CN210375526U

CN210375526U - High-precision pressure gauge calibrating device

Info

Publication number: CN210375526U
Application number: CN201921609013.3U
Authority: CN
Inventors: 刘淑云; 李锐; 陈贵花
Original assignee: Guizhou Hongda Lixin Measurement And Testing Co Ltd
Current assignee: Guizhou Hongda Lixin Measurement And Testing Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-04-21
Anticipated expiration: 2029-09-25

Abstract

The application discloses a high-precision pressure gauge calibrating device in the technical field of pressure gauge detection, which comprises a base and an air cylinder, wherein the base is provided with a display screen and a connector, the display screen and the connector are connected with the base through an adapter tube, a one-way valve is fixedly arranged on the adapter tube, the air cylinder is arranged between the display screen and the connector, a middle rotating shaft is sleeved on the outer surface of the air cylinder, a transmission oil pipe is fixedly connected at the middle position of the upper surface of the base, an oil cup is fixedly connected at the free end of the transmission oil pipe, an oil control hand wheel is arranged above the oil cup, a rotating hand wheel is fixedly connected at the right end of the air cylinder, a plurality of blind holes are annularly formed in the side wall of the connector, balls are arranged in the blind holes, a pressure cavity is arranged in the side wall of the connector, the annular bladder is in communication with the pressure chamber. The problem that the gasket needs to be frequently replaced is solved.

Description

High-precision pressure gauge calibrating device

Technical Field

The utility model relates to a manometer examination technical field, concretely relates to high accuracy manometer calibrating installation.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the environmental pressure, is very common in application, almost extends to all the fields of industrial processes and scientific researches, is visible everywhere in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance and repair shops and the like, and is more and more widely applied due to the characteristics of high mechanical strength, convenient production and the like of the elastic sensitive element of the mechanical pressure gauge in the industrial process control and technical measurement process.

When examining the manometer, for guaranteeing the leakproofness, need seal at manometer connection position winding auxiliary material like the gasket, nevertheless because the bottom and the gasket of manometer are rigid connection when installing the manometer, so often examine a manometer and just need change a gasket.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is anticipated to provide a high accuracy manometer calibrating installation to solve the problem that the gasket was often changed to current manometer calibrating installation.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a high accuracy manometer calibrating installation, includes base and inflator, the both sides of base are equipped with display screen and connector respectively, display screen and external power source electric connection, display screen and connector are connected through the linking pipe with the base, the outer fixed surface of linking pipe installs check valve, the inflator is between display screen and connector, the inflator all switches on with connector and display screen, the surface cover of inflator is equipped with the pivot, the upper surface intermediate position department fixed connection transmission oil pipe of base, transmission oil pipe's free end fixedly connected with oil cup, the top of oil cup is provided with oil control hand wheel, the right-hand member fixedly connected with rotation hand wheel of inflator, a plurality of blind holes have been seted up to the hoop on the lateral wall of connector, be equipped with the ball in the blind hole, be equipped with the pressure chamber in the lateral wall of connector, sliding connection piston in the pressure chamber, the piston up end is fixed with the slide bar, the slide bar runs through connector lateral wall and ball butt, slide bar and connector lateral wall sliding connection, the bottom of connector is equipped with annular gasbag, annular gasbag and pressure chamber intercommunication.

The utility model discloses a theory of operation: when the scheme is used, the display screen is well connected with an external power supply, the display screen starts to work, the pressure gauge to be detected is installed in the connector, the ball is extruded to move towards the blind hole in the process that the lower end part of the pressure gauge enters the connector, the sliding rod is pressed to slide downwards in the moving process, the piston is pushed to press downwards, and then liquid in the pressure cavity is pressed to move towards the annular air bag, the annular air bag deforms, so that the small bulge at the joint of the pressure gauge is wrapped in the annular air bag, meanwhile, a buffer layer is formed between the gasket and the pressure gauge, the damaged condition of the gasket is greatly reduced, the condition of oil leakage can be prevented, when the pressure gauge is installed, the one-way valve is opened, the rotation amplitude of the rotating hand wheel and the oil control hand wheel can be adjusted, and the pressure gauge to be detected is detected through the fixed connection of the air, and the detection result is released through a display screen.

The utility model has the advantages that: this scheme is mainly by the in-process that the lower tip of manometer enters into the connector, oppresses the ball for slide bar with its butt slides down, and then fills liquid and makes annular gasbag parcel in protruding outside into annular gasbag, and then forms the buffer layer

The optimization of the basic technical scheme is as follows:

further, the number of the blind holes is four. So that the force applied to each slide bar is more uniform.

Further, the pressure chamber is an annular chamber, and the piston is an annular piston. The pressure thus created is greater.

Further, the bottom of base is equipped with the rubber pad, be equipped with buffer spring between rubber pad and the base. The rubber pad and the buffer spring are arranged, so that the influence of external vibration on the detection result can be reduced.

Further, the portion of the slide rod in contact with the ball is arc-shaped. Thus, the ball bearing can press the sliding rod conveniently.

