Multifunctional ultrasonic water meter

Abstract

The invention relates to the technical field of ultrasonic water meters, in particular to a multifunctional ultrasonic water meter which comprises a shell, an ultrasonic generator and an ultrasonic receiver are arranged on the shell, an inner protective cover and an outer protective cover are rotationally arranged on the periphery of the ultrasonic generator and the periphery of the ultrasonic receiver, and the inner protective cover and the outer protective cover can effectively protect the ultrasonic generator and the ultrasonic receiver. Meanwhile, the driving assembly is arranged to control the ultrasonic generator and the ultrasonic receiver to rotate, so that the working surfaces are located at different positions when the ultrasonic generator and the ultrasonic receiver are in different working states; in addition, a cleaning roller is arranged on the shell, the cleaning roller can clean impurities in the liquid, and the influence of the impurities on the detection precision is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic water meters, in particular to a multifunctional ultrasonic water meter. Background Art

[0002] Ultrasonic water meter is a high-precision instrument that uses ultrasonic waves to measure water flow velocity and volume. It detects the time difference caused by the change in speed of the ultrasonic sound beam when it propagates downstream and upstream in the water, analyzes and processes the water flow rate, and further calculates the water flow rate.

[0003] For example, Chinese patent CN109870204A discloses a single-hole insertion ultrasonic water meter, which uses two ultrasonic sensors with two probes arranged opposite to each other to alternately transmit and receive ultrasonic signals, and can measure the flow rate of fluid with high measurement accuracy. In addition, through the guide groove opened in the middle of the stainless steel shell, the fluid can pass through the sensor sensing area, so that the sensor can obtain flow data, thereby completing the flow detection.

[0004] However, the two ultrasonic sensors in the above solution are exposed to the pipeline fluid, so this part will be impacted by the fluid, causing the sensor to be subjected to certain mechanical stress. Long-term stress will cause the sensor detection accuracy to decrease, and when there are certain impurities in the fluid, suspended matter, minerals, algae and other impurities in the water may be deposited on the sensor surface, affecting the propagation of ultrasonic waves. Summary of the invention

[0005] Based on this, it is necessary to provide a multifunctional ultrasonic water meter to address the problem that the ultrasonic sensor in the current water meter is exposed to liquid for a long time, resulting in a decrease in the accuracy of the sensor.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A multifunctional ultrasonic water meter, comprising:

[0008] A shell, the shell can be connected to a pipeline, the shell is provided with a sensor group, the sensor group includes an ultrasonic generator and an ultrasonic receiver, the ultrasonic generator and the ultrasonic receiver are partially located in the shell, and the parts of the ultrasonic generator and the ultrasonic receiver located in the shell both have a working surface and a non-working surface;

[0009] A shield assembly, the shield assembly comprising an outer protective shield and an inner protective shield, the inner protective shield being rotatably arranged on the periphery of the ultrasonic generator and the ultrasonic receiver, the inner protective shield being made of a hard material, the outer protective shield being fixed on the periphery of the inner protective shield, the outer protective shield having a rough surface and being made of a flexible material;

[0010] A driving assembly, the driving assembly is used to drive the ultrasonic generator and the ultrasonic receiver to rotate, and the driving assembly is configured as follows:

[0011] When the liquid in the pipeline flows, the driving component drives the working surfaces of the ultrasonic generator and the ultrasonic receiver toward the pipeline axis direction;

[0012] When the internal liquid stops flowing, the driving assembly drives the non-working surfaces of the ultrasonic generator and the ultrasonic receiver toward the pipeline axis.

[0013] Furthermore, the driving assembly includes a driving motor and a first transmission belt, the driving motor is fixedly arranged on the outside of the shell, the first transmission belt is wound around the rotating shaft of the ultrasonic generator, the ultrasonic receiver and the driving motor, the driving motor drives the first transmission belt to rotate, and the first transmission belt pulls the ultrasonic generator and the ultrasonic receiver to rotate.

[0014] Furthermore, a power generation component is also arranged on the outside of the shell, and the power generation component can provide electrical energy to the driving motor.

