Pressure gauge calibration device

Abstract

The utility model discloses a pressure gauge calibration device, and relates to the technical field of pressure gauge calibration, according to the pressure gauge calibration device, firstly, a clamping plate is taken out, a plurality of pressure gauges are uniformly installed on each pressure gauge connector by a feeding and discharging worker, and then the pressure gauges are transmitted to a calibration worker; the whole clamping plate is clamped to the calibration equipment for calibration work of a plurality of pressure gauges, the equipment is provided with double stations, meanwhile, a worker for feeding and discharging continues to install the pressure gauges through the other clamping plate, follow-up work is carried out alternately, most of feeding and discharging work which is carried out in sequence is conveniently converted into parallel simultaneous operation, and the working efficiency is improved. The clamping plates are clamped into the clamping grooves, the connecting nozzles are inserted into the corresponding butt joint inserting openings correspondingly, the electric telescopic rods are matched to drive the connecting frame and the rubber limiting pad to move downwards till the connecting frame and the rubber limiting pad are attached to the clamping plates, and meanwhile the sealing performance of equipment connection is improved through the O-shaped rings, the wear-resisting rings and the sealing pads.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauge calibration, in particular to a pressure gauge calibration device. Background Art

[0002] A pressure gauge is an instrument that uses an elastic element as a sensitive element to measure and indicate pressure higher than the ambient pressure. It is widely used in almost all industrial processes and scientific research fields, and can be found everywhere in thermal pipelines, oil and gas transmission, water and gas supply systems, vehicle repair and maintenance shops, etc., especially in industrial process control and technical measurement. Mechanical pressure gauges are increasingly widely used because of their elastic sensitive elements with high mechanical strength and easy production. The service life and performance of pressure gauges will change with time and changes in usage conditions, so they need to be calibrated regularly. As an important industrial measurement tool, pressure gauges are extremely important to calibrate. Choosing appropriate calibration methods and regular calibration can ensure their precision, accuracy and reliability.

[0003] For example, patent number CN218455521U, the utility model provides a pressure gauge calibration device, belonging to the technical field of barometer calibration equipment. The utility model includes a base, the base is hollow inside and one side is open, a card slot is opened on the upper side of the base close to the opening, a sealing seat is arranged inside the base corresponding to the card slot, the sealing seat is hollow inside, an air hole is arranged in the middle of the upper surface, an annular sealing ring is arranged on the edge of the upper surface of the sealing seat, one side of the sealing seat is connected to an air inlet pipe, and a lifting mechanism is arranged on the bottom surface of the sealing seat. The utility model clamps the flange with the sealing seat and the base, so that the calibration device can be applied to flanges of different sizes, the overall structure is simple, the operation is easy, and the working efficiency and detection accuracy of the pressure gauge detection are effectively improved.

[0004] When the existing pressure gauge calibration device is working, the pressure gauge needs to be loaded, unloaded, disassembled and assembled, and the pressure gauge calibration operation must be carried out in sequence. Most equipment has certain limitations in the planning and utilization of operating time. In addition, the more the number of calibrated pressure gauges, the longer the time spent on loading, unloading, disassembling and assembling operations, which is not conducive to improving the calibration work efficiency. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a pressure gauge calibration device to solve the problem raised in the above background technology that the existing pressure gauge calibration device needs to perform loading, unloading, disassembling and assembling operations on the pressure gauge when working, and the pressure gauge calibration operations must be performed in sequence. Most equipment has certain limitations on the planning and utilization of operating time, and the more the number of calibrated pressure gauges, the longer the time spent on loading, unloading, disassembling and assembling operations, which is not conducive to improving the calibration work efficiency.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a pressure gauge calibration device, comprising an equipment shell, a calibration mounting seat is fixedly installed at the lower end inside the equipment shell, a connecting air cavity is opened inside the calibration mounting seat, a calibration gas transmission equipment body is fixedly installed at the front end of the calibration mounting seat, the upper end of the calibration mounting seat extends to the outer side of the equipment shell and is provided with a snap-in groove, the upper end of the connecting air cavity is provided with a docking socket, a snap-in plate is provided on the inner side of the snap-in groove, a connecting pipe is fixedly installed on the inner side of the snap-in plate, the upper end of the connecting pipe extends to the upper side of the snap-in plate and is fixedly installed with a pressure gauge connecting joint, the lower end of the connecting pipe extends to the lower side of the snap-in plate and is fixedly installed with a connecting nozzle, electric telescopic rods are fixedly installed on the left and right sides inside the calibration mounting seat, the output end of the electric telescopic rod extends to the outer side of the calibration mounting seat and is fixedly installed with a connecting frame, and the lower end of the connecting frame is fixedly installed with a rubber limit pad.

