Verification device of pressure transmitter

Abstract

The utility model relates to the technical field of pressure transmitters, in particular to a verification device of a pressure transmitter, which comprises a bottom plate, a support frame is mounted on the bottom plate, one side of the support frame is connected with a mounting plate, the other side of the support frame is provided with a mounting port, and the lower surface of the mounting plate is connected with a verification head. A hydraulic telescopic rod and a limiting assembly are connected to the bottom plate, a connecting plate is connected to the hydraulic telescopic rod and the limiting assembly, a rotating motor is connected to the connecting plate, a supporting plate is connected to the output end of the rotating motor, a limiting plate is connected to the supporting plate, and the two sides of the limiting plate are each connected with a clamping device. According to the utility model, the pressure transmitter can be installed at the clamping device below the installation port, after installation, the side is moved to the position below the verification head through the rotating motor for verification, meanwhile, the pressure transmitter is installed and detached at the clamping device rotating to the position below the installation port, and continuous verification of the pressure transmitter can be realized in the process. The verification efficiency of the pressure transmitter can be improved.

Description

Technical Field

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

[0002] Pressure transmitters convert pressure into electrical signals for monitoring, control, or recording in control systems or display devices. A pressure transmitter typically consists of a sensor and an electronic converter. The sensor usually comprises a sensitive element that detects changes in external pressure. When subjected to pressure, the sensor generates corresponding mechanical deformation or electrical signals. The electronic converter converts the sensor's output mechanical deformation or electrical signals into standardized electrical signals. These signals can be transmitted via cable to a control room or other equipment for monitoring, control, or recording pressure values. Existing pressure transmitter calibration devices require a single-point "installation-calibration-removal" process. The removal and installation processes are time-consuming, hindering continuous calibration and resulting in low efficiency. Utility Model Content

[0003] The purpose of this application is to provide a calibration device for a pressure transmitter, which aims to solve the problems in the prior art.

[0004] This application provides a calibration device for a pressure transmitter, including a base plate, on which a support frame is fixedly mounted. The support frame is N-shaped, with a mounting plate fixedly connected to one side of the support frame's horizontal plate and an installation opening on the other side. A calibration head is fixedly connected to the lower surface of the mounting plate. A hydraulic telescopic rod and a limiting assembly are fixedly connected to the base plate, and a connecting plate is fixedly connected to the hydraulic telescopic rod and the limiting assembly. A rotary motor is fixedly connected to the connecting plate, and a support plate is fixedly connected to the output end of the rotary motor. A limiting plate is fixedly connected to the support plate, and a clamping device is fixedly connected to each side of the limiting plate. The clamping device includes a fixed clamping plate and a movable clamping plate. The fixed clamping plate is fixedly connected to the support plate, and the movable clamping plate is slidably connected to the support plate. Rubber pads are fixedly connected to the fixed clamping plate, the movable clamping plate, and the side of the limiting plate that contacts the pressure transmitter.

[0005] Furthermore, the mounting port is U-shaped with two arc-shaped ports. The mounting port is located directly above one side of the clamping device, and the calibration head is located directly above the other side of the clamping device.

[0006] Furthermore, there is one hydraulic telescopic rod and three limiting components, which are located on the lower surface of the connecting plate near the four vertices. The rod body of the hydraulic telescopic rod is fixedly connected to the base plate, and the movable end of the hydraulic telescopic rod is fixedly connected to the connecting plate. The limiting components include limiting posts and limiting grooves. The limiting posts are slidably connected in the limiting grooves and are fixedly connected to the connecting plate. The limiting grooves are fixedly connected to the base plate.

[0007] Furthermore, a sliding groove is provided in the support plate, a sliding column is slidably connected in the sliding groove, a spring is connected between the sliding groove and the sliding column, a connecting block is fixedly connected to the end of the sliding column away from the spring, and the connecting block is fixedly connected to the movable clamping plate.

[0008] Furthermore, the groove opening of the slide is provided with an annular step, the slide column is double cylindrical, one part of the slide column is slidably connected to the groove wall of the slide, and the other part of the slide column is slidably connected to the annular step at the groove opening of the slide.

