Open channel flow measuring device

Abstract

The utility model relates to the technical field of water conservancy measurement, in particular to an open channel flow measuring device, which comprises a fixing unit, a measuring unit and a control unit, wherein the fixing unit is used for fixing the open channel flow measuring device on an open channel; the lifting units are used for receiving the first control signal to drive the measuring probes to lift to measure the flow of the open channel and feeding back a flow measuring signal to the control unit; the overturning units are arranged on the fixing unit, correspond to the lifting units and are used for receiving the second control signal to drive the lifting units to overturn and feeding back an overturning angle signal to the control unit; and the control unit is arranged on the fixing unit and is used for receiving the flow measurement signal and the turnover angle signal and sending a first control signal and a second control signal. According to the open channel flow measuring device, open channel multi-point flow measurement can be achieved, the flow measurement precision is improved, the coverage range is widened, and the measuring probe can be operated and maintained conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy measurement, in particular to an open channel flow measurement device. Background Art

[0002] With the large-scale construction of water conservancy infrastructure projects, real-time monitoring of river flow has become crucial, especially during the summer flood season, when all-weather data detection of river flow is particularly important. Water level flow meters are faced with long-term and high-frequency detection tasks, and their operation and maintenance tasks are heavy.

[0003] At present, the operation and maintenance of water level flow meters mainly rely on manual work, and robot-assisted or automated maintenance has not yet been adopted.

[0004] Due to the irregular shape of the river channel, different boundary roughness and anisotropy of turbulence, traditional open channel flow measurement data often fluctuates greatly. These measurement data not only cannot provide effective guidance for production operations, but also cause troubles for monitoring personnel. These problems are mainly caused by the use of traditional single-point sampling devices. Therefore, a solution assisted by a multi-point matrix device is urgently needed. Utility Model Content

[0005] The utility model aims to provide an open channel flow measurement device, which can realize multi-point flow measurement in an open channel, improve the accuracy and coverage of flow measurement, and facilitate the operation and maintenance of the measurement probe.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An open channel flow measurement device, comprising a fixing unit for fixing the open channel flow measurement device on an open channel, and further comprising

[0008] A plurality of lifting units arranged on the fixed unit, a flip unit arranged on the fixed unit and corresponding to each of the lifting units, and a control unit arranged on the fixed unit; the lifting unit comprises a stepping motor arranged on the fixed unit, a support rod drivingly connected to the central axis of the stepping motor, a connecting rod drivingly connected to the support rod, an extension rod drivingly connected to the connecting rod, an orientator for horizontally limiting the extension rod, and a measuring probe arranged at the end of the extension rod; the flip unit comprises a servo steering engine arranged on the fixed unit and drivingly connected to the stepping motor, and a flip plate connecting the stepping motor and the orientator;

[0009] The stepper motor is connected to the control unit by signal, receives a first control signal sent by the control unit, drives the central axis to rotate, drives the support rod to rotate around the central axis, and drives the extension rod to rise and fall through the connecting rod;

[0010] The measuring probe is connected to the control unit by signal, and feeds back a flow measurement signal to the control unit;

[0011] The servo steering engine is connected to the control unit signal, receives the second control signal sent by the control unit, drives the output shaft to extend and retract, drives the stepper motor to flip around the fixed unit, drives the lifting unit to flip through the flip plate, and feeds back a flip angle signal to the control unit.

[0012] Furthermore, the fixing unit includes a chassis and a support plate arranged on the chassis; the control unit is arranged on the chassis; and each of the lifting unit and the flipping unit is arranged on the support plate.

[0013] Furthermore, the chassis includes a bottom plate, a support tube for supporting the bottom plate, and a positioning seat for locking the support tube.

[0014] Furthermore, the bottom plate is an aluminum alloy plate or is formed by paving a plurality of aluminum square tubes.

[0015] Furthermore, the chassis is detachably fixed to the ground on both sides of the open channel by nuts.

[0016] Furthermore, a first gear is provided at the first end of the support rod, and a second gear is provided on the central axis of the stepper motor, and the first gear is meshed with the second gear; the second end of the support rod is rotatably connected to the first end of the connecting rod, and the second end of the connecting rod is rotatably connected to the first end of the extension rod, and the measuring probe is detachably connected to the second end of the extension rod.

[0017] Furthermore, the output shaft of the servo steering gear is connected to the outer side of the stepper motor through a coupling.

[0018] Furthermore, the servo steering engine is mounted on the support plate by fastening screws.