[0007] Preferably, the connecting air cavity and the calibration gas delivery device body are evenly distributed, and the connecting air cavity and the calibration gas delivery device body are connected to each other.

[0008] Preferably, the lower end of the calibration gas transmission equipment body is fixedly connected to the equipment housing, and the upper end of the docking socket extends to the inner side of the snap-fit ​​groove and is connected to the snap-fit ​​groove.

[0009] Preferably, the connecting pipes are evenly distributed, and the snap-fit ​​plates are snap-fitted and connected with the snap-fit ​​grooves.

[0010] Preferably, a sealing groove is provided on the side of the lower end of the clamping plate, and a sealing gasket is fixedly installed on the inner side of the sealing groove.

[0011] Preferably, a guide port is provided at the lower end of the connection nozzle, and the lower end of the connection nozzle extends to the inner side of the docking socket and is slidably connected to the docking socket.

[0012] Preferably, a wear-resistant ring is fixedly installed on the lower side of the inner surface of the docking socket, and an O-ring is fixedly installed on the upper side of the surface of the connecting nozzle.

[0013] Preferably, the output end of the electric telescopic rod is slidably connected to the calibration mounting seat, and the lower end of the rubber limiting pad is fit-connected to the clamping plate.

[0014] Beneficial Effects

[0015] The utility model provides a pressure gauge calibration device. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The pressure gauge calibration device first takes out the clamping plate, and the loading and unloading staff uniformly installs multiple pressure gauges on the connecting joints of each pressure gauge, and then passes it to the calibration staff, who clamps the clamping plate as a whole onto the calibration equipment to calibrate multiple pressure gauges. The equipment is provided with double workstations, and the loading and unloading staff use another clamping plate to continue to install the pressure gauges, and they are performed alternately in subsequent work, which is convenient for converting most of the loading and unloading operations performed sequentially into parallel and simultaneous operations, which is conducive to optimizing the planning and utilization of operating time and improving work efficiency.

[0017] 2. When calibrating the pressure gauge calibration device, the clamping plate is inserted into the clamping groove, and the connecting nozzles are respectively inserted into the corresponding docking sockets. The electric telescopic rod is used to drive the connecting frame and the rubber limit pad to move downward until the rubber limit pad fits tightly against the clamping plate. At the same time, the components of the O-ring, wear-resistant ring and sealing gasket are used to improve the sealing of the equipment connection, which is conducive to ensuring the accuracy of the calibration operation and improving the convenience of using the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the calibration mounting seat structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the docking socket structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the clamping plate of the utility model.

