A flowmeter verification device

Abstract

The utility model relates to technical field of testing equipment discloses a flow velocity appearance calibrating device, include: flow velocity appearance installation pole, flow velocity appearance installation pole is detachably fixed on mounting spare, first rotation drive component, first rotation drive component fixed mounting is in bottom layer support platform, first rotation drive component has first output, and first output is connected with mounting spare fixedly, second rotation drive component, it is used for driving first rotation drive component and flow velocity appearance installation pole horizontal rotation, second rotation drive component has second output, second output fixed mounting has first gear, first straight line drive mechanism, first straight line drive mechanism is fixed in upper layer support platform, the utility model discloses through setting second straight line drive mechanism, first straight line drive mechanism to realize the back and forth process of flow velocity appearance body in the calibrating car can be detected, and the device automation degree is high, reduces the labor intensity of person.

Description

Technical Field

[0001] This utility model relates to the field of calibration equipment technology, and more specifically, to a flow meter calibration device. Background Technology

[0002] Current meters are crucial instruments used in hydrological monitoring, water conservancy projects, and environmental monitoring to measure water flow velocity. To ensure the accuracy and reliability of their measurement data, they must be calibrated and verified regularly using a current meter calibration device. The calibration process is typically carried out in a dedicated water tank. By placing the current meter in a known, stable standard flow field, its readings are compared with standard values ​​to determine its measurement error.

[0003] The current meter in the prior art has the following problems:

[0004] 1) Low verification efficiency: When multiple flow meters with different installation angles need to be verified, or when a series of verifications are performed on the same flow meter in different orientations, operators need to frequently manually disassemble, readjust, and reassemble the flow meter. This process is not only time-consuming and labor-intensive, but manual adjustments also make it difficult to ensure accurate angles and positions.

[0005] 2) Low level of automation and integration: Traditional mounting rod structures are simple and lack multi-degree-of-freedom linkage driving capabilities. This limits the level of automation in the calibration process, making it impossible to position the flowmeter to the preset three-dimensional coordinates and orientation, resulting in a low level of automation. Utility Model Content

[0006] To address at least one of the aforementioned problems, this utility model first provides a flow meter calibration device, comprising: a flow meter mounting rod for fixing the flow meter body; the flow meter mounting rod is detachably fixed to a mounting component; a first rotation drive assembly for driving the flow meter mounting rod to pitch rotation, and the first rotation drive assembly is fixedly mounted on a bottom support platform; the first rotation drive assembly has a first output end, and the first output end is fixedly connected to the mounting component; a second rotation drive assembly for driving the first rotation drive assembly and the flow meter mounting rod to rotate horizontally, and the second rotation drive assembly is fixed to a middle support platform; The second rotary drive assembly has a second output end; a first gear is fixedly mounted on the second output end; a rotary shaft is rotatably connected within the middle support platform; a second gear is fixedly mounted on one end of the rotary shaft, and the second gear meshes with the first gear; the other end of the rotary shaft is fixed to the bottom support platform, so that the second rotary drive assembly drives the bottom support platform to rotate; a first linear drive mechanism is used to drive the second rotary drive assembly, the first rotary drive assembly, and the flow meter mounting rod to rise and fall; the first linear drive mechanism is fixed to the upper support platform, and the first linear drive mechanism has a third output end capable of axial reciprocating motion.

[0007] Optionally, the flow meter calibration device further includes a second linear drive mechanism for adjusting the lateral position of the flow meter mounting rod; the second linear drive mechanism includes a guide rail and a slide table slidably connected to the guide rail; the second linear drive mechanism further includes a drive motor and a lead screw that is driven by the drive motor; the lead screw is threadedly engaged with the slide table, and the slide table is fixedly connected to the upper support platform, so that the drive motor drives the upper support platform to perform reciprocating linear motion.

[0008] Optionally, a side plate is fixedly connected to one side of the middle support platform; the side plate is fixedly installed with the second rotary drive assembly; the side plate has a horizontal notch or slot for the first gear to pass through.

[0009] Optionally, a stop block is fixedly connected to the circumference of the rotating shaft; the stop block cooperates with the bottom surface of the bottom support platform to limit the axial displacement of the bottom support platform.

[0010] Optionally, a plurality of counterweights are fixedly installed on the top surface of the bottom support platform away from the first rotary drive assembly to maintain the balance of the bottom support platform.

[0011] Optionally, the upper end of the flow meter mounting rod is provided with a threaded section; the threaded section is threadedly connected to the mounting component to fix the flow meter mounting rod.

