Integrated large-caliber ultrasonic intelligent valve control water meter

Abstract

The invention discloses an integrated large-caliber ultrasonic intelligent valve control water meter which comprises a valve body and a detection structure installed on the valve body, the detection structure comprises an ultrasonic meter for detecting fluid in the valve body, a pressure monitor and a temperature monitor, and the ultrasonic meter is used for metering the fluid flowing in the valve body; the sealing structure further comprises a sealing valve structure, and when the first rotating structure drives the rotating piece and the movable sealing piece to rotate, the movable sealing piece is locked when abutting against the valve seat. And then the first rotating structure drives the second rotating structure to rotate to drive the movable sealing piece to be separated from the rotating piece and move in the axis direction of the valve body to increase the pre-tightening force between the movable sealing piece and the valve seat. Through the cooperation of the first rotating structure and the second rotating structure, the sealing performance of the water meter can be ensured, the pre-tightening force disappears when the sealing valve structure is opened, the sealing ring is prevented from being abraded, the water meter is protected, and the metering accuracy of the water meter is also ensured.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic water meter technology, and in particular to an integrated large-diameter ultrasonic intelligent valve-controlled water meter. Background Technology

[0002] Integrated ultrasonic water meters, as a new type of fluid control device that combines flow measurement, parameter monitoring, and valve control functions, have been widely used in fields such as farmland irrigation, urban water supply, and heating regulation due to their multi-functional integration advantages. These water meters not only need to accurately measure the flow rate of fluids in pipelines, but also need to simultaneously collect key parameters such as fluid pressure and temperature. Through valve control functions, they enable prepaid card-based irrigation, timed or quantitative irrigation, and dynamic adjustment of flow, pressure, and temperature, providing core support for the intelligent management of fluid systems.

[0003] In the core components of integrated ultrasonic water meters, the performance of the regulating valve directly determines the control accuracy and operational reliability of the water meter. Currently, most mainstream products in the industry use eccentric hemispherical regulating valves as the core control component. Their core structure consists of an eccentric valve body, a ball, and a valve seat. Automatic centering and sealing are achieved through a double-eccentric rotation design. Simultaneously, the detachable structure of the ball and valve seat alleviates, to some extent, the wear problem caused by long-term contact friction of the sealing ring in traditional valves, extending the basic service life of the valve.

[0004] However, in practical applications, existing eccentric hemispherical regulating valves still suffer from two major technical defects that urgently need to be addressed, severely impacting the overall performance and user experience of integrated ultrasonic water meters: insufficient sealing reliability, which easily leads to fluid leakage risks. Existing eccentric hemispherical regulating valves still rely on traditional sealing rings for sealing. Even with a design that separates the ball from the valve seat to reduce wear, the material properties of the sealing ring and the contact-type sealing method still have inherent defects: the contact area and force between the sealing ring and the ball are limited. Under high-pressure fluid conditions, local pressure concentration can easily cause the sealing ring to break, leading to fluid leakage. Leakage not only increases metering errors but may also cause water waste (e.g., in farmland irrigation) or reduced heating efficiency (e.g., in urban heating), and even safety hazards such as pressure imbalance in the pipeline system. Furthermore, there are currently very few valve body structures that further increase the preload between the ball and the valve seat, or valve body structures used in water meters.

[0005] The existing technology described above cannot meet the needs of water meter usage. Therefore, this application proposes an integrated large-diameter ultrasonic intelligent valve-controlled water meter. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned technical problems by proposing an integrated large-diameter ultrasonic intelligent valve-controlled water meter.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An integrated large-diameter ultrasonic intelligent valve-controlled water meter includes a valve body and a detection structure mounted on the valve body. The detection structure includes an ultrasonic meter, a pressure monitor, and a temperature monitor for detecting fluid within the valve body. The ultrasonic meter is used to measure the fluid flowing within the valve body. It also includes a sealing valve structure, which includes a valve seat, a drive unit, and a valve ball structure that mates with the valve seat, all mounted within the valve body. The drive unit includes a first rotating structure and a second rotating structure that are movably connected. The valve ball structure includes a movable seal and a rotating component that are movably connected. When the first rotating structure drives the rotating component and the movable seal to rotate, the movable seal is locked when it comes into contact with the valve seat; then the first rotating structure drives the second rotating structure to rotate, causing the movable seal to separate from the rotating component and move along the valve body axis, increasing the preload between it and the valve seat.

