Calibration device for metal tube float flowmeter

Abstract

The utility model provides a metal tube float flowmeter calibration device, which relates to the technical field of flowmeters and comprises a detection table, supporting legs are mounted at four corners of the bottom end of the detection table, a fixing seat is mounted on one side of the top end of the detection table, a metal tube float flowmeter main body is mounted on the inner side of the mounting seat, and the metal tube float flowmeter main body is mounted on the inner side of the mounting seat. One end of the connecting hose is communicated with one end of the metal tube float flowmeter main body, and a detection mechanism is arranged at the bottom end of the detection table; the detection mechanism is arranged below the detection table, and a water tank, a water pump, a water conveying pipe and a water return pipe of the detection mechanism are matched with one another, so that a metal pipe float flowmeter body can be calibrated according to the standard that water flow passes through the metal pipe float flowmeter body and a standard flowmeter; the metal tube float flowmeter main body is better in calibration effect and more accurate in calibration result, so that the accuracy of the device in use is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flowmeters, in particular to a calibration device for a metal tube float flowmeter. Background Art

[0002] The metal tube float flow meter is produced and researched based on the variable area measurement principle, and is suitable for measuring liquids and gases. It has an all-metal structure and is available in indicator type, electric remote transmission type, corrosion-resistant type, high-pressure type, jacket type, and explosion-proof type. It is widely used in petroleum, chemical industry, power generation, pharmaceuticals, food, water treatment, etc. In the process of flow measurement under complex and harsh environmental conditions and various media conditions, the metal tube float flow meter needs to be calibrated during production and processing;

[0003] For example, application number CN219104126U discloses "an intelligent metal tube float flowmeter calibration device" and specifically discloses: a stepper motor is fixedly mounted on the bracket, the motor shaft of the stepper motor extends upward, and a driving gear is fixedly mounted on the motor shaft; a first plane bearing and a second plane bearing are mounted on the bracket, and the driven gear is mounted between the first plane bearing and the second plane bearing, and is supported and mounted on the bracket by the first plane bearing and the second plane bearing; however, in the above technology, when calibrating the flowmeter, only the guide rod is driven to move up and down to simulate the flow, which is not accurate enough in actual detection, and it is inconvenient to calibrate it using real water flow and a standard flowmeter, thereby reducing the accuracy of the device when in use. Therefore, the utility model proposes a metal tube float flowmeter calibration device to solve the above problems. Utility Model Content

[0004] In view of the above problems, the utility model proposes a metal tube float flowmeter calibration device, which solves the problem in the above technology that when calibrating the flowmeter, only the guide rod is driven up and down to simulate the flow, which is not accurate enough in actual detection and it is inconvenient to use the real water flow and the standard flowmeter to calibrate it, thereby reducing the accuracy of the device when used.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a metal tube float flowmeter calibration device, including a detection platform, support legs are installed at the four corners of the bottom end of the detection platform, a fixing seat is installed on one side of the top of the detection platform, a standard flowmeter is installed on the top of the fixing seat, a connecting hose is installed on one side of the standard flowmeter, a mounting seat is installed on the other side of the top of the detection platform, a mounting mechanism is arranged inside the mounting seat, a metal tube float flowmeter body is installed on the inner side of the mounting seat, one end of the connecting hose is connected to one end of the metal tube float flowmeter body, and a detection mechanism is arranged at the bottom end of the detection platform.

[0006] A further improvement is that the detection mechanism includes a water tank, a water pump, a water supply pipe and a return pipe, the water tank is installed at the bottom end of the detection platform, a water pump is installed on one side of the water tank, one end of the water pump is connected to one side of the water tank, a water supply pipe is installed on the other end of the water pump, one end of the water supply pipe is connected to one end of the metal tube float flowmeter body, a return pipe is installed on one end of the standard flowmeter, and one end of the return pipe is connected to one side of the water tank.

