Flowmeter calibrating device

Abstract

The utility model relates to the technical field of flow meters, in particular to a flow meter calibrating device which comprises a detecting table, a guide groove is formed in the top of the detecting table, a driving motor is installed on the side face of the detecting table, the output end of the driving motor is fixedly connected with a two-way threaded rod, and the two-way threaded rod penetrates through the detecting table and extends into the guide groove. The outer surface of the bidirectional threaded rod is in threaded connection with a moving block, the top of the moving block is fixedly connected with a telescopic rod, the top of the telescopic rod is fixedly connected with a mounting block, a guide hole is formed in the side face of the mounting block, and a water guide pipe is fixedly connected into the guide hole. After the driving motor is started, the two-way threaded rod guides the two moving blocks to move in the opposite directions, then the mounting block is driven to move, the flowmeter placed on the top of the table is detected conveniently, in addition, the device can adapt to detection of flowmeters of different sizes, and therefore the operation convenience and the working efficiency are improved.

Description

Technical Field

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

[0002] A flow meter is an instrument that indicates the measured flow rate and the total volume of fluid within a selected time interval. The National Committee for Terminology in Science and Technology defines it as: an instrument that indicates the measured flow rate and the total volume of fluid within a selected time interval. Flow meters are further classified into rotor flow meters, throttling flow meters, slot flow meters, volumetric flow meters, electromagnetic flow meters, ultrasonic flow meters, and weirs, etc. They are also classified by the medium: liquid flow meters and gas flow meters. Flow meters need to be tested before leaving the factory.

[0003] Existing technologies, such as CN219798505U, describe a flow meter calibration device. Through a sealing mechanism, when the flow tube comes into contact with the flow meter to be tested, the pressure block is squeezed to compress the elastic air bladder, resulting in a better sealing effect. Furthermore, the elastic fit allows the calibration device to perfectly seal with flow meters of different interface shapes, increasing the applicability of the calibration device.

[0004] However, this device still has some shortcomings in its use:

[0005] 1. During the use of this device, since the position of the support column is fixed, the position of the flow tube is also fixed during operation. This makes it impossible for the device to detect flow meters of different sizes, thus reducing its practicality.

[0006] 2. The detection height of this device is fixed, which limits its flexibility of use. Furthermore, it uses an elastic airbag for sealed detection, but this design makes the airbag difficult to reuse, posing a limitation and thus affecting detection efficiency. Utility Model Content

[0007] The purpose of this invention is to provide a flowmeter calibration device to address the issues raised in the background art. Because the position of the support column is fixed, the position of the flow tube is also fixed during operation, making it impossible to test flowmeters of different sizes, thus reducing its practicality. Furthermore, the fixed testing height limits its flexibility. Additionally, while it uses an elastic airbag for sealed testing, this design makes the airbag difficult to reuse, posing limitations and affecting testing efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A flow meter calibration device includes a testing platform. A guide groove is provided on the top of the testing platform. A drive motor is installed on the side of the testing platform. A bidirectional threaded rod is fixedly connected to the output end of the drive motor. The bidirectional threaded rod passes through the testing platform and extends into the guide groove. The bidirectional threaded rod is rotatably connected to the testing platform. A moving block is threadedly connected to the outer surface of the bidirectional threaded rod. A telescopic rod is fixedly connected to the top of the moving block. An installation block is fixedly connected to the top of the telescopic rod. A guide hole is provided on the side of the installation block. A water guide pipe is fixedly connected in the guide hole.

[0010] As a preferred embodiment of this utility model, the two ends of the water guide pipe extend to both sides of the mounting block, one end of the water guide pipe is threaded to a connecting pipe, and the end of the connecting pipe is fixedly connected to a sealing ring. Both the water guide pipe and the connecting pipe are located at the top of the testing platform.

[0011] As a preferred embodiment of this utility model, the top of the testing platform is provided with a placement platform, the top of the placement platform is provided with an installation groove, and a protective pad is fixedly connected in the installation groove.

[0012] As a preferred embodiment of this utility model, a fixing bolt is provided on the top of the placement platform. The fixing bolt passes through the placement platform and extends into the testing platform. The fixing bolt is threadedly connected to the placement platform.

