Ultrasonic integrated flowmeter

Abstract

The utility model belongs to the technical field of flow meters, and particularly relates to an ultrasonic integrated flow meter. The flowmeter comprises a shell, a fluid pipeline, an ultrasonic transceiving device, a control device, a power supply device and a flow regulating valve, the power supply device provides electric energy for the ultrasonic transceiving device, the flow regulating valve and the control device, and the control device is in communication connection with the ultrasonic transceiving device and the flow regulating valve; the fluid pipeline comprises a liquid inlet pipeline, a first pipeline, a second pipeline and a liquid outlet pipeline which are sequentially communicated, the ultrasonic transceiving device is mounted in the first pipeline, and the flow regulating valve is mounted in the second pipeline. The ultrasonic transceiving device and the flow regulating valve are both assembled in the flow meter, the first pipeline and the second pipeline are communicated end to end, a signal transmission path is short and is transmitted in the flow meter, the probability of external environment interference is small, and debugging, calibration, maintenance and maintenance time is shortened while precision, accuracy and stability are guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of flow meters, and particularly relates to an ultrasonic integrated flow meter. BACKGROUND

[0002] An ultrasonic flow meter uses a pair of ultrasonic transducers to alternately (or simultaneously) transmit and receive ultrasonic waves in opposite directions, indirectly measures the flow rate of a fluid by observing the time difference between the forward and reverse propagation of ultrasonic waves in the medium, and calculates the flow rate through the flow rate. The ultrasonic flow meter is often used with a flow regulating valve. According to the flow information provided by the ultrasonic flow meter, the actual flow is continuously corrected to the set value through the flow regulating valve, so that the entire system can stably and accurately regulate the flow to meet the production needs of the petroleum, chemical, water treatment, heating, air conditioning and other fields.

[0003] At present, the existing ultrasonic flow meter and flow regulating valve are two independent products. On the one hand, the ultrasonic flow meter and the flow regulating valve need to be debugged and calibrated respectively after installation, which increases the workload and complexity, and improper debugging or inaccurate calibration may cause the accuracy of the entire control system to decrease. On the other hand, the signal transmission between the ultrasonic flow meter and the flow regulating valve needs to be stable and reliable. The signal transmission path of the two independent products may be disturbed by the external environment, thereby affecting the stability and accuracy of the signal. On the other hand, regular maintenance and maintenance need to be carried out respectively, which increases the maintenance cost and time.

[0004] Based on the above problems, it is necessary to provide an ultrasonic integrated flow meter which integrates the ultrasonic flow meter and the flow regulating valve into one product. Invention content

[0005] The purpose of the present application is to provide an ultrasonic integrated flow meter which integrates the ultrasonic flow meter and the flow regulating valve into one product.

[0006] The embodiments of the present application can be realized by the following technical solutions:

[0007] An ultrasonic integrated flow meter, comprising a housing, a fluid pipeline, an ultrasonic transceiver device, a control device and a power supply device, further comprising a flow regulating valve, the power supply device provides electric energy for the ultrasonic transceiver device, the flow regulating valve and the control device, the control device is in communication connection with the ultrasonic transceiver device and the flow regulating valve.

[0008] The fluid pipeline comprises a liquid inlet pipeline, a first pipeline, a second pipeline and a liquid outlet pipeline which are sequentially connected, the ultrasonic transceiver device is installed in the first pipeline, and the flow regulating valve is installed in the second pipeline.

[0009] Further, the ultrasonic transceiver device comprises two ultrasonic transducers arranged oppositely, and the two ultrasonic transducers are respectively connected to two ends of the first pipeline along the axial direction of the first pipeline.

[0010] The axial direction of the first pipeline is parallel to the propagation direction of the ultrasonic wave generated by the ultrasonic transceiver device.

[0011] Preferably, the first pipeline is arranged obliquely and non-parallel to the liquid inlet pipeline.

[0012] Further, the flow regulating valve comprises a driving structure and a ceramic sheet, the input end of the driving structure is connected to the control device, the output end is connected to the ceramic sheet, and the ceramic sheet is located at the intersection of the second pipeline and the liquid outlet pipeline.