[0015] Furthermore, the power generation component includes a generator and a storage battery, the generator and the storage battery are both fixedly connected to the shell, the generator is electrically connected to the storage battery, a second transmission belt is wound around the rotating shaft of the generator, the second transmission belt is sleeved on the outer protective cover, the liquid flow in the pipeline drives the outer protective cover to rotate to drive the second transmission belt to rotate, and the second transmission belt pulls the generator to rotate.

[0016] Furthermore, there are two ultrasonic generators, which are symmetrically arranged, and when one of the two ultrasonic generators is working, the other is in a non-working state.

[0017] Furthermore, the ultrasonic wave generating receiver has two, the two ultrasonic wave receivers are symmetrically arranged, and when one of the two ultrasonic wave receivers is working, the other is in a non-working state.

[0018] Furthermore, a cleaning roller is provided on the housing, the cleaning roller abuts against the outer protective cover, and the cleaning roller can scrape the surface of the outer protective cover.

[0019] Furthermore, a connecting component is provided on the shell, and the connecting component is used for sealingly connecting the pipeline.

[0020] Furthermore, the connection assembly includes two connection flanges, one end of each of the two connection flanges is fixedly disposed on the shell, and the other end of the two connection flanges is detachably disposed on the pipeline.

[0021] Furthermore, a display screen is also provided on the shell, and the display screen is electrically connected to the ultrasonic generator and the ultrasonic receiver, and the display screen can display the liquid data in the pipeline.

[0022] The beneficial effects of the present invention are:

[0023] The present invention can effectively protect the ultrasonic generator and the ultrasonic receiver by providing a rotating inner protective cover and an outer protective cover, thereby preventing the two from being impacted by water flow and thus reducing the accuracy. At the same time, a driving component is provided to control the rotation of the ultrasonic generator and the ultrasonic receiver, so that the working surfaces of the ultrasonic generator and the ultrasonic receiver are in different positions when they are in different working states, thereby improving the service life of the ultrasonic generator and the ultrasonic receiver.

[0024] The present invention provides a cleaning roller on the shell, the cleaning roller abuts against the surface of the outer protective cover, the cleaning roller can absorb impurities in the pipeline, and the cleaning roller can scrape and clean the impurities attached to the outer protective cover, so that the impurities in the liquid are reduced and the propagation of sound waves is avoided.

[0025] The present invention provides two ultrasonic generators and two ultrasonic receivers, so that when one of them fails, the other ultrasonic generator or ultrasonic receiver that is not failed can be replaced in time, thereby improving replacement efficiency.

[0026] The present invention converts the kinetic energy of liquid flow into electrical energy for storage by arranging a power generation component, and utilizes the stored electrical energy to drive the motor, thereby avoiding energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a multifunctional ultrasonic water meter provided by an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the internal structure of a multifunctional ultrasonic water meter provided in an embodiment of the present invention without a protective shell;

[0029] Figure 3 for Figure 1 A schematic diagram of another angle of the internal structure of a multifunctional ultrasonic water meter provided by an embodiment of the present invention without the protective shell;

[0030] Figure 4 for Figure 2 A right side view of a multifunctional ultrasonic water meter provided in an embodiment;

[0031] Figure 5 for Figure 4 A cross-sectional view of a multifunctional ultrasonic water meter along AA provided in an embodiment;

[0032] Figure 6 for Figure 4 A cross-sectional view of a multifunctional ultrasonic water meter along line BB provided in an embodiment;

[0033] Figure 7 for Figure 6 A partial enlarged view of part X of a multifunctional ultrasonic water meter provided in an embodiment;

[0034] Figure 8 for Figure 2 A front view of a multifunctional ultrasonic water meter provided in an embodiment;

[0035] Fig. 9 for Figure 8 A cross-sectional view of a multifunctional ultrasonic water meter along CC provided in an embodiment;

[0036] Fig.10 for Fig. 9 A partial enlarged view of part Y of the multifunctional ultrasonic water meter provided in one embodiment.