[0019] Furthermore, the flip plate is provided with a hole matching the central axis of the stepper motor, and the central axis of the stepper motor passes through the hole and is transmission-connected to the support rod; the aperture of the hole is larger than the outer diameter of the central axis of the stepper motor.

[0020] Furthermore, the flip plate is an aluminum alloy plate.

[0021] Furthermore, the orienter is provided with a plurality of orienting holes, and the extension rod passes through each of the orienting holes; the central axis of each of the orienting holes coincides with the central axis of the extension rod, and the aperture of each of the orienting holes is larger than the outer diameter of the extension rod.

[0022] Further, the control unit includes a communication module for receiving the flow measurement signal, the flipping angle signal and sending the first control signal and the second control signal.

[0023] Further, the control unit includes a positioning module for positioning the open channel to be measured currently.

[0024] Further, the control unit is fixed to the chassis through a 3D printed protection plate.

[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0026] The open channel flow measurement device provided by the present utility model realizes multi-point flow measurement of the open channel through multiple lifting units, and improves the convenience of operation and maintenance of the measurement probe through the flipping unit.

[0027] During the flow measurement process, through the multi-point matrix distribution mode of multiple lifting units, the influence of the irregular shape of the river channel, the difference in boundary roughness and the anisotropy of turbulence on the flow measurement can be effectively reduced. The measurement probes of multiple lifting units can form a multi-point matrix probe distribution to obtain real-time flow data. By lifting the measurement probe through the lifting unit, the accuracy and coverage range of the flow measurement can be improved, the system response speed can be increased, and at the same time, the whole system does not need to be shut down for maintenance.

[0028] The flipping unit corresponding to each lifting unit can realize the omnidirectional adjustment of the maintenance position of the measurement probe by integrally flipping the lifting unit through a servo steering gear, so that personnel of different heights can conveniently carry out maintenance operations. After the lifting unit is integrally flipped by using the flipping unit, if the vertical direction of the measurement probe needs to be adjusted further, only by rotating the central axis of the stepping motor in the lifting unit to drive the support rod to rotate, and at the same time, through the fastening effect of the support rod and the connecting rod, driving the extension rod to lift, the position of the measurement probe in the vertical direction can be changed. Description of the Drawings

[0029] Figure 1 is a schematic diagram of the open channel flow measurement device provided by the embodiment of the present utility model;

[0030] Figure 2 is a side view of the open channel flow measurement device provided by the embodiment of the present utility model;

[0031] Figure 3 is a schematic diagram of the flipping unit driving the lifting unit to flip in the open channel flow measurement device provided by the embodiment of the present utility model;

[0032] In the figure: 1. chassis; 2. control unit; 3. support plate; 4. stepper motor; 5. servo actuator; 6. flip plate; 7. support rod; 8. connecting rod; 9. extension rod; 10. orientator; 11. measuring probe. DETAILED DESCRIPTION

[0033] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0035] Embodiment 1:

[0036] This embodiment provides an open channel flow measurement device, including:

[0037] Fixing unit: used to fix the open channel flow measurement device on the open channel;

[0038] A plurality of lifting units arranged on the fixed unit: used to receive the first control signal to drive the measuring probe 11 to rise and fall to measure the open channel flow and feed back the flow measurement signal to the control unit 2;

[0039] The flipping unit provided on the fixed unit and corresponding to each lifting unit is used to receive the second control signal to drive each lifting unit to flip and feed back a flipping angle signal to the control unit 2;

[0040] The control unit 2 provided on the fixed unit is used for receiving the flow measurement signal, the flip angle signal and sending the first control signal and the second control signal.

[0041] The open channel flow measurement device provided in this embodiment realizes open channel multi-point flow measurement through multiple lifting units, improves the accuracy and coverage of flow measurement, and improves the convenience of operation and maintenance of the measuring probe through the flip unit.

[0042] like Figure 1 , Figure 2 As shown, the lifting unit includes a stepper motor 4 arranged on the fixed unit, a support rod 7 connected to the central axis of the stepper motor 4, a connecting rod 8 connected to the support rod 7, an extension rod 9 connected to the connecting rod 8, an orienter 10 for horizontally limiting the extension rod 9, and a measuring probe 11 arranged at the end of the extension rod 9.

[0043] In this embodiment, the stepper motor 4 is connected to the control unit 2 by signal, receives the first control signal sent by the control unit 2, drives the central axis to rotate, drives the support rod 7 to rotate around the central axis, and drives the extension rod 9 to rise and fall through the connecting rod 8. The measuring probe 11 is connected to the control unit 2 by signal, and feeds back the flow measurement signal to the control unit 2.

