Rail-mounted section automatic flow measuring system

Abstract

The utility model discloses a rail type section automatic flow measuring system which comprises a rail used for being erected on two banks of a channel and a flow measuring vehicle capable of automatically running on the rail, a multi-stage telescopic flow measuring device is installed on the flow measuring vehicle, and the multi-stage telescopic flow measuring device comprises a flow velocity detector, a multi-stage telescopic rod mechanism and a telescopic rod driving device. The multi-stage telescopic rod mechanism is installed on the flow measuring vehicle in the vertical direction and is in transmission connection with the telescopic rod driving device, the flow velocity detector is installed on the multi-stage telescopic rod mechanism, and the telescopic rod driving device is used for driving the multi-stage telescopic rod mechanism to do telescopic motion and driving the flow velocity detector to move in the vertical direction. The device can accurately control the lowering depth and position of the flow velocity detector, is not liable to be interfered by the outside, enables the flow velocity detector to accurately reach a specified measurement point, improves the position stability of the flow velocity detector, guarantees the measurement accuracy, and is simple in structure and high in measurement efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to cross section flow measurement system technical field, especially track type cross section automatic flow measurement system. BACKGROUND

[0002] Flow data has very important role, involves flood control safety, hydrology and water conservancy calculation, water resources scheduling, water resources evaluation and so on each aspect, and the accurate measurement of channel flow has the vital significance to hydrology work. Traditional channel flow measurement needs to consume a lot of manpower and material resources by manual operation, in order to reduce the flow test workload, the track cross section flow measurement vehicle that can carry out automatic flow measurement has been designed on the market at present.

[0003] Such as the announcement number for CN220524966U, the announcement day is February 23, 2024 China practical new type patent discloses a kind of track cross section flow measurement vehicle, its bottom is equipped with connecting rope by being equipped with detection body in the bottom of connecting rope, in the detection process, by winding and unwinding connecting rope, to make detection body reach detection position and detect flow rate.This way of hoisting detection body with connecting rope will at least have the following defects in practical application: connecting rope is easy to sway in hoisting process, and is susceptible to external interference, such as wind, water flow and other factors cause connecting rope to swing, it is difficult to accurately control the depth and position of detection body lowering, cannot accurately reach specified measurement point, lead to the position of detection body is unstable, affect the accuracy of measurement, simultaneously, connecting rope needs to be wound and unwound for each measurement, reduce the efficiency of measurement.Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. CONTENT OF UTILITY MODEL

[0004] The utility model solves the problem to provide a kind of track type cross section automatic flow measurement system, to overcome the defect that prior art is difficult to accurately control flow rate detector lowering depth and position.

[0005] The utility model discloses a kind of track type cross section automatic flow measurement system, including: for erecting in the track of channel both sides and the flow measurement vehicle that can automatically travel on the track, the flow measurement vehicle is installed with multistage telescopic flow measuring device, the multistage telescopic flow measuring device includes flow rate detector, multistage telescopic rod mechanism and telescopic rod driving device, the multistage telescopic rod mechanism is installed on the flow measurement vehicle along vertical direction and is transmissionally connected in the telescopic rod driving device, the flow rate detector is installed on the multistage telescopic rod mechanism, the telescopic rod driving device is used to drive the multistage telescopic rod mechanism to do telescopic motion, and drive the flow rate detector moves along vertical direction.

[0006] As a further improvement of the utility model, the multi-stage telescopic rod mechanism comprises a first measuring rod and a second measuring rod, the first measuring rod is slidably installed on the flow measuring vehicle in the vertical direction, the second measuring rod is slidably installed on the first measuring rod in the vertical direction, and the flow velocity detector is installed at the bottom of the first measuring rod.

[0007] As a further improvement of the utility model, the telescopic rod driving device comprises a first driving device, and the first driving device is used for driving the first measuring rod to drive the second measuring rod and the flow velocity detector to move in the vertical direction.

[0008] As a further improvement of the utility model, the first driving device comprises a first speed reducer and a first transmission mechanism, the first speed reducer is fixedly installed on the flow measuring vehicle, the first transmission mechanism comprises a rack and a gear, the rack is fixedly installed on the first measuring rod in the vertical direction, and the gear is fixedly installed on the output shaft of the first speed reducer and is engaged with the rack.

[0009] As a further improvement of the utility model, the telescopic rod driving device further comprises a second driving device, and the second driving device is used for driving the second measuring rod to drive the flow velocity detector to move in the vertical direction.