[0007] Further improvements are: the mounting mechanism includes a mounting cavity, a baffle, a servo motor, a first bevel gear, a second bevel gear, a threaded rod, a threaded sleeve and a limiting structure, the mounting cavity is mounted at the front end and the rear end of the mounting seat, a baffle is arranged inside the mounting cavity, one end of the baffle extends to the inner side of the mounting seat, a servo motor is installed on one side of the mounting cavity, a first bevel gear is installed below one side of the mounting cavity, the output end of the servo motor is connected to one end of the first bevel gear, a second bevel gear is meshed below the first bevel gear, a threaded rod is installed at one end of the second bevel gear, a threaded sleeve is arranged on the outer side wall of the threaded rod, and one end of the threaded sleeve is connected to one end of the baffle.

[0008] A further improvement is that two baffles are arranged on the inner side of the mounting seat, and the two baffles are symmetrically distributed about the central axis of the mounting seat.

[0009] A further improvement is that the limiting structure includes a limiting rod and a limiting sleeve, the limiting rod is installed above the inside of the installation cavity, the outer side wall of the limiting rod is provided with a limiting sleeve, and the bottom end of the limiting sleeve is connected to one end of the baffle.

[0010] A further improvement is that the cross section of the limiting rod is smaller than the cross section of the limiting sleeve, and a sliding structure is formed between the limiting rod and the limiting sleeve.

[0011] The beneficial effects of the utility model are as follows: by arranging a detection mechanism below the detection platform, and utilizing the mutual cooperation among the water tank, water pump, water delivery pipe and return pipe of the detection mechanism, the metal tube float flowmeter body can be calibrated by utilizing the standard of water flowing through the metal tube float flowmeter body and the standard flowmeter, so that the metal tube float flowmeter body has a better effect during calibration, and the calibration result is more accurate, thereby greatly improving the accuracy of the device during use; by arranging a mounting mechanism inside the mounting seat, and utilizing the mutual cooperation among the mounting cavity, baffle, servo motor, first bevel gear, second bevel gear, threaded rod, threaded sleeve, limit rod and limit sleeve of the mounting mechanism, the metal tube float flowmeter body can be conveniently installed and fixed, so that the metal tube float flowmeter body is more stable and not easy to shake during calibration, thereby greatly improving the practicality of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the overall structure of the installation mechanism of the utility model;

[0014] Figure 3 It is a schematic diagram of the side cross-sectional structure of the installation mechanism of the utility model;

[0015] Figure 4 It is a partial side cross-sectional structural schematic diagram of the installation mechanism of the utility model.

[0016] Among them: 1. test table; 2. support legs; 3. fixing seat; 4. standard flow meter; 5. connecting hose; 6. mounting seat; 7. metal tube float flow meter body; 8. water tank; 9. water pump; 10. water supply pipe; 11. return pipe; 12. installation cavity; 13. baffle; 14. servo motor; 15. first bevel gear; 16. second bevel gear; 17. threaded rod; 18. threaded sleeve; 19. limit rod; 20. limit sleeve. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0018] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a calibration device for a metal tube float flowmeter, comprising a test bench 1, wherein support legs 2 are installed at the four corners of the bottom end of the test bench 1, a fixing seat 3 is installed on one side of the top end of the test bench 1, a standard flowmeter 4 is installed on the top end of the fixing seat 3, a connecting hose 5 is installed on one side of the standard flowmeter 4, a mounting seat 6 is installed on the other side of the top end of the test bench 1, a mounting mechanism is arranged inside the mounting seat 6, a metal tube float flowmeter body 7 is installed on the inner side of the mounting seat 6, one end of the connecting hose 5 is connected to one end of the metal tube float flowmeter body 7, and a detection mechanism is arranged at the bottom end of the test bench 1.

