Pressure sensor calibration device

Abstract

The utility model relates to the technical field of pressure sensor calibration, and discloses a pressure sensor calibration device, which comprises a detection table, two blanking grooves are formed in the top of the detection table in a penetrating manner, two placing frames are arranged at the top of the detection table, and rotating shafts are rotatably connected in the two placing frames. The outer surface of the rotating shaft is fixedly connected with a supporting plate, and the outer surface of the rotating shaft is sleeved with two torsional springs. According to the utility model, through cooperative use of the detection bench, the blanking groove, the placing frame, the rotating shaft, the supporting plate, the torsion spring, the weighing block, the elastic telescopic rod, the limiting rod and other structures, after the pressure sensor completes detection and resets to release clamping, the limiting fixation of the rotating shaft can be manually released, and the pressure sensor is completely blanked, so that the device is convenient and rapid, and the working efficiency is improved. And a worker does not need to carry out manual single continuous blanking work on the pressure sensors, so that the blanking efficiency of the pressure sensors is improved, and the overall detection efficiency of the pressure sensors is further improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure sensor calibration technology, and in particular to a pressure sensor calibration device. Background Technology

[0002] Pressure sensors are one of the most commonly used sensors in industrial practice. They are widely used in various industrial automation environments, including water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil wells, power, shipbuilding, machine tools, pipelines and many other industries. Equipment calibration refers to the act of testing and adjusting measuring equipment or standard parts to understand their accuracy.

[0003] Currently, when calibrating pressure sensors, although most methods involve testing multiple sensors simultaneously, after testing, workers still need to manually unload multiple pressure sensors continuously. After unloading, other sensors are placed, resulting in low unloading efficiency and consequently reducing the overall testing efficiency of the pressure sensors.

[0004] Therefore, it is necessary to provide a pressure sensor calibration device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pressure sensor calibration device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pressure sensor calibration device, comprising a testing platform, two feeding slots extending through the top of the testing platform, two placement frames disposed on the top of the testing platform, a rotating shaft rotatably connected inside each of the two placement frames, a support plate fixedly connected to the outer surface of the rotating shaft, two torsion springs sleeved on the outer surface of the rotating shaft, a fixing component disposed at one end of the rotating shaft, several partitions and clamping components disposed inside the placement frames, two electro-hydraulic rods fixedly mounted on the top of the testing platform, a connecting frame fixedly connected to the top of the two electro-hydraulic rods, several weighing blocks disposed inside the connecting frame, a moving component disposed on the top of the testing platform, one end of each torsion spring fixedly connected to the front or back of the connecting frame, and the other end fixedly connected to the rotating shaft, the several weighing blocks being arranged in a linear array and having the same weight.

[0007] As a further description of the above technical solution:

[0008] Several sliding grooves are provided on both sides of the inner wall of the connecting frame. The two placement frames are fixedly connected to each other, and the two sides of the weighing block are slidably connected inside the two sliding grooves respectively.

[0009] As a further description of the above technical solution:

[0010] Two guide plates are fixedly connected to the top of the testing platform. Each guide plate has a guide groove. The connecting frame is slidably connected to the two guide grooves, and the two guide plates are arranged opposite to each other.

[0011] As a further description of the above technical solution:

[0012] The fixing component includes an elastic telescopic rod fixedly connected to the front of the placement frame. The telescopic end of the elastic telescopic rod is fixedly connected to a limiting plate. The back of the limiting plate is fixedly connected to a limiting rod. The other end of the limiting rod is movably inserted into the rotating shaft. The limiting rod is square in shape.

[0013] As a further description of the above technical solution:

[0014] The clamping assembly includes an electric push rod fixedly installed on one side of the inner wall of the placement frame, and a clamping plate is fixedly connected to the telescopic end of the electric push rod.

[0015] As a further description of the above technical solution:

[0016] The top of the testing platform has two connecting slots, and two connecting blocks are slidably connected inside each of the two connecting slots. The front and back of the two placement frames are respectively fixedly connected to four connecting blocks, and the two connecting slots are arranged opposite to each other.

[0017] As a further description of the above technical solution:

[0018] The moving component includes a motor fixedly mounted on one side of the testing table, and a threaded rod is rotatably connected inside one of the connecting slots.

[0019] As a further description of the above technical solution:

[0020] The output end of the motor is fixedly connected to one end of the threaded rod, and the threaded rod is threadedly connected to two of the connecting blocks.