[0023] In the figure: 1. Equipment housing; 2. Calibration mounting seat; 3. Connecting air cavity; 4. Calibration gas transmission equipment body; 5. Snap-fit ​​groove; 6. Docking socket; 7. Snap-fit ​​plate; 8. Connecting pipe; 9. Pressure gauge connecting joint; 10. Connecting nozzle; 11. Electric telescopic rod; 12. Connecting frame; 13. Rubber limit pad; 14. Sealing groove; 15. Sealing pad; 16. Wear-resistant ring; 17. O-ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: a pressure gauge calibration device, including an equipment shell 1, a calibration mounting seat 2 is fixedly installed at the lower end of the equipment shell 1, a connecting air cavity 3 is opened inside the calibration mounting seat 2, a calibration gas transmission equipment body 4 is fixedly installed at the front end of the calibration mounting seat 2, the upper end of the calibration mounting seat 2 extends to the outside of the equipment shell 1 and is provided with a snap-fit ​​groove 5, a docking socket 6 is opened at the upper end of the connecting air cavity 3, a snap-fit ​​plate 7 is arranged on the inner side of the snap-fit ​​groove 5, a connecting pipe 8 is fixedly installed on the inner side of the snap-fit ​​plate 7, the upper end of the connecting pipe 8 extends to the upper side of the snap-fit ​​plate 7 and is fixedly installed with a pressure gauge connecting joint 9, the connecting air cavity 3 and the calibration gas transmission equipment body 4 are evenly distributed, and the connecting air cavity 3 and the calibration gas transmission equipment body 4 are evenly distributed. The lower end of the calibration gas transmission equipment body 4 is fixedly connected to the equipment housing 1, and the docking socket 6 is extended to the inner side of the clamping groove 5 at the upper end and is connected to the clamping groove 5. The connecting pipes 8 are evenly distributed. First, the clamping plate 7 is taken out, and the loading and unloading staff uniformly installs multiple pressure gauges on each pressure gauge connection joint 9, and then passes it to the calibration staff. The clamping plate 7 is clamped as a whole to the calibration equipment to perform calibration of multiple pressure gauges. The equipment is provided with a double station. At the same time, the loading and unloading staff use another clamping plate 7 to continue to install the pressure gauge, and alternate in subsequent work, which is convenient for converting most of the loading and unloading operations performed in sequence into parallel and simultaneous operations, which is conducive to optimizing the planning and utilization of operation time and improving work efficiency.

[0026] The lower end of the connecting pipe 8 extends to the lower side of the clamping plate 7 and is fixedly installed with a connecting nozzle 10. Electric telescopic rods 11 are fixedly installed on the left and right sides of the calibration mounting seat 2. The output end of the electric telescopic rod 11 extends to the outer side of the calibration mounting seat 2 and is fixedly installed with a connecting frame 12. A rubber limiting pad 13 is fixedly installed at the lower end of the connecting frame 12. The clamping plate 7 is clamped and connected with the clamping groove 5. A sealing groove 14 is provided on the side of the lower end of the clamping plate 7. A sealing gasket 15 is fixedly installed on the inner side of the sealing groove 14. A guide port is provided at the lower end of the connecting nozzle 10. The lower end of the connecting nozzle 10 extends to the inner side of the docking socket 6 and is slidably connected with the docking socket 6. The lower side of the inner surface of the docking socket 6 is fixedly installed A wear-resistant ring 16 is installed, and an O-ring 17 is fixedly installed on the upper side of the surface of the connecting nozzle 10. The output end of the electric telescopic rod 11 is slidably connected to the calibration mounting seat 2, and the lower end of the rubber limit pad 13 is fitted and connected to the snap plate 7. During calibration, the snap plate 7 is inserted into the snap groove 5, and the connecting nozzle 10 is respectively inserted into the corresponding docking socket 6, and the electric telescopic rod 11 drives the connecting frame 12 and the rubber limit pad 13 to move downward until the rubber limit pad 13 is tightly fitted with the snap plate 7. At the same time, the components of the O-ring 17, the wear-resistant ring 16 and the sealing pad 15 are used to improve the sealing of the equipment connection, which is beneficial to ensure the accuracy of the calibration operation and improve the convenience of equipment use.

