve 4 through its threaded end, and at the same time, its end with the bevel sleeve 411 slides against the outer wall of the tightening part 402. When the positioning nut 401 is tightened, the bevel sleeve 411 will slide along the outer wall of the tightening part 402, causing the tightening part 402 to produce radial contraction due to the presence of the contraction notch 421, thereby tightly clamping the internal ultrasonic sensor 101 to achieve the purpose of locking.

[0039] To clean the inner wall of the flow meter body 1 and prevent dirt accumulation, see Figure 3 、 Figure 4 The cleaning portion 2 includes a transmission sleeve 201 , and inner wall scrapers 202 are provided on both sides of the transmission sleeve 201 .

[0040] In this embodiment, at least one inner wall scraper 202 is provided on each side of the transmission sleeve 201. These scrapers have the same specifications and fit closely to the inner wall of the flow meter body 1. In this way, dirt attached to the inner wall can be effectively scraped off.

[0041] In addition, to ensure that the position of the transmission sleeve 201 does not undergo axial displacement during rotation, in this embodiment, a circular groove for embedding the transmission sleeve 201 is opened in the middle of the flow meter body 1, and the transmission sleeve 201 is arranged in the circular groove.

[0042] A circular groove for embedding the transmission sleeve 201 is provided in the middle of the flow meter body 1. The transmission sleeve 201 is arranged in this circular groove to ensure that it can rotate stably and prevent it from axial displacement.

[0043] To facilitate installation of the transmission sleeve 201, in this embodiment, the transmission sleeve 201 is made of an elastically deformable metal material, adapted to the specifications of the circular groove. During installation, the transmission sleeve 201 is deformed by a new method to fit into the circular groove. Once installed, the transmission sleeve 201 returns to its original specifications due to its own elasticity, thus completing the installation.

[0044] At least one inner wall scraper 202 is provided on both sides of the transmission sleeve 201. The specifications of the inner wall scrapers 202 on both sides are consistent. The inner wall scraper 202 is set in contact with the inner wall of the flow meter body 1. The sum of the width of the transmission sleeve 201 and the length of the inner wall scraper 202 is equal to the length of the flow meter body 1.

[0045] The sum of the width of the transmission sleeve 201 and the length of the inner wall scrapers 202 on both sides is equal to the length of the flow meter body 1, ensuring that the cleaning range can completely cover the inner wall of the flow meter body 1 without leaving any dead corners.

[0046] Drive sleeve 201 is driven by external drive unit 3 to move back and forth or rotate within flow meter body 1. During this process, inner wall scrapers 202 on both sides of drive sleeve 201 adhere closely to the inner wall surface of flow meter body 1, scraping off accumulated dirt, thereby keeping the inner wall clean and avoiding measurement errors caused by dirt accumulation.

[0047] In order to facilitate driving the transmission sleeve 201, thereby driving the inner wall scraper 202 to rotate, see Figure 3 、 Figure 4 A sleeve-shaped worm gear 203 is fixedly provided on the outside of the transmission sleeve 201, and a receiving groove 102 for accommodating the sleeve-shaped worm gear 203 is provided on the inner wall of the flowmeter body 1 corresponding to the sleeve-shaped worm gear 203. The flowmeter body 1 is also provided with an installation opening 103 for facilitating the installation of the sleeve-shaped worm gear 203. The width of the installation opening 103 is smaller than the width of the transmission sleeve 201 and the circular groove in which the transmission sleeve 201 is embedded.

[0048] In this embodiment, a sleeve-shaped worm gear 203 is fixedly provided on the outside of the transmission sleeve 201. The sleeve-shaped worm gear 203 is sleeved on the outside of the transmission sleeve 201 and is used to engage with the external driving part 3, thereby realizing the rotation of the transmission sleeve 201 inside the flowmeter body 1.

[0049] An accommodating groove 102 is provided on the inner wall of the flow meter body 1 at a position corresponding to the sleeve-shaped worm gear 203 , to ensure that the flow meter body 1 can operate stably without affecting the overall sealing and smoothness of the flow meter body 1 .