[0012] Optionally, the flow meter mounting rod is threaded with at least one nut; the bottom surface of the nut mates with the top surface of the mounting component.

[0013] Optionally, a connecting seat is fixed to the top of the middle support platform; the third output end is provided with a connecting mating part; the connecting mating part is connected to the connecting seat so that the first linear drive mechanism drives the middle support platform to rise and fall.

[0014] Optionally, the side of the connector is provided with at least one inverted T-shaped groove; the connecting part includes a pair of fixing plates fixed to the third output end; one fixing plate is fixed to the bottom wall of the inverted T-shaped groove; the other fixing plate is fixed to the opening of the inverted T-shaped groove to fix the third output end to the connector.

[0015] Optionally, a slider is fixedly installed on one side of the connecting seat; the slider is slidably connected to the outer surface of the first linear drive mechanism.

[0016] Compared to existing technologies, this invention, by setting a second linear drive mechanism, can adjust the lateral position of the flow meter mounting rod in the water tank, that is, adjust the lateral position of the flow meter body in the water tank to meet measurement requirements; by setting a first linear drive mechanism, the immersion depth of the flow meter body can be adjusted; by setting the reversing function of the second rotary drive component, the flow meter body can rotate 180° or -180°, thereby enabling the flow meter body to be tested during the reciprocating process of the calibration vehicle. This device has a high degree of automation and reduces the labor intensity of humans. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the current meter calibration device of this utility model;

[0018] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0019] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle;

[0020] Figure 4 for Figure 1 The front view;

[0021] Figure 5 for Figure 1 Side view;

[0022] Figure 6 This is a schematic diagram showing the installation of the first rotary drive assembly and the second rotary drive assembly in this utility model;

[0023] Figure 7This is a schematic diagram showing the installation of the second rotary drive assembly and the first linear drive mechanism in this utility model;

[0024] Figure 8 for Figure 7 A magnified view of a portion of point C.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1-Flow meter mounting rod; 2-First rotary drive assembly; 3-Second rotary drive assembly; 4-First linear drive mechanism; 5-Second linear drive mechanism; 101-Mounting component; 201-First output end; 202-Bottom support platform; 301-Second output end; 302-Middle support platform; 303-First gear; 304-Rotating shaft; 305-Second gear; 401-Third output end; 402-Upper support platform; 501-Guide rail; 502-Slide table; 503-Drive motor; 1011-Nut; 2021-Counterweight block; 3021-Side plate; 3022-Notch; 3023-Connecting seat; 3024-Inverted T-slot; 3025-Fixing plate; 3026-Slider; 3041-Stop block. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0030] This utility model provides a flow meter calibration device. Please refer to [link / reference]. Figures 1-8As shown, the device includes: a current meter mounting rod 1 for fixing the current meter body; the current meter mounting rod 1 is detachably fixed to the mounting component 101; a first rotation drive assembly 2 for driving the current meter mounting rod 1 to pitch and rotate, thereby adjusting the water entry angle of the current meter body to meet the data measurement requirements of different postures of the current meter body, and the first rotation drive assembly 2 is fixedly installed on the bottom support platform 202; the first rotation drive assembly 2 has a first output end 201, and the first output end 201 is fixedly connected to the mounting component 101, the first rotation drive assembly 2 drives the mounting component 101 to rotate, thereby adjusting the water entry angle of the current meter mounting rod 1 and the current meter body; a second rotation drive assembly 3 for driving the first rotation drive assembly 2 and the current meter mounting rod 1 to rotate horizontally, and the second rotation drive assembly 3 is fixed to the middle support platform 302; the second rotation drive assembly 3 has a second output end 301; a first gear 303 is fixedly installed on the second output end 301; wherein, a rotating shaft 30 is rotatably connected inside the middle support platform 302. 4; A second gear 305 is fixedly installed at one end of the rotating shaft 304, and the second gear 305 meshes with the first gear 303. The second rotating drive assembly 3 drives the first gear 303 to rotate, thereby driving the second gear 305 to rotate, which in turn drives the bottom support platform 202 and the flow meter body to rotate. According to the reciprocating direction of the calibration vehicle, the flow meter body can rotate 180° or -180° by reversing the second rotating drive assembly 3, so that the flow meter body can be detected during the reciprocating process of the calibration vehicle, thereby achieving the purpose of calibration; The other end of the rotating shaft 304 is fixed to the bottom support platform 202, so that the second rotating drive assembly 3 drives the bottom support platform 202 to rotate; The first linear drive mechanism 4 is used to drive the second rotating drive assembly 3, the first rotating drive assembly 2, and the flow meter mounting rod 1 to lift and lower, thereby adjusting the water immersion depth of the flow meter body to meet the data acquisition requirements; The first linear drive mechanism 4 is fixed to the upper support platform 402, and the first linear drive mechanism 4 has a third output end 401 that can move axially reciprocally.