[0013] Further, the shell comprises a shell body and a first end cover, the first end cover is clamped to the outer side of the shell body, and the first end cover is sealingly connected to the shell body through a fourth sealing structure.

[0014] The fourth sealing structure is sleeved on the first end cover or the shell body, and the first end cover and the shell body form a space for extruding the fourth sealing structure.

[0015] Further, a display device is further included, the display device comprises a display, a first circuit board and a second circuit board, the display is installed on the first circuit board, and only the circuit connected with the display is provided on the first circuit board, and other circuits are connected to the second circuit board.

[0016] Further, the shell comprises a first limiting structure and a second limiting structure, the first limiting structure and the second limiting structure are connected to the inner wall of the shell and located on the upper and lower sides of the second circuit board, and the bottom end and the peripheral side of the second limiting structure are provided with a certain gap with the adjacent structure.

[0017] Further, the display device further comprises a mounting structure, the mounting structure is matched with the cavity structure of the shell where the display device is mounted, the first circuit board and the second circuit board are installed in parallel in the mounting structure, the top end of the mounting structure is connected to the shell, and the bottom end and the peripheral side of the mounting structure are sealingly connected to the inner wall of the shell through a sealing structure.

[0018] Further, the display device further comprises a turning adjusting structure, the turning adjusting structure is located between the mounting structure and the shell, and the mounting structure can rotate relative to the shell.

[0019] The steering adjusting structure comprises a plurality of circumferentially distributed adjusting grooves and elastic limiting parts, and the mounting structure drives the adjusting grooves to rotate relative to the elastic limiting parts or drives the elastic limiting parts to rotate relative to the adjusting grooves.

[0020] Further, the elastic limiting part comprises an elastic part and a second matching part connected to one end of the elastic part towards the adjusting groove, and the second matching part is elastically abutted and matched with the plurality of adjusting grooves through the elastic part.

[0021] The embodiment of the present application provides an ultrasonic integrated flowmeter with at least the following beneficial effects:

[0022] In the present application, the ultrasonic transceiver device and the flow regulating valve are both arranged in the flowmeter, the first pipeline provided with the ultrasonic transceiver device and the second pipeline provided with the flow regulating valve are connected in a head-to-tail manner, the signal transmission path is short and all the transmission is in the flowmeter, the probability of external environment interference is small, and the debugging, calibration, maintenance and maintenance can be performed together, thereby reducing the time for debugging, calibration, maintenance and maintenance while ensuring the precision, accuracy and stability;

[0023] In the present application, the liquid flow direction in the first pipeline is consistent with the ultrasonic wave propagation direction generated by the ultrasonic transceiver device, so that the propagation path of the sound wave and the flow path of the liquid have a coincident segment. On the one hand, the ultrasonic wave can be transmitted forward and backward without being reflected by a reflecting plate; on the other hand, the effective length of ultrasonic wave transmission is ensured, thereby ensuring the sensitivity of the ultrasonic transceiver device in measuring the liquid flow information.

[0024] In the present application, the first end cover and the shell are stably connected through extrusion to realize the fourth sealing structure, thereby avoiding the problem of high limitation of installing the fourth sealing structure through the limiting groove, and the first end cover and the shell of square, rhombus and other polygons or other regular or irregular shapes have good adaptability and stability.

[0025] In the present application, the circuit board corresponding to the display device is subjected to layering treatment, only the circuit connected with the display is arranged on the first circuit board, and other circuits are connected to the second circuit board, thereby avoiding the problem of circuit disorder caused by connecting all the circuits to the first circuit board.

[0026] In the present application, the display device is flexibly connected to the shell through the steering adjusting structure, and the display is rotatable by 360° relative to the cross section of the shell, so that the user can conveniently and timely adjust the display to an angle facilitating reading. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a whole structure diagram of the ultrasonic integrated flowmeter in the present application.