[0013] As a preferred embodiment of this utility model, the bottom of the testing platform is fixedly connected to a support leg, and the top of the support leg is provided with a positioning hole.

[0014] As a preferred embodiment of this utility model, the outer surface of the drive motor is provided with a waterproof shell, and the waterproof shell is snapped into the testing platform.

[0015] As a preferred embodiment of this utility model, four fixing bolts are provided, and the four fixing bolts are respectively located at the top corner of the placement platform.

[0016] As a preferred embodiment of this utility model, two support legs are provided, both of which are L-shaped and positioned opposite each other.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, by setting up a drive motor, a bidirectional threaded rod, a moving block, a guide groove and a mounting block for coordinated use, after the drive motor is started, the bidirectional threaded rod will guide the two moving blocks to move in opposite directions, thereby driving the mounting block to move, so as to facilitate the detection of the flow meter placed on the top of the platform. In addition, the device can adapt to the detection of flow meters of different sizes, thereby improving the convenience of operation and work efficiency.

[0019] 2. In this utility model, by using a telescopic rod, connecting pipe, water guide pipe, sealing gasket, and waterproof shell in combination, the user can easily adjust the height of the rectangular block via the telescopic rod, thereby enhancing the convenience of operation. The combination of the connecting pipe and the flow meter makes it possible to inject water into the water guide pipe, and the sealing performance can be checked by injecting water into the flow meter, further improving the practicality of the product. In addition, the outer surface of the drive motor is equipped with a waterproof shell, which significantly enhances the safety during use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the top structure of the workbench of this utility model;

[0022] Figure 3 This is a schematic diagram of the side structure of the rectangular block of this utility model;

[0023] Figure 4 This is a schematic diagram of the top structure of the placement platform of this utility model.

[0024] In the diagram: 1. Testing platform; 2. Guide groove; 3. Two-way threaded rod; 4. Waterproof shell; 5. Support leg; 6. Positioning hole; 7. Placement platform; 8. Drive motor; 9. Moving block; 10. Telescopic rod; 11. Sealing ring; 12. Mounting block; 13. Water guide pipe; 14. Connecting pipe; 15. Guide hole; 16. Fixing bolt; 17. Mounting groove; 18. Protective pad. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] For examples, please refer to Figures 1-4 This utility model provides a technical solution:

[0027] A flow meter calibration device includes a testing platform 1. A guide groove 2 is provided on the top of the testing platform 1. A drive motor 8 is installed on the side of the testing platform 1. A bidirectional threaded rod 3 is fixedly connected to the output end of the drive motor 8. The bidirectional threaded rod 3 passes through the testing platform 1 and extends into the guide groove 2. The bidirectional threaded rod 3 is rotatably connected to the testing platform 1. A moving block 9 is threadedly connected to the outer surface of the bidirectional threaded rod 3. A telescopic rod 10 is fixedly connected to the top of the moving block 9. An installation block 12 is fixedly connected to the top of the telescopic rod 10. A guide hole 15 is provided on the side of the installation block 12. A water guide pipe 13 is fixedly connected in the guide hole 15. A support leg 5 is fixedly connected to the bottom of the testing platform 1. A positioning hole 6 is provided on the top of the support leg 5.

[0028] The bidirectional threaded rod 3 moves two moving blocks 9 toward each other, thereby moving the mounting block 12, which facilitates the detection of the flow meter on the top of the placement platform 7. It can also detect flow meters of different sizes, improving convenience and work efficiency.

[0029] According to this embodiment Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the two ends of the water guide pipe 13 extend to both sides of the mounting block 12. One end of the water guide pipe 13 is threadedly connected to the connecting pipe 14. The end of the connecting pipe 14 is fixedly connected to the sealing ring 11. The water guide pipe 13 and the connecting pipe 14 are both located on the top of the testing platform 1. The top of the testing platform 1 is provided with a placement platform 7. The top of the placement platform 7 is provided with a mounting groove 17. A protective pad 18 is fixedly connected in the mounting groove 17. The top of the placement platform 7 is provided with a fixing bolt 16. The fixing bolt 16 passes through the placement platform 7 and extends into the testing platform 1. The fixing bolt 16 is threadedly connected to the placement platform 7. The outer surface of the drive motor 8 is provided with a waterproof shell 4. The waterproof shell 4 is snapped into the testing platform 1. There are four fixing bolts 16. The four fixing bolts 16 are located at the top corner of the placement platform 7. There are two support legs 5. The two support legs 5 are both L-shaped and are positioned opposite each other.