[0037] in:

[0038] 100, housing; 110, protective shell; 120, mounting slot; 130, connecting flange; 140, cleaning roller; 150, display screen;

[0039] 200, ultrasonic generator; 210, ultrasonic receiver; 220, transmission ring; 221, partition; 230, inner protective cover; 240, outer protective cover; 241, connecting shaft; 242, transmission wheel;

[0040] 300, driving motor; 310, first transmission belt; 320, generator; 330, second transmission belt; 340, storage battery. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] Refer to the following Figure 1-Figure 10 To describe a multifunctional ultrasonic water meter provided by the present invention.

[0045] A multifunctional ultrasonic water meter is suitable for detecting flow in a pipeline, comprising a housing 100, the housing 100 can be connected to a pipeline, the liquid in the pipeline flows through the housing 100, a sensor group is arranged on the housing 100, the sensor group is used to detect the flow of the liquid, the sensor group comprises an ultrasonic generator 200 and an ultrasonic receiver 210, the ultrasonic generator 200 is used to emit sound waves, the sound waves are received by the ultrasonic receiver 210 after passing through the liquid in the pipeline, and various data of the liquid are calculated by the propagation time of the sound waves. In order to facilitate the connection of the ultrasonic generator 200 and the ultrasonic receiver 210 to the shell 100, a mounting groove 120 capable of cooperating with the ultrasonic generator 200 and the ultrasonic receiver 210 is provided on the shell 100, and the side wall of the mounting groove 120 is connected to the inside of the pipeline. The ultrasonic generator 200 and the ultrasonic receiver 210 are rotatably connected in the mounting groove 120, and the ultrasonic generator 200 and the ultrasonic receiver 210 both have a working surface (the working surface refers to the side of the ultrasonic generator 200 and the ultrasonic receiver 210 that can generate or receive sound waves) and a non-working surface (the non-working surface refers to the side of the ultrasonic generator 200 and the ultrasonic receiver 210 that cannot generate or receive sound waves).

[0046] A shield assembly is provided on the shell 100, and the shield assembly is used to protect the ultrasonic generator 200 and the ultrasonic receiver 210. The shield assembly includes an inner protective cover 230 and an outer protective cover 240. The inner protective cover 230 is rotatably connected to the outer periphery of the ultrasonic generator 200 and the ultrasonic receiver 210, and the inner protective cover 230 is a hard material (the hard material can be hard plastic), thereby preventing the water flow in the pipeline from impacting the ultrasonic generator 200 and the ultrasonic receiver 210, and the outer protective cover 240 is fixed on the inner protective cover 230. The outer peripheral surface of the outer protective cover 240 is rough and made of a flexible material (the flexible material can be rubber or adsorbent cotton), so that when the liquid in the pipeline impacts the outer protective cover 240, the force can be unloaded by the flexible material, thereby reducing the impact force on the inner protective cover 230. At the same time, the rough surface can enable the liquid to drive the outer protective cover 240 to rotate, and when the outer protective cover 240 rotates, the impact force of the liquid on the inner protective cover 230 is further reduced. At the same time, since the inner protective cover 230 is made of a hard material, it can support the outer protective cover 240 and prevent the outer protective cover 240 from excessive deformation.

[0047] The housing 100 is provided with a driving assembly, which is capable of driving the ultrasonic generator 200 and the ultrasonic receiver 210 to rotate. The driving assembly is configured as follows:

[0048] When the liquid in the pipeline flows, the driving assembly rotates the working surfaces of the ultrasonic generator 200 and the ultrasonic receiver 210 to the direction toward the pipeline axis, that is, the working surfaces face the flowing liquid, so that the ultrasonic generator 200 and the ultrasonic receiver 210 work normally;

[0049] When the liquid in the pipeline stops flowing, that is, when the ultrasonic generator 200 and the ultrasonic receiver 210 are no longer needed to work, the driving component drives the non-working surfaces of the ultrasonic generator 200 and the ultrasonic receiver 210 to rotate in the direction toward the pipeline axis. At this time, the working surface is away from the liquid, thereby effectively protecting the working surface and preventing the working surface from being affected by other factors, thereby increasing the service life of the ultrasonic generator 200 and the ultrasonic receiver 210.