[0028] Figure 2 isometric view of an ultrasonic integrated flow meter in the present application;

[0029] Figure 3 isometric view of an ultrasonic integrated flow meter in the present application;

[0030] Figure 4 isometric view of an ultrasonic integrated flow meter in the present application;

[0031] Figure 5 isometric view of an ultrasonic integrated flow meter in the present application;

[0032] Figure 6 isometric view of an ultrasonic integrated flow meter in the present application;

[0033] Figure 7 isometric view of an ultrasonic integrated flow meter in the present application; Figure 6 isometric view of an ultrasonic integrated flow meter in the present application;

[0034] Figure 8 isometric view of an ultrasonic integrated flow meter in the present application;

[0035] Figure 9 isometric view of an ultrasonic integrated flow meter in the present application; Figure 8 isometric view of an ultrasonic integrated flow meter in the present application;

[0036] Reference signs: housing 1, shell 11, first wire slot 12, first end cover 13, cover body 131, first extension 132, fourth sealing structure 14, second extension 15, inner recess 16, outer recess 17, first limiting structure 18, second limiting structure 19, fluid pipeline 2, liquid inlet pipeline 21, first pipeline 22, second pipeline 23, liquid outlet pipeline 24, ultrasonic transceiver 3, flow regulating valve 4, driving structure 41, ceramic sheet 42, first sealing structure 43, second sealing structure 44, third sealing structure 45, power supply device 5, display device 6, display 61, first circuit board 62, second circuit board 63, steering adjusting structure 64, adjusting slot 641, elastic limiting part 642, elastic part 6421, second matching part 6422, guide part 643, mounting structure 65. DETAILED DESCRIPTION

[0037] Hereinafter, the present application will be further described based on the preferred embodiments and with reference to the accompanying drawings.

[0038] The vocabulary used in this specification is for illustrative purposes and is not intended to limit the scope of this application. Unless otherwise expressly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection via an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of these terms in this application.

[0039] Furthermore, in the description of the embodiments of this application, various components on the drawings have been enlarged or reduced for ease of understanding, but this is not intended to limit the scope of protection of this application.

[0040] Figures 1-3 The overall structural diagram, exploded view, and cross-sectional view of an integrated ultrasonic flow meter according to this application are shown respectively, as follows: Figures 1-3 As shown, the flow meter includes a housing 1, a fluid pipeline 2, an ultrasonic transceiver 3, a flow regulating valve 4, a control device, and a power supply device 5. The power supply device 5 provides electrical energy to the ultrasonic transceiver 3, the flow regulating valve 4, and the control device. The control device is communicatively connected to the ultrasonic transceiver 3 and the flow regulating valve 4. The housing 1 contains a fluid pipeline 2 for liquid flow and a space for installing the ultrasonic transceiver 3, the flow regulating valve 4, and the control device. The fluid pipeline 2 includes an inlet pipeline 21, a first pipeline 22, a second pipeline 23, and an outlet pipeline 24 connected in sequence. The ultrasonic transceiver 3 is installed in the first pipeline 22, and the flow regulating valve 4 is installed in the second pipeline 23. The ultrasonic transceiver 3 can measure the liquid flow rate information flowing from the inlet pipeline 21 into the first pipeline 22 and transmit it to the control device. The control device compares the liquid flow rate information measured by the ultrasonic transceiver 3 with a set value and controls the flow regulating valve 4 to adjust the liquid flow rate output from the second pipeline 23 to the outlet pipeline 24. During operation, the flow meter continuously compares the actual flow rate measured by the ultrasonic transceiver 3 with the set value and controls the opening of the flow regulating valve 4 based on the deviation, thereby controlling the liquid flow rate output from the outlet pipe 24 and ensuring the accuracy and precision of flow control. Furthermore, both the ultrasonic transceiver 3 and the flow regulating valve 4 are located within the flow meter, and the first pipe 22 containing the ultrasonic transceiver 3 and the second pipe 23 containing the flow regulating valve 4 are connected end-to-end. This results in a short signal transmission path, with all signals transmitted within the flow meter, minimizing the probability of interference from the external environment. Additionally, debugging, calibration, maintenance, and upkeep can be performed simultaneously, reducing the time required for debugging, calibration, maintenance, and upkeep while ensuring accuracy, precision, and stability.

[0041] Specifically, the ultrasonic transceiver 3 comprises two ultrasonic transducers arranged oppositely and connected to two ends of the first pipe 22 along the axial direction of the first pipe 22, and can transmit and receive ultrasonic signals to each other.