[0030] The pipe is connected to the flow meter via the connecting pipe 14. Water is injected into the water guide pipe 13. The sealing performance is tested by injecting water into the flow meter, which improves its practicality. A waterproof shell 4 is provided on the outer surface of the drive motor 8 to improve safety.

[0031] The working process of this utility model is as follows: When using the flow meter calibration device designed in this scheme, first check whether the device is working properly. Place the flow meter to be tested on the top of the placement platform 7. After starting the drive motor 8, the bidirectional threaded rod 3 will move the two moving blocks 9 towards each other, thereby moving the mounting block 12, which facilitates the testing of the flow meter on the top of the placement platform 7. At the same time, flow meters of different sizes can be tested, which improves convenience and work efficiency. The telescopic rod 10 can adjust the height of the mounting block 12, and can also adjust the height of the connecting pipe 14 and the water guide pipe 13, which improves convenience. After connecting the connecting pipe 14 to the flow meter's pipeline, water is injected into the water guide pipe 13. By injecting water into the flow meter, the sealing performance is tested, which improves practicality. A waterproof shell 4 is provided on the outer surface of the drive motor 8 to improve safety. A protective pad 18 is provided on the top of the placement platform 7 to protect the bottom of the flow meter.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flow meter proving device comprising a test bench (1), characterized in that: The top of the detection platform (1) is provided with a guide groove (2), the side of the detection platform (1) is provided with a driving motor (8), the output end of the driving motor (8) is fixedly connected with a bidirectional threaded rod (3), the bidirectional threaded rod (3) penetrates through the detection platform (1) and extends into the guide groove (2), the bidirectional threaded rod (3) is rotatably connected with the detection platform (1), the outer surface of the bidirectional threaded rod (3) is threadedly connected with a moving block (9), the top of the moving block (9) is fixedly connected with an extension rod (10), the top of the extension rod (10) is fixedly connected with a mounting block (12), the side of the mounting block (12) is provided with a guide hole (15), the guide hole (15) is fixedly connected with a water guide pipe (13).

2. A flow meter proving device according to claim 1, wherein: Both ends of the water guide pipe (13) extend to the two sides of the mounting block (12), one end of the water guide pipe (13) is threadedly connected with a connecting pipe (14), the distal end of the connecting pipe (14) is fixedly connected with a sealing ring (11), the water guide pipe (13) and the connecting pipe (14) are located on the top of the detection platform (1).

3. A flow meter proving device as in claim 1, wherein: The top of the detection platform (1) is provided with a placing table (7), the top of the placing table (7) is provided with a mounting groove (17), and the mounting groove (17) is fixedly connected with a protective pad (18).

4. A flow meter proving device according to claim 3, wherein: The top of the placing table (7) is provided with a fixing bolt (16), the fixing bolt (16) penetrates through the placing table (7) and extends into the detection platform (1), and the fixing bolt (16) is threadedly connected with the placing table (7).

5. A flow meter proving device as in claim 1, wherein: The bottom of the detection platform (1) is fixedly connected with a supporting leg (5), and the top of the supporting leg (5) is provided with a positioning hole (6).

6. A flow meter proving device as in claim 1, wherein: The outer surface of the driving motor (8) is provided with a waterproof shell (4), and the waterproof shell (4) is clamped with the detection platform (1).

7. A flow meter proving device as in claim 4, wherein: The fixing bolt (16) is provided with four, and the four fixing bolts (16) are located at the top corners of the placing table (7) respectively.

8. A flow meter proving device as in claim 5, wherein: The supporting leg (5) is provided with two, the shape of the two supporting legs (5) is L-shaped, and the positions of the two supporting legs (5) are opposite.

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