[0021] This utility model has the following beneficial effects:

[0022] 1. Compared with existing technologies, this pressure sensor calibration device, through the coordinated use of a testing platform, a feeding trough, a placement frame, a rotating shaft, a support plate, a torsion spring, a weighing block, an elastic telescopic rod, and a limiting rod, enables the pressure sensor to be tested and reset after the clamping is released. The limiting fixation of the rotating shaft can then be manually released to allow the entire pressure sensor to be fed out. This is convenient and quick, and eliminates the need for manual, continuous feeding of individual pressure sensors by workers, thus improving the feeding efficiency of the pressure sensor and consequently improving the overall testing efficiency of the pressure sensor.

[0023] 2. Compared with the prior art, this pressure sensor calibration device, through the coordinated use of a testing platform, two placement frames, a support plate, a connecting frame, a clamp, a connecting groove, a connecting block, and a threaded rod, can perform loading or unloading and loading operations on the other placement frame while the pressure sensor inside one placement frame is being tested. This improves the continuity of pressure sensor testing, further enhances the testing efficiency of the pressure sensor, and thus improves the practicality of the device. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a pressure sensor calibration device proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the connecting block and threaded rod of a pressure sensor calibration device proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the clamping plate and rotating shaft of a pressure sensor calibration device proposed in this utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Testing table; 2. Feed chute; 3. Placement frame; 4. Rotating shaft; 5. Support plate; 6. Torsion spring; 7. Partition plate; 8. Electro-hydraulic rod; 9. Connecting frame; 10. Weighing block; 11. Slide groove; 12. Guide plate; 13. Guide groove; 14. Elastic telescopic rod; 15. Limiting plate; 16. Limiting rod; 17. Electric push rod; 18. Clamping plate; 19. Connecting groove; 20. Connecting block; 21. Motor; 22. Threaded rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1-4This utility model provides a pressure sensor calibration device, comprising a testing platform 1, with two feeding grooves 2 extending through the top of the testing platform 1, and two placement frames 3 fixedly connected to each other on the top of the testing platform 1. A rotating shaft 4 is rotatably connected inside each of the two placement frames 3, and a support plate 5 is fixedly connected to the outer surface of the rotating shaft 4. Two torsion springs 6 are sleeved on the outer surface of the rotating shaft 4, and a fixing component is provided at one end of the rotating shaft 4. Several partitions 7 and clamping components are provided inside the placement frames 3. Two electric hydraulic rods 8 are fixedly installed on the top of the testing platform 1, and a connecting frame 9 is fixedly connected to the top of the two electric hydraulic rods 8. Several sliding grooves 11 are provided on both sides of the inner wall of the connecting frame 9, and several weighing blocks 10 are provided inside the connecting frame 9. A moving component is provided on the top of the testing platform 1.

[0032] The top of the testing table 1 is fixedly connected to two guide plates 12, and each guide plate 12 is provided with a guide groove 13. The connecting frame 9 is slidably connected to the two guide grooves 13. Through the setting of the guide plates 12 and the guide grooves 13, the moving connecting frame 9 can be guided and limited, thereby improving its stability during movement.

[0033] The fixing component includes an elastic telescopic rod 14 fixedly connected to the front of the placement frame 3. The telescopic end of the elastic telescopic rod 14 is fixedly connected to a limiting plate 15, and the back of the limiting plate 15 is fixedly connected to a limiting rod 16. The other end of the limiting rod 16 is movably inserted into the rotating shaft 4. By setting the fixing component, the rotating shaft 4 can be limited and fixed, preventing the pressure sensor from being placed on it and causing the support to rotate and thus preventing the pressure sensor from moving and detecting.

[0034] The clamping assembly includes an electric push rod 17 fixedly installed on one side of the inner wall of the placement frame 3. The telescopic end of the electric push rod 17 is fixedly connected to a clamping plate 18. By setting up the clamping assembly, the pressure sensor placed inside the placement frame 3 can be fixed, thereby improving its stability during the detection process.

[0035] The top of the testing platform 1 has two connecting slots 19, and two connecting blocks 20 are slidably connected inside each of the two connecting slots 19. The front and back of the two placement frames 3 are fixedly connected to four connecting blocks 20 respectively. The moving component includes a motor 21 fixedly installed on one side of the testing platform 1. A threaded rod 22 is rotatably connected inside one of the connecting slots 19. The output end of the motor 21 is fixedly connected to one end of the threaded rod 22. The threaded rod 22 is threadedly connected to two of the connecting blocks 20. Through the structure of the connecting slots 19 and the moving component, it is possible to load or unload materials into the other placement frame 3 while the pressure sensor inside one placement frame 3 is performing the detection work, thereby improving the continuity of pressure sensor detection, further improving the detection efficiency of the pressure sensor, and thus improving the practicality of the device.