[0010] As a further improvement of the utility model, the second driving device comprises a second speed reducer and a second transmission mechanism, the second speed reducer is fixedly installed at the top of the first measuring rod, the second transmission mechanism comprises a lead screw and a lead screw nut, the lead screw is coaxially arranged in the interior of the first measuring rod and is fixedly connected to the output shaft of the second speed reducer, and the lead screw nut is sleeved on the lead screw; the second measuring rod is slidably installed in the interior of the first measuring rod and is fixedly connected to the lead screw nut.

[0011] As a further improvement of the utility model, the second measuring rod is in the shape of a circular tube, a limiting plane is arranged on the outer side surface of the second measuring rod in the axial direction, a limiting ring is installed at the bottom of the first measuring rod, the limiting ring is sleeved on the second measuring rod, and the inner hole of the limiting ring is matched with the outer peripheral dimension of the second measuring rod.

[0012] As a further improvement of the utility model, the bottom of the second measuring rod is fixedly provided with a first support, an inclined block is rotatably arranged on the first support, and the flow rate detector is fixedly connected to the inclined block through a third measuring rod.

[0013] As a further improvement of the utility model, the flow rate detector is a rotor type flow rate detector.

[0014] As a further improvement of the utility model, the bottom of the flow rate measuring vehicle is provided with a radar water level detector.

[0015] The utility model has the advantages of:

[0016] 1. The utility model provides a track type section automatic flow measuring system, drives multi-stage telescopic rod mechanism to do telescopic motion through telescopic rod drive arrangement, can accurately control the depth and position of flow rate detector, is not easy to be disturbed by outside, makes the flow rate detector accurately arrive at the specified measuring point, improves the position stability of flow rate detector, guarantees the accuracy of measurement, and simple structure is high in measurement efficiency.

[0017] 2. The utility model discloses a inclined block is rotatably arranged on the bottom of the second measuring rod, the flow rate detector is fixedly connected to the inclined block through a third measuring rod, and a bearing is arranged on the bottom of the flow rate measuring vehicle, when the flow rate detector is lowered, the third measuring rod is rotated from the horizontal state to the vertical state under the action of gravity, when the flow rate detector is retracted, the bearing is abutted on the inclined block and is rotated, thereby driving the third measuring rod to rotate from the vertical state to the horizontal state, realizing the automatic storage of the flow rate detector, and protecting the flow rate detector when not working.

[0018] 3. The flow rate detector in the utility model is a rotor type flow rate detector, can accurately measure the flow rate of measuring point, is simultaneously provided with a radar water level detector and a camera, can non-contactly measure water depth, and can monitor the running condition of the flow measuring system at any time, can automatically complete the vertical line distribution according to water depth, automatically select the measuring point, control the flow rate measuring vehicle to automatically complete measurement at regular time through the automatic control system, and clearly display section condition, vertical line distribution, measuring point selection, flow rate of each point, section flow rate and other information through the touch screen. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1The utility model discloses a track type automatic flow measuring system for channel structure schematic view;

[0020] Figure 2 It is the three-dimensional view of the flow measuring vehicle and the multistage telescopic flow measuring device in the retracted state in the utility model;

[0021] Figure 3 It is the three-dimensional view of the flow measuring vehicle and the multistage telescopic flow measuring device in the retracted state in the utility model after removing the top shell;

[0022] Figure 4 It is the sectional view of the flow measuring vehicle and the multistage telescopic flow measuring device in the retracted state in the utility model after removing the top shell;

[0023] Figure 5 It is the three-dimensional view of the flow measuring vehicle and the multistage telescopic flow measuring device in the extended state in the utility model after removing the top shell;

[0024] Figure 6 It is the three-dimensional view of the flow measuring vehicle and the multistage telescopic flow measuring device in the retracted state in the utility model; Figure 2 The utility model discloses a zoomed view of A part.

[0025] The following description is made in conjunction with the accompanying drawings:

[0026] 1, track; 2, flow measuring vehicle; 3, flow velocity detector; 4, first measuring rod; 5, second measuring rod; 501, limit plane; 6, first speed reducer motor; 7, rack; 8, gear; 9, second speed reducer motor; 10, screw rod; 11, screw rod nut; 12, limit ring; 13, first support; 14, inclined block; 1401, upper inclined surface; 15, third measuring rod; 16, second support; 17, bearing; 18, radar water level detector; 19, roller; 20, gantry support; 21, camera. Specific implementation

[0027] The following describes the preferred embodiment of the utility model in conjunction with the accompanying drawings.