[0008] Preferably, the detection structure further includes a mounting base disposed on the upper end of the valve body, on which a controller is mounted, and the controller is connected to an ultrasonic meter, a pressure monitor, and a temperature monitor.

[0009] Preferably, the first rotating structure includes a transmission component and a sleeve that rotates in a sealed manner with the valve body. The upper end of the sleeve extends into the controller, and a worm gear is provided on the outer surface of the sleeve.

[0010] Preferably, the transmission component includes a transmission shaft, the outer surface of which is provided with a worm gear that is movably disposed therewith, the worm gear meshing with a worm wheel, a first torque member being provided between the transmission shaft and the worm gear, and a drive block being provided at the end of the transmission shaft, the drive block being capable of driving the second rotating structure to rotate.

[0011] Preferably, the first rotating structure further includes a locking mechanism for locking the movable seal when it abuts against the valve seat. The locking mechanism includes a locking block disposed in the controller, and a moving block is provided on the outer surface of the sleeve. The locking block is located on the rotation path of the moving block following the axial rotation of the sleeve.

[0012] Preferably, the second rotating structure includes a drive shaft movably disposed within the sleeve, the upper end of the drive shaft being located within the controller and provided with a second torque member, a rotating block being provided on the outer surface of the drive shaft, a passive block being provided on the lower end face of the rotating block, and the passive block being located on the rotation path of the drive block.

[0013] Preferably, the rotating component includes a support arm disposed outside the sleeve, a rotating disk integrally formed on the support arm, and a guide groove and a through hole provided on the rotating disk to cooperate with the movable seal.

[0014] Preferably, the movable seal includes a mounting plate with a detachable spherical crown. The end face of the mounting plate opposite to the spherical crown is provided with a guide post for use with a guide groove. The mounting plate is also provided with a movable post that can drive the mounting plate to move and reset. The movement of the movable post can drive the mounting plate to move upward along the axial direction of the valve body.

[0015] Preferably, it further includes an eccentric component that drives the moving column to move the mounting plate. The eccentric component includes a ring disposed on the drive shaft, the ring having a plurality of non-aggressive protrusions, and the moving column being located on the path of the protrusions rotating axially on the ring.

[0016] Preferably, during the process of the mounting plate and the rotating plate rotating to the valve seat, the protrusion can drive the moving column to move intermittently, so that a flow space is formed between the mounting plate and the rotating plate, and the relative positions of the mounting plate, the ball crown and the fluid in the valve body are changed.

[0017] Compared with the prior art, the beneficial effects of this invention are as follows: 1. When the ball crown of the movable seal abuts against the sealing ring of the valve seat, the moving block on the sleeve rotates until it abuts against the locking block fixed on the inner wall of the housing. The sleeve is then limited and cannot rotate, ensuring a precise seal between the ball crown and the sealing ring.

[0018] 2. Under the action of the first rotating structure, when the hemispherical block disengages from the protrusion, the mounting plate is reset under the action of the spring. This process repeats, changing the distance between the mounting plate and the rotating plate, thus changing the size of the flow space. The flowing liquid can pass through this flow space, which can flush and clean impurities that adhere to the mounting plate and the rotating plate during sealing. The distance of this flow space changes from large to small and then from small to large, which can also change the speed and pressure of the liquid flowing into the flow space, resulting in a better cleaning effect on impurities adhering to the mounting plate and the rotating plate.

[0019] 3. Under the action of the second rotating structure, a ring is fixed on the drive shaft. The protrusion on the ring rotates and drives the hemispherical block to move, thereby causing the mounting plate and the ball crown to move along the valve body axis and further compress the sealing ring, increasing the pre-tightening force between the movable seal and the valve seat, thus ensuring the sealing performance of the ball crown and the sealing ring, thereby ensuring the sealing performance of the water meter.

[0020] 4. While increasing the preload between the moving seal and the valve seat, this preload will disappear when the sealing valve structure is opened, preventing the sealing ring from being worn, thus protecting the water meter and ensuring the accuracy of water meter readings.