[0036] Working principle: In use, first place the pressure sensor collection frame below the two feeding troughs 2, and under the limitation of the partition plate 7, place the pressure sensor to be calibrated in the corresponding area inside one of the placement frames 3. Then, start the corresponding electric push rod 17, which drives the corresponding clamping plate 18. The moving clamping plate 18 clamps and fixes the placed pressure sensor. Then, start the motor 21, which drives the threaded rod 22 to rotate. With the cooperation of the connecting groove 19 and the connecting block 20, the two placement frames 3 drive the corresponding support plate 5 and the electric push rod. 17 and clamping plate 18 and other structures move, and after the pressure sensor inside one of the placement frames 3 is moved to below several weighing blocks 10, the pressure sensor to be calibrated can be placed inside another placement frame 3. During this process, two electric hydraulic rods 8 are activated to retract their telescopic ends, which drive the connecting frame 9 and the weighing block 10 to move down. After the weighing block 10 abuts against the force-bearing end of the pressure sensor, the connecting frame 9 continues to move down. After the weighing block 10 slides inside the corresponding slide groove 11, the weighing block 10 can be completely placed on the pressure sensor for testing.

[0037] After a batch of pressure sensors are detected and the electric hydraulic rod 8 is reset, the motor 21 is restarted to reverse it, resetting the placement frame 3 and the detected pressure sensors. At the same time, another placement frame 3 and the placed pressure sensors are moved to the weighing block 10 for detection. If any of the detected pressure sensors have inaccurate weighing, the corresponding electric push rod 17 can be activated to move the clamping plate 18, releasing the pressure sensor from its clamping and allowing it to be manually removed. Meanwhile, other pressure sensors can be unloaded simultaneously by manually pulling the corresponding limit plate 15 to move the limit rod 16, releasing the limit on the rotating shaft 4. Under the weight of the pressure sensors, the support plate 5 rotates, and the torsion spring 6 rotates, generating elastic force, causing the pressure sensors to fall from the same unloading trough 2 into the collection frame. Then, under the elastic force of the torsion spring 6, the support plate 5 is reset, and the limit rod 16 is reset, completing the unloading of the pressure sensors.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure sensor calibration device, comprising a testing platform (1), characterized in that: The top of the testing platform (1) has two feeding slots (2) through it. The top of the testing platform (1) has two placement frames (3). The interior of each of the two placement frames (3) is rotatably connected to a rotating shaft (4). The outer surface of the rotating shaft (4) is fixedly connected to a support plate (5). The outer surface of the rotating shaft (4) is fitted with two torsion springs (6). One end of the rotating shaft (4) is provided with a fixing component. The interior of the placement frame (3) is provided with several partitions (7) and clamping components. The top of the testing platform (1) is fixedly installed with two electric hydraulic rods (8). The top of the two electric hydraulic rods (8) is fixedly connected to a connecting frame (9). The interior of the connecting frame (9) is provided with several weighing blocks (10). The top of the testing platform (1) is provided with a moving component.

2. The pressure sensor calibration device according to claim 1, characterized in that: Several grooves (11) are provided on both sides of the inner wall of the connecting frame (9), and the two placement frames (3) are fixedly connected to each other.

3. The pressure sensor calibration device according to claim 1, characterized in that: The top of the testing platform (1) is fixedly connected to two guide plates (12), and each of the two guide plates (12) is provided with a guide groove (13). The connecting frame (9) is slidably connected to the two guide grooves (13).

4. The pressure sensor calibration device according to claim 1, characterized in that: The fixing component includes an elastic telescopic rod (14) fixedly connected to the front of the placement frame (3). The telescopic end of the elastic telescopic rod (14) is fixedly connected to a limiting plate (15). The back of the limiting plate (15) is fixedly connected to a limiting rod (16). The other end of the limiting rod (16) is movably inserted into the rotating shaft (4).

5. A pressure sensor calibration device according to claim 1, characterized in that: The clamping assembly includes an electric push rod (17) fixedly installed on one side of the inner wall of the placement frame (3), and the telescopic end of the electric push rod (17) is fixedly connected to a clamping plate (18).

6. The pressure sensor calibration device according to claim 1, characterized in that: The top of the testing platform (1) has two connecting slots (19), and two connecting blocks (20) are slidably connected inside each of the two connecting slots (19). The front and back of the two placement frames (3) are respectively fixedly connected to four connecting blocks (20).

7. A pressure sensor calibration device according to claim 6, characterized in that: The moving component includes a motor (21) fixedly mounted on one side of the testing table (1), and a threaded rod (22) is rotatably connected inside one of the connecting slots (19).

8. A pressure sensor calibration device according to claim 7, characterized in that: The output end of the motor (21) is fixedly connected to one end of the threaded rod (22), and the threaded rod (22) is threadedly connected to two of the connecting blocks (20).

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