[0044] like Figure 1 In the three lifting units shown, the three stepper motors 4 drive the central axis to rotate at different angles according to the first control signals respectively received, drive the support rod 7 to rotate at different angles around the central axis, and drive the extension rod 9 to rise and fall to different vertical positions through the connecting rod 8, so that the measuring probe 11 located at the end of the extension rod 9 can measure the flow at different depths of the open channel, and then feed back different flow measurement signals to the control unit 2.

[0045] The open channel flow measurement device provided in this embodiment can effectively reduce the influence of irregular shape of the river channel, boundary roughness difference and turbulence anisotropy on flow measurement through the multi-point matrix distribution of multiple lifting units during flow measurement. The measuring probes 11 of multiple lifting units can form a multi-point matrix probe distribution to obtain real-time flow data. By lifting the measuring probes 11 by the lifting units, the accuracy and coverage of flow measurement can be improved, and the system response speed can be improved, and there is no need to shut down the entire system for maintenance.

[0046] like Figure 1 , Figure 2 As shown, the flip unit includes a servo actuator 5 which is arranged on the fixed unit and is transmission-connected to the stepper motor 4 , and a flip plate 6 which connects the stepper motor 4 and the orienter 10 .

[0047] In this embodiment, the servo actuator 5 is signal-connected to the control unit 2, receives the second control signal sent by the control unit 2, drives the output shaft to extend and retract, drives the stepper motor 4 to flip around the fixed unit, drives the lifting unit to flip through the flip plate 6, and feeds back the flip angle signal to the control unit 2.

[0048] like Figure 3 As shown, when the operator needs to inspect the measuring probe 11, the control unit 2 only needs to send a second control signal to drive the output shaft of the servo actuator 5 to extend and retract, driving the stepper motor 4 to flip around the fixed unit. Since the stepper motor 4 is rigidly connected to the flip plate 6, the stepper motor 4 will drive the flip plate 6 to flip together. Since the flip plate 6 is connected to the orienter 10, the flip plate 6 can drive the entire lifting unit to flip as a whole, flipping the measuring probe 11 from vertical downward to vertical upward. The flip unit flips the measuring probe 11 to a vertical upward state as shown in FIG. Figure 3 shown.

[0049] The open-channel flow measurement device provided by this embodiment can achieve all-round adjustment of the maintenance position of the measurement probe 11 by using the servo actuator 5 to integrally flip the lifting unit, enabling personnel of different heights to conveniently perform maintenance operations. After the lifting unit is integrally flipped by the flipping unit, if further adjustment of the measurement probe 11 in the vertical direction is required, it is only necessary to drive the support rod 7 to rotate by rotating the central axis of the stepper motor 4 in the lifting unit, and at the same time, drive the extension rod 9 to lift through the fastening action between the support rod 7 and the connecting rod 8, so as to change the position of the measurement probe 11 in the vertical direction.

[0050] Embodiment 2:

[0051] The open-channel flow measurement device provided by this embodiment, on the basis of Embodiment 1, as Figure 1 、 Figure 2 shown, the fixing unit includes a chassis 1 and a support plate 3 provided on the chassis 1.

[0052] In this embodiment, the control unit 2 is provided on the chassis 1; each lifting unit and flipping unit are provided on the support plate 3.

[0053] In this embodiment, the chassis 1 includes a bottom plate, a support pipe for supporting the bottom plate, and a positioning seat for locking the support pipe; wherein, the bottom plate is an aluminum alloy plate or is formed by laying a plurality of aluminum square pipes, and the thickness of the chassis 1 is 90 mm.

[0054] In this embodiment, the chassis 1 is detachably fixed to the ground on both banks of the open channel through nuts.

[0055] The open-channel flow measurement device provided by this embodiment is convenient for disassembly and assembly, and the operator can install the chassis on both banks of the open channel to be measured according to needs.

[0056] Embodiment 3:

[0057] The open-channel flow measurement device provided by this embodiment, on the basis of Embodiment 1, a first gear is provided at the first end of the support rod 7, a second gear is provided on the central axis of the stepper motor 4, and the first gear meshes with the second gear; the second end of the support rod 7 is rotatably connected to the first end of the connecting rod 8, the second end of the connecting rod 8 is rotatably connected to the first end of the extension rod 9, and the measurement probe 11 is detachably connected to the second end of the extension rod 9.

[0058] For the open-channel flow measurement device provided by this embodiment, the measurement probe 11 and the extension rod 9 are detachably connected, which is convenient for the operator to disassemble, repair or replace the measurement probe 11.