Drawings

Fig. 1 is a schematic structural view of a high-precision pressure gauge calibrating apparatus of the present invention;

fig. 2 is a schematic structural diagram of the connecting head in fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a display screen 1, a one-way valve 2, a base 3, a rubber pad 4, a middle rotating shaft 5, a calibrator 6, a transmission oil pipe 7, an air cylinder 8, a spring 9, a rotating hand wheel 10, a connecting pipe 11, a connector 12, a pressure gauge 13 to be tested, an oil cup 14, an oil control hand wheel 15, a ball 16, a sliding rod 17, a piston 18, an annular air cushion 19 and a pressure cavity 20.

The embodiment is basically as shown in the attached figures 1 and 2: a high-precision pressure gauge calibrating device comprises a base 3, a calibrator 6 and an air cylinder 8, wherein the bottom of the base 3 is provided with a rubber pad 4, a buffer spring 9 is arranged between the rubber pad 4 and the base 3, the calibrator 6 is fixed on the base 3, two sides of the calibrator 6 are respectively provided with a display screen 1 and a connector 12, the display screen 1 is electrically connected with an external power supply, the display screen 1 and the connector 12 are connected with the base 3 through a connecting pipe 11, the outer surface of the connecting pipe 11 is fixedly provided with a one-way valve 2, the air cylinder 8 is arranged between the display screen 1 and the connector 12, the air cylinder 8, the connector 12 and the display screen 1 are communicated, the outer surface of the air cylinder 8 is sleeved with a middle rotating shaft 5, the middle position of the upper surface of the base 3 is fixedly connected with a transmission oil pipe 7, the free end of the transmission oil pipe 7 is fixedly connected with an oil cup 14, an oil control, four blind holes have been seted up to the ring orientation on the lateral wall of connector 12, even annular sets up, all be equipped with ball 16 in the blind hole, be equipped with annular pressure chamber 20 in the lateral wall of connector 12, sliding connection and the sealed piston 18 of pressure chamber 20 in the pressure chamber 20, piston 18 is annular, the piston 18 up end is fixed with four slide bars 17, slide bar 17 runs through connector 12 lateral wall all with the 16 butts of ball that correspond, slide bar 17 is circular-arc with the position of the 16 butts of ball, do benefit to and reduce frictional force between them, the bottom of connector 12 is equipped with annular gasbag, annular gasbag and pressure chamber 20 intercommunication, annular gasbag's high general selection and bellied difference in height are not much.

The specific implementation process is as follows: when the scheme is used, the display screen 1 is well connected with an external power supply, the display screen 1 starts to work, a pressure gauge to be detected is installed in the connector 12, the ball 16 is squeezed to move towards the blind hole in the process that the lower end part of the pressure gauge enters the connector 12, the sliding rod 17 is pressed to slide downwards in the moving process, the piston 18 is pushed downwards, liquid in the pressure cavity 20 is further pressed to move towards the annular air bag, the annular air bag deforms, a small bulge at the joint of the pressure gauge is further wrapped in the annular air bag, a buffer layer is formed between the gasket and the pressure gauge, the damaged situation of the gasket is greatly reduced, meanwhile, the situation of oil leakage can be prevented, after the pressure gauge is installed, the one-way valve 2 is opened, the rotating amplitude of the rotating hand wheel 10 and the oil control hand wheel 15 can be adjusted, and then the air cylinder 8 is fixedly connected with the middle rotating shaft, the detected pressure gauge is detected, and the detection result is put in through the display screen 1.

Claims

1. The utility model provides a high accuracy manometer calibrating installation, includes base and inflator, the both sides of base are equipped with display screen and connector respectively, display screen and external power source electric connection, display screen and connector are connected through linking pipe with the base, the fixed surface of linking pipe installs check valve, the inflator is between display screen and connector, the inflator all switches on with connector and display screen, the surface cover of inflator is equipped with the pivot in, the upper surface intermediate position department fixed connection transmission oil pipe of base, transmission oil pipe's free end fixedly connected with oil cup, the top of oil cup is provided with oil control hand wheel, the right-hand member fixedly connected with of inflator rotates the hand wheel, its characterized in that: the utility model discloses a pneumatic connector, including connector, ball, pressure chamber, slide bar, connector, ball, slide bar, annular gasbag, the hoop has been seted up on the lateral wall of connector, be equipped with the ball in the blind hole, be equipped with the pressure chamber in the lateral wall of connector, sliding connection piston in the pressure chamber, the piston up end is fixed with the slide bar, the slide bar runs through connector lateral wall and ball butt, the bottom of connector is equipped with annular gasbag, annular gasbag and pressure chamber intercommunication.

2. A high accuracy calibrating device for pressure gauge according to claim 1, characterized in that: the number of the blind holes is four.

3. A high accuracy calibrating device for pressure gauge according to claim 2, characterized in that: the pressure chamber is an annular chamber, and the piston is an annular piston.

4. A high accuracy manometer calibrating device as claimed in claim 3, characterized in that: the bottom of base is equipped with the rubber pad, be equipped with buffer spring between rubber pad and the base.

5. A high accuracy manometer calibrating device as claimed in claim 4, wherein: the part of the sliding rod, which is abutted against the ball, is arc-shaped.