[0042] In some preferred embodiments of the present application, in order to ensure the stability, safety and aesthetics of the electrical connection between the ultrasonic transceiver 3 and the control device, as shown in Figure 1 The shell 1 comprises a housing 11 and a first wire slot 12, the position of the first wire slot 12 corresponds to the position of the first pipe 22, and the wires of the ultrasonic transceiver 3 are buried in the housing 11 through the first wire slot 12 to realize electrical connection with other devices.

[0043] In some preferred embodiments of the present application, the axial direction of the first pipe 22 is parallel to the propagation direction of the ultrasonic waves generated by the ultrasonic transceiver 3, so that the propagation path of the ultrasonic waves coincides with the flow path of the liquid. On the one hand, without the need for reflection by a reflection plate, the ultrasonic waves can be transmitted forward and backward; on the other hand, the effective length of the ultrasonic wave transmission is ensured, thereby ensuring the sensitivity of the ultrasonic transceiver 3 in measuring the liquid flow information.

[0044] In some specific embodiments of the present application, for example, Figure 3 Taking the extension direction of the liquid inlet pipe 21 as the positive direction, the first pipe 22 is arranged obliquely and non-parallel to the liquid inlet pipe 21, and the first pipe 22 is a through pipe. The first pipe 22 does not need to be installed with a reflection plate, which reduces the transmission error of the ultrasonic waves, and the parallelism of the ultrasonic waves and the flow direction also reduces the abnormal loss of the ultrasonic waves caused by the water flow.

[0045] In some preferred embodiments of the present application, the first pipe 22 intersects with the liquid inlet pipe 21 at an acute angle. The cross-sectional area at the intersection position of the first pipe 22 and the liquid inlet pipe 21 is greater than the cross-sectional area of the liquid inlet pipe 21, which increases the water inflow and avoids the generation of flow resistance.

[0046] In some preferred embodiments of the present application, the liquid inlet pipe 21 and the liquid outlet pipe 24 are located on the same horizontal line. This setting is more in line with the installation of existing pipe valves, without the need for additional installation components, which can simplify the installation process, reduce the installation difficulty, and also be conducive to subsequent maintenance and repair work.

[0047] It can be imagined that the flow regulating valve 4 can be a valve body such as a ceramic valve, a ball valve, a gate valve, a stop valve and a butterfly valve, as long as it can realize the regulation of flow.

[0048] In some preferred embodiments of the present application, as shown in Figure 3As shown, the flow regulating valve 4 in the present application is a ceramic valve, which has extremely high chemical stability, hardness, wear resistance, corrosion resistance, and erosion resistance, and good thermal insulation and small thermal expansion, and is widely used in various scenarios.

[0049] Further, the flow regulating valve 4 comprises a driving structure 41 and a ceramic sheet 42, the input end of the driving structure 41 is connected with the control device, the output end is connected with the ceramic sheet 42, the ceramic sheet 42 is connected at the intersection position of the second pipeline 23 and the liquid outlet pipeline 24, the control device transmits an electric signal to the driving structure 41, the driving structure 41 drives the ceramic sheet 42 to move, so as to control the opening, closing or adjustment of the flow of the second pipeline 23 flowing out to the liquid outlet pipeline 24.

[0050] Further, in order to prevent the liquid in the second pipeline 23 from leaking from the flow regulating valve 4 to the shell 1, affecting the normal use, service life and precision of the driving structure 41, the control device, the power supply device 5 and other structures, the bottom outer periphery of the ceramic sheet 42 is in interference fit with the second pipeline 23 through the first sealing structure 43, the outer periphery of the driving structure 41 is in interference fit with the second pipeline 23 through the second sealing structure 44, and the output shaft housing of the driving structure 41 is in interference fit with the housing of the driving structure 41 through the third sealing structure 45, so as to realize the sealed connection of the flow regulating valve 4 and the second pipeline 23.

[0051] In some specific embodiments of the present application, the first sealing structure 43, the second sealing structure 44 and the third sealing structure 45 are sealing ring structures, which are provided with grooves accommodating them at corresponding positions, so as to limit the first sealing structure 43, the second sealing structure 44 and the third sealing structure 45 and realize interference sealing connection with other structures. The sealing ring has the advantages of convenient installation, light weight and low cost. It can be imagined that the first sealing structure 43, the second sealing structure 44 and the third sealing structure 45 can also be packing sealing structure, metal sealing structure, bellows sealing structure and the like. No matter what structure is adopted, as long as the sealed connection of the flow regulating valve 4 and the second pipeline 23 can be realized.