[0059] Embodiment 4:

[0060] The open-channel flow measurement device provided by this embodiment, on the basis of Embodiment 1, as Figure 1 、 Figure 2As shown, the output shaft of the servo steering gear 5 is connected to the outer side of the stepper motor 4 through a coupling.

[0061] The open channel flow measurement device provided in this embodiment drives the stepper motor 4 to flip around the fixed unit through the extension and retraction of the output shaft of the servo steering gear 5. Since the stepper motor 4 is rigidly connected to the flip plate 6, the stepper motor 4 will drive the flip plate 6 to flip together. Since the flip plate 6 is connected to the orienter 10, the flip plate 6 can drive the entire lifting unit to flip as a whole.

[0062] Embodiment 5:

[0063] This embodiment provides an open channel flow measurement device. Based on the first embodiment, the servo steering engine 5 is installed on the support plate 3 by fastening screws.

[0064] In this embodiment, the operator can disassemble or repair the servo actuator 5 as needed.

[0065] Embodiment 6:

[0066] This embodiment provides an open channel flow measurement device. On the basis of Embodiment 1, a hole matching the central axis of the stepper motor 4 is formed on the flip plate 6, and the central axis of the stepper motor 4 passes through the hole and is transmission-connected to the support rod 7; the aperture of the hole is larger than the outer diameter of the central axis of the stepper motor.

[0067] In this embodiment, the flip plate 6 is an aluminum alloy plate.

[0068] In the open channel flow measurement device provided in this embodiment, the central axis of the stepper motor 4 passes through the hole and is transmission-connected to the support rod 7. Therefore, when the flip unit flips the lifting unit, the transmission relationship of the components in the lifting mechanism is not affected. The stepper motor 4 can still drive the support rod 7 to rotate, thereby realizing the adjustment of the measuring probe 11.

[0069] Embodiment 7:

[0070] This embodiment provides an open channel flow measurement device. Based on the embodiment 1, Figure 1 , Figure 2 As shown, the orienter 10 is provided with a plurality of orienting holes, and the extension rod 9 passes through each of the orienting holes; the central axis of each orienting hole coincides with the central axis of the extension rod 9 , and the aperture of each orienting hole is larger than the outer diameter of the extension rod 9 .

[0071] In the open channel flow measurement device provided in this embodiment, the orienter 10 can limit the extension rod 9 in the horizontal direction, ensuring that when the stepper motor 4 drives the support rod 7 to rotate, the extension rod 9 is always driven by the connecting rod 8 to move only in the vertical direction.

[0072] Embodiment 8:

[0073] This embodiment provides an open-channel flow measurement device. On the basis of Embodiment 1, the control unit 2 includes a communication module for receiving flow measurement signals, flipping angle signals, and sending first control signals and second control signals.

[0074] In this embodiment, the communication module can be a 4G module or a 5G module.

[0075] In this embodiment, the control unit 2 is equipped with an Arduino chip for analyzing and processing flow measurement signals and flipping angle signals and outputting first control signals and second control signals. The communication module is signal-connected to the Arduino chip.

[0076] Each lifting unit and flipping unit feedback the flow measurement signals and flipping angle signals they collect to the control unit 2. After being received by the communication module of the control unit 2, they are transmitted to the Arduino chip. After being analyzed and processed by the Arduino chip, the Arduino chip outputs first control signals and second control signals to the communication module, and then the communication module sends them to each lifting unit and flipping unit.

[0077] Specifically: After starting the open-channel flow measurement device provided in this embodiment, the control unit 2 initializes the data and judges whether the power connection is normal. If it is not normal, a prompt will be given. If it is normal, a self-check will be performed to check whether there is a problem with the data transmission function. If there is, a prompt will be given, and the manual operation is remotely controlled by the operator to control the lifting unit and the flipping unit. The flow measurement data received by the measurement probe 11 is communicated and exchanged through the Arduino chip. The Arduino chip analyzes and processes the received data, and realizes data transmission and real-time monitoring through the communication module.

[0078] In addition to the Arduino chip provided in this embodiment, the control unit 2 can also be equipped with any other existing chips or modules with data analysis and processing capabilities, which does not affect the function of the lifting unit driving the measurement probe to lift and measure the open-channel flow and the flipping unit driving the lifting unit to flip in this application.

[0079] Embodiment 9:

[0080] This embodiment provides an open-channel flow measurement device. On the basis of Embodiment 8, the control unit 2 further includes a positioning module for positioning the open channel to be measured currently.