[0028] Referring to Figures 1 to 6 The utility model provides a track type automatic flow measuring system, include: flow measuring vehicle 2 and gantry support 20, the gantry support 20 is used to erect in the both sides of channel, the crossbeam of gantry support 20 is provided with track 1, and flow measuring vehicle 2 can automatically travel on track 1.

[0029] Among them, the power device is installed in flow measuring vehicle 2, is used to drive flow measuring vehicle 2 and automatically travels on track 1, and this power device does not as the place to be improved of this application, therefore does not again expand the elaboration to this.

[0030] Further, the multi-stage telescopic flow measuring device is installed on the flow measuring vehicle 2, and comprises a flow velocity detector 3, a multi-stage telescopic rod mechanism and a telescopic rod driving device.

[0031] The telescopic rod driving device drives the multi-stage telescopic rod mechanism to perform telescopic movement, can accurately control the depth and position of the flow velocity detector 3, is not easily disturbed by the outside world, makes the flow velocity detector 3 accurately reach the designated measuring point, improves the position stability of the flow velocity detector 3, ensures the accuracy of measurement, and has high measurement efficiency.

[0032] Preferably, the flow velocity detector 3 is a rotor flowmeter, which can accurately measure the flow velocity of the measuring point.

[0033] In the embodiment, the flow measuring vehicle 2 is in an inverted U shape, two rows of rollers are installed on the opposite inner side walls of the flow measuring vehicle 2, rails 1 are arranged at the four corners of the cross beam of the gantry support 20, and the four rows of rollers on the flow measuring vehicle 2 correspondingly travel on the four rails 1.

[0034] Referring to Figures 3 to 5 The multi-stage telescopic rod mechanism comprises a first measuring rod 4 and a second measuring rod 5, the first measuring rod 4 is slidably installed on one side of the flow measuring vehicle 2 in the vertical direction, the second measuring rod 5 is slidably installed on the first measuring rod 4 in the vertical direction, and the flow velocity detector 3 is installed at the bottom of the first measuring rod 4. The telescopic rod driving device comprises a first driving device, and the first driving device is used to drive the first measuring rod 4 to move the second measuring rod 5 and the flow velocity detector 3 in the vertical direction.

[0035] Specifically, the first driving device comprises a first speed reducer 6 and a first transmission mechanism, the first speed reducer 6 is fixedly installed on the top of the flow measuring vehicle 2, the first transmission mechanism comprises a rack 7 and a gear 8, the rack 7 is fixedly installed on the outer side surface of the first measuring rod 4 in the vertical direction, and the gear 8 is fixedly installed on the output shaft of the first speed reducer 6 and is in meshing connection with the rack 7. When the first speed reducer 6 drives the gear 8 to rotate, the first measuring rod 4 is driven to move in the vertical direction through the rack 7.

[0036] In addition, the telescopic rod driving device further comprises a second driving device, and the second driving device is used to drive the second measuring rod 5 to move the flow velocity detector 3 in the vertical direction.

[0037] Specifically, the second driving device comprises a second speed reducer motor 9 and a second transmission mechanism, the second speed reducer motor 9 is fixedly installed at the top of the first measuring rod 4. The second transmission mechanism comprises a lead screw 10 and a lead screw nut 11, the first measuring rod 4 is a circular tube, the lead screw 10 is coaxially arranged in the interior of the first measuring rod 4 and is fixedly connected to the output shaft of the second speed reducer motor 9, and the lead screw nut 11 is sleeved on the lead screw 10. The second measuring rod 5 is also a circular tube, is slidingly installed in the interior of the first measuring rod 4 and is between the lead screw 10 and the first measuring rod 4, and the second measuring rod 5 is also fixedly connected to the lead screw nut 11. When the second speed reducer motor 9 drives the lead screw 10 to rotate, the rotation is converted into linear motion through the lead screw nut 11 and drives the second measuring rod 5 to slide in the first measuring rod 4, thereby driving the flow rate detector 3 to move in the vertical direction.

[0038] The multi-stage telescopic flow measuring device has the advantages of realizing multi-stage telescopic function, improving measuring efficiency, simple structure and small space occupation.

[0039] The first speed reducer motor 6 and the second speed reducer motor 9 are both composed of an absolute value servo motor and a speed reducer, so as to accurately control the lowering depth and position of the flow rate detector 3.