[0019] The detection mechanism includes a water tank 8, a water pump 9, a water pipe 10 and a return pipe 11. The water tank 8 is installed at the bottom of the detection platform 1. A water pump 9 is installed on one side of the water tank 8. One end of the water pump 9 is connected to one side of the water tank 8. The other end of the water pump 9 is installed with a water pipe 10. One end of the water pipe 10 is connected to one end of the metal tube float flowmeter body 7. A return pipe 11 is installed at one end of the standard flowmeter 4. One end of the return pipe 11 is connected to one side of the water tank 8. When in use, the flanges at both ends of the metal tube float flowmeter body 7 are used to connect the connecting hose 5 to one end of the metal tube float flowmeter body 7 respectively. The water pipe One end of 10 is connected to the other end of the metal tube float flowmeter body 7, and then the water pump 9 is started, and the water in the water tank 8 is pumped into the metal tube float flowmeter body 7 by the water pipe 10, flows through the metal tube float flowmeter body 7 through the inside of the standard flowmeter 4, and then flows back to the inside of the water tank 8 through the return pipe 11. At this time, the readings on the standard flowmeter 4 and the metal tube float flowmeter body 7 are observed respectively, and the metal tube float flowmeter body 7 is calibrated using the readings on the standard flowmeter 4, so that the metal tube float flowmeter body 7 has a better effect during calibration and the calibration result is more accurate, thereby greatly improving the accuracy of the device when in use.

[0020] The mounting mechanism includes a mounting cavity 12, a baffle 13, a servo motor 14, a first bevel gear 15, a second bevel gear 16, a threaded rod 17, a threaded sleeve 18 and a limiting structure. The mounting cavity 12 is mounted at the front and rear ends of the mounting seat 6. A baffle 13 is provided inside the mounting cavity 12, and one end of the baffle 13 extends to the inner side of the mounting seat 6. A servo motor 14 is installed on one side of the mounting cavity 12. A first bevel gear 15 is installed below one side of the interior of the mounting cavity 12. The output end of the servo motor 14 is connected to one end of the first bevel gear 15. A second bevel gear 16 is meshed below the first bevel gear 15. A threaded rod 17 is installed at one end of the second bevel gear 16. A threaded sleeve 18 is provided on the outer side wall of the threaded rod 17. One end of the threaded sleeve 18 is connected to one end of the baffle 13. Two baffles 13 are arranged on the inner side of the mounting seat 6, and the two baffles 13 are symmetrically distributed about the central axis of the mounting seat 6. When in use, the two ends of the metal tube float flowmeter body 7 are placed above the mounting seat 6, and then the servo motor 14 is started to drive the first bevel gear 15 to rotate. Since the first bevel gear 15 and the second bevel gear 16 are meshed with each other, the second bevel gear 16 is used to drive the threaded rod 17 to rotate, so as to drive the threaded sleeve 18 to move, and then under the limit of the limit rod 19 and the limit sleeve 20, the threaded sleeve 18 is used to drive the baffle 13 to move, and the baffle 13 is moved to the top of the mounting seat 6, and the position of the metal tube float flowmeter body 7 is fixed, so that the metal tube float flowmeter body 7 is more stable and not easy to shake during calibration, thereby greatly improving the practicality of the device when in use.

[0021] The limiting structure includes a limiting rod 19 and a limiting sleeve 20. The limiting rod 19 is installed above the inside of the installation cavity 12. The limiting sleeve 20 is arranged on the outer wall of the limiting rod 19. The bottom end of the limiting sleeve 20 is connected to one end of the baffle 13. The cross section of the limiting rod 19 is smaller than the cross section of the limiting sleeve 20. A sliding structure is formed between the limiting rod 19 and the limiting sleeve 20. When in use, the limiting rod 19 and the limiting sleeve 20 cooperate with each other to limit the baffle 13 when it moves, so that the baffle 13 is more stable when it moves.