[0050] To facilitate installation of the sleeve-shaped worm gear 203, a mounting opening 103 is specifically provided on the flowmeter body 1. Notably, the width of the mounting opening 103 is designed to be smaller than the width of the transmission sleeve 201 and the circular groove in which it is embedded. This structure ensures convenient installation of the sleeve-shaped worm gear 203 while also ensuring the overall sealing and operational stability of the device, avoiding potential leaks or other problems caused by an overly large opening.

[0051] In addition, in order to prevent leakage at the installation opening 103, a sealing gasket may be installed on the outer side of the transmission sleeve 201 to further improve its sealing performance.

[0052] To realize the rotation of the driving sleeve 201 and the inner wall scraper 202, see Figure 3 、 Figure 4The driving part 3 includes a driving motor 301, which is arranged outside the flowmeter body 1. A worm 302 is arranged outside the installation port 103 of the flowmeter body 1. The driving motor 301 is connected to the worm 302 through the transmission unit 303, and the worm 302 engages the transmission sleeve-shaped worm gear 203 from the installation port 103.

[0053] A protective cover 304 for protecting the driving motor 301 is also provided on the flow meter body 1 at the driving motor 301 .

[0054] In this embodiment, the drive motor 301 is located outside the flowmeter body 1, providing rotational power to drive the worm 302, which in turn drives the transmission sleeve 201 and the inner wall scraper 202. Located outside the mounting opening 103 of the flowmeter body 1, the worm 302 is connected to the drive motor 301 through a transmission unit 303.

[0055] The worm 302 directly meshes with the sleeve-shaped worm gear 203 on the transmission sleeve 201 through the mounting opening 103. When the drive motor 301 is started, the drive motor 301 drives the worm 302 to rotate. The worm 302, in turn, meshes with the sleeve-shaped worm gear 203, causing the transmission sleeve 201 to rotate, thereby driving the inner wall scraper 202 to scrape and clean the inner wall of the flowmeter body 1.

[0056] It should be noted that the transmission unit 303 in this embodiment includes but is not limited to a gear belt transmission mechanism, a sprocket chain vibration structure, a bevel gear set transmission structure or other forms of mechanical transmission devices. As long as the rotational motion of the drive motor 301 can be transmitted to the worm 302, the structure of the driving sleeve worm gear 203 can be used. Example

[0057] The same points as the above embodiment will not be repeated here, but the differences are as follows: To enhance the stability and sealing of the positioning sleeve 4 and the ultrasonic sensor 101, see Figure 4 、 Figure 7 A truncated cone-shaped notch is provided at the joint between the positioning sleeve 4 and the flowmeter body 1. After the ultrasonic sensor 101 is installed on the positioning sleeve 4, a truncated cone-shaped sealing sleeve 403 is provided at the corresponding truncated cone-shaped notch. The truncated cone-shaped sealing sleeve 403 has the same specifications as the truncated cone-shaped notch, and the truncated cone-shaped sealing sleeve 403 is embedded in the truncated cone-shaped notch. One end of the truncated cone-shaped sealing sleeve 403 abuts the positioning sleeve 4, and the other end abuts the flowmeter body 1.

[0058] In this embodiment, a truncated cone-shaped notch is provided at the junction of the positioning sleeve 4 and the flowmeter body 1. The notch accommodates and secures the truncated cone-shaped sealing sleeve 403, thereby ensuring its correct position and providing good sealing performance. When the ultrasonic sensor 101 is mounted on the positioning sleeve 4, a truncated cone-shaped sealing sleeve 403 is provided at the position corresponding to the truncated cone-shaped notch. The truncated cone-shaped sealing sleeve 403 has the same specifications as the truncated cone-shaped notch and is embedded therein. One end of the truncated cone-shaped sealing sleeve 403 abuts the positioning sleeve 4, and the other end abuts the flowmeter body 1, thus forming a tight sealing connection to prevent liquid leakage. Example

[0059] The similarities with the above embodiments and their combinations are not repeated here, and the differences are as follows: To further enhance the sealing performance between the positioning sleeve 4 and the ultrasonic sensor 101, see Figure 1 、 Figure 2 A pressurizing groove 431 is axially opened at one end of the inner wall of the truncated cone-shaped sealing sleeve 403 close to the flow meter body 1 , and a thin wall 432 is left between the pressurizing groove 431 and the inner wall of the end of the truncated cone-shaped sealing sleeve 403 .