[0031] In one embodiment, such as Figure 1 As shown, the flow meter calibration device also includes a second linear drive mechanism 5, which is used to adjust the lateral position of the flow meter mounting rod 1. The second linear drive mechanism 5 includes a guide rail 501 and a slide table 502 slidably connected to the guide rail 501. The second linear drive mechanism 5 also includes a drive motor 503 and a lead screw that is driven by the drive motor 503. The lead screw is threadedly engaged with the slide table 502, and the slide table 502 is fixedly connected to the upper support platform 402, so that the drive motor 503 drives the upper support platform 402 to perform reciprocating linear motion, adjusting the lateral position of the flow meter mounting rod 1 in the water tank, that is, adjusting the lateral position of the flow meter body in the water tank to meet the measurement requirements.

[0032] In one embodiment, such as Figure 5As shown, a side plate 3021 is fixedly connected to one side of the middle support platform 302; the side plate 3021 is fixedly installed with the second rotary drive assembly 3, that is, the side plate 3021 provides an installation location for the second rotary drive assembly 3; the side plate 3021 has a horizontal notch 3022 for the first gear 303 to pass through, providing clearance space.

[0033] In one embodiment, such as Figure 4 As shown, a stop block 3041 is fixedly connected to the periphery of the rotating shaft 304; the stop block 3041 cooperates with the bottom surface of the bottom support platform 202 to limit the axial displacement of the bottom support platform 202 and prevent the bottom support platform 202 from falling downward. Multiple counterweights 2021 are fixedly installed on the top surface of the bottom support platform 202 away from the first rotating drive assembly 2 to maintain the balance of the bottom support platform 202 and ensure that the bottom support platform 202 is as horizontal as possible, so that the flow meter mounting rod 1 can be in a vertical state in its natural state, that is, to ensure that the flow meter body can be in a vertical state, and data measurement can be performed in a vertical state.

[0034] In one embodiment, the upper end of the flow meter mounting rod 1 is provided with a threaded section; the threaded section is threadedly connected to the mounting member 101 to fix the flow meter mounting rod 1. Figure 3 As shown, the flow meter mounting rod 1 is threaded with at least one nut 1011. Specifically, two nuts 1011 can be fixed on the flow meter mounting rod 1, and the mounting part 101 is clamped between the two nuts 1011, thereby fixing the mounting part 101 to the flow meter mounting rod 1 and ensuring that the flow meter mounting rod 1 will not come off when it is pitched and rotated, thus ensuring the stability of the flow meter body; the bottom surface of the nut 1011 mates with the top surface of the mounting part 101.

[0035] In one embodiment, such as Figure 2 As shown, a connecting seat 3023 is fixed on the top of the middle support platform 302; the third output end 401 is provided with a connecting mating part; the connecting mating part is connected to the connecting seat 3023 so that the first linear drive mechanism 4 drives the middle support platform 302 to rise and fall, thereby driving the second rotary drive assembly 3, the first rotary drive assembly 2, the flow meter mounting rod 1 and the flow meter body to rise and fall, so as to achieve the effect of adjusting the water depth of the flow meter body.

[0036] In one embodiment, such as Figure 2 , 8As shown, the side of the connector 3023 has a pair of inverted T-shaped grooves 3024; the connecting part includes a pair of fixing plates 3025 fixed to the third output end 401. There are two third output ends 401, and each third output end 401 has a pair of fixing plates 3025 fixed at its end; one fixing plate 3025 is fixed to the bottom wall of the inverted T-shaped groove 3024; the other fixing plate 3025 is fixed to the opening of the inverted T-shaped groove 3024 to fix the third output end 401 to the connector 3023 for easy installation. During installation, the fixing plate 3025 is simply inserted into the inverted T-shaped groove 3024.

[0037] In one embodiment, such as Figure 6 As shown, a slider 3026 is fixedly installed on one side of the connecting seat 3023; the slider 3026 is slidably connected to the outer surface of the first linear drive mechanism 4 to assist in guiding the movement of the middle support platform 302; specifically, a vertical strip protrusion is provided on the outer side of the first linear drive mechanism 4, and the slider 3026 has a U-shaped structure. The slider 3026 slides in cooperation with the strip protrusion to guide the movement of the middle support platform 302, ensuring that the middle support platform 302 rises and falls smoothly, and also preventing the fixing plate 3025 from falling out of the inverted T-shaped groove 3024.