[0021] In summary, the present invention, through the cooperation of the first and second rotating structures, can ensure the water meter's sealing performance. When the sealing valve structure is opened, the pre-tightening force disappears, preventing the sealing ring from being worn, thus protecting the water meter and ensuring the accuracy of water meter readings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an integrated large-diameter ultrasonic intelligent valve-controlled water meter proposed in this invention. Figure 2 This is a top view of an integrated large-diameter ultrasonic intelligent valve-controlled water meter proposed in this invention. Figure 3 This is a schematic diagram of the valve pipe direction in an integrated large-diameter ultrasonic intelligent valve-controlled water meter proposed in this invention. Figure 4 This is a schematic diagram of the detection tube direction in an integrated large-diameter ultrasonic intelligent valve-controlled water meter proposed in this invention. Figure 5 This is a schematic diagram of the sealing valve structure in an integrated large-diameter ultrasonic intelligent valve-controlled water meter proposed in this invention. Figure 6 This is a schematic diagram of the protrusion structure in an integrated large-diameter ultrasonic intelligent valve-controlled water meter proposed in this invention. Figure 7 This is a schematic diagram of the valve ball structure in an integrated large-diameter ultrasonic intelligent valve-controlled water meter proposed in this invention. Figure 8 This is a schematic diagram of the worm gear in an integrated large-diameter ultrasonic intelligent valve-controlled water meter proposed in this invention. Figure 9 This is a schematic diagram of the valve seat structure of an integrated large-diameter ultrasonic intelligent valve-controlled water meter proposed in this invention.

[0023] In the diagram: 100 Valve body, 110 Detection tube, 120 Valve pipe, 130 Flange, 200 Detection structure, 210 Ultrasonic meter, 220 Pressure monitor, 230 Mounting base, 240 Temperature monitor, 250 Controller, 300 Sealing valve structure, 310 Valve ball structure, 311 Movable seal, 3111 Ball crown, 3112 Mounting plate, 3114 Spring, 3115 Moving column, 3116 Hemispherical block, 312 Rotating component, 3121 Support arm, 3122 Rotating disk 3123 Guide groove, 3133 Guide post, 320 First rotating structure, 321 Sleeve, 322 Worm gear, 323 Moving block, 324 Locking block, 325 Transmission component, 3251 Transmission shaft, 3252 Worm, 3253 First torque component, 3254 Drive block, 330 Second rotating structure, 331 Drive shaft, 3311 Ring, 3312 Protrusion, 332 Second torque component, 333 Rotating block, 334 Passive block, 340 Valve seat, 341 Mounting ring, 342 Sealing ring. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Reference Figures 1-9 An integrated large-diameter ultrasonic smart valve-controlled water meter includes a valve body 100 and a detection structure 200 installed on the valve body 100. The detection structure 200 includes an ultrasonic meter 210 for detecting fluid inside the valve body 100, a pressure monitor 220 and a temperature monitor 240. The ultrasonic meter 210 is used to measure the fluid flowing inside the valve body 100. It also includes a sealing valve structure 300, which includes a valve seat 340 installed in the valve body 100, a drive unit, and a valve ball structure 310 that cooperates with the valve seat 340. The drive unit includes a first rotating structure 320 and a second rotating structure 330 that can be movably connected. The valve ball structure 310 includes a movable sealing element 311 and a rotating element 312 that are movably connected. When the first rotating structure 320 drives the rotating component 312 and the movable seal 311 to rotate, the movable seal 311 is locked when it comes into contact with the valve seat 340; then the first rotating structure 320 drives the second rotating structure 330 to rotate, causing the movable seal 311 to separate from the rotating component 312 and move along the axis of the valve body 100 to increase the preload between it and the valve seat 340.

[0026] The detection structure 200 also includes a mounting base 230 disposed on the upper end of the valve body 100. The mounting base 230 is integrally cast with the valve body 100 and is used to install the controller 250. The mounting base 230 is provided with through holes for installing the ultrasonic meter 210, the pressure monitor 220, and the temperature monitor 240. The controller 250 is mounted on the mounting base 230. The controller 250 includes a housing and an internal microprocessor, a display screen on the housing, etc. This part is prior art.