[0060] In this embodiment, a pressurization groove 431 is axially defined at one end of the truncated cone-shaped sealing sleeve 403, near the inner wall of the flowmeter body 1. A thin wall 432 is formed between this groove and the inner wall of the end of the truncated cone-shaped sealing sleeve 403. This structure allows the pressure (water pressure) within the flowmeter body 1 to apply pressure to the pressurization groove 431, causing the thin wall 432 to deform and adhere tightly to the outer wall of the ultrasonic sensor 101 under the action of pressure, thereby further enhancing the sealing performance.

[0061] In this embodiment, the greater the pressure inside the flow meter body 1, the closer the thin wall 432 is to the outer wall of the ultrasonic sensor 1041, making the seal tighter and effectively preventing the possibility of fluid leakage through the gap. Example

[0062] The similarities with the above embodiments and their combinations are not repeated here, and the differences are as follows: To further improve device performance and measurement accuracy, see Figure 1 、 Figure 3 、 Figure 4 A bubble-relieving net 5 is provided at both ends of the flow meter body 1.

[0063] In this embodiment, the bubble-removing net 5 is located at both ends of the flow meter body 1, namely at the inlet and outlet. Such a layout helps to pre-treat the liquid before it enters or leaves the flow meter body, effectively removing bubbles or other impurities in the liquid. During the fluid metering process, the presence of bubbles may cause measurement errors because they affect the propagation characteristics of the ultrasonic signal. By installing the bubble-removing net 5 at both ends of the flow meter, these bubbles can be reduced or even eliminated to a great extent, ensuring that the measurement results are more accurate and reliable. Furthermore, in this embodiment, the bubble-removing net 5 is made of a hard material. This hardness provides it with sufficient strength and durability, making it less susceptible to deformation or damage. In addition to removing bubbles, the bubble-removing net 5 also prevents larger particles from entering the flow meter body, thereby protecting sensitive internal components (ultrasonic sensor 101) from damage and extending the device's service life. Example

[0064] The similarities with the above embodiments and their combinations are not repeated here, and the differences are as follows: In order to clean the bubble net 5 and prevent the accumulation of impurities and scaling after long-term use, see Figure 2 、 Figure 3 Two inner wall scrapers 202 are provided on both sides of the transmission sleeve 201. The two inner wall scrapers 202 on the same side are arranged in opposite positions. Radial scrapers A204 are provided at the ends of the two inner wall scrapers 202. The ends of the radial scrapers A204 are fixedly connected to the two inner wall scrapers 202. The radial scrapers A204 have cutting edges on both sides, and the outer cutting edges thereof abut against the inner side wall of the bubble degassing net 5.

[0065] In this embodiment, two inner wall scrapers 202 are provided on either side of the transmission sleeve 201, with the two inner wall scrapers 202 on the same side positioned in opposite positions. A radial scraper A204 is positioned between the ends of the two aligned inner wall scrapers 202. The ends of the radial scraper A204 are fixedly connected to the two inner wall scrapers 202 and move with them. The primary function of the radial scraper A204 is to clean the bubble degassing net 5.