[0052] In some preferred embodiments of the present application, the output shaft of the driving structure 41 and the corresponding position of the liquid outlet pipeline 24 are in a waist-shaped structure, so that the cavity of the liquid outlet pipeline 24 at the corresponding position of the output shaft is larger, providing a larger flow regulating space.

[0053] In some preferred embodiments of the present application, in order to ensure the compactness of the flow meter, the extension direction of the second pipeline 23 and the flow regulating valve 4 is perpendicular to the extension direction of the liquid inlet pipeline 21.

[0054] Further, in order to ensure the installation stability of the driving structure 41, the control device and other structures in the shell 1, the outer periphery of the driving structure 41 is in interference fit with the inner wall of the shell 1 through the fourth sealing structure 46, so as to realize the sealed connection of the driving structure 41 and the shell 1. Figure 2 , Figure 3 ,Figure 4 As shown, the outer shell 1 further comprises a first end cover 13, which is clamped to the outer side of the shell body 11 and is arranged opposite to the control device.

[0055] Further, since the flow meter is connected between the fluid pipes, water and other fluids inevitably exist on the side of the outer shell 1. In order to further protect the driving structure 41 and the control device, the first end cover 13 is sealingly connected to the shell body 11 through the fourth sealing structure 14.

[0056] It can be imagined that the first end cover 13 and the shell body 11 can be sealingly connected through the fourth sealing structure 14 by means of opening a limiting groove, which can accommodate the fourth sealing structure 14 and is in interference fit with the first end cover 13 and the shell body 11. However, this connection mode has the problems of high limitation and the need to additionally open a limiting groove.

[0057] In some preferred embodiments of the present application, as shown in Figure 2 , Figure 3 , Figure 4 and Figure 5 , the fourth sealing structure 14 is sleeved on the first end cover 13 or the shell body 11, the first end cover 13 and the shell body 11 form a space for accommodating the extruded fourth sealing structure 14, and the first end cover 13 and the shell body 11 are stably connected through the extrusion of the fourth sealing structure 14, thereby avoiding the problem of high limitation of the fourth sealing structure 14 installed by opening a limiting groove. In addition, the first end cover 13 and the shell body 11 have good adaptability and stability for square, diamond and other polygonal or other regular or irregular shapes.

[0058] In some specific embodiments of the present application, the fourth sealing structure 14 in the present application is sleeved on the first end cover 13.

[0059] In some specific embodiments of the present application, the first end cover 13 comprises a cover body 131 and a first extension 132 connected to one end of the cover body 131, the first extension 132 extends towards the inner side of the shell body 11, the outer shell 1 further comprises an outwardly recessed portion 17, a second extension 15 and an inwardly recessed portion 16 arranged in sequence from the outer side to the inner side of the outer shell 1, the outer diameter of the first extension 132 is smaller than the outer diameter of the cover body 131, the outer diameter of the first extension 132 is smaller than the inner diameter of the second extension 15, the height of the inwardly recessed portion 16 and the outwardly recessed portion 17 is lower than the height of the second extension 15, the cross section of the inwardly recessed portion 16 is a trapezoidal structure, the top end of the upper ladder abuts against the fourth sealing structure 14, the top end of the lower ladder abuts against the bottom end of the first extension 132, the outer side of the fourth sealing structure 14 abuts against the inner side of the outwardly recessed portion 17, and the inner side abuts against the outer side of the first extension 132, thereby realizing the sealing extrusion connection of the fourth sealing structure 14.

[0060] In some preferred embodiments of the present application, the side of the cover 131 facing the inside of the shell 11 is provided with a reinforcing rib to ensure the support stability of the first end cover 13.

[0061] In some preferred embodiments of the present application, the flow meter further comprises a display device 6, which is electrically connected with the power supply device 5 and the control device, for displaying the fluid flow size measured by the ultrasonic transceiver device 3, to facilitate the user to intuitively obtain real-time flow data.

[0062] Further, the display device 6 comprises a display 61.