[0038] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A flow meter calibration device, characterized in that, include: A flow meter mounting rod (1) is used to fix the flow meter body; the flow meter mounting rod (1) is detachably fixed to the mounting component (101); A first rotary drive assembly (2) is used to drive the current meter mounting rod (1) to pitch and rotate, and the first rotary drive assembly (2) is fixedly installed on the bottom support platform (202); the first rotary drive assembly (2) has a first output end (201), and the first output end (201) is fixedly connected to the mounting member (101); The second rotary drive assembly (3) is used to drive the first rotary drive assembly (2) and the flow meter mounting rod (1) to rotate horizontally, and the second rotary drive assembly (3) is fixed to the middle support platform (302); the second rotary drive assembly (3) has a second output end (301); the second output end (301) is fixedly mounted with a first gear (303); The middle support platform (302) is rotatably connected to a rotating shaft (304); a second gear (305) is fixedly installed at one end of the rotating shaft (304), and the second gear (305) meshes with the first gear (303); the other end of the rotating shaft (304) is fixed to the bottom support platform (202) so that the second rotation drive assembly (3) drives the bottom support platform (202) to rotate. The first linear drive mechanism (4) is used to drive the second rotary drive assembly (3), the first rotary drive assembly (2) and the flow meter mounting rod (1) to rise and fall; the first linear drive mechanism (4) is fixed to the upper support platform (402) and has a third output end (401) that can reciprocate axially.

2. The flow meter calibration device according to claim 1, characterized in that, It also includes a second linear drive mechanism (5) for adjusting the lateral position of the flow meter mounting rod (1); the second linear drive mechanism (5) includes a guide rail (501) and a slide (502) slidably connected to the guide rail (501); the second linear drive mechanism (5) also includes a drive motor (503) and a lead screw that is driven by the drive motor (503); the lead screw is threadedly engaged with the slide (502), and the slide (502) is fixedly connected to the upper support platform (402) so that the drive motor (503) drives the upper support platform (402) to perform reciprocating linear motion.

3. The flow meter calibration device according to claim 1, characterized in that, A side plate (3021) is fixedly connected to one side of the middle support platform (302); the side plate (3021) is fixedly installed with the second rotary drive assembly (3); the side plate (3021) has a horizontal notch (3022) for the first gear (303) to pass through.

4. The flow meter calibration device according to claim 1, characterized in that, A stop block (3041) is fixedly connected to the circumference of the rotating shaft (304); the stop block (3041) cooperates with the bottom surface of the bottom support platform (202) to limit the axial displacement of the bottom support platform (202).

5. The flow meter calibration device according to claim 1, characterized in that, Multiple counterweights (2021) are fixedly installed on the top surface of the bottom support platform (202) away from the first rotary drive assembly (2) to maintain the balance of the bottom support platform (202).

6. A flow meter calibration device according to any one of claims 1-5, characterized in that, The upper end of the flow meter mounting rod (1) is provided with a threaded section; the threaded section is threadedly connected to the mounting part (101) to fix the flow meter mounting rod (1).

7. A flow meter calibration device according to claim 6, characterized in that, The flow meter mounting rod (1) is threaded with at least one nut (1011); the bottom surface of the nut (1011) mates with the top surface of the mounting part (101).

8. A flow meter calibration device according to any one of claims 1-5, characterized in that, The top of the middle support platform (302) is fixed with a connecting seat (3023); the third output end (401) is provided with a connecting mating part; the connecting mating part is connected to the connecting seat (3023) so that the first linear drive mechanism (4) drives the middle support platform (302) to rise and fall.

9. A flow meter calibration device according to claim 8, characterized in that, The connecting seat (3023) has at least one inverted T-shaped groove (3024) on its side; the connecting mating part includes a pair of fixing plates (3025) fixed to the third output end (401); one fixing plate (3025) is fixed to the bottom wall of the inverted T-shaped groove (3024); the other fixing plate (3025) is fixed to the opening of the inverted T-shaped groove (3024) to fix the third output end (401) to the connecting seat (3023).

10. A flow meter calibration device according to claim 9, characterized in that, A slider (3026) is fixedly installed on one side of the connecting seat (3023); the slider (3026) is slidably connected to the outer surface of the first linear drive mechanism (4).

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