[0066] The radial scraper A204 is provided with a blade on both sides, and in particular, its outer blade is designed to directly abut the inner wall of the bubble net 5. Through the above structure, the radial scraper A can effectively scrape off the impurities and scale accumulated on the surface of the inner wall of the bubble net 5, keeping it clean, thereby maintaining a good bubble filtration effect and fluid flow performance. In addition, the radial scraper A204 with a blade on both sides can make the fluid pass more smoothly. The special design of the radial scraper A204 not only improves the fluid flow efficiency, but also can automatically clean the filter screen during operation to prevent impurities from accumulating and ensure the long-term stable operation of the equipment. Example

[0067] The same points as in Example 5 are not described in detail, except that: In order to further enhance the cleaning effect of the bubble net 5 and ensure that both the inside and outside of the net are kept clean, see Figure 3 、 Figure 5 A rotating sleeve 501 is provided in the middle of the bubble-splitting net 5, a connecting clamping rod 205 is provided in the middle of the radial scraper A204, and a radial scraper B206 is provided on the outside of the bubble-splitting net 5. The radial scraper B206 is fixedly connected to the radial scraper A204 through the connecting clamping rod 205, and the radial scraper B206 abuts against the outer wall of the bubble-splitting net 5.

[0068] In the present embodiment, a rotating sleeve 501 is provided in the middle part of the bubble sparse net 5, which provides infrastructure support for connecting and fixing other cleaning components. Radial scraper A204 is arranged between the ends of the inner wall scrapers 202 on both sides of the transmission sleeve 201 and is reinforced and supported by a connecting clamping rod 205. The connecting clamping rod 205 not only plays a fixing role, but also serves as a connecting bridge, so that radial scraper A204 can be firmly connected to the cleaning component radial scraper B206 on the inside of the bubble sparse net 5. When the transmission sleeve 201 rotates, radial scraper A204 and radial scraper B206 can move synchronously, and radial scraper B206 directly abuts the outer side wall of the bubble sparse net 5 to scrape and clean its surface.

[0069] In addition, both sides are provided with a scraper structure, which can provide structural support to the bubble net 5 to prevent it from being damaged by excessive water pressure and ensure its service life. Example

[0070] The same points as in Example 5 are not described in detail, except that: In order to further enhance the cleaning effect of the bubble net 5 and ensure that both the inside and outside of the net are kept clean, see Figure 6 A rotary joint 6 is provided on the outside of the bubble net 5, and a retaining ring 601 is provided on the rotating end of the rotary joint 6 close to the bubble net 5. The retaining ring 601 is connected to a radial scraper C603 through a connecting arm plate 602, and the radial scraper C603 abuts the outer wall of the bubble net 5.

[0071] In this embodiment, a retaining ring 601 is installed at the end of the rotary joint 6 near the bubble degassing net 5. This retaining ring is connected to a radial scraper C603 via a connecting arm 602. The design of the retaining ring 601 and connecting arm 602 ensures that the radial scraper C603 is securely mounted and effectively cleans the bubble net 5. The radial scraper C603 directly abuts the outer wall of the bubble degassing net 5. When the rotating end of the rotary joint 6 is rotated, it drives the cleaning assembly (retaining ring 601, connecting arm 602, and radial scraper C603) to rotate. As the cleaning assembly rotates, the radial scraper C603 scrapes and cleans the outer wall of the bubble degassing net 5, removing accumulated impurities and scale, and keeping it clean.

[0072] The working principle of the liquid ultrasonic flowmeter based on Internet of Things transformation of the present invention is: When the present invention is in use, when the liquid flows through the inside of the flow meter body 1, it first flows through the bubble net 5. The bubble net 5 pre-treats the flowing liquid and effectively removes bubbles or other impurities in the liquid. When the liquid flows through the ultrasonic sensor 101, the ultrasonic sensor 101 arranged obliquely measures the flowing liquid.

[0073] When the ultrasonic sensor 101 needs to be maintained or repaired and replaced, the positioning nut 401 is loosened, and the ultrasonic sensor 101 is extended or removed for maintenance or replacement.

[0074] When the interior of the flowmeter body 1 needs to be cleaned, the ultrasonic sensor 101 is retracted into the positioning sleeve 4 to prevent it from interfering with the rotation of the cleaning unit 2. The drive motor 301 is then activated, which rotates the worm 302 via the transmission unit 303. The worm 302 engages with the sleeve-shaped worm gear 203 fixed to the outside of the transmission sleeve 201, causing the transmission sleeve 201 to begin rotating. As the transmission sleeve 201 rotates, the inner wall scrapers 202 on either side of the transmission sleeve 201 adhere closely to the inner wall of the flowmeter body 1, scraping away accumulated dirt and keeping the interior clean.