[0063] In some preferred embodiments of the present application, as there are many lines in the flow meter, to ensure the clarity and neatness of the lines, the corresponding line board at the display device 6 is processed in layers, including a first line board 62 and a second line board 63 arranged in sequence, the display 61 is installed on the first line board 62, and only the lines connected with the display 61 are provided on the first line board 62, and other lines are connected on the second line board 63, avoiding the problem of line disorder caused by connecting all lines on the first line board 62.

[0064] It can be imagined that, to realize the connection between the second line board 63 and the shell 11, the shell 1 can ensure the stability of the connection between the two by setting one or more limiting structures, clamping structures, etc.

[0065] In some specific embodiments of the present application, as shown in Figure 4 the shell 1 further comprises a first limiting structure 18 and a second limiting structure 19, both of which are connected to the inner wall of the shell 11 and located on the upper and lower sides of the second line board 63 to limit the second line board 63.

[0066] In some preferred embodiments of the present application, the side and the bottom end of the second limiting structure 19 are provided with a certain gap with the adjacent structures, to provide a certain displacement space for the second limiting structure 19, improve the stability and durability of the structure, and facilitate installation and maintenance.

[0067] Further, the shell 1 further comprises a first matching part, which is located at the bottom of the second limiting structure 19, the bottom end of which is connected with the inner wall of the shell 11, and a V-shaped groove is provided on the top thereof, which abuts against the bottom of the second limiting structure 19. The first matching part ensures that the bottom of the second limiting structure 19 does not directly contact other structures except the first matching part, ensuring that the bottom end of the second limiting structure 19 does not completely contact other adjacent structures, leaving a certain displacement space. It can be imagined that the second limiting structure 19 can also be connected with other structures on the shell 11 or other structures by setting connecting or limiting structures on the shell 11 or other structures, to ensure that the bottom end of the second limiting structure 19 leaves a certain gap with other adjacent structures.

[0068] In some specific embodiments of the present application, in order to realize the stable connection of the display device 6 and the shell 11, the display device 6 further comprises a mounting structure 65 matched with the cavity position structure of the shell 11 where the display device 6 is mounted, and the first circuit board 62 and the second circuit board 63 arranged in parallel are mounted in the mounting structure 65, and the bottom end of the peripheral side is sealed and connected with the inner wall of the shell 11 through the sealing structure, which ensures the stable connection with the shell 11 while maintaining the water-tight connection between the two. It needs to be specially pointed out that through the cooperation of the first circuit board 62, the second circuit board 63 and the mounting structure 65, only the circuit connected with the display 61 is left on the first circuit board 62, and when the user rotates the rotation adjusting structure 64 to adjust the angle of the display 61, the user will not cause the entanglement and knotting of the circuit.

[0069] Further, in the actual installation and use process, there is a problem: although the user can intuitively observe the flow data through the display 61, the standing position of the observer is not fixed. If the display direction of the display 61 is fixed, only the user in a specific position can observe the positive and neat flow data, and the users in other positions may encounter the problem of inconvenient reading.

[0070] It can be imagined that this problem can be solved by a multi-screen display system, a rotating support, a touch screen display, and a virtual display technology, but the above-mentioned ways have the problems of difficult installation, complex structure, and high cost.

[0071] In some preferred embodiments of the present application, as shown in Figure 6 The display device 6 further comprises a rotation adjusting structure 64, and the display device 6 is rotatably and multi-positionally connected with the shell 11 through the rotation adjusting structure 64, realizing the 360° rotation of the display 61 relative to the cross section of the shell 11, and the user can conveniently and timely adjust the display 61 to the angle convenient for reading.

[0072] Further, as shown in Figure 7As shown, the rotation adjusting structure 64 is located between the mounting structure 65 and the inner wall of the shell 11, and comprises a plurality of circumferentially distributed adjusting grooves 641 and elastic limiting portions 642. During rotation relative to the shell 11, the mounting structure 65 drives the adjusting grooves 641 to rotate relative to the elastic limiting portions 642, or drives the elastic limiting portions 642 to rotate relative to the adjusting grooves 641. When the elastic limiting portions 642 are rotated to the ends of the adjusting grooves 641, the elastic limiting portions 642 are subjected to the least extrusion force, and are in a relatively or completely natural state, so that the mounting structure 65 and the shell 11 are relatively fixed in position. When the rotation continues, the elastic limiting portions 642 are subjected to gradually increasing extrusion force, and gradually move out of the adjusting grooves 641, and when the rotation continues, the elastic limiting portions 642 are subjected to gradually decreasing extrusion force, and gradually rotate into another adjusting groove 641. In this way, the elastic limiting portions 642 are relatively fixed in the different adjusting grooves 641, so as to realize rotation while ensuring relatively stable connection of the multiple stops, thereby facilitating reading by users at different angles.