[0027] like Figure 1 , Figure 2 As shown, the valve body 100 includes a detection tube 110 and a valve tube 120. The detection tube 110 and the valve tube 120 are cast integrally and a reducing pipe is formed at their connection. The valve seat 340 is installed at this reducing pipe. The detection tube 110 is used to install an ultrasonic meter 210, a pressure monitor 220, and a temperature monitor 240. The valve tube 120 is used to install a sealing valve structure 300. The opposite ends of the detection tube 110 and the valve tube 120 are both integrally formed or welded with flanges to allow the invention to be installed in a pipeline.

[0028] like Figure 9 As shown, the valve seat 340 includes a mounting ring 341, which is threaded to the inner wall of the reducing pipe or fixed in this position by bolts; a sealing ring 342 is installed at the end of the mounting ring 341 facing the valve pipe 120, and the ball crown 3111 abuts against the sealing ring 342 to achieve a seal.

[0029] The controller 250 is connected to the ultrasonic meter 210, the pressure monitor 220, and the temperature monitor 240. The pressure monitor 220 is a pressure sensor used to monitor the fluid pressure within the valve body 100. The temperature monitor 240 is a temperature sensor used to monitor the temperature of the fluid within the valve body 100. The ultrasonic meter 210 includes two pairs of ultrasonic transducers symmetrically arranged on both sides of the water flow channel, with the transducer axes forming a 45° angle with the water flow direction. The ultrasonic transducers alternately act as transmitters and receivers, calculating the flow rate information by measuring the time difference of ultrasonic wave propagation in the downstream and upstream directions of the water flow, combined with parameters such as the cross-sectional area of ​​the water flow channel. This flow rate information is then transmitted to the microprocessor.

[0030] The aforementioned monitoring and measurement parameters are displayed on the screen so that users can understand the details of using the water meter.

[0031] like Figure 5 , Figure 8As shown, the first rotating structure 320 includes a transmission component 325 and a sleeve 321 that rotates in a sealed manner with the valve body 100. The two are sealed by mechanical seal. The upper end of the sleeve 321 extends into the controller 250. The sleeve 321 passes through the mounting base 230 and is rotatably connected to it in a sealed manner. The upper part of the sleeve 321 extends into the housing. A worm gear 322 is provided on the outer surface of the sleeve 321. The worm gear 322 is fixed on the sleeve 321. The sleeve 321 is located inside the housing.

[0032] like Figure 8 As shown, the transmission component 325 includes a transmission shaft 3251, and a servo motor is also installed inside the housing. The output end of the motor is fixedly connected to the transmission shaft 3251. When the motor is working, it drives the transmission shaft 3251 to rotate through its output end. The outer surface of the drive shaft 3251 is provided with a worm 3252 movably mounted thereto. The worm 3252 is hollow along its axial direction, and the drive shaft 3251 passes through the interior of the worm 3252 and is rotatably connected to it via bearings. The worm 3252 meshes with a worm wheel 322, and when the worm 3252 rotates, it can drive the worm wheel 322 to rotate. A first torque element 3253, which is a first torsion spring, is provided between the drive shaft 3251 and the worm 3252. When the drive shaft 3251 rotates, it will drive the first torsion spring and the worm 3252 to rotate. When the resistance of the worm 3252 driving the worm wheel 322 to rotate is greater than the torque threshold of the first torque element 3253, the first torque element 3253 will be driven to rotate and generate torque, thereby causing relative rotation between the drive shaft 3251 and the worm 3252. like Figure 5 , Figure 8 As shown, a drive block 3254 is provided at the end of the drive shaft 3251, and the drive block 3254 can drive the second rotating structure 330 to rotate; this part is further explained as follows: The second rotating structure 330 includes a drive shaft 331 movably disposed within the sleeve 321. The drive shaft 331 is rotatably mounted within the sleeve 321 via bearings. The upper end of the drive shaft 331 is located within the controller 250 and is provided with a second torque element 332, which is a second torsion spring. The second torsion spring is mounted on the drive shaft 331 and the housing, thereby limiting the drive shaft 331 and making it difficult for the drive shaft 331 to rotate.