[0050] It should be noted that a protective shell 110 is disposed on the outer side of the housing 100 , and the protective shell 110 covers the driving assembly and the sensor group, thereby playing a protective role.

[0051] By providing a rotating inner protective cover 230 and an outer protective cover 240, the ultrasonic generator 200 and the ultrasonic receiver 210 can be effectively protected to prevent the two from being impacted by the water flow and thus reducing the accuracy. At the same time, a driving component is provided to control the rotation of the ultrasonic generator 200 and the ultrasonic receiver 210, so that the working surfaces of the ultrasonic generator 200 and the ultrasonic receiver 210 are in different positions when they are in different working states, thereby improving the service life of the ultrasonic generator 200 and the ultrasonic receiver 210.

[0052] Specifically, the driving assembly in the present invention includes a driving motor 300 and a first transmission belt 310. The driving motor 300 is fixedly arranged on the housing 100, and the first transmission belt 310 is sleeved on the ultrasonic generator 200, the ultrasonic receiver 210 and the rotating shaft of the driving motor 300. To facilitate the connection between the first transmission belt 310 and the ultrasonic generator 200 and the ultrasonic receiver 210, a transmission ring 220 is connected to the outer periphery of one end of the ultrasonic generator 200 and the ultrasonic receiver 210 extending out of the mounting groove 120, and the first transmission belt 310 is wound around the transmission ring 220. When the driving motor 300 drives the first transmission belt 310 to rotate, the first transmission belt 310 drives the ultrasonic generator 200 and the ultrasonic receiver 210 to rotate, thereby changing the positions of the working surface and the non-working surface on the ultrasonic generator 200 and the ultrasonic receiver 210.

[0053] It should be noted that the driving component is not limited to the above structure. The first transmission belt 310 can also be replaced by a gear, and a gear ring can be fixed on the outer periphery of the transmission ring 220. The meshing of the gear and the gear ring can also realize the function of driving the ultrasonic generator 200 and the ultrasonic receiver 210 to rotate. Of course, other structures can also be used, which are not specifically limited here.

[0054] In a further embodiment, a power generation component is further provided on the housing 100, and the power generation component can generate electricity for the drive motor 300 of the above-mentioned drive component, thereby reducing energy consumption and achieving self-sufficiency.

[0055] Specifically, the power generation component includes a generator 320 and a storage battery 340. The storage battery 340 and the generator 320 are both fixedly arranged on the outside of the shell 100. The electric energy generated by the generator 320 is transmitted to and stored in the storage battery 340. The generator 320 and the storage battery 340 are connected by a wire. It also includes a rectifier and a charging controller. For example, the charging controller can prevent the storage battery 340 from overcharging. When the storage battery 340 reaches the set charging upper limit, the charging controller will automatically cut off the charging current. A second transmission belt 330 is wound around the rotating shaft of the generator 320, and the second transmission belt 330 is also wound around the outer protective cover 240, specifically around the connecting shaft 241 at the lower end of the outer protective cover 240, the connecting shaft 241 is rotatably sealed and arranged at the bottom of the shell 100, and one end of the connecting shaft 241 extends out of the shell 100, and a transmission wheel 242 is coaxially and fixedly connected to the extended end, and the second transmission belt 330 is wound around the transmission wheel 242. When the liquid flow in the pipeline drives the outer protective cover 240 to rotate, the outer protective cover 240 drives the transmission wheel 242 to rotate, and the transmission wheel 242 drives the second transmission belt 330, so that the second transmission belt 330 pulls the rotating shaft of the generator 320 to rotate, and the electric energy generated by the generator 320 is stored in the storage battery 340, and the electric energy stored in the storage battery 340 is used to supply the drive motor 300.

[0056] By providing a generator 320 to convert the kinetic energy of the liquid flow into electrical energy, using a storage battery 340 to store the electrical energy, and then using the storage battery 340 to supply power to the drive motor 300, the energy utilization rate can be greatly improved and the demand for external energy can be reduced.