[0073] In some preferred embodiments of the present application, the adjusting grooves 641 are formed on the end face of the rotation adjusting structure 64 facing the shell 11, and the end face is a planar structure. Forming the adjusting grooves 641 on the end face facilitates processing, and there is no need to additionally provide other structures in the shell 11 for forming the adjusting grooves 641.

[0074] In some specific embodiments of the present application, the elastic limiting portions 642 comprise elastic portions 6421 and second matching portions 6422, the second matching portions 6422 are connected to one end of the elastic portions 6421 facing the adjusting grooves 641, and the second matching portions 6422 are elastically abutted and matched with the adjusting grooves 641 through the elastic portions 6421, so that the user feels a click during rotation and emits a clicking sound, and the angle of the display 61 relative to the user can be gradually adjusted.

[0075] It can be imagined that the elastic portions 6421 can be elastic elements such as springs, clockwork, hairspring, single diaphragm, etc. No matter what kind of elastic element is used, as long as it has elastic deformation capability while being connected to the second matching portions 6422.

[0076] As shown in the accompanying drawings, Figure 7 In some specific embodiments of the present application, the elastic portions 6421 are coil springs, which have the advantages of no need for lubrication, strong dirt resistance, small occupation of longitudinal space, small mass, and low cost.

[0077] It can be imagined that the shape of the adjusting grooves 641 can match or not match the shape of the second matching portions 6422.

[0078] It can be imagined that the second matching part 6422 can be a regular figure such as a square or a sphere, or can be an irregular shape.

[0079] In some preferred embodiments of the present application, the second matching part 6422 is a spherical structure, and the adjusting groove 641 is a semispherical groove structure. During rotation, the extrusion force on the second matching part 6422 gradually changes during elastic abutment with the adjusting groove 641, avoiding vibration and instability caused by a sharp change in the extrusion force, improving the stability, precision and reliability of the structure, and reducing the risk of structural damage.

[0080] In some preferred embodiments of the present application, as shown in Figure 8 and Figure 9 To ensure the stability and consistency of the deformation direction of the elastic part 6421, the steering adjusting structure 64 further includes a guide part 643, which is a closed cylinder structure with one end connected to the inner wall of the shell 11, and the elastic limiting part 642 is connected inside the guide part 643. Under the action of the extrusion force, the second matching part 6422 can reciprocate along the axis direction of the guide part 643. The guide part 643 can significantly enhance the structural stability of the elastic limiting part 642, optimize the force transmission path, improve the dynamic performance, enhance the adaptability and prolong the service life.

[0081] In some specific embodiments of the present application, the ultrasonic transceiver device 3, the flow regulating valve 4 and the control device can be equipped with their own power supply device 5 to meet their own energy needs, or the ultrasonic transceiver device 3, the flow regulating valve 4 and the control device can be provided with power by the same power supply device 5. No matter how the position and number of the power supply device 5 are set, as long as it can provide power to the ultrasonic transceiver device 3, the flow regulating valve 4 and the control device.

[0082] In some preferred embodiments of the present application, as shown in Figure 4 The power supply device 5 is an active element, which does not require external wiring, reducing the complexity of wiring, reducing installation cost and time, and improving installation flexibility.

[0083] Further, to ensure the normal use and service life of the power supply device 5, the power supply device 5 needs to be sealed and connected. The end cover corresponding to the power supply device 5 is sealed and connected to the inner wall of the shell 11 through a sealing structure. It can be imagined that the sealing connection can be achieved by opening a limiting groove to accommodate the sealing structure, or the sealing connection can be achieved by extrusion connection.

[0084] The specific implementation ways of the present application are described in detail above, and for the person skilled in the art, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also belong to the protection scope of the claims of the present application.