[0033] A rotating block 333 is provided on the outer surface of the drive shaft 331. The rotating block 333 is horizontally set and fixed on the drive shaft 331. A passive block 334 is provided on the lower end face of the rotating block 333. The passive block 334 is vertically fixed to the bottom end of the rotating block 333, and the two form an L-shaped structure. The passive block 334 is located on the rotation path of the drive block 3254. That is, when the drive shaft 3251 drives the drive block 3254 to rotate, the rotation of the drive block 3254 can abut against the passive block 334 and drive the passive block 334 to rotate. In the initial state, the drive block 3254 and the passive block 334 can abut or not abut. An encoder can be installed on the drive shaft 331 to ensure that the servo motor stops working after the drive shaft 331 rotates to a set angle.

[0034] like Figure 5 , Figure 8 As shown, the first rotating structure 320 also includes a locking mechanism for locking the movable seal 311 when it abuts against the valve seat 340. The locking mechanism includes a locking block 324 disposed in the controller 250 and fixed to the inner wall of the housing by bolts. A moving block 323 is provided on the outer surface of the sleeve 321 and is fixed on the sleeve 321. The locking block 324 is located on the rotation path of the moving block 323 following the axial rotation of the sleeve 321. When the spherical crown 3111 abuts against the sealing ring 342, the moving block 323 abuts against the locking block 324, that is, the sleeve 321 is limited and cannot rotate, ensuring a precise seal between the spherical crown 3111 and the sealing ring 342.

[0035] like Figure 3 , Figure 5 , Figure 7 , Figure 9 As shown, the rotating component 312 includes a support arm 3121 disposed outside the sleeve 321, and a rotating disk 3122 integrally formed on the support arm 3121. The sleeve 321, the support arm 3121, and the rotating disk 3122 are integrally formed by casting. The lower support arm 3121 also has an integrally formed sleeve 321, which is rotatably mounted on the inner bottom of the valve body 100. The rotating disk 3122 is provided with guide grooves 3123 that cooperate with the movable seal 311 and through holes; wherein, the guide grooves 3123 are distributed in a circumferential array on the rotating disk 3122; the through holes are coaxially arranged with the rotating disk 3122.

[0036] like Figure 7 As shown, the movable seal 311 includes a mounting plate 3112, on which a detachable ball crown 3111 is provided. The ball crown 3111 is fixed to the mounting plate 3112 by bolts. When the ball crown 3111 is damaged or needs to be replaced, the bolts can be removed to remove the ball crown 3111 for replacement. The mounting plate 3112 has a guide post 3113 on its end face away from the spherical crown 3111, which is used in conjunction with the guide groove 3123. The position and number of the guide post 3113 and the guide groove 2123 correspond to each other. The mounting plate 3112 is also provided with a movable post 3115 that can drive the mounting plate 3112 to move and reset. The movement of the movable post 3115 can drive the mounting plate 3112 to move along the axial direction of the valve body 100. The movable post 3115 passes through the through hole and is slidably disposed therewith. A hemispherical block 3116 is fixed to the end of the movable post 3115. The spherical surface of the hemispherical block 3116 is made of PTFE to reduce friction with the protrusion 3312. A spring 3114 is fixed on the hemispherical block 3116. The other end of the spring 3114 is fixed to the mounting plate 3112. The spring 3114 is always in a compressed state. The force of the spring 3114 is used to reset the mounting plate 3112.

[0037] like Figure 6 As shown, it also includes an eccentric component that drives the moving column 3115 to move the mounting plate 3112. The eccentric component includes a ring 3311 disposed on the drive shaft 331. The ring 3211 is fixed to the drive shaft 331 by bolts. The ring 3311 is provided with a plurality of non-aggressive protrusions 3312. The protrusions 3312 and the ring 3311 are integrally formed as PTFE blocks to reduce friction during movement. The protrusions 3312 are arranged adjacently and continuously. The moving column 3115 is located on the path of the protrusions 3312 rotating axially on the ring 3311. That is to say, when the drive shaft 331 rotates, it can drive the ring 3311 and the protrusions 3312 to rotate. The protrusions 3312 will abut against the hemispherical block 3116 during the rotation process.

