Automatic calibration device of pressure instrument

Abstract

The utility model discloses an automatic calibration device of a pressure instrument, which comprises a calibration instrument body, a test frame and an installation shell, the test frame is provided with a placing frame, the installation shell is internally provided with a knocking mechanism for knocking the pressure instrument, the knocking mechanism comprises two rotating shafts which are rotatably connected in the installation shell, and the two rotating shafts are arranged on the placing frame. And cams and first gears are fixedly connected to the two rotating shafts, a motor is mounted on the side wall of the mounting shell through a mounting assembly, a second gear is fixedly connected to an output shaft of the motor, and a knocking rod is elastically connected to the inner wall of the mounting shell through a spring. According to the utility model, the knocking mechanism is arranged, and the knocking rod can quickly knock the body of the pressure gauge by starting the motor, so that the function of automatically knocking the pressure gauge is realized, and the automation degree of the equipment is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic calibration devices for pressure instruments, in particular to an automatic calibration device for pressure instruments. Background Art

[0002] Fully automatic pressure calibrators have important applications in industrial production, measurement and testing, scientific research, etc. It is often used to calibrate and verify pressure measuring equipment such as pressure sensors, pressure gauges, and pressure transmitters to ensure the accuracy and reliability of these equipment and ensure the safety and quality control of the production process.

[0003] In the prior art, some pressure instruments will be calibrated after production or long-term use. A fully automatic pressure calibrator is a device that can automatically calibrate pressure instruments. Although it can save a lot of manual operations, many tasks require the assistance of workers. For example, some pressure calibrators have the operation of knocking on the pressure gauge body, and the readings of the pressure gauge before and after the knocking need to be measured. However, these pressure calibrators require manual operation for the knocking action on the pressure gauge. Therefore, it is necessary to design an automatic calibration device for pressure instruments to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an automatic calibration device for a pressure instrument.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic calibration device for a pressure instrument comprises a calibrator body, a test stand and an installation shell, wherein a placement stand is provided on the test stand, a knocking mechanism for knocking the pressure gauge is provided in the installation shell, the knocking mechanism comprises two rotating shafts rotatably connected in the installation shell, a cam and a first gear are fixedly connected to the two rotating shafts, a motor is installed on the side wall of the installation shell through an installation assembly, a second gear is fixedly connected to the output shaft of the motor, a knocking rod is elastically connected to the inner wall of the installation shell through a spring, and fixed blocks are fixedly connected to the two side walls of the knocking rod, and the placement stand is provided with a driving mechanism for driving the installation shell to move.

[0007] Preferably, the driving mechanism comprises a sliding frame fixedly connected to the upper end of the placement rack, the upper end of the sliding frame is slidably connected to a moving frame, and a screw is provided on the inner wall of the sliding frame.

[0008] Preferably, two latches are provided through the side wall of the placement rack, and bolts are provided under the latches.

[0009] Preferably, a storage box is fixedly connected to the side wall of the calibrator body, and a side plate is penetrated through the side wall of the storage box.

[0010] Preferably, an iron sheet is fixedly connected to the side wall of the storage box, and two magnets are fixedly connected to the side wall of the side plate.

[0011] Preferably, a roller is provided on the side wall of the knocking rod, and a roller is also provided on the side wall of the cam.

[0012] The utility model has the following beneficial effects:

[0013] 1. This device is equipped with a knocking mechanism. By starting the motor, the knocking rod will quickly knock on the pressure gauge, realizing the function of automatically knocking the pressure gauge, thereby further improving the automation of the equipment;

[0014] 2. The device is provided with a screw rod, and by rotating the screw rod, the movable frame can drive the mounting shell to move left or right, so as to knock pressure instruments of different specifications, thereby expanding the application scope of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of an automatic calibration device for a pressure instrument proposed by the utility model;

[0016] Figure 2 for Figure 1 A magnified view of the structure at A;

[0017] Figure 3 This is a structural schematic diagram of an automatic calibration device for a pressure instrument proposed by the utility model;

[0018] Figure 4 for Figure 3 Enlarged view of the structure at B.

[0019] In the figure: 1 calibrator body, 2 storage box, 3 side panel, 4 test frame, 5 placement frame, 6 screw rod, 7 moving frame, 8 sliding frame, 9 knock rod, 10 spring, 11 fixing block, 12 cam, 13 latch, 14 bolt, 15 mounting housing, 16 first gear, 17 second gear, 18 motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4An automatic calibration device for a pressure instrument comprises a calibrator body 1, a test frame 4 and an installation shell 15. The calibrator body 1 is a ConsT811A intelligent fully automatic pressure calibrator. A placement frame 5 is provided on the test frame 4. A knocking mechanism for knocking the pressure gauge is provided in the installation shell 15. The knocking mechanism comprises two rotating shafts rotatably connected in the installation shell 15. A cam 12 and a first gear 16 are fixedly connected to the two rotating shafts. A motor 18 is installed on the side wall of the installation shell 15 through an installation assembly. The output shaft of the motor 18 is fixedly connected to a second gear 17. The inner wall of the installation shell 15 is elastically connected to a knocking rod 9 through a spring 10. Both side walls of the knocking rod 9 are fixedly connected to fixed blocks 11.