Claims

1. An ultrasonic integrated flowmeter, comprising a housing (1), a fluid pipeline (2), an ultrasonic transceiver (3), a control device and a power supply device (5), characterized in that: a flow regulating valve (4) is further included, the power supply device (5) provides electric energy for the ultrasonic transceiver (3), the flow regulating valve (4) and the control device, and the control device is in communication connection with the ultrasonic transceiver (3) and the flow regulating valve (4); the fluid pipeline (2) comprises a liquid inlet pipeline (21), a first pipeline (22), a second pipeline (23) and a liquid outlet pipeline (24) in sequence, the ultrasonic transceiver (3) is installed in the first pipeline (22), and the flow regulating valve (4) is installed in the second pipeline (23).

2. The ultrasonic integrated flowmeter according to claim 1, characterized in that: the ultrasonic transceiver (3) comprises two ultrasonic transducers arranged oppositely, and the two ultrasonic transducers are respectively connected to two ends of the first pipeline (22) along the axial direction of the first pipeline (22); the axial direction of the first pipeline (22) is parallel to the propagation direction of the ultrasonic wave generated by the ultrasonic transceiver (3).

3. The ultrasonic integrated flowmeter according to claim 2, characterized in that: the first pipeline (22) is arranged obliquely and non-parallel to the liquid inlet pipeline (21).

4. The ultrasonic integrated flowmeter according to claim 1, characterized in that: the flow regulating valve (4) comprises a driving structure (41) and a ceramic sheet (42), the input end of the driving structure (41) is connected to the control device, the output end is connected to the ceramic sheet (42), and the ceramic sheet (42) is located at the intersection position of the second pipeline (23) and the liquid outlet pipeline (24).

5. The ultrasonic integrated flowmeter according to claim 1, characterized in that: the housing (1) comprises a shell (11) and a first end cover (13), the first end cover (13) is clamped on the outer side of the shell (11), and the first end cover (13) is in sealed connection with the shell (11) through a fourth sealing structure (14); the fourth sealing structure (14) is sleeved on the first end cover (13) or the shell (11), and the first end cover (13) and the shell (11) form a space for extruding the fourth sealing structure (14).

6. The ultrasonic integrated flowmeter according to claim 1, characterized in that: further comprising a display device (6), the display device (6) comprises a display (61), a first circuit board (62) and a second circuit board (63), the display (61) is installed on the first circuit board (62), and only the circuit connected with the display (61) is provided on the first circuit board (62), and other circuits are connected on the second circuit board (63).

7. The ultrasonic integrated flowmeter according to claim 6, characterized in that: ​ The shell (1) comprises a first limiting structure (18) and a second limiting structure (19), both of which are connected to the inner wall of the shell (1) and located on the upper and lower sides of the second circuit board (63), and the bottom end and the peripheral side of the second limiting structure (19) are provided with a certain gap with the adjacent structure.

8. The ultrasonic integrated flow meter of claim 6, wherein: The display device (6) further comprises a mounting structure (65) matched with the cavity structure at the mounting position of the display device (6) on the shell (1), and the first circuit board (62) and the second circuit board (63) are installed in parallel in the mounting structure (65), the top end of which is connected to the shell (1), and the bottom end and the peripheral side thereof are sealed and connected to the inner wall of the shell (1) through a sealing structure.

9. The ultrasonic integrated flow meter of claim 8, wherein: The display device (6) further comprises a turning adjusting structure (64) located between the mounting structure (65) and the shell (1), and the mounting structure (65) can rotate relative to the shell (1); The turning adjusting structure (64) comprises a plurality of circumferentially distributed adjusting grooves (641) and elastic limiting portions (642), and the mounting structure (65) drives the adjusting grooves (641) to rotate relative to the elastic limiting portions (642), or drives the elastic limiting portions (642) to rotate relative to the adjusting grooves (641).

10. The ultrasonic integrated flow meter of claim 9, wherein: The elastic limiting portion (642) comprises an elastic portion (6421) and a second matching portion (6422), and the second matching portion (6422) is connected to one end of the elastic portion (6421) facing the adjusting groove (641), and the second matching portion (6422) is elastically abutted and matched with a plurality of adjusting grooves (641) through the elastic portion (6421).

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