[0022] Working principle: The staff first places the two ends of the metal tube float flowmeter body 7 above the mounting seat 6, and then starts the servo motor 14 to drive the first bevel gear 15 to rotate. Since the first bevel gear 15 and the second bevel gear 16 are meshed with each other, the second bevel gear 16 is used to drive the threaded rod 17 to rotate, thereby driving the threaded sleeve 18 to move, and then under the limit of the limit rod 19 and the limit sleeve 20, the threaded sleeve 18 is used to drive the baffle 13 to move, and the baffle 13 is moved to the top of the mounting seat 6 to fix the position of the metal tube float flowmeter body 7. Then, the flanges at both ends of the metal tube float flowmeter body 7 are used to connect the connecting hose 5 to one end of the metal tube float flowmeter body 7, and the water pipe 1 0 is connected to the other end of the metal tube float flowmeter body 7, and then the water pump 9 is started, and the water in the water tank 8 is pumped into the metal tube float flowmeter body 7 by the water pipe 10, and the water flows through the metal tube float flowmeter body 7 through the inside of the standard flowmeter 4, and then flows back to the inside of the water tank 8 through the return pipe 11. At this time, the readings on the standard flowmeter 4 and the metal tube float flowmeter body 7 are observed respectively, and the metal tube float flowmeter body 7 is calibrated using the readings on the standard flowmeter 4. After the calibration is completed, the servo motor 14 is started to reverse it, and the baffle 13 is moved to the inside of the installation cavity 12, and then the metal tube float flowmeter body 7 and the water pipe 10 and the connecting hose 5 are removed respectively, and the metal tube float flowmeter body 7 can be removed.

[0023] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A metal tube float flowmeter calibration device, comprising a test bench (1), characterized in that: Support legs (2) are installed at the four corners of the bottom end of the detection platform (1); a fixing seat (3) is installed on one side of the top end of the detection platform (1); a standard flow meter (4) is installed on the top end of the fixing seat (3); a connecting hose (5) is installed on one side of the standard flow meter (4); a mounting seat (6) is installed on the other side of the top end of the detection platform (1); a mounting mechanism is arranged inside the mounting seat (6); a metal tube float flow meter body (7) is installed on the inner side of the mounting seat (6); one end of the connecting hose (5) is connected to one end of the metal tube float flow meter body (7); and a detection mechanism is arranged at the bottom end of the detection platform (1).

2. A metal tube float flowmeter calibration device according to claim 1, characterized in that: The detection mechanism comprises a water tank (8), a water pump (9), a water delivery pipe (10) and a return pipe (11); the water tank (8) is installed at the bottom end of the detection platform (1); a water pump (9) is installed on one side of the water tank (8); one end of the water pump (9) is connected to one side of the water tank (8); the other end of the water pump (9) is installed with a water delivery pipe (10); one end of the water delivery pipe (10) is connected to one end of a metal tube float flowmeter body (7); a return pipe (11) is installed at one end of the standard flowmeter (4); one end of the return pipe (11) is connected to one side of the water tank (8).

3. The metal tube float flowmeter calibration device according to claim 1, characterized in that: The mounting mechanism comprises a mounting cavity (12), a baffle (13), a servo motor (14), a first bevel gear (15), a second bevel gear (16), a threaded rod (17), a threaded sleeve (18) and a limiting structure. The mounting cavity (12) is mounted at the front end and the rear end of the mounting seat (6). The mounting cavity (12) is provided with a baffle (13) inside. One end of the baffle (13) extends to the inner side of the mounting seat (6). The servo motor (14) is mounted on one side of the mounting cavity (12). 4), a first bevel gear (15) is installed at the lower part of one side inside the installation cavity (12), the output end of the servo motor (14) is connected to one end of the first bevel gear (15), a second bevel gear (16) is meshed below the first bevel gear (15), a threaded rod (17) is installed at one end of the second bevel gear (16), a threaded sleeve (18) is provided on the outer side wall of the threaded rod (17), and one end of the threaded sleeve (18) is connected to one end of the baffle (13).

4. A metal tube float flowmeter calibration device according to claim 3, characterized in that: Two baffles (13) are arranged on the inner side of the mounting seat (6), and the two baffles (13) are symmetrically distributed about the central axis of the mounting seat (6).

5. A metal tube float flowmeter calibration device according to claim 4, characterized in that: The limiting structure comprises a limiting rod (19) and a limiting sleeve (20); the limiting rod (19) is installed above the inside of the installation cavity (12); the outer wall of the limiting rod (19) is provided with a limiting sleeve (20); the bottom end of the limiting sleeve (20) is connected to one end of the baffle (13).

6. A metal tube float flowmeter calibration device according to claim 5, characterized in that: The cross section of the limiting rod (19) is smaller than the cross section of the limiting sleeve (20), and a sliding structure is formed between the limiting rod (19) and the limiting sleeve (20).

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