[0009] Furthermore, the slide has two sets, and the two sets of slides are connected symmetrically with the vertical central axis of the limiting plate as the central axis of symmetry. Each set of slides includes two parallel slides, and a connecting block is fixedly connected to two sliding columns in the same set of slides.

[0010] Furthermore, the lower half of the side of the fixed clamp and the movable clamp that contacts the pressure transmitter is vertical, while the upper half is inclined.

[0011] The beneficial effects of this utility model are: This utility model can install a pressure transmitter at the clamping device located below the mounting port. After installation, the side is moved to the underside of the calibration head by a rotary motor for calibration. At the same time, the pressure transmitter is installed and removed at the clamping device located below the mounting port. This process can realize continuous calibration of the pressure transmitter and improve the calibration efficiency of the pressure transmitter. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0014] Figure 3 This is an enlarged schematic diagram of part A.

[0015] In the picture:

[0016] 1-Base plate; 2-Support frame; 3-Mounting plate; 4-Mounting port; 5-Verification head; 6-Hydraulic telescopic rod; 7-Connecting plate; 8-Rotating motor; 9-Support plate; 10-Limiting plate; 11-Fixed clamping plate; 12-Moving clamping plate; 13-Rubber pad; 14-Limiting post; 15-Limiting groove; 16-Sliding groove; 17-Sliding column; 18-Spring; 19-Connecting block. Detailed Implementation

[0017] 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.

[0018] like Figure 1-3 The pressure transmitter calibration device shown includes a base plate 1, on which a support frame 2 is fixedly mounted. The support frame 2 is N-shaped, with a mounting plate 3 fixedly connected to one side of the horizontal plate of the support frame 2, and a mounting opening 4 on the other side of the horizontal plate. A calibration head 5 is fixedly connected to the lower surface of the mounting plate 3. A hydraulic telescopic rod 6 and a limiting assembly are fixedly connected to the base plate 1. A connecting plate 7 is fixedly connected to the hydraulic telescopic rod 6 and the limiting assembly, and a rotary motor 8 is fixedly connected to the connecting plate 7. A support plate 9 is fixedly connected to the output end of the machine 8. A limit plate 10 is fixedly connected to the support plate 9. A clamping device is fixedly connected to each side of the limit plate 10. The clamping device includes a fixed clamping plate 11 and a movable clamping plate 12. The fixed clamping plate 11 is fixedly connected to the support plate 9, and the movable clamping plate 12 is slidably connected to the support plate 9. A rubber pad 13 is fixedly connected to the side of the fixed clamping plate 11, the movable clamping plate 12, and the limit plate 10 that contacts the pressure transmitter. The rubber pad 13 can prevent wear during the installation and removal of the pressure transmitter.

[0019] The mounting port 4 is U-shaped, with its two ends arc-shaped to prevent injury from bumps during manual installation of the pressure transmitter. The mounting port 4 is located directly above one side of the clamping device, and the calibration head 5 is located directly above the other side of the clamping device.

[0020] There is one hydraulic telescopic rod 6 and three limiting components, located near the four vertices on the lower surface of the connecting plate 7. The rod body of the hydraulic telescopic rod 6 is fixedly connected to the base plate 1, and the movable end of the hydraulic telescopic rod 6 is fixedly connected to the connecting plate 7. The limiting components include limiting posts 14 and limiting grooves 15. The limiting posts 14 are slidably connected in the limiting grooves 15, and the limiting posts 14 are fixedly connected to the connecting plate 7. The limiting grooves 15 are fixedly connected to the base plate 1. This structure enables the connecting plate 7 to move smoothly in the vertical direction.

[0021] The support plate 9 has a sliding groove 16, and a sliding column 17 is slidably connected in the sliding groove 16. A spring 18 is connected between the sliding groove 16 and the sliding column 17. A connecting block 19 is fixedly connected to the end of the sliding column 17 away from the spring 18. The connecting block 19 is fixedly connected to the movable clamping plate 12.

[0022] The groove 16 has an annular step at its opening, and the sliding column 17 is double-cylinder in shape. One part of the sliding column 17 is slidably connected to the groove wall of the groove 16, and the other part of the sliding column 17 is slidably connected to the annular step at the opening of the groove 16. This structure prevents the sliding column 17 from detaching from the groove 16.