[0057] In a further embodiment, there are two ultrasonic generators 200, and the two ultrasonic generators 200 are symmetrically arranged in the mounting groove 120. When one of the two ultrasonic generators 200 is working, the other is in a non-working state. That is, when the working surface of one ultrasonic generator 200 faces the axis of the pipeline, the working surface of the other ultrasonic generator 200 is away from the axis of the pipeline. The two ultrasonic generators 200 can be set to be used alternately, or one of them can be used all the time. When one of the ultrasonic generators 200 fails, the two ultrasonic generators 200 are rotated by the driving motor 300 so that the working surface of the other ultrasonic generator 200 faces the axis of the pipeline. At this time, the failed ultrasonic generator 200 can be replaced with a new one. If there is only one ultrasonic generator 200, when the ultrasonic generator 200 fails and needs to be replaced, the liquid flow in the pipeline cannot be detected during the replacement of the new ultrasonic generator 200. The above situation can be avoided by arranging two ultrasonic generators 200 in one mounting groove 120.

[0058] It should be noted that the two ultrasonic generators 200 of the present invention can move axially in the mounting groove 120, and are convenient to take out and install. At the same time, the transmission ring 220 is sleeved on the two ultrasonic generators 200. The transmission ring 220 can only move axially relative to the ultrasonic generator 200, and cannot rotate circumferentially relative to the ultrasonic generator 200. A partition 221 is provided in the mounting groove 120. The partition 221 separates the two ultrasonic transmitters. The partition 221 is fixedly connected to the inner periphery of the transmission ring 220. When the driving motor 300 drives the transmission ring 220 to rotate, it drives the partition 221 to rotate. The two ultrasonic generators 200 on both sides of the partition 221 rotate synchronously. When one of them fails, it can be replaced at any time, which is convenient and quick.

[0059] Similarly, the present invention also has two ultrasonic receivers 210, which are symmetrically arranged in the installation groove 120 and are also separated by a partition 221. The transmission ring 220 is driven by the driving motor 300 at the same time, and the two ultrasonic receivers 210 and the two ultrasonic generators 200 rotate at the same time, so that the ultrasonic receivers 210 and the ultrasonic generators 200 can send and receive sound waves. When one of the ultrasonic receivers 210 fails, the driving motor 300 drives the transmission ring 220 to rotate, and the transmission ring 220 drives the two ultrasonic receivers 210 to exchange positions. At the same time, the two ultrasonic generators 200 also exchange positions to switch the other ultrasonic generator 200 to dock with the ultrasonic receiver 210 that has not failed.

[0060] In a further embodiment, there are two groups of sensor groups of the present invention, and the ultrasonic generators 200 and ultrasonic receivers 210 in each group of sensor groups are arranged alternately, that is, the connection lines of the ultrasonic generators 200 and ultrasonic receivers 210 of one group cross the connection lines of the ultrasonic generators 200 and ultrasonic receivers 210 of the other group. By setting up two groups of sensor groups, the accuracy of detecting the liquid flow in the pipeline can be improved, and after a failure of one group, the other group can still play a detection role.

[0061] In a further embodiment, a cleaning roller 140 is further provided on the shell 100, and the cleaning roller 140 can clean the surface of the outer protective cover 240. Specifically, the cleaning roller 140 is arranged on the side wall of the mounting groove 120, and the outer periphery of the cleaning roller 140 abuts against the surface of the outer protective cover 240. Since the material of the outer protective cover 240 is flexible and the surface is rough, it can absorb impurities in the pipeline liquid. Through the rotation of the outer protective cover 240, the impurities on the surface of the outer protective cover 240 are scraped by the cleaning roller 140, thereby avoiding excessive impurities adsorbed on the outer protective cover 240 and affecting the propagation of sound waves.

[0062] It should be noted that the cleaning roller 140 may be replaced regularly to maintain a good cleaning effect.

[0063] Specifically, a connecting component is further provided on the housing 100 in the embodiment of the present invention, and the connecting component is used to connect the housing 100 to a pipeline, so as to detect the liquid flow in the pipeline.