[0022] The placement rack 5 is provided with a driving mechanism for driving the installation shell 15 to move, and the driving mechanism includes a sliding frame 8 fixedly connected to the upper end of the placement rack 5, and the upper end of the sliding frame 8 is slidably connected to a moving frame 7. The inner wall of the sliding frame 8 is provided with a screw 6, and the inner bottom of the moving frame 7 is fixedly connected to the lower end of the installation shell 15.

[0023] In the utility model, two latches 13 are penetrated through the side wall of the placement rack 5, and bolts 14 are penetrated under the latches 13, so that the placement rack 5 can be disassembled, which is convenient for transportation of the equipment.

[0024] In the utility model, a storage box 2 is fixedly connected to the side wall of the calibration instrument body 1, and a side plate 3 is penetrated through the side wall of the storage box 2 to store the dismantled installation shell 15, making the transportation of the equipment more convenient.

[0025] In the utility model, the side wall of the storage box 2 is fixedly connected with an iron sheet, and the side wall of the side panel 3 is fixedly connected with two magnets. The two magnets can prevent the side panel 3 from being completely pulled out, and can also prevent the side panel 3 from moving randomly when the storage box 2 is completely blocked.

[0026] In the utility model, a roller is provided on the side wall of the knocking rod 9, and a roller is also provided on the side wall of the cam 12, which can reduce friction. It contacts the surface of the cam 12, and the rolling friction can greatly reduce the friction force compared to the sliding friction, so that the mechanism runs more smoothly, reduces wear and energy loss, and due to the reduction of friction force and the relatively smooth movement, the service life of the cam 12 and the entire mechanism can be effectively extended.

[0027] When in use, after the pressure gauge is installed on the test stand 4, when the calibrator body 1 needs to knock on the pressure gauge body when calibrating the pressure gauge, the motor 18 can be started, and the output shaft of the motor 18 drives the second gear 17 to rotate. The output end of the motor 18 engages with the first gear 16 through the second gear 17 to drive the two cams 12 to rotate. The two cams 12 push the knocking rod 9 to move to the right, and the spring 10 is compressed. When the cam 12 is away from the fixed block 11, the knocking rod 9 will move to the left under the elastic action of the spring 10 and quickly knock on the pressure gauge body, so that the function of automatically knocking the pressure gauge can be realized, which can further improve the degree of automation of the equipment.

[0028] For pressure gauges of larger or smaller specifications, the screw rod 6 can be rotated to make the movable frame 7 drive the mounting housing 15 to move left or right, so as to knock pressure gauges of different specifications, thereby expanding the application range of the device.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and practical concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic calibration device for a pressure instrument, comprising a calibrator body (1), a test stand (4) and a mounting housing (15), characterized in that: The test frame (4) is provided with a placement frame (5), and the installation shell (15) is provided with a knocking mechanism for knocking the pressure gauge, the knocking mechanism comprises two rotating shafts rotatably connected in the installation shell (15), and the two rotating shafts are fixedly connected with a cam (12) and a first gear (16), the side wall of the installation shell (15) is installed with a motor (18) through a mounting assembly, and the output shaft of the motor (18) is fixedly connected with a second gear (17), the inner wall of the installation shell (15) is elastically connected with a knocking rod (9) through a spring (10), and the two side walls of the knocking rod (9) are fixedly connected with a fixed block (11), and the placement frame (5) is provided with a driving mechanism for driving the installation shell (15) to move.

2. The automatic calibration device for a pressure instrument according to claim 1, characterized in that: The driving mechanism comprises a sliding frame (8) fixedly connected to the upper end of the placement frame (5); the upper end of the sliding frame (8) is slidably connected to a moving frame (7); and a screw rod (6) is provided on the inner wall of the sliding frame (8).

3. The automatic calibration device for a pressure instrument according to claim 2, characterized in that: Two latches (13) are provided through the side wall of the placement rack (5), and bolts (14) are provided through the bottom of the latches (13).

4. The automatic calibration device for a pressure instrument according to claim 3, characterized in that: A storage box (2) is fixedly connected to the side wall of the calibration instrument body (1), and a side plate (3) is provided through the side wall of the storage box (2).

5. The automatic calibration device for a pressure instrument according to claim 4, characterized in that: An iron sheet is fixedly connected to the side wall of the storage box (2), and two magnets are fixedly connected to the side wall of the side plate (3).

6. The automatic calibration device for a pressure instrument according to claim 5, characterized in that: The side wall of the knocking rod (9) is provided with a roller, and the side wall of the cam (12) is also provided with a roller.

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