[0038] Furthermore, during the rotation of the mounting plate 3112 and the rotating plate 3122 to the valve seat 340, the protrusion 3312 can drive the moving column 3115 to move intermittently, so that a flow space is formed between the mounting plate 3112 and the rotating plate 3122. The flowing liquid can pass through this flow space to flush and clean impurities and other substances that adhere to the mounting plate 3112 and the rotating plate 3122 during sealing. The spacing of this flow space changes from large to small and then from small to large, which can also change the speed and pressure of the liquid flowing into the flow space, resulting in a better cleaning effect on impurities adhering to the mounting plate 3112 and the rotating plate 3122.

[0039] It also changes the relative position of the fluid in the mounting plate 3112, the ball crown 3111 and the valve body 100, and the impurities on the surface of the mounting plate 3112 can be cleaned by the flushing of the liquid.

[0040] The process of using this invention is as follows: During use, when the fluid passes through the valve body 100, the flow rate, pressure and temperature of the fluid can be monitored in real time; the pressure sensor of the pressure monitor 220 monitors the fluid pressure in the valve body 100 in real time and transmits the pressure data to the microprocessor of the controller 250. Temperature monitor 240 temperature sensor monitors the temperature of the fluid inside valve body 100 in real time and transmits the temperature data to the microprocessor of controller 250; The ultrasonic meter 210 includes two pairs of ultrasonic transducers, symmetrically arranged on both sides of the water flow channel, with the axis of the ultrasonic transducers forming a 45° angle with the direction of water flow. The ultrasonic transducers alternately act as transmitters and receivers. By measuring the time difference of ultrasonic wave propagation in the downstream and upstream directions of water flow, and combining this with parameters such as the cross-sectional area of ​​the water flow channel, the flow rate information is calculated and transmitted to the microprocessor.

[0041] The aforementioned monitoring and measurement parameters are displayed on the screen of the controller 250 so that users can understand the details of the water meter's use.

[0042] In addition, the controller 250 can also have a built-in high-frequency card reader. When a pre-paid user card is placed on the left side of the ultrasonic water meter housing, it will be automatically read. If the remaining balance on the user card is greater than 0, the ultrasonic water meter will open the valve. When the card is swiped again or the remaining balance is 0, the ultrasonic water meter will close the valve.

[0043] Users initiate water dispensing by swiping an IC card or NFC card. The system automatically identifies the card balance and controls the valve opening and closing, enabling a pre-payment billing method for water usage.

[0044] When fluid flows within the flow-restricting valve body 100, the microprocessor within the controller 250 controls the servo motor to operate, driving the transmission shaft 3251 to rotate via its output. Since the resistance of the worm gear 3252 driving the worm wheel 322 is less than the torque value of the first torque member 3253, the transmission shaft 3251 drives the worm gear 3252 to rotate synchronously. Because the worm gear 3252 meshes with the worm wheel 322 fixed on the sleeve 321, when the worm gear 3252 rotates, it drives the worm wheel 322 to rotate, thereby driving the sleeve 321 to rotate. The sleeve 321 drives the support arm 3121, the rotating disk 3122, and the rotating component 312, all integrally cast with it, to rotate. The rotating component 312 drives the movable seal 311 to rotate.

[0045] When the ball crown 3111 of the movable seal 311 abuts against the sealing ring 342 of the valve seat 340, the moving block 323 on the sleeve 321 rotates to abut against the locking block 324 fixed on the inner wall of the housing, and the sleeve 321 is limited and cannot rotate, ensuring a precise seal between the ball crown 3111 and the sealing ring 342.