[0064] The connecting assembly includes two connecting flanges 130, one end of the two connecting flanges 130 is respectively fixed on both sides of the shell 100, and the other end of the two connecting flanges 130 is provided with a plurality of connecting holes, and bolts can be installed in the connecting holes. The connecting flanges 130 on the shell 100 and the connecting flanges 130 on the pipeline can be detachably connected through the bolts, and a sealing gasket needs to be arranged between the connecting flanges 130 on the shell 100 and the connecting flanges 130 on the pipeline to prevent liquid leakage.

[0065] More specifically, a display screen 150 is disposed on the housing 100 . The display screen 150 is electrically connected to the ultrasonic generator 200 and the ultrasonic receiver 210 . The display screen 150 is used to display the liquid data inside the pipeline detected by the ultrasonic generator 200 and the ultrasonic receiver 210 .

[0066] The specific working process of a multifunctional ultrasonic water meter provided by the present invention is described in combination with the above embodiments:

[0067] Install:

[0068] The connection flanges 130 on both sides of the housing 100 are connected to the pipeline, and sealing gaskets are installed at the connection to prevent leakage, and the display screen 150 is opened.

[0069] Work:

[0070] The storage battery 340 supplies power to the driving motor 300, which drives the first transmission belt 310 to rotate. The first transmission belt 310 drives the two ultrasonic generators 200 and the two ultrasonic receivers 210 to rotate synchronously, and stops rotating when the working surfaces of the two ultrasonic generators 200 and the two ultrasonic receivers 210 correspond one to one. The ultrasonic generator 200 and the ultrasonic receiver 210 emit and receive sound wave signals when working. The sound wave signals propagate in the pipeline liquid. Since the ultrasonic signal is superimposed on the water flow signal, the propagation speed of the sound wave in the downstream and upstream is different. Therefore, the running time of the sound wave signals of different ultrasonic generators 200 in the water is different. The flow rate of the fluid can be calculated by measuring the difference in time, and then converted into flow rate, thereby realizing the measurement of flow rate.

[0071] Since the outer peripheries of the two ultrasonic generators 200 and the two ultrasonic receivers 210 are rotatably connected to the inner protective cover 230 made of hard material and the outer protective cover 240 made of flexible material, the liquid flowing in the pipeline can drive the outer protective cover 240 to rotate, and the connecting shaft 241 at the lower end of the outer protective cover 240 drives the second transmission belt 330 to rotate, and the second transmission belt 330 pulls the rotating shaft of the generator 320 to rotate, and the electric energy generated by the generator 320 is stored in the storage battery 340, and the storage battery 340 then supplies power to the drive motor 300, thereby realizing the recycling of energy and reducing energy waste.

[0072] Non-Working:

[0073] When the liquid in the pipeline stops flowing, the detection needs to be stopped. At this time, the driving motor 300 drives the first transmission belt 310 to rotate, and the first transmission belt 310 drives the two ultrasonic generators 200 and the two ultrasonic receivers 210 to rotate, so that the non-working surfaces of the two ultrasonic generators 200 and the two ultrasonic receivers 210 face the axial direction of the pipeline, thereby effectively protecting the working surfaces of the two ultrasonic generators 200 and the two ultrasonic receivers 210, avoiding the working surfaces from being affected by other factors, and thus improving the service life of the ultrasonic generator 200 and the ultrasonic receiver 210.

[0074] clean:

[0075] Since the outer protective cover 240 is driven to rotate by the liquid and the surface of the outer protective cover 240 is rough, it can absorb impurities in the liquid. At the same time, a cleaning roller 140 is provided on the side wall of the mounting groove 120. The outer periphery of the cleaning roller 140 abuts against the outer periphery of the outer protective cover 240, so the outer protective cover 240 can be scraped by the cleaning roller 140 when it rotates. The cleaning roller 140 collects the impurities and thus avoids excessive impurities adhering to the surface of the outer protective cover 240 and affecting the detection accuracy. The cleaning roller 140 is replaced regularly with a new one to maintain a good cleaning effect.