[0040] Figure 5 As shown in the structure schematic view of the multi-stage telescopic flow measuring device in the extended state, two symmetrical limiting planes 501 are arranged on the outer side surface of the second measuring rod 5 in the axial direction; a limiting ring 12 is installed at the bottom of the first measuring rod 4, the limiting ring 12 is sleeved on the second measuring rod 5, and the inner hole of the limiting ring 12 is matched with the outer peripheral size of the second measuring rod 5, that is, two vertical faces are arranged on the inner hole of the limiting ring 12 and abut against the two limiting planes 501 respectively, so that the limiting ring 12 can limit the circumferential movement of the second measuring rod 5, and the second measuring rod 5 can only slide up and down in the first measuring rod 4 in the vertical direction.

[0041] Referring to Figure 2 and Figure 6 , the bottom of the second measuring rod 5 is fixedly installed with a first support 13, the first support 13 is rotatably installed with an inclined block 14 through a pin shaft, the flow rate detector 3 is fixedly connected to the inclined block 14 through a third measuring rod 15, and the inclined block 14 is provided with an upper inclined surface 1401. The bottom of the flow measuring vehicle 2 is fixedly installed with a second support 16, the second support 16 is located on one side of the first support 13, and the lower end of the second support 16 is rotatably installed with a bearing 17.

[0042] As shown in Figure 6 , when the multi-stage telescopic flow measuring device is in the retracted state, the bearing 17 abuts against the upper inclined surface 1401 of the inclined block 14, so that the third measuring rod 15 is distributed in the horizontal direction.

[0043] As shown in Figure 5As shown, when the multi-stage telescopic flow measuring device is in the extended state, the first measuring rod 4 is driven by the first speed reducer motor 6 to move vertically downward, and the second measuring rod 5 is driven by the second speed reducer motor 9 to move vertically downward relative to the first measuring rod 4, at this time, the inclined block 14 is away from the bearing 17, and the inclined block 14 rotates around the pin shaft under the action of the gravity of the flow rate detector 3 and the third measuring rod 15, so that the third measuring rod 15 is distributed in the vertical direction, so that the flow rate detector 3 measures the flow, and the projection of the bearing 17 in the vertical direction can fall on the upper inclined surface 1401.

[0044] It is worth mentioning that the first support 13 is provided with a limiting stop table for stopping the inclined block 14. Figure 5 As shown, when the third measuring rod 15 is distributed in the vertical direction, the upper inclined surface 1401 of the inclined block 14 is stopped by the limiting stop table, so that the third measuring rod 15 is kept in the vertical state, and the third measuring rod 15 is prevented from rotating counterclockwise under the impact of the water flow, and the accuracy of the detection position is ensured.

[0045] When the first measuring rod 4 and the second measuring rod 5 are retracted, the inclined block 14 is moved upward until the upper inclined surface 1401 of the inclined block 14 contacts the bearing 17, and in the following upward movement process, the inclined block 14 is rotated clockwise by the bearing 17, so that the third measuring rod 15 is rotated from the vertical state to the horizontal state, and the flow rate detector 3 is automatically stored, and the flow rate detector 3 can be protected when not working.

[0046] In addition, the gantry support 20 is provided with a camera 21 on one side, specifically a 7-inch high-definition ball machine, which can monitor the running condition of the flow measuring system at any time. The radar water level detector 18 is installed on the other side of the bottom of the flow measuring vehicle 2, which is used for non-contact measurement of water depth.

[0047] The track type automatic cross section flow measuring system further comprises a touch screen and an automatic control system, and the automatic control system can automatically complete the vertical line distribution, automatically select the measuring point, control the flow measuring vehicle 2 to automatically complete the measurement at regular time, and clearly display the cross section condition, the vertical line distribution, the measuring point selection, the flow rate of each point, the cross section flow rate and other information through the touch screen.

[0048] The track type automatic cross section flow measuring system can be powered by solar energy or alternating current, the measurement principle adopts the national relevant standard “GB21303-2017”, the measurement application is wide, the acceptance degree is high, the recognition degree is high, and the automatic system can be matched to automatically measure at regular time for 24 hours.

[0049] In the above description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the above description is merely a preferred embodiment of the present application, and the present application can be carried out in many different ways than described herein, and the present application is not limited to the above disclosed specific implementation. Meanwhile, any person skilled in the art can utilize the above disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present application, or modify them into equivalent embodiments with equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solutions of the present application, still belongs to the protection scope of the technical solutions of the present application.