[0023] There are two sets of slide grooves 16, which are centrally symmetrically connected about the vertical central axis of the limiting plate 10. Each set of slide grooves 16 includes two parallel slide grooves 16, and a connecting block 19 is fixedly connected to two sliding columns 17 within the same set of slide grooves 16. Each set of slide grooves 16 and its internal structure enable the movable clamping plate 12 on one side to move smoothly in the horizontal direction.

[0024] The lower half of the fixed clamp 11 and the movable clamp 12 on the side that contacts the pressure transmitter is vertical, while the upper half is inclined. This structure allows the pressure transmitter to be quickly placed between the fixed clamp 11 and the movable clamp 12. At the same time, with the help of the spring 18, the movable clamp 12 and the fixed clamp 11 can clamp pressure transmitters of various sizes.

[0025] In use, the pressure transmitter is installed at the clamping device located below the mounting port 4. After installation, the support plate 9 is moved down by the hydraulic telescopic rod 6, and then moved to below the calibration head 5 by the rotary motor 8. At this time, the support plate 9 is moved up by the hydraulic telescopic rod 6 so that the calibration head 5 is in contact with the calibration point of the pressure transmitter for calibration. At the same time, the pressure transmitter is installed and removed at the clamping device located below the mounting port 4. Repeating this process can achieve continuous calibration of the pressure transmitter and improve the calibration efficiency of the pressure transmitter.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A calibration device for a pressure transmitter, characterized in that, The device includes a base plate on which a support frame is fixedly mounted. The support frame is N-shaped, with a mounting plate fixedly connected to one side of the support frame's horizontal plate and an installation opening on the other side. A calibration head is fixedly connected to the lower surface of the mounting plate. A hydraulic telescopic rod and a limiting assembly are fixedly connected to the base plate. A connecting plate is fixedly connected to the hydraulic telescopic rod and the limiting assembly. A rotary motor is fixedly connected to the connecting plate. A support plate is fixedly connected to the output end of the rotary motor. A limiting plate is fixedly connected to the support plate. A clamping device is fixedly connected to each side of the limiting plate. The clamping device includes a fixed clamping plate and a movable clamping plate. The fixed clamping plate is fixedly connected to the support plate, and the movable clamping plate is slidably connected to the support plate. Rubber pads are fixedly connected to the fixed clamping plate, the movable clamping plate, and the side of the limiting plate that contacts the pressure transmitter.

2. The calibration device for a pressure transmitter according to claim 1, characterized in that, The mounting port is U-shaped with two arc-shaped ports. The mounting port is located directly above one side of the clamping device, and the calibration head is located directly above the other side of the clamping device.

3. The calibration device for a pressure transmitter according to claim 1, characterized in that, There is one hydraulic telescopic rod and three limiting components, which are located on the lower surface of the connecting plate near the four vertices. The rod body of the hydraulic telescopic rod is fixedly connected to the base plate, and the movable end of the hydraulic telescopic rod is fixedly connected to the connecting plate. The limiting components include limiting posts and limiting grooves. The limiting posts are slidably connected in the limiting grooves and are fixedly connected to the connecting plate. The limiting grooves are fixedly connected to the base plate.

4. The calibration device for a pressure transmitter according to claim 1, characterized in that, The support plate has a sliding groove, and a sliding column is slidably connected in the sliding groove. A spring is connected between the sliding groove and the sliding column. A connecting block is fixedly connected to the end of the sliding column away from the spring. The connecting block is fixedly connected to the movable clamping plate.

5. The calibration device for a pressure transmitter according to claim 4, characterized in that, The groove opening has an annular step, and the sliding column is double cylindrical. One part of the sliding column is slidably connected to the groove wall, and the other part of the sliding column is slidably connected to the annular step at the groove opening.

6. The calibration device for a pressure transmitter according to claim 4, characterized in that, The slide has two sets, and the two sets of slides are connected symmetrically with the vertical central axis of the limiting plate as the central axis of symmetry. Each set of slides includes two parallel slides, and a connecting block is fixedly connected to two sliding columns in the same set of slides.

7. The calibration device for a pressure transmitter according to claim 1, characterized in that, The lower half of the fixed clamp and the movable clamp on the side that contacts the pressure transmitter is vertical, and the upper half is inclined.

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