[0075] When the inner wall scraper 202 scrapes dirt on the inner wall of the flow meter body 1, the radial scraper A204 and the radial scraper B206 (connected by the connecting clamp rod 205) act on the inner and outer sides of the bubble net 5 at the same time to ensure the cleanliness of the bubble net 5.

[0076] It should be noted that the structures depicted in the drawings herein are not fixed, unchangeable implementations of the present invention in practice. The components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Furthermore, the drawings in this specification and the abstract are schematic only and do not represent the specific structure or actual quantities of the components in practice.

[0077] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprising" and other similar words mean that the elements or parts preceding the word include the elements or parts listed after the word and their equivalents, without excluding other elements or parts. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0078] The exemplary embodiments of the present invention are described in detail above with reference to preferred embodiments. However, it will be understood by those skilled in the art that, without departing from the concept of the present invention, various variations and modifications may be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the present invention may be made without exceeding the scope of protection of the present invention.

Claims

1. A liquid ultrasonic flowmeter based on Internet of Things transformation, comprising a flowmeter body (1), an ultrasonic sensor (101) being arranged obliquely on the flowmeter body (1), characterized in that: The ultrasonic sensor (101) is telescopically arranged on the flow meter body (1); a cleaning portion (2) is further arranged inside the flow meter body (1); and a driving portion (3) for driving the cleaning portion (2) is further arranged outside the flow meter body (1).

2. The liquid ultrasonic flowmeter based on Internet of Things transformation according to claim 1 is characterized in that: The ultrasonic sensor (101) is obliquely symmetrically arranged on both sides of the flow meter body (1), positioning sleeves (4) are obliquely arranged on both sides of the flow meter body (1), the ultrasonic sensor (101) is slidably inserted inside the positioning sleeve (4), and a positioning nut (401) for fixing the ultrasonic sensor (101) is provided at the end of the positioning sleeve (4).

3. The liquid ultrasonic flowmeter based on Internet of Things transformation according to claim 2 is characterized in that: The outer end of the positioning sleeve (4) is integrally provided with a tightening portion (402), the tightening portion (402) is in the form of a cylindrical frustum structure as a whole, the inner diameter of the tightening portion (402) is consistent with that of the positioning sleeve (4), the wall thickness of the integral connection between the tightening portion (402) and the positioning sleeve (4) is greater than the wall thickness of the end of the tightening portion (402), and the tightening portion (402) is axially provided with a plurality of shrinkage notches (421); The positioning nut (401) is arranged at the junction of the tightening part (402) and the positioning sleeve (4), and a thread is provided on the inner wall of one end of the positioning nut (401), and a bevel sleeve (411) adapted to the specifications of the outer wall of the tightening part (402) is integrally provided on the inner wall of the other end. The positioning nut (401) is threadedly connected to the end of the positioning sleeve (4) through the end having the thread, and at the same time, the end provided with the bevel sleeve (411) slides against the outer wall of the tightening part (402).

4. The liquid ultrasonic flowmeter based on Internet of Things transformation according to any one of claims 2 or 3, characterized in that: A truncated cone-shaped notch groove is provided at the joint of the positioning sleeve (4) and the flow meter body (1); after the ultrasonic sensor (101) is mounted on the positioning sleeve (4), a truncated cone-shaped sealing sleeve (403) is provided at the corresponding truncated cone-shaped notch groove; the truncated cone-shaped sealing sleeve (403) has the same specifications as the truncated cone-shaped notch groove, and the truncated cone-shaped sealing sleeve (403) is embedded in the truncated cone-shaped notch groove; one end of the truncated cone-shaped sealing sleeve (403) abuts against the positioning sleeve (4), and the other end abuts against the flow meter body (1); A pressurizing groove (431) is axially opened at one end of the inner wall of the truncated cone-shaped sealing sleeve (403) close to the flow meter body (1), and a thin wall (432) is left between the pressurizing groove (431) and the inner wall of the end of the truncated cone-shaped sealing sleeve (403).