[0081] In this embodiment, the positioning module adopts a Beidou positioning system or a GPS positioning system.

[0082] For the open-channel flow measurement device provided in this embodiment, the positioning module can position the current hydrological station or the open channel to be measured, facilitating the operator to quickly obtain the precise position of the current hydrological station or the open channel to be measured.

[0083] Embodiment 10:

[0084] This embodiment provides an open-channel flow measurement device. On the basis of Embodiment 8, the control unit 2 is fixed to the chassis 1 by a 3D-printed protection plate.

[0085] In this embodiment, if the devices connected by communication need to be connected by wires, the wires should be wrapped and protected with black rubber wires.

[0086] For the open-channel flow measurement device provided in this embodiment, the 3D-printed protection plate can not only firmly fix the control unit 2 to the chassis 1, but also protect the control unit 2 from external interference or damage.

[0087] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. An open channel flow measurement device, comprising a fixing unit for fixing the open channel flow measurement device on an open channel, characterized in that: It also comprises a plurality of lifting units arranged on the fixed unit, a flip unit arranged on the fixed unit and corresponding to each of the lifting units, and a control unit (2) arranged on the fixed unit; the lifting unit comprises a stepping motor (4) arranged on the fixed unit, a support rod (7) drivingly connected to the central axis of the stepping motor (4), a connecting rod (8) drivingly connected to the support rod (7), an extension rod (9) drivingly connected to the connecting rod (8), an orienter (10) for horizontally limiting the extension rod (9), and a measuring probe (11) arranged at the end of the extension rod (9); the flip unit comprises a servo steering engine (5) arranged on the fixed unit and drivingly connected to the stepping motor (4), and a flip plate (6) connecting the stepping motor (4) and the orienter (10); The stepper motor (4) is connected to the control unit (2) by signals, receives a first control signal sent by the control unit (2), drives the central axis to rotate, drives the support rod (7) to rotate around the central axis, and drives the extension rod (9) to rise and fall through the connecting rod (8); The measuring probe (11) is connected to the control unit (2) by signal, and feeds back a flow measurement signal to the control unit (2); The servo steering engine (5) is connected to the control unit (2) by signal, receives a second control signal sent by the control unit (2), drives the output shaft to extend and retract, drives the stepper motor (4) to flip around the fixed unit, drives the lifting unit to flip via the flip plate (6), and feeds back a flip angle signal to the control unit (2).

2. The open channel flow measurement device according to claim 1, characterized in that: The fixing unit comprises a chassis (1) and a support plate (3) arranged on the chassis (1); the control unit (2) is arranged on the chassis (1); and each of the lifting units and the turning unit is arranged on the support plate (3).

3. The open channel flow measurement device according to claim 2, characterized in that: The chassis (1) comprises a bottom plate, a support tube for supporting the bottom plate, and a positioning seat for locking the support tube.

4. The open channel flow measurement device according to claim 1, characterized in that: A first gear is provided at the first end of the support rod (7), a second gear is provided on the central axis of the stepping motor (4), and the first gear is meshed with the second gear; the second end of the support rod (7) is rotatably connected to the first end of the connecting rod (8), the second end of the connecting rod (8) is rotatably connected to the first end of the extension rod (9), and the measuring probe (11) is detachably connected to the second end of the extension rod (9).

5. The open channel flow measurement device according to claim 1, characterized in that: The output shaft of the servo steering gear (5) is connected to the outside of the stepping motor (4) via a coupling.

6. The open channel flow measurement device according to claim 1, characterized in that: The flip plate (6) is provided with a hole matching the central axis of the stepper motor (4); the central axis of the stepper motor (4) passes through the hole and is transmission-connected to the support rod (7); the hole has a diameter larger than an outer diameter of the central axis of the stepper motor (4).

7. The open channel flow measurement device according to claim 1, characterized in that: The orienter (10) is provided with a plurality of orienting holes, and the extension rod (9) passes through each of the orienting holes; the central axis of each of the orienting holes coincides with the central axis of the extension rod (9), and the aperture of each of the orienting holes is greater than the outer diameter of the extension rod (9).

8. The open channel flow measurement device according to claim 1, characterized in that: The control unit (2) comprises a communication module for receiving the flow measurement signal and the flip angle signal and sending the first control signal and the second control signal.

9. The open channel flow measurement device according to claim 1, characterized in that: The control unit (2) comprises a positioning module for positioning the open channel to be measured.

10. The open channel flow measurement device according to claim 2, characterized in that: The control unit (2) is fixed on the chassis (1) via a 3D printed protection plate.

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