[0027] During work, first take out the snap plate 7, and the loading and unloading staff will uniformly install multiple pressure gauges on each pressure gauge connecting joint 9, and then pass it to the calibration staff, who will snap the snap plate 7 as a whole onto the calibration equipment to calibrate multiple pressure gauges. The equipment is provided with a double workstation, and the loading and unloading staff will continue to install the pressure gauges using another snap plate 7, and they will be performed alternately in subsequent work, so as to facilitate the conversion of most of the loading and unloading operations that are performed sequentially into parallel and simultaneous operations. During calibration, the snap plate 7 is snapped into the snap groove 5, and the connecting nozzles 10 are respectively inserted into the corresponding docking sockets 6, and the electric telescopic rod 11 is used to drive the connecting frame 12 and the rubber limit pad 13 to move downward until the rubber limit pad 13 is tightly fitted with the snap plate 7, and at the same time, the components of the O-ring 17, the wear-resistant ring 16 and the sealing pad 15 are used to improve the sealing of the equipment connection.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A pressure gauge calibration device, comprising a device housing (1), characterized in that: The front and rear sides of the device housing (1) are both fixedly mounted with a calibration mounting seat (2), a connecting air cavity (3) is provided inside the calibration mounting seat (2), a calibration gas transmission device body (4) is fixedly mounted on the side of the calibration mounting seat (2), the upper end of the calibration mounting seat (2) extends to the outside of the device housing (1) and is provided with a snap-fit ​​groove (5), the upper end of the connecting air cavity (3) is provided with a docking socket (6), a snap-fit ​​plate (7) is provided on the inner side of the snap-fit ​​groove (5), and a connecting gas socket (6) is fixedly mounted on the inner side of the snap-fit ​​plate (7). The connecting tube (8) is provided with a pressure gauge connecting joint (9) which is fixedly mounted on the upper side of the clamping plate (7), and the connecting tube (8) is provided with a connecting nozzle (10) which is fixedly mounted on the lower side of the clamping plate (7). The left and right sides of the calibration mounting seat (2) are both fixedly mounted with electric telescopic rods (11). The output end of the electric telescopic rod (11) extends to the outer side of the calibration mounting seat (2) and is fixedly mounted with a connecting frame (12). The lower end of the connecting frame (12) is fixedly mounted with a rubber limit pad (13).

2. A pressure gauge calibration device according to claim 1, characterized in that: The connecting air cavity (3) and the calibration gas delivery device body (4) are evenly distributed, and the connecting air cavity (3) and the calibration gas delivery device body (4) are connected to each other.

3. A pressure gauge calibration device according to claim 2, characterized in that: The lower end of the calibration gas transmission device body (4) is fixedly connected to the device housing (1), and the upper end of the docking socket (6) extends to the inner side of the snap-fit ​​groove (5) and is connected to the snap-fit ​​groove (5).

4. A pressure gauge calibration device according to claim 3, characterized in that: The connecting pipes (8) are evenly distributed, and the clamping plates (7) are clamped and connected with the clamping grooves (5).

5. A pressure gauge calibration device according to claim 4, characterized in that: A sealing groove (14) is provided on the side of the lower end of the clamping plate (7), and a sealing gasket (15) is fixedly installed on the inner side of the sealing groove (14).

6. A pressure gauge calibration device according to claim 1, characterized in that: The lower end of the connection nozzle (10) is provided with a guide port, and the lower end of the connection nozzle (10) extends to the inner side of the docking socket (6) and is slidably connected to the docking socket (6).

7. A pressure gauge calibration device according to claim 6, characterized in that: A wear-resistant ring (16) is fixedly mounted on the lower side of the inner surface of the docking socket (6), and an O-ring (17) is fixedly mounted on the upper side of the surface of the connecting nozzle (10).

8. A pressure gauge calibration device according to claim 1, characterized in that: The output end of the electric telescopic rod (11) is slidably connected to the calibration mounting seat (2), and the lower end of the rubber limiting pad (13) is fitted and connected to the clamping plate (7).

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