5. The liquid ultrasonic flowmeter based on Internet of Things transformation according to claim 1 is characterized in that: The cleaning portion (2) comprises a transmission sleeve (201), and inner wall scrapers (202) are provided on both sides of the transmission sleeve (201); A circular groove for embedding a transmission sleeve (201) is provided in the middle of the flow meter body (1), and the transmission sleeve (201) is arranged in the circular groove; The transmission sleeve (201) is made of elastically deformable metal material; At least one inner wall scraper (202) is provided on both sides of the transmission sleeve (201), and the inner wall scrapers (202) on both sides have the same specifications. The inner wall scrapers (202) are arranged to fit the inner wall of the flow meter body (1), and the sum of the width of the transmission sleeve (201) and the length of the inner wall scraper (202) is equal to the length of the flow meter body (1).

6. The liquid ultrasonic flowmeter based on Internet of Things transformation according to claim 5 is characterized in that: A sleeve-shaped worm gear (203) is fixedly provided on the outside of the transmission sleeve (201); a receiving groove (102) for receiving the sleeve-shaped worm gear (203) is provided on the inner wall of the flow meter body (1) corresponding to the sleeve-shaped worm gear (203); a mounting opening (103) for facilitating the installation of the sleeve-shaped worm gear (203) is also provided on the flow meter body (1); the width of the mounting opening (103) is smaller than the width of the transmission sleeve (201) and the circular groove in which the transmission sleeve (201) is embedded.

7. The liquid ultrasonic flowmeter based on Internet of Things transformation according to claim 6 is characterized in that: The driving portion (3) includes a driving motor (301), the driving motor (301) being arranged outside the flow meter body (1), a worm (302) being arranged outside the mounting opening (103) of the flow meter body (1), the driving motor (301) being connected to the worm (302) via a transmission unit (303), and the worm (302) being engaged with a transmission sleeve-shaped worm wheel (203) from the mounting opening (103); A protective cover (304) for protecting the drive motor (301) is also provided on the flow meter body (1) at the drive motor (301).

8. The liquid ultrasonic flowmeter based on Internet of Things transformation according to claim 5 is characterized in that: Both ends of the flow meter body (1) are provided with bubble-relieving nets (5); Two inner wall scrapers (202) are provided on both sides of the transmission sleeve (201), the two inner wall scrapers (202) on the same side are arranged in a counter-positioned manner, radial scrapers A (204) are provided at the ends of the two inner wall scrapers (202), and the two ends of the radial scraper A (204) are fixedly connected to the two counter-positioned inner wall scrapers (202); The radial scraper A (204) is provided with cutting edges on both sides, and the outer cutting edges thereof abut against the inner side wall of the bubble-relieving net (5).

9. The liquid ultrasonic flowmeter based on Internet of Things transformation according to claim 8 is characterized in that: A rotating sleeve (501) is provided in the middle of the bubble-splitting net (5), a connecting clamping rod (205) is provided in the middle of the radial scraper A (204), and a radial scraper B (206) is provided outside the bubble-splitting net (5). The radial scraper B (206) is fixedly connected to the radial scraper A (204) via the connecting clamping rod (205), and the radial scraper B (206) abuts against the outer wall of the bubble-splitting net (5).

10. The liquid ultrasonic flowmeter based on Internet of Things transformation according to claim 8 is characterized in that: A rotary joint (6) is provided on the outside of the bubble-sparing net (5); a retaining ring (601) is provided on the rotating end of the rotary joint (6) close to the bubble-sparing net (5); the retaining ring (601) is connected to a radial scraper C (603) via a connecting arm plate (602); and the radial scraper C (603) abuts against the outer wall of the bubble-sparing net (5).

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