[0076] Failure occurred:

[0077] If one of the two ultrasonic generators 200 or one of the two ultrasonic receivers 210 fails, the driving motor 300 drives the first transmission belt 310 to rotate, the first transmission belt 310 pulls the transmission ring 220 to rotate, and the transmission ring 220 drives the two ultrasonic generators 200 and the two ultrasonic receivers 210 to rotate, so that the working surface of the failed ultrasonic generator 200 or ultrasonic receiver 210 is away from the pipeline axis, and the working surface of the intact ultrasonic generator 200 and ultrasonic receiver 210 is facing the pipeline axis direction, and the detection continues. At this time, the failed ultrasonic generator 200 or ultrasonic receiver 210 can be replaced with a new one as a spare.

[0078] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A multifunctional ultrasonic water meter, characterized in that: include: A shell, the shell can be connected to a pipeline, the shell is provided with a sensor group, the sensor group includes an ultrasonic generator and an ultrasonic receiver, the ultrasonic generator and the ultrasonic receiver are partially located in the shell, and the parts of the ultrasonic generator and the ultrasonic receiver located in the shell both have a working surface and a non-working surface; A shield assembly, the shield assembly comprising an outer protective shield and an inner protective shield, the inner protective shield being rotatably arranged on the periphery of the ultrasonic generator and the ultrasonic receiver, the inner protective shield being made of a hard material, the outer protective shield being fixed on the periphery of the inner protective shield, the outer protective shield having a rough surface and being made of a flexible material; A driving assembly, the driving assembly is used to drive the ultrasonic generator and the ultrasonic receiver to rotate, and the driving assembly is configured as follows: When the liquid in the pipeline flows, the driving component drives the working surfaces of the ultrasonic generator and the ultrasonic receiver toward the pipeline axis direction; When the internal liquid stops flowing, the driving assembly drives the non-working surfaces of the ultrasonic generator and the ultrasonic receiver toward the pipeline axis.

2. The multifunctional ultrasonic water meter according to claim 1, characterized in that: The driving assembly includes a driving motor and a first transmission belt. The driving motor is fixedly arranged on the outside of the shell. The first transmission belt is wound around the ultrasonic generator, the ultrasonic receiver and the rotating shaft of the driving motor. The driving motor drives the first transmission belt to rotate, and the first transmission belt pulls the ultrasonic generator and the ultrasonic receiver to rotate.

3. The multifunctional ultrasonic water meter according to claim 2, characterized in that: A power generation component is also disposed outside the shell, and the power generation component can provide electrical energy to the drive motor.

4. The multifunctional ultrasonic water meter according to claim 3, characterized in that: The power generation component includes a generator and a storage battery, which are both fixedly connected to the shell, and the generator is electrically connected to the storage battery. A second transmission belt is wound around the rotating shaft of the generator, and the second transmission belt is sleeved on the outer protective cover. The flow of liquid in the pipeline drives the outer protective cover to rotate to drive the second transmission belt to rotate, and the second transmission belt pulls the generator to rotate.

5. The multifunctional ultrasonic water meter according to claim 1, characterized in that: The ultrasonic generators include two ultrasonic generators which are symmetrically arranged. When one of the two ultrasonic generators is in operation, the other is in a non-operating state.

6. The multifunctional ultrasonic water meter according to claim 1, characterized in that: The ultrasonic wave generating receivers include two, which are symmetrically arranged, and when one of the two ultrasonic wave receivers is in operation, the other is in a non-operating state.

7. The multifunctional ultrasonic water meter according to claim 1, characterized in that: A cleaning roller is arranged on the housing, the cleaning roller abuts against the outer protective cover, and the cleaning roller can scrape the surface of the outer protective cover.

8. The multifunctional ultrasonic water meter according to claim 1, characterized in that: The shell is provided with a connecting assembly, and the connecting assembly is used for sealingly connecting the pipeline.

9. The multifunctional ultrasonic water meter according to claim 8, characterized in that: The connection assembly comprises two connection flanges, one end of each of the two connection flanges is fixedly arranged on the shell, and the other end of each of the two connection flanges is detachably arranged on the pipeline.

10. The multifunctional ultrasonic water meter according to claim 1, characterized in that: The shell is also provided with a display screen, which is electrically connected to the ultrasonic generator and the ultrasonic receiver, and can display the liquid data in the pipeline.

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