[0046] During the process of the spherical crown 3111 abutting against the sealing ring 342, the sleeve 321 and the drive shaft 331 rotate relative to each other. In other words, the drive shaft 331 remains stationary under the action of the second torque member 332. During the rotation of the support arm 3121, the rotating disk 3122, and the rotating component 312, the spring 3114, the moving column 3115, and the hemispherical block 3116 will be driven to rotate. When the hemispherical block 3116 rotates, it intermittently abuts against the protrusions 3312 placed on the drive shaft 331. When the hemispherical block 3116 abuts the protrusions 3312, since the elastic force of the spring 3114 is less than the torque value of the second torque component 332, the hemispherical block 3116 will be driven to move by the protrusions 3312, which in turn drives the moving column 3115, the hemispherical block 3116, the spherical crown 3111, and the mounting disk 3112 to move, so that the mounting disk 3112 and the rotating disk 3122 are separated. Under the guidance of the guide column 3113 and the guide groove 3123, the two move stably without relative rotation. When the hemispherical block 3116 disengages from the protrusion 3312, the mounting plate 3112 is reset under the action of the spring 3114. This process repeats, changing the distance between the mounting plate 3112 and the rotating plate 3122, thus changing the size of the flow space. The flowing liquid can pass through this flow space, which can flush and clean impurities and other substances that adhere to the mounting plate 3112 and the rotating plate 3122 during sealing. The distance between the two flow spaces changes from large to small and then from small to large, which can also change the speed and pressure of the liquid flowing into the flow space, resulting in a better cleaning effect on the impurities adhering to the mounting plate 3112 and the rotating plate 3122.

[0047] It should be noted that the hemispherical block 3116 is located between the two protrusions 3312 at this time.

[0048] Since the sleeve 321 cannot rotate, the worm gear 322 cannot rotate, which in turn prevents the worm 3252 from rotating. This means the drive shaft 3251 cannot continue to drive the worm 3252. The continued operation of the servo motor's output will drive the drive shaft 3251 to rotate. The drive shaft 3251 drives the drive block 3254 at its end to rotate. The rotation of the drive block 3254 abuts against the driven block 334 on the lower end face of the rotating block 333 on the drive shaft 331 (both the drive block 3254 and the driven block 334 are PTFE blocks to reduce friction between them; an aluminum alloy core can be built inside). (such as blocks, to increase its strength), and drive the passive block 334 to rotate, thereby driving the drive shaft 331 to rotate; a ring 3311 is fixed on the drive shaft 331, and the protrusion 3312 set on the ring 3311 rotates and drives the hemispherical block 3116 to move, thereby causing the mounting plate 3112 and the ball crown 3111 to move along the axis of the valve body 100 and further compress the sealing ring 342, increasing the pre-tightening force between the movable sealing element 311 and the valve seat 340, that is, ensuring the sealing performance of the ball crown 3111 and the sealing ring 342, thereby ensuring the sealing performance of the water meter operation.

[0049] At this time, the mounting plate 3112 and the rotating plate 3122 are in a separated state.

[0050] When it is opened again, the servo motor drives the transmission shaft 3251 to reverse. Under the action of the first torque member 3253, the drive block 3254 is first driven to reverse, that is, the drive block 3254 no longer rotates the rotating block 333 and the passive block 334. Under the action of the second torque member 332, the drive shaft 331 is reset, that is, the protrusion 3312 disengages from the hemispherical block 3116 and no longer restricts the hemispherical block 3116. Then, the drive shaft 2351 drives the worm gear 3252 to rotate, which in turn drives the worm wheel 322 to rotate in the opposite direction, thereby driving the ball crown 3111 to rotate. The ball crown 3111 does not abut against the sealing ring 342, thus realizing the flow of the valve body 100.

[0051] This configuration increases the preload between the movable seal 311 and the valve seat 340. When the sealing valve structure 300 is opened, the preload disappears, preventing the sealing ring 342 from being worn and thus protecting the water meter.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An integrated large-diameter ultrasonic intelligent valve-controlled water meter, comprising a valve body (100) and a detection structure (200) mounted on the valve body (100), wherein the detection structure (200) includes an ultrasonic meter (210) for detecting fluid within the valve body (100), a pressure monitor (220), and a temperature monitor (240), wherein the ultrasonic meter (210) is used to measure the fluid flowing within the valve body (100); characterized in that, It also includes a sealing valve structure (300), which includes a valve seat (340) installed in the valve body (100), a drive unit, and a valve ball structure (310) that cooperates with the valve seat (340). The drive unit includes a first rotating structure (320) and a second rotating structure (330) that can be movably connected. The valve ball structure (310) includes a movable seal (311) and a rotating member (312) that are movably connected. When the first rotating structure (320) drives the rotating part (312) and the movable seal (311) to rotate, the movable seal (311) is locked when it comes into contact with the valve seat (340); then the first rotating structure (320) drives the second rotating structure (330) to rotate, causing the movable seal (311) to separate from the rotating part (312) and move along the axial direction of the valve body (100) to increase the preload between it and the valve seat (340).