Claims

1. An automatic cross-section flow measurement system of track type, comprising: The utility model provides a track (1) for erecting on both sides of a channel and a flow measuring vehicle (2) capable of automatically running on the track (1), characterized in that the flow measuring vehicle (2) is provided with a multi-stage telescopic flow measuring device, the multi-stage telescopic flow measuring device comprises a flow velocity detector (3), a multi-stage telescopic rod mechanism and a telescopic rod driving device, the multi-stage telescopic rod mechanism is installed on the flow measuring vehicle (2) in the vertical direction and is drivingly connected to the telescopic rod driving device, the flow velocity detector (3) is installed on the multi-stage telescopic rod mechanism, and the telescopic rod driving device is used to drive the multi-stage telescopic rod mechanism to perform telescopic movement and drive the flow velocity detector (3) to move in the vertical direction.

2. The track-mounted cross-section automatic flow measurement system according to claim 1, characterized in that: The multi-stage telescopic rod mechanism comprises a first measuring rod (4) and a second measuring rod (5), the first measuring rod (4) is slidingly installed on the flow measuring vehicle (2) in the vertical direction, the second measuring rod (5) is slidingly installed on the first measuring rod (4) in the vertical direction, and the flow velocity detector (3) is installed at the bottom of the first measuring rod (4).

3. The track-mounted cross-section automatic flow measuring system according to claim 2, characterized in that: The telescopic rod driving device comprises a first driving device, the first driving device is used to drive the first measuring rod (4) to drive the second measuring rod (5) and the flow velocity detector (3) to move in the vertical direction.

4. The track-mounted cross-section automatic flow measuring system according to claim 3, characterized in that: The first driving device comprises a first speed reducer (6) and a first transmission mechanism, the first speed reducer (6) is fixedly installed on the flow measuring vehicle (2), the first transmission mechanism comprises a rack (7) and a gear (8), the rack (7) is fixedly installed on the first measuring rod (4) in the vertical direction, and the gear (8) is fixedly installed on the output shaft of the first speed reducer (6) and is in mesh with the rack (7).

5. The track-mounted cross-section automatic flow measuring system according to claim 3, characterized in that: The telescopic rod driving device further comprises a second driving device, the second driving device is used to drive the second measuring rod (5) to drive the flow velocity detector (3) to move in the vertical direction.

6. The track-mounted cross-section automatic flow measurement system according to claim 5, characterized in that: The second driving device comprises a second speed reducer (9) and a second transmission mechanism, the second speed reducer (9) is fixedly installed at the top of the first measuring rod (4), the second transmission mechanism comprises a lead screw (10) and a lead screw nut (11), the lead screw (10) is coaxially arranged in the interior of the first measuring rod (4) and is fixedly connected to the output shaft of the second speed reducer (9), the lead screw nut (11) is sleeved on the lead screw (10), and the second measuring rod (5) is slidingly installed in the interior of the first measuring rod (4) and is fixedly connected to the lead screw nut (11).

7. The track-mounted cross-section automatic flow measurement system according to claim 6, characterized in that: The second measuring rod (5) is in the shape of a circular tube, a limiting plane (501) is arranged on the outer side surface of the second measuring rod (5) in the axial direction, a limiting ring (12) is installed at the bottom of the first measuring rod (4), the limiting ring (12) is sleeved on the second measuring rod (5), and the inner hole of the limiting ring (12) matches the outer peripheral dimension of the second measuring rod (5).

8. The track-mounted cross-section automatic flow measurement system according to claim 2, characterized in that: The bottom of the second measuring rod (5) is fixedly provided with a first support (13), the first support (13) is rotatably provided with an inclined block (14), and the flow velocity detector (3) is fixedly connected to the inclined block (14) through a third measuring rod (15); the bottom of the flow measuring vehicle (2) is fixedly provided with a second support (16), the lower end of the second support (16) is rotatably provided with a bearing (17), the bearing (17) abuts on the upper inclined surface (1401) of the inclined block (14), so that the third measuring rod (15) is distributed along the horizontal direction, and when the second measuring rod (5) moves vertically downward relative to the first measuring rod (4), the inclined block (14) is away from the bearing (17) and rotates under the action of the gravity of the flow velocity detector (3) and the third measuring rod (15), so that the third measuring rod (15) is distributed along the vertical direction, at this time, the projection of the bearing (17) in the vertical direction can fall on the upper inclined surface (1401).

9. The track-mounted cross-section automatic flow measurement system according to claim 1, characterized in that: The flow velocity detector (3) is a rotor type flow velocity detector.

10. The track-mounted cross-section automatic flow measurement system according to claim 1, characterized in that: The bottom of the flow measuring vehicle (2) is provided with a radar water level detector (18).

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