2. The integrated large-diameter ultrasonic intelligent valve-controlled water meter according to claim 1, characterized in that, The detection structure (200) also includes a mounting base (230) disposed on the upper end of the valve body (100), on which a controller (250) is mounted, and the controller (250) is connected to an ultrasonic meter (210), a pressure monitor (220) and a temperature monitor (240).

3. The integrated large-diameter ultrasonic intelligent valve-controlled water meter according to claim 2, characterized in that, The first rotating structure (320) includes a transmission component (325) and a sleeve (321) that rotates in a sealed manner with the valve body (100). The upper end of the sleeve (321) extends into the controller (250), and a worm gear (322) is provided on the outer surface of the sleeve (321).

4. The integrated large-diameter ultrasonic intelligent valve-controlled water meter according to claim 3, characterized in that, The transmission component (325) includes a transmission shaft (3251), the outer surface of which is provided with a worm (3252) movably disposed therewith, the worm (3252) meshing with a worm wheel (322), a first torque member (3253) being provided between the transmission shaft (3251) and the worm (3252), and a drive block (3254) being provided at the end of the transmission shaft (3251), the drive block (3254) being able to drive the second rotating structure (330) to rotate.

5. The integrated large-diameter ultrasonic intelligent valve-controlled water meter according to claim 3, characterized in that, The first rotating structure (320) also includes a locking mechanism for locking the movable seal (311) when it abuts against the valve seat (340). The locking mechanism includes a locking block (324) disposed in the controller (250). A moving block (323) is provided on the outer surface of the sleeve (321). The locking block (324) is located on the rotation path of the moving block (323) following the axial rotation of the sleeve (321).

6. The integrated large-diameter ultrasonic intelligent valve-controlled water meter according to claim 3, characterized in that, The second rotating structure (330) includes a drive shaft (331) movably disposed within a sleeve (321). The upper end of the drive shaft (331) is located within a controller (250) and is provided with a second torque member (332). A rotating block (333) is provided on the outer surface of the drive shaft (331). A passive block (334) is provided on the lower end face of the rotating block (333). The passive block (334) is located on the rotation path of the drive block (3254).

7. The integrated large-diameter ultrasonic intelligent valve-controlled water meter according to claim 1, characterized in that, The rotating component (312) includes a support arm (3121) disposed outside the sleeve (321), and a rotating disk (3122) integrally formed on the support arm (3121). The rotating disk (3122) is provided with a guide groove (3123) that cooperates with the movable seal (311) and a through hole.

8. The integrated large-diameter ultrasonic intelligent valve-controlled water meter according to claim 1, characterized in that, The movable seal (311) includes a mounting plate (3112), on which a detachable spherical crown (3111) is provided. The end face of the mounting plate (3112) opposite to the spherical crown (3111) is provided with a guide post (3133) that works with the guide groove (3123). The mounting plate (3112) is provided with a movable post (3115) that can move and reset the mounting plate (3112). The movement of the movable post (3115) can move the mounting plate (3112) upward along the axis of the valve body (100).

9. The integrated large-diameter ultrasonic intelligent valve-controlled water meter according to claim 8, characterized in that, It also includes an eccentric component that drives the moving column (3115) to move the mounting plate (3112), the eccentric component including a ring (3311) disposed on the drive shaft (331), the ring (3311) having a plurality of non-aggressive protrusions (3312) disposed thereon, the moving column (3115) being located on the path of the protrusions (3312) rotating axially on the ring (3311).

10. The integrated large-diameter ultrasonic intelligent valve-controlled water meter according to claim 8, characterized in that, During the process of the mounting plate (3112) and the rotating plate (3122) rotating to the valve seat (340), the protrusion (3312) can drive the moving column (3115) to move intermittently, so that a flow space is formed between the mounting plate (3112) and the rotating plate (3122), and the relative position of the fluid in the mounting plate (3112), the spherical crown (3111) and the valve body (100) is changed.

Images